20150361 Ver 1_401 Application_20150415

rA City of Greensboro
6 / North Carolina
April 10, 2015
Division of Water Quality,
401/Wetlands Unit,
1650 Mail Service Center,
Raleigh, NC, 27699 -1650
2 0' 503 6
Re Stream Bank Protection East Woodlyn Way, Greensboro, NC
Dear Sir /Madam
The City of Greensboro would like to notify your office of the proposed Stream Bank Stabilization
Greensboro, North Carolina The project's objective is to stabilize the existing eroded stream bank
and minimize sediment from downstream lake The City of Greensboro hereby request your
approval of this project at @ E Woodlyn Way by 2 Forest Lake Cir, , Greensboro, NC
Attached is the general information (vicinity map, and aerial map with pipe layout) regarding the
subject site for your review
Site: 2 Forest Lake Circle by East Wooslyn Way Stream Stabilization, Greensboro,
NC
Site Condition: Eroded Stream in a Residential Neighborhood
If you have any further questions, please call me at (336) 373 -2619 ( 2
Sincerely,
D
APR 1 4 2015
A e Idowu — Opera ions Management Supervisor DENR - WA RESOURCES
Water Resources Department, Stormwater Management 401 & BUFFER PERMITTING
Tel [phone]
Email ade Idowu@ci greensboro nc us
Attachment PCN Application Form & Application Fee ($240 00)
Vicinity Map and Pictures
Stormwater Aerial & Topography Maps
Construction Drawings
P 0 Box 3136 - Greensboro, NC 27402 -3136 - www greensboro -nc gov - (336) 373 -CITY (2489) - TTY # 333 -6930

o�ot 11AwrF59 pc
oaw c
Office Use Only
Corps action ID no
DWQ project no
Form Version 1 4 January 2009
Page 1 of 10
PCN Form — Version 1 4 January 2009
Pre - Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
la
Type(s) of approval sought from the Corps
❑X Section 404 Permit
❑ Section 10 Permit
lb Specify Nationwide Permit (NWP) number or General Permit (GP) number
1c
Has the NWP or GP number been verged by the Corps9
❑ Yes ❑X No
1 d
Type(s) of approval sought from the DWQ (check all that apply)
❑X 401 Water Quality Certification — Regular ❑X Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e
Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification
❑ Yes ❑X No
For the record only for Corps Permit
❑ Yes ❑X No
1f
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program
❑ Yes ❑X No
1g
Is the project located in any of NC's twenty coastal counties If yes, answer 1 h
below
❑ Yes X❑ No
1h
Is the project located within a NC DCM Area of Environmental Concern (AEC)
❑ Yes ❑X No
2.
Project Information
2a
Name of project
East Woodlyn Way Stream Bank Stabilization
2b
County
Guilford
2c
Nearest municipality / town
Greensboro
2d
Subdivision name
2e
NCDOT only, T I P or state probed no
'�,
3.
Owner Information
A1:'
3a
Name(s) on Recorded Deed
Brant T Harris
2
3b
Deed Book and Page No
006031 and 02255
4ot & Wqt
3c
Responsible Party (for LLC if
applicable)
RPE R
RM /TTiNES
3d
Street address
2 Forest Lake Circle
3e
City, state, zip
Greensboro, NC 27407
3f
Telephone no
3g
Fax no
3h
Email address
Page 1 of 10
PCN Form — Version 1 4 January 2009

4.
Applicant Information (if different from owner)
4a
Applicant is
❑ Agent ❑ Other, specify Municipality
4b
Name
Ade Idowu
4c
Business name
(if applicable)
City of Greensboro
4d
Street address
PO Box 3136
4e
City, state, zip
Greensboro, NC 27402
4f
Telephone no
(336) 373 -2619
4g
Fax no
4h
Email address
ade Idowu @greensboro -nc gov
5.
Agent/Consultant Information (if applicable)
5a
Name
5b
Business name
(if applicable)
5c
Street address
5d
City, state, zip
5e
Telephone no
5f
Fax no
5g
Email address
Page 2 of 10

B.
Project Information and Prior Project History
1.
Property Identification
la
Property identification no (tax PIN or parcel ID)
00110684BO86700083
lb
Site coordinates (in decimal degrees)
I Latitude 36 033382 Longitude -79 891916
1 c
Property size
121 acres
2.
Surface Waters
2a
Name of nearest body of water to proposed project
Sedgefield Lake
2b
Water Quality Classification of nearest receiving water
2c
River basin
Haw River Basin
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
Existing stream bank is eroding and in need of stabilization
3b
List the total estimated acreage of all existing wetlands on the property 0
3c
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property 140
3d Explain the purpose of the proposed project
To slope back stream bank, stabilize with fiber matting, install about 24 feet of boulder wall at the bend, and seed /straw as necessary
3e Describe the overall project in detail, including the type of equipment to be used
Slope back stream bank 5 1, stabilize with 8" coir log/fiber matting, seed & straw Install about 24 feet of boulder wall at the bend with the use of backh
O
4.
Jurisdictional Determinations
4a
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
❑ Yes ❑X No ❑ Unknown
Comments
4b
If the Corps made the jurisdictional determination, what type
of determination was made?
❑ Preliminary ❑ Final
4c
If yes, who delineated the jurisdictional areas?
Name (if known)
Agency /Consultant Company
Other
4d
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 prior phases) in the past?
❑Yes ❑X No ❑ Unknown
5b
If yes, explain in detail according to "help file" Instructions
6.
Future Project Plans
6a
Is this a phased project?
❑ Yes ❑X No
6b
If yes, explain
Page 3 of 10
PCN Form — Version 1 4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
la Which sections were completed below for your project (check all that apply)
❑ Wetlands 0 Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted
2a
Wetland impact
number
Permanent (P) or
Temporary
2b
Type of impact
2c
Type of wetland
2d
Forested
2e
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes /No
W2 -
Choose one
Choose one
Yes/No
W3 -
Choose one
Choose one
Yes /No
W4 -
Choose one
Choose one
Yes /No
-
W5 -
Choose one
Choose one
Yes /No
-
W6 -
Choose one
Choose one
Yes /No
2g Total Wetland Impacts:
2h Comments
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted
3a
Stream impact
number
Permanent (P) or
Temporary (T)
3b
Type of impact
3c
Stream name
3d
Perennial (PER) or
intermittent (INT)?
3e
Type of
jurisdiction
3f
Average
stream
width
(feet)
3g
Impact
length
(linear
feet)
S1 P
Stabilization
Unknown
PER
DWQ
7
75
S2
Choose one
S3
Choose one
S4
Choose one
S5
Choose one
-
S6
Choose one
-
3h Total stream and tributary impacts
31 Comments
Page 4 of 10
PCN Form — Version 14 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U S then indiv ually list all o en water impacts below
4a
Open water
impact number
Permanent (P) or
Temporary
4b
Name of waterbody
(if applicable)
4c
Type of impact
4d
Waterbody
type
4e
Area of impact (acres)
01
Choose one
Choose
02
Choose one
Choose
03
Choose one
Choose
04
Choose one
Choose
4f Total open water impacts
4g Comments
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below
5a
Pond ID number
5b
Proposed use or
purpose of pond
5c
Wetland Impacts (acres)
5d
Stream Impacts (feet)
5e
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f Total:
5g Comments
5h Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no
51 Expected pond surface area (acres)
51 Size of pond watershed (acres)
5k Method of construction
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below If yes, then individually list all buffer impacts
below If any impacts require mitigation, then you MUST fill out Section D of this form
6a. Project is in which protected basin?
❑ Neuse ❑ Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other
6b
Buffer Impact
number —
Permanent (P) or
Temporary
6c
Reason for impact
6d
Stream name
6e
Buffer
mitigation
required?
6f
Zone 1
impact
(square
feet )
6g
Zone 2
impact
(square
feet
61
Yes /No
62
Yes/No
63 _
Yes/No
64 -
Yes /No
B5 -
Yes /No
B6
Yes /No
6h Total Buffer Impacts:
61 Comments
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
la Specifically describe measures taken to avoid or minimize the proposed impacts in designing project
The proposed task is necessary to avoid sediment transport downstream toward Sedgefield Lake
1 b Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques
Sod & erosion control devices will be implemented before and during construction of proposed project Land disturbance will not take place without the
start of construction
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a Does the protect require Compensatory Mitigation for
impacts to Waters of the U S or Waters of the State?
❑ Yes ❑X No
2b If yes, mitigation is required by (check all that apply)
❑ DWQ ❑ Corps
2c If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑ Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a Name of Mitigation Bank
3b Credits Purchased (attach receipt and letter)
Type Choose one
Type Choose one
Type Choose one
Quantity
Quantity
Quantity
3c Comments
4. Complete if Making a Payment to In -lieu Fee Program
4a Approval letter from in -lieu fee program is attached
❑ Yes
4b Stream mitigation requested
linear feet
4c If using stream mitigation, stream temperature
Choose one
4d Buffer mitigation requested (DWQ only)
square feet
4e Riparian wetland mitigation requested
acres
4f Non - riparian wetland mitigation requested
acres
4g Coastal (tidal) wetland mitigation requested
acres
4h Comments
5. Complete if Using a Permittee Responsible Mitigation Plan
5a If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan
Page 6 of 10
PCN Form — Version 1 4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation
Yes ❑X No
6b If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation Calculate the
amount of mitigation required
Zone
6c
Reason for impact
6d
Total impact
(square feet)
Multiplier
6e
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
15
6f Total buffer mitigation required:
6g If buffer mitigation is required, discuss what type of mitigation is proposed (e g , payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund)
6h Comments
Page 7 of 10

E.
Stormwater Management and Diffuse Flow Plan (required by DWQ)
1.
Diffuse Flow Plan
1a
Does the project include or is it adjacent to protected riparian buffers identified
❑ Yes ❑X No
within one of the NC Riparian Buffer Protection Rules?
lb
If yes, then is a diffuse flow plan included? If no, explain why
❑ Yes ❑X No
2.
Stormwater Management Plan
2a
What is the overall percent imperviousness of this project?
ova
2b
Does this project require a Stormwater Management Plan?
❑ Yes ❑ No
2c
If this project DOES NOT require a Stormwater Management Plan, explain why
2d
If this probed DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan
2e
Who will be responsible for the review of the Stormwater Management Plan?
3.
Certified Local Government Stormwater Review
3a
In which local government's jurisdiction is this ro ect*7
City of Greensboro
❑ Phase II
❑ NSW
3b
Which of the following locally - implemented stormwater management programs
❑ USMP
apply (check all that apply)
❑ Water Supply Watershed
❑ Other
3c
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached?
4. DWQ Stormwater Program Review
❑Coastal counties
❑HQW
4a
Which of the following state - implemented stormwater management programs apply
❑ORW
(check all that apply)
[]Session Law 2006 -246
[]Other
4b
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑X No
attached
5. DWQ 401 Unit Stormwater Review
5a
Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b
Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 8 of 10
PCN Form — Version 14 January 2009

F.
Supplementary Information
1.
Environmental Documentation (DWQ Requirement)
la
Does the project involve an expenditure of public (federal /state /local) funds or the
❑ Yes ❑ No
use of public (federal/state) land?
lb
If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes ❑ No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c
If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes ❑ No
letter)
Comments
2.
Violations (DWQ Requirement)
2a
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H 0500), Isolated
Wetland Rules (15A NCAC 2H 1300), DWQ Surface Water or Wetland Standards,
❑ Yes ❑X No
or Riparian Buffer Rules (15A NCAC 26 0200)?
2b
Is this an after -the -fact permit application?
❑Yes ❑X No
2c
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s)
3.
Cumulative Impacts (DWQ Requirement)
3a
Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes X❑ No
additional development, which could impact nearby downstream water quality?
3b
If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy If you answered "no," provide a short narrative description
4.
Sewage Disposal (DWQ Requirement)
4a
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
Page 9 of 10
PCN Form — Version 14 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a Will this project occur in or near an area with federally protected species or
habitat?
❑ Yes ❑X No
5b Have you checked with the USFWS concerning Endangered Species Act
impacts?
❑ Yes ❑X No
5c If yes, indicate the USFWS Field Office you have contacted
-
5d What data sources did you use to determine whether your site would impact Endangered Species or Designated Cntical
Habitat?
6. Essential Fish Habitat (Corps Requirement)
6a Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑X No
6b What data sources did you use to determine whether your site would impact Essential Fish Habitat?
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
status (e g , National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
❑ Yes ❑ No
7b What data sources did you use to determine whether your site would impact historic or archeological resources?
8. Flood Zone Designation (Corps Requirement)
8a Will this project occur in a FEMA - designated 100 -year floodplain?
❑ Yes ❑X No
8b If yes, explain how project meets FEMA requirements
8c What source(s) did you use to make the floodplain determination?
Effective special fllood hazard area, A, AE & AE, Floodway map
Ade Idowu
Applicant/Agent's Printed Name
4/10/2015
Date
App nt/Agent's Signature
(Agent's signature is valid only if an authorization
letter from the applicant is prowded
Page 10 of 10

East Woodlyn Way - Pictures (Upstream & Downstream)
Upstream picture of existing culvert
Downstream picture of existing culvert

L
SS
CONFIRM LOCATION OF EX. SANITARY / SS
SEWER LITERAL E LATERAL
STONE WALL \
DOES NOT ENCROACH ON TERAL�
EN h
•,/ S S
N
N
SCALE:
1" = 10' H
y/ Er
-MOVE EXCESS RIP RAP FROM INVERT
OF CHANNEL — WORK FROM END OF
ENERGY DISSIPATOR TO TREEUNE
NATURAL FIBER MATTING
^-2 " -6" TOPSOIL
(SUFFICIENT TO SUPPORT
VEGETATION GROWTH
KEY IN FIBER MATTING 1' -0"
AND SECURE BEHIND STONE GFtF
CLASS 2 RIP RAP
OR EQUIVALENT SIZED
RECTANGULAR STONES \
FOOTER STONE AT
OR BELOW STREAM
BED INVERT
TOE RIPRAP
BELOW SCOUR DEPTH
POROUS BACKFILL
STONE TOE PROTECTION
NOT TO SCALE
APPROX. 24 L.F. OF PROPOSED
— STONE TOE PROTECTION
SEE DETAIL BELOW
SS
SAS S S
11 PROVIDE BENCH ON INSI OF BEND
LAY BACK SLOPE AT 5:1; 1 TALL 8•
WI COIR LOG AT TOE AND MAT NCH
f! SEE DETAIL BELOW
O
8
\ Il
s
s
J '
KEY IN 6" DEEP
BACKFILL W/ TOPSOIL
AND TAMP
STAPLES OR STAKES
2' X 2' SPACING
ALONG BANK
BENCH MARKS I REVISIONS
SIDEWALK
Q
0
co /
�SS %
3 � /
r0
r S
Q r
I I r
3 I
b
8" COIR LOG — STAKE
PER MANUFACTURERS
RECOMMENDATIONS
o L
O O 3
F
FOREST
0
a o
CONTRACTOR NOTES
THE CONTRACTOR SHALL INSTALL A COFFER DAM ABOVE THE WORK ZONE TO TRAP
THE LOW FLOW. THE CONTRACTOR SHALL USE AN ADEQUATELY SIZED PUMP TO
HANDLE THE LOW FLOW AROUND THE WORK ZONE.
IF THE SITE HAS TO BE DEWATERED, THE CONTRACTOR SHALL PUMP THE WATER
THROUGH AN ADEQUATELY SIZED STILLING BASIN OR THROUGH A SILT BAG. THE
DEWATERING SILT BAG IS TO BE LOCATED AS SHOWN ON THE PLAN. ALL DEWATERING
OF THE CONSTRUCTION AREA IS TO PASS THROUGH THE SILT BAG.
SEEDING AND MULCHING OR A SUITABLE GROUND COVER SHALL BE PROVIDED ON ALL
DISTURBED AREAS WITHIN 7 WORKING DAYS OR 14 CALENDAR DAYS (WHICHEVER IS
SHORTER) FOLLOWING COMPLETION OF THE STORM SEWER INSTALLATION.
CONSTRUCTION SEQUENCE
1. FOLLOW SECTION CUT DETAILS FOR STREAM BANK STABILIZATION - SEE BELOW
2. INSTALL FIBER MATTING ALONG STREAM BANKS PARALLEL TO STREAM FLOW
3. SEED BENCH AND SLOPES WITH SEASONAL MIX AND RE -SEED AFTER 14 DAYS IF
NO GROWTH
4. INSTALL SILT FENCE ALONG BANK PARALLEL TO FLOW IF CONSTRUCTION TAKES
MULTIPLE DAYS
KEY IN 6" DEEP
BACKFILL W/ TOPSOIL
AND TAMP
NATURAL FIBER MATTING
� 1 MPX P`ON
G BENCH
STAPLES OR STAKES
2' X 2' SPACING
ALONG BANK
BENCH WITH COIR LOG
NOT TO SCALE
CONTRACT SHEET
III OF
SENSITIVE INFORMATION
Not to be copied or
distributed without the
0 -press written permissioi
0f the City of Greensbor(
®OT
NPDES
General Permit
Applies
DISTURBED AREA =
X.XX Acres
GIS DISCLAIMER
lb)sots on thl. map ehmm with a dotts
11 tyle w.re nat a yed, they were
ptled by phatoprammetrla m.thad.
am0oble the G— rophlc Iaformatlon
System (CIS) eokware ..W by the City
of Greensboro.
2 " -6"
TOPSOIL
JOB NO. P - CITY OF GREENSBORO K—
DESIGNED 1/114/'15 BY JAH ENGINEERING DIVISION
CONST. SURVEY eY EAST WOODLYN WAY STREAM STABILIZATION SHEET NO.
CHECKED BY Al BETWEEN HILLTOP ROAD AND FOREST LAKE CIRCLE
OF
SCAI F- SEE ABOVE AT REAR OF 2 FOREST LAKE CLRCLF 1
0

WATER
Resources
City of Greensboro
r
This map is for representational
purposes only.
Stormwater Management Aerial Map
East Woodlyn Way Stream Bank Stabilization
�a
i
Stream Bank Stabilization
Site
SWM
*
Revisit_ Locations
Address Points
Contou r at 20 feet
Contour at 2 feet
Guilford County Parcels
Combination Inlets
Curb Inlets
Grate Inlets
®
Storm Manholes
¢
Pipe Jos
®
Spillways
F7
Yard Inlets
Channels
Culvert Barrels
Flow Connectivity Lines
i
Pipes
Swales
Waterbodies
•
Clean Outs
r
Private
Public
•
Sewer Fittings
•
Private
•
Public
9
Sewer Valves
N
Waste Water Treatment
---- --- - - - --
Private
Public
-------- - - - - -►
Private
Public
Sewer Service Lines
•
Automatic Flushers
•
Backflow Preventers
=
Blow Offs
Chlorination Stations
+
Hydrants
■
Meters
■
Pump Stations
Water Fittings
Water Tanks
Water Treatment Plants
r➢
Water Valves
---- --- - - - - - --
Private
Public
—
Water Service Lines
County Centerline
FIRM Panel Grid
uraaana.�a
tG8
Red: Band-1
Green: Band –2
1:600
1 inch = 50 feet
7�
W
t�
rQ'
o
r 3�
11L
N

WATER
Resources
City of Greensboro
y
J �
- - --j--
Stormwater Management Planimetric View
East Woodlyn Way Stream Bank Stabilization
This map is for representational
purposes only.
0,
0
Stream Bank Stabilization
Site
"Ji 2 C-3 --I
r
SWM
* Revisit Locations
Contour at 20 feet
Contour at 2 feet
Guilford County Parcels
Combination Inlets
Curb Inlets
Grate Inlets
® Storm Manholes
O Pipe IOs
® Spillways
Yard Inlets
Channels
Culvert Barrels
Flow Connectivity Lines
Pipes
Swales
Walerbodies
• Clean Outs
Private
Public
• Sewer Fittings
• Private
• Public
6 Sewer Valves
Waste Water Treatment Pla
----- - - - - -- Private
Public
-- -- - --- - + Private
- - - - -- - ► Public
Sewer Service Lines
• Automatic Flushers
• Backflow Preventers
j Blow Offs
■ Chlorination Stations
• Hydrants
■ Meters
■ Pump Stations
Water Fittings
• Water Tanks
Water Treatment Plants
Water Valves
- - - - -- Private
Public
- -- - Water Service Lines
• Tower
Streams
Building
ParkRec
PVArea
PVOrive
SwimmingPool
Tank
County Cenlerline
N
W+
S
1:600
1 inch = 50 feet