05 Appendix I-III.pdf
PDF 17 MB Posted
- Attached to
- Poc903130C - Nutrient Reduction Wetland Project
- Solicitation number
- 24-01
- Issued by
- Pocahontas County, Iowa
About this file
This document is an appendix to a state and local contract opportunity issued by the state of Iowa for the construction of a nutrient reduction wetland in Pocahontas County. The scope of work includes selective clearing, excavation, grading, tile and outlet structures, articulating concrete block, riprap placement, slope stabilization, and seeding. The project involves approximately 24,285 cubic yards of earthwork, 2,502 linear feet of tile installation, 3,865 feet of tile removal, 2,000 square feet of articulating concrete block, various ancillary structures, and 8.0 acres of seeding. The estimated construction cost range for this project is $400,000 to $450,000 with a construction start date of November 1, 2024 and buffer seeding to be completed by December 15, 2024.
The document does not provide details on pricing terms, set asides, incumbents, funding requirements and sources, or other salient information beyond the project scope and timeline.
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STATE OF IOWA
DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP
DIVISION OF SOIL CONSERVATION AND WATER QUALITY
Poc903130C NUTRIENT REDUCTION
WETLAND PROJECT
CONSTRUCTION CONTRACT
BID NO. 24-01
SECTION 30, TOWNSHIP 90 NORTH, RANGE 31 WEST
POCAHONTAS COUNTY, IOWA
PREPARED FOR: IOWA DEPARTMENT OF AGRICULTURE & LAND STEWARDSHIP
DIVISION OF SOIL CONSERVATION AND WATER QUALITY
WALLACE STATE OFFICE BUILDING
502 EAST 9TH STREET
DES MOINES, IOWA 50319
515-281-4246
PREPARED BY: DUCKS UNLIMITED
209 EUGENE ST
RADCLIFFE, IA 50230
832-704-3286
March 2023 http://www.google.com/imgres?q=usda+logo&hl=en&sa=X&biw=1350&bih=875&tbm=isch&prmd=imvns&tbnid=P91feuSheeb84M:&imgrefurl=http://fundbook.org/usda-makes-308-million-available-for-disaster-assistance/&docid=dSEnCvj2ivAhLM&imgurl=http://fundbook.org/wordpress/wp-content/uploads/2012/01/USDA_logo-300x206.png&w=300&h=206&ei=JYUFUNX8EMWe2wWk4fm5BQ&zoom=1 i
TABLE OF CONTENTS
GENERAL REQUIREMENTS Page(s) DOCUMENT AA Notice-to-Bidders AA 1 DOCUMENT BB Instruction–to-Bidders BB 1-5 DOCUMENT CC Proposal and Schedule of Prices CC 1-5 DOCUMENT DD Construction Contract DD 1-2 DOCUMENT EE Proposal Guarantee (Bid Bond) EE 1 DOCUMENT FF General Conditions FF 1-27 DOCUMENT GG Special Conditions GG 1-3 DOCUMENT NN Performance Bond NN 1-3
CONSTRUCTION SPECIFICATIONS
CS-08 8-1 to 8-3
IA-01 1-1 to 1-3 IA-05 5-1 to 5-3 IA-06 6-1 to 6-4
IA-09 9-1 to 9-5 IA-21 21-1 to 21-4 IA-23 23-1 to 23-5 IA-26 26-1 to 26-2 IA-31 31-1 to 31-7 IA-46 46-1 to 46-4 IA-51 51-1 to 51-6 IA-61 61-1 to 61-4
IA-95
Site Preparation Pollution Control Seeding and Mulching for Protective Cover Mobilization & Demobilization Drain Tile Investigation and Removal Excavation Earthfill Topsoiling Concrete Tile Drains for Land Drainage Corrugated Metal Pipe Conduits Loose Rock Riprap Geotextile 95-1 to 95-5
PLANS
Cover Sheet 001 Specifications, Quantities, & Notes 002 Topography ^ Existing Conditions 051 Site Plan 101 Structure, Inlet, Berm, & Riprap Plan 201 Structure, Berm, & Wetland Profiles 202 Clay Core & 10-inch Tile Profiles & Riprap Toe 203 Water Control Structure Plan 204 Tile Plan 205 Water Control Structure Details 301 CMP WCS Details 302 Agri Drain WCS Details 303 Articulating Concrete Block Details 304 Seeding Plan 401 ii
APPENDIX I – ADDENDA & BID TAB *(ADDED AFTER BIDDING)
Addenda, if applicable * Pre-Bid Meeting Minutes * Pre-Bid Meeting Attendance List * Updated Plan Holders List * Bid Tab *
APPENDIX II – CONSTRUCTION ADMINISTRATION FORMS
DOCUMENT LL Notice-of-Award LL 1 DOCUMENT MM Notice-to-Proceed MM 1 DOCUMENT JJ Construction Progress Schedule JJ 1-2 DOCUMENT SS Application & Certificate for Payment SS 1-2 DOCUMENT HH Change Order Request HH 1-2 DOCUMENT II Construction Contract Amendment II 1-3 DOCUMENT QQ Iowa Sales & Use Tax Form QQ 1
APPENDIX III – DESIGN CALCULATIONS
APPENDIX I
ADDENDA & BID TAB
[Page intentionally left blank to serve as a placeholder for any addenda and for the
Bid Tab which will be included after the bidding process]
APPENDIX II
CONSTRUCTION & ADMINISTRATION FORMS
Poc903130C Nutrient Reduction Wetland Project DOCUMENT LL Bid No. 24-01 NOTICE-OF-AWARD
LL-1
March 8, 2024
Contractor name and address
Delivery via email: Contractor Email
RE: NOTICE-OF-AWARD – Poc903130C Nutrient Reduction Wetland Project, Contract 24-01
Dear Poc903130C, This is to notify you that the Division of Soil Conservation and Water Quality has determined Poc903130C is the successful bidder for the Poc903130C Nutrient Reduction Wetland Project.
Award is being made for the base bid of Poc903130C.
In accordance with Item #9 of the Instructions to Bidders, Document BB, you have fourteen (14) calendar days from the date of receipt of this notice to obtain the Performance Bond (Document NN), submit your Construction Progress Schedule (Document JJ) for review, and execute the Contract (Document DD). In addition, the Division must be provided with a Certificate of Insurance pursuant to the General Conditions, Insurance and Related Provisions (Document FF, Part 6-01).
Please note that Iowa Code Section 91C.7, requires that all construction contractors awarded a contract to perform work for the state or an agency of the state must be registered with the Iowa Division of Labor. The Division of Soil Conservation and Water Quality cannot execute a contract with your firm unless you provide proof of this registration. Be sure to fill in the Division of Labor registration number blank on the Contract (Document DD).
Enclosed are the Contract (Document DD), Construction Progress Schedule form (Document JJ), and the Performance Bond (Document NN). Please complete, sign and return scanned electronic copies along with completed Performance Bond. In addition, we must have the Certificate of Insurance pursuant to the General Conditions and/or Special Conditions.
Congratulations on being the successful bidder. We look forward to working with your company on this project. If you have any questions, please contact Tracy Bruun, (515) 344-6279.
Sincerely, Jake Hansen, Chief Water Resources Bureau Division of Soil Conservation and Water Quality
JH/tab Enclosures
CC:
Poc903130C Nutrient Reduction Wetland Project DOCUMENT MM Bid No. 24-01 NOTICE- TO-PROCEED
MM-1
March 8, 2024
Contractor name and address
Delivery via email: Contractor Email
RE: NOTICE-TO-PROCEED – Poc903130C Nutrient Reduction Wetland Project, Contract 24-01
Dear, The Division of Soil Conservation and Water Quality received the signed construction Contract (Document DD), the completed Performance Bond (Document NN), and the Certificate of Insurance from your company. These documents were found to be in order and the Division executed this contract with ______________ dated __________. A scanned copy of the executed Contract and Performance Bond are enclosed.
The Division has accepted the Construction Progress Schedule (Document JJ) included here, with a Construction Start Date of ________________________ . A Preconstruction Conference, as required in Item 13 of the Instructions to Bidders (Document BB), must be held within seven (7) days prior to the Construction Start Date established in the Construction Progress Schedule, or earlier if mutually agreed. No work may commence on site prior to the Preconstruction Conference. If the Construction Start Date requires adjustment, that needs to be communicated to the Engineer and Division in a timely manner so as to facilitate scheduling of the Preconstruction Conference.
In accordance with the Contract, ___________________________ must commence work under this contract for the _____________________ Nutrient Reduction Wetland Project on or before the Construction Start Date scheduled in the Construction Progress Schedule, but not before the Preconstruction Conference. You have until November 01, 2024 to complete all of the work except for seeding, and until December 15, 2024 to complete the seeding.
Also attached is a scanned copy of the Iowa Construction Sales Tax Exempt Certificate and Authorization Letter for this project. Pursuant to Iowa Code Section 423.2(80), this allows you to purchase materials tax free for use on this project. Please read the information provided in the authorization letter. You are authorized with this Notice-to-Proceed to purchase necessary materials for this project and request reimbursement for those items that are stored prior to the Construction Start Date.
If you have any questions, please contact Tracy Bruun, (515) 344-6279.
Sincerely, Jake Hansen, Chief Water Resources Bureau Division of Soil Conservation and Water Quality
JH/tab Attachments
CC:
Poc903130C Nutrient Reduction Wetland Project DOCUMENT JJ Bid No. 24-01 CONSTRUCTION PROGRESS SCHEDULE
JJ-1
DIVISION OF SOIL CONSERVATION AND WATER QUALITY
CONSTRUCTION PROGRESS SCHEDULE
Project ID: Poc903130C Date: _______________________________
Contractor: ___________________________________________________________________________________
Contract End Dates:
All Construction Work Except Seeding: November 01, 2024
Seeding: December 15, 2024
Scheduled Dates:
Anticipated Construction Start Date:
Preconstruction Conference Date Range*:
*Preconstruction Conference must be held prior to Construction Start Date, by no more than seven (7) days
Estimated Completion Date of All Work Except Seeding:
Final Walkthrough should be held prior to Contract End Date for all construction work except seeding
Major Construction Work Item(s) Order of Work Estimated Duration of Work
(Items to be established/grouped by Division on an individual project basis)
Dates established in this schedule may be adjusted as described in Document FF, Paragraph 3-21.
Poc903130C Nutrient Reduction Wetland Project DOCUMENT JJ Bid No. 24-01 CONSTRUCTION PROGRESS SCHEDULE
JJ-2
FOR THE CONTRACTOR
(Company Representative)
(Date)
(Name of Company)
(Address of Company)
(City, State, Zip code
FOR THE DIVISION
Mike Bourland, Water Resources Bureau Division of Soil Conservation and Water Quality
Accepted
Adjustment Requested
If adjustment is requested, describe below:
END OF DOCUMENT JJ
Poc903130C Nutrient Reduction Wetland Project DOCUMENT SS Bid No. 24-01 APPLICATION AND CERTIFICATE FOR PAYMENT
SS-1
Poc903130C Nutrient Reduction Wetland Project DOCUMENT SS Bid No. 24-01 APPLICATION AND CERTIFICATE FOR PAYMENT
SS-2
Poc903130C Nutrient Reduction Wetland Project DOCUMENT HH Bid No. 24-01 CHANGE ORDER REQUEST
HH-1
CHANGE ORDER REQUEST
Change Order Request No.
Project ID: Poc903130C Date:
Name of Project: Poc903130C
Location of Project: Pocahontas County
Name of Contractor:
Architect/Engineer: Ducks Unlimited
Contract Plan and Detail Reference:
Change Order Request Drawing No. and Date:
Contract Specification Reference:
Description of Change:
BREAKDOWN OF CONTRACT COST:
Original Project Contract Amount: $
Approved Change Orders No. thru : $
Pending Recommended Change Order Requests Nos. : $
This Change Order Request: $
Resulting Total Recommended Amount: $
Poc903130C Nutrient Reduction Wetland Project DOCUMENT HH Bid No. 24-01 CHANGE ORDER REQUEST
HH-2
Reason for Contract Change:
Change Requested by:
(Signature) (Date)
CONTRACTOR APPROVAL
By:
(Company) (Signature)
(Address) (Date)
IDALS PROJECT REPRESENTATIVE RECOMMENDATIONS
Concur Recommend Rejection (Attach Explanation)
IDALS Project Representative:
(Signature) (Date)
DIVISION OF SOIL CONSERVATION AND WATER QUALITY AUTHORIZATION
Change Order required due to:
Immediate authorization to proceed granted: Yes No
APPROVED: DENIED:
Susan Kozak, Director Susan Kozak, Director Division of Soil Conservation and Water Quality Division of Soil Conservation and Water Quality Iowa Department of Agriculture Iowa Department of Agriculture and Land Stewardship and Land Stewardship
(Date) (Date)
END OF DOCUMENT HH
Poc903130C Nutrient Reduction Wetland Project DOCUMENT II Bid No. 24-01 CONSTRUCTION CONTRACT AMENDMENT
II-1
State of Iowa Iowa Department of Agriculture and Land Stewardship
Poc903130C Nutrient Reduction Wetland Project Construction Contract Amendment
THIS AMENDMENT, made this ______ day of ___________________________, 2023, by and between the State of Iowa, acting through:
Iowa Department of Agriculture and Land Stewardship
Division of Soil Conservation and Water Quality hereinafter called the DIVISION, and
(Name of Company)
(Address)
(City, State, Zip) hereinafter called the CONTRACTOR.
WITNESSETH: That the DIVISION and the CONTRACTOR mutually agree to amend the agreement made the _____day of __________, 20_____, for the Pocahontas County Nutrient Reduction Wetland Project (Poc903130C – Bid No. 24-01) in this Amendment Number _________ as described below:
Description of Amendment:
Contract Plan Sheet(s) and Detail Reference(s):
Amendment No. _____ Drawing No. and Date:
Contract Specification Reference(s):
Reason for Revision of Contract Completion Date(s):
Original Contract Completion Date for All Work Except Seeding: November 01, 2024 Original Contract Completion Date for Seeding: December 15, 2024 Current Completion Date for All Work Except Seeding:
Current Completion Date for Seeding:
Revised Completion Date for All Work Except Seeding, This Amendment:
Revised Completion Date for Seeding, This Amendment:
Poc903130C Nutrient Reduction Wetland Project DOCUMENT II Bid No. 24-01 CONSTRUCTION CONTRACT AMENDMENT
II-2
BREAKDOWN OF AMENDMENT CONTRACT COST BY BID ITEM:
Item # Description Adjustment Quantity Unit Cost
Total Cost Adjustment
TOTAL $
Original Project Contract Amount: $ 0.00 Approved Contract Amendments No. ____ through ____: $ 0.00 Pending Recommended Change Order Requests No. ____ through ____: $ 0.00 Approved Change Order Requests No. ____ through ____: $ 0.00 This Amendment Request: $ 0.00 Resulting Total Recommended Amount: $ 0.00
IN WITNESS WHEREOF, the parties hereto have executed this Amendment, in the day and year first above mentioned.
FOR THE DIVISION FOR THE CONTRACTOR
Grant D. Menke, Deputy Secretary Iowa Department of Agriculture and Land Stewardship
(Company Representative)
(Date) (Date)
(Name of Company)
(Address of Company)
(City, State, Zip Code)
CONSENT FROM SURETY
Seal if by a corporation
(Surety Representative)
(Name of Surety)
END OF DOCUMENT II
Poc903130C Nutrient Reduction Wetland Project DOCUMENT QQ Bid No. 24-01 SALES TAX EXEMPTION CERTIFICATE
QQ-1
IOWA
Department of Revenue www.state.ia.us/tax
Designated Exempt Entity Iowa Construction Sales Tax Exemption Certificate
This document may be completed by a designated exempt entity and given to their contractor and/or subcontractor along with an authorization letter. Seller: Keep this certificate in your files. Contractor/Exempt Entity: Keep a copy of this certificate for your records. Do not send this to the Department of Revenue
Designated Exempt Entity Division of Soil Conservation and Water Quality Iowa Department of Agriculture and Land Stewardship Address 1 502 East 9th Street Address 2
City Des Moines
State
IA
Zip Code 50319
Construction Project Name Poc903130C Nutrient Reduction Wetland Project Construction Project Number (if used) Job No. 24-01
General Contractor or Subcontractor Name Sample Address 1 123 Construction Ave Address 2 City Diggerville
State
IA
Zip Code 55555
Description of contract/subcontract (please print/type clearly)
Construction of Nutrient Reduction Wetland.
The named contractor may purchase building materials used in the contract, exempt from sales tax. This exemption does NOT apply to materials, equipment and supplies consumed by the contractor or subcontractor.
Designated Exempt Entity Authorized Agent ._____________________________________ Date: _____________
Authorization Letter From Division of Soil Conservation and Water Quality - Agriculture and Land Stewardship
Pursuant to Iowa Code Sections: 422.42 (16) & (17), and 422.47 (5), you are authorized to purchase construction materials tax free for the contract specified above.
The exemption certificate (or a copy of the certificate) may be provided to the suppliers of your construction materials and will authorize them to sell you the materials exempt from Iowa sales tax and any applicable local option sales tax and school infrastructure local option sales tax. Complete information on qualifying materials can be found at www.state.ia.us/tax, the Department of Revenue (IDR) website.
It is your responsibility to have records identifying the materials purchased and verifying they were used on this contract. Any materials purchased tax-free and not used on the construction project are subject to sales and applicable local option taxes. Should this occur, the tax must be paid directly by you to IDR in the same calendar quarter the project is completed. E-mail the department at: idrf@idrf.state.ia.us if you have questions on this requirement.
Contractors should be aware that use of the certificate to claim exemption from tax for items not used on this project or that do not qualify for exemption could result in civil or criminal penalties.
31-013 (12/10/02)
END OF DOCUMENT QQ
APPENDIX III
DESIGN CALCULATIONS
SECTION 1 - HYDROCAD REPORT
SECTION 2 – HEC-RAS ANALYSIS
SECTION 3 – FEMA FLOODMAP AT ADJACENT ROAD
SECTION 4 – NOAA RAINFALL DATA
SECTION 5 – STREAMSTATS REPORT
SECTION 6 – NRCS SOIL DATA
SECTION 7 – 10-INCH TILE & AGRIDRAIN CALCULATIONS
SECTION 8 – 5-INCH LATERAL TILE CALCULATIONS
SECTION 9 – LATERAL EFFECT CALCULATIONS
SECTION 10 – SEDIMENT ACCUMULATION CALCULATIONS
SECTION 11 – CTS GEOTECHNICAL REPORT
SECTION 12 – IDALS RIPRAP TOE RECOMMENDATION
SECTION 1
HYDROCAD REPORT
2S
Rainfall into Wetland
5S
Watershed to Creek South of Moline
9P
Moline Wetland
Routing Diagram for IA-340-3 - HydroCAD Wetland Model Prepared by Ducks Unlimited
HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Subcat Reach Pond Link
IA-340-3 - HydroCAD Wetland Model Prepared by Ducks Unlimited
Page 2HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Rainfall Events Listing (selected events)
Event# Event Name
Storm Type Curve Mode Duration (hours)
B/B Depth (inches)
AMC
1 25-Year NOAA 24-hr A Default 24.00 1 5.54 2 2 100-Year NOAA 24-hr A Default 24.00 1 7.61 2
Page 3HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Area Listing (all nodes)
Area (acres)
CN Description (subcatchment-numbers)
1,177.600 68 Pasture/grassland/range, Poor, HSG A (5S)
49.100 78 Row crops, straight row, Good, HSG B (2S)
1,226.700 68 TOTAL AREA
Page 4HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Soil Listing (all nodes)
Area (acres)
Soil Group
Subcatchment Numbers
1,177.600 HSG A 5S
49.100 HSG B 2S
0.000 HSG C
0.000 HSG D
0.000 Other
1,226.700 TOTAL AREA
Page 5HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Ground Covers (all nodes)
HSG-A
(acres)
HSG-B
(acres)
HSG-C
(acres)
HSG-D
(acres)
Other (acres)
Total (acres)
Ground Cover
Subcatchmen Numbers
1,177.600 0.000 0.000 0.000 0.000 1,177.600 Pasture/grassland/range, Poor 5
0.000 49.100 0.000 0.000 0.000 49.100 Row crops, straight row, Good 2
1,177.600 49.100 0.000 0.000 0.000 1,226.700 TOTAL AREA
Page 6HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Pipe Listing (all nodes)
Line# Node Number
In-Invert (feet)
Out-Invert (feet)
Length (feet)
Slope (ft/ft) n Width (inches)
Diam/Height (inches)
Inside-Fill (inches)
1 9P 1,205.00 1,205.00 39.0 0.0000 0.021 0.0 18.0 0.0 2 9P 1,205.00 1,205.00 15.0 0.0000 0.020 0.0 18.0 0.0
Page 7HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Notes Listing (all nodes)
Line# Node Number
Notes
1 5S CN adjusted to correlate inflow volumetric flowrate with inflow volumetric flowrate for a 100-year event from StreamStats Report.
2 Based on existing 60" CMP culvert at adjacent road, upstream of grade stabilization structure, and FEMA flood map indicating 100-year flood event does not overtop road, it is likely peak flow for 100-year event down ditch/creek will be 240 cfs.
Accordingly, modeling diagram and peak elevations for certain events are likely higher than what will actually be experienced on site.
3 9P Modeling was performed assuming the wetland at FSL at the beggining of the rain event, 1208.0'.
NOAA 24-hr A 25-Year Rainfall=5.54"IA-340-3 - HydroCAD Wetland Model
Page 8HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Time span=5.00-60.00 hrs, dt=0.05 hrs, 1101 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Runoff Area=49.100 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 2S: Rainfall into Wetland Flow Length=300' Slope=0.0030 '/' Tc=15.7 min CN=78 Runoff=188.76 cfs 12.994 af
Runoff Area=1,177.600 ac 0.00% Impervious Runoff Depth=2.27"Subcatchment 5S: Watershed to Flow Length=12,017' Slope=0.0037 '/' Tc=537.5 min CN=68 Runoff=278.31 cfs 223.053 af
Peak Elev=1,209.19' Storage=17.348 af Inflow=280.76 cfs 236.047 afPond 9P: Moline Wetland Primary=7.33 cfs 9.451 af Secondary=272.57 cfs 226.595 af Outflow=279.91 cfs 236.046 af
Total Runoff Area = 1,226.700 ac Runoff Volume = 236.047 af Average Runoff Depth = 2.31" 100.00% Pervious = 1,226.700 ac 0.00% Impervious = 0.000 ac
Page 9HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Summary for Subcatchment 2S: Rainfall into Wetland
Runoff = 188.76 cfs @ 12.25 hrs, Volume= 12.994 af, Depth= 3.18" Routed to Pond 9P : Moline Wetland
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-60.00 hrs, dt= 0.05 hrs NOAA 24-hr A 25-Year Rainfall=5.54"
Area (ac) CN Description
49.100 78 Row crops, straight row, Good, HSG B
49.100 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs)
15.7 300 0.0030 0.32 Sheet Flow, Cultivated: Residue<=20% n= 0.060 P2= 7.61"
Subcatchment 2S: Rainfall into Wetland
Runoff
Hydrograph
Time (hours) 605856545250484644424038363432302826242220181614121086
F lo w cf s)
NOAA 24-hr A 25-Year Rainfall=5.54" Runoff Area=49.100 ac
Runoff Volume=12.994 af Runoff Depth=3.18"
Flow Length=300' Slope=0.0030 '/'
Tc=15.7 min
CN=78
188.76 cfs
Page 10HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: Rainfall into Wetland
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
5.00 0.24 0.00 0.00
5.50 0.27 0.00 0.00
6.00 0.30 0.00 0.00
6.50 0.33 0.00 0.00
7.00 0.37 0.00 0.00
7.50 0.42 0.00 0.00
8.00 0.47 0.00 0.00
8.50 0.53 0.00 0.00
9.00 0.59 0.00 0.01
9.50 0.66 0.00 0.31
10.00 0.76 0.01 0.93
10.50 0.88 0.03 1.86
11.00 1.06 0.07 4.18
11.50 1.38 0.18 10.98
12.00 2.58 0.84 57.00
12.50 4.16 2.02 84.12
13.00 4.48 2.28 26.64
13.50 4.66 2.43 14.73
14.00 4.78 2.53 9.83
14.50 4.88 2.61 8.04
15.00 4.95 2.67 6.30
15.50 5.01 2.72 5.11
16.00 5.07 2.77 4.68
16.50 5.12 2.81 4.27
17.00 5.17 2.85 3.85
17.50 5.21 2.89 3.42
18.00 5.24 2.92 3.00
18.50 5.27 2.95 2.70
19.00 5.30 2.97 2.59
19.50 5.33 3.00 2.49
20.00 5.36 3.02 2.39
20.50 5.39 3.04 2.28
21.00 5.41 3.07 2.18
21.50 5.44 3.09 2.06
22.00 5.46 3.11 1.96
22.50 5.48 3.13 1.85
23.00 5.50 3.14 1.74
23.50 5.52 3.16 1.63
24.00 5.54 3.18 1.55
24.50 5.54 3.18 0.06
25.00 5.54 3.18 0.00
25.50 5.54 3.18 0.00
26.00 5.54 3.18 0.00
26.50 5.54 3.18 0.00
27.00 5.54 3.18 0.00
27.50 5.54 3.18 0.00
28.00 5.54 3.18 0.00
28.50 5.54 3.18 0.00
29.00 5.54 3.18 0.00
29.50 5.54 3.18 0.00
30.00 5.54 3.18 0.00
30.50 5.54 3.18 0.00
31.00 5.54 3.18 0.00
31.50 5.54 3.18 0.00
32.00 5.54 3.18 0.00
32.50 5.54 3.18 0.00
33.00 5.54 3.18 0.00
33.50 5.54 3.18 0.00
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
34.00 5.54 3.18 0.00
34.50 5.54 3.18 0.00
35.00 5.54 3.18 0.00
35.50 5.54 3.18 0.00
36.00 5.54 3.18 0.00
36.50 5.54 3.18 0.00
37.00 5.54 3.18 0.00
37.50 5.54 3.18 0.00
38.00 5.54 3.18 0.00
38.50 5.54 3.18 0.00
39.00 5.54 3.18 0.00
39.50 5.54 3.18 0.00
40.00 5.54 3.18 0.00
40.50 5.54 3.18 0.00
41.00 5.54 3.18 0.00
41.50 5.54 3.18 0.00
42.00 5.54 3.18 0.00
42.50 5.54 3.18 0.00
43.00 5.54 3.18 0.00
43.50 5.54 3.18 0.00
44.00 5.54 3.18 0.00
44.50 5.54 3.18 0.00
45.00 5.54 3.18 0.00
45.50 5.54 3.18 0.00
46.00 5.54 3.18 0.00
46.50 5.54 3.18 0.00
47.00 5.54 3.18 0.00
47.50 5.54 3.18 0.00
48.00 5.54 3.18 0.00
48.50 5.54 3.18 0.00
49.00 5.54 3.18 0.00
49.50 5.54 3.18 0.00
50.00 5.54 3.18 0.00
50.50 5.54 3.18 0.00
51.00 5.54 3.18 0.00
51.50 5.54 3.18 0.00
52.00 5.54 3.18 0.00
52.50 5.54 3.18 0.00
53.00 5.54 3.18 0.00
53.50 5.54 3.18 0.00
54.00 5.54 3.18 0.00
54.50 5.54 3.18 0.00
55.00 5.54 3.18 0.00
55.50 5.54 3.18 0.00
56.00 5.54 3.18 0.00
56.50 5.54 3.18 0.00
57.00 5.54 3.18 0.00
57.50 5.54 3.18 0.00
58.00 5.54 3.18 0.00
58.50 5.54 3.18 0.00
59.00 5.54 3.18 0.00
59.50 5.54 3.18 0.00
60.00 5.54 3.18 0.00
Page 11HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Summary for Subcatchment 5S: Watershed to Creek South of Moline
CN adjusted to correlate inflow volumetric flowrate with inflow volumetric flowrate for a 100-year event from StreamStats Report.
Based on existing 60" CMP culvert at adjacent road, upstream of grade stabilization structure, and FEMA flood map indicating 100-year flood event does not overtop road, it is likely peak flow for 100-year event down ditch/creek will be 240 cfs. Accordingly, modeling diagram and peak elevations for certain events are likely higher than what will actually be experienced on site.
Runoff = 278.31 cfs @ 19.69 hrs, Volume= 223.053 af, Depth= 2.27" Routed to Pond 9P : Moline Wetland
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-60.00 hrs, dt= 0.05 hrs NOAA 24-hr A 25-Year Rainfall=5.54"
Area (ac) CN Description 1,177.600 68 Pasture/grassland/range, Poor, HSG A 1,177.600 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs)
537.5 12,017 0.0037 0.37 Lag/CN Method, Subcatchment 5S: Watershed to Creek South of Moline
Runoff
Hydrograph
Time (hours) 605856545250484644424038363432302826242220181614121086
F lo w cf s)
NOAA 24-hr A 25-Year Rainfall=5.54"
Runoff Area=1,177.600 ac Runoff Volume=223.053 af
Runoff Depth=2.27" Flow Length=12,017'
Slope=0.0037 '/' Tc=537.5 min
CN=68
278.31 cfs
Page 12HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: Watershed to Creek South of Moline
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
5.00 0.24 0.00 0.00
5.50 0.27 0.00 0.00
6.00 0.30 0.00 0.00
6.50 0.33 0.00 0.00
7.00 0.37 0.00 0.00
7.50 0.42 0.00 0.00
8.00 0.47 0.00 0.00
8.50 0.53 0.00 0.00
9.00 0.59 0.00 0.00
9.50 0.66 0.00 0.00
10.00 0.76 0.00 0.00
10.50 0.88 0.00 0.00
11.00 1.06 0.00 0.00
11.50 1.38 0.04 0.00
12.00 2.58 0.43 0.13
12.50 4.16 1.31 1.29
13.00 4.48 1.52 3.86
13.50 4.66 1.64 10.50
14.00 4.78 1.73 22.56
14.50 4.88 1.79 39.94
15.00 4.95 1.85 61.91
15.50 5.01 1.89 89.81
16.00 5.07 1.93 123.44
16.50 5.12 1.97 160.50
17.00 5.17 2.00 195.87
17.50 5.21 2.03 226.14
18.00 5.24 2.05 249.89
18.50 5.27 2.08 266.70
19.00 5.30 2.10 273.91
19.50 5.33 2.12 277.36
20.00 5.36 2.14 274.34
20.50 5.39 2.16 266.13
21.00 5.41 2.18 255.09
21.50 5.44 2.20 240.58
22.00 5.46 2.21 223.00
22.50 5.48 2.23 202.67
23.00 5.50 2.24 183.21
23.50 5.52 2.26 166.22
24.00 5.54 2.27 151.74
24.50 5.54 2.27 138.75
25.00 5.54 2.27 127.25
25.50 5.54 2.27 117.17
26.00 5.54 2.27 107.87
26.50 5.54 2.27 99.06
27.00 5.54 2.27 90.66
27.50 5.54 2.27 82.84
28.00 5.54 2.27 75.85
28.50 5.54 2.27 68.92
29.00 5.54 2.27 62.40
29.50 5.54 2.27 56.16
30.00 5.54 2.27 50.21
30.50 5.54 2.27 44.84
31.00 5.54 2.27 39.55
31.50 5.54 2.27 34.97
32.00 5.54 2.27 30.76
32.50 5.54 2.27 26.94
33.00 5.54 2.27 23.52
33.50 5.54 2.27 20.44
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
34.00 5.54 2.27 17.85
34.50 5.54 2.27 15.54
35.00 5.54 2.27 13.59
35.50 5.54 2.27 11.85
36.00 5.54 2.27 10.31
36.50 5.54 2.27 9.03
37.00 5.54 2.27 7.86
37.50 5.54 2.27 6.85
38.00 5.54 2.27 6.00
38.50 5.54 2.27 5.27
39.00 5.54 2.27 4.62
39.50 5.54 2.27 4.02
40.00 5.54 2.27 3.48
40.50 5.54 2.27 2.98
41.00 5.54 2.27 2.53
41.50 5.54 2.27 2.09
42.00 5.54 2.27 1.70
42.50 5.54 2.27 1.36
43.00 5.54 2.27 1.03
43.50 5.54 2.27 0.88
44.00 5.54 2.27 0.74
44.50 5.54 2.27 0.62
45.00 5.54 2.27 0.52
45.50 5.54 2.27 0.44
46.00 5.54 2.27 0.37
46.50 5.54 2.27 0.31
47.00 5.54 2.27 0.26
47.50 5.54 2.27 0.22
48.00 5.54 2.27 0.18
48.50 5.54 2.27 0.15
49.00 5.54 2.27 0.12
49.50 5.54 2.27 0.10
50.00 5.54 2.27 0.08
50.50 5.54 2.27 0.06
51.00 5.54 2.27 0.05
51.50 5.54 2.27 0.03
52.00 5.54 2.27 0.02
52.50 5.54 2.27 0.01
53.00 5.54 2.27 0.01
53.50 5.54 2.27 0.00
54.00 5.54 2.27 0.00
54.50 5.54 2.27 0.00
55.00 5.54 2.27 0.00
55.50 5.54 2.27 0.00
56.00 5.54 2.27 0.00
56.50 5.54 2.27 0.00
57.00 5.54 2.27 0.00
57.50 5.54 2.27 0.00
58.00 5.54 2.27 0.00
58.50 5.54 2.27 0.00
59.00 5.54 2.27 0.00
59.50 5.54 2.27 0.00
60.00 5.54 2.27 0.00
Page 13HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Summary for Pond 9P: Moline Wetland
Modeling was performed assuming the wetland at FSL at the beggining of the rain event, 1208.0'.
Inflow Area = 1,226.700 ac, 0.00% Impervious, Inflow Depth = 2.31" for 25-Year event Inflow = 280.76 cfs @ 19.69 hrs, Volume= 236.047 af Outflow = 279.91 cfs @ 19.78 hrs, Volume= 236.046 af, Atten= 0%, Lag= 5.2 min Primary = 7.33 cfs @ 19.78 hrs, Volume= 9.451 af Secondary = 272.57 cfs @ 19.78 hrs, Volume= 226.595 af
Routing by Stor-Ind method, Time Span= 5.00-60.00 hrs, dt= 0.05 hrs Starting Elev= 1,208.00' Surf.Area= 6.304 ac Storage= 9.565 af Peak Elev= 1,209.19' @ 19.78 hrs Surf.Area= 6.904 ac Storage= 17.348 af (7.783 af above start)
Plug-Flow detention time= 85.5 min calculated for 226.481 af (96% of inflow) Center-of-Mass det. time= 27.5 min ( 1,320.0 - 1,292.5 )
Volume Invert Avail.Storage Storage Description #1 1,205.00' 23.614 af Custom Stage Data (Prismatic) Listed below (Recalc)
Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet)
1,205.00 0.010 0.000 0.000 1,206.00 0.558 0.284 0.284 1,207.00 5.850 3.204 3.488 1,208.00 6.304 6.077 9.565 1,209.10 6.712 7.159 16.724 1,210.00 8.599 6.890 23.614
Device Routing Invert Outlet Devices #1 Primary 1,205.00' 18.0" Round CMP_Round 18" Outlet
L= 39.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 1,205.00' / 1,205.00' S= 0.0000 '/' Cc=
0.900 n= 0.021 Corrugated metal, Flow Area= 1.77 sf
#2 Device 1 1,208.00' 3.5' long 48" Riser Stoplogs 0 End Contraction(s) #3 Device 2 1,205.00' 18.0" Round CMP_Round 18" Inlet
L= 15.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 1,205.00' / 1,205.00' S= 0.0000 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 1.77 sf
#4 Secondary 1,208.00' 45' Spillway, C= 3.27 Offset (feet) -62.50 -22.50 22.50 62.50 Height (feet) 2.00 0.00 0.00 2.00
Primary OutFlow Max=7.33 cfs @ 19.78 hrs HW=1,209.19' (Free Discharge) 1=CMP_Round 18" Outlet (Passes 7.33 cfs of 12.00 cfs potential flow)
2=48" Riser Stoplogs (Passes 7.33 cfs of 14.89 cfs potential flow) 3=CMP_Round 18" Inlet (Inlet Controls 7.33 cfs @ 4.15 fps)
Secondary OutFlow Max=272.50 cfs @ 19.78 hrs HW=1,209.19' (Free Discharge) 4=45' Spillway (Weir Controls 272.50 cfs @ 2.47 fps)
Page 14HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Pond 9P: Moline Wetland
Inflow Outflow Primary Secondary
Hydrograph
Time (hours) 605856545250484644424038363432302826242220181614121086
F lo w cf s)
Inflow Area=1,226.700 ac Peak Elev=1,209.19'
Storage=17.348 af
280.76 cfs
279.91 cfs
7.33 cfs
272.57 cfs
Pond 9P: Moline Wetland
Total Primary Secondary
Stage-Discharge
Discharge (cfs) 700650600550500450400350300250200150100500
E le va ti o n fe et
1,210
1,209
1,208
1,207
1,206
1,205
CMP_Round 18" Outlet + CMP_Round 18" Inlet
48" Riser Stoplogs 45' Spillway
Page 15HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Pond 9P: Moline Wetland
Surface Storage
Stage-Area-Storage
Storage (acre-feet) 2220181614121086420
Surface/Horizontal/Wetted Area (acres) 876543210
E le va ti o n fe et
1,210
1,209
1,208
1,207
1,206
1,205
Starting Elevation
Custom Stage Data
Page 16HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Hydrograph for Pond 9P: Moline Wetland
Time (hours)
Inflow (cfs)
Storage (acre-feet)
Elevation (feet)
Outflow (cfs)
Primary (cfs)
Secondary (cfs)
5.00 0.00 9.565 1,208.00 0.00 0.00 0.00
6.00 0.00 9.565 1,208.00 0.00 0.00 0.00
7.00 0.00 9.565 1,208.00 0.00 0.00 0.00
8.00 0.00 9.565 1,208.00 0.00 0.00 0.00
9.00 0.01 9.565 1,208.00 0.00 0.00 0.00
10.00 0.93 9.591 1,208.00 0.15 0.01 0.14
11.00 4.18 9.726 1,208.03 0.92 0.07 0.86
12.00 57.13 10.745 1,208.19 13.61 0.92 12.68
13.00 30.50 12.492 1,208.46 56.67 3.55 53.12
14.00 32.39 11.555 1,208.31 30.68 2.01 28.67
15.00 68.21 12.364 1,208.44 52.76 3.33 49.44
16.00 128.12 13.917 1,208.68 107.30 5.53 101.77
17.00 199.71 15.590 1,208.93 182.27 6.48 175.79
18.00 252.88 16.722 1,209.10 243.12 7.04 236.07
19.00 276.51 17.238 1,209.18 273.34 7.28 266.06
20.00 276.72 17.327 1,209.19 278.65 7.32 271.33
21.00 257.26 17.048 1,209.15 262.07 7.20 254.87
22.00 224.96 16.532 1,209.07 232.38 6.95 225.43
23.00 184.96 15.816 1,208.96 193.77 6.60 187.17
24.00 153.29 15.145 1,208.86 160.55 6.24 154.31
25.00 127.25 14.555 1,208.77 133.78 5.91 127.87
26.00 107.87 14.070 1,208.70 113.30 5.62 107.68
27.00 90.66 13.623 1,208.63 95.98 5.34 90.64
28.00 75.85 13.205 1,208.57 80.64 4.86 75.78
29.00 62.40 12.813 1,208.51 67.01 4.14 62.87
30.00 50.21 12.430 1,208.45 54.72 3.44 51.28
31.00 39.55 12.064 1,208.39 44.00 2.81 41.19
32.00 30.76 11.719 1,208.34 34.75 2.25 32.50
33.00 23.52 11.405 1,208.29 27.11 1.78 25.33
34.00 17.85 11.127 1,208.25 20.95 1.40 19.55
35.00 13.59 10.887 1,208.21 16.19 1.09 15.10
36.00 10.31 10.685 1,208.18 12.59 0.86 11.73
37.00 7.86 10.517 1,208.15 9.70 0.67 9.04
38.00 6.00 10.371 1,208.13 7.63 0.53 7.10
39.00 4.62 10.250 1,208.11 5.92 0.41 5.51
40.00 3.48 10.150 1,208.09 4.67 0.33 4.35
41.00 2.53 10.053 1,208.08 3.65 0.26 3.39
42.00 1.70 9.965 1,208.06 2.70 0.19 2.51
43.00 1.03 9.889 1,208.05 1.89 0.13 1.75
44.00 0.74 9.824 1,208.04 1.48 0.10 1.37
45.00 0.52 9.767 1,208.03 1.15 0.08 1.07
46.00 0.37 9.720 1,208.02 0.88 0.06 0.82
47.00 0.26 9.682 1,208.02 0.67 0.05 0.62
48.00 0.18 9.652 1,208.01 0.50 0.04 0.46
49.00 0.12 9.629 1,208.01 0.36 0.03 0.34
50.00 0.08 9.611 1,208.01 0.26 0.02 0.25
51.00 0.05 9.598 1,208.01 0.19 0.01 0.17
52.00 0.02 9.588 1,208.00 0.13 0.01 0.12
53.00 0.01 9.580 1,208.00 0.09 0.01 0.08
54.00 0.00 9.575 1,208.00 0.05 0.00 0.05
55.00 0.00 9.571 1,208.00 0.03 0.00 0.03
56.00 0.00 9.569 1,208.00 0.02 0.00 0.02
57.00 0.00 9.567 1,208.00 0.01 0.00 0.01
58.00 0.00 9.566 1,208.00 0.01 0.00 0.01
59.00 0.00 9.566 1,208.00 0.01 0.00 0.00
60.00 0.00 9.566 1,208.00 0.00 0.00 0.00
Page 17HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Stage-Discharge for Pond 9P: Moline Wetland
Elevation (feet)
Discharge (cfs)
Primary (cfs)
Secondary (cfs)
1,205.00 0.00 0.00 0.00 1,205.05 0.00 0.00 0.00 1,205.10 0.00 0.00 0.00 1,205.15 0.00 0.00 0.00 1,205.20 0.00 0.00 0.00 1,205.25 0.00 0.00 0.00 1,205.30 0.00 0.00 0.00 1,205.35 0.00 0.00 0.00 1,205.40 0.00 0.00 0.00 1,205.45 0.00 0.00 0.00 1,205.50 0.00 0.00 0.00 1,205.55 0.00 0.00 0.00 1,205.60 0.00 0.00 0.00 1,205.65 0.00 0.00 0.00 1,205.70 0.00 0.00 0.00 1,205.75 0.00 0.00 0.00 1,205.80 0.00 0.00 0.00 1,205.85 0.00 0.00 0.00 1,205.90 0.00 0.00 0.00 1,205.95 0.00 0.00 0.00 1,206.00 0.00 0.00 0.00 1,206.05 0.00 0.00 0.00 1,206.10 0.00 0.00 0.00 1,206.15 0.00 0.00 0.00 1,206.20 0.00 0.00 0.00 1,206.25 0.00 0.00 0.00 1,206.30 0.00 0.00 0.00 1,206.35 0.00 0.00 0.00 1,206.40 0.00 0.00 0.00 1,206.45 0.00 0.00 0.00 1,206.50 0.00 0.00 0.00 1,206.55 0.00 0.00 0.00 1,206.60 0.00 0.00 0.00 1,206.65 0.00 0.00 0.00 1,206.70 0.00 0.00 0.00 1,206.75 0.00 0.00 0.00 1,206.80 0.00 0.00 0.00 1,206.85 0.00 0.00 0.00 1,206.90 0.00 0.00 0.00 1,206.95 0.00 0.00 0.00 1,207.00 0.00 0.00 0.00 1,207.05 0.00 0.00 0.00 1,207.10 0.00 0.00 0.00 1,207.15 0.00 0.00 0.00 1,207.20 0.00 0.00 0.00 1,207.25 0.00 0.00 0.00 1,207.30 0.00 0.00 0.00 1,207.35 0.00 0.00 0.00 1,207.40 0.00 0.00 0.00 1,207.45 0.00 0.00 0.00 1,207.50 0.00 0.00 0.00 1,207.55 0.00 0.00 0.00 1,207.60 0.00 0.00 0.00 1,207.65 0.00 0.00 0.00 1,207.70 0.00 0.00 0.00 1,207.75 0.00 0.00 0.00 1,207.80 0.00 0.00 0.00 1,207.85 0.00 0.00 0.00
Elevation (feet)
Discharge (cfs)
Primary (cfs)
Secondary (cfs)
1,207.90 0.00 0.00 0.00 1,207.95 0.00 0.00 0.00 1,208.00 0.00 0.00 0.00 1,208.05 1.80 0.13 1.67 1,208.10 5.18 0.36 4.82 1,208.15 9.67 0.66 9.00 1,208.20 15.12 1.02 14.10 1,208.25 21.46 1.43 20.03 1,208.30 28.64 1.88 26.76 1,208.35 36.63 2.37 34.26 1,208.40 45.42 2.90 42.52 1,208.45 54.98 3.45 51.53 1,208.50 65.32 4.05 61.27 1,208.55 76.43 4.67 71.76 1,208.60 88.18 5.20 82.98 1,208.65 100.35 5.42 94.94 1,208.70 113.25 5.62 107.63 1,208.75 126.88 5.82 121.06 1,208.80 141.25 6.01 135.24 1,208.85 156.36 6.19 150.17 1,208.90 172.22 6.37 165.84 1,208.95 188.82 6.55 182.28 1,209.00 206.19 6.72 199.47 1,209.05 224.31 6.88 217.43 1,209.10 243.21 7.05 236.16 1,209.15 262.88 7.20 255.67 1,209.20 283.32 7.36 275.97 1,209.25 304.56 7.51 297.05 1,209.30 326.58 7.66 318.93 1,209.35 349.41 7.80 341.60 1,209.40 373.04 7.95 365.09 1,209.45 397.48 8.09 389.39 1,209.50 422.74 8.23 414.51 1,209.55 448.82 8.36 440.45 1,209.60 475.73 8.50 467.23 1,209.65 503.48 8.63 494.85 1,209.70 532.07 8.76 523.31 1,209.75 561.51 8.89 552.62 1,209.80 591.80 9.01 582.79 1,209.85 622.96 9.14 613.82 1,209.90 654.99 9.26 645.73 1,209.95 687.89 9.38 678.51 1,210.00 721.67 9.50 712.17
Page 18HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Stage-Area-Storage for Pond 9P: Moline Wetland
Elevation (feet)
Surface (acres)
Storage (acre-feet)
1,205.00 0.010 0.000 1,205.05 0.037 0.001 1,205.10 0.065 0.004 1,205.15 0.092 0.008 1,205.20 0.120 0.013 1,205.25 0.147 0.020 1,205.30 0.174 0.028 1,205.35 0.202 0.037 1,205.40 0.229 0.048 1,205.45 0.257 0.060 1,205.50 0.284 0.074 1,205.55 0.311 0.088 1,205.60 0.339 0.105 1,205.65 0.366 0.122 1,205.70 0.394 0.141 1,205.75 0.421 0.162 1,205.80 0.448 0.183 1,205.85 0.476 0.206 1,205.90 0.503 0.231 1,205.95 0.531 0.257 1,206.00 0.558 0.284 1,206.05 0.823 0.319 1,206.10 1.087 0.366 1,206.15 1.352 0.427 1,206.20 1.616 0.501 1,206.25 1.881 0.589 1,206.30 2.146 0.690 1,206.35 2.410 0.803 1,206.40 2.675 0.931 1,206.45 2.939 1.071 1,206.50 3.204 1.225 1,206.55 3.469 1.391 1,206.60 3.733 1.571 1,206.65 3.998 1.765 1,206.70 4.262 1.971 1,206.75 4.527 2.191 1,206.80 4.792 2.424 1,206.85 5.056 2.670 1,206.90 5.321 2.929 1,206.95 5.585 3.202 1,207.00 5.850 3.488 1,207.05 5.873 3.781 1,207.10 5.895 4.075 1,207.15 5.918 4.371 1,207.20 5.941 4.667 1,207.25 5.964 4.965 1,207.30 5.986 5.263 1,207.35 6.009 5.563 1,207.40 6.032 5.864 1,207.45 6.054 6.166 1,207.50 6.077 6.470 1,207.55 6.100 6.774 1,207.60 6.122 7.080 1,207.65 6.145 7.386 1,207.70 6.168 7.694 1,207.75 6.191 8.003 1,207.80 6.213 8.313 1,207.85 6.236 8.625
Elevation (feet)
Surface (acres)
Storage (acre-feet)
1,207.90 6.259 8.937 1,207.95 6.281 9.250 1,208.00 6.304 9.565 1,208.05 6.323 9.881 1,208.10 6.341 10.197 1,208.15 6.360 10.515 1,208.20 6.378 10.833 1,208.25 6.397 11.153 1,208.30 6.415 11.473 1,208.35 6.434 11.794 1,208.40 6.452 12.116 1,208.45 6.471 12.439 1,208.50 6.489 12.763 1,208.55 6.508 13.088 1,208.60 6.527 13.414 1,208.65 6.545 13.741 1,208.70 6.564 14.069 1,208.75 6.582 14.397 1,208.80 6.601 14.727 1,208.85 6.619 15.057 1,208.90 6.638 15.389 1,208.95 6.656 15.721 1,209.00 6.675 16.054 1,209.05 6.693 16.389 1,209.10 6.712 16.724 1,209.15 6.817 17.062 1,209.20 6.922 17.405 1,209.25 7.026 17.754 1,209.30 7.131 18.108 1,209.35 7.236 18.467 1,209.40 7.341 18.832 1,209.45 7.446 19.201 1,209.50 7.551 19.576 1,209.55 7.655 19.956 1,209.60 7.760 20.342 1,209.65 7.865 20.733 1,209.70 7.970 21.128 1,209.75 8.075 21.530 1,209.80 8.180 21.936 1,209.85 8.284 22.347 1,209.90 8.389 22.764 1,209.95 8.494 23.186 1,210.00 8.599 23.614
NOAA 24-hr A 100-Year Rainfall=7.61"IA-340-3 - HydroCAD Wetland Model
Page 19HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Time span=5.00-60.00 hrs, dt=0.05 hrs, 1101 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Runoff Area=49.100 ac 0.00% Impervious Runoff Depth=5.03"Subcatchment 2S: Rainfall into Wetland Flow Length=300' Slope=0.0030 '/' Tc=15.7 min CN=78 Runoff=295.99 cfs 20.588 af
Runoff Area=1,177.600 ac 0.00% Impervious Runoff Depth=3.91"Subcatchment 5S: Watershed to Flow Length=12,017' Slope=0.0037 '/' Tc=537.5 min CN=68 Runoff=483.66 cfs 383.685 af
Peak Elev=1,209.62' Storage=20.495 af Inflow=487.23 cfs 404.273 afPond 9P: Moline Wetland Primary=8.55 cfs 11.935 af Secondary=478.12 cfs 392.337 af Outflow=486.67 cfs 404.272 af
Total Runoff Area = 1,226.700 ac Runoff Volume = 404.273 af Average Runoff Depth = 3.95" 100.00% Pervious = 1,226.700 ac 0.00% Impervious = 0.000 ac
Page 20HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Summary for Subcatchment 2S: Rainfall into Wetland
Runoff = 295.99 cfs @ 12.24 hrs, Volume= 20.588 af, Depth= 5.03" Routed to Pond 9P : Moline Wetland
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-60.00 hrs, dt= 0.05 hrs NOAA 24-hr A 100-Year Rainfall=7.61"
Area (ac) CN Description
49.100 78 Row crops, straight row, Good, HSG B
49.100 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs)
15.7 300 0.0030 0.32 Sheet Flow, Cultivated: Residue<=20% n= 0.060 P2= 7.61"
Subcatchment 2S: Rainfall into Wetland
Runoff
Hydrograph
Time (hours) 605856545250484644424038363432302826242220181614121086
F lo w cf s)
NOAA 24-hr A 100-Year Rainfall=7.61" Runoff Area=49.100 ac
Runoff Volume=20.588 af Runoff Depth=5.03"
Flow Length=300' Slope=0.0030 '/'
Tc=15.7 min
CN=78
295.99 cfs
Page 21HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 2S: Rainfall into Wetland
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
5.00 0.32 0.00 0.00
5.50 0.37 0.00 0.00
6.00 0.41 0.00 0.00
6.50 0.46 0.00 0.00
7.00 0.51 0.00 0.00
7.50 0.58 0.00 0.00
8.00 0.65 0.00 0.23
8.50 0.72 0.01 0.61
9.00 0.81 0.02 1.06
9.50 0.91 0.04 1.85
10.00 1.04 0.07 3.15
10.50 1.20 0.12 4.89
11.00 1.45 0.21 9.35
11.50 1.89 0.43 21.47
12.00 3.55 1.54 96.94
12.50 5.72 3.33 127.83
13.00 6.16 3.72 39.52
13.50 6.41 3.94 21.73
14.00 6.57 4.08 14.45
14.50 6.70 4.20 11.81
15.00 6.80 4.30 9.24
15.50 6.89 4.37 7.48
16.00 6.96 4.44 6.85
16.50 7.03 4.51 6.24
17.00 7.10 4.56 5.62
17.50 7.15 4.61 4.99
18.00 7.20 4.66 4.37
18.50 7.24 4.70 3.94
19.00 7.29 4.74 3.78
19.50 7.33 4.77 3.63
20.00 7.36 4.81 3.47
20.50 7.40 4.84 3.32
21.00 7.44 4.87 3.16
21.50 7.47 4.90 3.00
22.00 7.50 4.93 2.85
22.50 7.53 4.96 2.69
23.00 7.56 4.98 2.53
23.50 7.58 5.01 2.37
24.00 7.61 5.03 2.25
24.50 7.61 5.03 0.09
25.00 7.61 5.03 0.00
25.50 7.61 5.03 0.00
26.00 7.61 5.03 0.00
26.50 7.61 5.03 0.00
27.00 7.61 5.03 0.00
27.50 7.61 5.03 0.00
28.00 7.61 5.03 0.00
28.50 7.61 5.03 0.00
29.00 7.61 5.03 0.00
29.50 7.61 5.03 0.00
30.00 7.61 5.03 0.00
30.50 7.61 5.03 0.00
31.00 7.61 5.03 0.00
31.50 7.61 5.03 0.00
32.00 7.61 5.03 0.00
32.50 7.61 5.03 0.00
33.00 7.61 5.03 0.00
33.50 7.61 5.03 0.00
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
34.00 7.61 5.03 0.00
34.50 7.61 5.03 0.00
35.00 7.61 5.03 0.00
35.50 7.61 5.03 0.00
36.00 7.61 5.03 0.00
36.50 7.61 5.03 0.00
37.00 7.61 5.03 0.00
37.50 7.61 5.03 0.00
38.00 7.61 5.03 0.00
38.50 7.61 5.03 0.00
39.00 7.61 5.03 0.00
39.50 7.61 5.03 0.00
40.00 7.61 5.03 0.00
40.50 7.61 5.03 0.00
41.00 7.61 5.03 0.00
41.50 7.61 5.03 0.00
42.00 7.61 5.03 0.00
42.50 7.61 5.03 0.00
43.00 7.61 5.03 0.00
43.50 7.61 5.03 0.00
44.00 7.61 5.03 0.00
44.50 7.61 5.03 0.00
45.00 7.61 5.03 0.00
45.50 7.61 5.03 0.00
46.00 7.61 5.03 0.00
46.50 7.61 5.03 0.00
47.00 7.61 5.03 0.00
47.50 7.61 5.03 0.00
48.00 7.61 5.03 0.00
48.50 7.61 5.03 0.00
49.00 7.61 5.03 0.00
49.50 7.61 5.03 0.00
50.00 7.61 5.03 0.00
50.50 7.61 5.03 0.00
51.00 7.61 5.03 0.00
51.50 7.61 5.03 0.00
52.00 7.61 5.03 0.00
52.50 7.61 5.03 0.00
53.00 7.61 5.03 0.00
53.50 7.61 5.03 0.00
54.00 7.61 5.03 0.00
54.50 7.61 5.03 0.00
55.00 7.61 5.03 0.00
55.50 7.61 5.03 0.00
56.00 7.61 5.03 0.00
56.50 7.61 5.03 0.00
57.00 7.61 5.03 0.00
57.50 7.61 5.03 0.00
58.00 7.61 5.03 0.00
58.50 7.61 5.03 0.00
59.00 7.61 5.03 0.00
59.50 7.61 5.03 0.00
60.00 7.61 5.03 0.00
Page 22HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Summary for Subcatchment 5S: Watershed to Creek South of Moline
CN adjusted to correlate inflow volumetric flowrate with inflow volumetric flowrate for a 100-year event from StreamStats Report.
Based on existing 60" CMP culvert at adjacent road, upstream of grade stabilization structure, and FEMA flood map indicating 100-year flood event does not overtop road, it is likely peak flow for 100-year event down ditch/creek will be 240 cfs. Accordingly, modeling diagram and peak elevations for certain events are likely higher than what will actually be experienced on site.
Runoff = 483.66 cfs @ 19.68 hrs, Volume= 383.685 af, Depth= 3.91" Routed to Pond 9P : Moline Wetland
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-60.00 hrs, dt= 0.05 hrs NOAA 24-hr A 100-Year Rainfall=7.61"
Area (ac) CN Description 1,177.600 68 Pasture/grassland/range, Poor, HSG A 1,177.600 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs)
537.5 12,017 0.0037 0.37 Lag/CN Method, Subcatchment 5S: Watershed to Creek South of Moline
Runoff
Hydrograph
Time (hours) 605856545250484644424038363432302826242220181614121086
F lo w cf s)
NOAA 24-hr A 100-Year Rainfall=7.61"
Runoff Area=1,177.600 ac Runoff Volume=383.685 af
Runoff Depth=3.91" Flow Length=12,017'
Slope=0.0037 '/' Tc=537.5 min
CN=68
483.66 cfs
Page 23HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Hydrograph for Subcatchment 5S: Watershed to Creek South of Moline
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
5.00 0.32 0.00 0.00
5.50 0.37 0.00 0.00
6.00 0.41 0.00 0.00
6.50 0.46 0.00 0.00
7.00 0.51 0.00 0.00
7.50 0.58 0.00 0.00
8.00 0.65 0.00 0.00
8.50 0.72 0.00 0.00
9.00 0.81 0.00 0.00
9.50 0.91 0.00 0.00
10.00 1.04 0.00 0.00
10.50 1.20 0.01 0.00
11.00 1.45 0.05 0.05
11.50 1.89 0.16 0.19
12.00 3.55 0.93 0.73
12.50 5.72 2.40 3.63
13.00 6.16 2.74 9.79
13.50 6.41 2.94 23.22
14.00 6.57 3.06 46.26
14.50 6.70 3.17 78.74
15.00 6.80 3.25 119.40
15.50 6.89 3.32 170.29
16.00 6.96 3.38 229.84
16.50 7.03 3.44 294.00
17.00 7.10 3.49 354.22
17.50 7.15 3.53 404.83
18.00 7.20 3.57 443.55
18.50 7.24 3.61 470.28
19.00 7.29 3.64 479.90
19.50 7.33 3.68 483.05
20.00 7.36 3.71 475.27
20.50 7.40 3.74 458.66
21.00 7.44 3.77 437.13
21.50 7.47 3.79 409.72
22.00 7.50 3.82 377.72
22.50 7.53 3.84 341.83
23.00 7.56 3.87 307.78
23.50 7.58 3.89 278.15
24.00 7.61 3.91 253.00
24.50 7.61 3.91 230.55
25.00 7.61 3.91 210.74
25.50 7.61 3.91 193.34
26.00 7.61 3.91 177.38
26.50 7.61 3.91 162.35
27.00 7.61 3.91 148.13
27.50 7.61 3.91 134.95
28.00 7.61 3.91 123.24
28.50 7.61 3.91 111.73
29.00 7.61 3.91 100.98
29.50 7.61 3.91 90.72
30.00 7.61 3.91 80.98
30.50 7.61 3.91 72.24
31.00 7.61 3.91 63.67
31.50 7.61 3.91 56.27
32.00 7.61 3.91 49.48
32.50 7.61 3.91 43.34
33.00 7.61 3.91 37.84
33.50 7.61 3.91 32.88
Time (hours)
Precip.
(inches)
Excess (inches)
Runoff (cfs)
34.00 7.61 3.91 28.73
34.50 7.61 3.91 25.00
35.00 7.61 3.91 21.86
35.50 7.61 3.91 19.07
36.00 7.61 3.91 16.59
36.50 7.61 3.91 14.52
37.00 7.61 3.91 12.66
37.50 7.61 3.91 11.02
38.00 7.61 3.91 9.66
38.50 7.61 3.91 8.49
39.00 7.61 3.91 7.44
39.50 7.61 3.91 6.46
40.00 7.61 3.91 5.59
40.50 7.61 3.91 4.76
41.00 7.61 3.91 4.01
41.50 7.61 3.91 3.30
42.00 7.61 3.91 2.66
42.50 7.61 3.91 2.11
43.00 7.61 3.91 1.59
43.50 7.61 3.91 1.35
44.00 7.61 3.91 1.13
44.50 7.61 3.91 0.95
45.00 7.61 3.91 0.81
45.50 7.61 3.91 0.67
46.00 7.61 3.91 0.57
46.50 7.61 3.91 0.47
47.00 7.61 3.91 0.40
47.50 7.61 3.91 0.33
48.00 7.61 3.91 0.28
48.50 7.61 3.91 0.23
49.00 7.61 3.91 0.18
49.50 7.61 3.91 0.15
50.00 7.61 3.91 0.12
50.50 7.61 3.91 0.09
51.00 7.61 3.91 0.07
51.50 7.61 3.91 0.05
52.00 7.61 3.91 0.03
52.50 7.61 3.91 0.02
53.00 7.61 3.91 0.01
53.50 7.61 3.91 0.01
54.00 7.61 3.91 0.00
54.50 7.61 3.91 0.00
55.00 7.61 3.91 0.00
55.50 7.61 3.91 0.00
56.00 7.61 3.91 0.00
56.50 7.61 3.91 0.00
57.00 7.61 3.91 0.00
57.50 7.61 3.91 0.00
58.00 7.61 3.91 0.00
58.50 7.61 3.91 0.00
59.00 7.61 3.91 0.00
59.50 7.61 3.91 0.00
60.00 7.61 3.91 0.00
Page 24HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Summary for Pond 9P: Moline Wetland
Modeling was performed assuming the wetland at FSL at the beggining of the rain event, 1208.0'.
Inflow Area = 1,226.700 ac, 0.00% Impervious, Inflow Depth = 3.95" for 100-Year event Inflow = 487.23 cfs @ 19.68 hrs, Volume= 404.273 af Outflow = 486.67 cfs @ 19.72 hrs, Volume= 404.272 af, Atten= 0%, Lag= 2.5 min Primary = 8.55 cfs @ 19.72 hrs, Volume= 11.935 af Secondary = 478.12 cfs @ 19.72 hrs, Volume= 392.337 af
Routing by Stor-Ind method, Time Span= 5.00-60.00 hrs, dt= 0.05 hrs Starting Elev= 1,208.00' Surf.Area= 6.304 ac Storage= 9.565 af Peak Elev= 1,209.62' @ 19.72 hrs Surf.Area= 7.802 ac Storage= 20.495 af (10.930 af above start)
Plug-Flow detention time= 57.5 min calculated for 394.349 af (98% of inflow) Center-of-Mass det. time= 22.3 min ( 1,304.8 - 1,282.5 )
Volume Invert Avail.Storage Storage Description #1 1,205.00' 23.614 af Custom Stage Data (Prismatic) Listed below (Recalc)
Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet)
1,205.00 0.010 0.000 0.000 1,206.00 0.558 0.284 0.284 1,207.00 5.850 3.204 3.488 1,208.00 6.304 6.077 9.565 1,209.10 6.712 7.159 16.724 1,210.00 8.599 6.890 23.614
Device Routing Invert Outlet Devices #1 Primary 1,205.00' 18.0" Round CMP_Round 18" Outlet
L= 39.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 1,205.00' / 1,205.00' S= 0.0000 '/' Cc=
0.900 n= 0.021 Corrugated metal, Flow Area= 1.77 sf
#2 Device 1 1,208.00' 3.5' long 48" Riser Stoplogs 0 End Contraction(s) #3 Device 2 1,205.00' 18.0" Round CMP_Round 18" Inlet
L= 15.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 1,205.00' / 1,205.00' S= 0.0000 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 1.77 sf
#4 Secondary 1,208.00' 45' Spillway, C= 3.27 Offset (feet) -62.50 -22.50 22.50 62.50 Height (feet) 2.00 0.00 0.00 2.00
Primary OutFlow Max=8.55 cfs @ 19.72 hrs HW=1,209.62' (Free Discharge) 1=CMP_Round 18" Outlet (Passes 8.55 cfs of 12.92 cfs potential flow)
2=48" Riser Stoplogs (Passes 8.55 cfs of 23.59 cfs potential flow) 3=CMP_Round 18" Inlet (Inlet Controls 8.55 cfs @ 4.84 fps)
Secondary OutFlow Max=478.00 cfs @ 19.72 hrs HW=1,209.62' (Free Discharge) 4=45' Spillway (Weir Controls 478.00 cfs @ 2.69 fps)
Page 25HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Pond 9P: Moline Wetland
Inflow Outflow Primary Secondary
Hydrograph
Time (hours) 605856545250484644424038363432302826242220181614121086
F lo w cf s)
Inflow Area=1,226.700 ac Peak Elev=1,209.62'
Storage=20.495 af
487.23 cfs
486.67 cfs
8.55 cfs
478.12 cfs
Pond 9P: Moline Wetland
Total Primary Secondary
Stage-Discharge
Discharge (cfs) 700650600550500450400350300250200150100500
E le va ti o n fe et
1,210
1,209
1,208
1,207
1,206
1,205
CMP_Round 18" Outlet + CMP_Round 18" Inlet
48" Riser Stoplogs 45' Spillway
Page 26HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Pond 9P: Moline Wetland
Surface Storage
Stage-Area-Storage
Storage (acre-feet) 2220181614121086420
Surface/Horizontal/Wetted Area (acres) 876543210
E le va ti o n fe et
1,210
1,209
1,208
1,207
1,206
1,205
Starting Elevation
Custom Stage Data
Page 27HydroCAD® 10.20-2g s/n 04207 © 2022 HydroCAD Software Solutions LLC
Hydrograph for Pond 9P: Moline Wetland
Time (hours)
Inflow (cfs)
Storage (acre-feet)
Elevation (feet)
Outflow (cfs)
Primary (cfs)
Secondary (cfs)
5.00 0.00 9.565 1,208.00 0.00 0.00 0.00
6.00 0.00 9.565 1,208.00 0.00 0.00 0.00
7.00 0.00 9.565 1,208.00 0.00 0.00 0.00
8.00 0.23 9.568 1,208.00 0.02 0.00 0.02
9.00 1.06 9.610 1,208.01 0.26 0.02 0.24
10.00 3.15 9.726 1,208.03 0.92 0.07 0.85
11.00 9.40 10.023 1,208.07 3.32 0.23 3.09
12.00 97.67 11.628 1,208.32 32.49 2.12 30.37
13.
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