HomeMy WebLinkAboutSite Certifications - 06/13/2014I S 4 Rej C24*x C;.de_
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(Date)
( For Commercial or Multi -family Please list any applicable
Fort Collins
COMMERCIAL, MULTI -FAMILY AND SUBDIVISION
CERTIFICATION FORM & CHECKLIST
(Overall Site Drainage)
(Project Name)
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Please fill in all applicable items in this Certification Form fo ommercial Multi -Family and
Overall Single Family sites. A copy of the approved grading plan must be submitted with the as -
built grading plan. (It is preferred to have the as-built'elevations written in red next to the
approved elevations) f
Use "OK" for items checked or actual numbers for items verified/surveyed in the field.
Use "N/A" for items that are not applicable to -the site,that is;being certified.
Please provide an As -Built Redlined or Mylar drawing showing the following:
I,
A. Detention, Drainage Facilities, and Common Open Spaces
1. Pond Certification
Provide Topographic Records,(grading certification with as —built spot elevations) and
Volume Verification.Calculations. Show both the proposed and as -built elevations on
the same plan sheet.,
QK % Provide'Pond`Cross-Sections and Spot Elevations (especially @ Pond Embankment and
.Pond Flow Line)
0Y — Positive Fall;to Pan (if applicable)
General Pond Grading including all Side -Slopes
invert Elevation
— Forebay Construction and Elevation
— Spillway Weir (Location, Elevation, Height, Opening Width)
Fort Collins
Q!(,— Placement and size of riprap or alternative permanent erosion control measures
Q1, — Orifice Plate and/or Water Quality Outlet Structure Installation
Water Quality Capture Volume (Volume Required, Volume Provided and Water
F Surface Elevation)
OIL, — Berm and Embankment Compaction Level
NA_ — Subsurface Media for Water Quality Ponds and Swales
2. Swales
44
N�-
�TT
NA
N�
— Location (are they within easement?) >'
— Dimension and Cross -Section Verification
— Longitudinal Slopes and Side -Slopes
^1 /
— Spot Elevations
— Permanent Erosion Control Measures (drop structures, riprap, lining)
— Tie-in to Storm. Lines, Pans, Curbs, or other appurtenances
— Required.. Minimum Freeboard, Provided Freeboard
NA
—;' /Landscaping Infringement on Flow Line?
3. Pipes,
n
04 — J ; Size and Type
Slopes (As -Built and comparison to 0.4% Minimum) �j�,o�� G�
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N-. — Pipe Capacity Calculations (if slopes are significantly altered from design)
014- — Invert Elevations
N� — Installation and Backfill
1)
Fort Collins
OK — Cover
NA — Encasement and Clearance from other nearby utility lines
NA — Joints Type and construction
ra �
1
Y \
4. Concrete Pan Channels
`
f
�
—
Size
l
NAr
Slope
N —
Cross Section
l
Thickness
H —
Elevations '.��,'i'
✓- `' 1
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5. Inlets
•Size and Type
�,.
Size of Opening (or name of Standard Detail used)
N —
"Grate Elevation
INA -
Invert Elevation
NA—
Box Size
1
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Fort Collins
6. Street"Cross-Pans
NA- — Size
U
NAr — Type
NA- — Grade
Elevations
ok
— Cross -Sectional Depth
\
NA-
Tie-in to Curb and Gutter
/�
7.
Culverts
0k-
Size
�
N
— Type
Invert Elevation's
Headwalls or Wing Walls
8.
Sub:-Drains,�`.��
Size`v��
`T.ype'(Perforated/Solid)
NA
— .% Cover
— Backfill
Geo-Textile Liners
— Clean -Outs
Fort of
F6Collins
9. Curb Cuts
NPR _. Size
NA — Tie-in to Swale, Pipe or other appurtenances
10. Common Open Spaces
0 Overall grading contours of open spaces
OK Spot elevations adjacent to private lots (property corners)
B. Grading certification
1. Certification of Grade Elevations:
0 Minimum Opening Elevations
M Top of Foundation Elevations
OIL Comparison to 100-year Water S ervice" Elevations
M -Comparison to,Freeboard-Elevatio'ns and Base Floodplain Elevations — BFE
2. Verification of site grading:'
Engineer to evaluate site grading compliance with the approved grading plan.
e As-built'elevations/are to be redlined onto the approved grading plan sheet
showing theas-built spot elevations next to the design spot elevations so
compliancecan be verified and documented.
614. — Sediment Basins f; /X
NA —Water quality ponds/Sand
NAAA
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D.
09-
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Fort Collins
C. Certification of Erosion Control Measures:
1. Permanent BMP Measures:
— Permanent Vegetation (no more than 6" bare spots and weeds under control)
— Riprap or alternative permanent erosion material
— Riprap Bedding
— Cut -Off Walls or Channel Drop Structures Cross -Sections j4 C yst-
Filter/Bio Retention,Construction�and,liners
— Permanent Netting Mats or Blankets
— Mulching and Seeding v"
Post -Construction Site Cleanup:'./' 1
— Construction Debris Clean `Up On-part"Iar debris affecting the drainage)
— Smoothing of Ruts in all Construction Areas
►1� — Reseeding of all Areas Affected by Construction Activities
(Usually enforced by the City's Erosion Control Inspector but the engineer
Certifying the site needs to notify the contractor if areas are not seeded)
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Fort Collins
E. Statement of Compliance:
This certification is signed and stamped and by signing this form the Engineer(s) attests
that they have inspected the site and to the best of their knowledge the as -built conditions of
the drainage facilities are as described in the above form and in the As -Built plans enclosed.
Failure to properly disclose all known information could result in the rejection of this
certification and prevent the release of any and all Stormwater Utility permit`holds,on Building
Permits and/or Certificates of Occupancy within this development.
F. Signature and Stamp by a Colorado Registered Professional, Engineer. �T
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Engineer's contact information:' \ \,
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(Name) (Company Name)
(Email address) \(Company Address)
(Telephone number)
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PE STAMP
Construction verification photos
For
Toy Shed Storage
Gravel Sediment Pit
Fort Collins, Colorado 80524
May 21, 2014
Prepared by:
Forbes Engineering
2908 Cherly Street
Fort Collins, CO 80524
Office: (970) 295-4874
Cell: (970) 232-6014
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