20011844 Ver 1_COMPLETE FILE_20011217

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Gregory J. Thorpe, Ph.D.
Acting Director
Division of Water Quality
RECEIPT
February 19, 2002
Mr. Roderick Chisholm
US Army XVIII Airborne Corps
ATTN: AFZA-PWBC
Building 3-1631 Butner Road
Fort Bragg, North Carolina 28307-5000
Dear Mr. Chisholm:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
s 5,/"i
Subject: DWQ 11844
Project: bat Aviation Brigade Barracks Complex
County: Cumberland
F"Fe 2 2
The North Carolina Wetlands Restoration Program (NCWRP) received two checks
totaling $ 50,875.00 check numbers 20010 and 20011, as payment for the compensatory
mitigation requirements of the 401 Water Quality Certification, Certificate of Authorization,
and/or Section 404 Permit issued for the subject project. This receipt serves as notification
that the compensatory mitigation requirements for this project have been satisfied. Please
note that you must also comply with all other conditions of this certification and any other
state, federal or local government permits or authorization associated with this activity.
The NCWRP, by acceptance of this payment, acknowledges that the NCWRP is
responsible for the compensatory mitigation requirements associated with the subject
permit and agrees to provide the compensatory mitigation as specified in the permit. The
NCWRP will restore 215 linear feet of stream and 0.880 acres of riparian wetlands in
Cataloging Unit 03030004 of the Cape Fear River basin.
If you have any questions or need additional information, please contact Crystal
Braswell at [phone].
eiEF6rre Ronalll,
Pro gram Manager
cc: Rob Ridings, Wetlands/401 Unit
file
Wetlands Restoration Program 1619 Mail Service Center Raleigh, NC 27699-1619 [phone] Customer Service
320 West Jones Street Raleigh, NC 27603 Fax: [phone] 623-7748
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
`..Ir s (b
January 15, 2002
US Army Airborne Corps
XVIII Airborne Corps and Fort Bragg
ATTN: AFZA - PWBC
Building 3-1631 Butner Road
Fort Bragg, North Carolina 28307-5000
Subject: Project: Combat Aviation Brigade Barracks Complex
County: Cumberland
DWQ #: 01 -
The purpose of this letter is to notify you that the North Carolina Wetlands Restoration
Program (NCWRP) will accept payment for stream and riparian wetland impacts associated with
the subject project. Stream and wetland impacts will be mitigated in accordance with the
Memorandum of Understanding between the N. C. Department of Environment and Natural
Resources and the U. S. Army Corps of Engineers dated November 4, 1998.
Based on the information supplied by you in a letter dated January 9, 2002, the
stream and riparian wetland restoration that is necessary to satisfy the compensatory mitigation
requirements for this project is summarized in the following table. The maximum amount of
mitigation that the NCWRP will accept for this project is also indicated in this table.
Stream Riparian Wetlands Riparian Buffer
(linear (acres) (ft2)
feet
Impact 215 0.454
.Mitigation Max. 430 0.908
As requested, the NCWRP will provide stream and riparian wetland mitigation as
specified in the 401 Water Quality Certification and/or Section 404 Permit for impacts associated
with the subject project in Cataloging Unit 03030004 of the Cape Fear River basin.
If you have any questions or need additional information, please contact Crystal Braswell
at [phone].
S' ' rely
,FIlonald E. F rell,
Program Manager
cc: Rob Ridings, Wetlands/401 Unit
Allen Davis, USACOE
Ken Averitte, FRO
file
Gregory J. Thorpe, Ph.D.
Acting Director
Division of Water Quality
Wetlands Restoration Program 1619 Mail Service Center Raleigh, NC 27699-1619 [phone] Customer Service
320 West Jones Street Raleigh, NC 27603 Fax: [phone] 623-7748 FNR
O?O? WAT ?9pG
co [Ma ?L?l ul3
r
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
January 23, 2002
DWQ# 01-0844
Cumberland County
Roderick Chisholm
US Army XVIII Airborne Corps
ATTN: AFZA-PW BC
Ea i3ding 3-1631 Butner Road
Fort Bragg, NC, 28307-5000
APPROVAL of 401 Water Quality Certification with Additional Conditions, Wetland Restoration Program
Dear Mr. Chisholm:
You have our approval, in accordance with the attached conditions, to place fill in 0.45 acre of wetlands and 215 linear
feet of streams in order to construct the Combat Aviation Brigade Barracks Complex on Fort Bragg, Cumberland County, as
described in your application received by the Division of Water Quality on December 17, 2001. After reviewing your
a !cation, we have determined that this fill is covered by General Water Quality Certification Numbers 3288, 3289, and
=, whk,:n can be viewed on our web site at httD-l/h2o.enr.state.nc.us/ncwetlands. This Certification allows you to use
Na nwide Permit Numbers 12, 14 and 39 when issued by the U.S. Army Corps of Engineers. In addition, you should get
amy other federal, state or local permits before you co ahead with your project including (but not limited to) Sediment and
Elusion Control, Non-Discharge and Water Supply Watershed regulations. Also this approval will expire when the
a rnpanying 404 permit expires unless otherwise specified in the General Certification.
val is only valid for the purpose and design that you described in your application. If you change your
This ap pro
pmt, you must notify us in writing and you may be required to send us a new, application for a new certification. If the
p-m.merty is solo, the new owner must be g ven a copy of the Certification and approval letter and is thereby responsible for
plying W-M all con®Itions. If total wetland fills for this project (now or in the future) exceed one acre, compensatory
rr6 ation rimy be required as described in 15A NCAC 2H .0506 (h). For this approval to be valid, you must follow the
ct-,,oiuons hsted in the attached certification as well as the additional conditions listed below:
1- We urx7erstand tf>al you have chosen-d contribute to the Wetland Restoration Program in order to compensate for the
impacts tD streams- In accordance with 15A NCAC 2R .0402 and 15A NCAC 2B .0242(7), this contribution will satisfy
our compensatory mitigation requirements under 15A NCAC 2H.0506(h) and 15A NCAC 2B.0233(10). Until the
Wedand Restoration Program receives and clears your check (made payable to: DENR - Wetlands Restoration
Program), stream impacts (irtcfuding fib shall riot occur. Mr. Ron Ferrell should be contacted at [phone] if you
have any questions concerning the Weiland Restoration Program. You have one month from the date of this
Certification to make this payment. For accounting purposes, this Certification authorizes the fill of 215 linear feet of
streams in the Cape Fear River ano sub-basin, Cataloging Unit 03030004, and 215 linear feet of stream mitigation are
requiirecL Please be aware that the Weiland Restoration Program (WRP) rules require rounding of wetland impacts to
the nearest quarter acre (15A NCAC 2R -0503(b)).'
2 StormyseW shall be directed at non-erosive vekxZes from each pond into the nearest wetlands.
If you do not acct any of the condi ons of this certification, you may ask for an adjudicatory hearing. You must act
v&ii n 60 daps of the date that you receive this letter To ask for a hearing, send a written petition which conforms to
Cdrapter 150E of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh,
K.C. 27611-7447. This certification and its condr6ons are final and binding unless you ask for a hearing.
This 1etlier completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have
ons, please calf Ken Averitte in DWCYs Fayette ile Regional Office at 910-486-1541 or Cyndi Karoly at in Raleigh
9119-733-97211.
North Carolina Division of Water Qwuty, 401 Ifi elands Certification Unit,
1650 11 fai Service Center, Raleigh, NC 276°. 1650 (Mailing Address)
2321 Crabtree Blvd._ Pafeiah. NC 27604-2255n-ocation)
Page 2 of 2
ry
eg ry J. Thorpe, Ph .D.,
Attachments
cc: Corps of Engineers Wilmington Regulatory Field Office
Fayetteville DWO Regional Office
Central Files
File Copy
Amber Coleman, 139-G Technology Drive, Gamer, NC, 27529
010844
01-1844
Subject: 01-1844
Date: Thu, 17 Jan 2002 16:49:06 -0500
From: Ken Averitte <Ken.Averittegncmail.net>
Organization: NC Dept. of Environment and Natural Resources
To: John Dorney <[e-mail]>, Cyndi Karoly <[e-mail]>
the subject project comments are on FMP, although Paul Rawls has not
"signed" it.
,I'm not too sure I understand yourquestion about "is sheetflow
,Ihn
ugh wetlands after then ok?" If they can eep the discharge rate '
wn like they say, it should not be an issue (I think) Formerly
orested site now has all the trees gone, except in the buffers. The,
O
andscape will be all hardened or grassed, w/curb and gutter... so
ttle infiltration,, which,, M4y-affect seeps.
e e-it discharged into wl than stream channel`:
Right now, the site supv. is anxious, to say the least, about getting ok
to put in the road x-ings so he can start moving dirt from one side to
the other. I told him he really needed to have all ok'd first. (He also
indicated he could get $25K mitigation check pdq if it was a problem)
What is the expected issue date of the 401, or do you have an idea, or
is ad info necessary?
thanks
KA
Oh yeah, I got an acknowledgement from Ron Ferrell for
payment re: DWQ project 010314. Looked on FMP and this
project. What would have triggered mitigation on sewe
fyua?¢,s?
?A„
AA W
,e va5`u&
VuW I
( ? so S)?
Xf/

$12,000 WRP
is a sewer line
1' e?
,? S L40

MEMORANDUM
TO: John Dorney Regional Contact:
Non-Discharge Branch WO Supervisor:
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name US Army XV1I1 Airborne Corps (Barracks)
Project Number 01 1844
Recvd From APP
Received Date 12/17101 Recvd By Region
County Cumberland
County2
Region Fayetteville
Project Type Brigade Barracks Complex
Certificates Stream
Permit- Wetland Wetland Wetland Stream Class Acres
Type Type Impact Score Index Prim. Supp. Basin Req.
Stream Impacts (ft.)
Feet am
Req.
F 12 F__ FT O N F 1 R-23-27 F _C_F- X0,614. F_ F_ F_ I
F 14 Stream OYO N ? 18-23-?7 F 77--30,614. F- 21.00 215 00j
39 OTH O Y O N F- 18-23-27 ?I - 30,614. 0.45 ? r-•F_
Mitigation Wetland
MitigationType Type Acres Feet
Wetland WRP I H Wl' 0.45
F_ I F_
Is Wetland Rating Sheet Attached? Q Y 0 N Did you request more info? Q Y 0 N
Have Project Changes/Conditions Been Discussed With Applicant? QQ Y ® N
Is Mitigation required? Q Y Q N Recommendation: Q Issue # Issue/fond 0 Deny
Provided by Region: Latitude (ddmmss) 350897 Longitude (ddmmss) 790081
Comments:
Two of the "road cr ossings" are 20 ft, wide culverted crossings. one a bridge, all on separate drains.
Impacts have been avoided to the maximum extent possible. (I would have some called the 105 ft,
x-ing an intermitten t stream rather than perennial. It has a limited watershed and is primarily seep
fed except in precip events.) The dry storm water ponds (dl?j because of bird issues adjacent to the
air base) are said to discharge the 10 yr.storm at approx. 3 to 4 cfs per S. Brown of Rose Grp. Point
of discharge to be o atp ion. (401 should require
n high ground where possible w/energv
non-erosive rate w/ e
dissipator). Since the change in landscape may ultimo remove some of the
seepage{eeding th ese drains, the SW ponds should discharge as far up the drains as possible to
achieve max. overl and flow.(This also should be a condition of 401). Veloci should not be a
problem w/overland flow as design was to remain =<predev. discharge rate. COE has signed
delineation that is d ebatable (moot point), however, eject includes stream buffers and contractor
seems to be taking erosion control measures seriously
, including protection of what I contend is a
WL. ,
0
cc: Regional Office
Central Office Page Number 1
Facility Name US Army XVIII Airborne Corps (Barracks) County Cumberland
Project Number 01 1844 Regional Contact: Ken Averitte
Date:
Comments (continued from page 1):
cc: Regional Office
Central Office Page Number 2
Re 01-1844
Subject: Re: 01-1844
Date: Tue, 22 Jan 2002 09:53:14 -0500
From: Ken Averitte <[e-mail]>
Organization: NC Dept. of Environment and Natural Resources
To: Cyndi Karoly <[e-mail]>
Gladly.
Project: Combat Aviation Brigade Barracks Complex
County: Cumberland
DWQ #: 011844
"........the NCWRP will accept payment for stream and riparian wetland impacts associated with the subject
project ........ impacts will be mitigated in accordance with the MOU between the NCDENR and the USACE
dated Nov. 4, 98.
........the Maximum amount of mitigation that the NCWRP will accept for this project is:
Stream (l.f.) Riparian WL (ac.)
Impact 215 0.454
Mitigation Max. 430 0.908
As requested, the NCWRP will provide stream and riparian wetland mitigation as specified in the 401 WQ
Certification and/or Section 404 permit for impacts associated with the subject project in Cataloging Unit
03030004 of the Cape Fear River Basin. etc. etc. etc........"
This is at a 2:1 ratio as dictated by the COE, I think.
Cyndi Karoly wrote:
Ken, the letter did not make it to the file. Our *&A%$&*( fax machine is broke.
Could you please send me a reply with the details of what WRP agreed to? i.e. #
feet/acres of mitigation approved, river/sub-basin id #'s.
Thanks. Happy Monday.
Ken Averitte wrote:
> Cyndi,
> I guess by now you have Ron Ferrells letter accepting this project. If not, let
> me know and I'll fax it to you.
> Cyndi Karoly wrote:
> > Ken and John - I've got Todd taking a look at the file to make sure all the
> > stormwater details are finalized per your notes below. Ken, we're waiting
> > on a letter from the WRP accepting or rejecting this project. WRP would
> > have gotten this app around 12/23 (if it was mailed properly), so hopefully
> > we'll get a response next week. If the applicant keeps inquiring, please
> > let them know that we're awaiting approval from WRP.
> > Ken Averitte wrote:
1 of 2 1/22/02 9:57 AM
Re: 01-1844
el--

> > > the subject project comments are on IMP, although Paul Rawls has not
> > > "signed" it.
> > > John, I'm not too sure I understand your question about "is sheetflow
> > > through wetlands after then AT' If they can keep the discharge rate
> > > down like they say, it should not be an issue (I think) Formerly
> > > forested site now has all the trees gone, except in the buffers. The
> > > landscape will be all hardened or grassed, w/curb and gutter... so
> > > little infiltration, which may affect seeps.
> > > Rather see it discharged into wl than stream channel.
> > > Right now, the site supv. is anxious, to say the least, about getting ok
> > > to put in the road x-ings so he can start moving dirt from one side to
> > > the other. I told him he really needed to have all ok'd first. (He also
> > > indicated he could get $25K mitigation check pdq if it was a problem)
> > > What is the expected issue date of the 401, or do you have an idea, or
> > > is ad info necessary?
> > > thanks
> > >KA
> > > Oh yeah, I got an acknowledgement from Ron Ferrell for $12,000 WRP
> > > payment re: DWQ project 010314. Looked on FMP and this is a sewer line
> > > project. What would have triggered mitigation on sewer line?
2 of 2 1/22/02 9:57 AM

Office Use Only:; Form Version Apri12001
USACE Action ID No. DWQ No. 1 ® 4 4
If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than
leaving the space blank.
r coo%
1. Processing I 1_1
t
1. Check all of the approval(s) requested for this project: ( 7 !
® Section 404 Permit
? Section 10 Permit
® 401 Water Quality Certification
? Riparian or Watershed Buffer Rules
2. Nationwide, Regional or General Permit Number(s) Requested: 12, 14, 39
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
_---knot required, check here: ?
gent into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
ion of impacts (see section VIII - Mitigation), check here:
H. '-A-6plicant Information
Owner/Applicant Information
Name: US Army XVIII Airborne Corps
Mailing Address: XVIII Airborne Corps and Fort Bragg
ATTN: AFZA-PWBC
Building 3-1631 Butner Road
Fort Bragg. NC 28307-5000
Telephone Number: [phone] Fax Number:
E-mail Address:
2. Agent 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: Amber Coleman
Company Affiliation: BLUE: Land Water Infrastructure PA
Mailing Address: 139-G Technology Drive
Garner NC 27529
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: alcoleman ?a blwi.com
Page 3 of 12

M. 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
USACE 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: Combat Aviation Brigade Barracks Complex
2. T.I.P. Project Number (NCDOT Only): n/a
3. Property Identification Number (Tax PIN):
4. Location
County: Cumberland Nearest Town: Spring; Lake
Subdivision name (include phase/lot number): n/a
Directions to site (include road numbers, landmarks, etc.): (from Raleigh) I-40 East to I-95
South (Exit 328) At Exit 56 take I-95 Business toward Fayetteville. Go approximately 8
miles and turn right (west) onto Owen Drive. Owen Drive will become the All-American
Expressway. Follow into Fort Bragg Military Base and turn left onto Longstreet Road.
Project area is to the right.
5. Site coordinates, if available (UTM or Lat/Long): N35°08.966' W79°00.881'
(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. Describe the existing land use or condition of the site at the time of this application:
Undeveloped - Forested
7. Property size (acres): Approximately 113 acres
8. Nearest body of water (stream/river/sound/ocean/lake): Tank Creek
9. River Basin: Cape Fear
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http: i2o.enr.state. nc.u ", adminimaLs .)
Page 4 of 12
10. Describe the purpose of the proposed work: Installation of barracks, recreation, medical,
training, and dining facilities for Fort Bragg. Structures include utility lines, roads, and
IV.
V.
11. List the type of equipment to be used to construct the project: Equipment will include all
equipment used to construct typical construction projects.
12. Describe the land use in the vicinity of this project: Developed - Military
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.
Future Project Plans
Are any additional permit requests anticipated for this project in the future? If so, describe the
anticipated work, and provide justification for the exclusion of this work from the current
application:
No additional permit requests anticipated
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 (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
Page 5 of 12
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.
1. Wetland Impacts
Wetland Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
(yes/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
TI-1 Temp. (NWP12) 0.036 no 0 Forested wetland
TI-2 Temp. (NWP12) 0.039 no 200 Forested wetland
TI-3 Temp. (NWP12) 0.021 no 0 Forested wetland
TI-4 Temp. (NWP12) 0.037 no 80 Forested wetland
TI-5 Temp. (NWP12) 0.059 no 0 Forested wetland
TI-6 Temp. (NWP12) 0.109 no 0 Forested wetland
WI-1 Grading (NWP39) 0.011 no 80 Forested wetland
WI-2 Fill (NWP 14) 0.185 no 0 Forested wetland
WI-3 Fill (NWP 14) 0.255 no 0 Forested wetland
W14 Grading (NWP39) 0.003 no 90 Forested wetland

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at http://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.)
List the total acreage (estimated) of existing wetlands on the property: 20 acres
Total area of wetland impact proposed: Temporary: NWP 12 - 0.301 acres,
Permanent: NWP 14 - 0.440 acres NWP 39 - 0.014
2. Stream Impacts, including all intermittent and perennial streams
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 Impact (please specify)
TI-1 Temp. (NWP12) 20 UT to Tank Creek 2.5 ft Perennial
TI-3 Temp. (NWP12) 20 Tank Creek 15 R Perennial
TI-5 Temp. (NWP12) 20 UT to Tank Creek 2.5 ft Perennial
TI-6 Temp. (NWP12) 20 UT to Tank Creek 3 ft Perennial
SI-1 Culv
N n 4)ap 105 UT to Tank Creek 2.5 ft Perennial
(
SI-2 Culv
)ap
1 110 UT to Tank Creek
F F 3 ft F Perennial
(
1
List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net losstgain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, 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.
Page 6 of 12

* * Stream names can be found on USGS topographic maps. If 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
wwww.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., %y-w.tgpozone.com,
www.mapguest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site:Temporary: NWP12 - 801f,
Permanent: NWP 14 - 215 if
Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any
other Water of the U. S.
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,
bay, ocean, etc.)
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
4. 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 application.
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 impacts.
This facilitv is an important addition to Fort Brae and will provide soldiers with state-of-the-art
training and medical facilities, improve out-dated housing options available increase recreational
areas, and improve morale Wetlands are extensive onsite and without minimal impacts would
inhibit access across the property Site design was originally based on a delineation that depicted
a smaller extent of wetlands Once the new delineation was complete indicating a larger extent of
Page 7 of 12
wetlands, extensive redesign was undertaken to avoid and minimize impacts to wetlands.
Impacts to wetlands had initially been anticipated to be 2 to 3 acres. Recreational facilities,
dumpster areas, and parking areas were all rearranged to reduce wetland impacts. Retaining
walls were added to reduce impacts across the site, and all road and utility crossings will be
perpendicular (at greater than 75 degrees and less than 105 degrees). A bridge is being
implemented to further reduce impacts to Tank Creek and associated wetland areas. A minimum
buffer of 25 feet will be assured for the onsite streams. All stormwater outfalls are located
outside of the wetlands except one Impact W-1). Due to site constraints and requirements
regarding stormwater design, no other alternative exists. (Refer to the attached letter from the
engineer dated November 7, 2001). Wetland impacts have been reduced to the minimum amount
to allow feasible construction of the facility. The protection of wetlands and streams has been an
integral part of all site design issues. Impacts to wetlands and streams have been avoided
wherever possible and minimized to the maximum extent possible.
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 Modification 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
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 similar
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/strmp,ide.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/linear 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. Proposed NCWRP pay-in - see next section.
Page 8 of 12
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that
you would like to pay into the NCWRP. Please note that payment into the NCWRP must be
reviewed and approved before it can be used to satisfy mitigation requirements. Applicants
will be notified early in the review process by the 401/Wetlands Unit if payment into the
NCWRP is available as an option. For additional information regarding the application
process for the NCWRP, check the NCWRP website at bm://h20.enr.state.nc.gViyW/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 (linear feet): 215
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres): 0.454 at 2:1 mitigation
Amount of Non-riparian wetland mitigation requested (acres):
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (DWQ Only)
Does the project involve an expenditure of public funds or the use of public (federal/state/local)
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 ?
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 (DWQ Only)
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.
Page 9 of 12
sk
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 )?
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
(square feet)
Multiplier Required
Mitigation
1 n/a 3
2 1.5
Total
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
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
XI. Stormwater (DWQ Only)
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.
The proposed barracks facilitv will increase the impervious area onsite from zero percent to
twenty percent (from 0 acres to 22 acres impervious) Due to the substantial increase stormwater
will be treated in four onsite detention ponds before being released back into the natural
environment. Stormwater treatment structures are shown on attached impact maps. Also see
attached storm sewer piping and detention pond calculations and impact justification letter from
the engineer dated November 7 2001.
XII. Sewage Disposal (DWQ Only)
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.
Sewage disposal will be via sewer lines to an off-site treatment facility.
Page 10 of 12
XM. Violations (DWQ Only)
Is this site in violation of DWQ Wetland Rules (I 5A NCAC 2H.0500) or any Buffer Rules?
Yes ? No
Is this an after-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).
Rode"?k CLQ,41t,-
1-1 D5c 2001
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
US Army Corps Of Engineers Field Offices and County Coverage
Asheville Regulatory Field Office Alexander Cherokee Iredell Mitchell
US Army Corps of Engineers Avery Clay Jackson Polk
151 Patton Avenue Buncombe Cleveland Lincoln Rowan
Room 208 Burke Gaston Macon Rutherford
Asheville, NC 28801-5006 Cabanw Graham Madison Stanley
Telephone: [phone] Caldwell Haywood McDowell Swain
Fax: [phone] Catawba Henderson Mecklenburg Transylvania
Raleigh Regulatory Field Office Alamance Durham Johnston Rockingham
US Army Corps Of Engineers Alleghany Edgecombe Lee Stokes
6508 Falls of the Neuse Road Ashe Franklin Nash Surry
Suite 120 Caswell Forsyth Northampton Vance
Raleigh, NC 27615 Chatham Granville Orange Wake
Telephone: [phone] Davidson Guilford Person Warren
Fax: [phone] Davie Halifax Randolph Wilkes
Washington Regulatory Field Office Beaufort Currituck Jones Pitt
US Army Corps Of Engineers Bertie Dare Lenoir Tyrrell
Post Office Box 1000 Camden Gates Martin Washington
Washington, NC 27889-1000 Carteret* Green Pamlico Wayne
Telephone: [phone] Chowan Hertford Pasquotank
Union
Watauga
Yancey
Wilson
Yadkin
Page 11 of 12
Fax: [phone] Craven Hyde Perquimans *Croatan National Forest Only
Wilmington Regulatory Field Office Anson Duplin Onslow
US Army Corps Of Engineers Bladen Harnett Pender
Post Office Box 1890 Brunswick Hoke Richmond
Wilmington, NC 28402-1890 Carteret Montgomery Robeson
Telephone: [phone] Columbus Moore Sampson
Fax: [phone] Cumberland New Hanover Scotland
US Fis
US Fish and Wildlife Service
Raleigh Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
Telephone: [phone]
h and Wildlife Service / National M
US Fish and Wildlife Service
Asheville Field Office
160 Zillicoa Street
Asheville, NC 28801
Telephone: [phone]
arine Fisheries Service
National Marine Fisheries Service
Habitat Conservation Division
Pivers Island
Beaufort, NC 28516
Telephone: [phone]
North Carolina State Agencies
Division of Water Quality
401 Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Telephone: [phone]
Fax: [phone]
Division of Water Quality
Wetlands Restoration Program
1619 Mail Service Center
Raleigh, NC 27699-1619
Telephone: [phone]
Fax: [phone]
CAM[A and NC Coastal Counties
State Historic Preservation Office
Department Of Cultural Resources
4617 Mail Service Center
Raleigh, NC 27699-4617
Telephone: [phone]
Fax: [phone]
Division of Coastal Management Beaufort Chowan Hertford Pasquotank
1638 Mail Service Center Bertie Craven Hyde Pender
Raleigh, NC 27699-1638 Brunswick Currituck New Hanover Perquimans
Telephone: [phone] Camden Dare Onslow Tyrrell
Fax: [phone] Carteret Gates Pamlico Washington
NCWRC and NC Trout Counties
Western Piedmont Region Coordinator Alleghany Caldwell Watauga
3855 Idlewild Road Ashe Mitchell Wilkes
Kemersville, NC 27284-9180 Avery Stokes
Telephone: [phone] Burke Surry
Mountain Region Coordinator Buncombe Henderson Polk
20830 Great Smoky Mtn. Expressway Cherokee Jackson Rutherford
Waynesville, NC 28786 Clay Macon Swain
Telephone: [phone] Graham Madison Transylvania
Fax: [phone] Haywood McDowell Yancey
Page 12 of 12
--dial

/'V s T'> T1 1 f-4 1
. a
DEPARTMENT OF THE ARMY
HEADQUARTERS, XVIII AIRBORNE CORPS AND FORT BRAGG
FORT BRAGG, NORTH CAROLINA 28310
November 30, 2001
REPLY TO
ATTENTION OF:
Public Works Business Center
Mr. Ron Ferrell, Program Manager
Wetlands Restoration Program, Division of Water Quality
North Carolina Department of Environment and Natural Resources
320 W. Jones Street
Raleigh, North Carolina 27603
Dear Mr. Ferrell:
In reference to the following recent correspondence for
subject project "Request for Wetlands Mitigation Credits for
Combat Aviation Brigade Complex (PN 45239), Fort Bragg, North
Carolina".
a. Memorandum of Agreement (MOA) between Wetlands
Restoration Program, Division of Water Quality, North Carolina
Department of Environment and Natural Resources (NC DENR) and
Department of the Army, Fort Bragg (signed August 2001),
b. Section 404 Permit Application for the subject project,
submitted to Wilmington District, United States Army Corps of
Engineers, Department of the Army, by Public Works Business
Center, Fort Bragg (signed February 23, 2001), and
c. Section 401 Certification Application for the subject
project submitted to NC DENR Division of Water Quality, by the
Savannah District, U.S. Army Corps of Engineers.
The subject project is located on the Fort Bragg Military
Installation. Butner Road bounds the site to the north and
Longstreet road to the south. The project is bisected by Bigler
Street, which is to be removed as part of the construction.
Fort Bragg requests the Wetlands Restoration Program of NC
DENR confirm the availability and acceptance of 1 acre of
riparian wetland mitigation credit and 215 linear feet of stream
mitigation to be applied as compensatory mitigation on the
subject project. Based on the referenced MOA and this request,
we understand you will provide a letter of "project acceptance"
to our office and the Wilmington District office responsible for
_ approving the Section 404 permit application.
-2-
If you have any questions, please contact Mr. Erich Hoffman
at [phone] or Mr. Eric Halpin at [phone].
Sincerely,
?( Gregory G. Bean
Colonel, U.S. Army
Director of Public Works
Business Center

DEPARTMENT OF THE ARMY
HEADQUARTERS, XVIII AIRBORNE CORPS AND FORT BRAGG
PUBLIC WORKS BUSINESS CENTER
FORT BRAGG, NORTH CAROLINA
ENVIRONMENTAL ASSESSMENT
AND A
MITIGATED FINDING OF NO SIGNIFICANT IMPACT
FOR
DEVELOPMENT OF THE McFAYDEN POND AREA
FORT BRAGG MILITARY RESERVATION, NORTH CAROLINA
12 December 2000
Prepared by:
Headquarters, XVIII Airborne Corps and Fort Bragg
Public Works Business Center
Environmental Natural Resources Division
ATTN: AFZA-PW-E
Fort Bragg, North Carolina 28310
In compliance with the
National Environmental Policy Act of 1969
A
SIGNATURES
ENVIRONMENTAL ASSESSMENT
AND
MITIGATED FINDING OF NO SIGNIFICANT IMPACT
FOR
DEVELOPMENT OF THE McFAYDEN POND AREA
FORT BRAGG MILITARY RESERVATION, NORTH CAROLINA
Prepared by:
-L- z" -,
WILLIAM H. KERN
Environmental Officer
Public Works Business
Center
Date: :-'? 6 , - 4?6
Environmental eview:
G r
DAVID A. HEINS
Chief, Environmental and
Natural Resources Division
Date: ?''p QQ
Proponent:
70 L,,2 -
BBERT L. HIRRON
COL, EN
Director of Public Works
Business Center
Date:
Legal Review:
DANIEL V. WJR GHT
COL, JA
Staff Judge Advocate
Date: 13 36Z-Cjt
Approved:
SKA
1, USA
nding General
;q'V D l
2
-A
S UMMA,RY
This Environmental Assessment (EA) evaluates the potential.
environmental and socioeconomic impacts of developing approximately
273 acres of the McFayden Pond area in the Tank Creek watershed on the
Fort Bragg Military Reservation in Cumberland County, North Carolina.
The proposed action would be constructed in 16 projects. The projects
include a replacement fire station for the Old Division Area, separate
battalion barracks for the 82d Airborne Division, a soldier
development center, an organizational vehicle maintenance shop for the
525th Military Intelligence Brigade, whole barracks renewal for the
16th Military Police Brigade and the 82d Airborne Division's Combat
Aviation Brigade, facilities for the U.S. Army Parachute Team, and the
Combined Arms School Brigade. Reilly Road borders the project area on
the east with 2 projects to the east of this road and 14 projects to
the west. Longstreet Road bounds the main project area on the south,
Keerans Street on the west, and Butner Road on the north. The
Combined Arms School Brigade is located north of Butner Road. The Old
Division Area Fire Station is located south of Longstreet Road. The
area between Reilly Road and Bigler Street, in the center of the
project area, is largely undeveloped woodland surrounding McFayden
Pond. Two alternatives to the "Proposed Action" of developing the
McFayden Pond area were considered. These are the "Reduced Scale
Alternative" of building some, but not all, of the projects, and the
"No Action Alternative" of not developing any of the projects proposed
for the McFayden Pond area. The consequence of implementing the
Reduced Scale Alternative would be to provide suitable facilities for
some, but not all, of the supported units. The consequence of
implementing the No Action Alternative would be to continue to operate
out of existing facilities, which are inadequate for the supported
units. The No Action Alternative provides the baseline for
forecasting the effects of constructing, operating, and maintaining
the projects, which would develop the McFayden Pond area. The EA
addresses the potential environmental impacts of these alternatives,
and finds that the Proposed Action would not be a major Federal action
significantly affecting the quality of.the human environment if storm
water is managed properly, and wetlands impact, if any, is properly
permitted. Accordingly, preparation of an Environmental Impact
Statement is not required. A mitigated Finding of No Significant
Impact will be released to announce this conclusion to the public and
afford them an opportunity to comment on the Proposed Action.
3
THE
ENGINEERS
PLANNERS
SURVEYORS
GROUP
November 7, 2001
Mr. Brian Smith
BLUE: Land, Water, Infrastructure
139-G Technology Drive
Garner, NC 27529
RE: Wetland Permit
Combat Aviation Brigade Complex
Dear Brian,
I have enclosed the wetlands maps for the Combat Aviation Brigade Barracks Complex that
depict all wetland impacts including temporary and permanent. The maps also show the linear
footage of stream impact.
OFFICES IN:
Fayetteville
Raleigh
All storm water outfalls are located outside of the wetlands except structure #83 from the
storm water basin in Area III. There is no other alternative giver, the current site constraints
that would allow the outfall to be located outside of the wetlands. The outfall currently has
minimal impacts. The US Army Corps of Engineers requires that the basin have drawdown
capacity. The storm water collection system supplying the basin is designed at minimum cover
and grades to allow for maximum elevation of the invert of the basin. In order to achieve the
design requirements for the basin without impacting the wetlands with the basin volume, the
outfall had to be placed inside of the wetland boundary.
If you have any questions or concerns in reference to the materials in this package, please
contact me at your earliest convenience.
Sincerely,
The Rose Group, Inc.
Sco Brown, EI
104 Gillespie St.
P.O. Box 103
Fayetteville, NC 28302
[phone]
FAX [phone]
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DESIGN REQUIREMENTS:
A. Retain the post Dcvctopmcnt t 0-Year Design Discharge to Pre-Development 10-Year Discharge
1011110
Drainage Arca, (DA) = 7.1 acres
Overland Flow
Elevation of most remote point, (Ht) = 249.5 feet
Elcvation of point of design, (H2) = 232-0 feet
Length oftravci, (L) S 175.0 feet
Mult. factor = 2.0
Travel Time (Ovcrland) = 2-0 minutes
Char m$ Flow
Elevation ofmost remote point, (HI) 0.0 feet
Elevation of point of design, (H2) = 0.0 fat
Length of travel, (L) = 0.0 feet
Mutt. factor = 1.0
Tmvcl Time (Channel) = 0-0 minutes
Pipc Flow
Elevation of most remote point, (Hi) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor= 0.0
Travel Tinto (Pipe) _
0.0 minutes
Time of Concentration, (Tc) =7 5.0 minutes
Intcrisity,(1) = 120 inchcs/hr
Composite RunoffCoOriieient, (C) 0.20
Maximum Release Rate, (Q10) => 101 CA
Drainage Area, (DA) = 7.1 acres
Overland Flow
Elevation of most remote point, (1I1) = 252.0 far
Elevation of point of design, (H2) = 242.5 feet
Lcngrh of travel, (L) = 349.0 fcct
Mult. factor - 2.0
Travel Time (Overland) = 5.7 minutes
Channel Flow
Elevation of most remote point, (Hl)= 0.0 feet
Elevation of point of design, (112) - 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor= 1.0
Travel Time (Channel) = 0.0 minutes
Pipe Flow
Elevation of most remote point, (H 1) = 242.5 feet
Elevation of point of design, (H2) = 229.0 feet
Lcngth of travel, (L) = 463.0 fcct
Mult. factor = 0.2
Travel Time (Pipe) = 0.7 minutes
Timc of Concentration, (TO 6.4 minutes
Intensity, (1) = 6.93 inehcslhr
Composite Runoff Coefficient, (C) 0.82
40.3 cfs
Peak Release Rate, (Qty _>
P. 005
Pkajxk 1100191.31 Au Page 1 of 7
!+Os?. -?)Ol (FR; I i0 43 THE ROSE GROUP TEL : [phone] P, OOh
Contour Contour Incr. Accum. St age
Elev. Area Storage Storage (S)
(f0 (sf) (of) (of) R) In {s} to (Z)
228-9 - - -
229.0 7,499 375 375 0. 0 5.93
- •2.30
230.0 8,584 8,042 8,416 1. 0 904 0.10
231.0 9,725 9.155 17,571 2 10 9.77 0.74
232.0 10,928 10,327 27,897 3 10 j 10-24 1.13
233.0 12,185 11,557 39,454 4 10 10.58 1.41
234.0 13,499 12,842 52,296 5 10 10.86 1.63
23$.0 14,857 14,178 66,474 6 10 11.10 1 1.81
Regression Outp ut-
b= 1.25 (X Variable C oo
Ks= 6.89$ (er-"-)
taee - Storage Eauation is of the farm: S = (Ks)(Z)e
Barnet
Number of Barrels =
Ilia. of Barrel =
Area of Barrel, (Ab) _
Pipe Length, (L) =
Friction Coeff., (ICp) _
Inv. of Barrel =
Riser
Elev. of Riser Crest w
Rectaneular
Length Weir= 24 inches
Total Weir Length
Area of Riser =
Orifice in Riser
Di-a. of Orifice=
Number of Qrifiees =
urea of Orifice, (Ab) F
Orifice CoolTicient (Cd
Inv. o f Orifice=
Width of Spillway (Appro)L) _
Weir Coefficient =
Crest Elevation =
1
30 inches
4.9t sf
70.0 feet
0,00786
229.00 feet
234.20 feet
h Weir= 24 inches
8.00 feet
4,00 sq. ft-
5 inches
7
0.14 sf
0.60
229.50 feet
25 feet
3.3
234.70 feet
EI IMMI 231 AM
Z cst
0.10
1.17
2.11
3.05
4.02
5.04
6.10
Pago 2 a 7
NOV, -02' 01(FRI) 10:43 THE ROSE GROUP TEL:[phone] P. 007
Page 3 Or 7
I NOV. -02' 00FR i 10:43 THE ROSE GROUP TEL [phone] P. 008
tlTn
Peek Inflow, (QP) _> ¢0.3 CLs
Timc co Peak Calculation- CN= 84 Ii p-- 4.82 in S= 1.90 in.
Q*a 3.11 in. (dcplh of nmoff)
Vol= 80,056 cf
11
Not. of runoff)
i

Timc to Peak, (Tp) 0> I
2 3.8 minu=
(SCS TA-55)
OIOD
t
Q
(mI1L) CCs
I

0.00
01000
0 I
0 00
0.13 0.039 3 1:56
0.25 0.149 6 61101
0.38 0313 9 12.64
0.50 0.507 12 26.44
0.63 0-699 15 28.21
0.76 0.861 1$ 341.72
0.88 0.966 21 38.98
1.01 1.000 24 40.33
1.13 0.956 27 38.56
1.26 0.843 30 34.00
1.39 0.715 33 28.86
1.51 0.607 36 24.49
1.64 0415 39 2p.79
1.77 0.437 42 1 65
1.89 0371 45
48 1.98
72
1
2.02
2.14 0315
0.268 51 .
1,6.79
2.27 0.227 54 1.16
2.40 0.193 57 ?.79
232 0.164 60 6.60
2.65 0.139 63 5.60
2.7'1 0•x18 66 ?_76
2.90 0.100 69 4.04
3.03 01085 72 3.43
3.15 0.072 75 2.91
3.28 0.061 78 3-47
3.40 0.052 81 2.10
3.53 0.044 84 78
3.66 0.037 87 .51
3.78 0.032 90 1.28
3.91 0.027 93 .09
4.03 0.023 96 92
4.16 0.019 99 .78
4.29 0.016 102 .67
4.41 0.014 105 .56
4.54 0.012 108 .a8
4.66 0.010 111 .41
4.79 0.009 114 0.35
4.92 0.007 117 0.29
5.04 0.006 120 0.23
5.17 0.005 123 1 0.21
5.30 0.004 126 0.18
5.42 0.004 129 0.15
5.55 0.003 132 0.13
5.67 0.003 135 0.11
1
5180 0.002 138 0.09
5.93 0.002 141 1 0.08
6.05 0.002 144 10.07
11M,M 9:91 AM
Pape 4 of 7
.N04'.-02'01iPR[) 10: 4 THE ROSE GROUP TEL:[phone] P. 009
6.18 0.001 147
6.30 0.001 i50
6.43 0.001 153
6.56 0.001 156
6.68 01001 159
6.81 0.001 162
6.93 0.001 165
7.06 0.000 268
7.19 0.000 171
7.31 0.000 174
7.44 0.000 177
7.56 0.000 180
7.69 0.000 193
7.82 0.000 M
7.94 01000 189
8.07 0.000 192
8.20 0.000 195
8.32 0.000 196
8.45 0.000 201
8.57 0.000 204
8.70 0.000 207
9.83 0.000 210
8195 0.000 213
9.08 0.000 216
9.20 01000 219
9.33 0.000 222
9.46 0.000 225
9.58 0.000 228
9.71 01000 231
9.83 0,000 234
9.96 0.000 237
10.09 0.000 240
10.21 0.000 243
10.34 0.000 246
10.46 0.000 249
10.59 01000 252
10.72 0.000 255
10.84 0.000 258
10.97 0.000 261
11.10 6.000 264
11.22 0.000 267
11.35 01000 270
11.47 0.000 273
11.60 0.000 276
11.73 0.000 279
11.85 0.000 282
11.98 0.000 285
12.10 0.000 288
12.23 0.000 291
12.36 0.000 294
12.48 0.000 297
12-61 0.000 300
.00
.00
00
tiom 9M AM
Pege 5 Of 7
-02' 01(FRi ) 10 THE ROSE GROUP TEL : [phone] "r. 010
W EIR OIrIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RI SER RISER ORIFICE SPILLWAY OUTFLOW
min c[a a ft I efs cfa cfs rfs
II
0
00 0.00 2548 0.50 O u0 0.0 0.0 0.0 0.0
,
3
00 156 2548 0.50 O rU 010 0.0 0.0 010
.
6
00 6.01 2829 0.50 Q IO 0.0 010 010 0.0
.
9
00 12.64 3910 0,64 0 10 0.0 0.4 0.0 0.4
-
12
00 20.44 6115 0.91 ( 110 0.0 2.0 0.0 2.0
.
15
00 28.21 9429 1-28 13 0 0.0 3.5 0.0 3.5
.
18
00 34.72 13879 1.75 ( .0 0.0 4.7 0.0 4.7
.
21.00 38.98 19287 2.27 ( 0 0.0 5.7 0.0 5.7
24.00 40.33 25271 2.82 (. 0 0.0 6.7 0.0 6.7
27.00 38.56 31331 3.35 0 0.0 7.5 0.0 7.5
30-00 34.00 36931 3.82 .0 0.0 8.1 0.0 8.1
33.00 28.86 41593 4.20 .0 0.0 8.6 0.0 8.6
36.00 24.49 45244 4.49 0 0.0 8.9 0.0 819
39.00 20.79 48047 4.71 9 .0 0.0 9.2 0.0 9.2
42.00 17.65 50137 4.87
? 0 0.0 9.4 0.0 9.4
45.00 14.99 51628 4.99 .o 0.0 9.5 0.0 9.5
48.00 12-72 52616 5.06 4 .0 0.0 9.6 0.0 916
51.00 10.79 53181 5.11 6.0 0.0 9.6 0.0 9.6
54.00 9.16 53391 5.12 ¢.0 0.0 9.6 0.0 9.6
57.00 7.78 53304 5.12 6.0 010 9.6 0-0 9.6
60.00 6-60 52970 5.09 0.0 0.0 9.6 0.0 9.6
63.00 $.60 52428 5.05 -0 0.0 9.6 0.0 916
66.00 4.76 51716 5.00 .0 0.0 9.5 0.0 93
69.00 4.04 50862 4.93 .0 010 9.4 0-0 9.4
72.00 3.43 49892 4.85 .0 0.0 9-3 0.0 9.3
75.00 2.91 48827 4.77 -0
1 0.0 9.2 0.0 9.2
78.00 2.47 47685 4.68 .0 0.0 911 010 911
81.00 2.10 46483 4.59 .0 010 9.0 0.0 9.0
84.00 1-78 45234 4.49 0 0.0 8.9 0.0 8.9
87.00 1.51 43948 4.39 ?.0 0.0 8-8 0.0 8.8
90.00 1,29 42636 4.28 0.0 0.0 8.1 0.0 8.7
93.00 1.09 41305 4.17 0.0 0.0 815 0.0 8.5
96.00 0.92 39963 4-07 0.0 0.0 8.4 0.0 8.4
99.00 0.78 38616 3.96 i0.0 0.0 83 0.0 83
102-00 0.67 37269 3.85 0.0 0.0 8.1 0.0 8.1
I05.00 0156 35925 3.73 Q.0 0.0 810 010 8.0
108.00 0.48 34590 3.62 0.0
? 0.0 7.8 0.0 7.8
111-00 0.41 33266 3.51 p 0 0.0 7.7 0-0 7-7
114.00 0.35 31957 3.40 0.0 0.0 7.5 0.0 7.5
117.00 0.29 30663 3.29 .0 0.0 7,4 0-0 7.4
120.00 0.25 29389 3.18 0.0 010 7.2 0.0 7.2
123.00 0.21 28135 3.07 0.0 0.0 7.1 0.0 7.1
126.00 0.18 26903 2.96 0.0 0.0 6.9 0.0 6.9
129.00 0.15 25695 2.86 0.0 0.0 6.7 0.0 6-7
132.00 0.13 24511 2-75 0.0 0.0 6.6 0.0 6.6
135.00 0.11 23354 2.65 0.0 0.0 6.4 0.0 6.4
138.00 0.09 22223 2.54 0,0 0.0 6.2 0.0 6.2
141.00 0.08 21121 2.44 0.0 0.0 6.0 0.0 6.0
144.00 0.07 20047 2.34 0.0 0.0 5.9 0.0 5.9
147-00 0.06 19003 2.25 0.0 0.0 5.7 0.0 5.7
150.00 0.05 17989 2.15 0.0 0.0 5.5 010 5.5
153.00 0.04 17006 2-06 0.0 0.0 5.3 0.0 5.3
156.00 0.03 16055 1.96 0.0 0.0 5.1 0.0 5.1
159.00 0.03 15136 1.87 0.0 0.0 5.0 0.0 510
162.00 0.03 14250 1.78 0.0 0.0 4.8 0.0 4.8
165.00 0.02 13397 1.70 0.0 0.0 4.6 0.0 4.6
168.00 0.02 12519 1.62 0.0 0.0 4.4 0.0 4.4
171.00 0.02 11796 1.53 0.0 0.0 4.2 0.0 4,2
plnll
II d 1I&V 221 AM
Page 6 u17
NOV. -001 i F R i 10:44 THE ROSE GROUP TEL:[phone] P. 0
174
00 0.01 11048 1.46 0 0 0.0 4.0 0.0 4.0
.
00
177 0.01 10336 1.38 0 010 3.8 0.0 3-8
.
190-00 0.01 9660 1131 0 0 0-0 3.6 0.0 3.6
183.00 0-01 9022 1.24 0 0.0 3.3 010 3.3
186.00 0.01 8422 1.17 4 0.0 3.1 0-0 3.1
189.00 0.01 7860 1111 0 0.0 2.9 0.0 2.9
192.00 0.00 7338 1.05 0 0.0 2.7 0-0 2.7
195.00 0.00 6856 1.00 0 0.0 2.5 0.0 2-5
198.00 0.00 6414 0.94 0 0.0 2.2 0.0 2-2
201.00 0.00 6014 0.90 ?0 0.0 1.9 0.0 1.9
204.00 0.00 5664 0.85 0 0.0 1.6 0.0 1.6
207,00 0.00 5368 0.82 0 0.0 1.4 0.0 1.4
210.00 0.00 5115 0.79 0 0.0 1.2 0.0 1.2
213.00 0.00 4899 0.76 0 0.0 1.0 010 1.0
216.00 0.00 4712 0.74 0 0.0 0.9 0.0 0.9
219.00 0.00 4549 0.72 0 0.0 0.8 0.0 0-8
272.00 0100 4407 0.70 .0 0.0 0.7 0.0 0.7
225.00 0.00 4282 0.68 .0 0.0 0.6 0.0 0,6
228.00 0.00 4172 0.67 .0 0.0 0.5 0.0 0.5
231.00 0.00 4074 0.66 .0 0.0 0.5 0.0 0.5
234.00 0.00 3987 0.65 .0 0.0 0.4 0.0 0.4
237,00 0,00 3909 0.64 .0 0.0 0.4 0.0 0.4
240.00 0.00 3839 0.63 .0 010 0.4 0.0 0.4
243.00 0.00 3776 0.62 .0 010 03 0.0 03
246.00 0.00 3719 0.61 .0 0.0 0.3 0.0 0.3
249.00 0.00 3667 0.60 .0 0.0 0.3 0.0 0.3
252.00 0.00 3620 0.60 .0 0.0 0.2 010 0.2
255.00 0.00 3577 0S9 .0 0.0 0.2 010 0.2
258.00 0.00 3538 0.59 •0 010 0.2 0.0 02
261.00 0.00 3502 0.58 .0 0.0 0.2 0.0 0.2
264.00 0.00 3469 0.58 .0 0.0 01 0.0 0.2
267.00 0.00 3439 0.57 .0 0-0 0-2 0.0 0.2
270.00 0-00 3411 0.57 .0 0.0 0.1 0.0 0.1
273.00 0.00 3385 0.57 .0 0.0 0.1 0.0 0.1
276.00 0.00 3361 0.56 .0 0.0 0.1 0.0 0.1
279.00 0.00 3339 0.56 .0 0-0 011 010 0.1
282.00 0.00 3318 0.56 -0 010 0.1 0.0 0.1
285.00 0.00 3298 0-55 14.0 0.0 0.1 0.0 0.1
288.00 0.00 3280 0.55 .0 0.0 0.1 0.0 0.1
291.00 0.00 3264 0.55 0.0 0.0 0.1 010 0.1
294.00 0.00 3248 0.55 .0 0.0 0-1 0.0 0.1
797.00 0.00 3233 0155 .0 0.0 0-1 0.0 0.1
300.00 0.00 3219 0.54 .0 0.0 0.1 0.0 0.1
w4ct i mf 0i AN Page TO 7
VOV -O''01iFR1i 10:4 THE POSE GROUP TEL:[phone] P.01?
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NOV -02'01(FRI1 10 :43 THE ROSE GROUP TEL[phone] P.016
NOV, -02'01(PRII 10:49 THE ROSE GROUP TEL:[phone] P.01'
DESIGN REQUIREMENTS:
A. Retain the Post-Developmenr 10-Year Design Dischl gc to Pre-Development 10-Year Discharge
Drainage Area, (DA) = 7.1 acres
Overland Flow
Elevation ofmost remote point, (Hl) = 240.0 feet
Elevation of point of design, (H2) = 217.0 feet
Length of travel, (L) = 372.0 feet
MLIL factor = 2.0
Travel Time (Overland) = 4.4 minutes
Channel Flow
Elevation of most remote point, (141):5 0.0 feet
Elevation of point of design, (112) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mutt. factor = 1.0
Travel Time (Channel) = 0.0 minutes
Pipe Flow
Elevation of mostremote point, (Eli) x 0.0 feet
Elevation of point of design, (112) = 0.0 feet
Length of travel, (L) F 0 feet
0
Mull factor= .
Travel Time (Pipe) = 0.0 minutes
Timc of Concentration, (Tc) a 5.0 minutes
Intensity, m = 7.20 inchcsft
Composite Runoff Coefficient, (C) => 0.20
Maximum Release Rate, (Qto) => 102 cfs
Drainage Area, (DA) = V 7.I acres
Overland Flow
Elevation of most remote point, (Hl) _ 251.0 feet
Elevation of point of design, (112) = 247.5 feet
Length of travel, (L) = 30.8 feet
Mull. factor = 2.0
Travel Time (Overland) = 0.5 minutes
Channel Flow
Elevation of most remote point, (H 1) = 247.5 feet
Elevation ofpoint of design, (H2) = 238.6 feet
Length of travel, (L) = 372.0 feet
MvIL faCWT= 1.0
Travel Time (Channel) = 3.1 minutes
Pipe Flow
Elevation of most remote point, (111) = 238.6 feet
Elevation of point ofdesign, (H2) = 229.0 feet
Length of travel, (L) = 862.0 feet
Molt. factor= 0.2
Travel Time (Pipe) = 1.6 minutes
Time of Concentration, (Tc) 5.2 minutes
intensity, (1) = 7.13 inches/hr
Composite Runoff Coefficient, (C) =7 0.76
Peak Release Rate, (Qto) =a 3" cfs
1100 =AU
Page t of?
NOV,. -02' 01(FRl 110:50 HE ROSE GROUP TEL:41?]?????100 P. 01
-f he jos e C 1

Contour Contour Incr. Aceum. Stage
Elev. Area Storagc Storage (S) (2)
(ft) (sfj (cf) (cf)
('R)
In (S)
In (Z)
Zest
217.9 - - -
218.0 13,025 651 651 0110 _ 6.48 _-2.30 0.10
219.0 14,705 13,865 14,516 1.I0 9.58 0.10 1.18
220.0 16,442 15,574 30,090 2.10 10.31 ` 0.74 2.12
221.0 18,237 17,340 47,429 3.10 ; 10.77 1.13 3.06
222.0 20,088 19,163 66,592 4.10 11.11 '•• 1.41 4.02
223.0 21,997 21,043 87.634 5.10 1138 s '• 1.63 5.01

Regression Output.
b= 1.24 (X Variable COOT)
Ks= 11,812 (er'"m""`}
- Storage Fauation is of the form: S I
Barret
Number of Barrels = 1
Dia- of Barrel = 30 inches
Area of Barrel, (Ab) = 4.91 sf
pipe Length, (,) = 70.0 feet
Friction Cocff-, (Kp) y 0.00786
Inv. of Harrel = 218.00 feet
Riser
Elev. of Riser Crest R 221.70 feet
Rectangu tar
Length Weir- 24 inches width weir- 24 inches
Total Weir Length- 8.00 feet
Area of Riser = 4.00 sq. ft.
Orifice in Riser
Dia. of Orifice= 5 inches
Number of Orifices = 9
Area of Ori fice, (Ab) = 0.14 sf
Orifice Coefficient (Cd = 0.60
Inv, of Ori fice = 218.50 feet

Width of Spillway (Approx.)
Weir Coefficient 19
Crest Elevation =
20 feet
3.3
222.2 feet
penwt 71W9:92 AM Page 2 of 7
NOV, -42' 41(FRI ) 110 l THE ROSE GROUP TEL 910 i?3344 P. 019
.Rose Group,
Estimated Maximum Rclcase Rate, (Qa) = I 10.2 cfs
Normal Watet Surface Elev. =
218.5 fcct
Water Surface Elev. @ Outlet (Qte) = I 221.6 feet
p Wd 11MM9:2AM PaAo 3 017
NOU,-0,'011FR 1i 10:5? THE ROSE GROUP
TEL:[phone]
,.
Peak Inflow, (Qp) => 385 efs
Time to Peak Calculation: CNN: 86 P= 4.82 in 1.63 in.
Q*= 13.30 in. (d;rpth of runaff)
Vol= 84,915 of (vol.ofraaoff)
Timc to Peak, (Tp) = I 26A minutes
(5CS TR-55)
1

min cfs
0.00 0.000 l
(0 0.00
0.11 0.031 3 1 21
0.23 0.122 6 4.69
0.34 0.260 9 10-01
0.45 0.428 12 16.49
0.57 0.605 15 23.32
0.68 0.769 18 29.64
0.79 0.899 21 34.65
0.91 0.979 24 37.73
1.02 0.999 27 38.48
1.14 0.956 30 36.81
1.25 0.855 33 32.94
1.36 0.739 36 28.46
148 0.637 39 24.55
1.59 0.550 42 21.18
1.70 0.474 45 18.28
112 0.409 48 15.77
1.93 0.353 51 13.61
2.04 0.305 54 11.74
2.16 0263 57 10.13
227 0.227 60 8.74
2.38 0.196 63 7.54
2.50 0.169 66 6.51
2.61 0.146 69 5.61
2.72 0.126
1 72 4.84
2.84 0.108 75 4.18
2.95 0.094 78 3.61
3.06 0.081 81 3.11
3.18 0.070 84 2.68
3.29 0.060 87 2.32

3.41 0.052 ' 90 2.00
352 0.045 93 1.72
3.63 0.039 96 1.49
3.75 0.033 i 99 1.28
3.86 0.029 102 1.11
3.97 0.025 105 0.96
4.09 0.021 ;
i 109 O.S2
4.20 0.018 111 0.71
431 0.016 114 0.61
4.43 0.014 117 0.53
4.54 0.012 120 0.46
4.65 01010 123 0.39
4.77 0.009 126 0.34
4.88 0.008 129 0.29
4.99 0.007 132 0.25
$.11 0.006 135 0.22
5.22 0.005 138 O.I9
$.33 0.004 141 0.16
5.45 0.004 i 144 0.14
i
Win= tu2m*.=AM
P. 0?0
Page 4 of 7
NOvr-02' 01(FRH 10:53 THE ROSE GROUP TEL:[phone] P. 021
5.56 0.003 1 47 0.12
5.68 0.003 to 0.10
5.79 0.002 3 0.09
5.90 0-002 1 6 0,03
6.02 0.002 1 9 0.07
6.13 01002 1 62 0.06
6.24 0.001 65 0.05
6.36 0.001 0-04
6.47 0.001 F 0.04
6.58 0.001 0.03
6.70 0.001 77 0.03
6.91 0.001 80 0.02
6.92 0.001
1 83 0.02
7.04 0.000 86 0.02
7.15 0.000 1 89 0.02
7.26 0.000 192 0.01
7.38 0.000 }95 0.01
7.49 0.000 i98 0.01
7.61 0.000 20l 0101
7.72 0.000 204 0.01
7.83 0.000 107 0.01
7.95 0.000 210 0-01
8.06 0.000 213 0.00
8-17 0-000 216 0.00
829 0.000 219 0.00
8.40 0.000 222 0.00
8.51 0.000 k25 0.00
8.63 0.000 228 0.00
8.74 0.000 231 0.00
8.85 0.000 ?34 0.00
8.97 0-000 237 0.00
9.08 0.000 ?40 0.00
9.19 0.000 243 0.00
9.31 0.000 46 0.00
9.42 0.000 9 0.00
9.53 0.000 2 0.00
9.65 0.000 5
F 0.00
9.76 0.000 58 0.00
9.88 0.000 261 0.00
9.99 0.000 64 0.00
10.10 0.000 267 0.00
10.22 0.000 270 0.00
10.33 0.000 273 0.00
10.44 01000 276 0.00
10.56 01000 279 0.00
10.67 0.000 282 0.00
10.78 0.000 285 0.00
10.90 0.000 288 0.00
11.01 01000 291 0.00
11.12 0.000 294 0.00
11.24 O.OOD 297 0.00
11.35 0.000 300 0.00
pmtea w=i MW AM Pago 5 017
NOV'rl '01IFR l 10:53 THE ROSE GROUP TEL:[phone] P.022
TIME INFLOW STORAGE
min ets Lek
0.00 0.00 5048
3.00 1.21 5048
6.00 4.69 5265
9.00 10-01 6104
12.00 16.49 7859
15.00 23.32 10640
18.00 29.64 14349
21.00 34.65 18963
24.00 37.73 24277
27.00 38.48 29%6
30.00 36.81 35634
33.00 32.94 40867
36.00 28.46 45294
39.00 24.55 48826
42.00 21.18 51595
45.00 18.28 53708
48.00 15.77 55263
$1.00 13.61 56342
54.00 11.74 57014
57.00 10-13 57339
60.40 8.74 57369
63.00 7.54 57148
66.00 651 56715
69.00 5-61 56103
72.00 4.84 55339
75-00 4.13 54450
711.00 3.61 53455
81.00 3.11 52373
84.00 2_68 51220
87.00 2.32 50010
90.00 2.00 48754
93-00 1.7Z 47463
96.00 1.49 46145
99.00 1.28 44809
102.00 1.11 43460
105.00 0.96 42106
109.00 0.82 40750
111.00 0.71 39398
114.00 0.61 38053
117.00 0.53 36718
120.00 0.46 35396
123.00 0.39 34091
126.00 0.34 32804
129.00 0.29 31537
132.00 0.25 30292
135.00 0.22 29070
138-00 0.19 27874
141.00 0.16 26704
144.00 0.14 25561
147.00 0.12 24447
150.00 0.10 23362
153.00 0109 22307
156.00 0.08 21284
159.00 0.07 20292
162.00 0.06 19333
165.00 0.05 18407
168.00 0.04 17515
171.00 0.04 16657
WEIR ORIFICE EMERGENCY TOTAL
c E
? TtISER RISFR ORIFICE SP1LLwAY OU'T'FLOW
ft cfs cfs cis cfs cfs
150 0.0 0.0 0.0 0.0 0.0
.50 0.0 0.0 0.0 0.0 0.0
.52 0.0 0.0 0.0 0.0 0-0
.59 0.0 0.0 0-3 0.0 03
.72 0.0 0.0 1.0 010 1.0
.92 0.0 010 2.7 0.0 2.7
.17 0.0 0.0 4.0 0.0 4.0
.46 0.0 0.0 5.1 0.0 5.1
.78 0.0 0.0 6.1 0.0 6.1
.11 0.0 0.0 7.0 0.0 7.0
.43 0.0 0-0 7.7 0.0 7.7
.71 0.0 0.0 8.4 010 8A
95 0.0 0.0 8.8 0.0 8.8
.13 0.0 010 9.2 0.0 9.2
.27 0.0 0.0 9.4 0.0 9.4
-38 0.0 0.0 9.6 0.0 9.6
.46 010 0.0 9.8 0.0 9.8
..51 0.0 0.0 9.9 0.0 9.9
.54 010 0.0 9.9 0.0 9.9
1.56 0.0 0.0 10.0 0.0 10.0
1.56 0.0 0.0 10.0 0.0 10.0
1.55 0.0 0.0 9.9 010 9.9
1.53 0.0 0.0 9.9 0.0 9.9
1.50 0.0 0.0 9.9 0.0 9.9
1.46 0.0 010 9.8 0.0 9.8
1.42 0.0 0.0 9.7 0.0 9.7
137 0.0 0.0 9.6 0.0 9.6
1.31 0.0 0.0 9.5 0.0 9.5
1.25 0.0 0.0 9.4 0.0 9A
1.19 0.0 0.0 9.3 0.0 9.3
1.13 0.0 0.0 9.2 0.0 9.2
1.06 010 0.0 9.0 0-0 9.0
2.99 010 0.0 8.9 0.0 8.9
2.92 0.0 0.0 8.8 0.0 8.8
2.85 0.0 0.0 8.6 0.0 8.6
2.78 0.0 0.0 8S 0.0 8.5
2.71 0.0 0.0 8.3 010 8.3
2.63 0.0 0.0 8.2 0.0 8.2
?..56 0.0 0.0 8.0 0.0 8.0
2.49 0.0 0.0 7.9 0-0 7.9
2.42 0.0 0.0 7.7 0.0 7.7
1.34 0.0 0.0 7.5 0.0 7.5
2.27 0.0 0.0 7A 0.0 7.4
2.20 0.0 0.0 7.2 0.0 7.2
2.13 0.0 0.0 7.0 0.0 7.0
2.06 0.0 0.0 6.9 0.0 6.9
1.99 0.0 0.0 6.7 0.0 6.7
1.93 0.0 0.0 6.5 0.0 6.5
1.86 0.0 0.0 6.3 010 6.3
1.79 0.0 0.0 6.1 010 6.1
1.73 0.0 010 6.0 0.0 co
1.67 0.0 0.0 5.8 0.0 5.8
1.61 0.0 0.0 5.6 0.0 5.6
1.54 0.0 0.0 5.4 0.0 5.4
1.49 0.0 0.0 5.2 0.0 5.2
1.43 0.0 0.0 5.0 0.0 5.0
1.37 0.0 0.0 4.8 010 4.8
1.32 0.0 0.0 4.6 010 4-6
prkdW: 11FM 9*32 AM
Page 6 of 7
NO4 -01' 01 (FRi ) 10:54 THE ROSE GROUP TEL:[phone] P. 0
174.00 0.03 15835 1127 0.0 010 4.4 0.0 4.4
177-00 0.03 15048 t 1 0.0 0.0 4.2 0.0 4.2
180.00 0.02 14297 317 0.0 0.0 4,0 0.0 4.0
183.00 0.02 13583 112 0.0 0.0 3.8 0.0 3.8
186.00 0,02 12906 1,07 0.0 0.0 3.6 0.0 3.6
189.00 0.02 12267 1.03 6.0 0.0 3.4 0.0 3.4
192.00 0.01 11667 0-99 0.0 0.0 3.1 0.0 3.1
195.00 0.01 11106 0.95 0.0 0.0 2.9 0.0 2.9
198.00 0.01 10584 d.92 0.0 0.0 2.7 0.0 2.7
201.00 0.01 10101 9.88 0.0 0.0 2.4 0.0 2.4
204.00 0.01 9676 0,85 010 0.0 2.1 0.0 2.1
207.00 0.01 9300 6.83 0.0 0.0 IS 0.0 1.9
2I0.00 0.01 $966 0.80 0.0 0.0 1.7 0.0 1.7
213.00 0.00 8668 6.78 0.0 0.0 15 0.0 1.5
21600 0.00 8401 0.76 0.0 0.0 1.3 0,0 1.3
219.00 0.00 8162 Q-74 0.0 0.0 1.2 0.0 1.2
222.00 0.00 7946 0.73 0.0 0.0 1.1 0-0 I.1
225.00 0.00 7751 6-71 0.0 0.0 1.0 0.0 I.0
228.00 0.00 1574 6.70 010 0.0 0.9 010 0.9
231.00 0.00 7413 6.69 0.0 0.0 0.8 0.0 0.8
234.00 0.00 7266 6.68 010 0.0 0.7 0.0 0.7
237.00 0.00 7132 0.67 0.0 0.0 0.7 0.0 0.7
240.00 0.00 7010 0.66 0.0 0.0 0.6 0.0 0.6
243.00 0.00 6897 0.65 0.0 0.0 0.6 0.0 0.6
246.00 0.00 6793 0.64 0.0 0.0 0.5 0.0 05
249.00 0.00 6698 63 0.0 0.0 OS 0.0 0.5
252.00 0.00 6609 .63 010 0.0 0.5 0.0 0-5
255.00 0.00 6527 0.62 0.0 010 0.4 0.0 0.4
258.00 0,00 6452 b.62 0.0 0.0 0.4 0.0 0.4
26I.00 0.00 6381 0.61 0.0 0.0 0.4 0.0 0.4
264.00 0.00 6316 P-60 0.0 0.0 0.3 0.0 0,3
267
00 0.00 6255 0.60 0.0 0.0 03 0.0 0.3
.
270.00 0.00 6198 1
0.60 0.0 0.0 0.3 010 0.3
273.00 0.00 6144 bS9 0.0 0.0 0.3 0.0 0.3
276.00 0.00 6094 0-59 0.0 0.0 0.3 0.0 0.3
279.00 0.00 6048 .58 010 0-0 0.2 0.0 0.2
282.00 0.00 6004 .58 0.0 0.0 0.2 0.0 0.2
285.00 0.00 $963 0.58 0.0 010 0.2 0.0 02
288.00 0.00 5924 .57 0.0 010 02 0,0 0.2
291.00 0.00 5887 .57 0.0 010 0.2 010 0.2
29400 0.00 5653 0.57 0.0 0.0 0,2 0.0 0,2
297.00 0.00 5820 0.57 0.0 0.0 0.2 0.0 02
300.00 0.00 5789 0.56 0.0 0.0 02 0.0 0.2
pinlea f 1=1 912 AN PVC 7 OF 7
0V! -()?' 01 !FRi I 10:34 THE ROSE GROUP
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NOVI, -02' Ill IF R, ) 11:00 THE ROSE GROUP TEL:[phone] P.029
The Rose Group, Inc.
DESIGN REQUIREMENTS!
A- Retain the Post-Development 10-Year Design Discharge to Prc-Development 10-Year Discharge
Combat.a%iation Brigade Complex - Area 2 Pond Pre-De•-clopnient Runoff- 10-y r
Drainage Area, (DA) = 7.7 acres
Overland Flow
Elevation of most remote point, (HI) = 2513 feet
Elevation of point of design, (H2) _ 225.5 feet
Length of travel, (L) = 515.0 feet
Mult. factor= 2.0
Travel Time (Overland) = 6.0 minutes
Channel Flow
Elevation of most remote point, (HI) = 0.0 feet
Elevation o f point of design, (H2) = 0.0 feet
Length of navel, (L) = 0.0 feet
Mu1L factor= 1.0
Travel Time (Channel) = 0.0 rninutcs
Pipe Flow
Elevation of most remote point, (Hl) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult factor - 0.0
Travel. Time (Pipe) = 0.0 minutes
Time aCConcentratign, (Te) 6.0 minutes
Intensity, (1) = 6.99 inches/hr
Composite Runoff Coefficient, (C) 0.20
Maximum Release Rate, (Qto) _> 10.8 cfs
Drainage Area, (DA) = 7.7 acres
Overland Flow
Elevation of most remote point, (HI) = 248.0 feet
Elevation of point of design, (H2) = 231.0 feet
Length of travel, (L) = 438.0 feet
Mn1L factor= 2.0
Travel Time (Overland) = 5.9 minutes
Channel Flow
Elevation of most remote point, (Hl) = 0.0 fat
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = OA feet
Mull factor = 1.0
Travel Time (Channel) = 0.0 minutes
Pipe Flow
Elevation of most remote point, (Hl) = 231.0 feet
Elevation of point of design, (H2) = 220.0 feet
Length of travel, (L) = 341.0 feet
Mule factor= 0.2
TTavol Time (Pipe) = 0.5 minutes
Time of Concentration, (Te) => 6.4 minutes
Intensity, (1) = 6.92 inches/hr
Composite Runoff Coefficient, (C) 0.83
Peak Release Rate, (Qlo) => 44.2 efs
RIA&M 11= U7 AM Page 1 of?'
N`, -02' ill IFR[ 1 11:01 THE ROSE GROUP TELL 9103.133400 P. pip
The
Deten Rose
tion Po Group, Inc.
nd S01ge - Stora
g
e Flinction
g
Contorts Contour Incr. Accum. Stagg
Elm Ama Storage Storage (S) (Z)
(R) (sf) (cf) (of) (ft) !n {S) In (Z) Z cst
219.9 - - - -
220.0 14,336 717 717 0.10 6.57 -2.30 0.10
221.0 15,988 15,162 15.879 1.10 - 9.67 r _
0.10 1.14
222.0 17,700 16,844 32,723 2.10 10.40 0.74 2.13
223.0 19,468 18,584 51,307 3.10 10.85 1.13 3.07
224.0 21,303 20,386 71,692 4.10 ? 11.18 1.41 4.02
225.0 23,199 22,246 93,938 5.10 11.45 1.63 i 5.01
226.0 25,130 24,159 118,097 6.10 11.68 1.81 6.02
Regression Output:
b= 1.24 (X variable Coca)
Ks= 12,834 (c' m° "°')
- Storage Equation is of the form: S = flCsl(21b
Barrel
Nttmber of Barrels =
Din. of Barrel =
Area of Barrel, (Ab) =
Pipe Length, (L) =
Fric don Cocff, (Kp) =
Inv. of Barrel =
Elcv. of Riser Crest =
Rectangular
Length Weir- 24 inches
Total Weir Length=
Area of Riser =
Orifice in Riser
Dia- of Orifice=
Number of Orifices =
Area of Orifice, (Ab) _
Orifice Coefficient (C' _
Inv. of Orifcc =
Width Weir-
1
30 inches
4.91 sf
70.0 feet
0.00786
220.00 feet
225.00 feet
24 inches
8.00 feet
4.00 sq. R
5 inches
8
0.14 sf
0.60
221.00 feet
L• 111cr ;Cne Spilirr ac
Width of Spillway (Approx.) _
Weir CoefftCiCnt =
Crest Elevation =
I I- 11 MI 937 AM
25 feet
3.3
225.50 feet
Psga 2 of 7
VG,i. -01' 01 IFR? 11:01 THE ROSE GROUP TEL:[phone] P. pal
The Rose Group, Inc.
Estimated Maximum Release Rate, (Q,,) = 10.8 cfs
Normal Water Surface Elev. =
221.0 fcct
Water Surfacc Elm rQ Qutlct (Q10) = 224.5 feet
PIMM: I1W 81?A 1 PaW 3 ot7
N0` -02' 01 IFRl1 II X1)3
•o THE ROSE GROUP TEL:910323'3400 P.032

1
Peak Inflow, (Q1) =y 44,2 cfs
Timc to Peak Calculation: CND 90 P= 4.82 in S= 1.11 in.
Q'= 3.70 in. (dcpth of runoff)
Vol= 103,500 cf (vol. of runoff)
Time to Peak, (Tp) z> 28.1 minutes
(SCS TR-55)
QQk t 4
min efs
0.00 0.000 0 0.00
0111 0.028 3 1.23
0.21 0.109 6 4.80
0.32 0.233 9 10.30
0.43 0.387 12 17.12
0.53 0.554 15 24.49
0.64 0.715 18 31.60
0.75 01852 21 37.65
0.86 0.949 24 41.%
0.96 0.996 27 44.06
1.07 0.988 30 43.70
1.18 0.926 33 40.93
1.28 0.819 36 3612
1.39 0.713 39 31.52
1150 0.620 42 27,43
1.60 0.540 45 23.87
1.71 0.470 48 20.77
1.82 0.409 51 18-08
1.92 0.356 54 15.73
2.03 0.310 57 13.69
2.14 0270 60 11.92
2.24 0235 63 10.37
2.35 0.204 66 9.03
146 0.178 69 7.85
2.57 01155 72 6.84
2.67 0.135 75 5.95
2.78 01117 78 5.18
2.89 0.102 81 4S1
2.99 0.089 84 3.92
3.10 0.077 87 3.41
3.21 0.067 90 2.97
3.31 0.058 93 248
3.42 0.051 96 2.25
3S8 0.044 99 1,96
3.63 0.039 102 1.70
3.74 0.034 105 1.48
3.8$ 0.029 108 1.29
3.95 0.025 111 1.12
4,06 0.022 114 0.98
4.17 0.019 117 0.85
4.28 0.017 120 0.74
4.38 0.015 123 0,64
4.49 0.013 126 0S6
4.60 0.011 129 0.49
4.70 0.010 132 0.42
4.81 0.008 135 037
4.92 0.007 138 032
5-02 0.006 141 0.28
5.13 0,006 144 014
onntm 114a19;77 AM Rage 4 of 7
NM,' -02'01iFRI? !1:04 THE ROSE GROUP TEL:[phone] P, 033
'iThe Rose Group , Inc.
5.24 0.005 147 Olt
5.34 0.004 150 0118
$.45 0.004 153 0.16
5.56 0.003 156 0.14
5.66 0.003 159 0.12
5-77 0.002 162 0.11
5.88 0.002 165 0.09
5.99 0.002 168 0.08
6.09 0.002 171 0.07
620 0.001 174 0.06
6.31 0.001 I T7 0.05
6.41 0.001 IN 0105
6.52 0.001 183 0.04
6.63 0.001 186 0.03
6.73 0.001 189 0,03
6.84 0.001 192 0.03
6.95 0.001 195 0.02
7.05 0.000 198 0.02
7.16 0.000 201 0.02
7.27 0.000 204 0.02
7.38 0.000 207 0.01
7.48 0.000 210 0.01
7.59 0.000 213 0.01
7.70 0.000 216 0.01
7.80 0.000 219 0.01
7.91 0.000 222 0.01
8.02 0.000 225 0.01
8.12 0.000 228 0.00
8.23 0.000 231 0.00
8.34 01000 234 0-00
8.44 0.000 237 0.00
8.55 0.000 240 0,00
8.66 0.000 243 0.00
8.76 0.000 246 0.00
8.87 0.000 249 0.00
8.98 0.000 252 0100
9-09 0.000 255 0.00
9.19 0.000 258 0.00
9.30 0-000 261 0.00
9.4t 0-000 264 0-00
9St 0.000 267 0.00
9-62 01000 270 0.00
9.73 01000 273 0.00
9.83 0.000 276 0.00
9.94 0.000 279 0100
10.05 0.000 282 0.00
10.15 0.000 285 0.00
1016 0.000 288 0.00
10.37 0.000 291 0.00
10.47 01000 294 0.00
10.58 01000 297 0,00
10.69 0.000 300 0.00
pmre¢ wy01 U7 iw Page 5 of 7
NOV- -02' 01 (FR! ) 11:05 THE ROSE GROUP TEL:[phone] P. 030
The Rose Group, Inc.
Storm Routi ng Table - 1
wFllt ORIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER ORIFICE SPILLWAY OUTFLOW
min efs m u (ers) cfs cfs cfs cfy
0100 0,00 13000 1.01 010 010 0.0 0.0 0.0
3.00 113 13000 1.01 010 0.0 0.0 0.0 0.0
6-00 410 13221 1.02 0.0 0.0 0.0 0.0 0.0
9.00 10.30 14079 1.08 0,0 0.0 0.2 0.0 0.2
12.00 17.12 15898 1.19 0.0 0.0 0.7 0.0 0.7
15.00 24.49 18847 1.36 0.0 0.0 2.0 010 2.0
18.00 31-60 22902 1.60 0.0 0.0 3.3 0.0 3.3
21.00 37.65 28002 1.88 0.0 0.0 4.3 0.0 4.3
24.00 41.96 34005 2.20 0.0 0.0 5.2 0.0 5.2
27.00 44.06 40619 2.54 0.0 0.0 6.1 0.0 6.1
30.00 43-70 47460 2.88 0.0 010 618 0.0 6.8
33.00 40-93 54105 3.20 0.0 0-0 7.4 0.0 7.4
36-00 36.22 60140 3.49 0.0 010 7.9 0.0 7-9
39.00 31.52 6$233 3.73 0.0 010 8.3 0.0 8.3
42.00 27.43 69409 3.92 0.0 0.0 8.6 0.0 8.6
45-00 23.87 72792 4.07 0.0 0.0 8.9 0.0 8.9
48.00 20.77 75491 4.19 0.0 010 911 0.0 9.1
51.00 18.08 77600 4.29 0.0 0.0 9.2 0.0 9.2
54.00 15-73 79198 4.36 0.0 0.0 9.3 0.0 9.3
57.00 13.69 80314 4,41 0.0 0.0 9.4 010 9.4
60.00 11.92 81129 4.45 0.0 0.0 9.4 0.0 9.4
63SA 10-37 81576 4.47 0.0 0.0 9-5 0.0 9.5
66-00 9.03 81739 4.47 0.0 0.0 915 0-0 9.5
69-00 7.85 81658 4.47 0.0 0.0 9.5 0.0 9.5
72.00 6.84 81368 4.46 0.0 0.0 9.5 0.0 9.5
75.00 5.95 80897 4.44 0.0 0.0 9.4 0.0 9.4
78.00 5.18 80272 4.41 0.0 0-0 9.4 0.0 9.4
81.00 4.51 79515 4.37 0.0 0.0 9.3 0.0 9.3
84.00 3.92 78647 4.34 0.0 0.0 9.3 0.0 9.3
87.00 3.41 77683 4.29 0.0 0.0 9.2 0.0 9-2
90.00 2.97 76640 4,25 0.0 0.0 9.1 0.0 9.1
93.00 2.58 75530 4.20 0.0 0.0 911 0.0 9.1
96.00 2.25 74363 4.14 0.0 010 9.0 0.0 9.0
99.00 1.96 73151 4.09 0.0 0.0 8.9 0.0 819
102.00 1.70 71901 4.03 0.0 0.0 8.8 0.0 8.8
105.00 1,48 70622 3.97 0,0 0.0 8.7 0.0 8.7
108.00 1.29 69319 3.91 010 0.0 8.6 0.0 8.6
111.00 1.12 67998 3.85 010 0.0 8-5 010 8.5
114.00 0.98 66665 3.79 0.0 0.0 8.4 0.0 8.4
117.00 0.85 65324 3.73 010 0.0 8.3 0.0 8-3
120.00 0.74 63978 3.67 0.0 0.0 8.2 0.0 8.2
123-00 0.64 62630 3.61 0.0 0.0 8.1 0.0 8.1
126.00 0-56 61285 3.54 0.0 010 8.0 0.0 8.0
129.00 0.49 59943 3.48 0.0 0.0 7.9 0.0 7.9
132.00 0,42 58608 3.42 0.0 0.0 7.8 0.0 7.8
135.00 0.37 57282 3.35 0.0 0.0 7.7 0.0 7.7
138.00 0.32 55%6 3.29 0.0 0.0 7.6 0.0 7.6
141.00 0.28 54661 3.23 0.0 0.0 7.5 010 7.5
144.00 0.24 53369 3.17 0.0 0.0 7.3 010 7.3
147.00 0.21 52092 3.11 0.0 0.0 7.2 0.0 7.2
150.00 0.18 50829 3.05 0,0 0.0 7.1 0.0 7.1
153.00 0.16 49583 2.98 010 0.0 7.0 0-0 7.0
156.00 0.14 48354 2.92 0.0 0.0 6.9 0.0 6.9
159.00 0.12 47142 2.87 010 0.0 618 0.0 6.8
162.00 0.11 45949 2.81 0.0 0.0 6.6 0.0 6.6
165.00 0.09 44775 2-75 010 0.0 6.5 0.0 6.5
168.00 0.08 43620 2.69 0.0 0.0 6.4 0.0 6.4
171.00 0.07 42485 2.63 0.0 0.0 6.3 0.0 6.3
P *ft I VWI 927 AM Page 6 of 7
-02' 01 iFU 1 11:05 THE ROSE GROUP TEL: [phone] P. 035
'Uhe Rose Group , Irke.
174.00 0.06 41371 2.58 0.0 0.0 6,1 0.0 6.1
177.00 0.05 40277 2.52 0,0 0.0 6.0 0.0 6.0
180.00 0.05 39204 2.47 0.0 010 5,9 0.0 5.9
183.00 0.04 38153 2.41 0.0 0.0 518 0.0 5.8
186.00 0.03 37123 2.36 0.0 0.0 5.6 0.0 5.6
189.00 0.03 36116 2.31 010 0.0 5.5 0.0 5.5
192.00 0.03 35131 2.26 0.0 0.0 5.4 0.0 5.4
195.00 0.02 34168 2.21 0.0 0.0 52 0.0 52
198.00 0.02 33228 2-16 0.0 0.0 $.1 0.0 5.1
201.00 0.02 323I2 2.11 0.0 0.0 5.0 010 5.0
204,00 0.02 31418 206 0.0 0.0 4.8 0.0 4.8
207.00 0.01 30548 2.02 0.0 0-0 4.7 0.0 4.7
210.00 0.01 29701 1.97 0.0 0.0 4.6 0.0 4.6
213,00 0.01 28879 1.93 0.0 0.0 4.4 0.0 4.4
216.00 0.01 28080 t.98 0.0 0.0 4.3 0.0 4.3
219.00 0.01 27306 1.84 010 0.0 4.2 010 4.2
222.00 0.01 26556 1.80 0,0 0.0 4.0 0.0 4.0
225.00 0.01 25830 1.76 0.0 0.0 3.9 0.0 3.9
228.00 0.00 25129 02 0.0 0.0 3.8 0.0 3.8
23I.00 0.00 24454 1.68 0-0 0.0 3.6 0.0 3.6
234.00 0100 23803 1.65 0.0 0.0 3.5 0-0 3.5
237.00 0.00 23177 I-61 0.0 0-0 3.3 010 3.3
240.00 0100 22577 1.58 010 0.0 3.2 0,0 3.2
243,00 0.00 22003 1.55 0.0 0.0 3.1 010 3.1
246.00 0.00 21454 1.52 0.0 0.0 2.9 0.0 2.9
249.00 0.00 20931 1.49 0.0 0.0 2.8 0.0 2.8
252.00 0.00 20435 1.46 0.0 0.0 2.6 010 2.6
255.00 0100 19964 1.43 0.0 0.0 2.5 0.0 2.5
258.00 0.00 I9521 1.40 0.0 0.0 2.3 0.0 2.3
261.00 0100 19108 I.38 0.0 0.0 2.1 0.0 2.1
264.00 0.00 18732 136 0.0 0.0 1.9 0,0 1.9
267.00 0.00 18388 1.34 010 0.0 1.9 0.0 1.8
270.00 0100 18073 1.32 0.0 0.0 1.6 0.0 1-6
273.00 0.00 17783 1.30 0.0 0.0 1.5 0.0 1.5
276.00 0.00 17517 1.29 0.0 0-0 1.4 0.0 1.4
279,00 0.00 17271 1.27 0.0 0.0 1.3 0.0 1.3
282.00 0.00 17043 1.26 0.0 0-0 1.2 010 1.2
285.00 0.00 16833 1.25 0.0 0.0 1.1 0.0 1.1
286.00 0.00 16638 1.23 0.0 0.0 110 0.0 1.0
291-00 0.00 16456 1.22 0.0 0.0 0.9 0.0 0.9
294.00 0.00 16287 1.21 0.0 0.0 0.9 010 0.9
297.00 0100 16130 1.20 0.0 0.0 0.8 0.0 0-8
300.00 0100 15983 1.19 0.0 0.0 0.8 0.0 0.8
PrML90, t+aroi 9.37 AM Page 7 of 7
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OG?-0:'01(FRI) 11:09 THE ROSE GROUP TEL:[phone] P.040
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, NOV -02'01(FR1) 11:10 THE ROSE GROUP TEL:[phone] P. 041
The Rose Group, lue.
DESIGN REQUIREMENTS:
A. Retain the Post-Development 10-Year Design Discharge to Prc-Development f 0-Year Discharge
Contbut A.iation P,ri-ade Complex - :area 3 Pond Pre-DeNeloprnent Runoff- 10-1-1-
Drainage Arcs, (DA) = 3.2 acres
Overland Flow
Elevation of most remote point, (HI) = 235.5 feet
Elevation of point of design, (F12) = 220.0 feet
Length oftravel, (L) = 864.0 feet
Mutt. factor = 2.0
Travel Time (Overland) = 13.4 minutes
Channel Flow
Elevation of most remote point, (HI) = 0.0 feet
Elevation ofpoint of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mult. factor = 1.0
Travel Time (Channel) = OA minutes
Pipe Flow
Emtion ofmost remote point, (Hl) = 0.0 feet
Elevation ofpoint of design, (H2) = 0.0 feet
Length of ttavel, (L) = 0.0 feet
Mult. favor = 0.0
Travel Time (Pipe) = 0.0 minutes
Time of Concentration, (Tc) => 13.4 minutes
InteMity, (1) = 5.81 inchc&W
Composite Runoff CoefTciem, (C) 0.20
Maximum Release Rate, (Q,? => 3-7 cfs
Cornbat WaTian Bri-gade Complex - Area 3 Pond Post-Development Runoff -
Drainage Area, (DA) = 31 acres
Overland Flow
Elevation ofrrtost remote point, (H1) = 240.0 feet
Elevation of point of design, (H2) = 230.0 feet
Length of travel, (L) = 310.0 feet
Mult. factor = 210
Travel Time (Overland) = 4,9 minutes
Channel Flow
Elevation of most remote point, (H1) = 0.0 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 0.0 feet
Mull. factor = 1-0
Travel Time (Channel) = 0.0 minutes
Pipe Flow
Elevation of most remote point, (HI) 230.0 feet
Elevation of point of design, (H2) = 219.0 fat
Length of travel, (L) 558.6 feet
Malt. factor o 0.2
Travel Time (Pipe) = 0.9 minutes
Time of Concentration, (Tc) => 5.8 minutes
Intensity, (1) = 7.04 inchesft
Composite Runofl''Cocfftcicnt, (C) 0.83
Peak Release Rate, (Q1e) _> 18.7 cfs
WIMM IIIZM938AM Page t of 7
, NOVA-02' 01 !FR 1) 11 11 THE ROSE GROUP TEL:[phone] P.04-1
G
Th e Ros e
ro up, Inc.

Dete ntion Pond St ave - Storage Function
Contour Contour Incr. Acaun. Stage
Elev_ Area Storage Storage (S) (Z)
(it) (sf) (cf) (cf) 00 In (S) In (Z) Z eat
218.9 - - - -
219.0 91019 451 451 0110 6.11 _ -2.30 0.10
220.0 10,356 9,688 10.138 1.10 9.22 0.10 '. 1.17
221.0 11,758 11,057 21,195 2.10 9.96 `• 0.74 2.11
222.0 13,211 12,485 33,680 3.10 10.42 `. 1.13 3.05
223.0 14,721 13,966 47,646 4.10 4 10.77 1.41 4.03
224.0 16,286 15,504 63,149 5.10 1 11.05 1.63 5.04
225.0 17,908 17,097 80,246 6.10 ? 11.29 1.81 6.10
Regression Output
b= 1.25 (X Variable Cocff)
Ks= 8.315 (c' m'°)
Stage - Storage Equation is of the form: S = (Ks)(V
a mail My M11111al
Barrel
Number of Barrels r-
Dia, of Barrel =
Area of Harrel, (Ab) _
Pipe Len8th, (L) =
Friction Coeff., (Kp)
Inv. of Barrel =
Riser
Elev. of Riser Crest =
Rectangular
Length Weir- 24 inclics
Total Weir Length=
Aria of Riser=
Orifice in Riser
Dia. of Orifice =
Number of Orifices =
Area of Orifice, (Ab)
Orifice Co ffiicient (Cd _
Inv, of Orifice=
Width Weir=
1
24 inches
3.14 sf
74.4 feet
0.01058
219.00 feet
224.00 feet
24 inches
8.00 fat
4.00 sq. ft.
4 inches
4
0.09 sf
0.60
220.00 feet
Fmer,_,enc? Spitttrai ?
Width of Spillway (Approx.)=
Weir Coefficient
Crest Elevation =
20 feet
3.3
224.50 feer
KALB& 119MI 9:36 AM
Page 2 of 7
-NU -O?' Ol IFRI! 11:11 THE ROSE GROUT TEE:910v?33400 P. 043
Estimated Maximum Rdease Rate, (Q LO) =
Natenal Water Surface Elev. _
Water Surface Elev. @ Outlct (Q,o) =
3,7 cfs
220.0 feet
222.6 feet
pne[a 7 VWI R38 AM paws or 7
-NOV -02'01(FR i l :? THE ROSE GROUP
Peak inflow, (Qp) - 1 18.7 cfs
TEL:[phone]
Time to Peak Calculations CN= 90 P= 4.82 in
Q`= 3.70 in. (depth ofnlnaff)
Vol= 3,013 cf (vol. oftunoff)
Time to Peak, (Tp) => 27.6 minutes
(SCS TR-55)
t Q
in WS)
0100 0.000 0 0.00
0.11 0-029 3 0.54
0.22 0.112 6 2.10
0.33 0.241 9 4.50
0.44 0.399 12 7.46
0.54 0569 5 10.64
0.65 0.731 is 13.67
0.76 0.866 l 16.20
0.87 0.959 4 17.94
0.96 0.999 7 18.69
1.09 0.981 fl 18.35
1.20 0.907 3 16.97
1.31 0.795 6 14.87
1.41 0.690 39 12.91
1.52 0-599 42 11.21
1.63 0.520 5 9.73
1.74 0.451 8 8.44
1.85 0.392 51 7.33
1.96 0.340 54 636
2.07 0.295 57 5.52
2.18 0.256 60 4.80
2.28 0.223 63 4.16
2.39 0.193 66 3.61
2.$0 0.168 69 3.14
2.61 0.146 72 2.72
2.72 0.126 75 2.36
2.83 0.110 78 2.05
2.94 0.095 8l 1.78
3.05 0.083 84 1.55
3.16 0.072 87 1.34
326 0.062 90 1.17
337 0.054 93 1.01
3.48 0.047 96 0188
3.59 0.041 99 0.76
3.70 0.035 02 0.66
3,91 0.031 05 0.57
3.92 0.027 08 0.50
4.03 0.023 11 0.43
413 0.020 14 0.38
4.24 0.017 17 0.33
435 0.015 20 0.28
4.46 0.013 23 0.25
4.57 0.011 t26 0.21
4.68 0.010 129 0.19
4.79 0.009 132 0.16
4.90 0.007 i 35 0.14
5.01 0.006 138 0.12
5.11 0.006 [41 0.11
5.22 01005 44 0.09
pd,*ad. ,1W 9M AM
S= 1.11 in.
P. 044
Page 4 of 7
NO'. -02' 01 IFR11 11 .3 THE ROSE GROLP TEL:[phone] P. 045
533 0.004 47
1 0.08
5.44 0.004 1
160 0.07
5.55 0-003 153 0.06
5.66 01003 156 0.05
5.77 0.002 59 0.05
5.88 0.002 162 0.04
5.98 0.002 65 0.03
6.09 01002 68 0.03
6.20 0.001 71 0.03
6.31 0.001 i74 0.02
6.42 0.001 177 0.02
6.53 0.001 i 80 0.02
6.64 0.001 J83 0.01
6.75 0.001 186 0.01
6.85 0.001 189 0.01
6.96 0.001 i92 0.01
7.07 0-000 i95 0.01
7.18 0.000 198 0.01
7.29 0.000 201 0.01
7.40 0.000 204 0.01
7.51 0.000 207 0.00
7.62 0.000 '.10 0.00
7.73 0.000 213 0.00
7.83 01000 216 0100
7.94 0.000 219 0.00
8.05 0.000 222 0.00
8.16 0.000 225 0.00
827 0.000 228 0.00
8.38 0.000 231 0.00
8.49 0.000 234 0.00
8.60 01000 1237 0.00
8.70 0.000 240 0.00
8.81 0.000 ? 43 0.00
8.92 0.000 1246 0.00
9.03 0.000 249 0.00
9.14 01000 52 0.00
9.25 0.000 1
55 0.00
9.36 0.000 258 0.00
9.47 0.000 261 0.00
958 0.000 264 0.00
9.68 0.000 267 0.00
9.79 0.000 270 0.00
9.90 0.000 273 0.00
10.01 0.000 276 0.00
10.12 0.000 279 0.00
10.23 0.000 282 0.00
10.34 0.000 285 0.00
10.45 COW 288 0.00
10.55 0.000 291 0100
10.66 0.400 294 0.00
10.77 0.000 297 0.00
10.88 0.000 300 0.00
IWIAMI IMAM 7.38 AM Page a of 7
NOV. -0- 101 IFRI i 11: 13 THE ROSE GROUP TEL:9103?33400 P,046
1 0-yr
WEIR ORIFICE EMERGENCY Tar
TIME INFLOW STORAGE STAGE RISER RISER OPJFFCE SPILLWAY OUTFLOW
"-M Cf8 (en mt L" Cfs (Cfs) d 0
0.00 0.00 8370 .01 0.0 0.0 0.0 0.0 0,0
3.00 0.54 8370 .01 0.0 0.0 0.0 0.0 0.0
6.00 2.10 8467 1.01 0.0 0.0 010 0.0 0.0
9.00 4.50 8844 .05 0.0 0.0 0.0 0.0 0.0
12.00 7.46 9647 .13 010 0.0 0.2 0.0 0.2
15.00 10.64 10962 .25 0.0 0.0 0.4 0.0 0.4
18.00 13.67 12799 1.41 010 0.0 0.8 0.0 0.8
21.00 1620 15111 11.61 0.0 0.0 1.1 0.0 1.1
24.00 17.94 17827 >f.84 0.0 0.0 1.4 0.0 1.4
27.00 18.69 20809 2.08 0.0 0.0 1.6 0-0 1.6
30.00 18.35 23884 2.32 0.0 0.0 1.8 0.0 1.8
33.00 16.97 26862 2.55 0.0 010 2.0 0.0 2.0
36.00 14.87 29562 2.75 010 0.0 2.1 0.0 211
39.00 12.91 31858 2.92 010 0.0 2.2 0.0 2.2
42.00 1121 33782 4.06 010 0.0 2.3 0.0 2.3
45.00 9.73 35383 3.18 0.0 0.0 2.4 0.0 2.4
48.00 8,44 36706 3.27 0.0 0.0 2.4 0.0 2-4
51.00 733 37788 3.35 0.0 0.0 2.5 0.0 2.5
54.00 636 38662 3.41 0.0 0.0 2.5 0.0 2S
57.00 5.52 39355 3.46 U 0.0 2.5 0.0 2,5
60.00 4.80 39892 3.49 0.0 0.0 2.6 0.0 2.6
63.00 4,16 40295 in 0.0 0.0 2.6 0.0 2.6
66.00 3.61 40580 3.54 0.0 0.0 2.6 0.0 2.6
69.00 3.14 40765 3.55 0.0 0.0 2.6 0.0 2.6
72.00 2.72 40863 3.56 0.0 0.0 2.6 0-0 2.6
75.00 2.36 40886 3.56 0.0 0.0 2.6 0.0 2.6
78.00 2,05 40844 3.56 0.0 010 2.6 0.0 2.6
81.00 1.78 40746 3.55 0.0 0.0 2.6 0.0 2.6
84.00 1.55 40600 3.54 0.0 0.0 2.6 0.0 2.6
87.00 134 40413 3.53 010 0.0 2.6 0.0 2.6
90.00 1.17 40190 3.51 0.0 0.0 2.6 0.0 2.6
93.00 1.01 39937 350 0.0 010 2.6 010 2.6
96.00 0.88 39658 3.48 0.0 0,0 2.6 0.0 16
99.00 0.76 39357 3.46 0.0 0.0 2.5 0.0 2.5
102.00 0,66 39037 3.43 0.0 0.0 2.5 0.0 2.5
105.00 0.57 38701 3.41 0.0 0.0 2.5 0.0 2.5
108.00 0.50 38352 339 0.0 0.0 2.5 0,0 2.5
111.00 0.43 37992 3.36 0.0 0.0 2.5 0.0 1$
114.00 0.38 37622 3.33 0.0 010 2.5 0.0 2.5
117.00 0.33 37245 331 0.0 0.0 2.5 0.0 2.5
120.00 0128 36862 3.28 0.0 0.0 2.4 0.0 2.4
123.00 0.25 36474 3.25 0.0 0.0 2.4 0.0 2.4
126.00 0.21 36082 3.23 0.0 0.0 2.4 0.0 24
129.00 0.19 35687 3.20 0.0 0.0 2.4 0.0 2.4
132-00 0.16 35290 X3.17 0.0 0.0 2-4 0.0 2.4
135.00 0.14 34892 3-14 0.0 0.0 2.4 0.0 2.4
13900 0.12 34492 3.11 0.0 010 2-3 0.0 2.3
141.00 0.11 34093 08 0.0 0.0 2.3 0.0 2.3
144.00 0.09 33694 1 3.05 0.0 0.0 23 0.0 2.3
147.00 0.08 33295 3.02 0.0 0.0 2.3 010 2-3
150.00 0.07 32898 3.00 0.0 0.0 2.3 0.0 2.3
153.00 0.06 32502 2.97 0.0 010 2.3 0.0 2.3
156.00 0.05 32107 2.94 0.0 0.0 2.2 0.0 2.2
159.00 0.05 31714 2.91 0.0 0.0 2.2 0.0 2.2
162.00 0.04 31324 .88 0.0 0.0 2.2 0.0 2.2
165.00 0.03 30935 .85 0.0 0.0 2.2 0.0 2.2
168.00 0.03 30549 2.82 0.0 0.0 2.2 010 2.2
171.00 0.03 30166 2.80 0.0 0.0 2.1 010 2.1
pnnLa: 111=1 8:38 AM
Pne6of7
?.N04-02' 011PR1) 11:14 THE ROSE GROUP TEL:[phone] P. 04'
174.00 0.02 29785 2 77 0.0 0-0 2.1 0.0 2.1
17740 0102 29407 74 0.0 OA 2.1 0.0 2.1
180.00 0.02 29031 71 0.0 0.0 2.1 0.0 2.1
193.00 0.01 28659 68 0-0 0.0 2.1 0.0 2.1
186.00 0.01 28289 66 0.0 0.0 2.0 0.0 2.0
189.00 0.01 27923 .63 0.0 0.0 2.0 0.0 2.0
192.00 0.01 27560 .60 0.0 010 2.0 0.0 2.0
195.00 0101 27200 .57 0.0 0.0 2.0 0-0 2.0
198.00 0.01 26843 .55 0.0 0.0 210 0.0 2.0
201.00 0.01 26459 .52 0.0 0.0 2.0 0.0 2.0
204.00 0.01 26139 .49 0.0 0.0 1.9 0.0 1.9
207.00 0.00 25792 .47 0.0 0.0 1.9 0.0 119
210.00 0.00 25448 .44 0.0 0.0 1.9 0.0 1.9
213.00 0.00 25108 .41 0.0 0.0 1.9 0.0 1.9
216.00 0.00 24771 .39 0-0 0.0 1.9 0.0 1.9
219.00 0.00 24436 36 0.0 0.0 1.8 0.0 1.8
222.00 0.00 24108 .34 0.0 0-0 1.8 0.0 1-8
225.00 0.00 23781 .31 010 0.0 1.8 0.0 1.8
228.00 0.00 23458 .29 0.0 0.0 1.8 0.0 1.8
231.00 0.00 23139 .26 0.0 0.0 1.8 0.0 1.8
234.00 0.00 22823 .24 0.0 010 1.7 0.0 1,7
237.00 0.00 22510 .21 0.0 0.0 1.7 010 1.7
240.00 0.00 22202 19 0.0 0.0 1.7 0-0 1.7
243.00 0.00 21896 .17 0.0 0.0 1.7 0.0 1.7
246.00 0.00 21595 .14 0.0 0-0 1,7 0.0 1.7
249.00 0.00 21297 .12 0.0 0.0 1.6 0.0 1.6
252.00 0.00 21002 .09 0.0 0.0 1.6 0.0 1.6
255.00 0.00 20711 g.07 0.0 0.0 1.6 0.0 1.6
258.00 0.00 20424 .05 0.0 0.0 1.6 0.0 1.6
261.00 0.00 20141 .03
1 0.0 0-0 1.6 0.0 1.6
264.00 0.00 19861 .00 0.0 010 1.5 0.0 1.5
267.00 0.00 19585 .98 0.0 010 1S 010 1.5
270.00 0.00 19312 .96 0.0 0.0 1-5 0.0 1.5
273.00 0100 19043 .94 0.0 0.0 1.5 0.0 1.5
276.00 0.00 18778 .92 0.0 010 1.5 010 1.5
279.00 0.00 18517 .89 0.0 0.0 1.4 0.0 1.4
282.00 0.00 18259 .87 0.0 0.0 1.4 0.0 1.4
285.00 0.00 18005 1.85 0.0 0.0 1.4 0.0 1,4
288.00 0.00 17755 .83 010 0.0 1.4 0.0 14
291.00 0.00 17509 .81 0.0 0.0 13 0-0 1.3
294.00 0.00 17267 1.79 0.0 010 1.3 0.0 1.3
297.00 0.00 17028 1.77 0.0 010 1.3 0.0 1.3
300.00 0.00 16793 .75 0.0 0.0 1.3 0.0 1-3
,M%d 114M 91.30 AM Page 7 of 7
y V0:'.-021'011FRIf ll:l5 THE ROSE GROUP
TEL:[phone] P.018
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