HomeMy WebLinkAboutRapid Conveyance DocumentationKLING ENGINEERING & SURVEYING
Consulting Engineers s Land Surveyors
4101 S. Texas Avenue, Suite A Post Office Box 4234
Bryan,'Texas 77802 Bryan, Texas 77805
Telephone 979/846 -6212
Fax 979/846 -8252
S.M. Kling, R.P.L.S.
Fred Paine, P.E., CFM
City of College Station June 20, 2011
Planning & Development Services / Engineering Services
Memo:
From: Fred Paine, P.E., CF
4S F
Re: Lot 3B, Block 1, Gateway Phase 3 & Block "Y" University Park Section II
Panera Bread Development
Platting Status Exemption to 2009 Drainage Ordinance
To Whom it May Concern:
The above referenced lots were platted as of the following Dates
Lot 3B, Block 1, Gateway Phase 3 - Final Plat of The Gateway Subdivision
Lots 3A, 3B, 3C and 3D, Block 1, Phase 3
Being a Replat of the Gateway Subdivision
Lot 1, Block 1, Phase 3 — vol. 9112, pg. 138
File Date: May 26, 2009
Block "Y" University Park Section II - A Resubdivision of Blocks N and P
University Park Il Subdivision
vol. 817, pg 384.
File Date: April 16, 1982
Date of the Ordinance approval: July 9, 2009
Platting Exemption Status is claimed under Section 5 -E.I 1.3.b - Exemption
"Lots legally platted and recorded at Brazos County Court House
prior to the adoption of this ordinance..."
Accompanying this memo is the Rapid Conveyance documentation letter previously approved for the
Gateway Phase 3 Subdivision.
KLING ENGINEERING & SURVEYING
Consulting Engineers • Land Surveyors
4101 Texas Avenue, Suite A Post Office Box 4234
Bryan, Texas 77802 Bryan, Texas 77805
Telephone 979/846 -6212
Fax 979/846 -8252
B.J. Kling, P.E., R.P.L.S. - Inactive
S.M. Kling, R.P.L.S.
Memo: November 13, 2007
To: City of College Station - Development Services
c/o Alan Gibbs, P.E., Senior Assistant City Engineer
From: Fred Paine, P.E.
Re: Gateway Phase 3
Drainage: Rapid Conveyance Documentation
The Gateway Phase 3 development is located within the channel reach section of
Burton Creek where detention for flood control (Type 1 detention) is not required.
The Gateway Phase 3 development is immediately adjacent to and discharges
directly into The Tributary to Burton Creek Floodplain. This tributary acts as the
conveyance pathway to Burton Creek main channel. No additional development can
occur between Gateway Phase 3 and the Burton Creek floodway. Based on the Longaro
& Clarke 2003 LOMR report (hydrologic model), the approximate total contributing area
to the downstream conveyance pathway in the vicinity of Gateway Phase 3 is 172 acres.
The developable area of Gateway Phase 3 is approximately 4 acres. It is anticipated
that peak discharges from Gateway Phase 3 will enter the conveyance pathway prior to
peak stage and discharge along the tributary.
Gateway Phase 3 DEVELOPMENT TRIBUTARY TO BURTON CREEK
(Using Oct. 30, 2003 LOMR Floodplain Model
Tc= 10mins Tp from DA's 1 -4 = 4.42 hrs
"I have conducted a topographic review and field investigation of the existing and
proposed flow patterns for stormwater runoff from The Gateway Phase 3 to the main stem of
The Tributary to Burton Creek & Burton Creek At build -out conditions allowable by zoning,
restrictive covenant, or plat note, the stormwater flows from the subject subdivision or site
project will not cause any increase in flooding conditions to the interior of existing building
structures, including basement areas, for storms of magnitude up through the 100 -year
event'
Alfred A Paine, P.E.
Licensed Professional En
State of Texas No. 97221
ALFRED A. PMNE
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