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A-71
APR F 2000
'AT ANDS 6kell-
LOWER TOWN FORK':CREEK
STREAM RESTORATION PLAN
Stokes County, North Carolina
December 1999
Prepared For:
Stokes County Soil and Water Conservation
. District
Prepared By:
E A R T H `_ T E C H
701 Corporate Center Drive, Suite 475
Raleigh, North Carolina 27606
PRESENT CONDITION
Lower Town Fork Creek has been surveyed using geomorphologic techniques to
determine it's present condition. The longitudinal profile was surveyed for a length of
2,750 feet in order to determine the spacing, slopes and lengths of channel features. The
existing pool to pool spacing is 730 feet and 550 feet within the reach surveyed. The
length of the reference pool is 140 feet and the degraded pool had a length of 190 feet.
Two reference (one pool and one riffle/run) cross sections were surveyed to determine a
stable channel dimension. Two degraded (one pool and one run) cross sections were
surveyed to determine the degree of departure from stability. A full Rosgen Level III
assessment was completed to determine the present condition of the stream and its
departure from potential. The data and corresponding analysis can be found in the
following sections.
The degraded reach is located at a meander bend with no deep rooting vegetation on the
top of the bank. The outside of the meander is severely eroding. The channel is widening
and a central bar has formed in the channel. Large amounts of flood debris often
accumulate in this region.
RESTORATION/STABILIZATION TECHNIQUES
A combination of structural and biological techniques will be used to restore this reach to
stability. Two j-hook vanes will be utilized to lower the shear stress in the near bank
region by directing the velocity vectors away from the bank. A cross vane will be
installed to maintain channel grade, direct flows toward the center of the channel, and
provide a stable area for a future stream crossing installation.
A mixture of riparian grasses and woody vegetation plantings will be used to provide a
deep root mass to stabilize the stream banks and flood plain. Specifications can be found
in the Project Special Provisions section of this document.
EXISTING CONDITIONS
• Longitudinal Profile
• Riffle/Run Cross Section
• Pool Cross Section
• Pebble Count
Longitudinal Profile
Survey Date: November 24, 1999
Survey Party: K. Hall, D. Clinton
D. Clinton - Rod
Karen Hall - Recorder
TBM - Elevation (ft) 100
Sinuosity: 1.2-1.4
Drainage Area (sq. mi.): 130
BKF- ELEV- ELEV-
STATION HI FS-TW FS=WS upper ELEV-TW WS BKF up NOTES
1000 POWER LINE
1179 Reference Riffle/Run Cross Section
1642 Reference Pool Cros s Section
1754 Debris Jam
2047 Start of Project (sycamore tree on left bank just above deg raded section)
2047 100 13.9 12.8 2.3 86.1 87.2 97.7
2169 100 15.08 13.7 2.28 84.9 86.3 97.7
2279 100 15.28 13.99 84.7 86.0 Start of split channel
2328 100 15.68 13.28 84.3 86.7 Right channel
2348 100 16.12 13.81 3.5 83.9 86.2 96.5
2387 100 15.8 13.72 84.2 86.3
2420 100 15.8 13.84 84.2 86.2
2454 100 15.18 13.9 84.8 86.1
2478 100 16.14 13.91 83.9 86.1
2505 100 15.4 13.91 84.6 86.1 End of split channel
2533 100 15.9 14.28 84.1 85.7
2543 100 16.94 13.98 83.1 86.0
2568 100 15.38 14.26 84.6 85.7
2588 102.33 18.7 16.68 5.72 83.6 85.7 96.6 X-sect #2 in degraded reach
2609 100 16.56 14.31 83.4 85.7
2687 102.33 18.32 16.72 84.0 85.6
Longitudinal Profile (TW) - Town Creek
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PEBBLE COUNT
Site: TOWN FORK Date: 11/24/99
Pa : Karen Hall, Dan Clinton Reach: Reference station 11+79
Particle Counts
Inches Particle Millimeter Rt. Bank Channel Lft. Bank Total No. Item % % Cumulative
Silt/Clay < 0.062 S/C 6 6 14 26 26% 26%
Very Fine .062-.125 S 6 2 5 13 13% 39%
Fine .1125-.25 A 4 3 0 7 7% 46%
Medium .25-.50 N 4 6 0 10 10% 56%
Coarse .50-1.0 D 0 12 1 13 13% 69%
.04-.08 Very Coarse 1.0-2.0 S 0 16 0 16 16% 85%
.08-.16 Very Fine 2.0-4.0 0 11 0 11 11% 96%
.16-.22 Fine 4.0-5.7 G 0 3 0 3 3% 99%
.22-.31 Fine 5.7-8.0 R 0 1 0 1 1% 100%
.31 -.44 Medium 8.0-11.3 A 0 0 0 0 0% 100%
.44-.63 Medium 11.3-16.0 V 0 0 0 0 0% 100%
.63-.89 Coarse 16.0-22.6 E 0 0- 0 0 0% 100%
.89-1.26 Coarse 22.6-32.0 L 0 0 0 0 0% 100%
1.26 - 1.77 Very Coarse 32.0-45.0 S 0 0 0 0 0% 100%
1.77 - 2.5 Very Coarse 45.0-64.0 0 0 0 0 0% 100%
2.5-3.5 Small 64 - 90 C 0 0 0 0 0% 100%
3.5-5.0 Small 90 - 128 O 0 0 0 0 0% 100%
5.0-7.1 Large 128 - 180 B 0 0 0 0 0% 100%
7.1 -10.1 Large 180 - 256 L 0 0 0 0 0% 100%
10.1 -14.3 Small 256 - 362 B 0 0 0 0 0% 100%
14.3 - 20 Small 362 - 512 L 0 0 0 0 0% 100%
20 - 40 Medium 512 - 1024 D 0 0 0 0 0% 100%
40 - 80 Lr - Very Lr 1024 - 2048 R 0 0 0 0 0% 100%
Bedrock BDRK 0 0 0 0 0% 100%
Totals 20 60 20 100 100% 100%
Particle Size Distribution
Reference Station 11+79
100%
90%
80%
Z
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60%
V
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40%
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------------------------ -------------------------------------------
-------------------- -----------------------------------------------
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------------------------
0.1
1 10 100
Particle Size - Millimeter
1000
PROPOSED CONDITIONS
• Longitudinal Profile
• Riffle Cross Section
• Pool Cross Section
• Run Cross Section
• Glide Cross Section
PROPOSED LONGITUDINAL PROFILE
Station I Elev-TW Prop TW Elev-WS Elev-BKF NOTES
2047 86.1 86.1 87.2 97.70
2169 84.92 84.9 86.3 97.72
2279 84.72 84.7 86.01 top pool
2328 84.32 83.6 86.72
2348 83.88 83.3 86.19 96.50
2387 84.2 83.2 86.28 max pool
2420 84.2 83.5 86.16
2454 84.82 83.8 86.1
2478 83.86 84.2 86.09
2505 84.6 84.6 86.09 top riffle
2533 84.1 84.5 85.72
2543 83.06 84.4 86.02
2568 84.62 84.2 85.74
2588 83.63 84.2 85.65 96.61
2609 83.44 84.1 85.69
2687 84.01 84.0 85.61
Longitudinal Profile - Town Fork Creek
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2147 2247 2347 2447

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LEVEL III ANALYSIS
• Summary Sheet
• Bank Hazard Erosion Index
(BEHI)
ANALYSIS OF EXISTING STREAM CONDITION AND DEPARTURE FROM
POTENTIAL (LEVEL III)
Riparian Vegetation
The riparian vegetation in the region upstream of the degraded reach can be classified primarily as
deciduous overstory (RV 9b), which has a deep rooting, soil binding root structure. On both stream banks,
this vegetation consists of a variety of riparian trees such as river birch (Betula nigra), sycamore (Platanus
occidentalis), black walnut (Juglans nigra), and oak (Quercus spp.), as well as an understory and
herbaceous layer of giant cane (Arundinaria gigantea), bladdernut (Staphylea trifolia), silky dogwood
(Corpus amomum), spicebush (Lindera benzoin), and river oats (Chasmanthium latifolium). On the right
side of the degraded reach, looking downstream, the primary vegetation type is perennial grass (RV 4c),
which consists of shallow rooting fescue (Fescue spp.) and is susceptible to erosive forces. This degraded
streambank is unstable due, in part, to the lack of this deep rooting, soil binding vegetation.
Flow Regime
The Lower Town Fork Creek can be classified as a perennial stream with the streamflow dominated
primarily by stormflow. However, the headwaters of Town Fork Creek contain 8 impoundments and
therefore the flow regime can also be classified as regulated. The Level III classification for the flow
regime would therefore be P2/P7.
Size and Stream Order
The bankfull width of the reach upstream from the impacted area is 87 feet. Therefore the stream size
according to Rosgen's Level III classification would be S-7. In the degraded region, the stream width is
approximately 50 ft larger than the reference section taken upstream. Therefore, the degraded reach would
be classified as S-8 due to the larger bankfull width in that region. Lower Town Fork Creek has a
watershed area of 130 square miles.
Depositional Patterns
The depositional pattern of Lower Town Fork Creek in the region above the degraded reach can be
classified as a 132 or as having point bars with few mid channel bars. Within just the short degraded reach,
there is a 230-ft central bar that was caused by debris. This reach could be classified as B7 since the length
of the bar approaches 2-3 times the width of the channel in that region.
Meander Patterns
The meander pattern of Lower Town Fork Creek can be described as irregular meanders (M3). This is
classified as such since the existing meander pattern does not follow a typical sine wave.
Debris and Channel Blockages
The debris blockages can be described as Dominating (D6). These are characterized as occupying over
50% of the active channel cross-section. These extensive debris jams have caused the channel to adjust its
dimensions and therefore stability level as can be seen in the degraded reach.
Stream Channel Stability
The Pfankuch Channel Stability Evaluation was conducted on the degraded reach and converted to a
stability rating for the reach by stream type. There are three possible reach conditions: Good, Fair or Poor.
The degraded reach had a stability rating of `Poor' while the upstream reach fell within the `Fair' category.
Aggradation/Degradation Potential
Lower Town Fork Creek has a substantial amount of debris jams that have caused the bed to aggrade.
Recently, the debris jams that once completely blocked several reaches of the stream were removed. Thus,
this sediment will be placed back into bed load and will eventually move downstream. However, in the
degraded reach there is a massive 230-ft long central bar that will need to be removed.
Streambank Erosion Potential
The Bank Erodibility Hazard Rating Guide can be used to predict the bank erosion potential of a particular
stream reach. The bank height, rooting depth and density, bank angle and the percentage of surface
protection influence the bank erosion potential. There are six different categories of bank erosion potential:
very low, low, moderate, high, very high or extreme. The erosion potential of the degraded reach was very
high while the reach upstream classified as moderate.
LEVEL III: ASSESSMENT OF STREAM CONDITION
AND DEPARTURE (Rosgen, 1996)
Bank Erosion Hazard Index (BEHI)
Reference Riff le/Run
CRITERIA VALUE INDEX
Bank HUBKF Ht 1.1 1.9
Root Depth/BKF Ht 0.8 2.4
Root Density (%) 45.0 4.7
Bank Angle (degrees) 45.0 4.6
Surface Protection (%) 60.0 3.5
Bank Materials Sand 10.0
Stratification n/a
TOTALS 27.1 Moderate
Degraded Reach-Head of Central Bar
CRITERIA VALUE INDEX
Bank HUBKF Ht 1.0 1.0
Root Depth/BKF Ht 0.04 10.0
Root Density (%) 10.0 8.4
Bank Angle (degrees) 73.0 5.2
Surface Protection (%) 20.0 7.2
Bank Materials Sand 10.0
Stratification n/a
TOTALS 41.8 Very High
Degraded Reach-End of Central Bar
CRITERIA VALUE INDEX
Bank HUBKF Ht 1.0 1.0
Root Depth/BKF Ht 0.3 5.9
Root Density (%) 25.0 6.5
Bank Angle (degrees) 62.0 4.1
Surface Protection (%) 20.0 7.2
Bank Materials Sand 10.0
Stratification n/a
TOTALS 34.7 High

uuu

APR 5- 2000
DFM Tn: CORNS AL.TION ID: Ut'?
1
NATIONWIDE PERMIT REQUBSTLU (PROVTOZ M =ONMID6 rERMIT #):
PRE-CONSTRUCTION NOTIFICATION.APPLICATION
._ L++Olt 1zATIC?NWID1: PERMITS TIIAY RTrQLJIRB: • . " .
l6w
=j 110'1'gI iAzz l '1Q TIM ODL? 331032CC32M
a J 'j?f _Tom mZ'.TTQK t4T Q.ATLT'TgLTTm ;f r?q... x ??ar^ d• M4
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"` : sr : COORDIIWI?=C?i ti='1'!t syec Mr DrvzsZOlc OS COAS J?AefA6C ,DlZ * 6 } -
mm TEm oRSGIIdAL (I) COPZ OF TH'8 coe?Rz.acrxa t'CRM TO TM ]?pPiZOPR?ITE
Lr1ELD On== or THS CORPS or zman Em (3EE AZENCZ ADDRESSES. sm= - BEVEN
(7) COPIES SHOULD BE SENT TO THE IT. C. DIVISION OF ENVInONMBNTAL MAUXagMENT
(SEE AGENCY ADDRESSES SHEET) _ N1J6w`.3L 'PRINT.. `
I. OWNERS NAME. S Ta K ?5 Cyu uTca
F
2. HAILING ADDRESS r ?? OX g
SUBDIVISION' NAME:
CITY _ ?A (y hA 2v STATE: it1 C ZIP CODS: a Yd/
LJRUJWA: LUGATIUN A UMUS,. IN"UDING SUBDIVISION NAME (IF DIFFERENT rROM
MAILINC ADDRESS ABOVE)r
d? D TD (.J,y 1-O?d 6 A, 'e?Nc, -?- (f0 v(:t- Ai f y6 Z-2-
3. TMEPHON6 NQMDSR (HOME) :

(WoRx) : 33? -5qi 3 - --? 6q{ )
4« I ABYLTCABLE.* AGENT'S NAME OR RESPONSIBLE C:ORPUkWXl OFFICIAL, ADDRESS,
VRONZ NUMSERr
T lc°N'N? `1tffE C1N?J2. ?5?m? A :S A bogie
S LOCATION or WORE (PRov=c A MAP, PRSr'GRASLY A Coe C or QS33 TOPOWAPHIC
MAP OR AERIAL PHOTOGRAPHY WITH SCALE):
COON=: STn S7 ?_ NEARL37 TOWN OR C= _ LAJA- AX, k

SPECIFIC LOCATION (INCLUDE BOAC

NIII[SERs, LANDMARKS, ETC.) co; D? D Tac??N mod. ® ?? LC1arim
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At W_ -
6. IMPACTEDr OR NEAREST 3TREAM/RIVERs 70 WN ?oQ (L a(tc K -
RIVER BASTW: U A05 A K L,
Tz. IS PROJECT rOCATED NEAR WATER CLASSMED A3 TROUT, TI= 3ALTWATER
(SA), HIGH QUALITY WATERS (HQW),. OUTSTANDING:. AWOURCE WATZ= (ORW)-,s WATER
SUPPLY (WC = OR WS-II)? YES C ] NA ( IF' YES, EXPUMft
7b. 13 TIM PROJECT LOCATED WITHIN A NORTH CAROLINA DIVISTON'OF COASTAL
MANAGEMENT AREA OF' ZMaRONMFNTAL CONCERN (AEC) 7 YES C. I NO KI
7e. ZF THE PROJECT IS LOCATED WITHIN A MASTAL COUNTY (SEE PAGE T FOR
LIST OF COASTAL COUNTIES), WHAT IS THE LAND USE PLAN (LUP) DESICHATION7
8a. H&VE ANY SECTION 404 PERMITS RFEN PREVIOUSLY REQUESTED FOR USE ON
THIS PROPERTY7 YES C I NO SCI IF YES, PROVIDE ACTION I.D. NMIMER OF
PREVIOUa'PERMIT AND ANY ADDITIONAL INFORMATION (IWC_TUDE PHOTOCOPY OF 401
CERTTFTCATION)
8b.. ARE ADDZTIOM PZAMZT REQUESTS EXPECTED FOR THIS PROPERTY INt THlp
FU'TMZ? -YES C I No Zr YES,, DESCRTRF ANTICIPATED WORK-- p
9ft_ TSTI ATED TOTAL MwER Or mm IN THAC.T OF LAND= /24
9b ESTZ>A II• TOTRL NUMBER or M=s or aTrjww Loch= On
wtEr r , _ .. ireet r. ;A to t?,wrM?C?a i s =Y?w.. = x itssa __ 'Ji, _ ;' .! t A'

10a. NUMBER or AcRBS Or mETLANOB IMPACT= DY THE PROPOSED PROTECT BY:
FILLING: EXCAVATION:
Fll
_ Y
FLOODING: OTHER:
DRAINAGE: TOTAL MMES TO DE M===
4 '?'t1C''F' ~ ,, !?L`? , ur +?.- `:YfgpydP`...e a, ``v .. •s yr E? .
t " < " ytyra o- , 3«^"t `' •t.' y ? ??,?ryk?''{.p, - ?+? ?'s?-'u?+??z' F"R?????I?~ ?' +: ?y???w. •X-•. vtt., ? ..
(lr.'STRF.1lZi CHAa1NEL-•TG BE IMPACTED BY THE' PROPOSM,PRO1EC2 CI£
REZOCATED. P1ZovmE DjSrAhrg DOfH DSZOA AM AFTER R=0= =X)
LINGTR RPMRF:- 4410 FT m=:
W== BEFORE (ba.cd an "rural high vatje+r canfrnmq): 38 FT
WIDTH AE=Rs rT
AV22AGS DEPTH BEFORE: L Ar 1lili: /, ? TT
(2) S"'AE_AM CHANNEL IMPACTS WILL RP,.SM,T FROM: (CHECK ALL THAT APPLY)
OPEDT CHANNEL RELOCATION : PLACEMENT OF PZPE: IN CHANNEL :
CHANNEL rACAVATZON. CONSTRUCTION OF A DAM/BLOODING:
OTHER: /I ?DQ 1,2 0 z2eo rn bQ'u e--5
11.. 1Y CONSTRUCZ10N OF A POND IS PROPOSED, WtSA2 IS THE' 32ZE Or THE
WATERSHED DI h==C TO THE POND? NIA
WHAT III THL EXPECTED POND SUREICf ARCH?
I2.. DESCRIPTION O£ PROPOSED WORK INCLUDING D13CU33ZON Or TYZF OF
MECHhNICAL EQUIPMENT TO Sir USED (ATTACK PLANS : 1/2"' X II'I' DRAWINGS
?GI'I7 0U,?1? D .lC s4tu d 6 42 7?L?N ?G
13_ PURPOSE: Or PROPOSW WORK;.

i
14. STATE REMON3 WHY IT I, BELIEVED THAT THIS ACTIVITY MUST AF CARRIED
OUT IN WETLANDS- (INrT-11nF. ANY MEASURES TAKEN TO MINIMIZZ 9PETLAND
IMPACTS):
?K 4
ZIP I
• s ic' Q•,_.? . i ,?.` nr - _ 1Ar -

15.. YOVARZ REQUIRED TO CONTACT THE' ff_S_ FISH ANn WTT.nrTFP SERVICE., f
(IISFWS) AND/OIL.NATXnNAT. MARINE 1'ISHt:1t1E3 SERVICE (NMFS) (3EE AGENCY ,11C n ` •'
ADDRESSES 3HL2Tj REGARDINQ TILE PItE°ENCZ Or ANY MDER3LLY LISTED OR'
PROPOSED FOR LISTITIIG 'ENW- ;FRED OR THREATENED Si-ECIES OR CRITICAL. HABITAT
IN THE Pt:RMlt AREA THAT 'MAY'88_AFFECTED' BY THE PROPOSED PROJECT _ DATE
CONTACTED: (ATTACK RESPONSES
FROM THESE AGENCIES.)
I6_ . YOII ARE THE STArL li19TORIC_PR?P.t RYATSA2,I.OFE'ICLR
(SliW) (SEE AGENCY
appg THE PRrksENcr6 OF PROPERTIES. •-lV-'TM7 BERbaT AR UL- V 1TM MAY BE AFFECTED By i AE °PROP03EDRIC . ? C'? ??, ?
PROJECT.. DATE CONTACXED:
V- DOES THE PROJECT' INVOLVE Air EXpBNDITURE or PUBLIC FMDS OR HE USE OY
PUBLIC (STATE). LANs?
YES NO (Tr NO, rrr TA T8)
a. IF YES, DOES! THE PROJECT REWIRE PREPARATTON OF AN ENVI#UNMENTAL
fA'X-0MENT PURSUANT TO THE. REQUIRl21M. . OE' THE. NORTH CAROLINA ENVIRONMENTAL
POLICY. ACT?
YES LI No
b. IF YES,. HAS' "THE l=UMlrNT BEEN REVIL-KED =ROUGH THE. NORTH CAROLINA
DEPARTMENT OF ADMnrISTltATZ0K STATE: CLMULTNCHOUSE?
YES C]' NO CI:
TX ANSWER TO VU. I3 YES, T=f WBM Z APPROPRZATZ DOCUMENTATION MCC THR
STATE ClZARINGHOVSN TO DIVISION' or UVMWMgENTAr. MANAGEMENT JEAGARDING.
COl?IPLIADTCE WITH THE NO1tTlt CAIiQL j ' POM= ACT
"low
REGARDING.THZ STATIC S.L%r ,
S!i' IiEVIEiIE PROCL.ls SHOULD: SE
DIRSCIEII a20: MS?,CHaYS,.HA?„..DIR?tt° C'T1`3QT1JCSttvTer• vnnmsr?B.,.`?'';
t 9[f' Cry Y.,
• yj .
la. THE FOLLOWING ITMW SHOQLD BR immuDRn WITH THIS APPLICATION IF
PROPOSED ACTIVITY INVATNFS_THE DISCHARGE OF EXCAVATED OR MIX, MATERIAL
INTO WETLANySZ
a_ WETLAND DELIM&N:ION MAP SHOWING ALL WETLANDS;.STREAMS. LAKES
AND PONDS ON.THE PROPERTY.(FOA NATIONWTDE PERMIT NUMBEM 14,'18, 21,. 26,
29, AND 3a) _ AT,.,. STREAMS fINT&JRMITTWZ AND PEM0NBNT) ODT THE: PROPERTY
+N= BE SHOWN ON THE MAP. : MAL' BCZZSS SHOULD BF T INCH EQIIALS b¢ FEHT OR I
INCFt EQUALS,IQG &EET;OR; THEIR .EQQIVALF.'iVr
-b ?'_AVAILAli1.t: REPRESENTATZV2 1!HOTOCRA2 OF WETZAMS TO Br -.?
IMPA = BY PROJECT . s?" : ? r t:': . ,, -
c? IF DET-T"WAS PEREOR IED MCA CONSULTANT,- - INCLUDE ALL DATA
SHEETS' RELEVANL TO THE PLACEMENT OF THE DELINEATION LINE.. s: -_.
d. ATTACH A COPY OF' THE STORMWATER- MANAGEMENT PLAN IF" RcquinED..
G. WHAT IS LAND USE OP SURROUNDING PROPERTY?
E« IF APPLICABLE', WHIT 13 PROPOSED METHOD Of SEWAGS DISPOSAL?
Q. SIGNED AND VATSO AGENT AUTHORIZATION LETTER, IF APPLICABLE.
XOTE: WETLANDS OR WATERS OF THE U.S. MAX NOT HE IMPACTED PRIOR TO:
Z)' ISSUANCE OP' A SECTION 404 CORPS OF ENGINEERS PERMIT,
2)' EITHER THE' ISSUANCE: OR WAIVER Or' A. 401 DIVI8IO1t OF
ENVIRONMENTAL MANAGEMENT (WATER gjALITY) Cc-nTIFIChTION",. AND
3). Cm' Tlr Tii mf= Caw= Cvm= ONLY). ,, A. LETTER. FROM Tug
NORTH CAROLINA. DLVI3ION' Or COASTAL b9XA4 EMENT STATING TUE: PROPOSED
ACTIVZTY IS CONSISTENT WITH TRZ NORTH CAROLINA. COASTAr, bfiVq GASI=NT
pROGR.i1M:. -
0WNER'S/AGENT1'S.:SZdNATUxEi
(AGENT " GNATQRi4
IALID OIST.3F
r1 A?/L1., p. ..
A 44
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Tlf OWNF.f R ? Btr_ Te _
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71 m
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uli!t?. +5 'r

LOWER TOWN FORK CREEK
STREAM RESTORATION PROJECTApR r -nnn

SEQUENCE OF EVENTS
PROJECT SPECIAL PROVISIONS
SUMMARY OF QUANTITIES
TABLE OF CONTENTS
I. CONSTRUCTION SEQUENCE OF EVENTS
II. SPECIAL PROVISIONS
A. GENERAL SPECIFICATIONS
B. CONSTRUCTION SURVEY
C. ACCESS ROADS AND HAUL ROADS
D. GRADING OPERATIONS
E. CONSTRUCTION ACTIVITIES IN STREAM CHANNEL
F. STONE
G. CROSS VANE
H. J-HOOK VANES
1. ROOT WADS
J. COCONUT FIBER (COIR) BLANKET
K. VEGETATION PLANTINGS
L. EROSION CONTROL
M. STREAM CROSSING
N. UTILITY EASEMENTS
0. COOPERATION BETWEEN CONTRACTORS
III. SUMMARY OF QUANTITIES
I. CONSTRUCTION SEQUENCE OF EVENTS
The Contractor is responsible for the following sequence of construction in accordance with the plans and
the following special provisions.
1. Initial Site Preparation
1. Prepare staging area.
2. Prepare stockpile area.
3. Install stream crossing.
4. Stake construction limits.
5. Stake clearing limits.
6. Perform clearing and grubbing activities; salvage trees of basal diameter greater than 10
inches for use as root wads. Stockpile root and trunk sections (if > 12 ft long) removing
branches and disposing of as directed in plan. Excavate flagged live shrubs and trees with
intact rootballs for later transplanting.
7. Remove and dispose of debris from existing stream channel and surrounding project area.
II. Construct proposed stream from Station -SREV- 20+47 to -SREV- 27+43
1. Install temporary stream diversion from head of central bar to right bank
2. Grade right bank from beginning to end of project
3. Construct j-hook/root wad combination structures
4. Remove temporary stream diversion structure and replace from head of central bar to left
bank
5. Remove central bar
6. Grade left bank from beginning to end of project
7. Install cross vane/root wad combination structure
8. Finish grade channel along project length
9. Remove temporary stream diversion.
10. Seed, fertilize and lime stream banks with temporary seeding and permanent seeding.
11. Place coconut fiber blankets and staple.
12. Plant shrub and tree transplants, live stakes, and bareroot shrubs and trees.
II. SPECIAL PROVISIONS
A. General Specifications
There is no subsurface information available for this project. The Contractor shall make his own
investigation of subsurface conditions.
2. Contractor is responsible for clearing and disposing of any fallen trees or other trees that lie within
construction limits in accordance with the plan sheets, as directed by the Supervising Engineer.
3. Contractor is responsible for clearing and disposing of any man-made materials or other debris that lie
within construction limits in accordance with the plan sheets, as directed by the Supervising Engineer.
B. Construction Survey
The construction survey shall be performed in accordance with Section 801 of the 1995 Standard
Specifications and shall include but not be limited to setting the construction baseline, setting thalweg and
any other survey incidental to construction as directed by the Supervising Engineer.
Payment at the contract Lump Sum (LS) price for "Construction Surveying" will be made for providing
all construction layout, surveying, stakeout, and engineering necessary for the proper construction
operations to construct the project in accordance with the lines, grades and dimensions detailed in the
plans, attached cross-sections and provisions.
Payment will be made under
Construction Surveying ........................................ Lump Sum (LS)
C. Access Roads and Haul Roads
Description
Access to the project site shall be limited to the existing access route or to that agreed upon by the
landowner.
A construction entrance shall be established. A stabilized pad of crushed stone shall be located where
traffic will be entering or leaving the construction site. A minimum depth of 6 inches of No. 5 Filter
Stone shall be placed at the entrance to the existing access road on the North side of the property. The
Contractor shall determine if Type 2 filter fabric shall be placed under the stone. Other areas along the
existing access route shall be treated on an as need basis to maintain trafficability. The standard size of
stone shall meet the gradation and any other requirements of Table 1005-1 of the 1995 Standard
Specifications. The entrance shall be wide enough and have a turning radius sufficient enough to provide
coverage for all construction vehicles the Contractor may utilize during the extent of the project. A 30 ft.
turning radius is recommended on either side of the access road. The entrance shall be maintained in a
condition, which will prevent tracking or flowing of sediment onto public streets or existing pavement.
This may require periodic top dressing with additional stone as conditions demand and repair and/or
cleanout of any measures used to trap sediment. Any sediment spilled, dropped, washed or tracked onto
public streets must be removed immediately. When necessary, wheels must be cleaned to remove
sediment prior to entering a public street. When washing is required, it shall be done on an area stabilized
with crushed stone, which drains into an approved sediment basin. Filter fabric shall meet the
requirements of Section 1056 for Type 2 fabric from the 1995 Standard Specifications.
Damage to any existing access road or vegetation shall be repaired to a condition that is at least as good as
the road condition before start of construction, as directed by the Supervising Engineer.
Construction
Construction of the entrance shall meet the requirements as specified on the plan sheets, as directed by the
Supervising Engineer.
Method of Measurement
The quantity of filter fabric to be paid for will be at the contract unit price per square yard as measured
along the surface of the ground.
Payment for installation of stone shall be paid for as outlined under "Stone" below.
Such price and payment will be full compensation for all work covered by this section. This payment
shall be considered full compensation for all labor, equipment, materials and incidentals necessary to
construct and maintain the construction entrance and maintain the access road.
Payment will be made under:
Filter Fabric, Type 2 ............................................ 200 Square Yard (SY)
D. Grading Operations
Description
The Contractor shall perform grading as shown on plan sheets and attached cross-sections. Final grades
prior to final planting operations shall meet the grading plan and cross-sections within a tolerance of ± 0.2
feet (2.4 inches). Stream dimensions shall meet typical cross-sections within a tolerance of ± 0.2 feet
(2.4 inches). Field conditions may dictate necessary adjustments to grading plans. In such cases, the
Supervising Engineer shall indicate adjustments to the Contractor. Adjustments may include, but are not
limited to, spot grading in areas where shrub and tree transplants need to be planted. Grading in these
areas will be on a site-specific basis since each root mass will have different dimensions.
No compaction shall be performed for graded areas unless otherwise specified on plan sheets, these
specifications, or as directed by the Supervising Engineer.
Payment
All work covered by the provision will be paid for at the contract lump sum price for "grading."
Payment will be made under:
Grading ........................................................... Lump Sum (LS)
E. Construction Activities in Stream Channel
Excavation of Material On-Site
Suitable soil material excavated from the stream channel or stream access shall be stockpiled for use in
construction. Any debris or unsuitable soil material removed during excavation shall be removed from the
site and disposed of properly, as directed by the Supervising Engineer. Materials that are in excess of the
needs of the project are to be disposed of by the Contractor. If additional fill material is needed, the
Contractor must supply that material per the direction of the Supervising Engineer.
F. Stone
Description
The work covered by this section consists of furnishing, stockpiling, placing and maintaining an approved
stone to be utilized to construct Cross-Vanes, J-Hook Vanes, Root Wad structures, stream crossings and
for use in other locations as directed by the Supervising Engineer.
Materials
Stone for and "Boulder, Footer and Header" shall consist of blasted granite quarry stone. The stone shall
be sound, tough, dense, resistant to the action of air and water, and suitable in all other respects for the
purpose intended
Stone for "Stone, Class A" "Stone, No.S Filter" and "Boulder" shall consist of blasted granite quarry
stone. The stone shall be sound, tough, dense, resistant to the action of air and water, and suitable in all
other respects for the purpose intended.
All stone shall meet the approval of the Supervising Engineer. While no specific gradation is required, the
various sizes of the stone shall be equally distributed within the required size range. The size of an
individual stone particle will be determined by measuring its long dimension.
Acceptance Criteria for Stone
-REQUIRED STONE SIZES-INCHES
CLASS Minimum Avera a Maximum
A 2 4 6
No.5 Filter 3/8 3/4 1 1/2
Boulder, Min.
48" x 48" x 36"
36
N/A
48
Boulder, Max.
72" x 60" x 48"
48
N/A T
72
No more than 5.0% of the material furnished can be less than neither the minimum size specified nor no
more than 10.0% of the material can exceed the maximum size specified.
Boulders of approximate dimensions between 48" x 48" x 48" (-1.8 cubic yards, -2 Tons) to 72"x 60"x
48" (-4.4 cubic yards, 7 Tons) shall be individually picked from the quarry for use in the Cross-Vanes,
Root Wad structures, and J-Hook Vanes. Boulders shall be relatively flat on either side in the same
dimension, preferably the long dimension.
Construction Methods
The Contractor shall place stone, in locations shown on the plans or as directed by the Engineer, to the
thickness, widths, and lengths as shown on the plans or directed by the Supervising Engineer. All stone
shall be placed to form an erosion control device or an in-stream structure in accordance with the plans
neatly and uniformly with an even surface and shall meet the approval of the Supervising Engineer.
Method of Measurement
The quantity of stone to be paid for will be the actual number of tons or pounds of stone that has been
incorporated into the work, or has been delivered to and stockpiled on the project as directed by the
Supervising Engineer. Stone that has been stockpiled will not be measured a second time. The stone will
be measured by being weighed in trucks on certified platform scales or other certified weighing devices.
Basis of Payment
The quantity of stone measured as provided above, will be paid for at the contract unit price per ton for
"Boulder ", "Stone, Class A" or "Stone, No. 5 Filter". Such price and payment will be full
compensation for all work covered by this section, including but not limited to furnishing, weighing,
stockpiling, rehandling, placing, and maintaining the stone and disposal of any materials not incorporated
into the project if directed by the Supervising Engineer.
Payment will be made under:
Stone, Class A ................................................ 68 Tons
Stone, No.5 Filter ............................................ 55 Tons
Boulder ......................................................... 750 Tons
G. Cross Vane
Description
This structure serves to maintain the integrity of the upstream riffle while promoting scouring in the
downstream pool. The design shape is roughly that of the letter "U" with the apex located on the
upstream side at the foot of the riffle. Header and footer rocks shall be of minimal dimensions of 48" x
48" x 36". Footer rocks are placed in the channel bottom for stability. Header rocks are then placed on
top of these footer rocks in the middle of the channel at approximately the same elevation as those rocks
in the riffle. On either side of the channel, rocks are placed at an angle to the stream bank, gradually
inclining at a 7% slope until they intersect the bank. The structure is tied into the bank with a root wad.
Water flowing downstream is forced over these rocks towards the middle of the channel on either side of
the structure, effectively scouring out a pool below. Rocks placed at the apex hold back streambed
material and prevent it from washing downstream. A cross vane is primarily used for grade control.
Materials
All stone materials shall meet the requirements of Boulder as outlined under "Stone" above. Root wads
shall meet the requirements as outlined under "Root Wads" below.
Installation
A root wad shall be driven into the bank at an angle that is in line with the wing portion of the cross vane
(a 20 to 30 degree angle from the bank). A trench shall be dug in such a manner that the entire footer
rock and a minimum of 2/3 of the header rock is buried beneath the bed surface elevation. Refer to the
Plan Sheets for exact installation guide and locations based on the type of Cross-Vane to be installed. An
excavator, with a bucket that contains a hydraulic thumb, shall be used to place rocks with the supervision
of Supervising Engineer. Footer rocks shall be placed first with header rocks placed on top prior to any
back filling of the trench. Header rocks shall angle from bed elevation at the head of the vane to the bank
at an angle of 7%. Header and footer rocks at both banks shall be tied in securely to a root wad to stabilize
the region of the bank which the cross vane intersects the bank.
Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods.
Method of Measurement
The quantity of boulder and root wads to be paid for will not be measured for payment under this section.
Basis of Payment
Payment for installation of boulders shall be paid for as outlined under "Stone", above. Payment for
installation of root wads shall be paid for as outlined under "Root Wads" below.
This payment shall be considered full compensation for all labor, equipment, materials, and incidentals
necessary to construct the cross vane.
H. J-Hook Vanes
Description
This structure is designed to break up the secondary circulation cells, which cause stress in the near-bank
region. It also forces the thalweg away from the bank towards the middle of the stream channel. Similar
in design to the cross-vane, these structures are placed on the outside of meanders. Footer rocks are
placed on one side of the channel bottom for stability. Header rocks are placed on top of the footer rocks.
The vane slopes upward at a slope of 5% from the center of the channel to the bank. Additional boulders
are placed perpendicular to this structure giving it a "J" shape. The J-Hook Vane helps relieve stress on
the near-bank region and provides fish habitat. A root wad is placed in the bank in combination with the
rock portion of the structure.
Materials
All stone materials shall meet the requirements for boulders as outlined under "Stone" above. Root wads
shall meet the requirements as outlined under "Root Wads" below.
Installation
A root wad shall be driven into the bank at an angle that is in line with the wing portion of the j-hook
vane (a 20 to 30 degree angle from the bank). A trench shall be dug in such a manner that the footer
rocks and a minimum of 2/3 of the header rocks area buried beneath the bed surface elevation in locations
specified on the plan sheets, as directed by the Supervising Engineer. A backhoe, with a bucket that
contains a hydraulic thumb, shall be used to place the boulders. Boulders shall have minimal dimensions
of 48" x 48" x 36". Footer rocks shall be placed first with header rocks placed on top prior to backfilling
the trench. In the center of the channel, the header rocks shall be placed just above the bed elevation,
while the header rocks on the banks shall be placed at the bankfull elevation. Header rocks shall slope of
5% from the bed elevation at the head of the vane to the bankfull elevation. Header and footer rocks at
bank shall be tied in securely to a root wad to stabilize the region of the bank which the j-hook vane
intersects the bank.
Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods
Method of Measurement
The quantity of boulder and root wads to be paid for will not be measured for payment under this section.
Basis of Payment
Payment for installation of boulders shall be paid for as outlined under "Stone", above. Payment for
installation of root wads shall be paid for as outlined under "Root Wads" below.
This payment shall be considered full compensation for all labor, equipment, materials, and incidentals
necessary to construct the J-hook vane.
I. Root Wads
Description
The objectives of these structure placements are to: (1) protect the streambank from erosion; (2) provide
in-stream and overhead cover for fish; (3) provide shade, detritus, terrestrial insect habitat; (4) look
natural, and (5) provide diversity of habitats (Rosgen 1996). In areas along the streambank where there is
no remaining deep rooting vegetation, a footer'log and boulder are placed on the channel bottom and abut
the streambank along an outside meander. This provides support for the root wad and additionally
stability to the bank. A large tree root wad is then placed on the streambank with additional boulders and
rocks on either side for stability. This structure directs flowing water away from the bank and towards the
center of the channel.
Materials
All materials shall meet the approval of the Supervising Engineer. Root-ball shall have a diameter
between 3 and 6 feet. Soil may be removed from the root mass. The tree shall have been alive when
recently removed from the ground. The trunk shall extend 15-20 feet from root-ball and be cut to a point
at the end. Tree basal diameter shall be a minimum of 10 inches. Softwoods such as pine or poplar shall
not be used as root wads.
All boulder materials shall meet the requirements for boulders as outlined under "Stone" above.
Installation
The root wad shall be driven into the bank in the locations directed on the plan sheets, as directed by the
Supervising Engineer. The root mass shall point upstream at an angle that corresponds to the wing portion
of the cross vane or the j-hook vane (a 20 to 30 degree angle to the bank). There shall be no void between
the root mass and the bank on the upstream side of the channel. A boulder shall be placed on the
downstream side between the root mass and the bank to provide erosion control. The boulder shall be
approximately 48" x 48" x 36".
The preferred method for installation is to drive the trunk of the root wad into the streambank using a
excavator that contains a hydraulic thumb. If it is deemed not possible to drive the trunk into the bank, a
trench shall be dug in the bank and the trunk shall be placed in the trench. The trench shall be backfilled
and compacted.
Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods.
Method of Measurement
The quantity of root wads to be paid for will be the actual number of root wads utilized during
construction of the project.
The quantity of boulder to be paid for will not be measured for payment under this section.
Basis of Payment
The quantity of root wads will be paid for at the contract unit price per stem for "Root Wads"
Payment for installation of boulder shall be paid for as outlined under "Stone", above.
Such price and payment will be full compensation for all work covered by this section, including but not
limited to furnishing, weighing, stockpiling, rehandling, placing, and maintaining root wad structure and
disposal of any materials not incorporated into the project if directed by the Supervising Engineer.
Payment will be made under:
Root Wads ....................................................... 8 Stems
J• Coconut Fiber (Coir) Blanket
Description
Furnish materials, install and maintain Coconut Fiber (Coir) Blanket in locations shown on the plans or in
locations as directed by the Supervising Engineer. Work includes providing all materials, excavating and
backfilling, and placing and securing Coconut Fiber Blanket.
Coconut Fiber Blankets will only be used in locations specified by the Supervising Engineer. Locations
will primarily be on streambanks that have little or no vegetation established in the newly constructed
channel. Other problem areas may also require the placement of coconut fiber blankets.
Materials
Mat tin
Provide coconut fiber matting to meet the following specifications:
Th. sical cation,
Material 100% coconut (coir) twine woven into
hi h stren th mat (blanket)
Thickness 0.30 in.
Tensile Stren th 432 x 138 lb/ft.
Elon ation 26% x 32%
Flexibilit 19920 x 16790 m -cm
Flow Velocit Observed 9 ft./sec.
Wei ht 11.8 oz/SY
Size 6.6 x 164 ft (120 s ) or (100 sm
"C" Factor 0.002
O en Area (measured) 65%
Staples
Provide staples made steel wire formed•into a "U" shape not less than 8 in. (20 cm) in length with a throat
of 1 in. (2.5 cm) in width.
Construction
Place the coconut fiber blanket immediately upon final grading. Provide a smooth soil surface free from
stones, clods, or debris that will prevent the contact of the blanket with the soil. Apply fertilizer, seed and
lime prior to installing blankets. Begin at the top of the slope by anchoring the blanket in a 6-inch (15
cm) deep by 6-inch (15 cm) wide trench. Backfill and compact the trench after stapling with 5 evenly
spaced staples. Walking backward down the slope, allow the blanket to unroll slowly; ideally the blanket
roll will rest against your shin as you walk. Staple the blanket according to recommended staple pattern
for specific product and slope. (See staple pattern guide that comes with the product.) Place blankets
loosely and in full contact with the soil. The edges of the parallel blankets must be stapled with
approximately 2 inches (5 cm) of overlap such that the edge of the downstream blanket is under the one
just upstream. When blankets must be spliced down the slope, place blankets end over end (shingle style)
with approximately 6 inches (15 cm) overlap. Staple through overlapped area using 5 staples. Place
staples across the matting at ends, junctions and trenches approximately 1.3 ft (40 cm) apart. Place
staples along the outer edges, down the center of each strip of matting and along all lapped edges
approximately 2 ft (61 cm) apart. Cut excess blanket with scissors and anchor at end of slope.
The Supervising Engineer may require adjustments in the trenching or stapling requirements to fit
individual site conditions.
Measurement
The quantity of coconut fiber blanket measured will be paid for according to the actual number of square
yards measured along the surface of the ground over which the coconut fiber blanket is installed and
accepted by the Supervising Engineer.
Basis of Payment
The quantity of coconut fiber blankets, measured as provided above, will be paid for at the contract unit
price per square yard for "Coconut Fiber (Coir) Blanket". Payment for staples will be included in the
contract unit price for "Coconut Fiber (Coir) Blanket".
Payment will be made under:
Coconut Fiber (Coir) Blanket .................................. 2,780 Square Yards (SY)
K. Vegetation Plantings
SEEDING:
Seedbed Preparation: On sites where equipment can be operated safely, the seedbed shall
be loosened and smoothed by mechanical means such as disking or dragging. On sites where machinery
cannot be used, the seedbed shall be prepared by hand scarifying to provide a roughened surface so that
seed will stay in place.
Fertilization: Evenly distribute fertilizer and limestone over the area by mechanical means or with a
hand held fertilizer spreader. Uniformly mix lime and fertilizer into the top 3 to 4 inches of soil using a
drag or rake. The following rates shall be applied:
Per 1000 sq. ft.
Fertilizer: 18-46-00 ............................................. 12 lbs.
Limestone ......................................................... 100 lbs.
Temporary Seeding
Temporary seeding will be required on all areas disturbed following construction activities where
permanent vegetation cannot be established due to planting season and where temporary ground cover is
needed to allow native or woody vegetation to become established. Temporary seeding shall be in
accordance with Section 1620 of the 1995 Standard Specifications.
The following rates shall be applied:
Per 1000 so. ft.
Japanese Millet (Fall, Winter, Spring Seeding) ............. 1/2 lb.
Winter Wheat (Fall, Winter, Spring Seeding) ............... 1 lb.
Sudangrass (Summer Seeding) ................................ 1 lb.
Browntop Millet (Summer Seeding) ......................... 1 lb.
Method of Measurement
The quantity of temporary seeding, fertilizer and limestone to be paid for will be the actual number of
pounds/tons, which have been temporarily seeded, limed and fertilized.
Basis of Payment
The quantity of temporary seeding, limestone and fertilizer, measured as provided for above, will be paid
for at the contract price of pounds per acre for temporary seeding and fertilizer and tons per acre for
limestone.
Payment will be made under:
Temporary seeding .................................... 150 Pounds
Fertilizer ................................................ 600 Pounds
Limestone ............................................... 2.5 Tons
9
Permanent Seeding
Description
Permanent seeding shall be applied on newly constructed streambanks down to bankfull elevation.
Permanent seeding shall occur in conjunction with temporary seeding and woody vegetation plantings
where applicable
A riparian seed mix at the rate of 1/2 pound per 1000 square feet shall be used for seeding. Spring
planted seeds should be treated with a cold wet chill process to maximize germination. Fall plantings do
not require the chilling process. Seeding should be done evenly over the area using a mechanical or hand
seeder. A drag or hand rake should be used to cover the seed with no more than 1/2 inch of soil. The
following table lists herbaceous, permanent seed mixture labeled "riparian seed mix".
Materials
The following table lists herbaceous, permanent seed mixture labeled "riparian seed mix".
Cbmmom Name -'
T Scientific Name .
r
Rice Cut Grass Leersia o zoides 10
Soft Rush Juncus e sus 5
Deerton e Panicum clandestinum 10
Switch ass Panicum vir atum 10
Giant Cane Arundinaria i antea 5
River Oats Chasmanthium lati olium 10
Three-square Bulrush Scir us americanus 5
Wool grass Scir us cyperinus 5
Virginia Wild rye El macs vir inicus 5
Bottle-brush Grass H strix atula 10
Ho Sedge Carex lac ilina 5
Joe P ye Weed Eu atorium astulosum 5
Virginia Willow Itea vir inica 10
Cardinal Flower Lobelia cardinalis 5
Method of Measurement
The quantity of permanent seeding to be paid for will be the actual number of pounds, which have been
permanently seeded.
Basis of Payment
The quantity of permanent seeding, measured as provided for above, will be paid for at the contract price
of pounds per acre for permanent seeding.
Payment will be made under:
Permanent seeding .................................... 13 Pounds
Live Staking
Live stake materials shall be purchased from a reputable commercial supplier. Live staking plant
materials shall consist of a random assortment of materials selected from the following: Silky Dogwood
(Corpus amomum), Black Willow (Salix nigra), and American Elderberry (Sambucus canadensis).
10
Installation should occur during the dormant season i.e. late fall, winter, if the ground is not frozen, to
early spring before growth begins.
Live stakes shall be 1/2" to 2" in diameter, 2 to 3 feet in length, angled on the bottom and cut flush on the
top, with buds oriented upwards. Live stakes shall be living based on the presence of young buds and
green bark. All side branches shall be cleanly trimmed so the cutting is one single stem. Installation may
be started at any point on the slope face above bankfull elevation as described in the plans. Stakes shall
be installed 2 to 3 feet apart using triangular spacing or at a density of 2 to 4 stakes per square yard. Site
variations may require slightly different spacing. All lateral branches shall be carefully trimmed to avoid
damage to the bark ridge and branch collar. A minimum of two buds (one lateral plus one terminal or two
terminal) shall be above the planting depth. Stakes shall be driven into the ground using a rubber hammer
or by creating a hole and slipping the stake into it. The stakes shall be tamped in at a right angle to the
slope with four-fifths (4/5) of the stake installed BELOW the ground surface. Soil shall be firmly packed
around the hole after installation. Split stakes shall not be installed. Stakes that split during installation
shall be replaced.
The Contractor shall perform the operations provided for in these specifications in a careful, workmanlike
manner that will promote the continued life and healthy growth of all plants in their final location.
Method of Measurement
The quantity of live staking measured and accepted, will be paid for at the contract unit bid price per
square yard, measured along the surface of the ground, for "Live Staking".
Basis of Payment
The quantity of live staking, measured as provided above, will be paid for at the contract unit price per
stake for "Live Staking". The above prices and payments will be considered full compensation for all
work covered by this Section, including, but not limited to, furnishing, installing, and maintaining all live
stakes.
Payments will be made under:
Live Staking ...................................................... 4000 Stems
Bare Root Shrubs and Trees
Bare root vegetation to be planted along both sides of the new channel streambanks above bankfull
elevation shall consist of a random assortment of tree and shrub species including the following: River
Birch (Betula nigra), Green Ash (Fraxinus pennsylvanica), Black Walnut (Juglans nigra), Boxelder
(Acer negundo), Shumard Oak (Quercus shumardii), Sycamore (Platanus occidentalis), Tag Alder (Alnus
serrulata), Persimmon (Diospyros virginiana), and Spicebush (Lindera benzoin).
Installation should occur during the dormant season i.e. late fall, winter, if the ground is not frozen, to
early spring before growth begins. No planting shall be done when the temperature is below 32°F, when
soil to be excavated for the plant hole is frozen, when the sides or bottom of the plant hole are frozen, or
when the soil to be used for backfilling is frozen or too wet.
In digging, loading, transporting, unloading, planting, or otherwise handling plants, the Contractor shall
exercise utmost care and use adequate precautions to prevent injury to or drying out of the trunk,
branches, or roots; and to prevent freezing of the plant roots.
Immediately following delivery to the project, all plants with bare roots, if not promptly planted, shall be
heeled-in in constantly moist soil or sawdust in an acceptable manner corresponding to generally accepted
horticultural practice.
11
While plants with bare roots are being transported to and from heeling-in beds, or are being distributed in
planting beds, or are awaiting planting after distribution, the Contractor shall protect the plants from
drying out by means of wet canvas, burlap, or straw, or by other means acceptable to the Engineer and
appropriate to weather conditions and the length of time the roots will remains out of the ground.
Installation of bare root vegetation shall be located in designated areas along the streambank above and
below bankfull elevation or as directed by the Construction Supervisor. Soil in the area of shrub and tree
planting shall be loosened to a depth of at least 5 inches. This is only necessary on compacted soil. Bare
root plants may be planted in holes made by a mattock, dibble, planting bar, or other suitable means.
Rootstock shall be planted in a vertical position with the root collar approximately 0.5 inches below the
soil surface. The planting trench or hole shall be deep and wide enough to permit roots to spread out and
down without J-rooting. After planting, the soil shall be tamped around the shrub or tree firmly to
eliminate air pockets.
Spacing guidelines of rooted shrubs and trees are provided in the following table.
1',','TYRe ': S p aein
Trees and shrubs (Various assortment) 10 - 15 ft.
Method of Measurement
The quantity of planting measured and accepted, for bare root shrubs will be paid for at the contract unit
bid price per square yard, measured along the surface of the ground, for "Bare Root Shrubs".
The quantity of bare root trees to be paid for will be the actual number of bare root trees utilized during
construction of the project.
Basis of Payment
The quantity of bare root trees, measured as provided above, will be paid for at the contract unit price per
stem for "Bare Root Trees".
The above prices and payments will be considered full compensation for all work covered by this Section,
including, but not limited to, furnishing, stockpiling, installing, and maintaining all bare root shrubs and
trees.
Payments will be made under:
Bare Root Trees ................................................. 250 Stems
L. Erosion Control
Erosion Control
All seeded areas and areas disturbed by construction shall be protected from erosion by installation of
erosion control matting or straw. The area from top of bank to toe of slope shall first be seeded and then
lined and stapled with coconut fiber matting. All other areas shall be seeded and strawed. Staples should
be installed on a 2-foot spacing.
Method of Measurement
The quantity of straw measured and accepted,` for erosion control will be paid for at the contract unit bid
price per square yard, measured along the surface of the ground, for "erosion control". The quantity of
coconut fiber matting will be measured for payment under the "Coconut Fiber Matting" section above.
The quantity of straw to be paid for will be the actual area utilized during construction of the project.
12
Basis of Payment
The quantity of matting and straw, measured as provided above, will be paid for at the contract unit price
per square yard. Payment for installation of Coconut Fiber Matting shall be paid for as outlined under
"Coconut Fiber Matting", above.
The above prices and payments will be considered full compensation for all work covered by this Section,
including, but not limited to, furnishing, stockpiling, and installing matting and straw.
Payments will be made under:
Straw ....................... .. 2,780 Square Yards (SY)
M. Stream Crossing
Description
This structure will serve as a means of crossing the existing and proposed stream to allow access via the
North side of the existing stream. The stream crossing will be placed in the location to be determined by
the Contractor.
Construction
A stream crossing shall be constructed to the dimensions listed on the plan sheets. Grading shall be
performed to form a ramp that will connect the stream bank grade to the streambed on the North side of
the stream. The Contractor shall determine an appropriate ramp angle for the stream crossing according
to the equipment that will be utilizing the crossing. A layer of Type 2 filter fabric followed by a 6 inch
base of Class A stone shall be placed on top of the ramp portion of the stream crossing.
Method of Measurement
The quantity of stone, Class A to be paid for will not be measured for payment under this section.
The quantity of Type 2 filter fabric will be paid for at the contract unit price per square yard of material
used in the construction of stream crossings.
Basis of Payment
Payment for installation of stone, Class A shall be paid for as outlined under "Stone, Class A".
Payment for installation of filter fabric will be paid for at the contract unit price per square yard for Filter
Fabric, Type 2.
Payment will be made under:
Filter Fabric, Type 2 .......................................... 200 Square Yards (SY)
N. Utility Easements
The best available information for the location, size, and type of material for all existing utilities shall be
shown on the plans. The Contractor will be responsible for making investigations for determining the
exact location, size, and type material of the existing facilities necessary for the construction of the
proposed utilities and to avoid damage to existing facilities. Any damages incurred to existing facilities
are the responsibility of the Contractor and shall be repaired to the original or better condition at no
additional cost to the contract amount.
13
O. Cooperation Between Contractors
In accordance with Section 105-7 of the Standard Specifications, the Department reserves the right at any
time to contract for and perform other or additional work on or near the work covered by the contract.
When separate or additional contracts are let within the limits of any one project, each Contractor shall
conduct his work so as not to interfere with or hinder the progress or completion of the work being
performed by other Contractors. Contractors working within the limits of the same project shall
cooperate with each other.
Each Contractor shall conduct his operations in such a manner as to avoid damaging any work being
performed by others or which others have completed.
When a project is let under more than one contract and the plans and/or special provisions include a
construction schedule, it shall be the responsibility of the Contractor to complete the various phases of the
project in accordance with the time limits specified such that the total contracts will be completed by the
completion date. This construction schedule will remain in effect until such time as the Contractors at
their option submit to the engineer a joint construction schedule meeting the approval of the Supervising
Engineer. This joint construction schedule shall be signed by authorized representatives of each firm and
upon the approval of the Engineer shall be binding on each Contractor and made a part of the contract
documents. Subsequent modifications to the joint construction schedule may be made during the course
of the work in the same manner.
Failure of the Contractor(s) to complete the various phases of work within the time limits set forth in the
construction schedule or latest approved joint construction schedule shall be just cause for removing the
Contractor(s) from the Department's list of qualified bidders. A Contractor disqualified from bidding by
reason of this provision will not be reinstated until such time as his progress is in accordance with the
latest approved construction schedule or until the project is completed and accepted, whichever occurs
first.
The Department will under no circumstances be liable for any claim for additional compensation due to
acts of one Contractor holding up the work of another.
The Department will under no circumstances be liable for any damages experienced by one Contractor as
a result of the presence and operations of other Contractors working within the limits of the same project.
14
III. SUMMARY OF QUANTITIES
DESC. SECT. * QUANTITY UNIT ITEM DESCRIPTION
2 801 LS CONSTRUCTION SURVEY
5 200 1.1 Acre CLEARING AND GRUBBING
SP 55 Tons STONE, NO. 5 FILTER
SP 68 Tons STONE, CLASS A
SP 750 Tons BOULDER
SP 8 Stems ROOT WADS
33 868 400 SY FILTER FABRIC, TYPE 2
SP 2780 SY COCONUT FIBER BLANKET
1068 1620 150 LB SEED FOR TEMPORARY SEEDING
1069 1620 600 LB FERTILIZER FOR TEMPORARY
SEEDING
1060 2.5 Ton LIMESTONE FOR TEMPORARY
SEEDING
SP 13 LB SEED FOR PERMANENT SEEDING
SP 4000 Stems LIVE STAKING
SP 250 Stems SHRUB AND TREE TRANSPLANTS
16 SP LS GRADING
SP 70 FT TEMPORARY STREAM DIVERSION
SP 2780 SY STRAW FOR EROSION CONTROL
LS MOBILIZATION
*Reference: North Carolina Department of Transportation (NCDOT) Standard Specifications for Roads
and Structures. July 1995. "English"
1 15
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State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
NTW'A
'if 0 0
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NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
May 19, 2000
Stokes County
DWQ Project # 000619
APPROVAL, of 401 Water Quality Certification
Stokes County
c/o Kenneth Martin, Jr.
PO Box 89
Danbury, NC 27016
Dear Sirs:
You have our approval, in accordance with the attached conditions and those listed below, to restore 700 feet of Lower
7 own Fork Creek in Stokes County, as you described in your application received by the Division of Water Quality on April 25,
2000. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification
Number 3109. This certification allows you to use Nationwide Permit Number 27 when the Corps of Engineers issues it. In
addition, you should get any other federal, state or local permits before you go ahead with your project including (but not
limited to) Sediment and Erosion Control, Coastal Stormwater, Non-Discharge and Water Supply Water shed regulations.
This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General
Certification.
This approval is only valid for the purpose and design that you described in your application. If you change your
project, you must notify us and you may be required to send us a new application. If the property is sold, the new owner must
be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total
wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in
15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached
certification.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act
within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter
150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611-
7447. This certification and its conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you
have any questions, please telephone John Dorney at 919-733-9646.
Rve
ns
achment
Att
cc: Corps of Engineers Raleigh Field Office
Winston-Salem DWQ Regional Office
File Copy
Central Files 000619
Division of Water Quality • Non-Discharge Branch
1621 Mail Service Center, Raleigh, NC 27699-1621 Telephone [phone] FAX # [phone]
An Equal Opportunity Affirmative Action Employer • 50% recycled/10% post consumer paper
http://h2o.enr.state.nc.us/wetlandc.htmI

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APR F 2000
INFEANDS GRO.
LOWER TOWN FORK'CREEK
STREAM RESTORATION PLAN
Stokes County, North Carolina
December 1999
Prepared For:
Stokes County Soil and Water Conservation
District
Prepared By:
E A R T H `_ T E C H
701 Corporate Center Drive, Suite 475
Raleigh, North Carolina 27606
PRESENT CONDITION
Lower Town Fork Creek has been surveyed using geomorphologic techniques to
determine it's present condition. The longitudinal profile was surveyed for a length of
2,750 feet in order to determine the spacing, slopes and lengths of channel features. The
existing pool to pool spacing is 730 feet and 550 feet within the reach surveyed. The
length of the reference pool is 140 feet and the degraded pool had a length of 190 feet.
Two reference (one pool and one riffle/run) cross sections were surveyed to determine a
stable channel dimension. Two degraded (one pool and one run) cross sections were
surveyed to determine the degree of departure from stability. A full Rosgen Level III
assessment was completed to determine the present condition of the stream and its
departure from potential. The data and corresponding analysis can be found in the
following sections.
The degraded reach is located at a meander bend with no deep rooting vegetation on the
top of the bank. The outside of the meander is severely eroding. The channel is widening
and a central bar has formed in the channel. Large amounts of flood debris often
accumulate in this region.
RESTORATION/STABILIZATION TECHNIQUES
A combination of structural and biological techniques will be used to restore this reach to
stability. Two j-hook vanes will be utilized to lower the shear stress in the near bank
region by directing the velocity vectors away from the bank. A cross vane will be
installed to maintain channel grade, direct flows toward the center of the channel, and
provide a stable area for a future stream crossing installation.
A mixture of riparian grasses and woody vegetation plantings will be used to provide a
deep root mass to stabilize the stream banks and flood plain. Specifications can be found
in the Project Special Provisions section of this document.
EXISTING CONDITIONS
• Longitudinal Profile
• Riffle/Run Cross Section
• Pool Cross Section
• Pebble Count
Ldngitudinal Profile
Survey Date: November 24, 1999
Surrey Party: K. Hall, D. Clinton
D. Clinton - Rod
Karen Hall - Recorder
TBM - Elevation (ft) 100
Sinuosity: 1.2-1.4
Drainage Area (sq. mi.): 130
BKF- ELEV- ELEV-
STATION I HI FS-TW FS=WS upper ELEV-TW WS BKF up NOTES
1000 POWER LINE
1179 Reference Riffle/Run Cross Section
1642 Reference Pool Cross Section
1754 Debris Jam
2047 Start of Project (sycamore tree on left bank just above degraded secti on)
2047 100 13.9 12.8 2.3 86.1 87.2 97.7
2169 100 15.08 13.7 2.28 84.9 86.3 97.7
2279 100 15.28 13.99 84.7 86.0 Start of split channel
2328 100 15.68 13.28 84.3 86.7 Right channel
2348 100 16.12 13.81 3.5 83.9 86.2 96.5
2387 100 15.8 13.72 84.2 86.3
2420 100 15.8 13.84 84.2 86.2
2454 100 15.18 13.9 84.8 86.1
2478 100 16.14 13.91 83.9 86.1
2505 100 15.4 13.91 84.6 86.1 End of split channel
2533 100 15.9 14.28 84.1 85.7
2543 100 16.94 13.98 83.1 86.0
2568 100 15.38 14.26 84.6 85.7
2588 102.33 18.7 16.68 5.72 83.6 85.7 96.6 X-sect #2 in degraded reach
2609 100 16.56 14.31 83.4 85.7
2687 102.33 18.32 16.72 84.0 85.6
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PEBBLE COUNT
Site: TOWN FORK Date: 11/24/99
Pa : Karen Hall, Dan Clinton Reach: Reference station 11+79
Particle Counts
Inches Particle
+- Millimeter Rt. Bank Channel Lft. Bank Total No. Item -% % Cumulative
Silt/Clay < 0.062 S/C 6 6 14 26 26% 26%
Very Fine .062-.125 S 6 2 5 13 13% 39%
Fine .125-.25 A 4 3 0 7 7% 46%
Medium .25-.50 N 4 6 0 10 10% 56%
Coarse .50-1.0 D 0 12 1 13 13% 69%
.04-.08 Very Coarse 1.0-2.0 S 0 16 0 16 16% 85%
.08-.16 Very Fine 2.0-4.0 0 11 0 11 11% 96%
.16-.22 Fine 4.0-5.7 G 0 3 0 3 3% 99%
.22-.31 Fine 5.7-8.0 R 0 1 0 1 1% 100%
.31-.44 Medium 8.0-11.3 A 0 0 0 0 0% 100%
.44-.63 Medium 11.3-16.0 V 0 0 0 0 0% 100%
.63-.89 Coarse 16.0-22.6 E 0 0- 0 0 0% 100%
.89-1.26 Coarse 22.6-32.0 L 0 0 0 0 0% 100%
1.26 - 1.77 Very Coarse 32.0-45.0 S 0 0 0 0 0% 100%
1.77 - 2.5 Very Coarse 45.0-64.0 0 0 0 0 0% 100%
2.5-3.5 Small 64 - 90 C 0 0 0 0 0% 100%
3.5-5.0 Small 90 - 128 0 0 0 0 0 0% 100%
5.0-7.1 Large 128 - 180 B 0 0 0 0 0% 100%
7.1 -10.1 Large 180 - 256 L 0 0 0 0 0% 100%
10.1 -14.3 Small 256 - 362 B 0 0 0 0 0% 100%
14.3 - 20 Small 362 - 512 L 0 0 0 0 0% 100%
20 - 40 Medium 512 - 1024 D 0 0 0 0 0% 100%
40 - 80 Lr - Very Lr 1024 - 2048 R 0 0 0 0 0% 100%
Bedrock BDRK 0 0 0 0 0% 100%
Totals 20 60 20 100 100% 100%
Particle Size Distribution
Reference Station 11+79
100%
90% -------- ---------------
j 80% -------- ----------- ---------------------------------------------
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0
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Particle Size - Millimeter
PROPOSED CONDITIONS
• Longitudinal Profile
• Riffle Cross Section
• Pool Cross Section
• Run Cross Section
• Glide Cross Section
PROPOSED LONGITUDINAL PROFILE
Station I Elev-TW Prop TW Elev-WS Elev-BKF NOTES
2047 86.1 86.1 87.2 97.70
2169 84.92 84.9 86.3 97.72
2279 84.72 84.7 86.01 top pool
2328 84.32 83.6 86.72
2348 83.88 83.3 86.19 96.50
2387 84.2 83.2 86.28 max pool
2420 84.2 83.5 86.16
2454 84.82 83.8 86.1
2478 83.86 84.2 86.09
2505 84.6 84.6 86.09 top riffle
2533 84.1 84.5 85.72
2543 83.06 84.4 86.02
2568 84.62 84.2 85.74
2588 83.63 84.2 85.65 96.61
2609 83.44 84.1 85.69
2687 84.01 84.0 85.61
Longitudinal Profile - Town Fork Creek
100
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Bankfull/ Top of Bank
Water surface
Existing Thalweg
Proposed Thalweg
2047 2147 2247 2347 2447 2547 2647
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LEVEL III ANALYSIS
• Summary Sheet
• Bank Hazard Erosion Index
(BEHI)
ANALYSIS OF EXISTING STREAM CONDITION AND DEPARTURE FROM
POTENTIAL (LEVEL III)
Riparian Vegetation
The riparian vegetation in the region upstream of the degraded reach can be classified primarily as
deciduous overstory (RV 9b), which has a deep rooting, soil binding root structure. On both stream banks,
this vegetation consists of a variety of riparian trees such as river birch (Betula nigra), sycamore (Platanus
occidentalis), black walnut (Juglans nigra), and oak (Quercus spp.), as well as an understory and
herbaceous layer of giant cane (Arundinaria gigantea), bladdernut (Staphylea trifolia), silky dogwood
(Cornus amomum), spicebush (Lindera benzoin), and river oats (Chasmanthium latifolium). On the right
side of the degraded reach, looking downstream, the primary vegetation type is perennial grass (RV 4c),
which consists of shallow rooting fescue (Fescue spp.) and is susceptible to erosive forces. This degraded
streambank is unstable due, in part, to the lack of this deep rooting, soil binding vegetation.
Flow Regime
The Lower Town Fork Creek can be classified as a perennial stream with the streamflow dominated
primarily by stormflow. However, the headwaters of Town Fork Creek contain 8 impoundments and
therefore the flow regime can also be classified as regulated. The Level III classification for the flow
regime would therefore be P2/P7.
Size and Stream Order
The bankfull width of the reach upstream from the impacted area is 87 feet. Therefore the stream size
according to Rosgen's Level III classification would be S-7. In the degraded region, the stream width is
approximately 50 ft larger than the reference section taken upstream. Therefore, the degraded reach would
be classified as S-8 due to the larger bankfull width in that region. Lower Town Fork Creek has a
watershed area of 130 square miles.
Depositional Patterns
The depositional pattern of Lower Town Fork Creek in the region above the degraded reach can be
classified as a B2 or as having point bars with few mid channel bars. Within just the short degraded reach,
there is a 230-ft central bar that was caused by debris. This reach could be classified as B7 since the length
of the bar approaches 2-3 times the width of the channel in that region.
Meander Patterns
The meander pattern of Lower Town Fork Creek can be described as irregular meanders (M3). This is
classified as such since the existing meander pattern does not follow a typical sine wave.
Debris and Channel Blockages
The debris blockages can be described as Dominating (D6). These are characterized as occupying over
50% of the active channel cross-section. These extensive debris jams have caused the channel to adjust its
dimensions and therefore stability level as can be seen in the degraded reach.
Stream Channel Stability
The Pfankuch Channel Stability Evaluation was conducted on the degraded reach and converted to a
stability rating for the reach by stream type. There are three possible reach conditions: Good, Fair or Poor.
The degraded reach had a stability rating of `Poor' while the upstream reach fell within the `Fair' category.
Aggradation/Degradation Potential
Lower Town Fork Creek has a substantial amount of debris jams that have caused the bed to aggrade.
Recently, the debris jams that once completely blocked several reaches of the stream were removed. Thus,
this sediment will be placed back into bed load and will eventually move downstream. However, in the
degraded reach there is a massive 230-ft long central bar that will need to be removed.
Streambank Erosion Potential
The Bank Erodibility Hazard Rating Guide can be used to predict the bank erosion potential of a particular
stream reach. The bank height, rooting depth and density, bank angle and the percentage of surface
protection influence the bank erosion potential. There are six different categories of bank erosion potential:
very low, low, moderate, high, very high or extreme. The erosion potential of the degraded reach was very
high while the reach upstream classified as moderate.
LEVEL III: ASSESSMENT OF STREAM CONDITION
AND DEPARTURE (Rosgen, 1996)
Bank Erosion Hazard Index (BEHI)
Reference Riff le/Run
CRITERIA VALUE INDEX
Bank HUBKF Ht 1.1 1.9
Root Depth/BKF Ht 0.8 2.4
Root Density (%) 45.0 4.7
Bank Angle (degrees) 45.0 4.6
Surface Protection (%) 60.0 3.5
Bank Materials Sand 10.0
Stratification n/a
TOTALS 27.1 Moderate
Degraded Reach-Head of Central Bar
CRITERIA VALUE INDEX
Bank HUBKF Ht 1.0 1.0
Root Depth/BKF Ht 0.04 10.0
Root Density (%) 10.0 8.4
Bank Angle (degrees) 73.0 5.2
Surface Protection (%) 20.0 7.2
Bank Materials Sand 10.0
Stratification n/a
TOTALS 41.8 Very High
Degraded Reach-End of Central Bar
CRITERIA VALUE INDEX
Bank HUBKF Ht 1.0 1.0
Root Depth/BKF Ht 0.3 5.9
Root Density (%) 25.0 6.5
Bank Angle (degrees) 62.0 4.1
Surface Protection (%) 20.0 7.2
Bank Materials Sand 10.0
Stratification n/a
TOTALS 34.7 High

® VV

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APR 5- 2000
DRM TD: CORNS ACTION ID: UP
H
NATIONWIDE PERMIT REQUESTED (PROVSDC NRTSONWTDC tERMI2• M):
PRE-CONSTRUCTION NOTIFICATION.APPLICATION
pm NATI10t IDLE' nm-aTS TUAT =QUIRE :
s= Tk_?za sg oomtts or
s?aneaRs
o. g w ?Z)1. It= vZcTT!lIL?SOT Cf6ATTFTL?TIQIii > «'?M ? '";?. A?. "•, r ti f , '?
'?` } sY CflOaiDZ?ITZ1CW w= =ty me Dzv==N" or ca"ChL MKKAZZM=
mm TEM ORSGIIIAL Am cif COPY OF TMB ooaWLXT= kMM TO TEM APPPDPRZA=
FULD• O£FIC& Off' THE CORES Olr EN0Ii78ER3 (3EE AoENC7r A1o =sms 31=W ? 3F•VEN
(7) COPIES SHOULD BE: SENT TO THE N.C. DIVISION OF ENVIAONMBNTAL MANAGEMENT
(SEE AGENCY ADDRESSES SHEET) `P INT.
I OWNERS NAME. S Td 4-? ?S Ckau k3 T14
Z. MAILING ADDAEESr- 199
SIIDDMSION NAME:
CITTt ?A Q (QA 214 STATE: Aj C zip Com. a YO/(
PRUJI=Z LUC XX;LON AL VKb3S. 1N"UDING 30301V'ISION NAME (IF DIFFERENT FROM
HAILING ADDAII88 ABOVE):
dL TDcy,(j ?d G()a"!NG f CO VC ti If -2 y? z
3. TELEPHONE NCMBER (HCME) : (WORK) 33? -Sgt - a8
4. LY A lJL1'CABL& AGENT`S NAME OR RESPONSIBLE C•0KV0kWZ OFFICIAL, ADmss,
vHO2m N[TMSEar
1'leNw? ?2 N,Se. 5Arft AS A 60t)
S LOCATION Or WORK (PROVIDE A MAB, PREFERABLY A COSY Or 0933 TOPOGVJWHIC
MAP OR AERIAL PHOTOGRAPHY WITH SCALE)"-
COUNTY- ST/1 GS __ NEAREST TOWN OR CITY- tAJ?ZC?4 1 L',QV?•

r

SPECIFIC LOCATION (INCLUDE ROAD

NZ1 MXRS, LANDMARKS, ETC-):
D? D Toc,?N mod. ® CcJ? LL??m rr>:2??s I#AJ d
T(A) N ei ceem A:::L
Z:, r
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'4 J .: '31.4. rl, { '.? r Y ? 4 J. ?? d.LT\ ?Y Z• ?GS.y_' .y: - -
6 IMPACTED OR NEAREST STREAM/1tIVERr
RIVER BASTN z U A eJ 6 A? L°
7a. IS pROJECT LOCATED NEAR WATER CLASSIr1YM AS TROUT, r== 3ALTWA=R
(SA), HIGH QUALITY WATERS (HQW), OUTSTANDING-. pZ_00URCE WATZAZ (ORWl v WATER
SUPPLY (WE t OR Ws-II) ? YES [ j NO [ IF YES, EXPLP-Wi
7b. IS THE PROJECZ LOCATED WIT111W A NORTH CAROLINA DIVISMW OF COASTAL
MANAGEMENT AREA Or ENVIRONMENTAL CONCERN (AEC) 7 YES NO nI.
7c. IF THE MOJECT IS LOCATED WITHIN A P.AASTAL COUNTY (SEEPAG4 7 FOR
LIST OF COASTAL COUNTIES), WHAT III THE LAND USE PLAN (LUP) DESIGNATION?
8a. HAVE ANY SECTICW 404 PERMITS RFEN PREVIOUSLY REQUESTED E'OR USE ODT
THIS PROPERTY? T= C I NO V] I£ YES,. PROVIDE ACTION I.D.. NUMBER OF
PREVIOUa*PERMIT AND ANY ADDITIONAL INFORMATION (INCTUDE PHOTOCOPY OF 401
CERTTFTCATION)
815.. ARE ADDT.=Cg= PERMZT REQMTS EXPECTED FOR THIS PROPERTY IDr THE
FQTURI'r? YES Zr YES„ DESCRTAR ANTICIPATED WORK:
9jk_ IF.STIIO?TED- TOTlL NUMBER OLP AM= IN TbUlCT' OF ZMD:.
9b- r?s'1'Z ULTZM TCT]LZ NUMBER. OF ACRES Or n"=ANDS Lt7CATt g OW PRO 9=:
gig
. ti? '##S h '"r. .' ? .'. f,;;: ??? .,a "'?, ?.'-',? t-iPJ (rJr"•y+L't.?'f
/J
?'7,•.' P„ dn? L.:}? rw Y r ?w?M1OV ? _ ? ,req...'.
dk.. .. ?t.?Vi???.fr 1t{?>> af?;t JrtS o:' s 'ter. r 4?M9S; t:.r ?N„?i ?.? y;,.,?C-. FS?Fp• r ??p ?
Y APtk
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hwr? ' 7 ? C .;?* ?c'.,,t tk ??{ y f? ??' ?•} fir., ?t? •' ?. y.,. sra f?.: i.F +^-.' Mw
10a. MMBER Ot ACRES OF WETLANDS IMPACTED BY THE rROPOSED PROJECT BY--
FILLING: EXCAVATION:

i Y? `nc
l

HOODING: OTHER:
DRAINAGE TOTALa ACRES To DS +ZbCACTED -
.rtf,f t;r'?!tt'bi•y."?5'.•ot.L "-A!IF'•}i`?F...''••i'Z°?rJ?e+,'i?i•a '4r--;n':+%-r?T1.,Qlit',.,.f". ?+fy''6.r,•.a+r-'r"KE.-.:?. ..`
t'?.y7?4 1.Mra V•? 4":47 tikb; y
.?Ji?.\5?.n?+??...??,`?[-?i?Z?'c:±
" 10b (1): STRZhK CHANNEL,-To BE: IMP7cTw- BY THE PROP03Ea",PROIECT CIS
RELOCATED, pROVXDLr D1sI'Ah%W Dori asroRL AND AFTER xCTaCCAITOM
LI NGTit RFFARP: 40 0 FT AfTER.- I
WZD= BErCRE (ba ed on normal high vate+r mantmirs) r 3 S FT
WIDTS AFTER: .238
16VE2MM DEPTB BEFORE: _ ?, k? AtiHlt. /rD FT
(2) STAEAM G n EL IMP CTS WILL RF43111"t FROM: (CHFCX ALL THAT" APPLY)
OPEN CIIANNEIL ALLOCATION : PLACIXIMT OF PIPE: IN CHANNEL :
CI URM rACAVATION: 1C CONETILOCTION OF A DAMMOODING:
OTHER:
11_ 1Y CUNSTRUC910N Of li POND 13 PROPOSED, WHAT IS THE 32ZE Or THE
WATERSHED DDAININC TO THE POND? N/A
WHAT I3 THE MCBECTED POND SURFACE AREA?
IZ- DESCRIPTION O£' PROPOSED WORK INCLUDING DISCU33ZON Or Tyra OF
MM'ryE?C.J'W?tICAL mnmENw TO" SIr us&D (ATTACH" PLANS: 8' 112- X 11- DRAWINGS
ecmOU,a? o'..? SAru d 6X12 ?c u .AGO/ate 6cJi^4/1V- No i'e-?' o F bo 0- 6
4-h

13- PURPOSE or PROPOSED WORXZ
1

s
14. STATE RSASON3 WHY IT IS BELIEVED THAT THIS ACTIVITY MUST RF CARRIED
OUT IN WETLANDS. (INCT,nnF ANY MEASURES TAKEN TO MINIMIZE NeTLAND
IMPACTS )
_ .. ,"fir ,... .. L. ?.'.. n^' _..
13 YOVARE''. REQUIRED TO CONTACT THN U'_S_ FISH ANn WTT-MTFF SERVICE.,
(USFWS) AND/OR..NATTONAL MARINE FISHt1UZ3 SERVICE'. (NMFS) (3EE AGENCY
ADDRESSES 3HEET) REGARDINQ Tim pZLESEN= o ANY FW PItALLY' LISTED AR
PROPOSED FOR LISTINZ 'IIdD7+ rrRED OR, THREATENED SeECIES OR CRITICAL. KADITAT
IN THE Yt:KMJ:t AREA THAT - AY'Dr AFFECTLR BY THE PROPOSED PROJECT. DATE
CONTACTED:. _ (ATTACH RESPONSES
FROM THESE AGENCIES.)
I6_ .YOU AItEQ( , , THE 'STArt: ti13TORIC PRIP-45 ?'Qcr
MUM (SEE AGENCY AQDREA3F3-X=T)-.RLGARDINQ THE PR$SENC£ OF HISTORIC
rROPERTIES. IV-TM PERDLIT AML, VHTrg WAY BE AFFECTED BY AE "PROPOSED ? r ?I ?J+ ?
PROJECT.. DATE CONTAcxED: •-
I,T- DOES THE PROJECT' INVOLVE 11N EXPEDIDITURE OS PUBLIC FMDS OR HE USE OF
PUBLIC (STATE). LA"?
YES NO [T (IF NO, w TO 78)
a. IF YES,_ DOES THE PROJECT REQUIEM PREPARATTON OF AN ENV1#1vwgENTAZ
DOCUMENm PURSUANT TO THE REQUIRYXW. 3- OE' THE. NORTH CAROLINA ENVIRONMENTAL
POLICY ACT?
YES [j NO -
b. IT. YES,. Hu THE L=um ANT BEEN REVIZK= THROUGH THE. NORTH CAROLINA
DEPARTMENT OF ADMINISTRATION STATE: CLT2UtINGHOU3E? .
YES rr ?O 0.
IX ANS1MR Ta Vb. 13 YES,. THM 3UBMIr APPROPRZATE. DOCUMENTATION. FACti. THE
STATE CLEARINGHOUSE To DIVISZON• or ENvjRONNENTAr. MANAGEKMM REGARDING.
COMPLIANCE Nrm THE NORTlt, CAROIALIM =V Tarl ` POLICX ACT'
low
QQFr4TI0[JS REGARDIDIG .THE STATLr MEXRnmazZ Ravr" PROCL33 3HOULa w :..
.;?tD PTO- MS_CI38YS 8A ' nrR?9Yfer.°,+i! nrrser?rr•sanr.n.. :....ate cK+ .

18. THE FOLLOWING ITMW' SHOULD BE 3:ucLonrn WITH THIS APPLICATIola IF
PROPOSED ACTIVITY INVAT.VFS_THE D1SCMARGS OF EXCAVATED OR LIZL MATERIAL
INTO WETLAN1S
a- -WETLAND DELlNtW:ION MAP SHOWING ALL WETLANDS;. STREAMS, LAKES
AND PONDS ON THE PROPERTY. (rOR NATIONWTDE PERMIT NUM}SEM 14,. 18, 21,. 26,
29, AND 39) _ AT.T.. STREAMS PINT RMITTENI• AND PERMANENT) ODt_ TIME PROPERTY
BHT BE SHOWN ON' THE MAP. MAD SCALES SHOULD BF, T THCH EQUALS b¢ r r OR Y
INCH EQUALS 10a nET , OR THEIR . EQUIVALt.IVT... w % •,?3 „
b IE.AVAILAFILt:.?REPESSENTATZvL FHOTOGRA2K OF WETrJWW TO SF, .Y?
-- : ;
IMPACTED: , HY
c? IF• DET-TWFATZON WAS YBRIVRMLD nY• X CON3ULTANTr' INCLBDa ALL Max
ASHEETS' RELEVANT TO THE PLACEMENT OF THE DELINFATION LINE.:
d.- ATTACH A. COPY O' THE STORMMATER' MWAGEM T PLAN IF' REQUIRED-
t- WHAT IS LAND USE OF SURROUNDING PROVERTY7
g. IF APPLICABLE', WH= IS PROPOSED METHOD OF SEWAGL DISPOSAL?
Q. SIGNED AND DATk;t7 AGENT AUTHORIZATION LETTER, ZP ADPLICASLE.
NOTE: WETLl• MS OR WATERS OF THE U.S. MAY NOT BE AKPAGTED PRIOR TO:
t)' ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT,
Z) EITHER THE ISSUANCZ OIL WAIVER Or A 401 DIVISION OF
ENVIRONMENTAL MANAGSIZNT (WATER QUALITY) CERTIFICATION,. 'AND
3) C= T= VIM= C17"= C.=XTI$',..- MY) r A IXTTER. FROM Tta
NORTH chROLIIm DLVI3IOPf Or COASTAL ZfANAQt.MENT- STATING TIC. PROPOSED
ACTIVITY IS CONSISTENT WITH THR NORTFT CAROLINA. COASTAL. b9QtAGSI=M
PROGRAM:
eX7
owrrER?VAGErrr 1s s
(AGENT"S:«SZGNATQREr;-ZiA= xOAit.Y
`?_ >Tk OW F R Effisffnmi
C f DATLE
LOWER TOWN FORK CREEK
STREAM RESTORATION PROJECTApR 27,03

SEQUENCE OF EVENTS
PROJECT SPECIAL PROVISIONS
SUMMARY OF QUANTITIES
TABLE OF CONTENTS
I. CONSTRUCTION SEQUENCE OF EVENTS
II. SPECIAL PROVISIONS
A. GENERAL SPECIFICATIONS
B. CONSTRUCTION SURVEY
C. ACCESS ROADS AND HAUL ROADS
D. GRADING OPERATIONS
E. CONSTRUCTION ACTIVITIES IN STREAM CHANNEL
F. STONE
G. CROSS VANE
H. J-HOOK VANES
1. ROOT WADS
J. COCONUT FIBER (COIR) BLANKET
K. VEGETATION PLANTINGS
L. EROSION CONTROL
M. STREAM CROSSING
N. UTILITY EASEMENTS
0. COOPERATION BETWEEN CONTRACTORS
III. SUMMARY OF QUANTITIES
I. CONSTRUCTION SEQUENCE OF EVENTS
The Contractor is responsible for the following sequence of construction in accordance with the plans and
the following special provisions.
I. Initial Site Preparation
1. Prepare staging area.
2. Prepare stockpile area.
3. Install stream crossing.
4. Stake construction limits.
5. Stake clearing limits.
6. Perform clearing and grubbing activities; salvage trees of basal diameter greater than 10
inches for use as root wads. Stockpile root and trunk sections (if > 12 ft long) removing
branches and disposing of as directed in plan. Excavate flagged live shrubs and trees with
intact rootballs for later transplanting.
7. Remove and dispose of debris from existing stream channel and surrounding project area.
II. Construct proposed stream from Station -SREV- 20+47 to -SREV- 27+43
1. Install temporary stream diversion from head of central bar to right bank
2. Grade right bank from beginning to end of project
3. Construct j-hook/root wad combination structures
4. Remove temporary stream diversion structure and replace from head of central bar to left
bank
5. Remove central bar
6. Grade left bank from beginning to end of project
7. Install cross vane/root wad combination structure
8. Finish grade channel along project length
9. Remove temporary stream diversion.
10. Seed, fertilize and lime stream banks with temporary seeding and permanent seeding.
11. Place coconut fiber blankets and staple.
12. Plant shrub and tree transplants, live stakes, and bareroot shrubs and trees.
II. SPECIAL PROVISIONS
A. General Specifications
1. There is no subsurface information available for this project. The Contractor shall make his own
investigation of subsurface conditions.
2. Contractor is responsible for clearing and disposing of any fallen trees or other trees that lie within
construction limits in accordance with the plan sheets, as directed by the Supervising Engineer.
3. Contractor is responsible for clearing and disposing of any man-made materials or other debris that lie
within construction limits in accordance with the plan sheets, as directed by the Supervising Engineer.
B. Construction Surve
The construction survey shall be performed in accordance with Section 801 of the 1995 Standard
Specifications and shall include but not be limited to setting the construction baseline, setting thalweg and
any other survey incidental to construction as directed by the Supervising Engineer.
Payment at the contract Lump Sum (LS) price for "Construction Surveying" will be made for providing
all construction layout, surveying, stakeout, and engineering necessary for the proper construction
operations to construct the project in accordance with the lines, grades and dimensions detailed in the
plans, attached cross-sections and provisions.
Payment will be made under
Construction Surveying ........................................ Lump Sum (LS)
C. Access Roads and Haul Roads
Description
Access to the project site shall be limited to the existing access route or to that agreed upon by the
landowner.
A construction entrance shall be established. A stabilized pad of crushed stone shall be located where
traffic will be entering or leaving the construction site. A minimum depth of 6 inches of No. 5 Filter
Stone shall be placed at the entrance to the existing access road on the North side of the property. The
Contractor shall determine if Type 2 filter fabric shall be placed under the stone. Other areas along the
existing access route shall be treated on an as need basis to maintain trafficability. The standard size of
stone shall meet the gradation and any other requirements of Table 1005-1 of the 1995 Standard
Specifications. The entrance shall be wide enough and have a turning radius sufficient enough to provide
coverage for all construction vehicles the Contractor may utilize during the extent of the project. A 30 ft.
turning radius is recommended on either side of the access road. The entrance shall be maintained in a
condition, which will prevent tracking or flowing of sediment onto public streets or existing pavement.
This may require periodic top dressing with additional stone as conditions demand and repair and/or
cleanout of any measures used to trap sediment. Any sediment spilled, dropped, washed or tracked onto
public streets must be removed immediately. When necessary, wheels must be cleaned to remove
sediment prior to entering a public street. When washing is required, it shall be done on an area stabilized
with crushed stone, which drains into an approved sediment basin. Filter fabric shall meet the
requirements of Section 1056 for Type 2 fabric from the 1995 Standard Specifications.
Damage to any existing access road or vegetation shall be repaired to a condition that is at least as good as
the road condition before start of construction, as directed by the Supervising Engineer.
Construction
Construction of the entrance shall meet the requirements as specified on the plan sheets, as directed by the
Supervising Engineer.
Method of Measurement
The quantity of filter fabric to be paid for will be at the contract unit price per square yard as measured
along the surface of the ground.
Payment for installation of stone shall be paid for as outlined under "Stone" below.
Such price and payment will be full compensation for all work covered by this section. This payment
shall be considered full compensation for all labor, equipment, materials and incidentals necessary to
construct and maintain the construction entrance and maintain the access road.
Payment will be made under:
Filter Fabric, Type 2 ............................................ 200 Square Yard (SY)
A Grading Oaerations
Description
The Contractor shall perform grading as shown on plan sheets and attached cross-sections. Final grades
prior to final planting operations shall meet the grading plan and cross-sections within a tolerance of ± 0.2
feet (2.4 inches). Stream dimensions shall meet typical cross-sections within a tolerance of + 0.2 feet
(2.4 inches). Field conditions may dictate necessary adjustments to grading plans. In such cases, the
Supervising Engineer shall indicate adjustments to the Contractor. Adjustments may include, but are not
limited to, spot grading in areas where shrub and tree transplants need to be planted. Grading in these
areas will be on a site-specific basis since each root mass will have different dimensions.
No compaction shall be performed for graded areas unless otherwise specified on plan sheets, these
specifications, or as directed by the Supervising Engineer.
Payment
All work covered by the provision will be paid for at the contract lump sum price for "grading."
Payment will be made under:
Grading ........................................................... Lump Sum (LS)
E. Construction Activities in Stream Channel
Excavation of Material On-Site
Suitable soil material excavated from the stream channel or stream access shall be stockpiled for use in
construction. Any debris or unsuitable soil material removed during excavation shall be removed from the
site and disposed of properly, as directed by the Supervising Engineer. Materials that are in excess of the
needs of the project are to be disposed of by the Contractor. If additional fill material is needed, the
Contractor must supply that material per the direction of the Supervising Engineer.
F. Stone
Description
The work covered by this section consists of furnishing, stockpiling, placing and maintaining an approved
stone to be utilized to construct Cross-Vanes, J-Hook Vanes, Root Wad structures, stream crossings and
for use in other locations as directed by the Supervising Engineer.
Materials
Stone for and "Boulder, Footer and Header" shall consist of blasted granite quarry stone. The stone shall
be sound, tough, dense, resistant to the action of air and water, and suitable in all other respects for the
purpose intended
Stone for "Stone, Class A" "Stone, No.5 Filter" and "Boulder" shall consist of blasted granite quarry
stone. The stone shall be sound, tough, dense, resistant to the action of air and water, and suitable in all
other respects for the purpose intended.
All stone shall meet the approval of the Supervising Engineer. While no specific gradation is required, the
various sizes of the stone shall be equally distributed within the required size range. The size of an
individual stone particle will be determined by measuring its long dimension.
Acceptance Criteria for Stone
RE UIRED STONE SIZES-INCHES
CLASS Minimum Avera a Maximum
.
A 2 4 6
No.5 Filter 3/8 3/4 1 1/2
Boulder, Min.
48" x 48" x 36"
36
N/A
48
Boulder, Max.
72" x 60" x 48"
48
N/A
72
No more than 5.0% of the material furnished can be less than neither the minimum size specified nor no
more than 10.0% of the material can exceed the maximum size specified.
Boulders of approximate dimensions between 48" x 48" x 48" (-1.8 cubic yards, -2 Tons) to 72"x 60"x
48" (-4.4 cubic yards, 7 Tons) shall be individually picked from the quarry for use in the Cross-Vanes,
Root Wad structures, and J-Hook Vanes. Boulders shall be relatively flat on either side in the same
dimension, preferably the long dimension.
Construction Methods
The Contractor shall place stone, in locations shown on the plans or as directed by the Engineer, to the
thickness, widths, and lengths as shown on the plans or directed by the Supervising Engineer. All stone
shall be placed to form an erosion control device or an in-stream structure in accordance with the plans
neatly and uniformly with an even surface and shall meet the approval of the Supervising Engineer.
Method of Measurement
The quantity of stone to be paid for will be the actual number of tons or pounds of stone that has been
incorporated into the work, or has been delivered to and stockpiled on the project as directed by the
Supervising Engineer. Stone that has been stockpiled will not be measured a second time. The stone will
be measured by being weighed in trucks on certified platform scales or other certified weighing devices.
4
Basis of Payment
The quantity of stone measured as provided above, will be paid for at the contract unit price per ton for
"Boulder ", "Stone, Class A" or "Stone, No. 5 Filter". Such price and payment will be full
compensation for all work covered by this section, including but not limited to furnishing, weighing,
stockpiling, rehandling, placing, and maintaining the stone and disposal of any materials not incorporated
into the project if directed by the Supervising Engineer.
Payment will be made under:
Stone, Class A .......................................
........ 68 Tons
Stone, No.5 Filter ............................................ 55 Tons
Boulder ......................................................... 750 Tons
G. Cross Vane
Description
This structure serves to maintain the integrity of the upstream riffle while promoting scouring in the
downstream pool. The design shape is roughly that of the letter "U" with the apex located on the
upstream side at the foot of the riffle. Header and footer rocks shall be of minimal dimensions of 48" x
48" x 36". Footer rocks are placed in the channel bottom for stability. Header rocks are then placed on
top of these footer rocks in the middle of the channel at approximately the same elevation as those rocks
in the riffle. On either side of the channel, rocks are placed at an angle to the stream bank, gradually
inclining at a 7% slope until they intersect the bank. The structure is tied into the bank with a root wad.
Water flowing downstream is forced over these rocks towards the middle of the channel on either side of
the structure, effectively scouring out a pool below. Rocks placed at the apex hold back streambed
material and prevent it from washing downstream. A cross vane is primarily used for grade control.
Materials
All stone materials shall meet the requirements of Boulder as outlined under "Stone" above. Root wads
shall meet the requirements as outlined under "Root Wads" below.
Installation
A root wad shall be driven into the bank at an angle that is in line with the wing portion of the cross vane
(a 20 to 30 degree angle from the bank). A trench shall be dug in such a manner that the entire footer
rock and a minimum of 2/3 of the header rock is buried beneath the bed surface elevation. Refer to the
Plan Sheets for exact installation guide and locations based on the type of Cross-Vane to be installed. An
excavator, with a bucket that contains a hydraulic thumb, shall be used to place rocks with the supervision
of Supervising Engineer. Footer rocks shall be placed first with header rocks placed on top prior to any
back filling of the trench. Header rocks shall angle from bed elevation at the head of the vane to the bank
at an angle of 7%. Header and footer rocks at both banks shall be tied in securely to a root wad to stabilize
the region of the bank which the cross vane intersects the bank.
Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods.
Method of Measurement
The quantity of boulder and root wads to be paid for will not be measured for payment under this section.
Basis of Payment
Payment for installation of boulders shall be paid for as outlined under "Stone", above. Payment for
installation of root wads shall be paid for as outlined under "Root Wads" below.
This payment shall be considered full compensation for all labor, equipment, materials, and incidentals
necessary to construct the cross vane.
H. J-Hook Vanes
Description
This structure is designed to break up the secondary circulation cells, which cause stress in the near-bank
region. It also forces the thalweg away from the bank towards the middle of the stream channel. Similar
in design to the cross-vane, these structures are placed on the outside of meanders. Footer rocks are
placed on one side of the channel bottom for stability. Header rocks are placed on top of the footer rocks.
The vane slopes upward at a slope of 5% from the center of the channel to the bank. Additional boulders
are placed perpendicular to this structure giving it a "J" shape. The J-Hook Vane helps relieve stress on
the near-bank region and provides fish habitat. A root wad is placed in the bank in combination with the
rock portion of the structure.
Materials
All stone materials shall meet the requirements for boulders as outlined under "Stone" above. Root wads
shall meet the requirements as outlined under "Root Wads" below.
Installation
A root wad shall be driven into the bank at an angle that is in line with the wing portion of the j-hook
vane (a 20 to 30 degree angle from the bank). A trench shall be dug in such a manner that the footer
rocks and a minimum of 2/3 of the header rocks area buried beneath the bed surface elevation in locations
specified on the plan sheets, as directed by the Supervising Engineer. A backhoe, with a bucket that
contains a hydraulic thumb, shall be used to place the boulders. Boulders shall have minimal dimensions
of 48" x 48" x 36". Footer rocks shall be placed first with header rocks placed on top prior to backfilling
the trench. In the center of the channel, the header rocks shall be placed just above the bed elevation,
while the header rocks on the banks shall be placed at the bankfull elevation. Header rocks shall slope of
5% from the bed elevation at the head of the vane to the bankfull elevation. Header and footer rocks at
bank shall be tied in securely to a root wad to stabilize the region of the bank which the j-hook vane
intersects the bank.
Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods
Method of Measurement
The quantity of boulder and root wads to be paid for will not be measured for payment under this section.
Basis of Payment
Payment for installation of boulders shall be paid for as outlined under "Stone", above. Payment for
installation of root wads shall be paid for as outlined under "Root Wads" below.
This payment shall be considered full compensation for all labor, equipment, materials, and incidentals
necessary to construct the J-hook vane.
1. Root Wads
Description
The objectives of these structure placements are to: (1) protect the streambank from erosion; (2) provide
in-stream and overhead cover for fish; (3) provide shade, detritus, terrestrial insect habitat; (4) look
natural, and (5) provide diversity of habitats (Rosgen 1996). In areas along the streambank where there is
no remaining deep rooting vegetation, a footer log and boulder are placed on the channel bottom and abut
the streambank along an outside meander. This provides support for the root wad and additionally
stability to the bank. A large tree root wad is then placed on the streambank with additional boulders and
rocks on either side for stability. This structure directs flowing water away from the bank and towards the
center of the channel.
Materials
All materials shall meet the approval of the Supervising Engineer. Root-ball shall have a diameter
between 3 and 6 feet. Soil may be removed from the root mass. The tree shall have been alive when
recently removed from the ground. The trunk shall extend 15-20 feet from root-ball and be cut to a point
at the end. Tree basal diameter shall be a minimum of 10 inches. Softwoods such as pine or poplar shall
not be used as root wads.
All boulder materials shall meet the requirements for boulders as outlined under "Stone" above.
Installation
The root wad shall be driven into the bank in the locations directed on the plan sheets, as directed by the
Supervising Engineer. The root mass shall point upstream at an angle that corresponds to the wing portion
of the cross vane or the j-hook vane (a 20 to 30 degree angle to the bank). There shall be no void between
the root mass and the bank on the upstream side of the channel. A boulder shall be placed on the
downstream side between the root mass and the bank to provide erosion control. The boulder shall be
approximately 48" x 48" x 36".
The preferred method for installation is to drive the trunk of the root wad into the streambank using a
excavator that contains a hydraulic thumb. If it is deemed not possible to drive the trunk into the bank, a
trench shall be dug in the bank and the trunk shall be placed in the trench. The trench shall be backfilled
and compacted.
Any disturbed soil shall be seeded utilizing temporary and permanent seeding methods.
Method of Measurement
The quantity of root wads to be paid for will be the actual number of root wads utilized during
construction of the project.
The quantity of boulder to be paid for will not be measured for payment under this section.
Basis of Payment
The quantity of root wads will be paid for at the contract unit price per stem for "Root Wads"
Payment for installation of boulder shall be paid for as outlined under "Stone", above.
Such price and payment will be full compensation for all work covered by this section, including but not
limited to furnishing, weighing, stockpiling, rehandling, placing, and maintaining root wad structure and
disposal of any materials not incorporated into the project if directed by the Supervising Engineer.
Payment will be made under:
Root Wads ....................................................... 8 Stems
J. Coconut Fiber (Coir) Blanket
Description
Furnish materials, install and maintain Coconut Fiber (Coir) Blanket in locations shown on the plans or in
locations as directed by the Supervising Engineer. Work includes providing all materials, excavating and
backfilling, and placing and securing Coconut Fiber Blanket.
7
Coconut Fiber Blankets will only be used in locations specified by the Supervising Engineer. Locations
will primarily be on streambanks that have little or no vegetation established in the newly constructed
channel. Other problem areas may also require the placement of coconut fiber blankets.
Materials
M ttin
Provide coconut fiber matting to meet the following specifications:
Ph sical S eGlicationu 1EtQll}
Material 100% coconut (coir) twine woven into
high strength mat (blanket)
Thickness 0.30 in.
Tensile Strength 432 x 138 lb/ft.
Elongation 26% x 32%
Flexibility 19920 x 16790 mg-cm
Flow Velocity Observed 9 ft./sec.
Weight 11.8 oz/SY
Size 6.6 x 164 ft (120 s y) or (100 sm)
"C" Factor 0.002
Open Area (measured) 65%
Staples
Provide staples made steel wire formed-into a "U" shape not less than 8 in. (20 cm) in length with a throat
of 1 in. (2.5 cm) in width.
Construction
Place the coconut fiber blanket immediately upon final grading. Provide a smooth soil surface free from
stones, clods, or debris that will prevent the contact of the blanket with the soil. Apply fertilizer, seed and
lime prior to installing blankets. Begin at the top of the slope by anchoring the blanket in a 6-inch (15
cm) deep by 6-inch (15 cm) wide trench. Backfill and compact the trench after stapling with 5 evenly
spaced staples. Walking backward down the slope, allow the blanket to unroll slowly; ideally the blanket
roll will rest against your shin as you walk. Staple the blanket according to recommended staple pattern
for specific product and slope. (See staple pattern guide that comes with the product.) Place blankets
loosely and in full contact with the soil. The edges of the parallel blankets must be stapled with
approximately 2 inches (5 cm) of overlap such that the edge of the downstream blanket is under the one
just upstream. When blankets must be spliced down the slope, place blankets end over end (shingle style)
with approximately 6 inches (15 cm) overlap. Staple through overlapped area using 5 staples. Place
staples across the matting at ends, junctions and trenches approximately 1.3 ft (40 cm) apart. Place
staples along the outer edges, down the center of each strip of matting and along all lapped edges
approximately 2 ft (61 cm) apart. Cut excess blanket with scissors and anchor at end of slope.
The Supervising Engineer may require adjustments in the trenching or stapling requirements to fit
individual site conditions.
Measurement
The quantity of coconut fiber blanket measured will be paid for according to the actual number of square
yards measured along the surface of the ground over which the coconut fiber blanket is installed and
accepted by the Supervising Engineer.
Basis of Payment
The quantity of coconut fiber blankets, measured as provided above, will be paid for at the contract unit
price per square yard for "Coconut Fiber (Coir) Blanket". Payment for staples will be included in the
contract unit price for "Coconut Fiber (Coir) Blanket".
Payment will be made under:
Coconut Fiber (Coir) Blanket .................................. 2,780 Square Yards (SY)
K. Vegetation Plantings
SEEDING:
Seedbed Preparation: On sites where equipment can be operated safely, the seedbed shall
be loosened and smoothed by mechanical means such as disking or dragging. On sites where machinery
cannot be used, the seedbed shall be prepared by hand scarifying to provide a roughened surface so that
seed will stay in place.
Fertilization: Evenly distribute fertilizer and limestone over the area by mechanical means or with a
hand held fertilizer spreader. Uniformly mix lime and fertilizer into the top 3 to 4 inches of soil using a
drag or rake. The following rates shall be applied:
Per 1000 sq. ft.
Fertilizer: 18-46-00 ............................................. 121bs.
Limestone .................. 100 lbs
....................................... .
Temporary Seeding
Temporary seeding will be required on all areas disturbed following construction activities where
permanent vegetation cannot be established due to planting season and where temporary ground cover is
needed to allow native or woody vegetation to become established. Temporary seeding shall be in
accordance with Section 1620 of the 1995 Standard Specifications.
The following rates shall be applied:
Per 1000 so. ft.
Japanese Millet (Fall, Winter, Spring Seeding) ............. 1/2 lb.
Winter Wheat (Fall, Winter, Spring Seeding) ............... 1 lb.
Sudangrass (Summer Seeding) ................................ 1 lb.
Browntop Millet (Summer Seeding) ......................... 1 lb.
Method of Measurement
The quantity of temporary seeding, fertilizer and limestone to be paid for will be the actual number of
pounds/tons, which have been temporarily seeded, limed and fertilized.
Basis of Payment
The quantity of temporary seeding, limestone and fertilizer, measured as provided for above, will be paid
for at the contract price of pounds per acre for temporary seeding and fertilizer and tons per acre for
limestone.
Payment will be made under:
Temporary seeding .................................... 150 Pounds
Fertilizer ................................................ 600 Pounds
Limestone ............................................... 2.5 Tons
9
Permanent Seeding
Description
Permanent seeding shall be applied on newly constructed streambanks down to bankfull elevation.
Permanent seeding shall occur in conjunction with temporary seeding and woody vegetation plantings
where applicable
A riparian seed mix at the rate of 1/2 pound per 1000 square feet shall be used for seeding. Spring
planted seeds should be treated with a cold wet chill process to maximize germination. Fall plantings do
not require the chilling process. Seeding should be done evenly over the area using a mechanical or hand
seeder. A drag or hand rake should be used to cover the seed with no more than 1/2 inch of soil. The
following table lists herbaceous, permanent seed mixture labeled "riparian seed mix".
Materials
The following table lists herbaceous, permanent seed mixture labeled "riparian seed mix".
oxnmiitiame Y Scient c Name
Rice Cut Grass Leersia o wides 10
Soft Rush Juncus e sus 5
Deerton e Panicum clandestinum 10
Switch ass Panicum vir atum 10
Giant Cane Arundinaria i antea 5
River Oats Chasmanthium lati olium 10
Three-square Bulrush Scir us americanus 5
Wool ass Scir us cyperinus 5
Virginia Wild rye El mus vir inicus 5
Bottle-brush Grass H strix atula 10
Ho Sedge Carex lu ilina 5
Joe P ye Weed Eu atorium istulosum 5
Virginia Willow Itea vir inica 10
Cardinal Flower Lobelia cardinalis 5
Method of Measurement
The quantity of permanent seeding to be paid for will be the actual number of pounds, which have been
permanently seeded.
Basis of Payment
The quantity of permanent seeding, measured as provided for above, will be paid for at the contract price
of pounds per acre for permanent seeding.
Payment will be made under:
Permanent seeding .................................... 13 Pounds
Live Staking
Live stake materials shall be purchased from a reputable commercial supplier. Live staking plant
materials shall consist of a random assortment of materials selected from the following: Silky Dogwood
(Cornus amomum), Black Willow (Salix nigra), and American Elderberry (Sambucus canadensis).
10
Installation should occur during the dormant season i.e. late fall, winter, if the ground is not frozen, to
early spring before growth begins.
Live stakes shall be 1/2" to 2" in diameter, 2 to 3 feet in length, angled on the bottom and cut flush on the
top, with buds oriented upwards. Live stakes shall be living based on the presence of young buds and
green bark. All side branches shall be cleanly trimmed so the cutting is one single stem. Installation may
be started at any point on the slope face above bankfull elevation as described in the plans. Stakes shall
be installed 2 to 3 feet apart using triangular spacing or at a density of 2 to 4 stakes per square yard. Site
variations may require slightly different spacing. All lateral branches shall be carefully trimmed to avoid
damage to the bark ridge and branch collar. A minimum of two buds (one lateral plus one terminal or two
terminal) shall be above the planting depth. Stakes shall be driven into the ground using a rubber hammer
or by creating a hole and slipping the stake into it. The stakes shall be tamped in at a right angle to the
slope with four-fifths (4/5) of the stake installed BELOW the ground surface. Soil shall be firmly packed
around the hole after installation. Split stakes shall not be installed. Stakes that split during installation
shall be replaced.
The Contractor shall perform the operations provided for in these specifications in a careful, workmanlike
manner that will promote the continued life and healthy growth of all plants in their final location.
Method of Measurement
The quantity of live staking measured and accepted, will be paid for at the contract unit bid price per
square yard, measured along the surface of the ground, for "Live Staking".
Basis of Payment
The quantity of live staking, measured as provided above, will be paid for at the contract unit price per
stake for "Live Staking". The above prices and payments will be considered full compensation for all
work covered by this Section, including, but not limited to, furnishing, installing, and maintaining all live
stakes.
Payments will be made under:
Live Staking ...................................................... 4000 Stems
Bare Root Shrubs and Trees
Bare root vegetation to be planted along both sides of the new channel streambanks above bankfull
elevation shall consist of a random assortment of tree and shrub species including the following: River
Birch (Betula nigra), Green Ash (Fraxinus pennsylvanica), Black Walnut (Juglans nigra), Boxelder
(Acer negundo), Shumard Oak (Quercus shumardii), Sycamore (Platanus occidentalis), Tag Alder (Alnus
serrulata), Persimmon (Diospyros virginiana), and Spicebush (Lindera benzoin).
Installation should occur during the dormant season i.e. late fall, winter, if the ground is not frozen, to
early spring before growth begins. No planting shall be done when the temperature is below 32°F, when
soil to be excavated for the plant hole is frozen, when the sides or bottom of the plant hole are frozen, or
when the soil to be used for backfilling is frozen or too wet.
In digging, loading, transporting, unloading, planting, or otherwise handling plants, the Contractor shall
exercise utmost care and use adequate precautions to prevent injury to or drying out of the trunk,
branches, or roots; and to prevent freezing of the plant roots.
Immediately following delivery to the project, all plants with bare roots, if not promptly planted, shall be
heeled-in in constantly moist soil or sawdust in an acceptable manner corresponding to generally accepted
horticultural practice.
11
While plants with bare roots are being transported to and from heeling-in beds, or are being distributed in
planting beds, or are awaiting planting after distribution, the Contractor shall protect the plants from
drying out by means of wet canvas, burlap, or straw, or by other means acceptable to the Engineer and
appropriate to weather conditions and the length of time the roots will remains out of the ground.
Installation of bare root vegetation shall be located in designated areas along the streambank above and
below bankfull elevation or as directed by the Construction Supervisor. Soil in the area of shrub and tree
planting shall be loosened to a depth of at least 5 inches. This is only necessary on compacted soil. Bare
root plants may be planted in holes made by a mattock, dibble, planting bar, or other suitable means.
Rootstock shall be planted in a vertical position with the root collar approximately 0.5 inches below the
soil surface. The planting trench or hole shall be deep and wide enough to permit roots to spread out and
down without J-rooting. After planting, the soil shall be tamped around the shrub or tree firmly to
eliminate air pockets.
Spacing guidelines of rooted shrubs and trees are provided in the following table.
T. e S aein
Trees and shrubs (Various assortment) 10 - 15 ft.
Method of Measurement
The quantity of planting measured and accepted, for bare root shrubs will be paid for at the contract unit
bid price per square yard, measured along the surface of the ground, for "Bare Root Shrubs".
The quantity of bare root trees to be paid for will be the actual number of bare root trees utilized during
construction of the project.
Basis of Payment
The quantity of bare root trees, measured as provided above, will be paid for at the contract unit price per
stem for "Bare Root Trees".
The above prices and payments will be considered full compensation for all work covered by this Section,
including, but not limited to, furnishing, stockpiling, installing, and maintaining all bare root shrubs and
trees.
Payments will be made under:
Bare Root Trees ................................................. 250 Stems
L. Erosion Control
Erosion Control
All seeded areas and areas disturbed by construction shall be protected from erosion by installation of
erosion control matting or straw. The area from top of bank to toe of slope shall first be seeded and then
lined and stapled with coconut fiber matting. All other areas shall be seeded and strawed. Staples should
be installed on a 2-foot spacing.
Method of Measurement
The quantity of straw measured and accepted,' for erosion control will be paid for at the contract unit bid
price per square yard, measured along the surface of the ground, for "erosion control". The quantity of
coconut fiber matting will be measured for payment under the "Coconut Fiber Matting" section above.
The quantity of straw to be paid for will be the actual area utilized during construction of the project.
12
Basis of Payment
The quantity of matting and straw, measured as provided above, will be paid for at the contract unit price
per square yard. Payment for installation of Coconut Fiber Matting shall be paid for as outlined under
"Coconut Fiber Matting", above.
The above prices and payments will be considered full compensation for all work covered by this Section,
including, but not limited to, furnishing, stockpiling, and installing matting and straw.
Payments will be made under:
Straw ....................................................................... 2,780 Square Yards (SY)
A Stream Crossing
Description
This structure will serve as a means of crossing the existing and proposed stream to allow access via the
North side of the existing stream. The stream crossing will be placed in the location to be determined by
the Contractor.
Construction
A stream crossing shall be constructed to the dimensions listed on the plan sheets. Grading shall be
performed to form a ramp that will connect the stream bank grade to the streambed on the North side of
the stream. The Contractor shall determine an appropriate ramp angle for the stream crossing according
to the equipment that will be utilizing the crossing. A layer of Type 2 filter fabric followed by a 6 inch
base of Class A stone shall be placed on top of the ramp portion of the stream crossing.
Method of Measurement
The quantity of stone, Class A to be paid for will not be measured for payment under this section.
The quantity of Type 2 filter fabric will be paid for at the contract unit price per square yard of material
used in the construction of stream crossings.
Basis of Payment
Payment for installation of stone, Class A shall be paid for as outlined under "Stone, Class A".
Payment for installation of filter fabric will be paid for at the contract unit price per square yard for Filter
Fabric, Type 2.
Payment will be made under:
Filter Fabric, Type 2 .......................................... 200 Square Yards (SY)
N. Utility Easements
The best available information for the location, size, and type of material for all existing utilities shall be
shown on the plans. The Contractor will be responsible for making investigations for determining the
exact location, size, and type material of the existing facilities necessary for the construction of the
proposed utilities and to avoid damage to existing facilities. Any damages incurred to existing facilities
are the responsibility of the Contractor and shall be repaired to the original or better condition at no
additional cost to the contract amount.
13
O. Cooperation Between Contractors
In accordance with Section 105-7 of the Standard Specifications, the Department reserves the right at any
time to contract for and perform other or additional work on or near the work covered by the contract.
When separate or additional contracts are let within the limits of any one project, each Contractor shall
conduct his work so as not to interfere with or hinder the progress or completion of the work being
performed by other Contractors. Contractors working within the limits of the same project shall
cooperate with each other.
Each Contractor shall conduct his operations in such a manner as to avoid damaging any work being
performed by others or which others have completed.
When a project is let under more than one contract and the plans and/or special provisions include a
construction schedule, it shall be the responsibility of the Contractor to complete the various phases of the
project in accordance with the time limits specified such that the total contracts will be completed by the
completion date. This construction schedule will remain in effect until such time as the Contractors at
their option submit to the engineer a joint construction schedule meeting the approval of the Supervising
Engineer. This joint construction schedule shall be signed by authorized representatives of each firm and
upon the approval of the Engineer shall be binding on each Contractor and made a part of the contract
documents. Subsequent modifications to the joint construction schedule may be made during the course
of the work in the same manner.
Failure of the Contractor(s) to complete the various phases of work within the time limits set forth in the
construction schedule or latest approved joint construction schedule shall be just cause for removing the
Contractor(s) from the Department's list of qualified bidders. A Contractor disqualified from bidding by
reason of this provision will not be reinstated until such time as his progress is in accordance with the
latest approved construction schedule or until the project is completed and accepted, whichever occurs
first.
The Department will under no circumstances be liable for any claim for additional compensation due to
acts of one Contractor holding up the work of another.
The Department will under no circumstances be liable for any damages experienced by one Contractor as
a result of the presence and operations of other Contractors working within the limits of the same project.
14
r
III. SUMMARY OF QUANTITIES
DESC. SECT. * QUANTITY UNIT ITEM DESCRIPTION
2 801 LS CONSTRUCTION SURVEY
5 200 1.1 Acre CLEARING AND GRUBBING
SP 55 Tons STONE, NO. 5 FILTER
SP 68 Tons STONE, CLASS A
SP 750 Tons BOULDER
SP 8 Stems ROOT WADS
33 868 400 SY FILTER FABRIC, TYPE 2
SP 2780 SY COCONUT FIBER BLANKET
1068 1620 150 LB SEED FOR TEMPORARY SEEDING
1069 1620 600 LB FERTILIZER FOR TEMPORARY
SEEDING
1060 2.5 Ton LIMESTONE FOR TEMPORARY
SEEDING
SP 13 LB SEED FOR PERMANENT SEEDING
SP 4000 Stems LIVE STAKING
SP 250 Stems SHRUB AND TREE TRANSPLANTS
16 SP LS GRADING
SP 70 FT TEMPORARY STREAM DIVERSION
SP 2780 SY STRAW FOR EROSION CONTROL
LS MOBILIZATION
*Reference: North Carolina Department of Transportation (NCDOT) Standard Specifications for Roads
and Structures. July 1995. "English"
15
I p?
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VtNUL)h Ivv, L. P1 tl.R UH I t
INVOICE NUMBER DATE DESCRIPTION = AMOUNT D(Sf 4 % W NT
51000 5-10-00 Application Fee 475.00 x475.00
Zy672-7
MAY CIA 2000
GROUP
ASECTIO N