20061839 Ver 1_401 Application_20061106

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20061839
Office Use Only: ~ Form version May 2002
USACE Action ID No. DWQ No.
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
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Processing
1. Check all of the approval(s) requested for this pro'ect:
Section 404 Permit
Section 10 Permit
401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NW 13
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ^
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ^
~~~~
Applicant Information
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1. Owner/Applicant Information
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Riparian or Watershed Buffer Rules
Isolated Wetland Permit from DWQ
~;,~v ~ 7 ~nQ6
Mailing Address: City of Raleigh Public Works Departm'"Ner ~p °~""'""'"~ c"
222 West Hargett Street
P.O. Box 590
Raleigh, North Carolina 27602
Telephone Number: 919-890-3030 Fax Number: 919-890-3832
E-mail Address: carl.dawson(a,ci.raleigh.nc.us
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: N/A
Company Affiliation: ••~'
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page 5 of 13

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III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USAGE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Stream bank erosion repair located on two adjacent properties. The two
properties are located at 2720 & 2724 Dahlgreen Road, Raleigh NC-27615.
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
Property Identification Number (Tax PIN): 2724 Dahlgreen Road PIN: 1728-13-2516, and
2720 Dahlgreen Road PIN: 1728-13-2408
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): 2724 Dahlgreen is Lot 145, Heathrow
Durant Trace SE96-11, and 2720 Dahlgreen is Lot 146, Heathrow Durant Trace SE96-11.
Directions to site (include road numbers, landmarks, etc.): From downtown Raleigh, take
Falls of Neuse Road north to Durant Road. Take a right on Durant Road and another right
onto Cub Trail. Take the second right onto Dahlgreen and go approximately one-half of a
mile. 2724 Dahlgreen is the second house on the left after Dakins Court and 2720 is the
third house on the left.
5. Site coordinates, if available (UTM or Lat/Long): 35°54'08"/78°35'26"
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): 2724 Dahlgreen is 0.37 acres and 2720 Dahlgreen is 0.34 acres.
7. Nearest body of water (stream/river/sound/ocean/lake): The stream on the project site is an
unnamed tributary to Perry Creek. Falls Lake is approximately one mile north of the site,
and the lake at Durant Nature Park is approximately one-half mile southeast of the project
site.
Page 6 of 13

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8. River Basin: Neuse River Basin
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The general land use is single-family residential in the
developed Heathrow Subdivision in Durant Trace in north Raleigh This subdivision is off of
Durant Road. a major thoroughfare between Falls of Neuse Road and Capital Boulevazd
The proiect begins behind 2724 Dahlgreen Road. iust upstream of a bridge that has fallen
into the channel and approximately 490 feet downstream of the confluence of two streams
One of the streams flows behind the houses on Dahlgreen Road and begins more than a mile
upstream of the confluence near Falls of Neuse Road and the other stream begins at the
intersection of Durant Road and Cub Trail, flows beside Durant Road southeast for
approximately one-half mile before turning south for almost a third of a mile before
converging with the first stream. approximately 490 feet upstream of the project limits The
stream repair area consists of approximately 100 linear feet of stream that is currently
experiencing erosion of the banks, mainly on the western side of the stream The western
side has little to no wood vegetation along the banks and is currently mowed up to the bank
This has contributed to the banks falling in at some locations. The channel has deepened and
widened producing a lazge volume of sediment into the stream system Point bazs aze also
forming due to the increased sediment. The eastern side of the stream has woody ve etation
and has more stable banks. This stream is perennial with a low base flow
10. Describe the overall project in detail, including the type of equipment to be used: The
proiect will consist of stream bank stabilization for approximately 100 feet The existing
stream profile will be utilized in the design and the bankfull channel dimensions will be
adiusted to provide for low and bankfull flows. A bankfull bench with a maximum width of
eight (8) feet will be excavated on the eastern side to alleviate presswe on the western bank
Providing a bankfull bench will grant storm flows the opportunity to expand reducing_the
shear stress on the terrace slopes. The bench will begin about 70 feet downstream of the
proiect beginning and go for about 40 feet Along the western bank where more of the
de8radation has taken place the top of the bank will be graded back from the stream between
six (6) and ten (10) feet. These terrace slopes will be laid back to a 2H• 1 V minimum slope
A rock toe (Class IIrip-rap) is proposed on the bankfull channel and terrace toe to further
stabilize the channel. The bankfull bench will be covered with an erosion control blanket and
planted with riparian grasses. The terrace slopes will also be covered with an erosion control
blanket. a riparian seed mix. and will be planted with w •^vegetation Plants will be
planted in the buffer, at the top of the terrace within zone 1 to establish a woody stream
buffer. It is anticipated that a track hoe dump truck, rubber tire loader and a small
compaction/vibration unit will be used to construct this project If there is water in the
channel it will need to be pumped out for the construction
Page 7 of 13

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11. Explain the purpose of the proposed work: The purgose of the „project is to stabilize the
stream banks that are currently eroding_to prevent further damage and sediment input into the
stream. Additional goals of the proiect aze ~o improve the channel eroded dimensions and
provide for a better vegetative buffer on the stream and terrace banks.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable}. If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
N/A
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intemuttent and perennial) must be shown on a
delineation map, whether or not impacts aze proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet. •~~
Provide a written description of the proposed impacts: The proposed project will impact
approximately 100 lineaz feet of stream channel. The impacts will consist of bankfull bench
and terrace bank construction, vegetative stabilization and the placement of rip-rap at the toe
of the bankfull channel and terrace slope
Page 8 of 13

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2. Individually list wetland impacts below:
Wetland Impact
Site Number
indicate on ma
Type of Impact* Area of
Impact
acres Located within
100-year Floodplain**
es/no Distance to
Nearest Stream
linear feet
Type of Wetland***
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavatioq flooding, ditchingldrainage, etc. For dams, separately list impacts due to both stnuKure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Maaagemeat Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodphun maps. Maps are available through the FEMA Map Service Center at 1-800.358-9616, or
online at ham://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property: N/A
Total area of wetland impact proposed: 0
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact Length of Average Width Perennial or
Site Number Type of Impact* Impact Stream Name** of Stream Intermittent?
indicate on ma linear feet Before Im leases eci
1 Stream channel
reconstruction 100 UT to Perry Creek 5 - 12 feet Perennial

* List each imp~t separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separatety list impacts due to both structure and floodinp~, relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavatioq ditching/straightening, etc. If stream relocation is
proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included.
•' Stream names can be found on USGS topographic maps. ff a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800.358-9616, or online at
www.usts.eov. Several Internet sites also allow duect download and printing of USGS maps (e.g., www.t~nozone.com
www.mgpquest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 100 feet
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U. S.) below:
Open Water Impact

Site Number
indicate on ma
*
Type of Impact Area of

Impact
acres
Name of Waterbody

(if applicable) * ~~, Type of Waterbody

(lake, pond, estuary, sound,
ba etc.
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavatioq dredging,
flooding, drainage, bulkheads, etc.
Page 9 of 13

~ ~
S. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this a lication.
Pond to be created in (check all that apply): ^ uplands stream ^ wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw down valve or spillway, etc.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): N/A
Size of watershed draining to pond: N/A Expected pond surface area: N/A
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce unpacts.
This stream repair is required to stop the progressin stream bank erosion in this area Currently
the stream bank on the western side has eroded to being approximately 10 feet from the fence
line of the property owner at 2724 Dahlareen Road The repairs are needed to stabilize a channel
that has eroded to dimensions beyond stable conditions The repair impact to the channel will
create a stable bankfull channel bankfull bench. and sloped 2H• 1 V terrace banks The use of
rock materials is neces in this repair to fwther stabilize the toe of the channel so it does not
erode back toward the bank in the future as the western side of the bank in approaching the
fence lme of the properiv owner. The use of rock materials will be minimized to the toe of the
slope on the western side of the stream.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and lwfodification of Nationwide
Permits, published in the Federal Register on March 9, 2000, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
Page 10 of 13

and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similaz
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
http: //h2o. enr.state. nc. us/ncwetlands/strmQide. html.
Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/lineaz feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), •and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
N/A
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regazding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information:
Amount of stream mitigation requested (lineaz feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): N/A
Amount ofNon-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federaVstate) funds or the use of public
(federaUstate) land?
Yes ^ No
....
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ^ No
Page 11 of 13

If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ^ No ^
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify Meuse River )?
Yes ~ No ^ If you answered "yes", provide the following information:
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(s uare feet) Multiplier Required
Miti ation
I 3,000 3
2 2,000 1.5
Total 5,000
cone t extends out su ieet perpenoicular trom near bank of channel; Gone 2 extends an
additional 20 feet from the edge of Zone 1.
The buffer impacts will only be temporary during the construction phase of the project adjacent
to the stream. Currently the buffer area in zone one has no vegetation or only grass Zone 1 will
be enhanced with the planting of riparian seed mix and wood vegetation on the top of the
bankfull bench, terrace slopes, and terrace top with this repair project. Zone 2 which is currently
grasses, will be returned to its original condition if impacted by construction equipment
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration /Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or .0260.
N/A
Page 12 of 13

XI. Stormwater (required by DWQ)
Describe impervious acreage (both existing and proposed) versus total acreage on the site.
Discuss stormwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
N/A
XIL Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
N/A
XIIL Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ^ No
Is this anafter-the-fact permit application?
Yes ^ No
XIV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
ApplicantlAgent's Sign
(Agent's signature is valid only
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an authorization letter from the applicant is provided.)
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Page 13 of 13

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Project Location Map
Scale 1" = 3333.33 feet
Ward Consulting Engineers, P.C. 27?~ & 27?0 Dahlgreen tZoad

~I Project Site on Wake County Soil Survey (top map)
and Wake County IM APS (lower map)

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Looking upstream from middle portion of project

Looking downstream at a repair area in the middle of the project
Looking downstream at towards the end of the project

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LEGEND
NGTES~ a
~---- APPRGX, LIMIT GF PL ---------- PRGPGSED TGP GF BANK ~
TREE - - - PRUPOSED TGE L CGNTRACTGR TU INSTALL ERGSIGN ~ o
.~ ~.~'~~' ' CUNCRETE DRIVE OR WALKWAY --o---~ FENCE CONTRUL MATTING WITH NUTCHED W
- ---- EXISTING TUP GF BANK ----~--- SANITARY SEWER WGGDEN STAKES PER MANUFACTURERS Z ~ ~ ~
-- -- - EXISTING TUE GF BANK CLASS II RIP RAP TUE RECGMMENDATIGNS SPACING FGR ALL ,,.., ~
~jj~ CUT ~ STUMP SLGPED/GRADED AREAS, Z ~a z
~~® ADDED RIFFLE MATERIAL SILT FENCE 2. ERGSIDN CGNTRGL MATTING TD BE W ~
C-~ RIFFLE 2' CGNTUURS NORTH AMERICAN GREEN C-125 BN UR C7 ~ ~ ~
~~-~, ~ REMOVED RIFFLE MATERIAL (CITY GF RALEIGH GIS) APPRGVED EQUAL, Z g
~.. r
~ ~ ''~. 3. CGNTRACTGR TU FINE GRADE, SEED , a ~
W ~`' AND STRAW ANY DISTURBED LAWN ~ ~ a
~ \~~~''~.. AREAS, LGGSEN DISTURBED AREAS TG Z ~
~ \. ~ ~''~.. A DEPTH GF 3 INCHES PRIGR TG
0. REM VE X ST N ~.. 0
~ BRIDGE AND PLACE IN ~~.. SEEDING TG PRGMGTE GRGWTH. U ~~
\ = YARD AS DIRECTED ~~'~•• _ PRGPGSED RECGNSTRUCTED TGE
~-. 4. STREAM BANK TG BE PLANTED WITH A
~~~~ ` ~ BY GWNER EXISTING TREE STUM ~-~~, MIX GF GRCHARD GRASS, HGP SEDGE,
C~, " TG BE REMOVED T `~~ r AND RICE CUT GRASS OTHER RIPARIAN
W SEED MIXED MAY BE SUBSTITUTED UPGN
~ ~`•.
PRGPGSE TDB ~'' ., ~ APPRGVAL BY THE CITY, TEMPGRARY •
~ ~~'' ..`, ERGSIGN CGNTRGL GRASSES WILL ALSG ~`v
'~ ~ BE REQUIRED FOR IMMEDIATE GRGWTH, ,
GS'o- ( Z TEMPGRARY GRASS TYPE WILL BE ~'
<< ~ W DEPENDENT GN THE SEASGN,
f ~I`~F(~, I 5. RGGTED PLANT PLUGS TG BE PLANTED cn
~ GN 3 FGGT CENTERS GN ALL CUT AND
FILL STREAM BANKS, CGNTRACTGR TG
PLANT A VARIETY GF SPECIES, TGTAL ~
~ - ~ NUMBER GF PLANTS = 177, ACCEPTABLE
,, ~~ RIFF SPECIES ARE LISTED BELGW~ W Z
'~R MGVE EXISTI G ~' PGSSGMHAW VIBURNAM ~ ~ J
YELLGWRGGT ~ W O
8" ~~~1 "HARD GDS ~ , Q
~ ~, WINTERBERRY Z ~
`~''~~.,, ~ ELDERBERRY W O
' ., , ~ ~f~ ~ VIRGINIA WILLOW ~ a =
PRGPGSED CLA S~'~ \~ ~ STRAWBERRY BUSH -PLANT GN ~ ~ F.
RIP RAP TGE ', \ F: J - UPPER TERRACE BANK GNLY, J . CC
SEE CROSS SE TIGNS'~., ~~ -- ~ ,:'••• GTHER SPECIES AVAILABLE AT THE = J O
TIME GF PLANTING MAY BE APPRGVED Q W Z
~`~ BY THE CITY AS REQUESTED BY THE ~ Z
I
~~~ ~~ CGNTRACTGR, p Q (~
~ r2 W
Q ~ ~, / N -~
~+ 10 ~ 10, N~,' U
~ ,.~ ~ p
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b ~' N 0
,,,,NMUrrr~r'rr S °' ~ + 5' MINIMUM J1• ~ U ~ N ~ }
,,A~~O••~N.N..ry ~ II .• ~ ~ + 0 f 1
c 10' FLGGDPLAIN ~ Sta 0+87 •• # ~ V
• c ' ~ •~ A P L EXISTI G TREE STUMP ~, d 0.
,, „EAl Uc, p //~GU~ IN LGCATIGN TG BE EMMVED ~ ~
's ! 13344 ~ ~ REMGVE ISTING WGGDEN HUB ~~~ ~~ 2ooe
i ~~''~, ~f N~-~~' •~ a`~ 6' WILLOW ELEV, ASSUMED EMGVE RIFF ` _ ./°wo. ru-~~:
ty~l~. •........ Q~~. 100 ATERIAI:S Dahlgrun m
''rrrrlYNNE ~~~`~~ P GSED TGB EXTE D ~ m "~~~ ~ ~
r """" ~`~t RIFFLE MATERI ( 10 5 0 10
UPSTREAM ~ '•'10~
2724 DAHLGREEN RD ~ 2420 DAHLGREEN RD SCALE IN FEET SHEET 2 of 2

~ ` '~ 'DAVID G, BEN~L~GE
9204 DAKI~JS CT .-~'''
MADS & KATIE SMITH ' PIN # 172$131699 ~-,~--~'"-~
-
~ '9200 I~AKINS CT ~ _ ,,,pr--~"'"'~--
`% ~ 'PIN # 172813118 ' ~--~,..--•-~ -~ EXI ING BRIDGE
•`~' -•~,,-~•-~-'~- FENCE FA EN IN CHANN`I
-~
...
• ~~ < <;~ • < ,~ • : • u ~" WILL
d • ~ ~' ''
', ,
• < MARK S, & THER SA C, OLDHAM
' $ 2724 DAHLGREE '~RD
1 FEAR PIN # 17281325 6 ~ N
A
STD
° ONSTRUCTI N
~ ~' ~ 7" ' ENTRANCE BL CKWALL DECK
w ~' .. PEAR
POWER BOX ~ STUMP '.
~ I~' ~' WM ' AC AIR HANDLER FENCE
_ ~• BROA B. ' ('~
A ~ M- ------------' ' ~12" OAK ~23" APLE
-~ -----
N
' ' PEAR AIR HANDLER ~
HYDRANGEA 0 qC " HpLLY ~,~
~r 8" MAPLE
~~`~. "OAK ((''''~~ ,
< P ANTER DECK ~.JPIN
", 6" PINE
REMOVE 4' HILLY TAGING 1
`~~ ~ • , , <~ ,~• , . CONSTRUCTI~NEACCESS AREA STUMP
. ~ ~ ,.
+ < ~ ,,,~,, ~ ~• ~ ~ c. :~ DENNIS & LAURA GRAF
,, <
'' ` ' ''' ' ' ~ ~ ' '`' ~' • ` 2720 DAHLGREEN RD '
`~" ,',` , 'w ~~ ~~ ~ , ~ ~ ~ ,+ PIN # 17281 2408
•., ,,•<, a~.,<~. ,.~,
~~ ~ ~•E~,
,;~,•
•. ' t
~••`• ' •~ ~1:
' POWER BOX •'~•-~•,
, .' ~--`
.,`-•`
•.
KENNETH & L RRAINE MURp ~•`~ Q~~~..••~7,~-
2716 EN RD •c" ~,.4~~ESS/ ~'~~9 yrw' ~'-`-f
, .
PIN 17281 1480 - ~ ~~,f ~ -
~ 13344
a
w,~ ~~ ~~N~~ ~~~a ~nQ i
'''a V(VNNE T~~,~,.
~rehrrurNN~

/' 41f~"y
~/
LEGEND
~---- APPROX, LIMIT OF PL
TREE
••~.~ •~ CONCRETE DRIVE OR WALKWAY
---- EXISTING TOP OF BANK
-•• -~•- EXISTING TOE OF BANK
••~ CONSTRUCTION ACCESS
4-~ FENCE
--TJ SANITARY SEWER
® EXPOSED ROOTS
0 STUMP
[~ RIFFLE
-~--~--+«- SILT FENCE
2' CONTOURS
(CITY OF RALEIGH GIS)
EXISTING STREAM
EXISTING BRIDGE
T
TOP OF BANK HEATHROW HOMEOWNERS
ASSOC INC, C/O
TIMBELL-WILSON
TOE OF BANK PO BOX 21969
RALEIGH, NC 27619
PIN # 1728141043.
20 10 0 20
SCALE IN FEET
NOTES
1, CONTRACTOR TO INSTALL EROSION
CONTROL MEASURES PRIOR TO
CLEARING
2. CONTRACTOR TO STABILIZE .ALL WORK
DAILY AND PIOR TO ANY RAINFALL
EVENT, PUMP AROUND ANY BASE FLOW
FROM WORK AREA,
3, ALL CONSTRUCTION TO BE IN
COMPLIANCE WITH CITY OF RALIEGH
STANDARDS
4. ALL UTILITY, PLANTER, FENCE, TREE,
ETC. LOCATIONS ARE APPROXIMATE,
CONTRACTOR TO FIELD LOCATE ALL
UTILITIES AND CONFLICTS PRIOR TO
CONSTRUCTION,
5. CONTRACTOR TO REPLACE ANY
CONCRETE DRIVEWAY, SIDEWALK, OR
CURBING DAMAGED DURING
CONSTRUCTION
6. ALL CUT SOILS AND DEBRIS TO BE
REMOVED FROM THE SITE AND
DISPOSED OF PROPERLY,
7, CONTOUR AND PLANIMETRIC
INFORMATION FROM WAKE COUNTY GIS.
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October 11, 2006
~ROJ,/DWG, NAME;
DaMgreen rd
efts
i'-2o•
HEET 1 of 2

Permanent Cross Section #1A
102.00
101.00 13'
100.00
.. r 99.00
`'' 98.00
~ UT EROSION CONTROL MATT
O
~ 97.00
_~ 1H:1V
W 96.00
95.00
CLASS II RIP RAP TO BANKFULL ELEV. 96'
94.00
93.00
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 60.00 65.00 70.00 75.00
Distance (feet)

Permanent Cross Section #2
102.00
101.00
100.00
99.00
m
~ 98.00
0
a
m 97.00
W
96.00
95.00
94.00
93.00
cur
EROSION CONTROL MATT BOTH SIDES
3H:1 V
2H:1 V
BEGIN CUT ABOVE -
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 60.00 65.00
Distance (feet)

Permanent Cross Section #3
101

100

99

98
.-.
~+
`~'' 97

C
O
96
~

W
95

94

93

92

0 5 10 15 20 25 30 35 40 45
Distance (feet)
9.5' 12' 5' MIN FENCE

EROSION CONTROL MATT
3H:1V CUT
2H:1 V

ss' .

Permanent Cross Section #4
100

99

98

cur
97
....
d
3H:1 V
`~' 96
~ 2H:1 V
O
95
~
d
W

4 CLASS II RIP RAP TO BANKFULL
~ ELEV 96'

93

92

91
0 5 10 15 20 25 30 35 40 45 50
Distance (feet)

Permanent Cross Section #5
100.00
s~ s.
99.00
98.00
,~ cur
~ cur
97.00 _
O 3H:1
~ 96.00
~ 2H:1 V
W
95.00
94.00
93.00
0 5 10 15 20 25 30 35 40 45 50 55
Distance (feet

Permanent Cross Section #6
99.00
98.00
97.00
d
v 96.00
C
O
:.+
~ 95.00
d

94.00
93.00
92.00
3.5' 3.5'
CUT
CUT
EROSION CONTROL MATT BOTH SIDES
1H:1V
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 60.00 65.00 70.00 75.00
Distance (feet)

•~y
'i..~
V
U
bA
O
.^.,
O
a
a

Y
~ ~ ~ ;
i a` 1 , ~~._..~,,. ~.
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~~'
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-{
Project: City of Raleigh Storm Water Services
Location: 2720 & 2724 Dahlgreen Road Section 1-Used as a Reference Section for Bank Reconstruction Plan Sheet
Date: 8/15/2006

Left Permanent Benchmark Elevation:
100
Left Permanent Benchmark Location: rvorut tasi Ker. No.
Ri ht Permanent Benchmark Elevation: Ri ht Permanent Benchmark Location:
Benchmark descri t'
pion.
Note: Cross Section taken from left to right looking downstream
Photo Reference Location:
Back-Sight tHnstrument Foresight Heist Notes
Station
Feet BS
Feet HI
Feet FS
Feet Elevation
Feet Commerns
Remarks
5.59 105.59
1 •~ 5.30 100.29
3.00 5.31 100.28
5•~ 6.04 99.55
6.70 6.93 98.66 Bankfull
8.70 7.48 98.11
10.60 7.98 97.61
12.80 8.40 97.19
14.20 8.66 96.93 TOB
14.50 10.02 95.57 Tce
15.50 9.96 95.63
17.90 10.31 95.28
19.20 10.37 95.22
20.50 10.72 94.87
21.30 10.45 95.15
22.60 10.06 95.53 Tce
24.00 8.41 97.19 Bankfull
28.00 5.17 100.43
29.50 4.56 101.03 TOB
32.00 4.87 100.72
37.00 5.27 100.32 Ed a of Debris
43.50 4.76 100.83 Fence

Stream

t .
a
Upstream Reference Cross Section #1
102.00 '
101.00
100.00
w
... 99.00
O 98.00
~+
~ 97.00
_~
W ~•~
95.00
94.00
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00
Distance (feet)
102.00
101.00
100.00
99.00
98.00 -~ Ground
_a_ Bankfull
97.00
96.00
95.00
94.00
0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00

~ .
.., ~
Width=
Bankfull Cross Section Bankiull Elevation 97.19
Elevation Incremental Incremental Incremental
Station Elevation from Bankfull Avg.Height Ft. Distance Ft. Area Sq.Ft
12.8 97.19 0
0.115 1.4 0.161
14.2 96.96 0.23
0.925 0.3 0.2775
14.5 95.57 1.62
1.59 1 1.59
15.5 95.63 1.56
1.735 2.4 4.164
17.9 95.28 1.91
1.94 1.3 2.522
19.2 95.22 1.97
2.145 1.3 2.7885
20.5 94.87 2.32
2.18 0.8 1.744
21.3 95.15 2.04
1.85 1.3 2.405
22.6 95.53 1.66
0.83 1.4 1.162
24 97.19 0
Total Area 16.814 Sq. Feet

SCL Dahlgreen Road
Wake County, North Carolina
Hydrograph Peak/Peak Time Table
Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period
or Reach 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr
Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs)
(hr) (hr) (hr) (hr) (hr) (hr) (hr)
----------------------------------------------------------------------------------
SUBAREAS
Reach 1 183.95 289.93 381.47 473.52 547.24 641.03 130.05
12.16 12.15 12.14 12.15 12.14 12.12 12.17
REACHES
OUTLET 183.95 289.93 381.47 473.52 547.24 641.03 130.05
WinTR-55, Version 1.00.08 Page 1 10/10/2006 10:43:25 AM

r j, w.
~ i
SCL Dahlgreen Road
Wake County, North Carolina
Sub-Area Time of Concentration Details
Sub-Area Flow Mannings's End Wetted Travel
Identifier/ Lenqth Slope n Area Perimeter Velocity Time

------------- (ft)
--------- (ft/ft)
--------
------------ (sq ft)
------- (ft) (ft/sec) (hr)

Reach 1 -- ------------ ---------- -------
SHEET 100 0.0400 0.240 0.168
SHALLOW 600 0.0200 0.050 0.073
SHALLOW 800 0.0600 0.050 0.056
CHANNEL 1550 0.0250 0.045 8.50 7.81 5.520 0.078
CHANNEL 1150 0.0209 0.045 14.88 10.95 5.916 0.054
Time of Concentration .429
WinTR-55, Version 1.00.08 Page 1 10/10/2006 10:43.36 AM

r' • .
1 ~ ~ 1
SCL Dahlgreen Road
Wake County, North Carolina
Sub-Area Land Use and Curve Number Details
Sub-Area Hydrologic Sub-Area Curve
Identifier Land Use Soil Area Number

-------------------------------
--------------
------- Group
------------ (ac)
-------
---
-
-
Reach 1 Open space; grass cover > 75$ (good) B -
1.665 ---
61
Paved; curbs and storm sewers B 6.917 98
Commercial 6 business B 37.619 92
Residential districts (1 /8 acre) B 7,529 85
Residential districts (1/4 acre) 8 31.911 75
Residential districts (1 acre) B 3.544 68
Brush - brush, weed, grass mix (good) B 3.359 48
Woods (good) B 24.837 55
Woods (good) D 5.067 77
Total Area / Weighted Curve Number 122.45 77
WinTR-55, Version 1.00.08 Page 1 10/10/2006 10:45:14 AM

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