HomeMy WebLinkAboutLetter to Staffll9j llJW(p' 11/t#'(i{
/,'.LJ4 KLING ENGINEERING & SURVEYING
Consulting Engineers • Land Surveyors
4101 S. Texas Avenue, Suit e A
Bryan, Texas 77802
S.M. Kling, R.P.L.S.
Telephone 979/846-6212
Fax 979/846-8252
B.J. Kling, P.E., R.P.L.S. - Inactive
Post Office Box 4234 w_
Bryan, Texas 77805 ~ QO
Memo: November 11 , 2008
To: City of College Station -Development Services
c/o Carol Cotter,~.E.
From: Fred Paine, P.E.
Re: SourceNet Parki ot ddition
Lot 2-B, Block 1, The Business Center at College Station Phase 1
Drainage Report Revisions
Dear Carol,
The following is a list of revisions to the originally submitted drainage report.
1. Page 3: Revised Table 1 -DA-II-Post to correct C-Value and runoff rates (Q)
2. Page 3: Revised first sentence after Table 1 -maximum increase in runoff is
approximately 12 cfs at the 100 year event.
3. Page 3: Revised Table 2 -Total peak runoff rates to incorporate DA-II post
corrections
4 . Page 4: Revised Table 3 -Entire table to incorporate DA-II post corrections
5. Appendix 1: Revised "Peak Flow Calculations" -DA-II to correct C-Value and
runoff rates (Q)
6. Appendix 1: Revised "Total Flow Contributing to Tributary to AC-1 ",Sections 1-5,
Total peak runoff rates to incorporate DA-II post corrections
7. Appendix 2: Revised Manning's Open Channel Flow analysis of Ditch Sections
1-5 to reflect corrected , post developed, peak flow rates. Added new 100 yr-post
print outs.
8. Appendix 2: Revised Manning's Open Channel Flow analysis of Ditch Section 2 -
revised left bank station (shift 16' inward).
9. Appendix 2: Revised Manning's Open Channel Flow analysis of Ditch Section 5 -
revised left bank station (shift 1 O' inward)
10. Appendix 2 : Revised post developed HEC-2 model to incorporate DA-II post
corrections. Added new summary results print out.