20081304 Ver 3_More Info Received_20090123

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ENGINEERING. ARCHITECTURE. SURVEYING

January 22,2009 .

Cyndi B. Karoly
DWQ - 401 Overnight/Express Review Permitting Unit
2321 Crabtree Blvd.
Suite 250
Raleigh, NC 27604

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.JAN 2 3 2009

Re: Comment Revisions - Treyburn Walking Trail Phase 1
DWQ Project # 2008-1304v3

DENR - WAl ER QUALiTY
WETLANDSANDSTORMWATERBRANCH

Dear Mrs. Karoly,

Please find (3) revised copies of plans for Treyburn Walking Trail Phase 1 per your
comment letter dated December 18, 2008. I have also answered the 5 bullet points listed
in your letter below.

· The designations for channels 7 A and 7B were reversed in the tables; the table
has been corrected. 7B does discharge into 7A. Pipe #10 was added to redirect
the flow from 7 A into the existing channel on the other side of the trail.
· The calculations for 4A already take into account the water coming from
channels 4A (upper) and 4B. Channe14B is within 4A, and is analyzed
separately, due to its steeper slope. Please note the use ofT300 lining for
Channel 4 B.
· Labels have been added on the plans to reflect the slope of the buffers. The 10
year event velocity in channel 4A was reduced to below 2 fps by widening the
bottom of the channel. (See table).
· Pictures of the vegetation in the buffers of channels 4A and 7 A are attached.
· The drainage area for Channel 5 was incorrect (0.46 Ac). The correct drainage
area is 0.10 Ac as noted in the table, and is comprised of a narrow area between
the proposed trail and the existing cut slope along Teknika Parkway.

Please approve the Diffuse Flow/Stormwater Management Plan, and send me a letter for
Buffer Authorization at your earliest convenience. If you require any further information,
or have questions regarding the submittal, please contact me at [phone].

Sincerely,

Summit Consulting - Engineering Architecture and Surveying, PLLC

A~~er

1000 Corporate Drive · Suite 101 · Hillsborough, NC 27278
Telephone [phone] · Fax [phone]

www.summit-engineer.com

314-A North Madison Boulevard · Roxboro, NC 27573
Telephone [phone] · Fax [phone]

Michael F. Easley, Governor

William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources

Coleen H. Sullins, Director
Division of Water Quality

December 18, 2008

DWQ Project # 2008-1304v3
County: Durham

CERTIFIED MAIL: RETURN RECEIPT REQUESTED

RECEIVED DEe 1
9 2008

Treyburn Corporate Park, LLC
Attn: Mr. Terry Sanford, Jr.
2200 West Main Street, Suite 900
Durham, NC 27705

Subject Property:

Treyburn Walking Trail Phase 1, Durham, NC
UT to Perry Creek [030402, 27-25-(2), C, NSW]

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JAN 2 3 2009
WETI.AN':s~~D ~~TERQUALrrY
ORMWA1l:R BRANCH

REQUEST FOR MORE INFORMA TION- Diffuse Flow/Stormwater Management Plan

Dear Mr. Sanford, Jr.:

On November 3,2008, the Division of Water Quality (DWQ) received the diffuse flow plan prepared by
your engineer, Alan Pytcher, of Summit Consulting, to comply with the conditions of the buffer
authorization that was issued on November 13,2008. The following additional infonnation is needed
before the Plans can be approved:

· The drainage area of 7B is greater than that of 7 A. Please indicate the outfall of 7B. If 7B has a
separate outfall, the velocity should be reduced to below 2fps or consider using level spreader. If
7B drains to 7 A, then the design calculations of 7 A would not be correct, and need to be revised
to include flow from 7B.
· Similarly the design calculations for 4A (downstream) should be analyzed taking into
consideration drainage areas of or flows from upstream channels 4A and 4B.
· Please indicate the slopes in the buffer following the outfalls in channels 4A and 7A. (Using a
scale of I" : 40', I am getting approximately 8% for 7A buffer and 7% for 4A buffer). Which
means that the water flows from a steeper slope in channel 4A (9.1 %) into a little bit flatter slope
(7%) in the buffer. On the other hand, water will flow from a much flatter slope 4.7% to 8% in
the buffer). You may have to tie both 7A and 4A to the existing channels on the other side of the
trail, or you may have to install a level spreader to follow the contours on the same side of the
channels, especially when the upstream drainage areas or flows have been accounted for in the
design calculations of the downstream channels.
· Include photos of the existing vegetation in the buffer at the outfall of channels 4A and 7 A.
· With respect to channel 5, you could still discharge i,nto the existing channel as you propose.
However, it is still required that the 10-year stonn velocity prior to discharging into the
existing channel shall be less than 2fps. So please consider revising channel 5 as well.

N~~hCarolina
/VOltlfO//!f

401 OversightlExpress Review Pennitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone]/ FAX [phone]/lnternet: http://h2o.enr.state.nc.us/ncwetlands

An Equal Opportunity/Affinnative Action Employer - 50% Recycledl10% Post Consumer Paper

Please respond in writing within 30 calendar days of the date of this letter by sending three (3) copies of
this infonnation in writing. If you will not be able to provide the requested infonnation within that
timeframe, please provide written confInnation that you intend to provide the requested infonnation, and
include a specific timetable delineating when the requested materials will be provided. If we do not hear
from you in 30 calendar days, we will assume that you no longer want to pursue this project and we will
consider the project as returned.

This letter only addresses the Diffuse Flow/Stonnwater Management Plan review and does not authorize
any impacts to wetlands or streams until the plans are approved. Please call Joseph GyamfI at 919-733-
1786 if you have any questions regarding these issues.

CBKlijm/asc

Sincerely,

IX" jl
Cyndi B. Karoly
. 401 Oversight/Express Review Pennitting Unit

cc: Lauren Witherspoon, DWQ Raleigh Regional Office
File Copy
Alan Pytcher, Summit Consulting, 1000 Corporate Drive, Suite 101, Hillsborough, NC 27278
Matt Matthews, DWQ Wetlands and Stonnwater Branch

Filename: 081304v3Treybum W alkingTrail(Durham)SW _ On_Hold

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EXISTING VEGETATION IN THE BUFFER AT THE OUTFALL OF CHANNEL
7 A- TREYBURN 'vV ALKING TRAIL PHASE 1

EXISTING VEGETATION IN THE BUFFER AT THE OUTFALL OF
CHANNEL 4A-TREYBURN vV ALKING TRAIL PHASE 1

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- SHEET INDEX
....
COVER SHEET ~ 1
EROSION CONTROL & GRADING PLAN & PROFILE SHEETS 2-6 --
EROSION CONTROL DETAILS 7
BUFFER IMPACT MAP 8
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DURHAM COUNTY, NORTH CAROLINA

VICINITY MAP
, (NOT TO SCALE)

EROSION CONTROL AND BUFFER IMPACTS PLAN

(REFERENCE TREYBURN CORPORATE PARK PEDESTRIAN TRAIL MASTER PLAN)

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GENERAL CONDITIONS OF APPROVAL

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R.-i.!.RHAM COUNTY STANDARD NOTES

"'A:
ALL CONSTRUCTION SHALL COMPLY WITH DURHAM COUNTY STANDARDS AND SPECIFICATIONS.

"8"

AT THE START OF GRADING INVOLVING THE LOWERING OF GRADE AROUND A TREE. OR STRIPPING OF TOPSOIL. A CLEAN, SHARP, VERTICAL CUT SHALL BE MADE AT THE EDGE OF THE TREE .'
SAVE AREA AT THE SAME TIME AS OTHER EROSION CONTROL MEASURES ARE INSTALLED. THE TREE PROTECTION FENCING SHALL BE INSTALLED ON THE SIDE OF THE CUT FARTHEST
AWAY FROM THE TREE TRUNK AND SHALL REMAIN IN PLACE UNTIL ALL CONSTRUCTION IN THE VICINITY OF THE TREES IS COMPLETE. NO STORAGE OF MATERIALS, FILL OR EQUIPMENT AND
NO TRESPASSING SHALL 8E ALLOWED WITHIN THE 80UNDARY OF THE PROTECTED AREA.

"C-
ALL LANDSCAPING MUST BE IN PLACE PRIOR TO REQUEST FOR CERTIFICATE OF OCCUPANCY OR CERTIFICATE OF COMPLIANCE.

"'[)"
EACH LANDSCAPING COMPLIANCE INSPECTION AFTER THE INITIAL INSPECTION WILL INCUR A RE-INSPECTION FEE, STARTING AT $100 + 4 -% TECHNOLOGY SURCHARGE. EACH SUBSEQUENT
RE.INSPECTION WILL INCREASE BY $100 + 4 % (EXAMPLE 1ST .$104, 2ND -$208, 3RD -$312. ETC), PAYMENT MUST BE RECEIVED BY THE DURHAM CITY COUNTY PLANNING DEPARTMENT PRIOR
TO HE,INSPECTION

"E"
Tt' 'OGRAPHIC INFORMATION SURVEY FROM ACTUAL SURVEY POINT DATA.

'"F'"
TREE PROTECTION FENCING MUST BE IN PLACE PRIOR TO ANY DEMOLITION. LAND DISTRUBANCE OR ISSUANCE OF A GRADING PERMIT AND SHALL INCLUDE WARNING SIGNS POSTED IN
Bon! ENGLISH AND SPANISH. AS FOLLOWS' "NO TRESPASSINGITREE PROTECTION AREAlPROHIBIDO ENTRARlZONA PROTECTORA PARA LOS ARBOLES."

'"G"
ROOT ZONE PROTECTION (\REA EQUALS ONE FOOT OF RADIUS FOR EVERY INCH OF DIAMETER OF EXISTING TREES, OR SIX FOOT RADIUS. WHICHEVER IS GREATER. NO DISTURBANCE
ALL OWE 0 WITI!lN THIS AREA AREA MUST BE PROTECTED WITH BOTH TREE PROTECTION FENCING AND WARNING SIGNS.

"I'"
A COpy OF Tt iE APPROVED SITE PLAN MUST BE ON SITE AND AVAilABLE FOR PERIODIC INSPECTION AND USE DURING CONSTRUCTION TO EVALUATE COMPLIANCE WITH THE APPROVED
SITE PLAN REOUIRED INSPECTIONS WILL NOT TAKE PLACE IF THE JOB SITE COPY IS NOT AVAILABLE AND RE-INSPECTION FEES WILL BE CHARGED.

T
THE DEVELOPER IS RESPONSIBLE FOR FABRICATiON AND INSTALLATION OF ALL REQUIRED SIGNS AND PAVEMENT MARKINGS WITHIN THE PUBLIC RIGHT OF WAY. THE DEVELOPER SHALL
SUBMIT A SIGNING AND MARKINGS PLAN TO THE CITY AT CONSTRUCTION PLAN STAGE FOR REVIEW AND APPROVAL. ALL SIGNS AND PAVEMENT MARKINGS SHOWN ON THE CONSTRUCTION
PLANS MUST BE IN PLACE PRIOR TO THE ISSUANCE OF ANY CERTIFICATE OF OCCUPANCY AND/OR STREET ACCEPTANCE. AS DETERMINED BY THE CITY.

".r
STORMWATER CONTROL CONSTRUCTION DRAWINGS APPROVAL FROM COUNTY ENGINEERING IS REQUIRED PRIOR TO LAND-DISTURBING PERMIT ISSUANCE.

"K"
;\ S fORMWA TER PERMIT IS REQUIRED PRIOR TO ISSUANCE OF CERTiFICATE OF OCCUPANCY.

'[,"
A l AND DISTURBING PEHMIT IS REQUIRED AN EROSION CONTROL PLAN MUST BE APPROVED PRIOR TO ISSUANCE OF THE LAND-DISTURBING PERMIT.

"M"
S T HEAM BUFFER INTRUSIONS SHALL BE REVEGETATED WITH NON FESCUE NATIVE GRASSES.

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. SITE DATA:

COMPANY SITE DATA:

LOCATION:
TREYBURN CORPORATE PARK
TEKNIKA PARKWAY
DURHAM. NC 27712
ZONING: Il. RR,SRP
TIER: SUBURBAN
WATERSHED: F/J-A
BASIN: NEUSE
TOTAL PROPOSED IMPERVIOUS
SURFACE: 69,980,8 sa. FT,::: 0.885 %
FEMA MAP#: 3720084500J
EFFECTIVE DATE: MAY 2,2006

1.COMPANY: AW NORTH CAROLINA
PIN #: 0845-04-71-9769
OBI PG:0026191 000827
ZONING: IL
EXISTING IMPERVIOUS: 36.92AC, 1,608,235.2 SF OR 30 %
PROPOSED IMPERVIOUS: 0.471 %= 25,296.0 SF
TOTAL IMPERVIOUS SURFACE: 30.0471 %, 1,633,531.2 SF
LINEAR FOOTAGE OF TRAIL: 3,573LF
ACREAGE:123.42 OR 5,376.175.2 SF
LAND USE: INDI MANUF. - PROCESSING
SITE ADDRESS: 4112 OLD OXFORD HWY

SITE IS NOT IN A SPECIAL FLOOD HAZARD AREA
OR FUTURE CONDITIONS FLOOD HAZARD AREA.

DEVELOPER:

TERRY SANFORD JR.
TREYBURN CORPORATE PARK. LLC
SUITE 900. 2200 W. MAIN ST.
DUR~AM. NC 27705
[phone]

CONTACT:

BEFORE YOU DIG!
CONTACT ONE.CALL CENTER
1-800-632-4949
../

ALAN PYTCHER
SUMMIT CONSULTING ENGINEERS
1000 CORPORATE DRIVE SUITE 101
HILLSBOROUGH. NC 27278
[phone] (PHONE)
[phone] (FAX)
ALAN. [e-mail]

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END WAllKING TRAil
ST A. 69+60

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r

SPECIAL CONDITIONS OF APPROVAL

.

. ....:

1. ALL SIZES. MATERIALS. SLOPES. GEOMETRY. LOCATIONS, EVALUATIONS. EXTENSIONS AND DEPTHS FOR ALL
EXISTING AND PROPOSED STREETS AND UTILITIES (WATERLINES. SANITARY SEWER LINES AND STORM DRAINAGE
CONVEYANCE SYSTEMS) SHALL BE DESIGNED TO THE SPECIFICATIONS SET FORtH IN THE DESIGN CRITERIA AND
STANDARDS OF THE DURHAM COUNTY ENGINEERING DEPARTMENT.

2. THE DESIGNING PROFESSIONAL (A NCPE, NCPLS OR NCRLA - AS REQUIRED) WILL SUBMIT 3 SETS OF CONSTRUCTION
DRAWINGS TO THE DURHAM COUNTY ENGINEERING DEPARTMENT FOR REVIEW AND APPROVAL BEFORE STARTING
CONSTRUCTION. NOTE: THE APPROVAL OF CONSTRUCTION DRAWINGS IS SEPARATE FROM SITE PLAN APPROVAL

3. ALL SIZES. MATERIALS. SLOPES, LOCATIONS. EXTENSIONS AND DEPTHS FOR ALL PROPOSED STORM DRAINAGE
CONVEYANCE SYSTEMS SHALL BE REVIEWED AT CONSTRUCTION DRAWING APPROVAL BY THE DURHAM COUNTY
ENGINEERING DEPARTMENT.

4. FINAL PAVEMENT MARKINGS AND SIGNING PLANS SHALL BE SUBMITTED TO THE DIVISION TRAFFIC ENGINEER FOR
APPROVAL PRIOR TO THE INSTALLATION OF ANY SIGNS AND/OR PAVEMENT MARKINGS.

5. THE TRAIL SHALL BE A 6' WIDE ASPHALT TRAIL AS APPROVED BY TREYBURN CORPORATE PARK MASTER TRAIL PLAN
AMENDMENT 00700506 APPROVED JUNE 20. 2008,

6. PROPOSED IMPERVIOUS SURFACES FOR THIS PROJECT WHICH ARE NOT LOCATED WITHIN THE RIGHT -OF-WAY SHALL
BE COUNTED TOWARDS THE MAXIMUM IMPERVIOUS SURFACE FOR THE SUBJECT PROPERTIES.

7. ALL HlC RAMPS AND BOARDWALKS MUST COMPLY WITH NC ACCESSIBILITY CODE AT THE TIME OF CONSTRUCTION.

8. A NCDOT ENCROACHMENT PERMIT SHALL BE PERMITTED FOR ALL RIGHT -QF.WA Y ENCROACHMENTS. CONTACT THE
NCDOT AT 2204750.

9. ADA RIGHT-OF-WAY GUIDELINES AND US FOREST SERVICE TRAIL ACCESSIBILITY GUIDELINES (FSTAG) HAVE BEEN
UTILIZED AS THE BASIS FOR TRAIL DESIGN CONSIDERATIONS. PROFILE GRADE OF PROPOSED TRAIL DOES NOT
EXCEED 8% AS NOTED HEREIN. WHERE PROFILE GRADE EXCEEDS 6 % FOR MORE THAN 200LF. LEVEL LANDINGS
(5-FEET WIDE) HAVE BEEN PROVIDED ACCORDINGLY TO FST AG.

.,

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APPROVAL STAMP

.
CASE NUMBER 00800125

!iiJ&~r&
k1! ~ L!:?;r f7~fL~ IiiI
JAN 2 a /P;
2009
WETI.AN'tl~ZD ~:g:R QUALI1Y
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2. COMPANY: TREYBURN CORPORATE PARK. LLC
PIN #: 0845-03-92-7927
OBI PG: 003852/ 000261
ZONING: SHP
EXISTING,IMPERVIOUS: NIA
PROPOSE)O IMPERVIOUS: 0.843. %= 36,728.6 SF
TOTAL IM!~ERVIOUS SURFACE: 30.0471 %, 1,633,531.2 SF
LINEAR FbOTAGE OF TRAIL: 520LF
ACREAGE~: 17.91 AC. OR 780,159.6 SQ. FT
LAND USE: VACANT INDUSTRIAL
SITE ADDRESS: 4590 TEKNIKA PARKWAY

3,COMPANY: TREYBURN CORPORATE PARK, LLC
PIN #: 0855-03-03-2690
DB/PG: 003852/000261
ZONING:RR, SRP
EXISTING IMPERVIOUS: N/A
PROPOSED IMPERVIOUS: 0.365%= 15,905.8 SF
TOTAL IMPER\lIOUS SURFACE: 30.0471 %,1,633,531.2 SF
LINEAR FOOTAGE OF TRAIL: 1,120LF
ACREAGE: 40.11 AC OR 1,747,191.6 SF
LAND USE: VACANT INDUSTRIAL
SITE ADDRESS:4602 TEKNIKA PARKWAY
TOTAL PROPOSED IMPERVIOUS SURFACE: 0.786 %= 62,184.18 SF
TOTAL LINEAR FOOTAGE OF TRAIL: 5,213LF
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* MAX, CROSS-SLOPE SHALL NOT EXCEED 1/4" 2:1 "'~.
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THE PLANS. DIRECTION OF CROSS-SLOPE SHALL BE .
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0.055
0.055
0.034
0.055
0.055
0.054
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1.28
1.57
1.43
1.55 .
4.14
1.60
1.51
2.36
4.24

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5750REQUIVALENT
575 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT

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NOTE: ALL HOPE PIPE BEDS MUST MEET ASTM 02321CLASSIA,IB, II, OR III.
NOTE: TEMPORARY AND PERMANENT SEEDING SPECIFICATIONS. (SEE EROSION
CONTROL DETAILS SHEET #7).

GV

PIPE 1:
18 LF .OF 15"
RCP/CMP/HDPE -,
WITHFES ON
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@ 2.00%

r- BEGINNING OF
WALKING TRAIL

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,.. CONSTRUCTION SPECIFICATIONS:

EMBANKMENT COMPACTION = 95% STANDARD PROCTOR
$t,,!BGBADE; CQMPACTION = JOO% $IANDARD PROCTOR {TOP 12"'
ABC COMPACTION = 100% STANDARD PROCTOR

ALL CONCRETE SHALL BE 4,000 PSI UNLESS OTHERWISE NOTED.
ALL PIPE SHALL BE HOPE UNLESS OTHERWISE NOTED.
ALL ABC STONE SHALL BE IN ACCORDANCE WITH NCDOT
STANDARD SPECIFICATIONS FOR ABC BASE.
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CHECK DAM
PIPE INLET PROTECTION
DROP INLET PROTECTION
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STORM DRAINAGE PIPE SCHEDULE

PIPE # INV.IN..

1
2
3
4
5
6
1
8
9
10
11

282.64
291.34
291.30
301.52
297.20
274.21
273.46
276,94
284.30
284.98
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INV. OUT PIPE
LENGTH
18'
16'
24'
24'
20'
20'
20'
24'
44'
20'
20'

PIPE
SIZE
15"
24"
30"
24"
18"
12"
12"
12".
24"
is''
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BEFORE YOU DIG!
CONTACT ONE-CALL CENTER
1-800-632-4949

GRADE FES MATERIAL

.RIP RAP CLASS
ILxWxH)
5' x 4' x 12"
12' x S'x is''
20' x S' x 24"
20' x 8' x24"
12' x S' x 24"
4'x3'x 12"
4'xS'x 12"
4' x 3' x 12"
16' x 6' x 24"
9' x S' xiS"
9'x5'x18"

282,28
290.20
296.29
300.68
295;40
213.21
273.06
276.28
282.50
284.50
. 285.52

2.00 %
7.14%
4.20%
3.50%
9;00%
2.00%
2.00%
3.15%
4.09%
2.00%
2.00%

2
2
2
2
2
2
2
2
2
2
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HOPE
HDPE
HOPE
HOPE
HOPE
HOPE
HOPE
HOPE
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HOPE

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1. OBTAIN GRADING pERMIT. OBTAIN APPROVED SET OF CONSTRUCTION DRAWINGS. KEEP A COPY OF BOTH ITEMS
ONSITE THROUGHOUT CONSTRUCTION~
2. CONTACT EROSION CONTROL OFFICER FOR ONSITE PRECONSTRUCTION CONFERENCE. CALL [phone].
3. CLEAR ONLY AS NECESSARY 'to INSTALL THE EROSION CONTROL DEVICES SHOWN ON THIS PLAN.
4. INSTALL TEMPORARY CONSTRUCTION ENTRANCE. ALL CONSTRUCTION TRAFFIC MUST EXIT THE PROPERTY AT THIS LOCATION.
5. INSTALL ALL SILT FENCES AND SILT FENCE OUTLETS.
6. INSTALL CROSS DRAINAGE CULVERTS AND ASSOCIATED INLET PROTECTIONS AND RIPRAP DISSIPATORS.
7. INSTALL AND STABILIZE TEMPORARY DIVERSION DITCHES. DIVeRSION DITCHES MUST BE SEEDED AND MULCHED WITHIN 3 DAYS OF COMPLETION.
8 . CONTACT EROSION CONTROL OFFICER AT [phone] FORONSITE INSPECTION.
9. MAINTAIN ALL EROSION CONTROL DEVICES UNTIL INSTRUCTED OTHERWISE. NO DISTURBED AREA IS TO BE lEFT WITHOUT PROTECTIVE COVER
(MULCH OR STRAWrrACK) FOR MORE THAN 21 CALENDAR DAYS.
10. GRADE THE ENTIRE SITE PER THE GRADING PLAN.
11. PREPARE TRAILSUBGRADE WITH PROPER SOIL TO NCDOT SPECIFICATIONS, COMPACT 'to 98% STANDARD PROCTOR. PERFORM ALL PAVING
pER PLANS AND NCDOT SPECIFICATIONS. COMPLETE CONSTRUCTION.
12. FINE GRADE, LIME, SEED, MULCH, AND STABILIZE ALL DISTURBED AREAS.
13. WHEN THE SITE IS STABILIZED, ANO VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER FORONSITE INSPECTION.
OBTAIN APPROVAL. (919) 560~0735.
14. REMOVE ALL TEMPORARY EROSION CONTROL MEASURES, INCLUDING SILT FENCE, INLET PROTECTION, AND SEDIMENT BASINS. FINE GRADE,
SEED, AND STABILIZE THESE AREAS AS NEEDED. SEED AND STABILIZE ANY REMAINING DISTURBED AREAS.
15. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED,. CONTACT EROSION CONTROL OFFICER AT 919-560-0735 FOR ONSITE
INSPECTION. OBTAIN FINAL APPROVAL.

TOTAL DISTURBED AREA = 2.00 AC.

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@ EXISTING SANITARY MANHOLE
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D EXISTING FlARED END SECTION
E3 EXISTING STORM INLET
III EXISTING ELECTRIC BOX
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e EXISTING POWER POLE
(). EXISTING GAS METER
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STORM DRAINAGE PIPE SCHEDULE

PIPE# INY.IN

INV. OUT PIPE
LENGTH
18'
16'
24'
24'
20'
20'
20'
24'
44'
20'
20'

PIPE
SIZE
is''
24"
30"
24"
18"
12"
12"
12"
24"
15"
15"

GRADE FES

MATERIAL RIP RAP CLASS
IILxWxtl\
. HOPE S'x4' x 12"
HOPE 12' )( 6')( 18"
HOPE 20' x 8' )( 24"
HOPE 20' x S' x 24"
HOPE 12' )( S' )( 24"
HOPE 4' x 3' x 12"
HOPE 4')( 3')( 12"
. HOPE 4' :x 3' x 12"
HOPE 16' x 6' x 24"
HOPE S'xS'x is''
HDPE 9' x 5' x 18"

308

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B
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B

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2
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2
2
2
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2

2.00%
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4,20%
3.50%
9.00%
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2,00%
3;15 %
4.09%
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2.06%

.

1
2
3
4
5
6
7
8
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10
11

282.64
291.34
297.30
301.52
297.20
274.21
273.46
276.94-
284,30
284,98
286.00

282.28
290.20
296.29
300.68
295.40
273,27
273.06
276.28
282.50 .
284.50
285.52

312

310

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BEFORE YOU DIG!
CONTACT ONE-CALL CENTER
1-800-632-4949

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1. OBTAIN GRADING PERMIT. OBTAIN. APPROVED SET OF CONSTRUCTION DRAWINGS. KEEP.A COpy OF BOTH ITEMS
ONSITE THROUGHOUT CONSTRUCTION.
2. CONTACT EROSION CON~OL OFFICER FOR ONSITE PRECONSTRUCTION CONFERENCE. CALL [phone].
3. CLEAR ONLY AS NECESSARY TO INSTALL THE EROSION CONTROL DEVICES SHOWN ON THIS PLAN.
4. INSTALL TEMPORARY CONSTRUCTION ENTRANCE. ALL CONSTRUCTION TRAFFIC MUST EXIT THE PROPERlY AT THIS LOCATION.
5. INSTALL ALL SILT FENCES AND SILT FENCE OUTLETS.
a.INSTALL CROSS DRAINAGE CULVERTS AND ASSOCIATED INLET PROTECTIONS AND RIPRAP DISSIPATORS.
7. INSTALL AND STABILIZE TEMPORARY DIVERSION DITCHES. DIVERSION DITCHES MUST BE SEEDED AND MULCHED WITHIN 3 DAYS OF COMPLETION.
8. CONTACT EROSION CONTROL OFFICER AT [phone] FOR ONSITEINSPECTION.
9. MAINTAIN ALL EROSION CONTROL DEVICES UNTIL INSTRUCTED OTHERWISE. NO DISTURBED AREA IS TO BE LEFT WITHOUT PROTECTIVE COVER
(MULCH OR STRAWrrACK) FOR MORE THAN 21 CALENDAR DAYS.
10. GRADE THE ENTIRE SITE PER THE GRADING PLAN.
11. PREPARE TRAIL SUBGRADE WITH PROPER SOIL TO NCDOT SPECIFICATIONS, COMPACT TO 98% STANDARD PROCTOR. PERFORM ALL PAVING
PER PLANS AND NCDOT SPECIFICATIONS. COMPLETE CONSTRUCTION.
12. FINE GRADE, LIME, SEEP, MULCH, AND STABILIZE ALL DISTURBED AREAS.
13. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER FOR ONSITE INSPECTION.
OBTAIN APPROVAL. [phone]. ..
14. REMOVE ALL TEMPORARY EROSION CONTROL MEASURES, INCLUDING SILT FENCE, INLET PROTECTION, AND SEDIMENT BASINS. FINE GRADE,
SEED, AND STABILIZE THESE AREAS AS NEEDED. SEED AND STABILIZE ANY REMAINING DISTURBED AREAS.
15. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER AT 919-560-0735 FOR ONSITE
INSPECTION. OBTAIN FINAL APPROVAL.

278

290

288

286

284

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280

S75 OR EQUIVALENT .
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT

TOTAL DISTURBED AREA = 2"00 AC.

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. I!BJ EXISTING TRANSFORMER
X EXISTING PHONE MARKER
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~ EXISTING SIGN
<ID EXISTING SANITARY MANHOLE
.' J\Ik. EXISTING WETLANDS BOUNDARY
/) EXISTING FLARED END SECTION
EI EXISTING STORM INLET
.. [[] EXISTING ELECTRIC BOX
--() EXISTING GUY WIRE ANCHOR
XX EXISTING UGHT. POLE
l!!> EXISTING ELECTRIC METER
e EXISTING POWER POLE
~ EXISTING GAS METER..
M EXISTING GAS VALVE
rn EXISTING TELEPHONE BOX
~ EXISTING FIRE HYDRANT
~ EXISTING WATER METER
~ EXISTING WATER VALVE
@ EXISTING GAS MARKER

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PIPE # INV. IN

1
2
3
4
5
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7
8
9
10
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282.64
291.34-
297.30
301.52
297.20
214.27
273.46
276.94
284.30
284.98
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0.35 5.00 7.22 0.45 0 3
0.90 5.00 7.22 0.65 0 3
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RIP RAP CLASS
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S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
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326

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1. OBTAIN GRADING PERMIT. OBTAIN APPROVED SET OF CONSTRUCTION DRAWINGS. KEEP A COPY OF BOTH ITEMS
ONSITE THROUGHOUT CONSTRUCTION..
2. CONTACT EROSION CONTROL OFFICER FORONSITE PRECONSTRUCTION CONFERENCE. CALL [phone].
3. CLEAR ONLY AS NECESSARY TO INSTALL THE EROSION CONTROL DEVICES SHOWN ON THIS PLAN..
4. INSTALL TEMPORARY CONSTRUCTION ENTRANCE. ALL CONSTRUCTION TRAFFIC MUST EXIT THE PROPERTY AT THIS LOCATION.
5. INSTALL ALL SILT FENCES AND SILT FENCE OUTLETS.
6. INSTALL CROSS DRAINAGE CULVERTS AND ASSOCIATED INLET PROTECTIONS AND RIPRAP DISSIPATORS.
7. INSTALL AND STABILIZE TEMPORARY DIVERSION DITCHES. DIVERSION DITCHES MUST BE SEEDED AND MULCHED WITHIN 3 DAYS OF COMPLETION.
8 . CONTACT EROSION CONTROL OFFICER AT [phone] FOR ONSITE INSPECTION.
9. MAINTAIN ALL EROSION CONTROL DEVICES UNTIL INSTRUCTED OTHERWISE. NO DISTURBED AREA IS TO BE LEFT WITHOUT PROTECTIVE COVER
(MULCH OR STRAWrrACK) FOR MORE THAN 21 CALENDAR DAYS.
10. GRADE THE ENTIRE SITE PER THE GRADING PLAN.
11. PREPARE TRAIL SUBGRADEWITH PROPER SOIL TO NCOOT SPECIFICATIONS, COMPACT TO 98% STANDARD PROCTOR. PERFORM ALL PAVING
PER PLANS AND NCDOT SPECIFICATIONS. COMPLETE CONSTRUCTION.
12. FINE GRADE, LIME, SEED, MULCH, AND STABILIZE ALL DISTURBED AREAS.
13. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER FOR ONSITE INSPECTION.
OBTAIN APPROVAL. [phone].
14. REMOVE ALL TEMPORARY EROSION CONTROL MEASURES, INCLUDINGSIL T FENCE,INLETPROTECTION, AND SEDIMENT BASINS. FINE GRADE,
SEED, AND STABILIZE THESE AREAS AS NEEDED. SEED AND STABILIZE ANY REMAINING DISTURBED AREAS.
15. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACTEROSION CONTROL OFFICER AT 919-560-0735 FORONSITE
INSPECTION. OBTAIN FINAL APPROVAL.

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__:)\J 5-FOOT LEVEL 10' DEVELOPMENT ~.' "5)1}f . 7: " ). ../'-. ~ /' . +~ ~
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1.0 ~SF........",;,j[ / .<t-C?)"rf~ __ ."\ // / "" / ~ / . "," . ~____ ~~ SIOES@6.73%+
+ ~~, ./ ,?I"T ,. / / ~ /./' \%0 ----=::::: \Xi .-HANDICAP -290- _..b en
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EXISllNG GRAVEL DRIVE WALKING . STREAM 1.. ~'. / INVOUT ,I I "'-PIPE7: " I ,/. I? ,~_ --...!"" ~ PIPES: ~ I \ ~ . ",0 C.e:1 ~e. BANK SETBACK
PIPE 6' j BANK il / = 273.06/ 20 LF OF 12 ./ ~~<S" ~S 24 LF OF 12" / ~ S6
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STORM DRAINAGE PIPE SCHEDULE X EXISTING PHONE MARKER
INV. OUT PIPE PIPE GRADE FES MATERIAL RIP RAP CLASS CD EXISTING IRRIGA1l0N CONTROL BOX
282.28 lE~:!H S~ 2.00% 2 HOPE ~~:::1~~ A TREY8URN COF~POr-</\TE PARK, LtC .~ EXISTING SIGN
290.20 16' 24" 1.14% 2 HOPE 12'x6'x1S" B PIN: 0845-03-92- 7927 IC3'\
296.29 24' 30" 4,20% 2 HOPE 20'x8'x24" I 08: 003852 ~ EXISTING SANITARY MANHOLE
300.68 24' 24" 3,50 % 2 HOPE 20' x 8' x 24" I' PC: 000261 .1\lk. EXISTING WETlANDS BOUNDARY
295.40 20' 18" 9.00% 2 HOPE 12'x5'x24" I '.
273.27 20' 12" 2.00% 2 HOPE 4')(3')(12" A ZONING; 1L I) EXISTING FlARED END SEC1l0N
273.06 20" 12" 2.00 % 2 HOPE 4')( 3' x 12" A El EXISTING' STORM INlET
276,28 24' 12" 3.15 % 2 HOPE 4' x 3' x 12" A
282.50 44' 24" 4.09% 2 HOPE 16' x 6' x 24" I [[I EXISTING ELECTRIC BOX .
284.50 20' is'' 2,00% 2 HOPE 9'x5'x18" B PLAN VI EW ,.(t EXISTING GUY WIRE ANCHOR
285.52 20' 15" 2.00 % 2 HOPE 9' x 5' x is'' B
x:x EXISTING UGHT POLE
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e EXISTING POWER POLE
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M EXISTING. GAS VAlVE
IT] EXISTING TELEPHONE BOX .
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EROSION CONTROL SEQUENCE

LINING
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT
S75 OR EQUIVALENT.
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT

.

.

300

1. OBTAIN GRADING PERMIT. OBTAIN APPROVED SET OF CONSTRUCTION DRAWINGS. KEEP A COPY OF BOTH ITEMS
ONSlTE THROUGHOUT CONSTRUCTION.
2. CONTACT EROSION CONTROL OFFICER FOR ONSITEPRECONSTRUCTION CONFERENCE. CALL [phone].
3. CLEAR ONLY AS NECESSARY TO INSTALL THE EROSION CONTROL DEVICES SHOWN ON THIS PLAN.
4, INSTALL TEMPORARY CONSTRUCTION ENTRANCE. ALL CONSTRUCTION TRAFFIC MUST EXIT THE PROPERTY AT THIS LOCATION.
5. INSTALL ALL SILT FENCES AND SILT FENCE OU11.ETS.
6. INSTALL CROSS DRAINAGE CULVERTS AND ASSOCIATED INLET PROTECTIONS AND RIPRAP DISSIPATORS.
7. INSTALL ANOSTABILlZE TEMPORARY DIVERSION DITCHES. DIVERSION DITCHES MUST BE SEEDED AND MULCHED WITHIN 3 DAYS OF COMPLETION.
8, CONTACT EROSION CONTROL OFFICER AT [phone] FOR ONSITE INSPECTION.
9. MAINTAIN ALL EROSION CONTROL DEVICES UNTIL INSTRUCTED OTHERWISE. NO DISTURBED AREA IS TO BE LEFT WITHOUT PROTECTIVE COVER
(MULCH OR STRAWITACK) FOR MORE THAN 21 CALENDAR DAYS.
10, GRADE THE ENTIRE SITE PER THE GRADING PLAN.
11. PREPARE TRAIL SUBGRADE WITH PROPER SOIL TO NCDOT SPECIFICATIONS, COMPACT TO 98% STANDARD PROCTOR. PERFORM ALL PAVING
PER PLANS AND NCDOT SPECIFICATIONS. COMPLETE CONSTRUCTION.
12. FINE GRADE, LIME, SEED, MULCH, AND STABILIZE ALL DISTURBED AREAS.
13. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER FOR ONSlTE INSPECTION.
OBTAIN APPROVAL. [phone].
14. REMOVE ALL TEMPORARY EROSION CONTROL MEASURES, INCLUDING SILT FENCE, INLET PROTECTION, AND SEDIMENT BASINS. FINE GRADE,
SEED, AND STABILIZE THESE AREAS AS NEEDED. SEED AND STABILIZE ANY REMAINING DISTURBED AREAS.
15. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER AT 919-560-0735 FOR ONSlTE
INSPECTION. OBTAIN FINAL APPROVAL.

.

.

298

296

294

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~ EXISTING SIGN ....
@ EXISTING. SANITARY MANHOLE
~ EXISTING WETLANDS BOUNDARY
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328

326

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LEGEND:
.. .. .... TEMPORARY DIVERSION DITCH
--0-0-0- TREE PROTECTION FENCE
--SF- SILT FENCE lTREE PROTFENCE
CHECK DAM
PIPE INLET PROTECTION
DROP INLET PROTECTION
RIPRAP DISSIPATORAPRON
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PIN: 0845- 03-- 84...,- 6::330
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TREYBURN CORPORATE P/\f~K, LLC
PIN: 0855-03-03--2690
08:003852

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PLAN VI EW

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.

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EROSION CONTROL SEQUENCE

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LINING
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT
S75 OR EQUIVALENT
S750R EQUIVALENT
S75 OR EQUIVALENT
P300 OR EQUIVALENT

,

1. OBTAIN GRADING PERMIT. OBTAIN APPROVED SET OF CONSTRUCTION DRAWINGS; KEEP A COPY OF BOTH ITEMS
ONSITE THROUGHOUT CONSTRUCTION.
2. CONTACT EROSION CONTROL OFFICER FOR ONSITE PRECONSTRUCTION CONFERENCE. CALL [phone].
3. CLEARONL YAS NECESSARY TO INSTALL THE EROSION CONTROL DEVICES SHOWN ON THIS PLAN.
4. INSTALL TEMPORARY CONSTRUCTION ENTRANCE. ALL CONSTRUCTION TRAFFIC MUST EXIT THE PROPERTY AT THIS LOCATION.
5. INSTALL ALL SIL" FENCES AND SILT FENCE OUTLETS.
6. INSTALL CROSS DRAINAGE CULVERTS AND ASSOCIATED INLET PROTECTIONS ANDRIPRAP DISSIPATORS;
7. INSTALL AND STABILIZE TEMPORARY DIVERSION DITCHES. DIVERSION DITCHES MUST BE SEEDED AND MULCHED WITHIN 3 DAYS OF COMPLETION.
S . CONTACT EROSION CONTROL OFFICERAT [phone] FOR ONSITE INSPECTION.
9. MAINTAIN ALL EROSION CONTROL DEVICES UNTIL INSTRUCTED OTHERWISE. NO DISTURBED AREA IS TO BE LEFT WITHOUT PROTECTIVE COVER
(MULCH OR STRAWITACK) FOR MORE THAN 21 CALENDAR DAYS.
10. GRADE THE ENTIRE SITE PER THE GRADING PLAN.
11. PREPARE TRAIL SUBGRADE WITH PROPER SOIL TO NCOOT SPECIFICATIONS, COMPACT TO 98% STANDARD PROCTOR.. PERFORM ALL PAVING
PER PLANS AND NCDOT SPECiFICATIONS. . COMPLETE CONSTRUCTION.
12. FINE GRADE, LIME, SEED, MULCH, AND STABILIZE ALL DISTURBED AREAS.
13. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER FOR ONSITE INSPECTION.
OBTAIN APPROVAL. [phone]. .
14. REMOVEALL.TEMPORARY EROSION CONTROL MEASURES, INCLUDING SILT FENCE, INLET PROTECTION, AND SEDIMENT BASINS. FINE GRADE,
SEED, AND STABILIZE THESE AREAS AS NEEDED. SEED AND STABILIZE ANY REMAINING DISTURBED AREAS,
15. WHEN THE SITE IS STABILIZED, AND VEGETATION IS ESTABLISHED, CONTACT EROSION CONTROL OFFICER AT 919-560-0735 FOR ONSITE
INSPECTION. OBTAIN FINAL APPROVAL

.

TOTAL DISTURBED AREA = 2.00 AC.

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PRELIMINARY PROFILE
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67+00

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LENDWALKING TRAIL
(POTENTIAL STUB OUT FOR ADJACENT
LAND OWNER TO TIE IN)

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BEFORE YOU DIG!
CONTACT ONE-CALL CENTER
1-800-632-4949

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PROJECT NO.

06-082

SHEET NO.

6

.

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-
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SlEEL . POST
WOVEN WIRE FABRIC
WARNING SIGN
SILT FENCE GEOTEXllLEFABRIC

I

I I
TREE PROTECTION AREA
DO NOT ENTER
ZONA P",ult.I,,;IORA
PARA LOS ARBOLES
PROHIBIDO ENTRAR
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MIN. 12-1/2 GA.
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EXTEND WIRE 6" MIN. INTO TRENCH
AND ANCHOR. SKIRT AS
DIREClED BY ENGINEER ·

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. DO NOT ENTER
~ -ZONA PROTECTORA 18"
~ PARA LOS ARBOLES \.
~ PROHIBIDO ENTRAR ---L-

SIDE VIEW

... ..

FRONT VIEW

-USE SILT FENCE ONLY WHEN DRAINAGE AREA
DOES NOT EXCEED 1/4 ACRE AND NEVER IN
.w:uEi. AREAS OF' CONCENTRATED FLOW
-END OF' SIL TF'ENCE NEEDS TO BE TURNED UPHILL.

* FOR REPAIR OF SILT
FENCEF'AILURES, USE
No. 57 WASHED STONE.
F'ORANCHOR WHENSLT
FENCE IS PROTECTING
CATCH BASIN.

.
REVISIONS .
DATE DESCRIPll0N

NOTES:

WARNINGS(GNS TO BE MADE OF'DURABlE, WEATHERPROOF MA1CRIAL. WARNING SIGN DETAIL
LETTE:RS. TO BE J"HIGH MINIMUM, . CLEARLY LEGIBLE AND SPACED AS DETAILED.
SIGNS .SHALL BE PLACED AT 7S' MAXIMUM IN1CRVALS.
PLACE A SlGN.AT EACH END OF' UNEAR 1REE PR01ECl1ON AND75' ON CENTER THEREAFTER.
ATTACH SlGNSSECURCLY TO FENCE POSTS AND FABRIC.__
MAINTAIN 1REE PR01ECl1ON FENCE THROUGHOUT.DURAl1ON OF PROJECT.
ADDI1IONAL SIGNS MAY BE REQUIRED BY CITY OF' DURHAMINSPECl10NS DEPARTMENT BASED .ON ACTUAL F1aD CONDI1IONS.
PLACE A SIGN AT EACH END OF UNEAR .1REE PR01ECl1ON AND.. 75' ON CENTER. THEREAFTER.

I

... .....

TEMPORARY SILT FENCE

--c

....

STANDARD

&

TREE PROTECTION

FENCE

..

...

.

~
LLL ...-.
LLL LLL~
_~LL LLLLLLLL~
~LL LLLLLLLLLLL~
. LL ~LLLLLLELLLLLL
LLLLLLLLLj-L
. LL!-LL
'x~

. .r INSTALLROCK OUTLET AT LOW POINTS ALONG
I ~~FENC~ AND W LOCAOON8 SHOWN ON THE

-l:tLLt~
LLLLLLLLLt.:l:::'t::-.
LLLLLLLLLLLL~
~~~LLLLLLLLLLLLL --
~LLLLLLLLLLLLLLLLLf~
- ~LLLLLLLLLLL..LL LLL
~ ~. LLLLI:I:I:I:I:I: 1:1:1:
LL~

SILT FENCE WITHOUT ROCK OUTLETS HAS A CAPACITY
OF 1/4 DRAINAGE ACRE PER 100LF FENCE.

SILT FENCE WITH ROCK OUTLETS AT 100' SPACING HAS
A CAPACITY OF 1/2 DRAINAGE ACRE PER100LF FENCE.

I
~...

STRUCTURAL STONE SHALL BE (CLASS "B") STONE
FOR EROSION CONTROL PURPOSES,

SEDIMENT CONTROL STONE SHALL BE NO.5 OR NO.57
NCDOT WASHED STONE.

I

SEDIMENT CONTROL STONE
EXCAVATE SMAI,.L PIT
IN FRONT OF ROCK GUTL!;T. ..

SEDIMENT CONTROL STONE
7S1LTFENCE

SILT FENCEl 6' SILT FENCEl

l:l:l:l:l:tl::El:ttl:l: 3' MAX. ttl:l:l:l:l:l:l:l:l:H:
I:tl:l:l:l:I:l:l:tl:l:1: 18" MIN. I:tl:tl:tl:l:ttl:l:l:
L.L.L.LLL~LL.LLLL. ~Ll..L.L.LLLLLLLLl:
LLLLLL.L LLLLLLLLLLL
LLLLLLL LLLLLLLI:LL
LLLLLLL LLLLL LL
:i=j:j:~!-LL LL.L!-!-!-

t;
o
a..

t;
o
a..

...

18~ MIN.

12"+/.1

.# /:

~. '
. .3'MAX
--.. ~ T""'lIN
,,- ___ -rr.l~ I

I-l
12"+/-

STRUCTURAL STONE

.. · REVISIONS ...
DATE DESCRIPll0N

..

.

.
.

TEMPORARY SILT FENCE ROCK OUTLET

4.

.

.

.

2'MIN t
t. . COMPACTED .'

-.

2' MIN

1

STEEP CUT OR FILL. SL.OPE

. /....~... "<='. . 7--.- ~

- /.~~/-'----
~ . ~ 2: 1 SLOPE (MAX)

CROSS SECTION

- STABIUZE DIVERSION DITCH
WITH TEMPORARY SEEDING
AND EROSION CONTROL
NETllNG

POSITIVE GRADE 1.0% MAX.

SIDE SLOPES
2 : 1 (MAXo)

UPSLOPE TOE~ .
~////////////////////////77777/

.

,~"'''''''''''''''' '" "'''' ",,","'''' "'''''''''' '" '" '" '" '" """"" '"

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STEEP CUT OR FILL SLOPE

REVISIONS.
DATE DESCRIPTION

.

PLAN VIEW

.

.... ...

.

...

.

.

DIVERSION 01 TCH

.

.

GRADE

--c-

u

...

'lo.,~ . \ III II! ,/,i.F
~ ~\\\ M"' . / '~RAP_
---- ::::- '2~~ M ..:..:
~ ..;-..
~ "'..r:.~.:..'..: ~"'.' . . ... .."'..:'
~ ~'E (::::::ii;',~~iii;~;'lj~ WA ST<><E " '""" x ~ ~~ ..~
~ ~//liiIiT\\\'" "'~

/ II! / IpERSPECTIVE VIEW
NO SCALE

AREAS TO BE DlSlURBED ,.SEDlMENT STORAGE ~PlPE INVERT
(CUT. ALL, ETC')7 ~r FLOOD STORAGE ZONE LRIP RAP HEADWALL
, ( l' 2' ....4'
~ \ rt=1 ........ NAlURAL
. ub. __. GROUND
Fl.. ~5 1,.0'. FLOW .
Olt _ 1.5 .11ifi!lii ~.
.wm:.. ~.LClASS 1 RIP-RAP ALlER FABRIC
DIMENSIONS ARE
MINIMUM ACCEPTABLE 157 WASHED SlONE
UNLESS. OTHERWISE MAX. SEDIMENT DEPTH(CLEAN OUT POIN1)
NOlED.

.wm:..

GRAVEl. & RIP RAP ALlER BERM BASIN DETAIL
IS DESIGNED 10 PROlECT EXlSllNG PIPE INVERTS
THAT DRAIN 10 ACRES OR LESS.

1

REVISIONS ..
DESCRIPll0N

SECTION THRU BASIN. FILTER AND CULVERT PIPE
NO SCALE

DATE

.

(EXISTING PIPE INVERTS)
GRAVEL & RIP RAP HORSESHOE INLET BASIN

.

1.) CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP
OVER ADVERSE SOIL CONDITIONS. IF AVAILABLE.
2.) RIP THE ENTIRE AREA TO 6 INCHES DEPTH.
3.) REMOVE ALL LOSE ROCK. ROOTS, AND OTHER OBSTRUCll0NS
LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM.
4.) APPLY AGRICULTURAL UME. FERllUZER. AND UNIFORMLY AND MIX
WITH SOIL (SEE BELOW*).
5.) CONllNUE TILLAGE UNTIL A WELL-PULVERIZED. FIRM REASONABLY
UNIFORM SEEDBED IS PREPARED
6.) SEED ON A FRESHLY PREPARED SEEDBED AND SEED LIGHTLY WITH
SEEDING EQUIPMENT OR CULllPACK
7.) MULCH IMMEDIATELY AFTER SEEDING AND
8.) INSPECT ALL SEEDED AREAS AND MAKE NECESSARY RESEEDINGS
WITHIN THE. PLANllNG SEASON, IF POSSIBLE. STAND SHOULD BE
OVER 60% DAMAGED. REESTABLISH ORIGINAL LIME, FERTILIZER AND
SEEDING RATES.
9.) CONSULT CONSERVATION INSPECTOR ON MAINTENANCE AND
FERTILlZA1l0N AFTER. PERMANENT COVER IS

* APPLY:
AGRICULTURAL LIMESTONE - 2 TONS/AC (3 TONS/AC IN CLAY SOILS)
FERTILIZER - 1 ;000 Ibs. / ACRE -10-10-10
SUPERPHOSPHATE- 500 Ibs> I ACRE -20% ANALYSIS
MULCH ....2 TONS/AC (5000 LBS/ACFOR STEEP SLOPES) - SMALL
GRAIN STRAW .
ANOTHER - ASPHALT EMULSION <<) 300 GALS./ ACRE

PERMANENT SEEDING PIEDMONT AREA
.

DATE
Aug 15 - Nov 01
Nov 01 .... Mar 01

TYPE
Tall Fescue
Tall Fescue
and Abruzzi Rye
Toll Fescue
Hulled Common Bermudagrass
Tall Fescue
and ***Browntop Millet
or ***Sorghum-Sudan Hybrids

Mar 01 - Apr 15
Apr 15 - Jun 30
Jul 01 - Aug15

TEMPORARY SEEDING -
DATE TYPE
Aug 15 - Dec 30 Rye (Groin)
Jon 01 - May 01 Rye (Groin)
and Kobe Lespedeza
May 01 - Aug 15 German Millet

PIEDMONT AREA:
pLANllNG RATE
120 Ibs/acre
120 Ibslacre
50 Ibs/ acre
40 Ibs/ acre

SEEDBED PREPARATION

...

PLANTING RATE
300 Ibs/acre
300 Ibs/acre
25 Ibs/acre
300 Ibs/acre
25 Ibs/ acre
120 Ibs/ acre
35 Ibs/acre
30 Ibslacre

Consult Conservation Engineer or Soli Conservation Service for additional Information
concemingaltematives for vegetation of bare areas. The above planting rates are those
which do well under local conditions; other seeding rate combinations are possible.
-Temporary - Reseed according to optimum season for desired permanent vegetation. Do
not allow temporary cover to grow over 12" in height before mowing, otherwise fescue may
be shaded out.

MAINTENANCE:
NEW SEEDLINGS SHOULD BE INSPECTED FREQUENTLY AND MAINTENANCE
PERFORMED AS NEEDED. IF RILLS ANG GULLIES DEVELOP. THEY MUST BE
FILLED, RE-SEEDED, AND MULCHED AS SOON AS POSSIBLE. DIVERSIONS
MAY BE NEEDED UNllL NEW PLANTS TAKE HOLD.
DAMAGE TO VEGETATION FROM DISEASE, INSECTS. TRAFFIC. ETC.. CAN
OCCUR AT ANY TIME.HERBICIDES. AND REGULAR MOWING MAY BE NEEDED
TO CONTROL WEEDS. DUST AND SPRAYS MAY BE. NEEDED TO CONTROL
INSECTS.
WEEK OR DAMAGED SPOTS MUST BE RELlMED. FERllL1ZED. MULCHED. AND
RESEEDED AS PROMPTLY. AS POSSIBLE. .

SEEDING SCHEDULE

TEMPORARY AND PERMANENT SEEDING SPECIFICATIONS

.

7

5

.

-

TOP ELEVAll0N OF STORM WATER

~

"7'-;f I '\.. 0.5'-1'
#57 WASHED .{jY 17~ ~MAX ><
. ...{.;:::1 'II iC 1)..' .
STONE ~r r ~:::lY 7 1 3!
-4.,}~t ~ LJ-"\. YArn
4'-"" .., Y" r ... ~

!f~LASS 1R~AP J '-~LTER FABRIC
VARIES

DESIGN OF SPILLWAYS

DRAINAGE AREA WEIR.. LENGTH 1
(ACRES) (FT)
1 4.0
2 6.0
3 8.0
4 10:0
5 12.0
1 DIMENSIONS SHOWN ARE MINIMUM

EXISTING SLOPE

SIDE VIEW

EXISTING SLOPES ~. . . . .

..~~
~ VARIES d <~

~." . 16"" ~.~::..::lr'
...~ ".'.;,," - ,,,.:'. ,"
(/) i!t:: . ~ .::,~,~~ .','! ::.:.::...... ;--: t.. WEIR.:~..,::Jl: ~'~..,::::..::"( ~..;.:." ..
~ .. ..~D~.::~.~~::.~':.~.:...l.. '. ,.....,:.. i::.':.I....; '.,'~: '!>=O~Q KEYED RIP RAP
~ . :~~~:~~~;.;~~~~~~::~..::.~::.:..~::~:~~:~.(; "\~~~~~&r
.....:.:.:

tiQlf.;..
HEIGHT & WIDTH DETERMINED BY
EXISTING TOPOGRAPHY AND
SEDIMENT STORAGE REQUIRED.

KEY RIP RAP INTO THE DAM
FOR STABILIZATION.

#57 WASHED STONE

-'IF'

FRONT VIEW

-
""--- / ""\.

-
'-- / ""\.
eXISTING SLOPE ~ ~
STEP SEQUENCE

REVISIONS
DATE DESCRIPll0N .
10/88 NOlE ADDI110N . . M.H.D.
4/96 ADD SPILLWAY CHART G.M.A.

....

2

CHECK DAM

.

.

50' . MIN.
BUT SUFFICIENT TO KEEP
SEDIMENT ON SITE

NOTES:
1. PUT SILT FENCE OR TREE PROTECTION FENCE UP
TO ENSURE CONSTRUCTION ENTRANCE IS USED.

2. IF CONSTRUCll0N ON THE SITES ARE SUCH THAT
THE MUD IS NOT REMOVED BY THE VEHICLE TRAVEL-
ING . OVER THE STONE, THEN THE llRES OF. THE
VEHICLES. MUST BE WASHED BEFORE ENTERING THE
PUBLIC ROAD.

EXISllNG
ROADWAY

~;~Eh}~~} ~~~:~~~~;;~i~;~~~:~;:~~:.;.:~:/;~t{~~;~S~S;~:.f.~'~~

..:...:t')'.:':'~"2"-3" STONE TO BE USED.'..:.......;.
"... .,' "'u"~'''.' ,\ .toof
.... ..:.:t......;:.dSURGE STONE OR RAILROAD:'::,;
'. ......,.. .' BALLAST)-" ,. .' . . .... ~. ....,.. .. .
:.... ..:: ....... .. ..... .").~,,,"""'.""':. "". '"", ..~~

f~~~j~1~;~~~{~~~~51j~i~~};i;

3. IF A PROJECT CONTINUES TO PULL MUD AND DEBRIS
ON TO THE PUBLIC ROAD, THE GOVERNING AUTHORITY
WILL CLEAN THE AREA AND INVOICE THE FINANCIALLY
RESPONSIBLE PERSON AS INDICATED ON THE FINANCIAL
RESPONSIBILITY FORM.
NEW CONSTRUCll0N ~

25' OR WIDTH OF
PROPOSED STREET,
WHICHEVER IS
GREATER.

PLAN
EXISTING ROADWAY

I 35' MIN. t'i"~:;~:..:' "~I
'~.'::.. ..' ~ ::.~::,.:,:<. ;:':i" ..~ .r,~,< ",;.> ,':: :.,:,",<?; ,<
~w \FABRIC UN;ER STONE "
CROSS SECTION

12" MIN.

6" MIN.=

DATE

REVISIONS
DESCRIPTION

.

..

.

CONSTRUCTION ENTRANCE

c:::J

BEFORE YOU DIG!
CONTACT ONE-CALL CENTER
1-800-632-4949

.

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SHEET NO.

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PROJECT NO.

IMPACT #2
SCALE: 1" = 20'

IMPACT #3
SCALE: 1" = 20'

06-082

SHEET NO.

IMPACT #4
SCALE: 1"= 20'

8