HomeMy WebLinkAboutDrainage Reports - 02/27/2004G
City Of Vt. Collinsi r ved Plans
' APpr(•ved
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1 t,
ZU INAL DRAINAGE REPORT
FOR
' HOUSKA SOUTH SUBDIVISION
TEMPORARY GRAVEL SURFACE
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' I10USKA SO OTmstr dmgrpt.doc.dot
OLD TOWN MASTER DRAINAGE PLAN
NOVEMBER 25, 2003
PREPARED BY
STEWART & ASSOCIATES, INC.
P.O. BOX 429
103 SOUTH MELDRUM STREET
FORT COLLINS, COLORADO 80522
TEL: 970.482.9331
FAX: 970.482.9382
00 2 2003
STEWAU&ASSOC[ATES
Consulting Engineers and Surveyors
'
November 25, 2003
'
Mr. Wes Lamarque
Stormwater Utility
City of Fort Collins
'
P.O. Box 580
Fort Collins, CO 80522-0580
' Dear Wes,
' The following is the analysis for the stormwater runoff at Houska South Subdivision. Lot One
has an area of 2.1937 acres. The existing ground cover is dirt and a small amount of impervious
surface.
' The interim temporary surface will be gravel. The final use of the site will have a building and
hard surface parking.
The 2-year historic runoff flows Northerly to Riverside Avenue from the South end of Lot One.
The 2-year historic runoff rate is 0.56 c.f.s. and the 100-year historic runoff rate is 2.49 c.f.s.
' The temporary gravel surface will have a developed 2-year runoff rate of 1.60 c.f.s. The 100-
year developed runoff rate will be 7.44 c.f.s.
I am proposing that we do not have detention due to the fact the 9-foot outfall pipe in Lot One
would be in the area adjacent to the detention pond. Also the site is within approximately 650
' feet of the Cache la Poudre River. The runoff from the gravel surface should be allowed to
discharge before the upstream runoff discharges into the river.
' The runoff will flow from the South line of the site along the East line of the site and then into
the Riverside Avenue curb and then into the existing curb inlet near the Southeasterly corner of
the site.
' If you have any questions regarding this analysis, please call.
' Sincerely,
� � � � � �r •~Ti4/���r�;Th
Richard A. Rutherford, P.E. & L.S.
RAR/meh
7, 9
James H. Stewart and Associates, Inc.
'103 S. Meldrum Street • P.O. Box 429 • Ft. Collins, CO 80522
HOUSKA SO 01 mstr dmgrpt.dm.dot 970/482-9331 • Fax 970/482-9382
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STEWART& SSOCIATES 103 PH. S. g LDR31 FM, FAX ORT COLLINS, CO 80521
Consulting Engineers and Surveyors
82-9382
By: Date: &0\,e 7,1.Z,003 Client: 00.5 kA 00—F rALL GLC'_ Sheet No. _of
Project: 11 n ()s Ka S-o u TH S- u g cw► rlo A)
Subject: H IzTOr- I c ALC1JLAT10nNr
H is To 2 r c. R Asi ,v
STEWART9406SOCIATES 10 82 9 LDR331 FM, FORTAX COLLINS, CO 80521
Consulting Engineers and Surveyors
82
By: R, A. P-, Date: A/av, , T L 2 003 Client: H our k /4- 6 u T FALL. L A G Sheet No. of
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CERTIFICAnav
To: Nouska Callan LLC
City of Fort Collins
Land Tribe Guarantee Company
boas Ostrom, ANamey of Law
This is for OImWY flat this map or plat and the survey on which it is hoxd were
mode as accerdorroe with 'Minimum Slandmd Detail Reeulmeents far ALTA/ACSM
Land Tiger Surnboh, jointly eetaboshM are adopted by ALTA and ACSM and NSPS in
19". and intense, items 1-e and 6-11 and 1e-16 Table A thereof, and meets
the AccufaCy Standards (m adopted by ALTA and ACSM and NSPS and in effect on
Law date Of one mrtAlcation, un" sd further cerf/6es that paper Frold
CraLeduAA instrumenteflM, and adeauafe sYMy personnel wens employed m order
to schism results contestable N those out/bmd in Me "Minimum Angle. Distance
and Clasurb Regulrwmsnf r for Survey Measurements Which Control Land floundanes
for ALTA/ACSM Land Title Su H.
Cuts,, Mnwrr.r In_>_onr
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ReRegistrationNo.. 5018
NOTES
I. Ilse area of the tract /s 2_f43`9r
2 The zoning is CL - Commercial Limited.
J, Thus property is located within the Flooded N of CN Town Master thein,
Seem Plan dated January, 2. 199J.
irThen is observable evidence of norm sewer construction on this site within
recent marble.
5. Them am no changes in street rlyhf-Of-way lines either completed or
popwed, and antibible I m tees City of Fact Collins. Alegi them is he evidence of
recent larval or sidewalk constructb+ or febalm
6. Then is no annul le evideme of site use as a solid waste dump, sump or
sanitary Iand RIL
LEGAL DESCRIPTION
A tract 0f lad situate in the NE I/A of the NE 114 of Section IS Township l
North lbrilge 69 What of the 6tb P.M., City of FM Collins. County of Lonmer. State
of Comado, which considering the Eosf line of the NE 1/e of said Section IJ as
Mang NCO 25W E and with oil bovmgs cantoifed herein relative themlp begins
at a pomf which berre M9 2) 20 E 538 50 feet from Me 5W comer of sold NE
r/A of ones ME 1/e of Section IJ or estabishea by Howard Erors, (sold SW comer
boon N00'J5'J6'E 1315,99 feet, enf again hQW-2720"W I3e9,59 feet from the E
rid corner, of slid Section 13); and runs fhsnce from $04 point of beginning.
hNX142's0W 521.91 feet thence S69.27-20"E 20W feet thence N00'32'40"E
116,69 feet to the Southerly side of Riverside Avenue: thence aN p said Southerly,
ide. Se9e3e'00"E 192.59 feet thence S0095'J6"W e66.61 reef. thence
S01'0642'.W 22.07 feet thence SOCJ5 J W 2e.22 feet: thence N69527'20'W
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