HomeMy WebLinkAbout429 S. WHITCOMB STREET CARRIAGE HOUSE - PDP - PDP130006 - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORTI � o
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PROPOSED GRADING
SCALE 1' = 30'
` I Sheldon House B&B
616 W Mulberry St —
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PROPOSED
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20' ALLEY
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100 YEAR FLOOD
PLAIN BOUNDARY
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BENCH MARKS
CITY OF FORT COLLINS
BENCH MARK #1-11
ELEVATION = 5005.44
A CITY OF FORT COLLINS
ALUMINUM CAP MARKED
1-11, LOCATED AT THE
SOUTHEAST CORNER OF
MULBERRY STREET AND
LOOMIS AVENUE, AT THE
NORTHEAST CORNER OF A
CONCRETE TRAFFIC SIGNAL
BASE.
421 South
I Whitcomb
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S WHI TCOMB A VENUE
/100 YEAR FLOOD
PLAIN BOUNDARY
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FO R B E S ENGINEERING
2908 CHERLY STREET,
CLIENT CONOR FZANAGAN
PREPARED BY
KEWN FORBES
PROJECT 429 S WHITCOMB ST
DRAWN:
D47E
Ft. Collins, Colorado 80524
Tele: (970) 295-4874
FT COLLINS, CO
KEF
2-25-13
SHEET T1TLE.• PROPOSED GRADING
PROJECT
DWG
FULL SERVICE OMWUM aW7M AHD DESM
aM/VTRUC7UR4i- FOUAMLAND & MLNWW RAWNiG
& DRAINAGE PLAN
13-1720
1720—PR
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EXISTING GRADING
SCALE 1' = 30'
Sheldon House B&B
616 W Mulberry St
L---------- —
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20' ALLEY
1
100 YEAR FLOOD
PLAIN BOUNDARY
I �
1 / i
BENCH MARKS
CITY OF FORT COLLINS
i I BENCH MARK #1-11
1 g I ELEVATION = 5005.44
\ I ss I A CITY OF FORT COLLINS
Pam/ ALUMINUM CAP MARKED
1-11, LOCATED AT THE
I SOUTHEAST CORNER OF
I MULBERRY STREET AND
LOOMIS AVENUE, AT THE
NORTHEAST CORNER OF A
4 CONCRETE TRAFFIC SIGNAL
r S�. BASE.
421 Sou th
/ Whitcomb
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— — — — — — ---- \
S. WH/ TCOMB A VENUE
FOR B ES ENGINEERING
2908 CHERLY STREET,
CLIENT.• CONOR FLANAGAN
PREPARED BY
KEVIN FORBES
PROJECT* 429 S WHITCOMB ST
DRAWN:
DATE
Ft. Collins, Colorado 80524
Tele: (970) 295-4874
FT COLUNS, CO
KEF
2-25-13
SHEET TTTLE.• DOS77NG GR4DING
PROJECT
DWG
FUu saMcF DONM DR4MM AA0 DESM
G ffvS7RUCR/RK, Fat MGDVS MW & MUMMAL HMMM
& DRAINAGE PLAN
13-1720
1720-EX
the provision of perimet. , silt fencing and a vehicle trackh.b control mat if
necessary.
Both the garage addition and carriage house will be constructed with a finished
floor elevation 18 inches above the corresponding base flood elevation (BFE) as
defined by the City of Fort Collins Flood Plain maps.
It is my conclusion that with proper construction practice and observance to the set
finish floor elevation, no adverse affects to the site or to the surrounding
properties are anticipated from the proposed improvement of this site.
Sincerely, o�P�O R o9!s�F
"65
Kevin Forbes, P.E. #3 • •.,�!(�
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FuRBES ENGINEERINu
Full Service Civil & Structural Engineering
February 25, 2013
Glen Schlueter
City of Fort Collins
Stormwater Engineering
700 Wood Street
Fort Collins, CO 80521
RE: Grading & Drainage Certification Letter for site improvements at
429 So Whitcomb St.
Fort Collins, CO 80521
Mr. Schlueter,
This letter and attached exhibits are to serve as a drainage certification for the
above referenced single family residential property. The property is located at the
Southeast corner of South Whitcomb and West Mulberry. The home was
originally built in approximately 1910 and presently has one single family
residence and a detached garage/outbuilding on the property (see attached existing
grading plan). The surrounding neighborhood is a mix of small business and
single family residential lots.
Proposed site improvements include an 828 square foot garage addition to the
existing home along with a 572 square foot carriage house. Site improvements
will also include 1143 square feet of concrete to be used for drives and walks.
The spot elevations and contours for both the existing and proposed grading &
drainage plans are based on survey data provided by Edmonds Land Surveying,
Inc. dated May 18, 2012.
Historic storm water runoff presently is directed towards the street gutter systems
of both Whitcomb (front yard) and Mulberry (south side yard). This will be
maintained with the proposed improvements using roof gutters and downspouts to
direct the storm water runoff towards the south and east and into the street gutter
system (see attached proposed grading plan). Any necessary erosion control
measures will be provided at the time of construction including, but not limited to,