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POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST (City of BIsmarck)

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PCSMP Checklist
SM-05
Engineering Department
City of Bismarck
221 N. 5
th
Street
P.O. Box 5503
Bismarck, ND 58506
701-355-1505
For Office Use Only:
Date Received:
TRAKiT #:
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 1 of 10 January 1, 2018
Project Information:
Site Address:
________________________________________________________________________
Description of Work:
________________________________________________________________________
Lot & Block Number:
Subdivision:
General Submittal Materials
Standard Application Materials
Complete
Comment
Stormwater Management Permit Application (SM-01)
Yes
Stormwater Permit Fee
Yes
Approved Mandatory Stormwater Scoping Sheet (SM-04)
Yes
Stormwater Management Plan & Exhibits
See Required Items Below
Yes
Design Waivers or Variances (if Acceptable)
Yes N/A
Optional Materials for Conditional Approval (Required for
Expedited Review Process)
Complete
Comment
Construction Plans & Basis of Design Report
Yes N/A
Geotechnical Report
Yes N/A
Access & Drainage Easements
Yes N/A
Operation and Maintenance Manuals
Yes N/A
Summary of Site Cover
Pervious Area
(square feet)
Impervious Area
(square feet)
Total Area
(square feet)
Existing Conditions
Post-Construction Conditions
Change in Area (+/-)
Stormwater Management Plan Narrative
Provide a SWMP Narrative consistent with the requirements of the SWDSM and the approved Mandatory Stormwater Scoping Sheet. Attach this
checklist to the SWMP Narrative that matches the outline as defined in Section 3.4.2 of the SWDSM
Item
Description
Yes
N/A
Page
1.0
Site & Applicant Information 3.4.2 of the SWDSM
1.0A
Applicant, Contact Name, Address, Phone, & Email
1.0B
Site Address and Subdivision Lot & Block as Applicable
1.1
Brief Description of Project
1.2
Project Size and Impervious Surface Created
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 2 of 10 January 1, 2018
Stormwater Management Plan Narrative
Provide a SWMP Narrative consistent with the requirements of the SWDSM and the approved Mandatory Stormwater Scoping Sheet. Attach this
checklist to the SWMP Narrative that matches the outline as defined in Section 3.4.2 of the SWDSM
Item
Description
Yes
N/A
Page
2.0
Recommendations for the Project Area 3.4.2 of the SWDSM
2.0A
Summary Table by Lot & Block of allowable Post-Construction
Pervious CN and % Impervious for future Expedited SWMP or Basis of
Design Reports.
2.0B
Summary Table of the Existing Conditions and Post-Construction peak
flow and volumes at the Point(s) of Analysis for all storm events
required by Table 4-1 of the SWDSM.
2.1
Required Easements for Post-Construction Stormwater BMPs
2.2
Inter-Lot Drainage Requirements to be Addressed by Future Grading
Plans and CSMP.
2.3
Post-Construction Stormwater BMPs Required to be Implemented by
Future Development
2.4
Additional Project Specific Recommendations as Necessary
3.0
Project Stormwater Management Summary 3.4.2 of the SWDSM
The SWMP shall include a brief description of the following items.
3.1
Description of the Point(s) of Analysis
3.2
Description of the Point(s) of Discharge
3.3
Description of existing channels, pipes, culverts, or other stormwater
features.
3.4
Description of existing wetlands on and adjacent to the project including
the source (i.e. field delineation, NWI, LWI, etc.)
3.5
Identify FEMA FIRM map and location.
3.6
Report the NRCS soil types for the project area. Note if NRCS soils are
listed as Hydric Soils.
3.7
Description of how Project proposes to manage post-construction
stormwater runoff consistent with the requirements of the SWDSM.
4.0
Hydrologic Analysis Summary 3.4.2 of the SWDSM
The SWMP shall include a description of each catchment by Point of Analysis
that includes a brief description of the existing and post-construction conditions
of each catchment. The design engineer can utilize sub-catchments to define
specific areas within the overall Point of Analysis.
4.1
Description of Existing Zoning & Land-use
4.2
Summary Table for the Existing Conditions Catchment by Point of
Analysis that Includes:
1. Tributary Area (both onsite and off-site run-on);
2. Impervious Coverage Area;
3. Impervious Coverage Curve Number;
4. Pervious Coverage Area;
5. Pervious Coverage Curve Number; and
6. Time of Concentration.
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 3 of 10 January 1, 2018
Stormwater Management Plan Narrative
Provide a SWMP Narrative consistent with the requirements of the SWDSM and the approved Mandatory Stormwater Scoping Sheet. Attach this
checklist to the SWMP Narrative that matches the outline as defined in Section 3.4.2 of the SWDSM
Item
Description
Yes
N/A
Page
4.3
Post-Construction Zoning & Land-use
4.4
Summary Table for the Post-Construction Catchment by Point of
Analysis that Includes:
1. Tributary Area (both on- site and off-site run-on);
2. Impervious Coverage Area;
3. Impervious Coverage CN;
4. Pervious Coverage Area;
5. Pervious Coverage Curve Number; and
6. Time of Concentration.
4.0A
Included as an appendix to the SWMP modeling results for the existing
and post-construction condition hydrographs to each Point of Discharge
for the storm events listed Table 4-1 of the SWSDM.
4.5
The SWMP hydrologic analysis and reporting shall account for and
consider the following:
1. The project shall safely pass the 100-year 24-hour event without
impacting of inundating any homes, structures or other
buildings.
2. If the off-site contributing areas are greater than 50-percent of
the catchment total, provide a description of the impact of future
development in the off-site watershed on the proposed post-
construction stormwater BMPs and make any applicable
recommendations.
5.0
Post-Construction Stormwater Management BMPs Summary
The SWMP shall include documentation that the Project meets the Performance
Requirements, Design Standards and Analysis Method of the SWDSM for A)
Post-Construction Peak Flow Compliance (Section 4.0) B) Post-Construction
Water Quality Compliance (Section 5.0) and C) Post-Construction Drainage
and Conveyance.
5.1
Post-Construction Peak Flow Compliance BMP (Section 4 of the
SWDSM)
5.1.1
Engineered Outlets
The SWMP shall include a summary of the proposed engineered outlet
structure in a table that reports:
1. Outlet configuration including size and inverts;
2. Outlet culvert discharge velocity and depth for all storm events
required by Table 4-1 of the SWDSM;
3. Calculated water surface elevation for all storm events required
by Table 4-1 of the SWDSM;
4. Maximum available storage in the proposed basin (to
emergency spillway or overflow elevation); and
5. Reference to where the Stage/Storage/Discharge report is
contained in the SWMP.
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 4 of 10 January 1, 2018
Stormwater Management Plan Narrative
Provide a SWMP Narrative consistent with the requirements of the SWDSM and the approved Mandatory Stormwater Scoping Sheet. Attach this
checklist to the SWMP Narrative that matches the outline as defined in Section 3.4.2 of the SWDSM
Item
Description
Yes
N/A
Page
5.1.2
Emergency Spillway and Uncontrolled Overflows
The SWMP shall include the hydrologic and hydraulic summary
demonstrating that the proposed emergency spillway\overflow satisfies
the following conditions:
1. Capable of passing the post-construction 100-year 24-hour
event without overtopping the detention basin berm during a
clogged outlet structure condition;
2. Properly armored to resist the erosive forces during the post-
construction 100-year 24-hour event; and
3. Will not be utilized during the normal function of the detention
basin.
5.0A
Included as an appendix to the SWMP modeling results for the inflow
and outflow hydrographs for the post-construction condition for each of
the storm events listed Table 4-1 of the SWDSM.
5.2
Post-Construction Water Quality Compliance BMP (Section 5 of the
SWDSM)
5.2.1
Wet Detention Basins
The SWMP shall include a summary table that reports:
1. Required Water Quality Volume (Vwqreq);
2. Proposed Water Quality Volume in the form of a Stage-Storage
relationship;
3. Calculated drawdown time; and
4. Reference to where the Stage/Storage/Discharge report is
contained in the SWMP.
5.2.2
Dry Detention Basins (w/Extended Detention)
The SWMP shall include a summary table that reports:
1. Required Extended Detention Water Quality Volume (Vwqreq);
2. Proposed Extended Detention Water Quality Volume in the
form of a Stage-Storage relationship;
3. Calculated drawdown time; and
4. Reference to where the Stage/Storage/Discharge report is
contained in the SWMP.
5.2.3
Infiltration
The SWMP shall include a summary table that reports:
1. Required Water Quality Volume (Vwqreq);
2. Proposed Water Quality Volume in the form of a Stage-Storage
relationship;
3. Calculated infiltration time; and
4. Reference to where the Stage/Storage/Discharge report is
contained in the SWMP.
5.2.4
If applicable, Alternative BMP Method analysis and reporting
requirements consistent with Section 5.2.2 of the SWDSM.
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 5 of 10 January 1, 2018
Stormwater Management Plan Narrative
Provide a SWMP Narrative consistent with the requirements of the SWDSM and the approved Mandatory Stormwater Scoping Sheet. Attach this
checklist to the SWMP Narrative that matches the outline as defined in Section 3.4.2 of the SWDSM
Item
Description
Yes
N/A
Page
5.0B
Included as an attachment to the SWMP modeling results for post-
construction water quality BMPs demonstrating compliance with Table
5-1 of the SWSDM.
5.3
Post-Construction Drainage & Conveyance BMPs (Section 6 of the
SWDSM)
5.3.1
Streets
Demonstrate compliance with Table 6-1 and Table 6-2 if the SWDSM
Summary table listing:
1. Street Classification;
2. Critical Design Grade;
3. Calculated Maximum Street Flow Depth; and
4. Maximum Encroachment.
5.3.2
Storm Sewer
Brief summary of the storm sewer system.
Detailed design calculations meeting the requirements of Section 6.0 of
the SWDSM can be included in future Basis of Design Report.
5.3.3
Culverts
Brief summary of required culverts.
Detailed design calculations meeting the requirements of Section 6.0 of
the SWDSM can be included in future Basis of Design Report.
5.3.4
Open Channels
When engineered open channels are utilized as a post-construction BMP
include the following information:
1. The size and shape of open channels shall be based on flow
quantities calculated using the hydrologic methods set forth in
Section 4.3.1 of the SWDSM.
2. Post-Construction flows and the maximum Froude number for
each design event.
3. Calculations reporting the velocity and shear stress to support
the channel lining material selection.
4. Graphical profile of the channel longitudinal section reporting
the design slope and 5-year 24-hour and 100-year 24-hour
storm hydraulic grade lines.
5.4
Identification of Parties Responsible for the Operation and Maintenance
of the Post-Construction Stormwater Structural and Non-Structural
BMPs.
Note: O&M Manuals for each approved post-construction BMP shall be
required as a condition of approval of the PCSMP.
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 6 of 10 January 1, 2018
Stormwater Management Plan Narrative
Provide a SWMP Narrative consistent with the requirements of the SWDSM and the approved Mandatory Stormwater Scoping Sheet. Attach this
checklist to the SWMP Narrative that matches the outline as defined in Section 3.4.2 of the SWDSM
Item
Description
Yes
N/A
Page
6.0
Construction Schedule & Phasing
6.1
Narrative of proposed project construction phases and the necessary
future submittals and approvals as required by the SWDSM. For
example, grading project, water sewer project, final site development,
etc.
6.0A
Summary table indicating future PCSMP application materials and
approximate timing. Examples include Basis of Design Report,
Construction Plans, Geotechnical Report, and Certification Report
7.0
Engineer’s Statement of Compliance & Seal
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 7 of 10 January 1, 2018
Stormwater Management Plan – Required Exhibits
All Stormwater Management Plans are to include the exhibits listed below. Additional exhibits may be required for complex sites or
multiple phase projects.
General Requirements:
1. Paper Size
2. Minimum = 11x17
3. Maximum = 24x36
4. All Exhibits must have a unique name and number
5. All Exhibits are to be labeled “For Regulatory Review Only – Not Approved for Construction”
Item
Description
Yes
N/A
Page
1
Exhibit 1.0 – Cover Sheet & Location Map
(if more than one sheet is required use 1.0, 1.1, 1.2, etc.)
A
Name of Project or Name of the Plat
B
Owner with Contact Information
C
Applicant
D
Engineer
E
Site Location by Address and/or PLSS
F
SWMP Exhibits Sheet Index by Number & Title
G
Location Map – GIS data is sufficient for accuracy. The purpose of the
location map is to demonstrate where the proposed project fits in the
existing Public Storm Sewer System.
1. North Arrow
2. Scale
3. Project Site Highlighted
4. Streets
5. Adjacent Parcels
6. Existing Offsite Stormwater Facilities
7. Regional Stormwater Facilities (If Used for the Project)
8. Stormwater Master Plan Study Boundary
9. Point(s) of Analysis
2
Exhibit 2.0 – Existing Conditions Site Plan
(if more than one sheet is required use 2.0, 2.1, 2.2, etc.)
A
North Arrow and Bar Scale
B
Existing topography at a minimum of 1-foot interval. For sites with
grades steeper than 10%, the existing topography can be shown at 2-foot
contour intervals.
C
Identify the Point(s) of Analysis and delineate each corresponding
drainage area.
D
Identify the Point(s) of Discharge to the Public Storm Sewer System and
delineate the sub-catchment area boundary(s) including any upstream
areas that flow on to the project site.
E
Time of concentration path for each catchment or sub-catchment.
F
Property boundaries and street ROW
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 8 of 10 January 1, 2018
Stormwater Management Plan – Required Exhibits
All Stormwater Management Plans are to include the exhibits listed below. Additional exhibits may be required for complex sites or
multiple phase projects.
General Requirements:
1. Paper Size
2. Minimum = 11x17
3. Maximum = 24x36
4. All Exhibits must have a unique name and number
5. All Exhibits are to be labeled “For Regulatory Review Only – Not Approved for Construction”
Item
Description
Yes
N/A
Page
G
Existing underground public utilities
H
Existing above ground public utilities
I
Existing impervious ground cover
J
Existing pervious ground cover
K
Location of wetlands
L
FEMA Floodplains and Floodways
M
NRCS Soils Boundaries
N
Legend identifying all layers or features.
O
Notes Identifying:
1. Source and Date of Topography
2. Source of NRCS Soil Boundaries
3. Total Site Impervious and Pervious Area
4. Point(s) of Analysis Total Drainage Area
Exhibit 3.0 – Post-Construction Site Plan
(if more than one sheet is required use 3.0, 3.1, 3.2, etc.)
A
North Arrow and Bar Scale
B
Post-construction grading at a minimum of 1-foot interval.
For sites with grades steeper than 10% the existing topography can be
shown at 2-foot contour intervals.
C
Identify the Point(s) of Analysis
D
Identify the Point(s) of Discharge to the Public Storm Sewer System and
delineate the corresponding Catchment area including any upstream
areas that flow on to the project site.
E
All catchments and sub-catchments labeled with identifiers that match
the hydrologic modeling results.
F
Post-construction impervious ground cover
G
Post-construction pervious ground cover
H
Post-construction BMPs
I
Post-construction time of concentration paths for each catchment or sub-
catchment
J
Legend identifying all layers or features.
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 9 of 10 January 1, 2018
Stormwater Management Plan – Required Exhibits
All Stormwater Management Plans are to include the exhibits listed below. Additional exhibits may be required for complex sites or
multiple phase projects.
General Requirements:
1. Paper Size
2. Minimum = 11x17
3. Maximum = 24x36
4. All Exhibits must have a unique name and number
5. All Exhibits are to be labeled “For Regulatory Review Only – Not Approved for Construction”
Item
Description
Yes
N/A
Page
Exhibit 4.0 – Post-Construction BMP Details
(if more than one sheet required use 4.0, 4.1, 4.2, etc.)
A
Peak Flow and/or Water Quality Basin Typical Section and Outlet
Structure Detail with:
1. Outlet structure including sizes of orifices, weirs and culverts;
2. Invert elevations for all outlet orifices, weirs and culverts;
3. Invert elevation for emergency spillway or overflow structure;
4. Elevation of the top of embankment or basin structure;
5. Calculated water surface elevation for all storm events required
by Table 4-1 of the SWDSM;
6. Post-Construction Outlet Protection, and
7. If applicable, the elevation of the nearest adjacent finished floor
or other critical elements.
Design Engineer
All PCSMP application materials; SWMP, Construction Plans, Basis of Design Report, Geotechnical Report and
Certification Report are to be submitted under the seal and signature of a Professional Engineer registered in the State of
North Dakota.
Have all items included in this PCSMP application been
sealed and signed by a Professional Engineer registered in
the State of North Dakota?
Yes
No
Page
Submittal Copies:
1 PDF Copy Uploaded to TRAKiT
Application Fee Paid
Comments:
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
PCSMP Checklist
SM-05
POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST
(Complete all applicable items)
Page 10 of 10 January 1, 2018
Required Summary Tables:
(Note: The Design Engineer may reproduce the following tables electronically and attach to this checklist as a summary.)
Project Hydrologic Modeling Summary – Existing Conditions
Storm Event
Peak Flow (cfs) by Point of Analysis
Point 1
Point 2
Point 3
2-year 24-hour
5-year 24-hour
10-year 24-hour
100-year 24-hour
Project Hydrologic Modeling Summary – Existing Conditions
Storm Event
Total Volume (acre-feet) by Point of Analysis
Point 1
Point 2
Point 3
2-year 24-hour
5-year 24-hour
10-year 24-hour
100-year 24-hour
Project Hydrologic Modeling Summary – Post-Construction Conditions
Storm Event
Peak Flow (cfs) by Point of Analysis
Point 1
Point 2
Point 3
2-year 24-hour
5-year 24-hour
10-year 24-hour
100-year 24-hour
Project Hydrologic Modeling Summary – Post-Construction Conditions
Storm Event
Total Volume (acre-feet) by Point of Analysis
Point 1
Point 2
Point 3
2-year 24-hour
5-year 24-hour
10-year 24-hour
100-year 24-hour
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POST-CONSTRUCTION STORMWATER MANAGEMENT PERMIT CHECKLIST (City of BIsmarck)

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Completed 2 August 2020

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