HomeMy WebLinkAboutSite Certifications - 05/02/2002MAY-02-2002 THU 12:23 PM EVERITT COMPANIES FAX NO. 19702234156
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MAY-02-2002 THU 12:23 PM EVERITT COMPANIES
1-024 f:4h AM i t40RTHFNNCNA
PAX N0, 19702234156 P. 02
NORTHERN
1INGERVICKSY NO
SiLRVICBS, INC.
yebmary 4, 2002
Tracy Downs
Le ftw County Engineering Department
P.O. Box 1190
Fort Collins, Colorado 90522
Pam: Fossil lake Second Filing
Pbase Ono Drainage Improvements
Project Number. 99-059.00 CEEL
,49?e Z p 304 ?""( /
Fib Lo a21-jp(o(q
Dear Tracy:
We have completed our review of the as -constructed major dre UP impmvetaao f the
above referenced project as it relates to the approved foal utility plan damp• T� iwa1 neon is
intended to verify conrplianee of the constructed Major drainage improvements for Phase One of the
approved C MSU' lIC600 plans erdtled "Final Utility Plans for Fossil Lake P.U.D., Second Films." We
the
yn'g provide you with certification on the remaining phases of the project as they
are completed in future' ors in December of 2001 and January Of
Field surveys of the site were conducted by King Sunray conducted a
2002 and have been used to verify general oonformauce to the Plans. The project engineer
site visit on January 31, 2002 to verify grading and major drainage imprwaments. Based on the survey
data provided by King Surveyors and personal site inspection. suction of Water Quality Pond 2.
Swale 1, Swale 25, and Culvert S (please reftenm the final drainage plan) bave beau covou red in
general comphaaoe with the design with the following exceptions listed below.
The outlet structure for Water Quality Pond 2 has not been completed. Parts required to
complete tho structure are on order, According to the developer, these parts should be obtained
shortly, and construction of the outlet structure willbe completed. Once the outlet structure is
complete, a sediment trap will be installed.
Due to difficulties in installing sediment traps at the inlet of culvert 5, and at the olrttet of Swale
1.1 have told the contractor that straw bale dikes would be an acceptable alternauve at these locations.
These have been put in place. The sediment trap at the outlet of WSW Quality Pond 2 should be put in
place shortly.
',Ilia vohime for Water Quality Pond 2 was calculated as 1.90 acre-feet from the topography
provided by Ift Surveyors. This is in excess of the required Water Quality Capture Vchrme of .92
atae-feet fisted in the drainage report. There are minor grading incousistencies throughout the first
phase of the site; however, the performance of the drainage design, in my, opinion, will not be hindered.
420 SOUTH HOWES, SUITE 207 / COAT COLLINS, COLORADO 80521 1 270.221.4159 1 PAX 970.221.4159
MAY-02-2002 THU 12:23 PM EVERITT COMPANIES FAX NO. 19702234156 P. 03
b- 1-U!; 7;4HAM:NORrMkRNCNG
To the best of my knowledge, apart from the exceptions listed above, the major draiaage
improvements for Phasc One ofFossil Take Second Biting are constructed in substantial mmplimce
with the design intent of the approved construction drawings. Tf you require additional iafiormation or
analysis regarding this project pkase contact me at 2214158.
Sincerely,
NORT'BERN RNGINEMNG SERVICES, INC.
Aaron T. C.`var, P.E.
Project Engineer
. ;r 21
Roger A Ciutiss, F.E.
Vice President
oc! Stan Everitt, The I'svesitt
27362
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