HomeMy WebLinkAboutLot Certifications - 02/27/1996I
UCTURED ENGINEERING
C C 318 East Oak Street
v Fort Collins, CO 80524
(970)-495-0810
February 27, 1996
Mr. Basil Hamden
City of Fort Collins
Stormwater Utility
P.O. Box 580
Fort Collins, CO 80522
Dear Glen,
A field investigation of lot 23 (1213 Indian Paintbrush Court) of,Greenbriari
Village=2nd--Filing! shows that the drain pan has been constructed along the rear of
the lot according to plan and it is in good condition. The top of foundation elevation
was measured at ele. 68.7. The minimum elevation recommended on the utility
drawings was 69.0, or about 3-1/2" higher than actual. However, maximum water
surface elevation (from the adjacent Evergreen West detention pond at 100-yr
capacity) is expected to be a little less than 66.0, which still provides almost 3' of
freeboard.
The swale housing the drain pan in the rear is approximately 3:1 on the west
side and 4:1 on the east side. Runoff quantities anticipated to be collected in the
pan will not leave the drainage easement provided. Therefore, in our opinion, finish
grading meets or exceeds the intent of the grading and drainage plan. The
elevations were obtained with both a hand level and a self leveling builders level.
Attached is a typical section of the drainage swale as.constructed.
Please let me know if there is anything else you need from me.
Truly! Yo
Jo%eph P. Marc
Structured Engi
Enc.
r1
L i
r� I
w65f Gas r 68UF
.rl
G4.1® VA,op Lo t--
�� Yv�2ujuviali SWa.'e � �Z13 1'^r�!b,.� GIN}UdvSl