HomeMy WebLinkAboutLot Certifications - 12/15/2000 (3)`a
ASSGCIATc `
I.r
December 15, 2000
Mr. Jay Barber
City of Fort Collins
Stormwater Utility
700 Wood Street
FortCollins, Colorado 80521
Re: Drainage Certification for Lot-20713Iock 7, Fossil-Lake-FUD,_First_Filing�
Dear Jay,
We recently performed an as -built survey for the above -referenced lot to verify whether its
grading -met the approved grading and drainage plan. Spot elevations were checked at
pertinent locations and, compared to the grading plan. The enclosed drawing shows these as -
built elevations.
In general, the lot and building meet the requirements of the grading and drainage plan and
there is positive drainage away from the building on all sides..The final grade adjacent to the
garage is 4904.9; the garage floor elevation is 4905.21. The final grade around the remainder
of the house ranges from 4902.3 to 4905.0; which is sufficiently below the finished floor
elevation of 4905.57. These elevations compare favorably to the. elevations shown in the
grading plan (top of foundation at 4905.8 and finished floor elevation at 4906.76). .
The intended drainage patterns are met by the grading on this lot: the grading for the lot
provides for positive drainage away from the house, but also allows the front.yard to drain
northwest to Twin Heron Court and the back of the lot to drain south and east the adjacent open
space tract, as shown on the grading plan. ,
It is our recommendation that the CO for Lot 20, Block 7 be released since the Builder graded
the lot to meet design drainage patterns. If you have any questions, please call.
Sincerely,
Owen Ayres & Associates, Inc.
Christopobr L. Doherty, P.E.
Project ngineer
CLD:sp
Enclosure
Owen Ayres & Associates, Inc.
Engineers/Scientists/Surveyors
3665 JFK Parkway, Building 2, Suite 200, P.O. Box 270460: Fort Collins, CO 80527
(970) 223-5556, Denver Metro (303) 572-1806, FAX (970) 223-5573
BARBI2LT.DOC
32-0343.00
Printed on recycled paper
TMNh Heron
Court
4903.
49078
4902.8
Z
is s to
GRAPHIC SCALE
.1"=20'
Lot 20. Block 7, Fossil Lake PUO, First Fling
3293 Twin Heron Court
_ \ 4899.7
4902.3 \�
�489H.7 /
,
• i 4898.9
4901.0
4902.0
------------%