HomeMy WebLinkAboutGrading Plans - 12/05/2016DRAINAGE MEMO REPORT
Job No. KEYM1-14457-A1
Date signed: December 1, 2016
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Mike Keys
521 Maple St.
Ft. Collins, Colorado 80521
Re: Drainage at your garage at the above address, Ft. Collins
Dear Mr. Keys:
I reviewed the grading plans for the subject project. The
runoff will leave the lot via swales on the east and west sides,
and flow north out to the Maple St. curb and gutter. There will
be no adverse impacts to adjacent properties.
Thank you for retaining us to perform this structural
evaluation service. Please feel free to contact our office if you
have any further questions.
Very truly yours,
MARK BENJAMIN, PE, MSCE, SECB, CPHC
®Certified in the practice of structural engineering¾
®Certified Passive House Consultant¾
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W 45 FT of E 90 FT of LOT 6 Blk 62, FTC
B1606534, B1606737, B1606738
Grading plan accepted 12/5/2016 DM
N= setback line
Grade Plan, Proposed
521 Maple St
Fort Collins CO 80521
Key
New lower slope approach from street (~118 sf)
New lowered section of sidewalk (~48 sf)
New 1/12 slope sidewalk (~104 sf)
New standard concrete (~770 sf)
New stamped concrete (~490 sf)
Existing sidewalk unaltered
Scale: 1/8"=1'-0"
Curbing as necessary
98.8' (49")
98.8' (49")
100.0' (34.5")
finished
floor
level
(55") before
6-13/16" step risers (2)
12" width tread (1)
Ramp down to patio level
97.4' (65")
97.8' (60")
97.9' (59")
Ridge
Linden
Tree
98.1' (57.5")
98.7' (50")
98.3' (55")
98.2' (56")
97.8' (60")
96.1' (81")
95.7' (86")
96.6' (75.5")
98.8' (49")98.2' (56.5")
97.9' (59")
98.3'
98.1' (56.5")
98.8' (49")
Swale formed in conc.
Garage/carport mono-pour concrete (765 sf)
Ramp up to Carport
Planter area (~50 sf)
98.3' (55")
All new concrete incl. garage & carport 2295 sf
Minus existing removed, replaced
(old garage,walks/drive respectively) - 486 sf
Plus footprint additions to house + 395 sf
Total Impervious added to lot and R.O.W. ~2204 sf
95.9'(83.5")
Crown Jade Design and Engineering, LLC
12/1/2016
Job No. KEYM1-14457-A1
12/1/16