Addendum 1 & Pre-bid.pdf
PDF 14 MB Posted
- Attached to
- 26-09 Har892022C (Hardin)
- Solicitation number
- 26-09 Har892022C (Hardin)
- Issued by
- Hancock County, Iowa
About this file
This Addendum 1 and Pre-Bid Meeting Minutes document pertains to Bid No. 26-09 (HAR892022C), a nutrient reduction wetland project in Hardin County, Iowa, issued by the Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation and Water Quality. The project involves construction of a tile zone wetland requiring site stripping and preparation, drain tile investigation and removal (2,800 linear feet), excavation (904 cubic yards), earthfill placement (7,618 cubic yards across multiple categories), topsoil placement (5,591 cubic yards), installation of a 4-foot by 4-foot water control structure with stop log storage, 36-inch reinforced concrete pipe (79 linear feet), HDPE corrugated profile wall pipe in various sizes totaling approximately 3,244 linear feet, corrugated metal pipe tile outlets, riprap placement (245 tons), and seeding of 6.8 acres (1.5 acres structure and channel seeding; 5.8 acres buffer seeding). Addendum 1, issued August 21, 2026, added three new bid items: 4-inch HDPE tile (Bid Item 15), 8-inch HDPE single wall pipe (Bid Item 18), and 2-inch clean rock at construction entrance (Bid Item 27), along with revised plans and technical specifications. Sealed bids were due August 26, 2026 at 3:00 PM via the Iowa Management of Procurement and Contracts System (IMPACS), with public bid opening the same day. A pre-bid conference was held August 13, 2026 at the Hardin County ISU Extension Office. Bidders must acknowledge receipt of Addendum 1 on the proposal form or face disqualification. Construction must commence within seven days of a preconstruction conference and be completed by June 15, 2027 for all work except seeding, with buffer seeding due by June 30, 2027 and structural seeding by September 15, 2027.
Bidders must submit a proposal guarantee of 10 percent of the base bid and, if awarded, provide a Performance Bond equal to 100 percent of the contract price within 14 days of award notification. Liquidated damages are assessed at $175.00 per day for all work except seeding and $125.00 per day for seeding-related delays. The project's estimated construction cost range is $200,000 to $300,000. Seeding must comply with Iowa Construction Specification IA CS-006 seeding periods and use native Iowa ecotype seed mixtures. Earthfill compaction in the embankment core requires NRCS Method 2 compaction to 90 percent maximum density per ASTM D 698. Construction materials are exempt from sales and use tax under Iowa Code Sections 422.42(16) and (17) and 422.47(5). Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing. Electronic files for grading can be obtained from Dan Jensen (Shive-Hattery Engineering) at 515-422-5536 or djensen@shive-hattery.com. Written technical questions on plans and specifications were due August 20, 2026 at 3:00 PM for inclusion in a final addendum.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Bid Bond.pdf | ||
| Plans - REVISED.pdf | ||
| Specifications - REVISED.pdf | ||
| Specifications.pdf | ||
| Plans.pdf | ||
| Appendix I - Construction & Admin Forms.pdf | ||
| General Requirements.pdf | ||
| Schedule of Prices - REVISED.pdf | ||
| H&H Report.pdf | ||
| Schedule of Prices Worksheet.pdf | ||
| Notice to Bidders.pdf | ||
| Proposal - Acknowledgment - Affidavit.pdf |
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Text version
Division of Soil Conservation and Water Quality
Cover Sheet
To: All plan holders From: Tracy Blocker, Division
Pages: 85 Phone: 515-344-6279
Re: Har892022C Nutrient Reduction Wetland (Bid 26-09) Date: August 21, 2026
Comments: Page
• Cover Sheet 1
• Addendum No. 1 with Attachments 1, 2, and 3 2-79
• Pre-Bid Meeting Minutes 80-84
• Pre-Bid meeting attendance list/Updated plan holders list 85
• Electronic files for grading can be obtained by e-mail by contacting Dan Jensen with Shive-Hattery at 515-422-5536 or djensen@shive-hattery.com.
- END OF COVER PAGE -
August 21, 2026
Division of Soil Conservation and Water Quality 1305 E Walnut Street Des Moines, IA 50319
TO: Prospective Bidders
Subject: Addendum No. 1 to Bid Documents HAR892022C Nutrient Reductionl Wetland Project – Bid No. 26-9 Hardin County, Iowa
This addendum forms a part of the bidding contract documents and modifies the original bidding documents posted July 31, 2026. An updated bidding form, Document CC.– Proposal and Schedule of Prices is attached with the addendum acknowledged. This updated bidding form must be used for 26-9 and all bidders must acknowledge this addendum on Page CC-2. FAILURE TO DO SO WILL SUBJECT BIDDER TO DISQUALIFICATON.
Description:
DOCUMENT CC– PROPOSAL AND SCHEDULE OF PRICES, 26-8 (See Attachment No.1)
Please use the updated Document CC, to acknowledge Addendum No. 1 (See Attachment No. 1):
Plans (See Attachment No. 2) Plans have been updated to add 4” tile, modify the quantities and material specifications for the 8” tile to include dual and single wall pipe, and to add 2” clean rock at the construction entrance. There are three new work items, Bid Item #15 “4” HDPE tile”, Bid item 18 “8” HDPE single wall” and Bid Item #27 “2” clean rock” being included. As a result, the numbering of the bid items has also changed. Attached are the revised set of Plans.
Specifications (See Attachment No. 3)
The Technical Specifications booklet has also been revised to include the revisions in the plans listed in Attachment 2. There are three new Bid Items: Bid Item #15 “4” HDPE tile”, Bid item 18 “8” HDPE single wall” and Bid Item #27 “2” clean rock”. Attached are the revised set of Technical Specifications.
Sincerely, Sara Smith, P.E.
Water Resources Bureau
Attachment No. 1 – Updated Document CC Attachment No. 2 – Revised set of Plans Attachment No. 3 – Revised set of Technical Specifications
End of Addendum No. 1
HAR892022C Nutrient Reduction Wetland Project DOCUMENT CC – Attachment 1 Bid No. 26-9 PROPOSAL AND SCHEDULE OF PRICES
Time and Date for Bid Submissions: 3:00:00 PM, 08/26/2026
BIDDER LOGIN –
https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
Time and Date of Bid Opening: 3:00 PM, August 26, 2026
Bid Opening TEAMS: +1 469-998-7627,,352050218#
Project Description and Location: Har892022C Nutrient Reduction Wetland Project Section 22, Township 89 North, Range 20 West Hardin County, Iowa
PROPOSAL AND SCHEDULE OF PRICES
Proposal of (PRINT Name of Bidder: COMPANY & CONTACT)
Located at (FULL Address)
(Telephone Number)
Amount of
Proposal Guarantee
Description of Work Specified Completion Date Liquidated Damages
10% of Base Bid
All Work Except Seeding
June 15, 2027
$175.00 Per Day
Seeding - Buffer Seeding – Structure
June 30, 2027 September 15, 2027
$125.00 Per Day
Seeding must be done within the respective seeding period
The undersigned hereby agrees, if awarded the contract, to execute the proposed contract and to furnish satisfactory Performance Bond in an amount not less than one hundred percent (100%) of the contract award within fourteen (14) days from the date when Notice-of-Award is received, and to provide all supervision, labor, materials, and equipment required to complete the project designated above, for the prices hereinafter set forth, in strict compliance with the Contract Documents prepared by the Division.
Further, the parties agree and acknowledge as follows:
The amount of loss or damages likely to be incurred by Division are uncertain and said loss is incapable or very difficult to quantify and estimate;
The amount specified for liquidated damages herein bear a reasonable relationship to, and are not plainly or grossly disproportionate to, the probable loss likely to be incurred by Division in connection with any delay on part of the Contractor;
The amount of liquidated damages fixed herein bears a reasonable relationship to Division’s anticipated losses and/or actual losses;
The amount of liquidated damages herein fairly approximates Division’s loss at the time of making of this Agreement;
The amount of liquidated damages fixed herein are fair and reasonable and it approximates to the extent possible the actual loss to Division as a result of any delay on the part of Contractor; and
Division and Contractor are sophisticated parties and negotiated this Agreement at arm’s length.
Now therefore, in consideration of the mutual obligations set forth herein, the receipt and sufficiency of which is hereby acknowledged, the parties agree as follows:
Contractor will commence the work after the Preconstruction Conference and by the Construction Start Date approved by Division in the Construction Progress Schedule.
Contractor will complete the work within the specified time period identified in the contract, or as amended, or be responsible for liquidated damages per day as set forth in the above table.
The liquidated damages may be withheld from payments made to the Contractor by the Division upon written notice that liquidated damages have begun to accrue, and such damages are in addition to other remedies available as provided for in this contract and applicable law.
A Proposal Guarantee in the amount stipulated herein is included with this proposal, to be forfeited to the Division, if the undersigned fails or refuses to execute the contract and furnish satisfactory Performance Bond, if awarded the contract.
By _______________________________________________ (Signed)
(PRINT NAME)
(Title) (Date)
In executing this proposal, Bidder acknowledges receipt of Addendum Number _____ dated ____________________
In executing this proposal, Bidder acknowledges receipt of Addendum Number _____ dated ____________________
In executing this proposal, Bidder acknowledges receipt of Addendum Number _____ dated ____________________
1 08/21/26
THE FOLLOWING AFFIDAVIT MUST BE COMPLETED AND NOTARIZED, OR THIS BID WILL BE REJECTED
AFFIDAVIT
The signatory, being duly sworn, does depose and say that the undersigned is an authorized representative of:
(Name of Firm)
Located at ____________________________________________________________________________________ hereinafter referred to as “Bidder” and does hereby affirm to have personal knowledge that said Bidder has thoroughly examined the Contract Documents, carefully prepared the Proposal and Schedule of Prices form, and has checked the same in detail before submitting; and that said Bidder, or the agents, officers, or employees thereof, have not, either directly or indirectly, entered into any agreement, participated in any collusion or fraud, or otherwise taken any action in restraint of free competitive bidding in connection with this bid.
(Signed)
(PRINT name)
Subscribed and sworn to before me this _________ day of ________________________________, 20____
(Signed, Notary)
My Commission Expires _______________, 20______
Must include notary stamp
SCHEDULE OF PRICES
Har892022C Project Contract No. 26-09 Section 22, Township 89 North, Range 20 West, Hardin County, Iowa
Name of Bidder:
IMPACS
Item No.
Eng's Item No. Work or Material Spec No.
Est.
Qty Unit
Unit Price Total
1.1 1 SITE STRIPPING & PREPARATION IA CS-001 1 LS
2 CROP DAMAGE IA CS-001 0.0
1.2 3 STRUCTURE & CHANNEL SEEDING IA CS-006 1.5 AC
1.3 4 BUFFER SEEDING IA CS-006 5.8 AC
1.4 5 MOBILIZATION AND DEMOBILIZATION IA CS-008 1 LS
1.5 6 DRAIN TILE INVESTIGATION AND REMOVAL IA CS-009 2,800 LF
1.6 7 EXCAVATION (GENERAL) IA CS-021 904 CY
1.7 8 EARTHFILL (GENERAL) IA CS-023 3,680 CY
1.8 9 EARTHFILL (GENERAL DAM) IA CS-023 1,358 CY
1.9 10 EARTHFILL (DAM CORE) IA CS-023 2,572 CY
1.10 11 EARTHFILL (SCARIFY AND RECOMPACT 9" LAYER
OF WETLAND BOTTOM (P)) IA CS-023 3,008 CY
1.11 12 TOPSOIL PLACEMENT IA CS-026 5,591 CY
1.12 13 4' X 4' WATER CONTROL STRUCTURE IA CS-031 1 EA
1.13 14 36" RCP DRAWDOWN WETLAND OUTLET PIPE IA CS-031 79 LF
1.14 15 6" CORRUGATED PROFILE WALL (DUAL WALL)
POLYETHYLENE PIPE IA CS-046 1,455 LF
1.15 16 8" CORRUGATED PROFILE WALL (SINGLE WALL)
POLYETHYLENE PIPE IA CS-046 1,329 LF
1.16 17 10" CORRUGATED PROFILE WALL (DUAL WALL)
POLYETHYLENE PIPE IA CS-046 51 LF
1.17 18 12" CORRUGATED PROFILE WALL (DUAL WALL)
POLYETHYLENE PIPE IA CS-046 409 LF
1.18 19 STOP LOG STORAGE STRUCTURE IA CS-046 1 EA
1.19 20 8" CMP TILE OUTLETS (20 LF EACH) IA CS-051 3 EA
1.20 21 10" CMP TILE OUTLETS (20 LF EACH) IA CS-051 2 EA
1.21 22 12" CMP TILE OUTLETS (20 LF EACH) IA CS-051 1 EA
1.22 23 15" CMP TILE OUTLETS (20 LF EACH) IA CS-051 1 EA
1.23 24 RIP RAP IA CS-061 245.0 TON
*IMPACS will not accept an amount less than 1. Enter a unit price for 1 unit, and the bid tabulation will be adjusted based on the engineer's estimated quantity.
TOTAL BASE BID………………………………………………………………………………………$________________
Worksheet purposes only. Bids will only be accepted through the on-line Iowa Management of Procurement & Contracts System (IMPACS).
To register and learn about IMPACS, go to:https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
END OF DOCUMENT CC
https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa
Attachment No. 2
Revised set of Plans
STATE OF IOWA
HARDIN COUNTY, IA
ENGINEER
SHIVE-HATTERY, INC
ATTN: DAN JENSEN
4125 WESTOWN PARKWAY, SUITE 100
WEST DES MOINES, IOWA 50266
PH: (515) 223-8104
FX: (515) 223-0622
SITE ADDRESS:
14274 Oo AVE
IOWA FALLS, IA, 50126
CONTACT INFORMATION:
IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP
SARA SMITH, PE
502 E. 9TH STREET
DES MOINES, IA, 50319
PH: (515) 422-7335
HAR892022C - SHOOFLY JENSEN NR
WETLAND
IDALS
PROJECT
LOCATION
PROJECT DRAWING COORDINATE SYSTEM:
HORIZONTAL: NAD83 IOWA STATE PLANE NORTH ZONE (1401)
VERTICAL: NAVD88
UNITS: U.S. SURVEY FEET
PAGES, SHEETS OR DIVISIONS COVERED BY THIS SEAL:
My License Renewal Date is: DECEMBER 31, Printed or typed name:
License Number:
Signature: Date
I HEREBY CERTIFY THAT THIS ENGINEERING DOCUMENT DESCRIBED
BELOW WAS PREPARED BY ME OR UNDER MY DIRECT PERSONAL
SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER
UNDER THE LAWS OF THE STATE OF IOWA.
ALL SHEETS
DANIEL JENSEN
25063
CIVIL ENGINEER
NRCS NEM PART 105 CERTIFICATION
THE SIGNING PROFESSIONALS HEREBY CERTIFY THAT, TO
THE BEST OF THEIR PROFESSIONAL KNOWLEDGE,
JUDGEMENT, AND BELIEF, THESE PLANS MEET APPLICABLE
NRCS STANDARDS.
IO
W A D E P A R T M E NT O F
AGR
I C U L T U R E & L A N D S T EWA R D
S H
IP
PROJECT LOCATION
GUTHRIE COUNTY
O o AVE
LANDOWNER CONTACT:
BILL JENSEN
PH: (641) 373-3534
ALDEN
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IOWA FALLS
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HUBBARD
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135TH ST
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IOWA DEPARTMENT OF AGRICULTURE AND
LAND STEWARDSHIP
ONE-CALL TICKET NUMBER: _____________________________
CLIENT ACCEPTANCE
PRINTED NAME: _____________________________
SIGNATURE: _____________________________
THE ENGINEERING JOB CLASS IS IV
NUTRIENT REDUCTION WETLAND
CONSTRUCTION
ENTRANCE
CONSTRUCTION
ACCESS ROUTE
Sheet List Table Sheet Number Sheet Title
C001 COVER SHEET
C002 QUANTITIES & NOTES
CD01 EXISTING SITE CONDITIONS
CD02 EXISTING TILE REMOVAL
C201 OVERALL GRADING PLAN
C202 GRADING PLAN
C203 CUT-FILL PLAN
C301 EMBANKMENT PLAN & PROFILE
C302 PRINCIPAL SPILLWAY PLAN & PROFILE
C303 PROPOSED TILE PLAN AND PROFILE
C304 PROPOSED TILE PLAN AND PROFILE
C305 PROPOSED TILE PLAN AND PROFILE
C306 PROPOSED TILE PLAN AND PROFILE
C501 CONSTRUCTION DETAILS
C502 CONSTRUCTION DETAILS
C503 CONSTRUCTION DETAILS
C601 SEEDING PLAN
PAGES, SHEETS OR DIVISIONS COVERED BY THIS SEAL:
My License Renewal Date is: DECEMBER 31, Printed or typed name:
License Number:
Signature: Date
I HEREBY CERTIFY THAT THIS ENGINEERING DOCUMENT DESCRIBED
BELOW WAS PREPARED BY ME OR UNDER MY DIRECT PERSONAL
SUPERVISION AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER
UNDER THE LAWS OF THE STATE OF IOWA.
ALL SHEETS
DANIEL JENSEN
25063
CIVIL ENGINEER
6/5/20268/20/2026
MULTICORELINK:C001 QUANTITIES & NOTES-C002 QUANTITIES & NOTES
MULTICORELINK:C001 QUANTITIES & NOTES-C002 QUANTITIES & NOTES
MULTICORELINK:C101 EXISTING SITE CONDITIONS-C101 EXISTING SITE CONDITIONS
MULTICORELINK:C101 EXISTING SITE CONDITIONS-C101 EXISTING SITE CONDITIONS
MULTICORELINK:C101 EXISTING SITE CONDITIONS-CD02 EXISTING TILE REMOVAL
MULTICORELINK:C101 EXISTING SITE CONDITIONS-CD02 EXISTING TILE REMOVAL
MULTICORELINK:C201 WETLAND GRADING PLAN-C201 OVERALL GRADING PLAN
MULTICORELINK:C201 WETLAND GRADING PLAN-C201 OVERALL GRADING PLAN
MULTICORELINK:C201 WETLAND GRADING PLAN-C202 GRADING PLAN
MULTICORELINK:C201 WETLAND GRADING PLAN-C202 GRADING PLAN
MULTICORELINK:C201 WETLAND GRADING PLAN-C203 CUT-FILL PLAN
MULTICORELINK:C201 WETLAND GRADING PLAN-C203 CUT-FILL PLAN
MULTICORELINK:C301 EMBANKMENT PLAN & PROFILE-C301 EMBANKMENT PLAN & PROFILE
MULTICORELINK:C301 EMBANKMENT PLAN & PROFILE-C301 EMBANKMENT PLAN & PROFILE
MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C303 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C303 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C304 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C304 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C305 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C305 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C306 PROPOSED TILE PLAN AND PROFILE MULTICORELINK:C302 PROPOSED TILE PLAN AND PROFILE-C306 PROPOSED TILE PLAN AND PROFILE
MULTICORELINK:C501 CONSTRUCTION DETAILS-C501 CONSTRUCTION DETAILS
MULTICORELINK:C501 CONSTRUCTION DETAILS-C501 CONSTRUCTION DETAILS
MULTICORELINK:C501 CONSTRUCTION DETAILS-C502 CONSTRUCTION DETAILS
MULTICORELINK:C501 CONSTRUCTION DETAILS-C502 CONSTRUCTION DETAILS
MULTICORELINK:C501 CONSTRUCTION DETAILS-C503 CONSTRUCTION DETAILS
MULTICORELINK:C501 CONSTRUCTION DETAILS-C503 CONSTRUCTION DETAILS
MULTICORELINK:C601 SEEDING PLAN-C601 SEEDING PLAN
MULTICORELINK:C601 SEEDING PLAN-C601 SEEDING PLAN
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ESTIMATED PROJECT QUANTITIES: ESTIMATE REFERENCE INFORMATION:
GENERAL NOTES:
1. THE LOCATIONS OF UTILITY MAINS, STRUCTURES AND SERVICE CONNECTIONS PLOTTED ON THIS DRAWING ARE APPROXIMATE ONLY AND WERE OBTAINED FROM RECORDS MADE AVAILABLE TO
SHIVE-HATTERY, INC. THERE MAY BE OTHER EXISTING UTILITY MAINS, STRUCTURES AND SERVICE CONNECTIONS NOT KNOWN TO SHIVE-HATTERY, INC. AND NOT SHOWN ON THIS DRAWING. THE VERIFICATION OF EXISTENCE OF, AND THE DETERMINATION OF THE EXACT LOCATION OF, UTILITY MAINS, STRUCTURES AND SERVICE CONNECTIONS SHALL BE THE RESPONSIBILITY OF THE
CONSTRUCTION CONTRACTOR(S).
2. IOWA CODE 480, UNDERGROUND FACILITIES INFORMATION, REQUIRES VERBAL NOTICE TO IOWA ONE-CALL 1-800-292-8989, NOT LESS THAN 48 HOURS BEFORE EXCAVATING, EXCLUDING
WEEKENDS AND HOLIDAYS.
3. THE MEANS OF THE WORK AND THE SAFETY OF THE CONTRACTOR'S EMPLOYEES ARE SOLELY THE RESPONSIBILITY OF THE CONTRACTOR.
4. NO WORK SHALL BE PERFORMED BEYOND THE PROJECT LIMITS WITHOUT PRIOR AUTHORIZATION FROM THE OWNER'S REPRESENTATIVE.
5. REPLACE ANY PROPERTY MONUMENTS REMOVED OR DESTROYED BY CONSTRUCTION. MONUMENTS SHALL BE SET BY A LAND SURVEYOR REGISTERED TO PRACTICE IN THE STATE OF IOWA.
6. ALL DEBRIS AND TRASH ENCOUNTERED DURING CONSTRUCTION WITHIN THE PROJECT LIMITS, OR DIRECTED BY THE ENGINEER, SHALL BE PROPERLY DISPOSED OF.
7. CONTRACTOR IS RESPONSIBLE FOR ALL CONSTRUCTION DE-WATERING THAT IS REQUIRED AT NO ADDITIONAL COST TO THE DIVISION.
8. REPAIR OR REPLACE DAMAGE TO EXISTING FACILITIES (TILE, UTILITIES, FENCES, ETC.) DESIGNATED TO REMAIN, AT NO ADDITIONAL EXPENSE TO THE OWNER. ALL AREAS DISTURBED BY CONSTRUCTION, INCLUDING STAGING AREAS AND HAUL ROUTES, ARE TO BE REWORKED TO THEIR EXISTING CONDITIONS AND SEEDED AT NO ADDITIONAL COST TO THE DIVISION IF OUTSIDE OF
PROJECT LIMITS AND NOT APPROVED BY ENGINEER.
9. WORK WHICH DOES NOT CONFORM TO THE REQUIREMENTS OF THE CONTRACT WILL BE CONSIDERED UNACCEPTABLE. UNACCEPTABLE WORK, WHETHER THE RESULT OF POOR WORKMANSHIP, USE OF DEFECTIVE MATERIALS, DAMAGE THROUGH CARELESSNESS OR ANY OTHER CAUSE, FOUND TO EXIST PRIOR TO THE FINAL ACCEPTANCE OF THE WORK, SHALL BE REMOVED AND REPLACED IN AN ACCEPTABLE MANNER, AS REQUIRED BY THE OWNER AT THE CONTRACTOR'S EXPENSE.
10. WORK DONE CONTRARY TO THE INSTRUCTIONS OF THE OWNERS REPRESENTATIVE, WORK DONE BEYOND THE LINES SHOWN ON THE PLANS OR ANY EXTRA WORK DONE WITHOUT AUTHORITY
WILL NOT BE PAID FOR.
11. A SHRINKAGE FACTOR OF 20% WAS ESTIMATED FOR THIS PROJECT. THE CONTRACTOR SHALL MAKE CHANGES IN EARTHWORK AS NEEDED TO ADJUST FOR INACCURACIES INHERENT WITH ESTIMATING THE SHRINKAGE FACTOR. THESE CHANGES SHALL ONLY BE MADE AFTER CONSULTATION AND APPROVAL BY THE ENGINEER AND DIVISION.
12. CONTOURS AND SPOT ELEVATIONS SHOWN ARE TO FINISHED GRADE.
13. THE CONTRACTOR SHALL KEEP ALL ROADS OPEN TO THROUGH TRAFFIC AT ALL TIMES.
14. ALL WORK WITHIN THE PUBLIC RIGHT OF WAY SHALL BE COORDINATED WITH THE GOVERNING AUTHORITY AND SHALL BE DONE IN ACCORDANCE WITH THEIR STANDARDS.
15. SUBMIT MANUFACTURER'S CERTIFICATION AND MATERIAL DATA FOR ALL MATERIALS DELIVERED TO THE PROJECT SITE AS REQUESTED BY THE OWNERS REPRESENTATIVE.
16. CONSTRUCTION SURVEY STAKING WILL BE PAID FOR BY THE OWNER AND PROVIDED BY THE ENGINEER. CONTROL POINTS WILL BE SET FOR USE WITH GPS CONTROLLED GRADING, IF DESIRED.
CONTRACTOR SHALL PRESERVE STAKES TO THE EXTENT FEASIBLE. ANY RE-STAKING COSTS WILL BE THE RESPONSIBILITY OF THE CONTRACTOR.
17. NEITHER SHIVE-HATTERY OR IDALS GUARANTEE THE PRACTICE TO HOLD A PERMANENT POOL OF WATER
WETLAND DATA:
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ITEM NO. ITEM DESCRIPTION UNIT BID
QUANTITY SPEC # AS-BUILT
QUANTITY
1 SITE STRIPPING & PREPARATION 1 LS IA CS-001
2 CROP DAMAGE 0 AC IA CS-001
3 STRUCTURE & CHANNEL SEEDING 1.5 AC IA CS-006
4 BUFFER SEEDING 5.8 AC IA CS-006
5 MOBILIZATION AND DEMOBILIZATION 1 LS CS-008
6 DRAIN TILE INVESTIGATION AND REMOVAL 2,800 LF IA CS-009
7 EXCAVATION (GENERAL) 904 CY IA CS-021
8 EARTHFILL (GENERAL) 3,680 CY IA CS-023
9 EARTHFILL (GENERAL DAM) 1,358 CY IA CS-023
10 EARTHFILL (DAM CORE) 2,572 CY IA CS-023
11 EARTHFILL (SCARIFY AND RECOMPACT 9" LAYER OF WETLAND BOTTOM (P)) 3,008 CY IA CS-023
12 TOPSOIL PLACEMENT 5,591 CY IA CS-026
13 4' X 4' WATER CONTROL STRUCTURE 1 EA IA CS-031
14 36" RCP DRAWDOWN WETLAND OUTLET PIPE 79 LF IA CS-031
15 4" CORRUGATED PROFILE WALL (NON-PERFORATED SINGLE WALL) POLYETHYLENE PIPE 1,195 LF IA CS-031
16 6" CORRUGATED PROFILE WALL (NON-PERFORATED SINGLE WALL) POLYETHYLENE PIPE 1,455 LF IA CS-046
17 8" CORRUGATED PROFILE WALL (NON-PERFORATED, SINGLE WALL) POLYETHYLENE PIPE 413 LF IA CS-046
18 8" CORRUGATED PROFILE WALL (NON-PERFORATED, DUAL WALL) POLYETHYLENE PIPE 916 LF IA CS-046
19 10" CORRUGATED PROFILE WALL (NON-PERFORATED, DUAL WALL) POLYETHYLENE PIPE 51 LF IA CS-046
20 12" CORRUGATED PROFILE WALL (NON-PERFORATED, DUAL WALL) POLYETHYLENE PIPE 409 LF IA CS-046
21 STOP LOG STORAGE STRUCTURE 1 EA IA CS-046
22 8" CMP TILE OUTLETS (20 LF EACH) 3 EA IA CS-051
23 10" CMP TILE OUTLETS (20 LF EACH) 2 EA IA CS-051
24 12" CMP TILE OUTLETS (20 LF EACH) 1 EA IA CS-051
25 15" CMP TILE OUTLETS (20 LF EACH) 1 EA IA CS-051
26 RIP RAP 245 TON IA CS-061
27 2" CLEAN STONE 30 TON IA CS-061
ITEM # SPEC # DESCRIPTION
1 IA CS-001
SITE STRIPPING & PREPARATION : THIS ITEM WILL CONSIST OF WORK TO REMOVE AND DISPOSE OF EXISTING MATERIAL TO REMOVE VEGETATION ON AREAS TO BE EXCAVATED OR FILLED. TOTAL DEPTH OF VEGETATIVE STRIPPING AND TOPSOIL STRIPPING SHALL EQUAL A COMBINED DEPTH OF 12", WITH THE ESTIMATED AMOUNT OF TOPSOIL REMOVAL BEING 9,724 CUBIC YARDS. THE TOPSOIL REPLACEMENT QUANTITY SHALL BE PAID SEPARATELY. THIS ITEM WILL ALSO INCLUDE ANY TREE AND BRUSH REMOVAL ALONG WITH ANY FENCES.
2 IA CS-001
CROP DAMAGE: THIS ITEM CONSISTS OF CROP DAMAGE THAT RESULTS FROM CONSTRUCTION ACTIVITIES. IT IS RECOMMENDED CONTRACTOR REMOVE CORN RESIDUE RATHER THAN KNOCK IT DOWN.PAYMENT FOR CROP DAMAGE WILL BE MADE TO THE NEAREST 0.1 ACRE AS MEASURED BY THE ENGINEER OR THEIR REPRESENTATIVE. THE UNIT RATE FOR CROP DAMAGE WILL BE DETERMINED BY THE DIVISION NEAR THE COMPLETION OF CONSTRUCTION AND ADDED TO THE CONTRACT WITH A CHANGE ORDER. PAYMENT WILL BE MADE TO
CONTRACTOR WHO WILL PAY LANDOWNER.
3 IA CS-006 STRUCTURE & CHANNEL SEEDINGE: THIS ITEM INCLUDES SEEDING FOR ALL EMBANKENT AND TILE COVER BERM AREAS AND INCLUDES SEEDBED PREP, SEEDING, MULCHING, AND
FERILIZER.
4 IA CS-006 BUFFER SEEDING: THIS ITEM INCLUDES SEEDING FOR ALL AREAS ABOVE NORMAL POOL AND WITHIN EASEMENT BOUNDARY, EXLUDING THOSE AREAS WHERE STUCTURE SEEDING IS
SPECIFIED. SEE SEEDING PLAN. NO MULCH OR FERTLIZER SHALL BE APPLIED.
5 CS-008 MOBILIZATION AND DEMOBILIZATION: THIS ITEM SHALL BE CONSIDERED FULL COMPENSATION TO MOBILIZE AND DEMOBILIZE THE CONTRACTOR'S FORCES AND EQUIPMENT FOR THE PROJECT.ALL OTHER WORK NECESSARY TO COMPLETE THE PROJECT AS REPRESENTED HEREIN BUT NOT INCLUDED IN THE ITEMS LISTED BELOW SHALL BE INCIDENTAL TO THIS ITEM.
6 IA CS-009 DRAIN TILE INVESTIGATION AND REMOVAL: THIS ITEM INCLUDES THE EXPLORATORY EXCAVATIONS REQUIRED TO LOCATE AND REMOVE TILES SHOWN ON THE PLANS. THIS IS FULL
COMPENSATION FOR EXCAVATION, BACKFILLING, AND REMOVAL OF THE TILE TRENCHES.
7 IA CS-021 EXCAVATION (GENERAL): THIS ITEM INCLUDES THE EXCAVATION OF MATERIAL REQUIRED TO CONSTRUCT THE CORE TRENCH BELOW THE EXISTING GROUND LEVEL, AS DETAILED, ALONG THE CENTERLINE OF THE DAM EMBANKMENT AS WELL AS ESTABLISHING POOL FINAL GRADE.
8 IA CS-023
EARTHFILL (GENERAL): THIS ITEM INCLUDES THE AMOUNT OF MATERIAL REQUIRED TO CONSTRUCT THE SUBMERGED BERMS AND ADDITIONAL FILL TO BE PLACED OVER TILE COVER BERMS ALONG WITH TOPSOIL FILL IN AREAS OUTSIDE OF EASEMENT. COHESIVE MATERIAL FOUND DURING GENERAL GRADING AND COMPACTED LINER REMOVAL CAN BE USED FOR THESE AREAS. SAND AND GRAVEL FOUND ON SITE SHALL NOT BE USED FOR THIS EARTHFILL. SEE SHEET C201 AND C202 FOR LIMITS OF EXCAVATION AND ASSOCIATED FILL. THE REQUIRED FILL INCLUDES A 20% SHRINKAGE FACTOR. MEASUREMENT AND PAYMENT FOR PLACEMENT AND COMPACTION OF ALL FILL MATERIAL IS INCLUDED IN THIS ITEM AND WILL BE
PAID BASED ON PLAN QUANTITY.
9 IA CS-023
EARTHFILL (GENERAL DAM): THIS ITEM INCLUDES THE EARTHFILL PLACEMENT AND COMPACTION NECESSARY TO CONSTRUCTION THE PORTION OF THE EMBANKMENT THAT IS NOT THE EMBANKMENT CORE. COHESIVE MATERIAL FOUND DURING GENERAL GRADING AND COMPACTED LINER CAN BE USED FOR THIS AREA. SAND AND GRAVEL FOUND ON SITE SHALL NOT BE USED FOR FILL IN THESE AREAS. SEE SHEET C201 AND C202 FOR LIMITS OF EXCAVATION AND ASSOCIATED FILL. THE REQUIRED FILL INCLUDES A 20% SHRINKAGE FACTOR.
MEASUREMENT AND PAYMENT FOR PLACEMENT AND COMPACTION OF ALL FILL MATERIAL IS INCLUDED IN THIS ITEM AND WILL BE PAID BASED ON PLAN QUANTITY.
10 IA CS-023
EARTHFILL (DAM CORE): THIS ITEM INCLUDES THE EARTHFILL PLACEMENT AND COMPACTION NECESSARY TO CONSTRUCT THE EMABNKMENT CORE WITHIN THE EMBANKMENT, INCLUDING THE CORE TRENCH. COHESIVE MATERIAL TAKEN FROM DESIGNATED BORROW AREA SHOULD BE USED FOR THIS AREA. SAND AND GRAVEL SHALL NOT BE USED FOR THIS AREA. SEE SHEET C201 AND C202 FOR LIMITS OF EXCAVATION AND ASSOCIATED FILL. THE REQUIRED FILL INCLUDES A 20% SHRINKAGE FACTOR. MEASUREMENT AND PAYMENT FOR PLACEMENT AND COMPACTION OF ALL FILL MATERIAL IS INCLUDED IN THIS ITEM AND WILL BE PAID BASED ON PLAN QUANTITY.
11 IA CS-023
EARTHFILL (SCARIFY AND RECOMPACT 9" LAYER OF WETLAND BOTTOM (P)): THIS ITEM INCLUDES SCARIFICATION AND LOOSENING OF A 9 INCH SURFACE LAYER OF SOIL ON THE WETLAND POOL BOTTOM WITHIN THE POOL FOOTPRINT, MOISTURE CONDITIONING, AND COMPACTION OF THE WETLAND BOTTOM TO FORM A SEAL. CONTRACTOR SHALL REMOVE ROCKS LARGER THAN 6 INCHES. NOTIFY ENGINEER IMMEDIATELY IF SANDY SOILS ARE ENCOUNTERED. ITEM WILL BE PAID BASED ON PLAN QUANTITY.
12 IA CS-026
TOPSOIL PLACEMENT: THIS ITEM INCLUDES THE STRIPPING, SALVAGE, AND RE-SPREAD OF 6" OF EXISTING TOPSOIL FROM ALL AREAS WITHIN THE GRADING LIMITS. ALL DISTURBED AREAS SHALL RECEIVED 6" OF TOPSOIL RESPREAD. IN THE BORROW AREA, AN ADDITIONAL 6" (12" TOTAL) WILL BE STRIPPED TO GENERATE TOPOSIL FOR FILL PLACEMENT OUTSIDE OF
THE EASEMENT.
13 IA CS-031 4' X 4' WATER CONTROL STRUCTURE : THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, AND MATERIALS FOR THE PLACEMENT OF THE 48" CONCRETE RISER STRUCTURE, FOOTING, STEEL, STOPLOGS, FABRICATION, PIPE CONNECTIONS, AND TRASH RACK.
14 IA CS-031 36" RCP DRAWDOWN WETLAND OUTLET PIPE: THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, AND MATERIALS REQUIRED FOR THE EXCAVATION, PLACEMENT OF THE REINFORCED
CONCRETE PIPE, SUPPORT BLOCKS, OUTLET CRADLE , ANTI-SEEP COLLARS, AND BACKFILL.
15 IA CS-046 4" CORRUGATED PROFILE WALL (NON-PERFORATED SINGLE WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 4" SINGLE WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.
16 IA CS-046 6" CORRUGATED PROFILE WALL (NON-PERFORATED SINGLE WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 6" SINGLE WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.
17 IA CS-046 8" CORRUGATED PROFILE WALL (NON-PERFORATED, SINGLE WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 8" SINGLE WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.
18 IA CS-046 8" CORRUGATED PROFILE WALL (NON-PERFORATED, DUAL WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 8" DUAL WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.
19 IA CS-046 10" CORRUGATED PROFILE WALL (NON-PERFORATED, DUAL WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 10" DUAL WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.
20 IA CS-046 12" CORRUGATED PROFILE WALL (NON-PERFORATED, DUAL WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 12" DUAL WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.
21 IA CS-046 STOP LOG STORAGE STRUCTURE: THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, AND MATERIALS FOR THE PLACEMENT OF STOPLOGS, STOP LOG REMOVAL TOOLS, AND STOP LOG
STORAGE STUCTURE.
22 IA CS-051 8" CMP TILE OUTLETS (20 LF EACH): THIS ITEM INCLUDES THE COSTS FOR MATERIAL, EXCAVATION, PLACEMENT, JOINTING, BEDDING, RODENT GUARDS, AND BACKFILLING OF THE 20 LF 8" CMP END SECTION FOR THE PROPOSED FIELD TILE OUTLET TO THE WETLAND. 8" CMP OUTLET SECTIONS ARE FOR 6 INCH TILES.
23 IA CS-051 10" CMP TILE OUTLETS (20 LF EACH): THIS ITEM INCLUDES THE COSTS FOR MATERIAL, EXCAVATION, PLACEMENT, JOINTING, BEDDING, RODENT GUARDS, AND BACKFILLING OF THE 20 LF 10" CMP END SECTION FOR THE PROPOSED FIELD TILE OUTLET TO THE WETLAND. 10" CMP OUTLET SECTIONS ARE FOR 8 INCH TILES.
24 IA CS-051 12" CMP TILE OUTLETS (20 LF EACH): THIS ITEM INCLUDES THE COSTS FOR MATERIAL, EXCAVATION, PLACEMENT, JOINTING, BEDDING, RODENT GUARDS, AND BACKFILLING OF THE 20 LF 12" CMP END SECTION FOR THE PROPOSED FIELD TILE OUTLET TO THE WETLAND. 12" CMP OUTLET SECTIONS ARE FOR 10 INCH TILES.
25 IA CS-051 15" CMP TILE OUTLETS (20 LF EACH): THIS ITEM INCLUDES THE COSTS FOR MATERIAL, EXCAVATION, PLACEMENT, JOINTING, BEDDING, RODENT GUARDS, AND BACKFILLING OF THE 20 LF 15" CMP END SECTION FOR THE PROPOSED FIELD TILE OUTLET TO THE WETLAND. 15" CMP OUTLET SECTIONS ARE FOR 12 INCH TILES.
26 IA CS-061 RIP RAP: THIS ITEM INCLUDES THE EXCAVATION AND PLACEMENT OF CLASS 'E' REVETMENT OVER GEOTEXTILE FABRIC AT THE LOCATIONS SHOWN ON THE PLANS. GEOTEXTILE FABRIC IS INCIDENTAL TO THIS ITEM. QUANTITY DETERMINATION IS BASED ON A UNIT WEIGHT OF 105 POUNDS PER CUBIC FOOT. PROVIDE WEIGHT TICKETS TO OWNER'S REPRESENTATIVE.
27 IA CS-061 2" CLEAN STONE': THIS ITEMS INCLUDES PROCUREMENT, PLACEMENT AND SPREADING OF 2 INCH CLEAN STONE AT THE CONSTRUCTION ENTRANCE. QUANTITY DETERMINATION IS
BASED ON A UNIT WEIGHT OF 130 POUNDS PER CUBIC FOOT.
CULTURAL RESOURCES NOTE:
1. IF A CULTURAL RESOURCE IS IDENTIFIED DURING
CONSTRUCTION, STOP IMMEDIATELY AND NOTIFY
LOCAL NATURAL RESOURCES CONSERVATION
SERVICE OFFICE.
PROJECT ID HAR892022C ----- LENGTH OF BERM 575 FEET
LANDOWNER(S) DAVID & MARY JENSEN,
SHOOFLY TRUST ----- AUXILIARY SPILLWAY
ELEVATION 1111.0 FEET
PRELIMINARY OR FINAL
DESIGN FINAL DESIGN ----- AUXILIARY SPILLWAY
WIDTH 150 FEET
DRAINAGE AREA 185.0 ACRES WEIR WIDTH 48" BOX RISER W/ 36" RCP FEET
WETLAND POOL AREA 2.5 ACRES TIME OF CONCENTRATION 0.8 HOURS
DEEP WATER AREA (>3 FT
DEEP) 0.16 ACRES WEIGHTED RUNOFF
CURVE NUMBER 62 -----
NORMAL POOL
ELEVATION 1108.0 FEET 25-YEAR STORM DESIGN
FLOW 144 CFS
AVERAGE POOL DEPTH 1.4 FEET 100-YEAR STORM DESIGN
FLOW 270 CFS
MAXIMUM POOL DEPTH 5.0 FEET 100-YEAR FLOOD SURF.
ELEVATION 1111.14 FEET
POOL STORAGE 3.5 ACRE-FEET ESTIMATED SEDIMENT
STORAGE 145 YEARS
BERM ELEVATION 1113.0 FEET TOTAL EASEMENT AREA 12.29 ACRES
BERM STORAGE 34.9 ACRE-FEET
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SHOOFLY TRUST
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JENSEN,
MARY & DAVID
GRADING LIMITS (TYP.)
EASEMENT BOUNDARY (TYP.)
APPROXIMATE PROPERTY
BOUNDARY (TYP.)
CLEAR VEGETATION AND STRIP TOPSOIL .
RESPREAD TOPSOIL AFTER GRADING IS
COMPLETE. SEE TOPSOIL STRIPPING NOTE.
CONSTRUCTION ENTRANCE
PLACE 20 TONS OF 3" ROADSTONE
AT EXISTING FIELD ENTRANCE
REMOVE EXISTING CONCRETE
DEBRIS, RUBBISH, AND TWO
TREES WITHIN GRADING LIMITS
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SURVEY NOTES:
1. LIMITED TOPOGRAPHIC SURVEY COMPLETED BY SHIVE-HATTERY ENGINEERING ON DECEMBER
6TH, 2022.
2. SUPPLEMENTAL EXISTING SURFACE INFORMATION SHOWN WAS BASED ON LIGHT DETECTION
AND RANGING (LIDAR) INFORMATION FROM IOWA DNR.
3. CONTRACTOR SHALL VERIFY CONTROL AND BASE SURFACE PRIOR TO CONSTRUCTION AND
COORDINATE WITH ENGINEER.
COORDINATE SYSTEM AND DATUM:
HORIZONTAL DATUM - NAD83, IOWA STATE PLANE, SOUTH ZONE
VERTICAL DATUM - NAVD88
NORTH
LEGEND
LINE TYPEDESCRIPTION
GRADING LIMITS
EXISTING FENCE
APPROX. PROPERTY BOUNDARY
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
EASEMENT BOUNDARY
GENERAL NOTES:
1. PROPERTY BOUNDARIES ARE APPROXIMATE AND BASED ON BEACON PROPERTY MAP,
VERIFY PROPERTY BOUNDARIES
REMOVAL NOTES:
1. STRIP, STOCKPILE, AND RESPREAD 12" OF TOPSOIL IN THE EMBANKMENT FOOTPRINT (0.5
ACRES) AND 6" WITHIN ALL OTHER DISTURBED AREAS WITHIN THE EASEMENT BOUNDARY (3.0
ACRES). RESPREAD 12" OF TOPSOIL WITHIN EMBANKMENT FOOTPRINT AND 6" IN ALL OTHER
DISTURBED AREAS.
REMOVE EXISTING
TREES AND DEBRIS
WITHIN GRADING LIMITS
SHOOFLY TRUST
(JENSEN, BILL)
JENSEN,
MARY & DAVID
SHOOFLY TRUST
(JENSEN, BILL)
LOCATE AND REMOVE 984'
OF EXISTING 10" CLAY TILE
LOCATE AND REMOVE 728'
OF EXISTING 4" CLAY TILE
LOCATE AND REMOVE 25'
OF EXISTING 4" CLAY TILE
LOCATE AND REMOVE 25'
OF EXISTING 4" CLAY TILE
LOCATE AND REMOVE 25'
OF EXISTING 5" CLAY TILE
LOCATE AND REMOVE 565'
OF EXISTING 4" CLAY TILE
LOCATE AND REMOVE 25'
OF EXISTING 4" CLAY TILE
LOCATE AND REMOVE 150'
OF EXISTING 8" CLAY TILE
GRADING LIMITS (TYP.)
EASEMENT BOUNDARY (TYP.)
APPROXIMATE PROPERTY
BOUNDARY (TYP.)
LEGEND
LINE TYPEDESCRIPTION
GRADING LIMITS
EXISTING FENCE
APPROX. PROPERTY BOUNDARY
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
EXISTING DRAIN TILE, 4"
EASEMENT BOUNDARY
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TILE INFORMATION
EXISTING TILE INFORMATION IS APPROXIMATE AND WAS PROVIDED BY
THE LANDOWNER.
NORTH
EXISTING DRAIN TILE, 5"
EXISTING DRAIN TILE, 8"
EXISTING DRAIN TILE, 10"
TILE ABANDON
TILE REMOVAL
REMOVAL NOTES:
1. CONTRACTOR SHALL IMMEDIATELY REPORT TO THE ENGINEER
ALL PREVIOUSLY UNKNOWN TILE LINES WITHIN THE PROJECT
AREA. DISCOVERED TILE LINES SHALL REMAIN UNCOVERED FOR
FURTHER EVALUATION.
2. ALL DRAIN TILE FOUND DURING EXCAVATION SHALL BE REMOVED,
EXTENDING 10 FEET BEYOND THE EMBANKMENT FOOTPRINT.
JENSEN,
MARY & DAVID
SHOOFLY TRUST
(JENSEN, BILL)
0+
1+
1+
0+00 1+00 2+00
3+00
4+
5+
6+
CONNECT TO
EXISTING 12" RISER
CONSTRUCTION
ACCESS ROUTE
CONSTRUCTION ENTRANCE, 30
TONS, 2" CLEAN STONE, 6" THICK
LEGEND
LINE TYPEDESCRIPTION
TOP OF DAM ELEVATION
GRADING LIMITS
MAJOR CONTOUR (PROPOSED)
MINOR CONTOUR (PROPOSED)
TILE REMOVAL
APPROX. PROPERTY BOUNDARY
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
NORMAL WATER LEVEL
TILE - ABANDON IN PLACE
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PRINCIPAL SPILLWAY PIPE 79 LF
36" RCP @ 0.90%
ALL FILL PLACED OUTSIDE THE
EASEMENT SHALL BE TOPSOIL.
CONTRACTOR SHALL DISK AREA
PRIOR TOPSOIL PLACEMENT.
8A 8B 8C
1C
1D
1E
1F
1G
3 A
3B
3C
3D
3E
3F
3G
4 A
4B
4C
4D
4E
4F
A
5B
5C
5D 6A
3H
3I
2C
2B
7E
7D
7B
2A
7C
7A
2.5 ACRE WETLAND
NWL = 1108.00
TOP OF DAM
ELEVATION = 1113.00
TOP WIDTH = 16 FEET
12.2 ACRE EASEMENT
GRADING LIMITS (TYP)
SUBMERGED BERMS
TOP WIDTH = 20'
ELEV = 1107.50
SUBMERGED BERMS
TOP WIDTH = 20'
ELEV = 1107.50
PRINCIPAL SPILLWAY
CENTERLINE ALIGNMENT
EMBANKMENT
CENTERLINE ALIGNMENT
TIE IN 429 LF OF 12" HDPE (DUAL
WALL) TO EXISTING 10" TILE
TIE IN 626 LF OF 6" HDPE (SINGLE
WALL) TO EXISTING 4" TILES
TIE IN 453 LF OF 8" HDPE
(SINGLE WALL) TO
EXISTING 4" & 5" TILE
TIE IN 438 LF OF 6" HDPE
TO EXISTING 4" TILES
TIE IN 392 LF OF 6" HDPE
TO EXISTING 4" TILES
TIE IN 71 LF OF 10" HDPE (DUAL
WALL) TO EXISTING 8" TILE
TIE IN 916 LF OF 8" HDPE (SINGLE
WALL) TO EXISTING RISER
100-YR
HWE = 1111.14
BORROW AREA
TIE IN 59 LF OF 6" HDPE
TO EXISTING 4" TILES
EXISTING WATER LEVEL
ELEVATION = 1101.30
15 TONS CLASS E RIP
RAP 2' THICK AT EACH
TILE OUTLET (TYP)
STOPLOG
STRUCTURE
INSTALL 508 LF OF 4" HDPE (SINGLE WALL)
LATERALS AND CONNECT TO PROPOSED 8"
HDPE TILE. 60 FOOT SPACING.
CONTRACTOR SHALL MAINTAIN DRAINAGE
FOR ALL PREVIOUSLY DRAINED AREAS
LOCATED OUTSIDE THE EASEMENT LIMITS.
60.00'
INSTALL 687 LF OF 4" HDPE (SINGLE WALL)
LATERALS AND CONNECT TO PROPOSED 6"
HDPE TILE. 60 FOOT SPACING.
CONTRACTOR SHALL MAINTAIN DRAINAGE
FOR ALL PREVIOUSLY DRAINED AREAS
LOCATED OUTSIDE THE EASEMENT LIMITS.
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Io w a
Il lin oi s
In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
T M E N T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
NORTH
LEGEND
LINE TYPEDESCRIPTION
TOP OF DAM ELEVATION
GRADING LIMITS
MAJOR CONTOUR (PROPOSED)
MINOR CONTOUR (PROPOSED)
TILE REMOVAL
APPROX. PROPERTY BOUNDARY
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
NORMAL WATER LEVEL
TILE - ABANDON IN PLACE
EASEMENT BOUNDARY
NOTES:
1. STRIP, STOCKPILE, AND RESPREAD 12" OF
TOPSOIL IN THE EMBANKMENT FOOTPRINT (0.50
ACRES) AND 6" WITHIN ALL OTHER DISTURBED
AREAS WITHIN THE EASEMENT BOUNDARY (3.0
ACRES). RESPREAD 12" OF TOPSOIL WITHIN
EMBANKMENT FOOTPRINT AND 6" IN ALL OTHER
DISTURBED AREAS WITHIN THE PROPOSED
EASEMENT.
2. MAXIMUM SIDE SLOPES OF ALL EXCAVATED
AREAS TO BE 3:1 OR FLATTER.
3. COMPACTION SHALL BE NRCS IA-23 METHOD 2.
SEE SPECIFICATIONS.
4. NO TILE INVESTIGATION HAS BEEN PERFORMED ,
VERIFY INVERTS DURING CONSTRUCTION.
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
AT
E:
FI
EL
D B
O O
K:
PR
O
JE
C
T N
O
C
LI
EN
T
N O
Pr in te d: C202
G
RA
DI
NG
P
LA
N
AN
I
DJ
J
CO
NS
TR
UC
TI
O
N
DO
CU
M
EN
TS
/2
0/
H
AR
C
SH
O O
FL
Y
JE
N
SE
N
N R
W
ET
LA
N
D
ID
AL
S
HA
RD
IN
C
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, I
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8/
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:2 8:
JENSEN,
MARY & DAVID
0+00
1+00 2+00
3+00
4+
5+
6+
7+
ALL FILL PLACED OUTSIDE THE
EASEMENT SHALL BE TOPSOIL.
CONTRACTOR SHALL DISK AREA
PRIOR TOPSOIL PLACEMENT.
A B C D E F
A B C D E F
W es to w n Pk w y, S ui te
W es t D es
M oi ne s, Io w a
5.
3.
w w w
.s hi ve -h at te ry .c om
Io w a
Il lin oi s
In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
T M E N T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
NORTH
NOTES:
1. EMBANKMENT FILL SHALL BE COMPACTED IN MAXIMUM 6" LIFTS. COMPACTION SHALL UTILIZE NRCS METHOD 2
(SEE IA-23).
2. ALL DISTURBED AREAS REQUIRE 6" OF TOPSOIL STRIP, SALVAGE, AND RESPREAD. TOP SOIL SHALL NOT BE USED
FOR EMBANKMENT FILL. AN ADDITION 6" OF TOPSOIL SHALL BE STRIPPED FROM THE BORROW AREA FOR ALL
PROPOSED FILL PLACED OUTSIDE THE EASEMENT.
3. THE EMBANKMENT SHALL BE OVERBUILT 5% TO ACCOUNT FOR SETTLEMENT. SEE SHEET C301.
4. EARTHWORK SHALL BE BALANCED ON SITE. A 20% SHINKAGE FACTOR WAS USED IN EARTHWORK CALCULATIONS
FOR ESTIMATION PURPOSES.
5. RESERVE SELECT CLAY SOILS FOR CORE TRENCH AND EMBANKMENT CORE FILL.
6. CONTRACTOR IS RESPONSIBLE FOR COMPLIANCE WITH ALL APPLICABLE PERMITS DURING CONSTRUCTION.
ELEVATIONS TABLE
CUT/FILL MINIMUM ELEVATION (FT.) MAXIMUM ELEVATION (FT.) COLOR
CUT -5.0 -4.0
CUT -4.0 -3.0
CUT -3.0 -2.0
CUT -2.0 -1.0
CUT -1.0 0.0
FILL 0.0 1.0
FILL 1.0 2.0
FILL 2.0 3.0
FILL 3.0 4.0
FILL 4.0 5.0
FILL 5.0 6.0
FILL 6.0 7.0
FILL 7.0 8.0
FILL 8.0 9.0
BORROW AREA
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
AT
E:
FI
EL
D B
O O
K:
PR
O
JE
C
T N
O
C
LI
EN
T
N O
Pr in te d: C203
CU
T-
FI
LL
P
LA
N
AN
I
DJ
J
CO
NS
TR
UC
TI
O
N
DO
CU
M
EN
TS
/2
0/
H
AR
C
SH
O O
FL
Y
JE
N
SE
N
N R
W
ET
LA
N
D
ID
AL
S
HA
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/2
:2 8:
A
M
EARTHWORK TABLE
CLASSIFICATION CY
EXCAVATION (GENERAL) 904
EARTHFILL (GENERAL) 3,680
EARTHFILL (GENERAL DAM) 1,358
EARTHFILL (DAM CORE) 2,572
0+
1+
2+
3+00
4+00
5+00
0+
1+
3:1 3:1
1+00
2+00
3+00
4+00
4+50
1+
1+
PRINCIPAL SPILLWAY PIPE
36" RCP 78 LF
IE = 1103.0
IE = 1102.3
STOPLOG
STRUCTURE
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 5+00.00
-2.76%
0.00% 0.09%
0.00% -8.00%
PVI STA: 0+30.33
PVI ELEV: 1114.00 PVI STA: 0+66.62
PVI ELEV: 1113.00
PVI STA: 4+31.42
PVI ELEV: 1111.00
PVI STA: 4+84.93
PVI ELEV: 1111.05
PVI STA: 3+81.42
PVI ELEV: 1113.00
PVI STA: 4+06.42
PVI ELEV: 1111.00
-1
.0 0%
7.50%
10.50%
1.50%
0.
-8.50%
-4.50%
0.00% 1.50%
PVI STA: 0+65.95
PVI ELEV: 1110.80
PVI STA: 0+71.63
PVI ELEV: 1105.12
PVI STA: 3+07.94
PVI ELEV: 1102.03
PVI STA: 3+31.15
PVI ELEV: 1104.46
PVI STA: 3+75.59
PVI ELEV: 1105.13
PVI STA: 3+80.95
PVI ELEV: 1110.49
PVI STA: 1+03.93
PVI ELEV: 1102.37
PVI STA: 1+68.37
PVI ELEV: 1099.47 PVI STA: 2+27.85
PVI ELEV: 1099.47
PVI STA: 2+85.40
PVI ELEV: 1100.34
36" RCP
NORMAL WATER LEVEL
ELEVATION = 1108.00
AUXILIARY SPILLWAY
CREST = 1111.00
CORE TRENCH EXCAVATION
- SEE DETAIL
PROPOSED TOP OF DAM CONSTRUCTION
GRADE = 1113.00
OVERBUILD TO 1113.50 TO ACCOMMODATE
FOR FUTURE SETTLEMENT
A B C D E F
A B C D E F
W es to w n Pk w y, S ui te
W es t D es
M oi ne s, Io w a
5.
3.
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.s hi ve -h at te ry .c om
Io w a
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In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
T M E N T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
HORIZONTAL SCALE
VERTICAL SCALE
NORTH
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
AT
E:
FI
EL
D B
O O
K:
PR
O
JE
C
T N
O
C
LI
EN
T
N O
Pr in te d: C301
EM
BA
NK
M
EN
T
PL
AN
PR
O
FI
LE
--- --- CO
NS
TR
UC
TI
O N
DO
CU
M
EN
TS
/2
0/
H
AR
C
SH
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FL
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2+
3:1
4+
4+
0+00
1+00
1+60
70 TONS CLASS
'E' RIPRAP
PRECAST 4 X 4 (OPEN
DIMENSIONS) CONCRETE
RISER WITH FRONT FACING
STOP LOGS, SEE DETAIL
CUT IN CHANNEL FOR
DRAWDOWN
70 TONS CLASS E RIP RAP OVER
GEOTEXTILE FABRIC. MAINTAIN
DRAWDOWN CHANNEL AT 1103.50
PRINCIPAL SPILLWAY PIPE
36" RCP 78 LF
IE = 1103.0
IE = 1102.3
STOPLOG STRUCTURE
0+00.00 1+00.00 1+60.00
PROPOSED GRADE
EXISTING GRADE
PRINCIPAL SPILLWAY PIPE 79 LF
36" RCP @ 0.90%
70 TONS OF CLASS 'E' RIP RAP OVER
GEOTEXTILE, 2 FEET THICK.
16.00'
TOP WIDTH
TOP OF DAM
ELEVATION = 1113.00
2.0%
10' WIDE BENCH
NORMAL WATER LEVEL
ELEVATION = 1108.00
EXISTING POND WATER LEVEL
ELEVATION = 1101.30
6' X 6' ANTI-SEEP COLLAR
SPACING = 20'
- SEE DETAIL
IE = 1103.0
IE = 1102.3
GALVANIZED TRASH RACK
- SEE DETAIL
PRECAST 4 X 4 CONCRETE
RISER WITH FRONT FACING
STOP LOGS, SEE DETAIL
7X7 REINFORCED CONCRETE BASE.
- SEE DETAIL
AUXILIARY SPILLWAY
ELEVATION = 1111.00
PROPOSED GRADE AT DRAWDOWN CHANNEL
ALL OTHER AREA 3 TO 1 SLOPE
70 TONS CLASS E RIP RAP OVER
GEOTEXTILE 2 FEET THICK
A B C D E F
A B C D E F
W es to w n Pk w y, S ui te
W es t D es
M oi ne s, Io w a
5.
3.
w w w
.s hi ve -h at te ry .c om
Io w a
Il lin oi s
In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
T M E N T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
HORIZONTAL SCALE
VERTICAL SCALE
N O
R
TH
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
AT
E:
FI
EL
D B
O O
K:
PR
O
JE
C
T N
O
C
LI
EN
T
N O
Pr in te d: C302
PR
IN
CI
PA
L
SP
IL
LW
AY
P
LA
N
PR
O
FI
LE
AN
I
DJ
J
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TR
UC
TI
O
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DO
CU
M
EN
TS
/2
0/
H
AR
C
SH
O O
FL
Y
JE
N
SE
N
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W
ET
LA
N
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ID
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S
HA
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C
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TY
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FI
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.d wg
8/
/2
:2 8:
0+00 1+00 2+00 3+00 4+00 5+00
6+00 7+00 8+
9+00 9+50
1A 394 LF
8" HDPE (DUAL WALL) @ 0.86%
1B 5 LF
8" HDPE (DUAL WALL) @ 0.83%
1C 333 LF8" HDPE (DUAL WALL) @ 0.83%
1D 34 LF
8" HDPE (DUAL WALL) @ 0.83%
1E 61 LF
8" HDPE (DUAL WALL) @ 0.83%
1F 33 LF
8" HDPE (DUAL WALL) @ 0.83%
1G 56 LF
8" HDPE (DUAL WALL) @ 0.83%
20 LF 10" CMP OUTLET
IE = 1109.00
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 5+00.00 6+00.00 7+00.00 8+00.00 9+00.00 9+50.00
1A 394 LF
8" HDPE (DUAL WALL) @ 0.86% 1B 5 LF
8" HDPE (DUAL WALL) @ 0.83% 1C 333 LF
8" HDPE (DUAL WALL) @ 0.83%
1E 61 LF
8" HDPE (DUAL WALL) @ 0.83%
1F 33 LF
8" HDPE (DUAL WALL) @ 0.83%
1D 34 LF
8" HDPE (DUAL WALL) @ 0.83%
1G 56 LF
8" HDPE (DUAL WALL) @ 0.83%
20 LF 10" CMP OUTLET
IE = 1109.00
0+00
1+00
2+00
3+00
4+00
5+
2C 100 LF
12" HDPE (DUAL WALL) @ 0.23%
2A 26 LF
12" HDPE (DUAL WALL) @ 0.23%
2B 303 LF
12" HDPE (DUAL WALL) @ 0.23%
20 LF 15" CMP OUTLET
IE = 1109.00
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 5+00.00
-0.23%
-25.00%
2A 26 LF
12" HDPE (DUAL WALL) @ 0.23%
2B 303 LF
12" HDPE (DUAL WALL) @ 0.23%
2C 100 LF
12" HDPE (DUAL WALL) @ 0.23%
20 LF 15" CMP OUTLET
IE = 1109.00
A B C D E F
A B C D E F
W es to w n Pk w y, S ui te
W es t D es
M oi ne s, Io w a
5.
3.
w w w
.s hi ve -h at te ry .c om
Io w a
Il lin oi s
In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
TM
E NT O F
A G R I C U L T U R E
L A
ND
S
TEWARDSHIP
HORIZONTAL SCALE
VERTICAL SCALE
N O
R
TH
NO
RT
H
HORIZONTAL SCALE
VERTICAL SCALE
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
AT
E:
FI
EL
D B
O O
K:
PR
O
JE
C
T N
O
C
LI
EN
T
N O
Pr in te d: C303
PR
O
PO
SE
D
TI
LE
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AN
A
ND
P
RO
FI
LE
AN
I
DJ
J
CO
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TR
UC
TI
O
N
DO
CU
M
EN
TS
/2
0/
H
AR
C
SH
O O
FL
Y
JE
N
SE
N
N R
W
ET
LA
N
D
ID
AL
S
HA
RD
IN
C
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TY
, I
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DM
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PR
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PO
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D
TI
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P
LA
N
AN
D
PR
O
FI
LE
.d wg 8/
/2
:2
8:
4+
0+
1+
2+00
3+00
4+00
4+75
4+
4+
3+00
4+00
4A 7 LF
8" HDPE (SINGLE WALL) @ 0.36%
4B 121 LF
8" HDPE (SINGLE WALL) @ 0.37%
4C 6 LF
8" HDPE (SINGLE WALL) @ 0.36%
4D 102 LF
8" HDPE (SINGLE WALL) @ 0.37%
4E 3 LF
8" HDPE (SINGLE WALL) @ 0.35%
4F 214 LF
8" HDPE (SINGLE WALL) @ 0.20%
5D 151 LF
6" HDPE (SINGLE WALL) @ 0.43%
20 LF 10" CMP OUTLET
IE = 1109.00
20 LF 8" CMP OUTLET
IE = 1109.00
7B 73 LF
6" HDPE (SINGLE WALL) @ 5.22%
7C 92 LF
6" HDPE (SINGLE WALL) @ 1.36%
6" HDPE (SINGLE WALL) @ 2.17%
7A 18 LF
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 4+75.00
4A 7 LF
8" HDPE (SINGLE WALL) @ 0.36%
4B 121 LF
8" HDPE (SINGLE WALL) @ 0.37%
4C 6 LF
8" HDPE (SINGLE WALL) @ 0.36%
4D 102 LF
8" HDPE (SINGLE WALL) @ 0.37%
4E 3 LF
8" HDPE (SINGLE WALL) @ 0.35%
4F 214 LF
8" HDPE (SINGLE WALL) @ 0.20%
20 LF 10" CMP OUTLET
IE = 1109.00
4+
0+
1+00
2+00
3+00 4+00
5+00
6+00
6+50
3A 4 LF
6" HDPE (SINGLE WALL) @ 0.46%
3B 61 LF
6" HDPE (SINGLE WALL) @ 0.46%
3C 63 LF
6" HDPE (SINGLE WALL) @ 0.46%
3D 69 LF
6" HDPE (SINGLE WALL) @ 0.46%
3E 73 LF
6" HDPE (SINGLE WALL) @ 0.46%
3F 72 LF
6" HDPE (SINGLE WALL) @ 0.46%
3G 5 LF
6" HDPE (SINGLE WALL) @ 0.46%
3H 134 LF
6" HDPE (SINGLE WALL) @ 0.32%
3I 145 LF
6" HDPE (SINGLE WALL) @ 0.33% 20 LF 8" CMP OUTLET
IE = 1109.00
20 LF 10" CMP OUTLET
IE = 1109.00
20 LF 8" CMP OUTLET
IE = 1109.00
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 5+00.00 6+00.00 6+50.00
-25.00%
-0.35%
3I 145 LF
6" HDPE (SINGLE WALL) @ 0.33%
3H 134 LF
6" HDPE (SINGLE WALL) @ 0.32%
3G 5 LF
6" HDPE (SINGLE WALL) @ 0.46%
3F 72 LF
6" HDPE (SINGLE WALL) @ 0.46%
3E 73 LF
6" HDPE (SINGLE WALL) @ 0.46%
3D 69 LF
6" HDPE (SINGLE WALL) @ 0.46%
3C 63 LF
6" HDPE (SINGLE WALL) @ 0.46%
3B 61 LF
6" HDPE (SINGLE WALL) @ 0.46%
3A 4 LF
6" HDPE (SINGLE WALL) @ 0.46%
20 LF 8" CMP OUTLET
IE = 1109.00
A B C D E F
A B C D E F
W es to w n Pk w y, S ui te
W es t D es
M oi ne s, Io w a
5.
3.
w w w
.s hi ve -h at te ry .c om
Io w a
Il lin oi s
In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
TM
E NT O F
A G R I C U L T U R E
L A
ND
S
TEWARDSHIP
HORIZONTAL SCALE
VERTICAL SCALE
NORTH
NORTH
HORIZONTAL SCALE
VERTICAL SCALE
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
AT
E:
FI
EL
D B
O O
K:
PR
O
JE
C
T N
O
C
LI
EN
T
N O
Pr in te d: C304
PR
O
PO
SE
D
TI
LE
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AN
A
ND
P
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AN
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DJ
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CO
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TR
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TI
O
N
DO
CU
M
EN
TS
/2
0/
H
AR
C
SH
O O
FL
Y
JE
N
SE
N
N R
W
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LA
N
D
ID
AL
S
HA
RD
IN
C
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TY
, I
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P:
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DM
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PR
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TI
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P
LA
N
AN
D
PR
O
FI
LE
.d wg 8/
/2
:2
8:
1+00
2+00
0+00 0+75
1+002+00
6" HDPE (SING
LE W
ALL) @
0.50%
5C 143 LF
6" HDPE (SINGLE WALL) @ 0.46%
6A 59 LF
6" HDPE (SINGLE WALL) @ 1.15%
6" HDPE (SINGLE WALL) @ 1.36%
7D 164 LF
6" HDPE (SINGLE WALL) @ 2.17%
7E 45 LF
6" HDPE (SINGLE WALL) @ 1.51%
0+00.00 0+75.00
6A 59 LF
6" HDPE (SINGLE WALL) @ 1.15%
4+
0+
1+00
2+00
3+00 4+00 4+50
0+
0+
6+
5A 2 LF
6" HDPE (SINGLE WALL) @ 0.48%
5B 142 LF
6" HDPE (SINGLE WALL) @ 0.50%
5C 143 LF
6" HDPE (SINGLE WALL) @ 0.46%
5D 151 LF
6" HDPE (SINGLE WALL) @ 0.43%
6A 59 LF
6" HDPE (SINGLE WALL) @ 1.15%
20 LF 8" CMP OUTLET
IE = 1109.00
20 LF 8" CMP OUTLET
IE = 1109.00
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 4+50.00
-25.00%
-0.44%
5A 2 LF
6" HDPE (SINGLE WALL) @ 0.48%
5B 142 LF
6" HDPE (SINGLE WALL) @ 0.50% 5C 143 LF
6" HDPE (SINGLE WALL) @ 0.46% 5D 151 LF
6" HDPE (SINGLE WALL) @ 0.43%
20 LF 8" CMP OUTLET
IE = 1109.00
A B C D E F
A B C D E F
W es to w n Pk w y, S ui te
W es t D es
M oi ne s, Io w a
5.
3.
w w w
.s hi ve -h at te ry .c om
Io w a
Il lin oi s
In di an a
N eb ra sk a
W is co ns in
IOWA D
EP
A R
TM
E NT O F
A G R I C U L T U R E
L A
ND
S
TEWARDSHIP
HORIZONTAL SCALE
VERTICAL SCALE
NORTH
NORTH
HORIZONTAL SCALE
VERTICAL SCALE
D R
AW
N
AP
PR
O
VE
D
IS
SU
ED
F
O R
D
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.d wg 8/
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8:
4+
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2+00
3+00
4+00 4+501+
5C 143 LF
6" HDPE (SINGLE WALL) @ 0.46%
7B 73 LF
6" HDPE (SINGLE WALL) @ 5.22%
7C 92 LF
6" HDPE (SINGLE WALL) @ 1.36%
7D 164 LF
6" HDPE (SINGLE WALL) @ 2.17%
7E 45 LF
6" HDPE (SINGLE WALL) @ 1.51%
7A 18 LF
6" HDPE (SINGLE WALL) @ 0.80%
20 LF 8" CMP OUTLET
IE = 1102.00
0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 4+50.00
7B 73 LF
6" HDPE (SINGLE WALL) @ 5.22%
7D 164 LF6" HDPE (SINGLE WALL) @ 2.17%
7E 45 LF6" HDPE (SINGLE WALL) @ 1.51%
7A 18 LF
6" HDPE (SINGLE WALL) @ 0.80%
7C 92 LF6" HDPE (SINGLE WALL) @ 1.36%
20 LF 8" CMP OUTLET
IE = 1102.00
0+00.00 1+00.00
8A 8 LF
10" HDPE (DUAL WALL) @ 0.62%
8B 17 LF
10" HDPE (DUAL WALL) @ 0.63%
8C 46 LF
10" HDPE (DUAL WALL) @ 0.62%
20 LF 12" CMP OUTLET
IE = 1109.00
0+00
1+00
0+00
1+00
3:
3:
0+
8A 8 LF
10" HDPE (DUAL WALL) @ 0.62% 8B 17 LF
10" HDPE (DUAL WALL) @ 0.63%
8C 46 LF
10" HDPE (DUAL WALL) @ 0.62%
20 LF 12" CMP OUTLET
IE = 1109.00
A B C D E F
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TEWARDSHIP
HORIZONTAL SCALE
VERTICAL SCALE
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A M
HORIZONTAL SCALE
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0+00
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10" HDPE @ 0.63%
8C 46 LF
10" HDPE @ 0.62%
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0+00.00 1+00.00
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10" HDPE @ 0.62%
8B 17 LF
10" HDPE @ 0.63%
8C 46 LF
10" HDPE @ 0.62%
20 LF 12" CMP OUTLET
IE = 1109.00
A B C D E F
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1.5
1 1
8'
MIN.
1.5
5' M
IN
CORE TRENCH
SEE PROFILE VIEW ON SHEET C301
BACKFILL WITH COMPACTED IMPERVIOUS FILL
NOTE:
ALL DRAIN TILE IDENTIFIED DURING CORE TRENCH
EXCAVATION TO BE RECORDED. REMOVE DRAIN TILES IN
THEIR ENTIRETY FROM EMBANKMENT FOOTPRINT
A4 TYPICAL CORE…
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