HomeMy WebLinkAboutSite Certifications - 10/27/2009NORTHERN
ENGINEERING
September 14, 2009
ADDRESS: PHONE: 970.221.4158
200 S. College Ave. Suite 100 Northern
E N
Fort Collins, CO80524 FAX: 970.221.4159 orthernEngineering.com
Mr. Jay Barber
Stormwater Utilities
City of Fort Collins
700 Wood Street
Fort Collins, Colorado 80522-0580
RE: Mason Pawn m
Grading/Drainage Certification
Jay, 07�FvjGG�
This letter is in regards to Mason Pawn — Lot 1 of the Kel-Mar Strip Subdivision, and
particularly to the site grading and drainage certification. This letter is on behalf of the
developer/owner —.John Mason.
Regarding the concrete curbed channel; we shot elevations on the new portions of the
pan, and have included those elevations, as well as the as built grade for that concrete pan
extension shown in the attached exhibit. It is slightly flatter than the original design but is
steeper than the existing pan section (2.7% new, 1.6% existing). The riprap at the end of
the channel is in place. Essentially, the channel was installed per the intent of the design.
We also looked at the water quality pond and outlet works along the north side of the
building. The weir and orifice plate are installed per the approved design. The
owner/developer extended a berm along the north side of the "pond" to allow for
ponding, also allowing for runoff from the west to get into the pond. Again, this pond
should perform, providing a water quality mechanism for stormwater runoff.
Please call if you have any questions.
rely
Roger A Curtiss, P.E.
Project ManagerNice
UTILITY PLANS FOR
MASON PAWN
LOT 1 OF KEL-MAR STRIP SUBDIVISION LOCATED IN THE SOUTHWEST QUARTER OF
SECTION 12, TOWNSHIP 6 NORTH RANGE 69 WEST OF THE 6th P.M., CITY OF FORT
COLLINS, COUNTY OF LARIMER, STATE OF COLORADO
FEBRUARY 2009
RIM
I
ri
1
Z11VVICINITY MAP
SCALE: 1" = 2000'
CONTACT INFORMATION
PROJECT TEAM
OWNER/APPLICANT CONTRACTOR
M. Poem
rn CeHIUIMIioo, I .
J. Mew
Jeff&wpldt
3761 SMasho St
12N S College Ave
Fan Collins, Colorado 80525
Port Collme, Caloledo 80524
(970)282.72%
(970)212-1171
ENGINEER/SURVEY
Northern EngineWMB ServicaA Inc.
NORTHERN
Bodc-RI
ENGINEERING
200 S College Ave
Peel Coax, Calonde 80524
(9T0)WA158
GENERAL NOTES:
Getmnl ConaVuOtlon Note W1 Olmugh 18, 20 MmuOh 39, and 42 Mmugh 40 v lieled In Append E-1 aIOW
Larimor County Unhan Ana Saa1 Slandnds (LCUASS) shall apply and ho mlawed WNM pmlerl
INDEMNIFICATION STATEMENT:
These Plvm hero b roNaWb by the Cly vl Fqt CMllne
m, .—e P, an
The;Z daw net 1. l WonoBPlly by
me reYfvoM departman4 INe City EndnWr, a the city or
Fart Cdllns for o Ivy and aaraeclnaW or the adwiallana
FortNarmwe, Me mIW dose not imply Mot camtilies of
items an Me door we Ib nnol auantiilw ravubed. The
nwL. mdI nor be Pan.w.d rw any wa.an .. aacWtahPe
or rMPndw nWMelbeNy by Me City PI FM Colin. Iw
eeiu nand WanIILIn r time Moen Mel may be .eadr.a
eunng the ce "aden Phvn.
CERTIFICATION STATEMENT
I ban a1Rm that Men
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ELJ
S ORNN MMINOIE
MM El£V.. 5OM.IV
2A• RCP (W) INVERT - 501
24 RCP (E) INVERT - =.Is'
or EKISTNC STORMUNE
STORM MANHOLE
RIM ELEV. - 502e.46'
te• CMP (N) INVERT - SOM.2T
O
0
15' UTIUTY EASEMENT BY SEPARATE
DOCUMENT AUDI EASTERN MT
REOEPTKKN N0.
NBPIMVE _ 1- _ L
11II t MOOD w�U. .W �.
1 \ _ \ \ • I I EIOSIMC 2P�RLP
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d A R ELEV. - =7 02 '
4
I OF AS E C EDGE:
Cf ASPMAIT
1 STORY BRICK I WOOD
GARAGE
LOT KELMAR STRIP
OBOE S COLLEGE AVENUC
FINISH FLOOR EI.EV, - 501 SAW
,
I /
NSTALLATI(M OF WV
OIR AND PAR
TEAR NORTH END OF
:KISTING BERM
,' UTILITY EASEMENT BY
EPARATE DOCUMENT
tcC MON NO.
'.5- OF ADMTIGNAL ROW BY
SEPARATE DOCUMENT
NECEPTON NO.
'.x Bob, TO BE
COMPACTED SUFFICIENT TO
ULOW FENCE POST
;DNSTRucnoN
M SY2 CLASS FBI
D50 - 2'
THICKNESS - Ir
RIPRAP To BE
PACED UP THE
BANK TO BE LEVEL
MTh TOP OP FES
Is rxlsnac CURSED cNANNfL. /-•Gres — -
- I, - -
- - -
107 R \ • Ri
1
WOLCURV EE
6
CHANNEL \
l /
.518„AK-
GB I9. Cf.CV . blO A
EgST R EIEV - Sn].T
OMTHASGRADED SERUM
of THIS AREA
A FOR WATER
QUALITY AND SHALL mED
WNITH OUAUTY WEIR PER OE
ON THIS SHEET - SEE NOR 7
SCALE:
® NORTH
]0
0 ]0 a, 90 1-,
INFEET )
I MM . ]0 K
Is•02"d' WATER
oUAUTY PLATE SEE
p' DETALL THIS SHEET
Uri
eT
2'
SLAT
L SLUAA IN CONCRETE
N FRONT M
PLATE
T
2- ]• 7 If GIficaaa
HOLES O 4' 0.0
R-ROWS
0.
HOLES FGR re
EXPAN ION BOLTS
g' BREAK IN WALL EMBEDDED 2• INTO i• MM. MICA
BEHIND PLATE CONCRETE WALL O VANI2ED STEEL
Td' L 12. O.C. MIN, PLATE
MADE AT r
ly}} VLLn FlB07M OTTM OP WALL'
OF PLATE AND D INVERT
L BDROY OF OPAL ELEVARDN
JLABI• FRONT F
KAT IN FRONT OF
PULE
r
1
WATER QUALITY WEIR DETAIL WATER QUALITY PLATE DETAIL
N...-- N. .
CONCRETE SHALL BE 3500 PS O 28 DAYS
CONSTRUCTION NOTES:
1. RIPRAP SHALL BE PLACED IN ACCORDANCE
MTH CITY OF FORT CONS DETAILS
1 TOPOGRAPHY SHOW ON THE RAN IS
ED BASON TOPOGRAPHIC SURVEY BY
NORTHERN ENGINEERING SEANCES - DATED
n-o5-oe.
1 HEIGHT OF CURB ON SOUTH SIDE OF THE
CURBED CHANNEL TO BE MAXWI r. TM
OF GIRB ON THE SOUTH SIDE SHAUL BE
LOWER THAN EXISTING GRADE AT THE
PROKIRTY LINE
A. MAXIMUM ALLOWABLE SLOPE FR SOUTH
PROPERTY UK IS 4:1.
S HEIGHT OF CURB ON NORTH SIDE OF ME
CURSED CHANNEL TO BE I'.
B. WATER OUAUTY POND SHALL BE AESUIIT
AT END OF CONSTitUCTION AND CERTnE0
BY PROFESSIONAL ENGINEER PRIM TO
ISSUANCE OF CERTIFICATE OF OCCUPANCY.
LEGEND:
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CROSS-SECTION A -A
SCALE 1' - 5'
City of Port Collins, Colorado
UTILITY PLAN APPROVAL
APPR°VEO:
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