HomeMy WebLinkAbout20190042 Ver 1_Riparian Buffer Authorization_201901072 0 1 9 0 0 4 2
® North Carolina Wildlife Resources Commission
Gordon Myers, Executive Director
January 2, 2019
Karen Higgins
NCDWR — 401 & Buffer
Permitting Branch jN Q 7a �201�9
1617 Mail Service Center
Raleigh, NC 27699 _
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s
RE: Little Beaver Creek Public Fishing Access (PFA)
Buffer Authorization Application
Ms. Higgins:
The North Carolina Wildlife Resources Commission (NCWRC) is submitting a buffer authorization request to NCDWR
for review for construction of the Little Beaver Creek PFA site on Jordan Lake. The site is owned by the Army Corps of
Engineers but the proposed fishing access but the area is maintained by NCWRC.
The proposed PFA is located along Beaver Creek Road on Lake Jordan in Chatham County. The proposed work will
include clearing, grading, temporary erosion control measures, gravel access road, gravel parking area, concrete parking,
ADA accessible sidewalks, and an asphalt entrance apron. The current site is undisturbed, wooded area along Jordan Lake.
Portions of the project area are within the Jordan Lake Buffer. Efforts have been made to ensure as little area as possible
is within the buffer area and to ensure any grading will provide for diffuse flow through the existing buffer. Disturbances
in the buffer will include clearing and grading work for a permanent ADA accessible path and concrete abutment for the
proposed pier. Total disturbed area onsite is less than 1 acre.
Please find the completed application and associated documents (and required copies). Please let me know if you have
any questions related to this project. I can be reached at (919) 707-0083 or via email at michael.leg eg^tt(&,ncwildlife.org.
Sincerely,
WJI-i*
Michael Leggett, PE
Engineer
enclosures
Mailing Address: N.C. Wildlife Resources Commission • 1701 Mail Service Center • Raleigh NC 27699-1701
Telephone: (919) 707-0010
State of North Carolina
Department of Environmental Quality
Division of Water Resources Division of Water Resources
15A NCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b),.0259 (8)(b), .0267 (11)(c),.0607 (e)(2) - Buffer Authorization
FORM: BA 10-2013
Riparian Buffer Authorization Form
A.
Applicant Information
1.
Project Information
1a. Name of project:
Little Beaver Creek Public Fishing Access
1 b. County:
Chatham
1c. Nearest municipality:
New Hill
1 d. Subdivision name:
N/A
1e. Is the project located in any of North Carolina's twenty coastal counties?
If yes, answer 1f below.
❑ Yes ® No
1f. Is the project located within a NC Division of Coastal Management Area of
Environmental Concern (AEC)?
❑ Yes ® No
2.
Owner Information
2a. Name on Recorded Deed:
United States of America (Army Corps of Engineers)
2b. Deed Book and Page No.
N/A
2c. Map Book and Page No.
(include a copy of the
recorded map that indicates
when the lot was created):
N/A
2d. Responsible Party
for Corporations):
North Carolina Wildlife Resources Commission
2e. Street address:
1720 Mail Service Center
2f. City, state, zip:
Raleigh, NC 27699
2g. Telephone no.:
(919) 707-0083
2h. Fax no.:
(919) 707-0162
2i. Email address:
Michael. leggett(a ncwildlife.org
3.
Applicant Information (if different from owner)
3a. Applicant is:
❑ Agent ❑ Other, specify:
3b. Name:
NC Wildlife Resources Commission
3c. Business name
if applicable):
3d. Street address:
1720 Mail Service Center
3e. City, state, zip:
Raleigh, NC 27699
3f. Telephone no.:
(919) 707-0083
3g. Fax no.:
(919) 707-0083
3h. Email address:
Michael.leggett@ncwiIdlife.org
4.
Agent/Consultant Information (if applicable)
4a. Name:
4b. Business name
if applicable):
4c. Street address:
4d. City, state, zip:
4e. Telephone no.:
4f. Fax no.:
4g. Email address:
FORM: BA 10-2013 Page 1 of 4
B.
Project Information and Prior Project History
1.
Property Identification
1 a.
Property identification no. (tax PIN or parcel ID): 979200350720
1 b.
Site coordinates (in decimal degrees): Latitude: 35.695980 1 Longitude: -79.015132
1c.
Property size: 38,565 acres
2.
Surface
Waters
2a.
Name of nearest body of water to proposed project: B. Everett Jordan Lake (New Hope Arm)
2b.
Water Quality Classification of nearest receiving water: WS-IV,B;NSW, CA
2c.
River basin: Cape Fear
3.
Project Description
3a.
Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of
this application:
Undeveloped / Wooded
3b.
Attach an 8 '/ x 11 excerpt from the most recent version of the USGS topographic map indicating the location
of the site
3c.
Attach an 8'/ x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map
depicting the project site
3d.
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
0
3e.
Explain the purpose of the proposed project:
Gravel Access Road/Parking with floating fishing pier to provide recreational access to the public.
3f.
Describe the overall project in detail, including the type of equipment to be used:
Conventional construction excavators to construct concrete abutment and concrete ADA sidewalk 5' width
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by
the Corps or State been requested or obtained for this
ert/ project(including all priorphases) in thepast?
property/
❑ Yes ❑ No ® Unknown
Comments.-
omments:ro
4b.
If yes, who delineated the jurisdictional areas?
Name (if known):
Agency/ Consultant Company:
Other:
4c.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach
documentation.
5.
Project History
5a.
Have permits or certifications been requested or obtained
for this project(including all priorphases) in thepast?
❑ Yes ❑ No ® Unknown
5b.
If yes, explain and detail according to "help file" instructions.
6.
Future Project Plans
6a.
Is this a phased project? ❑ Yes ® No
6b.
If yes, explain.
FORM: BA 10-2013 Page 2 of 4
C. Proposed Impacts Inventory
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Buffer impacts limited to clearing/grading for concrete ADA accessible route to pier.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction
techniques. Erosion control measures, seeding and impacts limited to those required for construction.
1. Buffer Impacts
2a. Will the project result in an impact within a protected riparian buffer that
requires buffer mitigation?
❑ Yes ® No
2b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
1a. Project is in which protected basin?
❑ Neuse
❑ Randleman
❑ Tar -Pamlico
® Jordan
❑ Catawba
❑ Goose Creek
1 b. Individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of
this form.
Buffer impact Reason for
number — impact
Permanent (P)
or Temporary
T
Type of impact Stream name
(exempt, allowable,
allowable w/
mitigation)
Buffer
mitigation
required?
Zone 1 Zone 2
impact impact
(sq ft) (sq ft)
B1 ® P ❑ T Walkway/Abut.
Allowable Jordan Lake
❑ Yes ® No
173
B2 ❑ P ® T Grading
Allowable Jordan Lake
❑ Yes ® No
215
B3 ® P ❑ T Walkway
Allowable Jordan Lake
❑ Yes ® No
105
B4 ❑ P ® T Grading
Allowable Jordan Lake
❑ Yes ® No
171
B5 ❑ P ❑ T
❑ Yes ❑ No
B6 ❑ P ❑ T
❑ Yes ❑ No
Total buffer impacts
1 c. Comments: Impacts relate to concrete ADA sidewalk from parking to floating pier.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Buffer impacts limited to clearing/grading for concrete ADA accessible route to pier.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction
techniques. Erosion control measures, seeding and impacts limited to those required for construction.
2. Buffer Mitigation
2a. Will the project result in an impact within a protected riparian buffer that
requires buffer mitigation?
❑ Yes ® No
2b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
Zone
Reason for impact Total impact Multiplier
(square feet
Required mitigation
square feet
Zone 1
3 (2 for Catawba)
Zone 2
1.5
Total buffer mitigation required:
2c. If buffer mitigation is required, is payment to a mitigation bank or NC DMS
proposed?
❑ Yes ❑ No
2d. If yes, attach the acceptance letter from the mitigation bank or NC DMS.
2e. If no, then discuss what type of mitigation is proposed.
2f. Comments:
FORM: BA 10-2013 Page 3 of 4
E. Diffuse Flow Plan
All buffer impacts and high ground impacts require diffuse flow or other form of
® Diffuse flow
stormwater treatment. Include a plan that fully documents how diffuse flow will be
❑ Other BMP
maintained. If a Level Spreader is proposed, attach a Level Spreader Supplement Form.
1 b. If you answered "yes" to the above, does the project require preparation of an
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
environmental document pursuant to the requirements of the National or State (North
plan for stormwater treatment as outlined in Chapter 8 of the NC Stormwater BMP
Carolina) Environmental Policy Act NEPA/SEPA ?
Manual and attach a BMP Supplement Form.
1 c. If you answered "yes" to the above, has the document been finalized by the State
F. Supplementary Information
1. Environmental Documentation
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the
® Yes ❑ No
use of public federal/state land?
1 b. If you answered "yes" to the above, does the project require preparation of an
❑ Yes ® No
environmental document pursuant to the requirements of the National or State (North
Carolina) Environmental Policy Act NEPA/SEPA ?
1 c. If you answered "yes" to the above, has the document been finalized by the State
❑ Yes ❑ No
Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.)
Comments:
2. Violations
2a. Is the site in violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated
❑ Yes ® No
Wetland Rules (15A NCAC 02H .1300), DWR Surface Water or Wetland Standards,
or Riparian Buffer Rules 15A NCAC 02B .0200)?
2b. Is this an after -the -fact permit application?
❑ Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
ku L,64 Loa�gc 12 j
Applicant/Agent' Printed Name Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Send 3 complete sets of this form and accompanying documents to the following:
For government transportation projects sent by
First Class Mail via the US Postal Service:
NC DWR, Transportation Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699 - 1617
For all other projects sent by First Class Mail via
the US Postal Service
For government transportation projects sent by
delivery service (UPS, FedEx, etc.):
OR NC DWR, Transportation Permitting Unit
512 N. Salisbury Street
Raleigh, NC 27604
For all other projects sent by delivery service
(UPS, FedEx, etc.):
Karen Higgins Karen Higgins
NCDWR — 401 & Buffer Permitting Branch OR NCDWR — 401 & Buffer Permitting Branch
1617 Mail Service Center 512 N. Salisbury Street
Raleigh, NC 27699 - 1617 Raleigh, NC 27604
FORM: BA 10-2013 Page 4 of 4
FLOATING PIER
In
BUFFER IMPACT INFORMATION
BUFFER IMPACTS:
JORDAN LAKE
BUFFER IMPACT AREA
(ABUTMENT & ADA ACCESSIBLE ROUTE)
CONCRETE ABUTMENT
JORDAN LAKE
TOTAL BUFFER IMPACTS -
TOTAL PERMANENT IMPACTS (IMPERVIOUS)
81 / ZONE 1 IMPACTS (TOTAL):
B2 / ZONE 1 IMPACTS (PERMANENT):
B3 / ZONE 2 IMPACTS (TOTAL):
B4 / ZONE 2 IMPACTS (PERMANENT):
SITE NOTES:
IN
SURVEYED WATER LEVEL
EL. 217.0'
664 SF
278 SF
388 SF
173 SF
276 SF
105 SF
2
a� JORDAN LAKE WATERSHED BUFFER
DWR 50' BUFFER
i
/ GRAVEL PNEUVER AREA
2 /
O
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W/ HANDRAILS
\
JORDAN LAKE WATERSHED BUFFER
DWR 50' BUFFER \ \
1. IMPACTS TO BUFFER INCLUDE CLEARING, EXCAVATION, GRADING, AND PLACEMENT OF A 5' CONCRETE ACCESSIBLE ROUTE AND CONCRETE ABUTMENT
2. ACCESSIBLE ROUTE WILL INCLUDE 5' CONCRETE SIDEWALK & ADA HANDRAILS ON BOTH SIDES AND CONNECT PARKING AREA TO ABUTMENT AND PIER
J. CLEARING, GRADING, AND EXCAVATION SHALL BE LIMITED TO AREA REQUIRED TO INSTALL ROUTE AND ABUTMENT. AT NO POINT WILL LIVE CONCRETE TOUCH
WATERS ASSOCIATED WITH JORDAN LAKE.
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SITE PLAN - PARKING & PIER
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GRADING PLAN /E&SC PLAN - PARKING & PIER
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DETAILS
DETAILS
DETAILS
EX. CONTOUR (MJR)
EX CONTOUR (MNR)
EX. RAN
PROP. CONTOUR (MNR)
PROP. CONTOUR (MJR)
PROP EOG (GRAVEL)
L IMI TS OF DISTURBANCE
SILT FENCE
PROP. DITCH
100 YR FLOOD PLAIN
WATER LEVEL
JORDAN LAKE BUFFER
EXISTING TREE LINE
DIVISION OF ENGINEER/NG SERVICES
1720 MAIL SERVICE CENTER
RALE/GH, NORTH CAROLINA 27699-f720
(919) 707-0150 FAX. • (919) 707-0162
PROJECT
LI TTLE BEA VER CREEK - PUBLIC FISHING AREA
3 186 BEA VER CREEK ROAD
NEW HILL, NC
CHATHAM COUNTY, NC
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BY NCWRC STAFF AND IS NOT INCLUDED /N
CONTRACT SCOPE
PROJECT INFORMATION:
5' WIDE ADA ACCESSIBLE ROUTED
SURVEYED WATER LEVEL
EL. 217.0'
TAPER SHOULDER TO �\ EDGE OF SHOULDER
l GRAVEL MANEUVER AREA i EDGE OF GRAVEL
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NCWRC KIOSIZ'
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JORDAN LAKE WATERSHED BUFFER
DWR 50' BUFFER
GRAVEL PARK/NG (6 SPACES)
PROJECT NAME: LITTLE BEAVER CREEK PUBLIC FISH/NG ACCESS (PFA)
PIN: 97920OJ50720
TOTAL ACRES: J8,565 AC
DISTURBED ACRES: J7,09J SF (0.85 ACRES)\C�AR//ii��
PARKING SPACES: 9 TOTAL (1 ADA SINGLE VEHICLE / 8 SINGLE VEHICLE) �� �`� .. • 0(
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SITE NOTES: -- 3,743A1. -
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2. LOTOPOGRAPHIC
T/ON 0F NCDO INFORMATION PROVIDED
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VER/FY PR/OR TOFUTILITIES BEG/NN/NG HAS BEEN
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J. LOCATION OF 100 YR FLOOD PLAIN DOWNLOADED FROM NCFRIS, PANEL 9780, MAP J710978000K (11/17/2017).
4. DEVELOPMENT WHICH WILL TAKE PLACE WITHIN THE LIMITS OF THE 100 YEAR FLOODPLAIN AT ELEVATION 237.8' IS DESIGNED IN ACCORDANCE WITH THE
REQUIREMENTS OF EXECUTIVE ORDER NO. 12J - UNIFORM FLOODPLAIN MANAGEMENT POLICY.
5. ALL IMPROVEMENTS AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH STATE AND LOCAL STANDARDS.
6. ANY DISCREPANCIES FOUND IN THE FIELD SHALL BE CALLED TO THE ATTENTION OF THE OWNER OR ENGINEER PRIOR TO PROCEEDING WITH WORK. 30 0 30 60
7. ALL WORK NOT SPECIFICALLY SHOWN TO BE DONE BY NCWRC CREWS WILL BE PERFORMED BY CONTRACTOR. CONCRETE ABUTMENT AND FLOATING PIER TO
BE PROVIDED AND INSTALLED BY NCWRC STAFF AND IS NOT APART OF THIS CONTRACT.
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NCWRC ENTRANCE SIGN
SITE NOTES: (RE. 1/CD 8.2)
1. TOPOGRAPHIC INFORMATION PROVIDED BY NCWRC STAFF SURVEY NO GEOTECHNICAL EVALUATION OR LOCATION OF UTILITIES HAS BEEN PERFORMED.
2. LOCATION OF NCDOT RIGHT OF WAY (R/W) BASED ON CHATHAM COUNTY GIS. CONTRACTOR TO VERIFY PRIOR TO BEGINNING WORK.
J. SEE SHEET CD -8.0 & B. 1 FOR ACCESS ROAD DETAILS.
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JORDAN LAKE WATERSHED BUFFER /
JORDAN LAKE DWR 50BUFFER _
LIMITS OF DISTURBANCE
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SURVEYED WATER LEVEL
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GRADING/E&SC NOTES:
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-- ------------
1. TOPOGRAPHIC INFORMATION PROVIDED BY NCWRC STAFF SURVEY. NO GEOTECHNICAL EVALUATION OR LOCATION OF UTILITIES HAS BEEN PERFORMED.
2. LOCATION OF 100 YR FLOOD PLAIN DOWNLOADED FROM NCFRIS, PANEL 9780, MAP J710978000K (11/17/2017).
J. ALL IMPROVEMENTS AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH STATE AND LOCAL STANDARDS.
4. SPOT ELEVATIONS REFER TO TOP OF CONCRETE/FINISHED GRADE.
5. TRANSITIONS FROM EDGE OF GRAVEL/CONCRETE TO EDGE OF GROUND SHALL BE COMPACTED AND FINE GRADED TO CREATED SMOOTH TRANSITION.
6. ACCESSIBLE ROUTE FROM PARKING TO ABUTMENT SHALL MEET ADA REQUIREMENTS (MAX 1:12 RUNNING SLOPE, 5'X5' LANDINGS, HANDRAILS, ETC.).
7. SEE 1/CD-4.4 FOR CONSTRUCTION SEQUENCE RELATED TO GRADING/E&SC.
6. CONCRETE ABUTMENT AND FLOATING PIER TO BE PROVIDED AND INSTALLED BY NCWRC STAFF AND IS NOT APART OF THIS CONTRACT.
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LITTLE BEAVER CREEK PFA
NORTH CAROLINA WILDLIFE RESOURCES COMMISSION
DIVISION
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NORTH OF ENGINEERING SERVICES
9
CAROLINA 1720 MAIL SERVICE CENTER
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CHATHAM COUNTY, NC JORDAN LAKE
RALEIGH, NORTH CAROLINA 27699
33�
R� SS Phone: 919.707.01
Fax: 919.707.016262
E&SC PLAN - ACCESS ROAD
www.ncwildlife.org
1. NO LAND DISTURBING PERMIT (STATE OR LOCAL) IS REQUIRDED FOR THIS PROJECT. CONTRACTOR SHALL OBTAIN ALL OTHER
REQUIRED FEDERAL, STATE, AND LOCAL APPROVALS AND PERMITS NECESSARY TO BEGIN AND COMPLETE THE PROJECT. OBTAIN A
PERMITS PRIOR TO BEGINNING ANY DISTURBANCE ON THE SITE SO WORK WILL NOT BE INTERRUPTED.
2. INSTALL ALL TEMPORARY EROSION CONTROL MEASURES ACCORDING TO THE INFORMATION DISCUSSED DURING THE
PRE -CONSTRUCTION MEETING. MEASURES INCLUDE TEMPORARY CONSTRUCTION ENTRANCE, SILT FENCE AND SILT FENCE OUTLETS
AND SKIMMER BASIN.
J. ROUGH GRADE DIVERSION DITCH (DITCH # 1) TO SKIMMER BASIN, AND CHECK DAM(S) AND SEED IMMEDIATELY. DITCH MUST
REMAIN INTACT (MAINTAIN POSITIVE DRAINAGE) UNTIL EROSION CONTROL PHASES ARE COMPLETE.
4. COMPLETE SELF -INSPECTIONS WEEKLY AND WITHIN 24 HOURS OF A 0.5" OR GREATER RAINFALL EVENT EMAIL ALL INSPECTION
REPORTS TO ENGINEER WITHIN 24 HOURS OF INSPECTION.
5. CLEAR AND GRUB SITE, PERFORM GRADING OPERATIONS TO PROPOSED GRADES, PLACE AND COMPACT STONE. COMPLETE ALL
CONSTRUCTION WITHIN THESE PROJECT LIMITS.
6. MAINTAIN ALL EROSION AND SEDIMENT CONTROL MEASURES IN GOOD WORKING ORDER THROUGHOUT CONSTRUCTION. SILT FENCE
AND OTHER MEASURES MUST BE CLEANED OUT BEFORE THEY ARE HALF FULL. CLOGGED SILT FENCE OUTLETS MUST BE
REFRESHED/REPLACED. SILT FENCE CANNOT HAVE HOLES OR TEARS. CONTRACTOR IS RESPONSIBLE FOR MAINTAINING WRITTEN
RECORDS AND REPORTS.
7. IF IT IS DETERMINED DURING THE COURSE OF CONSTRUCTION THAT SIGNIFICANT SEDIMENT IS LEAVING THE PROJECT SITE DESPITE
PROPER IMPLEMENTATION AND MAINTENANCE OF THE EROSION CONTROL PLAN, THE PERSON RESPONSIBLE FOR THE LAND
DISTURBING ACTIVITY IS OBLIGATED TO TAKE ADDITIONAL PROTECTIVE ACTION.
B. KEEP MUD AND DEBRIS OFF THE PUBLIC ROAD AT ALL TIMES. IF MUD OR DEBRIS ARE TRACKED FROM THE SITE, USE A SHOVEL
AND BROOM TO REMOVE IT IMMEDIATELY. IF MUD AND DEBRIS ARE NOT KEPT OFF THE STREET, ENFORCEMENT ACTION (REVOKING
THE LAND DISTURBANCE PERMIT AND/OR A STOP WORK ORDER) MAY BE TAKEN.
9. PERFORM FINE GRADING OPERATIONS AND INSTALL DITCH LINER AFTER GRADING ONCE FINAL GRADES HAVE BEEN MET. REMOVE
CONSTRUCTION ENTRANCE SURGE STONE (AS REQUIRED TO PAVE ENTRANCE), PREPARE SUBGRADE, INSTALL ABC AND ASPHALT.
10. PROVIDE ALL DISTURBED AREAS WITH GROUND COVER WITHIN THE TIME FRAMES SHOWN IN THE STABILIZATION TIME TABLE
(RE•2/CD-4.4) FOLLOWING COMPLETION OF ANY PHASE
PROVIDED AS FOLLOWS: OF CLEARING, GRUBBING, OR GRADING GROUND COVER SHALL BE
10.1. STABILIZE BASINS WITH GROUND COVER IMMEDIATELY AFTER INSTALLATION.
10.2. STABILIZE DIVERSION DITCHES INTENDED TO BE IN SERVICE FOR JO DAYS OR MORE WITH TEMPORARY SEEDING AND EROSION
FOR ALL AREAS OF MODERATE AND/OR STEEP SLOPES, STABILIZE AREA WITH SEED AND MATTING IF THE SLOPE HAS NOT
BEEN DISTURBED FOR A PERIOD OR SEVEN (7) DAYS.
10.J. PROVIDE GROUND COVER SUFFICIENT TO RESTRAIN EROSION ON ANY PORTION OF THE SITE UPON WHICH FURTHER LAND
DISTURBING
10.4. ACTIVITY IS NOT BEING UNDERTAKEN WITHIN FIFTEEN (15) CALENDARS OF TEMPORARILY OR PERMANENTLY SUSPENDING LAND
DISTURBING ACTIVITY.
10.5. ESTABLISH PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION IMMEDIATELY FOLLOWING COMPLETION OF
CONSTRUCTION OR DEVELOPMENT AND/OR PRIOR TO FINAL INSPF-T(ON.
11. THE CONTRACTOR IS REjruNSIBLE FOR ANY AND ALL TEMPORARY SEEDING REQUIRED DURING THE PROJECT AT NO ADDITIONAL
COST.
12. MODIFICATIONS TO THE APPROVED AND PERMITTED PLANS SHALL BE APPROVED BY ENGINEER ONLY, PRIOR TO REMOVAL OR
INSTALLATION. CONTACT ENGINEER TO REQUEST AN INSPECTION AND OBTAIN A SIGN -OFF ON THE PLANS OR AN APPROVED FIELD
REVISION.
1J. WHEN CONSTRUCTION IS COMPLETE OR A PHASE OF CONSTRUCTION IS COMPLETE, DISTURBED AREAS ARE STABILIZED, AND ALL
EROSION CONTROL MEASURES ARE STILL IN PLACE, CONTACT ENGINEER TO SCHEDULE THE FINAL INSPECTION.
14. WHEN CONSTRUCTION IS COMPLETE AND ALL DISTURBED AREAS HAVE BEEN PERMANENTLY STABILIZED, AND ENGINEER AS GIVEN
FINAL APPROVAL, REMOVE ALL TEMPORARY EROSION CONTROL DEVICES, INCLUDING SEDIMENT PITS AND GRAVEL CONSTRUCTION
ENTRANCE. REMOVE AND PROPERLY DISPOSE OF ACCUMULATED SEDIMENT AND DEBRIS FROM THE DEVICES AND STABILIZE AREAS
DISTURBED BY THEIR REMOVAL.
1 /C D-4.2
CONSTRUCTION SEQUENCE
NTS
DITCH CALCULATIONS
DITCH
DRAINAGE
RUNOFF
INTENSITY
Q(10) FLOW
SIDE
BOTTOM
MIN.
SLOPE
FLOWVELOCITY
SHEAR
TEMPORARY
PERMANENT
AREA (ACRES)
COEFF.
TC(MIN)
(IN/HR)
(CFS)
SLOPE
WIDTH
DEPTH
N.)
DEPTH
(FPS)
STRESS
LINING
LINING
(FT)
(FT) i
(FT)
1
0.94
0.27
5
7.44
1.9
3:1 1
0
1 1
0.02
0.45
2.87
0.7
ECB
Grass
Notes:
Erosion Control Blanket (ECB) shall be North American Green S75BN (NAG S75131N) or appro%ed equal
Permissible Shear Stress for NAG S75BN = 1.60 lbs/sf
CRITICAL POINTS
A. OVERLAPS AND SEAMS
B. PROJECTED WATER LINE
C. CHANNEL BOTTOM/SIDE
SLOPE VERTICES
EROSION CONTROL BLANKET
WILL BE NORTH AMERICAN
GREEN S75BN, EAST COAST
EROSION CONTROL ECS -1, OR
APPROVED EQUAL. EROSION
CONTROL BLANKETS WILL
HAVE A MINIMUM WIDTH OF
6.67'.
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NOTE.
" HORIZONTAL STAPLE SPACING SHOULD BE ALTERED IF NECESSARY TO
ALLOW STAPLES TO SECURE THE CRITICAL POINTS ALONG THE CHANNEL
SURFACE.
- IN LOOSE SOIL CONSDITIONS, THE USE OF STAPLE OR STAKE LENGTHS
GREATER THAN 6' MAY BE NECESSARY TO PROPERLY ANCHOR THE/
BLANKETS.
INSTALLATION NOTES. -
1. Prepare soil before installing blankets, including any necessary application of lime, fertilizer, and seed.
2. Begin at the top of the channel by anchoring the blanket in a 6" deep x 6" wide trench. Anchor the blanket with a row of stoples/stakes
approximately 12" aport in the bottom of the trench. Backfill and compact the trench after stapling. Apply seed to compacted soil and fold
remaining 12" portion of blanket back over seed and compacted soil. Secure blanket over compacted soil with a row of staples/slakes spaced
approximately 12" apart across the width of the blanket.
J. Roll center blanket in direction of water flow in bottom of chonne/. Unroll blankets with appropriate side against the soil surface. All blankets
must be securely fastened to soil surface by placing staples/stakes in appropriate locations as shown by manufacturer.
4. Place consecutive blankets end over end (shingle style) with a 4'-6" overlap. Use o double row of staples staggered 4" apart and 4" on
center to secure blankets.
5. Full length edge of blankets at top of side slopes must be anchored with a row of stoples/stakes approximately 12" apart in a 6" deep x 6"
wide trench. Backfill and compact the trench after stapling.
6. Adjacent blankets must be overlapped approximately 2'=5" (depending on blanket type) and stapled.
7 A staple check slot is recommended at JO to 40 foot intervals. Use a double row of staples staggered 4" apart and 4" on center over entire
width of the channel.
B The terminal end of the blankets must be anchored with a row of sta les/stake
t l 12" oprt o 6'" d
ep x trench.
(15 cm)
p s roxrmo rn e 6 wide
Backfill and compact the trench after stapling. app a ey `o\ I I I I I ///V/
CAROM//�
SIDE SLOPE, SEE SCHEDULE �� Q . ' S S
O ••pt-cJ1Q t4 9:-y .
DEPTH, SEE SCHEDULE _; a SEL r
EROSION CONTROL BLANKET WHERE SPECIFIEDI0, 7�31 -
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I I� Maintenance
Inspect swoles weekly and after significant (" or greater) rainfall
_ _ events to see if any erosion has taken place, or if ditch lining
-� -� � E 11=111 � � -1 � �-� � � has been damaged. Immediately make all needed repairs to
i ��-� (�-� prevent further damage.
BOTTOM WIDTH, SEE SCHEDULE
2/CD-4.2
SWALE CALCULATIONS/DITCH LINING
NTS
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12/19/2018
JordanLakePFA.d(vg
Surveyed: ML
Designed: MAI
Drawn: M
Approved: MWL
CD -4.2
TEMPORARY SEEDING FOR LATE WINTER AND EARLY SPRING
SEEDING \B\TURE
SPECIES RATE(LB/ACRE)
RYE (GRAIN) 120
ANNUAL LESPEDEZA (KOBE IN 50
PIEDMONT AND COASTAL. PLAIN,
KOREAN IN \fOUNPAI\S)
O\IIT ANNUAL LESPEDEZA WHEN DURATION OF TEMPORARY COVER IS NOT TO
EXTEND BEYOND JUNE.
SEEDING DATES
MOUNTAINS - ABOVE 2500 FT: FEB. 15 - MAY 15
- BELOW 2,500 FT: FEB. I - \I\\' I
PIEDMONT -JAN. I -,% AY I
COASTAL PLAIN - DEC. 1 - APR. 15
SOIL A\IEND\IEN1S
FOLLOW RECOM\IFNIDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL I.IArESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER
\NLCH
APPLY 4,000 LB/ACRE S'TRAWV ANCHOR STRAW BY TACKING WITH ASPHALT,
NETTING OR A \NLCH ANCHORING TOOL A DISK \\"TTII BLADES SET NEARLY
STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL
MAINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE RESEED, REFERTILIZE AND
\NLCH IM\IEDIATELY FOLLOWING EROSION OR OTHER DA\(AGE
- WCU-4.3
TEMPOkARY SEEDING
PER\I1NE\*T SEEDING FOR GENTLE SLOPES, AVERAGE SOIL, LO\i' \IAINTENANCE
SEEDING MIXTURE
SPECIES RATE(LB/ACRE)
TALL FESCUE 80
SERICEA LESPEDEZA 20
KOBE LESPEDEZA 10
SEEDING NOTES
1. AFTER AUG. 15, USE UNSCARIFIED SERICEA SEED.
2. V1IF.RI. PERIODIC \f0\VING IS PLANNED OR A NEAT APPEARANCE IS DPSWED,
O\IIT SERICEA AND INCREASE KOBE LESPEDEZA TO 40 LB/ACRE.
3. TO EXTEND SPRING SEEDING DATES INTO JUNE, ADD 15 LB/ACRE HULLED
BER\IUDAGRASS. HOWEVER, AFTER \IID -APR. IT IS PREFERABLE TO SEED
TG\IPORARY COVER.
NURSE PLANTS
BET\VEEN INLAY I AND AUG. 15, ADD 10 LB/ACRE GEII\IAN MILLET OR 15 LB/ACRE
SUDANGRASS. PRIOR TO \IA\' 1 OR AFTER AUG. 15, ADD 40 LB/ACRE RYE (GRAIN).
SEEDING DATES
BEST POSSIBLE
FALL- AUG. 25 - SEPT. 15 AUG. 20 - OCT. 25
LATE WINTER FEB. 15 - \LAR. 21 FEB. 1 - APR. 15
FALL IS BEST FOR TALL FESCUE, AND LATE WINTER FOR LESPEDEZAS.
OVERSEEDING OF KOBE LESPEDEZA OVER FALI-SEEDED TALL FESCUE IS VERY
EFFECTIVE.
SOIL AAIEND\IENTS
APPLY L.L\fE AND FERTILIZER ACCORDING TO SOIL TESTS, Olt APPLY 4,000 LB/ACRE
GROUND AGRICUI.TWU\,L LIMESTONE AND 1,000 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE GRAIN S11iAW OR EQUIVALENT COYER OF ANOTHER
SUITABLE \IULCII. ANCHOR STRAW B\' TACKING WITH ASPHALT, NETTING, OR
ROVING OR BY CRI\IPING WITH A \fULCI I ANCHORING TOOL A DISK WITH
BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL
\lAINTE.NANCE
REFERTfLIZE IN THE SECOND YEAR UNLESS GRO\\'I'Fi IS FULL 7' ADEQUATE. \f Al'
BE \LOWED ONCE OR TWICE A YEAR, BLIT INIOW'ING IS NOT NECESSARY. RESEED,
FERTILIZE, AND \IULCII DAMAGED AREAS I\I\IEDIATEI.Y.
2/CD-4.3
PERMANENT SEEDING
TEMPORARY SEEDING FOR SU\I\IER
SEEDING MIXTURE
SPECIES RATE(LB/ACRE)
GER\IAN AM LET 40
IN THE PIEDXION'T AND IIOUNTAINS, A S\IALL-STEINf\!ED SUDANGRASS 11fAY BE
SUBSTITUTED AT A RATE OF 50 LB/ACRE_
SEEDING DATES
MOUNTAINS - ABOVE 2,500 FT: \tAY 15 - AUG. 15
- BELOW 2,500 FT: \IAY 1 - AUG. 15
PIED\IO.NT- MAY 1 - AUG. 15
COASTAL PLAIN - APR. 15 - AUG. 15
SOILA\IEND\IENTS
FOLLOW RECOINI\fENDA11ONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER
INIULCI I
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT,
NETTING OR A \NLCH ANCHORING TOOL. A DISK \\TTH BLADES SET NEARLY
STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL
\LIINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, REFERTILIZE AND
MULCH IDI\IEDIATELY FOLLOWING EROSION OR OTHER DAMAGE
NOTE: Construction is estimated to start in spring, however
schedule has not been finalized. Choose appropriate
temporary seeding based on actual construction schedule.
TONIPORARY SEEDING FOR FALL
2
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TIMEFRAME EXCEPTIONS
SEEDING MIXTURE
SPECIES RATE (LB/ACRF)
W
None
RIT (GRAIN) 120
7 days
None
Slopes steeper than 3:1
0U
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are allowed.
Slopes 3:1 or flatter
14 days
7 days for slopes greater than 50' In length.
SEEDING DATES
N S oo)i
None, except for perimeters and HQW zones.
MOUNTAINS - AUG. IS -DEC. 15
W N
COASTAL PLAIN AND PLEMIONT - AUG. 15 - DEC. 30
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NETTING OR A \IULCII ANCHORING TOOL A DISK WITH BLADES SET NEARLY
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COASTAL PLAINS OR KOREAN (MOUNTAINS) LESPEDEZA IN LATE FEBRUARY OR
EARLY \I\RCH.
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SITE AREA DESCRIPTION
STABILIZATION
TIMEFRAME EXCEPTIONS
Perimeter dikes, swales, ditches, Slopes
7 days
None
High Quality Water (HQW) Zones
7 days
None
Slopes steeper than 3:1
7 days
If slopes are 10' or less in length and are
not steeper than 2:1, 14 days are allowed.
Slopes 3:1 or flatter
14 days
7 days for slopes greater than 50' In length.
All other areas with slopes flatter than 4:1
14 days
None, except for perimeters and HQW zones.
3/CD-4.3
STABILIZATION TIMEFRAMES
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12/19/2018
File Name:
JordanLakePFA.dwg
Surveyed: ML
Designed: MWL
Drawn: Mlht
Approved: MM
Sheet No.
CD -4.3
ELEVATION
Maintenance
Inspect check dams at least once a week
and after each rainfall. Make any required
repairs immediately. Be sure to maintain
access to the check dams. Remove
sediment deposits when it reaches half full to
provide adequate storage volume for the next
rain. Sediment depth should never exceed
half the designed storage depth. Remove
and replace stone as necessary. After the
contributing drainage area has been properly
FLOW stabilized, remove ol1 check dam materials
6" THICK LAYER OF and unstable sediment deposits, bring the
3/4" STONE area to grade, and stabilize it.
WATER SURFACE
DITCH BOTTOM -
VARIABLE
SPACING
1 /CD -4.4
CHECK DAM
NTS
Maintenance
Inspect sediment fences at least once a
week and after each rainfall. Make any
required repairs immediately.
Should the fabric of o sediment fence
collapse, tear, decompose or become
ineffective, replace it promptly.
Remove sediment deposits as necessary to
p rovidr. adequate storage volume for the
next rain and to reduce pressure on the
fence. Take care to avoid undermining the
fence during cleanout.
Remove all fencing materials and unstable
sediment deposits and bring the area to
grade and stabilize it after the contributing
drainage area has been properly stabilized.
6" WIDE X 8" DEEP
TRENCH. FILL AND
SOIL OVER FABRIC
3/CD-4.4
SILT FENCE
NTS
FILTER FABRIC
SPACE CHECK DAMS SO THAT THE CREST OF
THE DOWNSTREAM DAM IS AT THE SAME
ELEVATION AS THE TOE OF THE UPSTREAM
DAM.
WIRE, 12 GAUGE MIN., 4"x4"
ORT FENCING
STEEL POSTS
AT 8 FEET
MAXIMUM SPACING
O
NOTE.- REMOVE
SEDIMENT THAT
ACCUMULATES IN
FRONT OF FENCE.
REPAIR OR
REPLACE ANY
DAMAGED FENCE.
GROUND
SURFACE
POSTS DRIVEN `,
18" INTO GROUND
SKIRT TO BE TRENCHED IN
8" VERTICALLY AND 4"
111 HORIZONTALLY
EXISTING
ROADWAY
7n' MIN_
PLAN
EX. ROADWAY
NOTES:
1. PUT SILT FENCE OR TREE PROTECTION FENCE UP TO
ENSURE CONSTRUCTION ENTRANCE IS USED.
40' MIN.
30' MIN.
STONE 6" MIN.—/
2/CD-4.4 THICKNESS FABRIC UNDER STONE
GRAVEL CONSTRUCTION ENTRANCE CROSS SECTION
NTS
CONSTRUCTION SITE
STONE 12" MIN.
THICKNESS
FILTER OF •STEEL FENCE ••
• STONE
HARDWARE(REPLACE AS • —
NECESSARY) PLAN VIEW FILTER OF NO 57�.►!i
-a,,► �j�
I'as- dam AS NECESSARY)
ON GROUND
WASHED STONE '•�••rI •
FFILTER
....... . .....
FILTER FABRIC HERE
4' MIN.
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D-4.4
T FENCE OUTLET
S
MEN
MEN
BURY WIRE FENCE
AND HARDWARE CLOTH
I SECTION
TER FABRIC ON GROUND
Maintenance
FENCE
inspect silt fence outlets at least once
a week and after each rainfall. Make any
required repairs as needed. Remove
sediment as necessary to provide
adequate storage volume for subsequent
rains. When the contributing drainage
area has been adequately stabilized,
remove all materials and any unstable
soil, and either salvage or dispose of it
properly. Bring the disturbed area to
proper grade, then smooth and compact
it. Stabilize areas around the outlet.
TOP OF SILT FENCE MUST BE
AT LEAST 1' ABOVE THE TOP
OF THE WASHED STONE
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2. iF CONSTRUCTION ON THE SITES ARE SUCH THAT THE
Surveyed:
ML
MUD IS NOT REMOVED BY THE VEHICLE TRAVELING
MM
Drawn:
OVER THE STONE, THEN THE TIRES OF THE VEHICLES
Approved:
25' OR WIDTH OF
MUST BE WASHED BEFORE ENTERING THE PUBLIC ROAD.
PROPOSED STREET,
WHICHEVER IS
3. CONSTRUCTION ENTRANCE MUST BE CONSTRUCTED WITH
GREATER.
CLEAN STONE (NO FINES).
Maintenance
Maintain the gravel pad in o condition to prevent mud or
sediment from leaving the construction site. This may require
periodic topdressing with 2—inch stone. After each rainfall,
inspect any structure used to trap sediment and clean it out
as necessary. Immediately remove oil objectionable materials
spilled, washed, or tracked onto public roadways.
40' MIN.
30' MIN.
STONE 6" MIN.—/
2/CD-4.4 THICKNESS FABRIC UNDER STONE
GRAVEL CONSTRUCTION ENTRANCE CROSS SECTION
NTS
CONSTRUCTION SITE
STONE 12" MIN.
THICKNESS
FILTER OF •STEEL FENCE ••
• STONE
HARDWARE(REPLACE AS • —
NECESSARY) PLAN VIEW FILTER OF NO 57�.►!i
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ON GROUND
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FFILTER
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FILTER FABRIC HERE
4' MIN.
r
D-4.4
T FENCE OUTLET
S
MEN
MEN
BURY WIRE FENCE
AND HARDWARE CLOTH
I SECTION
TER FABRIC ON GROUND
Maintenance
FENCE
inspect silt fence outlets at least once
a week and after each rainfall. Make any
required repairs as needed. Remove
sediment as necessary to provide
adequate storage volume for subsequent
rains. When the contributing drainage
area has been adequately stabilized,
remove all materials and any unstable
soil, and either salvage or dispose of it
properly. Bring the disturbed area to
proper grade, then smooth and compact
it. Stabilize areas around the outlet.
TOP OF SILT FENCE MUST BE
AT LEAST 1' ABOVE THE TOP
OF THE WASHED STONE
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Sheet No.
CD -4.4
Skimmer Basin Desian
BASIN
TOP WIDTH (FT)
TOP LENGTH (FT)
SIDE
DEPTH
WEIR
LEND
SKIMER SIZE
ORIFICE SIZE
SLOPE
(FT)
(INCH)
(INCH)
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1
20
45
2
4
4
1.5
1
BOTTOM ANCHORED WITH STAPLES
EARTH BERT
JUTE NETTIN
JUTE NETTING
SUPPORTED WITH
TOP WIRE BETWEEN
STEEL POSTS.
SKIMMER OUTLET
INLET ZONE 25X
OF SURFACE
AREA
FIRST CHAMBER
25X OF SURFACE
AREA
725%
COND CHAMBER
OF SURFACE
AREA
OUTLET ZONE 25X
OF SURFACE AREA
-TIE TWO ROPES TO SKIMMER TO
ALLOW MAINTENANCE PERSONNEL TO
PULL SKIMMER TO ONE SIDE OF
PERSPECTIVE VIEW TRAP OR THE OTHER FOR REPAIRS
/ 4• SUPPORT ROPE OR
WIRE TO PREVENT
t�OOAf - SAGGING
/ \ STAKE TO
SUPPORT WIRE
'� FENCE AND FABRIC
BURIED OR
STAPLED INTO
BOTTOM AND SIDE
OF TRENCH
6"x6" TRENCH, b
COIR MESH ORBACKCOMPACTEFILLED D
SIMIUAR MATER
STAPLED OR SUPPORT POST. 24" INTO
TRENCHED INTO BOTTOM OR S1DE
BOTTOM AND SIDE
BAFFLE INSTALLATION — STEP 1
BAFFLE NOTES:
1. DRIVE 5' STEEL POST AT LEAST 24" INTO SOLID GROUND.
2. USE STAPLES 1' APART HORIZONTALLY AND VERTICALLY TO
ATTACH THE FABRIC TO THE HOG WIRE
3. SPACE THE BAFFLES EVENLY ACROSS THE BASIN FOR
REDUCED FLOW AND TURBULENCE.
4. THE FLOOR OF THE BASIN IN THE OUTLET ZONE AND
BERMS SHOULD BE SEEDED IMMEDIATELY AFTER THE BASIN
IS CONSTRUCTED.
5. INLET ZONE WILL BE ACCESSIBLE FOR MAINTENANCE.
BAFFLE INSTALLATION — STEP 2
Baffle Maintenance
Inspect baffles at least once a week and after each rainfall. Make any required repairs immediately.
Be sure to maintain access to the baffles. Should the fabric of a baffle collapse, tea, decompose, or become
ineffective, replace it promptly.
Remove sediment deposits when it reaches half full to provide adequate storage volume for the next rain and to
reduce pressure on the baffles. Take care to ovoid damaging the baffles during cleanout. Sediment depth should
never exceed half the designed storage depth.
After the contributing drainage area has been properly stabilized, remove all baffle materials and unstable
sediment deposits, bring the area to grade, and stabilize it.
1 /CD -4.5 _
SKIMMER SEDIMENT BASIN
NTS
OF BAFFLE SHOULD
6" HIGHER THAN THE
FOM OF THE SPILLWAY
OUTLET END: CONNECTIO1
OUTLET
PROFILE VIEW WITHOUT OUTLET STRUCTURE
OVERF
DESIGN FOR
TO
�1.5' FREEBOARD
LENGTH
oa�o
FILTER v
FABRIC a� 2:1 SIDE
SLOPE MAX
3 FT
MIN
WEIR DETAIL
WE
KIS MMER
Skimmer Basin Maintenance
Inspect skimmer sediment basins at least weekly and after each significant (one—half inch or greater) rainfall event and repair immediately. Remove
sediment and restore the basin to Its original dimensions when sediment accumulates to one—half the height of the first baffle. Pull the skimmer to one
side so that the sediment underneath It can be excavated. Excavate the sediment from the entire basin, not lust around the skimmer or the first cell.
Make sure vegetation growing in the bottom of the basin does not hold down the skimmer.
Repair the baffles if they are damaged. Re—anchor the baffles if water is flowing underneath or around them.
If the skimmer is clogged with trash and there is water In the basin, usually jerking on the rope will make the skimmer bob up and down and dislodge the
debris and restore flow. If this does not work, pull the skimmer over to the side of the basin and remove the debris. Also check the orifice inside the
skimmer to see If it is clogged,- If so remove the debris. if the skimmer arm or barrel pipe is clogged, the orifice can be removed and the obstruction
cleared with a plumber's snake or by flushing with water. Be sure and replace the orifice before repositioning the skimmer.
Check the fabric lined spillway for damage and make any required repairs with fabric that spans the full width of the spillway. Check the embankment,
spillways, and outlet for erosion damage, and inspect the embankment for piping and settlement. Make all necessary repairs immediately. Remove alf trash
and other debris from the skimmer and pool areas.
Freezing weather can result in ice forming in the basin. Some special precautions should be taken in the winter to prevent the skimmer from plugging with
ice.
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CD -4.5
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— BASE DIMENSION
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OUTLET
PROFILE VIEW WITHOUT OUTLET STRUCTURE
OVERF
DESIGN FOR
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LENGTH
oa�o
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SLOPE MAX
3 FT
MIN
WEIR DETAIL
WE
KIS MMER
Skimmer Basin Maintenance
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sediment and restore the basin to Its original dimensions when sediment accumulates to one—half the height of the first baffle. Pull the skimmer to one
side so that the sediment underneath It can be excavated. Excavate the sediment from the entire basin, not lust around the skimmer or the first cell.
Make sure vegetation growing in the bottom of the basin does not hold down the skimmer.
Repair the baffles if they are damaged. Re—anchor the baffles if water is flowing underneath or around them.
If the skimmer is clogged with trash and there is water In the basin, usually jerking on the rope will make the skimmer bob up and down and dislodge the
debris and restore flow. If this does not work, pull the skimmer over to the side of the basin and remove the debris. Also check the orifice inside the
skimmer to see If it is clogged,- If so remove the debris. if the skimmer arm or barrel pipe is clogged, the orifice can be removed and the obstruction
cleared with a plumber's snake or by flushing with water. Be sure and replace the orifice before repositioning the skimmer.
Check the fabric lined spillway for damage and make any required repairs with fabric that spans the full width of the spillway. Check the embankment,
spillways, and outlet for erosion damage, and inspect the embankment for piping and settlement. Make all necessary repairs immediately. Remove alf trash
and other debris from the skimmer and pool areas.
Freezing weather can result in ice forming in the basin. Some special precautions should be taken in the winter to prevent the skimmer from plugging with
ice.
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CD -4.5
ICES
READY MIX
GRADE -60
STEEL.
ORMS AND
AT 2' MAX.
°REDRILLED
ORM. TIE
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Surveyed: ML
Designed: MWL
Drawn: MWL
Approved: MWL
CD -6.0
64' WALKWAY (4 SECTIONS @ 16' EA.)
ELjI 8'
2'
EX. GROUND PROFILE
(FOR IL L USTRA TION ONLY)
NO TES:
1. REFER TO 1/CD-6.0 FOR CONCRETE ABUTMENT REQUIREMENTS. ABUTMENT SHALL BE
8 X8 X2
2. ADA ACCESSIBLE FLOATING PIER SHALL BE NCWRC PREFABRICATED UNIT(S) DELIVERED TO
SITE, AND ANCHORED TO CONCRETE ABUTMENT WITH TYPICAL 18" SEPARATION BETWEEN
DECK AND WATER SURFACE.
1/CD-6.1 _
FLOATING DOCK
NTS
30' RAMP LENGTH 5'x5' LANDING 30' RAMP LENGTH
1'
1.5'
EL.
224.00' 1.. <
.: � I=111 I I-11111
2
NOTEs.•
1. REFER TO 3/CD-8.0 FOR SIDEWALK CROSS SECTION.
2. ACCESSIBLE ROUTE SHALL MEET REQUIREMENTS OF ADA RAMP, INCLUDING A MAXIMUM 1:12 RUNNING SLOPE, 30' MAXIMUM RUN BETWEEN
LANDINGS, AND 5X5' FLAT LANDING AREAS.
3. MAXIMUM SPACING BETWEEN HANDRAIL POSTS SHALL BE 5'. HANDRAIL POSTS SHALL BE ENCASED IN 1' 0 CONCRETE (NCDOT 3, 000 PSI).
4. HANDRAILS SHALL BE PROVIDED ON BOTH SIDES OF THE ROUTE. HANDRAILS SHALL BE 1.5" 0 SCH 40 STEEL PIPE OR 2'X2'Xj" SQUARE TUBE
HANDRAIL. SURFACE PREPARATION SHALL INCLUDE SSPC-SPI1 METHODS, BRUSHED TO REMOVE DEBRIS, AND BLASTED CLEAN. ONE COAT OF
RUST INHIBITING ALKY PRIMER, AND TWO (2) COATS OF ALKYD ENAMEL FINISH PAINT SHALL BE APPLIED.
2/CD-6.1
ADA ACCESSIBLE ROUTE TO PIER
NTS
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EL. 219.00'
11 ' T—PLATFORM
PROP. ABUTMENT
(RE 1/CD-6.0)
18" NWL
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Sheet No.
CD -6.1
1 /C D-8.0
GRAVEL PARKING
NTS
6" MIN. COMPACTED AGGREGATE
BASE COURSE STONE
SUBGRADE
ry " M'A' Uv P.17/
CONCRETE
4" COMPACTED
ABC
SUBGRADE
CONCRETE NOTES.
1. STRIPING FOR ADA PARKING AND AISLE SHALL BE 4" WIDE BLUE PAINT DOUBLE COATED. SLANT AND SPACING OF WALKWAY
CROSS—HATCHING SHALL BE ADA COMPLIANT.
2. PLACE A GROOVE JOINT I" DEEP WITH %" RADII AT 5' INTERVALS. ONE %2." EXPANSION JOINT REQUIRED AT 50' INTERVALS AND
WHERE SIDEWALK JOINS ANY RIGID STRUCTURE.
J. ALL CONCRETE SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 4000 PSI. CONCRETE SHALL BE REINFORCED WITH
SYNTHETIC FIBER, ENGINEERED AND DESIGNED FOR USE IN CONCRETE PAVING, COMPLYING WITH ASTM C1116/1116M, TYPE Ill,
TO 1-1/2'" LONG. FIBERS SHALL BE UNIFORMLY DISPERSED IN CONCRETE MIXTURE AT MANUFACTURES RECOMMENDED RATE, BUT
NOT LESS THAN 1.5 LB/CY.
4. BROOM FINISH SIDEWALKS.
5. ALL SIDEWALKS SHALL HAVE A MAXIMUM CROSS SLOPE OF 2.01-.
3/CD-8.0
CONCRETE ADA PARKING & SIDEWALK
NTS
3" S9.5B SURFACE COURSE ASPHALT
(PLACED IN 2 LIFTS)
8" (MIN.) COMPACTED AGGREGATE BASE
COURSESTONE
SUBGRADE
ASPHALT NOTES. -
1. PLACE ABC ON PREPARED SUBGRADE IN UNIFORM THICKNESS. GRADE TO THICKNESS REQUIRED.
2. PLACE ASPHALT IN TWO (2) 1.5" LIFTS USING TRADITIONAL INSTALLATION METHODS.
J. ASPHALT SHALL BE PLACED BETWEEN EXISTING ASPHALT (BEAVER CREEK ROAD) AND EX NCDOT R/W (APPROX. STA: 0+23)
4. PROVIDE SMOOTH TRANSITION BETWEEN BEAVER CREEK ROAD AND PROP. GRAVEL ACCESS ROAD.
5. TAPER EDGE TO PROVIDE SMOOTH TRANSITION TO EXISTING SHOULDER AREA.
2/CD-8.0
ASPHALT PAVEMENT -ENTRANCE
NTS
4/C D-8.0
NOT USED
NTS
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Surveyed: ML
Designed: MM
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CD -8.0
�I
mm
1' 8"
-2.009
S�ppE
6" ABC (COMPACTED)
3-1 CUT SLOPE (SHOWN)
2:1 CUT SLOPE(MAX)
8' 1'
-2.009
SHOULDER
(-2.009")
DITCH —
3'
NOTES:
I. DETAIL REPRESENTS ACCESS ROAD CROSS SECTION FROM STATION 1+50 TO 7+23 (BEGINNING OF PARKING AREA).
2. AFTER STA: 7+23, GRADING AND GRAVEL SHALL BE PLACED IN ACCORDANCE WITH GRADING PLAN.
J. GRAVEL SHALL BE 6" ABC COMPACTED STONE.
1/CD-8.1
TYPICAL ROAD CROSS SECTION - WITH DITCH
NTS
3:1 CUT SLOPE (SHOWN)
2:1 CUT SLOPE(MAX.)
10" —10' 1'
—2.009' —2.009
V. — 3'
6" ABC (COMPACTED) SHOULDER
(-2.009)
DITCH —
NOTES:
1. DETAIL REPRESENTS ACCESS ROAD CROSS SECTION FROM STATION STA: 0+23 (NCDOT R/W BASED ON GIS DATA) TO STA 1+23.
2. AFTER STA: 1+23, ACCESS ROAD WIDTH SHALL TAPER TO CROSS SECTION DIMENSIONS PER 1/CD-8.1.
3. GRADING AND GRAVEL SHALL BE PLACED IN ACCORDANCE WITH GRADING PLAN.
4. GRAVEL SHALL BE 6" ABC COMPACTED STONE.
2/CD-8.1
ENTRY ROAD CROSS SECTION - WITH DITCH
NTS
VAN ACCESSIBLE
AS REQUIRED
R7-8 SIGN, BOLT TO POST -
W/ 3/8" CADMIUM PLATED
BOLTS, NUTS, AND WASHERS.
NOTE. SIGNAGE TO PER
N.C.S.B.C. DETAILS R7-8
& R7 -8D
GALVANIZED 'U"
CHANNEL POST
PAVEMENT OR GROUND
CONDITION 1:
PEDESTRIAN PATH
DOES NOT PASS
UNDER OR AROUND
SIGN.
CONDITION 2:
PEDESTRIAN PATH
GOES BY, UNDER, OR
AROUND SIGN.
3/CD-8.1
ADA SIGNAGE
NTS
VAN
ACCESSIBLE
RESERVED
PARKING
- N -
MAXIMUM
PENALTY
$250
Ga
EDGE OF PAVING-\ 1 2.0'
4/CD-8.1
WHEEL STOP
NTS
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Sheet No.
CD -8.1
�18'10 CONCRETE
BASE (TYP)
NOTES. -
1. ENTRY KIOSK HAS 2 POSTS.
2. CONTRACTOR SHALL INSTALL ADEQUATE BRACING TO HOLD SIGNS IN PLACE UNTIL CONCRETE CURES.
J. SIGNS SHALL BE PROVIDED BY NCWRC AND INSTALLED BY SITE CONTRACTOR. CONTRACTOR SHALL
COORDINATE DELIVERY AND SIGN LOCATION WITH NCWRC.
4. CONCRETE FOOTING LOCATIONS SHALL BE BASED ON DELIVERED SIGN DIMENSIONS.
5. SITE SPECIFIC SIGNS SHALL BE ATTACHED TO KIOSK WITH WITH 14X1 " STAINLESS STEEL SCREWS WITH A
BONDED NEOPRENE WASHER.
6. SITE SPECIFIC SIGNS AND ADDITIOANL INFORMATION SIGNS TO BE DETERMINED BY AREA SUPERVISOR
1/CD-8.2
NCWRC ENTRANCE SIGN INSTALLATION
NTS
CA f
: a SEAL
W • ��G�,1
/III
NOTES:
TO BE
HOED BY
iC AND
ILLED BY
CONTRACTOR
?ETE
BASE (TYP)
1. KIOSK HAS 4 POSTS AND ROAD SIGN AT ENTRANCE HAS 2 POSTS.
2. CONTRACTOR SHALL INSTALL ADEQUATE BRACING TO HOLD SIGNS IN PLACE UNTIL CONCRETE CURES.
J. SIGNS SHALL BE PROVIDED BY NCWRC AND INSTALLED BY SITE CONTRACTOR. CONTRACTOR SHALL
COORDINATE DELIVERY AND SIGN LOCATION WITH NCWRC.
4. CONCRETE FOOTING LOCATIONS SHALL BE BASED ON DELIVERED SIGN DIMENSIONS.
5. KIOSK OUTER PANELS TO BE INSTALLED AT AN ORIENTATION OF 135' FROM CENTER PANEL.
6. ATTACHING KIOSK OUTER PANELS:
6.1. ATTACH THE WEDGE TO THE CENTER KIOSK USING TWO J" X 5" LAGS, COUNTERSINKING THE LAGS
ON THE BACKSIDE OF THE WING SO THEY ARE FLUSH
6.2. POSITION THE WING ONT THE WEDGE FLUSHING THE FACE TO MATCH THE CENTER KIOSK FRAM
AND USE TWO (2) J" X 8" LAGS TO SECURE THE WING TO THE WEDGE. LAG SHOULD
PENETRATE THRU THE WEDGE AND INTO THE CENTER KIOSK PORTION FRAME.
7. SITE SPECIFIC SIGNS SHALL BE ATTACHED TO KIOSK WITH WITH 101" STAINLESS STEEL SCREWS WITH
A BONDED NEOPRENE WASHER.
8. SITE SPECIFIC SIGNS AND ADDITIONAL INFORMATION SIGNS TO BE DETERMINED BY AREA SUPERVISOR
V2/CD-8.2
NCWRC KIOSK SIGN INSTALLATION
NTS
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File Name:
JordanLakePFA.dwg
Surveyed: ML
Designed: MVVL
Drawn: MWL
Approved: MVVL
Sheet No.
CIS -8.2
3
35" 41'50"N
35° 41'3(r N
Soil Map—Chatham County, North Carolina
(Little Beaver PFA) 3
35" 41'50"N
t6
35" 41'30"N
679200 67MM 679400 679500 67MM 679700 6798M C-1101 690000
3 ;
Map Scale: 1:4,480 if prinked on A landscape (11" x 8.5") sheet
b
� Meters
N 0 50 100 200 300
0D
o zoo 400 800 lzooo
Map project on: Web Mercator Comer coordinates: WCSB4 Edge tics: UTM Zone 17N WGS84
u'sDn Natural Resources Web Soil Survey 11/19/2018
Conservation Service National Cooperative Soil Survey Page 1 of 3
3953
250
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3952
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