CHECKLIST FOR CULVERT DESIGN

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Record Drawing Minimum Requirements Checklist
Record (As-Built) drawings must be submitted to SEMSWA for all Stormwater Public
Improvements as part of the Probationary Acceptance packet.
Yes
No
N/A
Design Requirements
I. GENERAL SUBMITTAL GUIDELINES
A. Drawing submittal includes an original blackline reproduction suitable for
scanning
B. Drawing submittal includes electronic copy on CD. The electronic copy
should include both a PDF version of the as-built drawings and the
appropriate CAD files and associated reference and data files. The
CAD files for the electronic copy shall be in a form that is compatible
with the most current version of AutoCAD, including *.dwg and/or *.dxf.
Additionally AutoCAD drawings must be submitted in original
coordinates (such as ground) as well as State Plane NAD83 Colorado
(Central) US feet horizontal and NAVD 88 vertical
C. Record drawings contain field surveyed information of sufficient detail to
allow SEMSWA to verify that the location (horizontal and vertical)
D. Record drawings contain materials of the constructed facilities which
conform to the approved construction documents
E. Record Drawings include Statements of Substantial Compliance by the
responsible Professional Engineer
F. Record Drawings include Statements of Substantial Compliance by both
the responsible Professional Land Surveyor responsible for the as-built
survey information
G. Professional Land Surveyor responsible for the as-built survey
information
II. STORM COLLECTION AND CONVEYANCE
A. Manholes, Inlets, Junction Chambers and other Miscellaneous
Structures
1. Type of structure (standard manhole, box base manhole, Type R
Inlet, etc…)
2. Location of center of structure, or corners of structure if structure is
not circular
3. Elevation of top of structure
4. Size, material, and flowline elevations of all incoming and outgoing
pipes
B. Storm Sewers
1. Pipe Length
2. Constructed flowline slope
3. Pipe shape and size
SEMSWA Stormwater Management Manual Page 1
Record Drawing Minimum Requirements Checklist
Record (As-Built) drawings must be submitted to SEMSWA for all Stormwater Public
Improvements as part of the Probationary Acceptance packet.
Yes
No
N/A
Design Requirements
4. Ground surface elevations along the centerline of pipe with
elevations at the ends of the pipe and at all intermediate grade
breaks
5. Flowline elevations at ends of pipe and flared end sections
C. Conveyance Swales
1. Cross sections of ground surface showing flowlines and toes and
tops of slope at the upstream and downstream ends of the channel
and at all breaks in the flowline grade and at a maximum interval of
25’
2. Top elevation and dimensions of all channel lining materials
(riprap, concrete, etc…)
3. Flowline elevations at the end points, breaks in grade and at a 25’
maximum interval along the length of the channel
4. Location, elevations and dimensions of all drop structures
III. DETENTION/WATER QUALITY FACILITY
A. General
1. Ground surface elevations at toes and tops of slopes at a
maximum interval of 25’
2. Ground surface elevations along the centerline of embankments;
at the end points, at a maximum interval of 25’ and at all grade
breaks.
3. Cross sections of the ground surface in the pond.
(a) surveyed perpendicular to the major axis of the pond,
(b) extends 20’ past the 100-year water surface in the pond or to an
elevation which is 2’ above the 100-year water surface
(c) located at the upstream and downstream ends of the pond and
at intermediate locations at a maximum interval of 25’
B. Outlet Structure
1. Flowline elevations at the upstream and downstream ends of
structure and at all intermediate locations where there are
abrupt changes in the flowline
2. Structure dimensions
3. Dimensions and elevations needed to define weir crests and top
of structure
SEMSWA Stormwater Management Manual Page 2
Record Drawing Minimum Requirements Checklist
Record (As-Built) drawings must be submitted to SEMSWA for all Stormwater Public
Improvements as part of the Probationary Acceptance packet.
Yes
No
N/A
Design Requirements
B. Outlet Structure (cont.)
4. Elevation of orifices in orifice plate
5. Dimension, number, and spacing of orifices in orifice plate
6.
6. Dimensions of structure, including wall thicknesses
C. Trickle Channels
1. Typical Section
2. Flowline elevations at the end points, grade breaks, and at a 25’
maximum interval along the length of the channel
D. Overflow Spillways
1. Width of spillway crest (measured in the direction of flow)
2. Length of spillway crest (measured perpendicular to the direction
of flow)
3. Elevation of crest at both ends and at any intermediate grade breaks
4. Elevation of top of embankment at ends of spillway.
Micropools, Forebays, BMPs/Enhancements, and Other Miscellaneous
E.
Structures
1. Dimensions, slopes and elevations as necessary to define the
improvement and verify that it has been constructed in accordance
with the approved construction documents
2. Elevations for Micropool floor and permanent pool
3. Finished floor elevation of structures
4. 100-yr and 100-yr WSEL when improvement encroach into the
floodplain
SEMSWA Stormwater Management Manual Page 3
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