6-26-02_CAL883229N & BS _FinalPlans_1-10-2025.pdf
PDF 16 MB Posted
- Attached to
- Cal883229BN & BS (Calhoun)
- Solicitation number
- 0009-RFB-WRBLW-CY26-02
- Issued by
- Carroll County, Iowa
About this file
Final Plans and Bid Documents for Pumped Wetlands Construction in Rockwell City, Iowa
This document set consists of final construction plans and specifications prepared by Shive-Hattery, Inc. for the Iowa Department of Agriculture and Land Stewardship's Division of Soil Conservation and Water Quality for two pumped nutrient reduction wetlands projects (Cal883229B North and South) located in Calhoun County near Rockwell City, Iowa. The North wetland project involves construction of a 7.35-acre pool with dual pump stations, requiring approximately 7,232 cubic yards of excavation and 6,761 cubic yards of general earthfill, plus 11,887 cubic yards of clay liner material, 5,322 cubic yards of topsoil placement, and 1.9 acres of structure seeding and 15.7 acres of buffer seeding. The South wetland project involves construction of a 4.65-acre pool with a single pump station, requiring approximately 1,056 cubic yards of excavation, 1,355 cubic yards of earthfill and dam materials, 1,220 cubic yards of clay liner material, and seeding of 0.4 acres of structure areas and 0.6 acres of buffer. Both projects include installation of water control structures with 48-inch corrugated metal risers, drawdown pipes, gravity intake pipes from Lake Creek, solar-powered submersible pump systems with variable frequency drives, 8-inch schedule 80 PVC forcemains, riprap placement, silt fence pollution control, and related appurtenances. Construction must commence within 14 days of the preconstruction meeting, with a deadline of December 31, 2026, and seeding deadlines of May 15, 2027 for structures and June 30, 2027 for buffer areas.
The plans specify that both pump stations utilize photovoltaic solar panels with lithium battery storage systems to power submersible axial-flow pumps with design capacities of 1.6 cubic feet per second at 14.5 feet of total dynamic head for the North site and 1.7 cubic feet per second at 12.8 feet of head for the South site, each capable of pumping 600,000 to 700,000 gallons daily and 300,000 to 360,000 gallons daily respectively. All work is subject to NRCS standards and requirements, with construction survey staking provided by the owner at no additional cost to the contractor. The contractor is responsible for all construction dewatering, proper disposal of debris and trash, replacement of damaged property and facilities, and re-seeding of all disturbed areas. A 20 percent shrinkage factor has been incorporated into earthwork estimates, and contractors must comply with Iowa Code 480 for underground facility notification. The project site is located at 2579 Preston Avenue, Rockwell City, Iowa, with the North construction entrance and South construction entrance marked on the plans, and landowner easements involving Joel Wuebker and Calhoun County Conservation. The plans note that neither Shive-Hattery nor IDALS guarantee the wetlands will maintain a permanent pool of water.
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STATE OF IOWA
ROCKWELL CITY, IOWA
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:
2579 PRESTON AVE
ROCKWELL CITY, IA, 50579
CONTACT INFORMATION:
IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP
MIKE BOURLAND
502 E 9TH ST
DES MOINES, IA, 50319
OFFICE PH: (515) 242-6130
MIKE.BOURLAND@IOWAAGRICULTURE.GOV
CAL883229B PUMPED WETLANDS
IDALS
PROJECT
LOCATION
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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 'C' SHEETS
DANIEL JENSEN
25063
CIVIL ENGINEER
NRCS NEM PART 505 CERTIFICATION
THE SIGNING PROFESSIONALS HEREBY
CERTIFY THAT, TO THE BEST OF THEIR
PROFESSIONAL KNOWLEDGE,
JUDGEMENT, AND BELIEF, THESE PLANS
MEET APPLICABLE NRCS STANDARDS.
I O
W A D E P A R T M E NT O F
AGR
I C U L T UR E & L A N D S T EWA R D
SH
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PROJECT
LOCATION
CALHOUN COUNTY
NORTH CONSTRUCTION
ENTRANCE
LANDOWNERS
JOEL WUEBKER
2588 QUINTON AVE
ROCKWELL CITY, IA 50579
PH: (712) 297-8609
LOHRVILLE
ROCKWELL CITY
POMEROY
MANSON
FARNHAMVILLE
LAKE CITY
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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 'E' SHEETS
KEVIN J. BRUXVOORT
19927
ELECTRICAL ENGINEER
NORTH WETLAND
PROJECT EASEMENT
LANDOWNER: JOEL WUEBKER
CALHOUN COUNTY CONSERVATION
CURTIS VANDERHEIDEN
1228 HIGH ST
ROCKWELL CITY, IA, 50579
OFFICE PH: (712) 297-7131
CONSERVATION@CALHOHNCOUNTY.IOWA.GOV
SOUTH WETLAND
PROJECT EASEMENT
LANDOWNER: CALHOUN
COUNTY CONSERVATION
Sheet List Table Sheet Number Sheet Title
C000 COVER SHEET
C001 PROJECT QUANTITIES
C002 PROJECT NOTES
CD01 EXISTING CONDITIONS AND REMOVALS
C101 NORTH WETLAND GRADING PLAN
C102 NORTH WETLAND CUT-FILL PLAN
C103 NORTH WETLAND DRAWDOWN PLAN AND PROFILE
C104 NORTH WETLAND PUMP STATION 1 PLAN AND PROFILE
C105 NORTH WETLAND PUMP STATION 2 PLAN AND PROFILE
C106 NORTH SEEDING PLAN
C201 SOUTH WETLAND GRADING PLAN
C202 SOUTH WETLAND CUT-FILL PLAN
C203 SOUTH EMBANKMENT PLAN AND PROFILE
C204 SOUTH WETLAND DRAWDOWN PLAN AND PROFILE
C205 SOUTH WETLAND PUMP STATION PLAN AND PROFILE
C206 SOUTH SEEDING PLAN
C301 CONSTRUCTION DETAILS
C302 CONSTRUCTION DETAILS
C303 CONSTRUCTION DETAILS
C304 NORTH WETLAND DUPLEX PUMP DETAILS
C305 SOUTH WETLAND SIMPLEX PUMP DETAILS
E101 NORTH WETLAND PUMP STATION
E102 SOUTH WETLAND PUMP STATION
NORTH WETLAND
PROJECT EASEMENT
LANDOWNER: CALHOUN COUNTY
CONSERVATION
THE ENGINEERING JOB CLASS IS IV
SOUTH CONSTRUCTION
ENTRANCE
04-03-2026
04-03-2026
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ESTIMATED QUANTITIES:
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 NOR IDALS GUARANTEE THIS PRACTICE WILL
HOLD A PERMANENT POOL OF WATER.
CULTURAL RESOURCES NOTE:
1. IF A CULTURAL RESOURCE IS IDENTIFIED
DURING CONSTRUCTION, STOP IMMEDIATELY
AND NOTIFY LOCAL NATURAL RESOURCES
CONSERVATION SERVICE OFFICE.
NORTH WETLAND DESIGN DATA:
PROJECT ID CAL883229B (NORTH) -----
LANDOWNER(S) JOEL WUEBKER & CALHOHN COUNTY CONSERVATION -----
PRELIMINARY OR FINAL DESIGN FINAL -----
DRAINAGE AREA 34,496 (DRAINAGE DITCH) 32.6 (OVERLAND FLOW) ACRES
WETLAND POOL AREA 7.35 ACRES
DEEP WATER AREA (>3 FT DEEP) 0.05 ACRES
NORMAL POOL ELEVATION 1186.00 FEET
AVERAGE POOL DEPTH 0.85 FEET
MAXIMUM POOL DEPTH 2.2 FEET
POOL STORAGE 6.17 ACRE-FEET
BERM ELEVATION N/A FEET
BERM STORAGE N/A ACRE-FEET
LENGTH OF BERM N/A FEET
AUXILIARY SPILLWAY ELEVATION N/A FEET
AUXILIARY SPILLWAY WIDTH N/A FEET
WEIR WIDTH N/A FEET
DROP HEIGHT N/A FEET
TIME OF CONCENTRATION 0.179 HOURS
WEIGHTED RUNOFF CURVE NUMBER 85 -----
5-YEAR STORM DESIGN FLOW 112.04 CFS
5-YEAR FLOOD SURF. ELEVATION 1186.81 FEET
25-YEAR STORM DESIGN FLOW 191.27 CFS
25-YEAR FLOOD SURF. ELEVATION 1186.97 FEET
100-YEAR STORM DESIGN FLOW 280.62 CFS
100-YEAR FLOOD SURF. ELEVATION 1187.09 FEET
TOTAL EASEMENT AREA 24.04 ACRES
PUMP INFORMATION
TOTAL DYNAMIC HEAD 14.5 FEET
DESIGN MAXIMUM DISCHARGE 3.2 CFS (Two Pumps) CFS
DESIGN DAILY FLOW VOLUME 600,000 - 700,00 GAL/DAY
# ITEM DESCRIPTION NORTH SITE
QUANTITY
SOUTH SITE
QUANTITY TOTAL QUANTITY UNITS
1 SITE STRIPPING & PREPARATION 1 1 1 LS
2 CROP DAMAGE 0 0 0 AC
3 STRUCTURE & CHANNEL SEEDING 1.5 0.4 1.9 AC
4 BUFFER SEEDING 15.1 0.6 15.7 AC
5 MOBILIZATION AND DEMOBILIZATION 1 1 1 LS
6 DRAIN TILE INVESTIGATION AND REMOVAL 2270 65 2335 LF
7 EXCAVATION (GENERAL (P)) 6176 1056 7232 CY
8 EARTHFILL (GENERAL (P)) 6176 585 6761 CY
9 EARTHFILL (GENERAL DAM (P)) 0 579 579 CY
10 EARTHFILL (DAM CORE (P)) 0 191 191 CY
11 EARTHFILL (18" CLAY LINER, WETLAND BOTTOM, TWO 9" LIFTS (P)): 9841 2046 11887 CY
12 EARTHFILL (SCARIFY AND RECOMPACT 9" LAYER OF WETLAND BOTTOM (P)): 4494 4607 9101 CY
13 TOPSOIL PLACEMENT, 6 INCH 4535 787 5322 CY
14 TOPSOIL PLACEMENT, 12 INCH 0 433 433 CY
15 8" PVC PIPE, SCHEDULE 80, FORECMAIN 92 27 119 LF
16 4" PERFORATED POLYETHYLENE PIPE WITH POROUS BACKFILL, SINGLE WALL 279 0 279 LF
17 6" NON-PERFORTATED POLYETHYLENE PIPE, SINGLE WALL 187 0 187 LF
18 24" SDR 26 PVC 367 210 577 LF
19 24" RISER INLET STRUCTURE 1 1 2 EA
20 48" CMP WATER CONTROL STRUCTURE 1 1 2 EA
21 18" ALUMINIZED CMP WETLAND DRAWDOWN PIPE, 14GA 177 114 291 LF
22 8" CMP TILE OUTLETS (20 LF EACH) 2 0 2 EA
23 RIP RAP, CLASS E 150 150 300 TON
24 1" CLEAN STONE 150 70 220 TON
25 2" CLEAN STONE 30 30 60 TON
26 POLLUTION CONTROL, SILT FENCE 472 304 776 LF
27 POLLUTION CONTROL, TYPE 2B RECP 560 395 955 SY
28 SOLAR, BATTERY, ELECTRICAL AND CONTROLS (COMPLETE SYSTEM) 2 1 3 LS
29 PUMP STATION (PUMP, CONTROLS, ELECTRICAL, STRUCTURE, APPURENTANCES (COMPLETE SYSTEM)) 2 1 3 LS
SOUTH WETLAND DESIGN DATA:
PROJECT ID CAL883229B (SOUTH) -----
LANDOWNER(S) CALHOUN COUNTY CONSERVATION -----
PRELIMINARY OR FINAL DESIGN FINAL -----
DRAINAGE AREA 10,560 (DRAINAGE DTICH) 9.8 (OVERLAND FLOW) ACRES
WETLAND POOL AREA 4.65 ACRES
DEEP WATER AREA (>3 FT DEEP) 0.09 ACRES
NORMAL POOL ELEVATION 1186.00 FEET
AVERAGE POOL DEPTH 0.63 FEET
MAXIMUM POOL DEPTH 3.0 FEET
POOL STORAGE 2.71 ACRE-FEET
BERM ELEVATION 1187 FEET
BERM STORAGE 8.78 ACRE-FEET
LENGTH OF BERM 305 FEET
AUXILIARY SPILLWAY ELEVATION N/A FEET
AUXILIARY SPILLWAY WIDTH N/A FEET
WEIR WIDTH N/A FEET
DROP HEIGHT N/A FEET
TIME OF CONCENTRATION 0.083 HOURS
WEIGHTED RUNOFF CURVE NUMBER 85 -----
2-YEAR STORM DESIGN FLOW 31.32 CFS
2-YEAR FLOOD SURF. ELEVATION 1186.33 FEET
25-YEAR STORM DESIGN FLOW 72.07 CFS
25-YEAR FLOOD SURF. ELEVATION 1186.56 FEET
100-YEAR STORM DESIGN FLOW 105.13 CFS
100-YEAR FLOOD SURF. ELEVATION 1186.71 FEET
TOTAL EASEMENT AREA 8.83 ACRES
PUMP INFORMATION
TOTAL DYNAMIC HEAD 12.8 FEET
DESIGN MAXIMUM DISCHARGE 1.7 CFS (One Pump) CFS
DESIGN DAILY FLOW VOLUME 300,000 - 360,000 GAL/DAY
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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 NOR IDALS GUARANTEE THIS PRACTICE WILL
HOLD A PERMANENT POOL OF WATER.
CULTURAL RESOURCES NOTE:
1. IF A CULTURAL RESOURCE IS IDENTIFIED
DURING CONSTRUCTION, STOP IMMEDIATELY
AND NOTIFY LOCAL NATURAL RESOURCES
CONSERVATION SERVICE OFFICE.
ESTIMATE REFERENCE NOTES:
ITEM # SPEC # DESCRIPTION
1 IA CS-001 SITE STRIPPING & PREPARATION : THIS ITEM WILL CONSIST OF WORK TO REMOVE AND DISPOSE OF EXISTING MATERIAL OR WASTE ONE SITE AND TO 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". 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 SEEDING: THIS ITEM INCLUDES SEEDING AND RELATED ACTIVITIES FOR STUCTURE SEEDING AREAS AS SHOWN ON THE PLANS. INCLUDES SEEDBED PREP, SEEDING, STRAW MULCH, AND FERTILIZER.
4 IA CS-006 BUFFER SEEDING: THIS ITEM INCLUDES SEEDING AND RETAED ACTVITIES FOR BUFFER SEEDING AREAS AS SHOWN ON THE PLANS. NO MULCH OR FERTILIZER 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. THIS ITEM SHALL INCLUDE ALL LABOR, MATERIALS, EQUIPMENT AND IOWA ONE CALL NOTIFICATIONS TO INSTALL SIGN PROVIDED BY IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP IN AND OWNER APPROVED LOCATION.
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. CONTRACTOR SHALL PROVIDE DOCUMENTATION
FOR ALL TILE LOCATED AND REMOVED.
7 IA CS-021
EXCAVATION (GENERAL (P)): THIS ITEM INCLUDES THE EXCAVATION OF MATERIAL REQUIRED TO FORM THE WETLAND POOL, EXCAVATION OF THE CORE TRENCH BELOW THE EXISTING GROUND LEVEL, AS DETAILED, AND EXCAVATION FOR BORROW MATERIAL FOR PUMP EQUIPMENT PADS. COHESIVE MATERIAL FOUND DURING GENERAL GRADING MUST BE RESERVED FOR WETLAND CLAY LINER CONSTRUCTION, CORE TRENCH FILL, AND THE DAM CORE. SAND AND GRAVEL FOUND ON SITE SHALL NOT BE USED FOR THIS EARTHFILL WITHIN THE WETLAND AND MUST BE WASTED IN THE AREAS SHOWN ON THE PLANS OR MAY BE USED FOR
THE EQUIPMENT PADS IF REQUIRED.
8 IA CS-023
EARTHFILL (GENERAL (P)): THIS ITEM INCLUDES THE SOIL MATERIAL REQUIRED TO CONSTRUCT THE SUBMERGED BERMS, ADDITIONAL FILL TO BE PLACED OVER TILE COVER BERMS, FILL FOR PUMP EQUIPMENT PADS, AND WASTE SOIL. COHESIVE MATERIAL FOUND DURING GENERAL GRADING MUST BE RESERVE FOR CLAY LINER CONSTRUCTION, CORE TRENCH FILL, AND THE DAM CORE. SAND AND GRAVEL FOUND ON SITE SHALL NOT BE USED FOR THIS EARTHFILL WITHIN THE WETLAND AND MUST BE WASTED IN THE AREAS SHOWN ON THE PLANS. THE REQUIRED FILL INCLUDES A 20% SHRINKAGE FACTOR. COMPACTION SHALL BE NRCS METHOD 1. 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 (P)): 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. THE REQUIRED FILL INCLUDES A 20% SHRINKAGE FACTOR. COMPACTION SHALL BE METHOD 1 OR METHOD 2. 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 (P)): THIS ITEM INCLUDES THE EARTHFILL PLACEMENT AND COMPACTION NECESSARY TO CONSTRUCT THE EMBANKMENT CORE WITHIN THE EMBANKMENT. SELECT COHESIVE MATERIAL TAKEN FROM DESIGNATED BORROW AREA SHOULD BE USED FOR THIS AREA. SAND AND GRAVEL SHALL NOT BE USED FOR THIS AREA. THE REQUIRED FILL INCLUDES A 20% SHRINKAGE FACTOR. COMPACTION SHALL BE NRCS METHOD 2. 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 (18" RE-COMPACTED CLAY LINER, WETLAND BOTTOM (P)): THIS ITEM INCLUDES CONSTRUCTION OF A COMPACTED CLAY LINER WITHIN THE WETLAND POOL IN AREAS WHERE EXCAVATION OCCURS. SEQUENCING SHALL INCLUDE OVEREXCAVATION AND STOCKPILE OF 9" OF SOIL, SCARIFICATION TO A DEPTH OF 9 INCHES, AND RECOMPACTION (LIFT 1). AN ADDITIONAL 9 INCH CLAY LIFT WILL BE REPLACED ABOVE LIFT ONE AND COMPACTED, FORMING A TOTAL OF 18 INCHES OF CLAY LINER PRIOR TO RESPREADIN TOPSOIL. PROPOSED CONTOURS SHOWN ARE TO FINSHED SURFACE, POST TOPSOIL RESPREAD. MOISTURE CONDITIONING MAY BE REQUIRED AND COMPACTION SHALL BE NRCS METHOD 2. RESERVE SELECT CLAY SOILS FOR CONSTRUCTION OF THE CLAY LINER AND NOTIFY THE ENGINEER IS SANDY SOILS ARE LOCATED. 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-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 IN UNDISTURBED AREAS OF THE WETLAND POOL BOTTOM , 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.
13 IA CS-026 TOPSOIL PLACEMENT. 6 INCH: THIS ITEM INCLUDES THE RESPREAD OF TOPSOIL STOCKPILED DURING SITE STIRPPING. RESPREAD 6" TOPSOIL IN ALL DISTURBED AREAS INCLDUNG EXCAVATION, BORROW, AND EARTHFILL FOOTPRINTS. ITEM WILL BE PAID BASED ON PLAN QUANTITY.
14 IA CS-026 TOPSOIL PLACEMENT, 12 INCH: THIS ITEM INCLUDES THE RESPREAD OF TOPSOIL STOCKPILED DURING SITE STIRPPING. RESPREAD 12" TOPSOIL ON THE EMBANKMENT FOOTPRINT ON THE SOUTH WETLAND SITE. ITEM WILL BE PAID BASED ON PLAN QUANTITY.
15 IA CS-045 8" SCHEDULE 80 PVC PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, FITTINGS, AND BACKFILL OF THE BURIED 8" SCHEDULE 80 PVC PIPE AS SHOWN ON THE PLANS. PIPING WITHIN THE PUMP STATION IS NOT INCLUDED WITH THIS BID ITEM AND SHALL BE INCIDENTAL TO BID ITEM 30.
16 IA CS-046 4" PERFORATED POLYETHYLENE PIPE WITH POROUS BACKFILL, SINGLE WALL : THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 4" PERFORATED HDPE DRAIN TILE WITH POROUS BACKFILL.
17 IA CS-046 6" PERFORATED POLYETHYLENE PIPE, NON PERFORATED, SINGLE WALL: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 6" NON-PERFORATED HDPE DRAIN TILE.
18 IA CS-046 24" SDR 26 PVC PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 24" SDR 26 PVC PIPE WITH GASKETED BELL AND SPIGOT JOINTS FROM THE DRAINAGE DITCH TO THE PUMP STATION STUCTURES. PIPE SHALL BE BEDDED IN CLASS 1 AGGREGATE. CONCRETE COLLR
CONNECTIONS AT THE PUMP STUCTURE ARE REQUIRED.
19 IA CS-051 24" RISER INLET STRUCTURE: THIS ITEM INCLUDES COSTS FOR THE MATERIAL AND INSTALLATION OF 24" CMP RISER INLET STRUCTURE PIPE, TRASH RACK, AND BASE A DETAILED.
20 IA CS-051 48" CMP WATER CONTROL STRUCTURE : THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, AND MATERIALS FOR THE PLACEMENT OF THE 48" CMP WATER CONTROL STRUCTURE, FOOTING, STEEL, FABRICATION, PIPE CONNECTIONS, STOP LOGS, STOP LOG STORAGE STRUCTURE, AND LOCKABLE LID.
21 IA CS-051 18" CMP DRAWDOWN WETLAND OUTLET PIPE: THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, MATERIALS REQUIRED FOR THE EXCAVATION, AND THE PLACEMENT OF THE CORRUGATE METAL PIPE, INCLUDING ANTI-SEEPAGAE COLLARS.
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-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.
24 IA CS-061 1" CLEAN STONE: THIS ITEMS INCLUDES PROCUREMENT, PLACEMENT AND SPREADING OF 1 INCH CLEAN STONE OVER GEOTEXTILE FABRIC AT THE PUMP PADS. QUANTITY DETERMINATION IS BASED ON A UNIT WEIGHT OF 130 POUNDS PER CUBIC FOOT.
25 IA CS-061 2" CLEAN STONE: THIS ITEMS INCLUDES PROCUREMENT, PLACEMENT AND SPREADING OF 2 INCH CLEAN STONE AT THE STABILIZED CONSTRUCTION ENTRANCE.
26 CS-008 POLLUTION CONTROL, SILT FENCE: THIS ITEM INCLUDES PROCUREMENT AND INSTALLATION OF SILT FENCE AS SHOWN ON THE PLANS AND AS DETAILED.
27 IA CS-005 POLLUTION CONTROL, TYPE 2B RECP: THIS ITEM INCLUDES PROCUREMENT AND INSTALLATION OF TYPE 2B RECP TURF REINFORCING MAT IN ACOORDANCE WITH SUDAS 9040. INSTALLATION SHALL BE PER THE MANUFACTURER’S RECOMMENDATIONS.
28 DIVISION
SOLAR, BATTERY, ELECTRICAL AND CONTROLS (COMPLETE SYSTEM); THIS ITEM INCLUDES PROCUREMENT, INSTALLATION, START UP AND WARRANTYY OF ALL COMPONENTS FOR THE PHOTOVOLTAIC AND BATTERY SYSTEM AS SHOWN IN THE PLANS AND AS DESCRIBED IN THE SPECIFICATIONS INCLUDING CONNECTION
TO THE PUMP SYSTEM AND CONTROLS.
29 DIVISION
33 & 26
PUMP STATION (PUMP, CONTROLS, ELECTRICAL, STRUCTURE, APPURENTANCES (COMPLETE SYSTEM)) : THIS ITEM INCLUDES PROCUREMENT, INSTALLATION, START UP AND WARRANTY ALL COMPONENTS FOR THE PUMPING SYSTEMS AS SHOWN IN THE PLANS AND AS DESCRIBED IN THE SPECIFICATIONS INCLUDING THE CONCRETE STUCTURE, CONNECTIONS, CONTROLS, FLOATS, ELECTRICAL, VARIABLE FREQUENCY DRIVE, PUMPS, INTERIOR PIPING, WATER METER, AND REMOTE MONITORING SYSTEM. REFER TO DRAWINGS AND SPECIFICATIONS.
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11801180
PROJECT GRADING LIMITS AND TILE INSTALLATION LIMITS
STRIP AND STOCKPILE 12 INCHES OF TOPSOIL IN EMBANKMENT
FOOTPRINT AND ALONG PROPOSED DIVERSION TILE LENGTH
OUTSIDE THE PROPOSED EASEMENT. STRIP 6 INCHES OF
TOPSOIL IN ALL OTHER DISTURBED AREAS. RESPREAD TOPSOIL
PRIOR TO SEED BED PREPARATION AND SEEDING.
NO CONTRACTOR
TRAFFIC OUTSIDE OF
EASEMENT UNLESS
APPROVED BY OWNER
EXISTING STREAM
CENTERLINE
100-YEAR FEMA
FLOODPLAIN
LOCATE AND REMOVE
900' OF EXISTING TILE
LOCATE, CRUSH, AND BURY ALL TILE
WITHIN PROPOSED WETLAND POOL.
LOCATED AND REMOVE
TILE OUTLETS TO CREEK
LOCATE EXISTING FIELD TILE FOR
CONNECTIONS TO PROPOSED TILE TO
BE DAYLIGHTED TO THE POOL (TYP).
3 LOCATIONS ANTICIPATED.
PROTECT ALL TILE TO REMAIN IN PLACE.
CONTRACTOR RESPONSIBLE FOR REPAIR OF
ANY DAMAGE CAUSED BY CONSTRUCTION AT
NO ADDITIONAL COST TO THE DIVISION.
EXISTING 12" CMP
LOCATE AND REMOVE
1,020' OF EXISTING TILE
LOCATE AND REMOVE
218' OF EXISTING TILE
EASEMENT BOUNDARY
EASEMENT BOUNDARY (TYP)
REMOVE & DISPOSE
EXISTING 12" CMP OUTLET
REMOVE & DISPOSE
EXISTING 12" CMP OUTLET
APPROXIMATE PROPERTY
BOUNDARY (TYP.)
EMBANKMENT DAM
GRADING LIMITS
STRIP 12 INCHES
FEMA FLOODWAY
REMOVE AND DISPOSE
EXISTING 18" CMP OUTLET
CONSTRUCTION ACCESS ROUTE SHALL BE
WITHIN EASEMENT, COORDINATE WITH THE
OWNER. DISK COMPACTED AREAS AS
REQUIRED PRIOR TO SEED BED PREPARATION.
STABILIZED CONSTRUCTION
ENTRANCE, 30 TONS 2" CLEAN STONE
PRESTON AVE
LAKE CREEK
STABILIZED CONSTRUCTION
ENTRANCE, 30 TONS 2" CLEAN STONE
EXCAVATION LIMITS
STRIP 12 INCHES
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PROPERTY LINE (APPROX)
EXISTING CONTOUR - MAJOR
EXISTING CONTOUR - MINOR
LEGEND SURVEY NOTES:
1. LIMITED TOPOGRAPHIC SURVEY COMPLETED BY SHIVE-HATTERY ON
FEBRUARY 22, 2024.
2. SUPPLEMENTAL EXISTING SURFACE INFORMATION SHOWN WAS
BASED ON LIGHT DETECTION AND RANGING (LIDAR) INFORMATION
FROM IOWA DNR (2020).
3. CONTRACTOR SHALL VERIFY BASE SURFACE PRIOR TO
CONSTRUCTION AND COORDINATE WITH ENGINEER.
COORDINATE SYSTEM AND DATUM:
HORIZONTAL DATUM - NAD83, IOWA STATE PLANE, NORTH ZONE
VERTICAL DATUM - NAVD88
TILE INFORMATION
EXISTING TILE INFORMATION IS APPROXIMATE AND WAS PROVIDED BY
THE LANDOWNER.
EXISTING DRAIN TILE
EXISTING TILE REMOVAL
SOIL BORING SB
EASEMENT BOUNDARY
100-YEAR FLOODPLAIN
SOILS NOTES:
1. STRIP EXISTING VEGETATION AND TOPSOIL WITHIN ALL DISTURBED
AREAS. STRIPPING DEPTH SHALL BE 12 INCHES. STOCKPILE CLEAN
TOPSOIL FREE OF VEGETATION FOR RESPREAD.
2. LIMITED SOIL PROBING WAS COMPLETED BY SHIVE-HATTERY ON
OCTOBER 26, 2023. PROBING WAS DONE TO A DEPTH OF
APPROXIMATELY 42 INCHES IN PROPOSED POOL AREAS.
3. SOILS CONSIST OF A SURFACE LAYER OF DARK ORGANIC TOPSOIL
FOLLOWED BY A LEAN CLAY LAYER. SOME SILT AND SAND SEAMS WERE
PRESENT AS IS TYPICAL IN FLOODPLAN AREAS. THE CLAY LAYER WAS
OBSERVED DOWN TO DEPTHS OF ABOUT 42 INCHES. SOILS AT DEEPER
DEPTHS ARE UNKNOWN. EXCAVATION IS LIMITS TO 3 FEET IN POOL
AREAS AND SELECT SOILS SHALL BE RESERVED FOR CLAY LINER
CONSTRUCTION. SOIL CONDITIONS MAY VARY.
4. NOTIFY ENGINEER IMMEDIATELY IF SAND IS ENCOUNTERED IN LARGE
QUANTITIES. GRADING MAY REQUIRE MODIFICATION IN THE FIELD
BASED ON SOIL CONDITIONS. COORDINATE WITH THE ENGINEER.
500-YEAR FLOODPLAIN
FLOODWAY
0+00
1+00 2+00
2+50
0+
1+
2+
11801180
9:1
:1
43:1
4:1
4:1
0:
3:1
3:
85 11
:1
INSTALL 30 LF OF
6" HDPE @ 3.28%
START IE = 1189.0
END IE = 1188.0
INSTALL 74 LF OF
6" HDPE @ 0.47%
START IE = 1188.0
END IE = 1187.7
INSTALL 90 LF OF
6" HDPE @ 1.12%
START IE = 1189.0
END IE = 1188.0
IE = 1188.0
24" CMP RISER
RIM = 1185.50
NORTH WETLAND DRAWDOWN PIPE
146 LF 18" CMP @ 0.69%
48" CMP WATER CONTROL STRUCTURE
RIM = 1188.60
NORTH WETLAND OUTLET PIPE
31 LF 18" CMP @ 0.00%
PRESTON AVE
LAKE CREEK
INSTALL 34 LF OF
6" HDPE @ 0.47%
START IE = 1187.7
END IE = 1187.5
IE = 1187.5
TWO PUMP STATION SUMPS, SOLAR PANELS,
BATTERY AND CONTROLS. WATER METER TO
BE INSTALLED ON EACH DISCHARGE PIPE
- SEE DETAIL ON C304
GRAVITY INTAKE PIPE FROM
STREAM TO SUMP. TWIN 24"
SDR 26 PVC TO EACH VAULT
BURIED WATER FORCEMAIN
8 INCH SCHEDULE 80 PVC.
PROPOSED NORMAL WATER LEVEL
ELEVATION = 1186.0
AREA = 7.35 ACRES
AVERAGE DEPTH = 0.85 FT
MAX DEPTH = 2.2 FT
FEMA ZONE A
100-YEAR FLOODPLAIN
APPROXIMATE PROPERTY
BOUNDARY (TYP.)
WETLAND EXCAVATION LIMITS
AREA = 4.1 ACRES
EQUIPMENT PAD
TOP ELEV = 1191.50
EXCESS SOIL PLACEMENT LIMITS
AREA = 1.3 ACRES
EXCAVATED CHANNEL
GRADE TO DRAIN TOWARDS OUTLET
TILE COVER BERM
TOP WIDTH = 12 FEET
SIDE SLOPES = 4:1
TILE COVER BERM
TOP WIDTH = 12 FEET
SIDE SLOPES = 4:1
SEE SHEETS C201 AND C202 FOR
SOUTH WETLAND GRADING PLANS
DELINEATED
FLOODWAY
TILE OUTLET SWALE TO WETLAND POOL
PLACE 35 TONS CLASS 'E' RIPRAP 1.5' THICK
INSTALL 279 LF 4"
PERFORATED DRAIN TILE
WITH POROUS BACKFILL.
0.5% MIN SLOPE.
TILE OUTLET SWALE TO WETLAND POOL
PLACE 25 TONS CLASS 'E' RIPRAP 1.5' THICK
EASEMENT BOUNDARY (TYP.)
20 TONS CLASS 'E' RIPRAP
20 TONS CLASS 'E' RIPRAP
20 TONS CLASS 'E' RIPRAP
30 TONS CLASS 'E' RIPRAP
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LEGEND
LINE TYPEDESCRIPTION
TOP OF DAM ELEVATION
GRADING LIMITS
MAJOR CONTOUR (PROPOSED)
MINOR CONTOUR (PROPOSED)
APPROX. PROPERTY BOUNDARY
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
NORMAL WATER LEVEL
EASEMENT BOUNDARY
PROPOSED TILE
100-YEAR FLOODPLAIN
11801180
DELINEATED FLOODWAY
FEMA ZONE A
100-YEAR FLOODPLAIN
SCARIFY AND RECOMPACT 9"
OF ALL NON-EXCAVATED
AREAS WITHIN POOL LIMITS
WASTE SOIL AREA
18" RECOMPACTED CLAY
LINER WITHIN EXCAVATION
LIMITS OF POOL
SCARIFY AND RECOMPACT 9"
OF ALL NON-EXCAVATED
AREAS WITHIN POOL LIMITS
NORTH EQUIPMENT PAD
TILE COVERS
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EARTHWORK TABLE
CLASSIFICATION CUT TOTAL FILL + 20% SHRINK
EXCAVATION, WETLAND 6,176 0
EARTHFILL, EQUIPMENT PAD 0 1,110
EARTHFILL, WASTE SOIL 0 4,046
EARTHFILL, TILE BERMS 0 1,020
TOTAL EARTHWORK 6,176 6,176
ELEVATIONS TABLE
CUT/FILL MINIMUM ELEVATION (FT.) MAXIMUM ELEVATION (FT.) COLOR
CUT -3.0 -2.5
CUT -2.5 -2.0
CUT -2.0 -1.5
CUT -1.5 -1.0
CUT -1.0 -0.5
CUT -0.5 0.0
FILL 0.0 0.5
FILL 0.5 1.0
FILL 1.0 1.5
FILL 1.5 2.0
FILL 2.0 2.5
FILL 2.5 3.0
FILL 3.0 3.5
FILL 3.5 4.0
FILL 4.0 4.5
FILL 4.5 5.0
FILL 5.0 5.5
0+00.00 1+00.00 2+00.00 2+50.00
NORTH WETLAND OUTLET PIPE
18" CMP 31 LF @ 0.00%
48" CMP WATER CONTROL STRUCTURE
RIM = 1188.60
IE = 1181.0
IE = 1181.0
24" CMP RISER
RIM = 1185.50
NORTH WETLAND DRAWDOWN PIPE
18" CMP 146 LF @ 0.69%
IE = 1181.0
IE = 1182.0
NWL = 1186.00
EXISTING GROUND
20 TONS CLASS 'E' RIP RAP MOUNDED
AROUND INTAKE RISER. PLACE WITH CARE
TO ENSURE INTEGRITY OF RISER
6' X 6' CMP
ANTI-SEEP COLLAR
- SEE DETAIL
20 TONS CLASS E RIP RAP
2' THICK OVER GEOTEXTILE
MATCH EXISTING STREAM AND BANK GRADES
7' X 7' CONCRETE BASE
TOP = 1180.67
BOTTOM = 1180.00
6' X 6' CMP
ANTI-SEEP COLLAR
- SEE DETAIL
0+00
1+00
2+00
2+50
146 LF OF 18" CMP @ 0.69%
48" CMP WATER CONTROL STRUCTURE
RIM = 1188.60
31 LF OF 18" CMP @ 0.00%
24" CMP RISER
RIM = 1185.50
STOP LOG STORAGE STRUCTURE
31 LF OF 18" CMP @ 0.00%
20 TONS CLASS E RIP RAP
2' THICK OVER GEOTEXTILE
MATCH EXISTING STREAM
AND BANK GRADES
20 TONS CLASS 'E' RIP RAP
MOUNDED AROUND INTAKE RISER
HORIZONTAL SCALE:
VERTICAL SCALE:
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
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
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: C103
NO
RT
H W
ET
LA
ND
DR
AW
DO
W N
PL
AN
AN
D
PR
O
FI
LE
G
HK
DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
C
AL
B
PU
M
PE
D
W
ET
LA
N
D S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
O
UT
LE
T
CH
AN
NE
L
PL
AN
A
ND
P
RO
FI
LE
.d wg 3/
/2
:3
5:
A M
NORTH
0+00
1+00
4:1
4:1
:1
UNISTRUT RACKING FOR
PUMP AND SOLAR CONTROLS
- SEE DETAIL
SOLAR PANELS
- SEE DETAILS
105 TONS 1" CLEAN
STONE, 6" THICK
OVER GEOTEXTILE
ACCESS RAMP
WIDTH = 12 FEET
560 SY TPE 2B RECP
20 TONS CLASS
'E' RIPRAP
NORTH WETLAND PUMP STATION #1
9' X 9' CONCRETE BOX STRUCTURE
RIM = 1191.50
SUMP = 1173.00
NORTH BURIED WATER FORCEMAIN 1A
8" SCH 80 PVC 26 LF @ 0.00%
12.00'
NORTH WETLAND GRAVITY INTAKE PIPE 1A.2
24" SDR 26 PVC 4 LF @ 0.00%
NORTH WETLAND GRAVITY INTAKE PIPE 1B.2
24" SDR 26 PVC 4 LF @ 0.00%
NORTH WETLAND GRAVITY INTAKE PIPE 1A.1
24" SDR 26 PVC 94 LF @ -1.02%
NORTH WETLAND GRAVITY INTAKE PIPE 1B.1
24" SDR 26 PVC 91 LF @ 1.03%
NORTH BURIED WATER FORCEMAIN 1B
8" SCH 80 PVC 9 LF @ 0.00%
30 TONS CLASS E RIP RAP 2'
THICK OVER GEOTEXTILE
MATCH EXISTING STREAM
AND BANK GRADES
0+00.00 1+00.00 2+00.00
NWL = 1186.00
EXISTING GROUND
LIGHT ALARM
DUCKBILL CHECK VALVE
PUMP STATION
- SEE DETAIL ON C304
20 TONS CLASS 'E' RIPRAP 2'
THICK OVER GEOTEXTILE FABRIC
SUMP = 1173.00
CONCRETE BASE AND
STONE SUBBASE
- SEE DETAIL
PROPOSED GROUND
IE = 1187.0
IE = 1187.0
IE = 1178.9
IE = 1178.0
8" SH 80 PVC FORCEMAIN
24" SDR 26 PVC
30 TONS CLASS 'E' RIPRAP 2'
THICK OVER GEOTEXTILE FABRIC
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
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
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: C104
NO
RT
H W
ET
LA
ND
PU
M P
ST
AT
IO
N
PL
AN
A
ND
P
RO
FI
LE
G
HK
DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
C
AL
B
PU
M
PE
D
W
ET
LA
N
D S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
O
UT
LE
T
CH
AN
NE
L
PL
AN
A
ND
P
RO
FI
LE
.d wg 3/
/2
:3
5:
A M
NO
RTH
HORIZONTAL SCALE:
VERTICAL SCALE:
0+00
1+00
4:1
4:1
:1
NORTH WETLAND PUMP STATION #2
9' X 9' CONCRETE BOX STRUCTURE
RIM = 1191.50
SUMP = 1173.00
UNISTRUT RACKING FOR
PUMP AND SOLAR CONTROLS
- SEE DETAIL
SOLAR PANELS
- SEE DETAILS
105 TONS 1" CLEAN
STONE, 6" THICK
OVER GEOTEXTILE
ACCESS RAMP
WIDTH = 12 FEET
560 SY TPE 2B RECP
20 TONS CLASS
'E' RIPRAP
12.00'
NORTH WETLAND GRAVITY INTAKE PIPE 2B.2
24" SDR 26 PVC 4 LF @ 0.00%
NORTH WETLAND GRAVITY INTAKE PIPE 2A.2
24" SDR 26 PVC 4 LF @ 0.00%
NORTH WETLAND GRAVITY INTAKE PIPE 2A.1
24" SDR 26 PVC 84 LF @ -1.19%
NORTH WETLAND GRAVITY INTAKE PIPE 2B.1
24" SDR 26 PVC 82 LF @ -1.22%
NORTH BURIED WATER FORCEMAIN 2B
8" SCH 80 PVC 20 LF @ -0.00%
NORTH BURIED WATER FORCEMAIN 2A
8" SCH 80 PVC 33 LF @ 0.00%
NORTH BURIED WATER FORCEMAIN 2C
8" SCH 80 PVC 3 LF @ 0.00%
30 TONS CLASS E RIP RAP 2'
THICK OVER GEOTEXTILE
MATCH EXISTING STREAM
AND BANK GRADES
0+00.00 1+00.00 2+00.00 2+25.13
IE = 1187.0 NWL = 1186.00
EXISTING GROUND
LIGHT ALARM
PUMP STATION
- SEE DETAIL ON C304
20 TONS CLASS 'E' RIPRAP 2'
THICK OVER GEOTEXTILE FABRIC
SUMP = 1173.00
CONCRETE BASE AND
STONE SUBBASE
- SEE DETAIL
PROPOSED GROUND
NORTH WETLAND PUMP STATION #2
9' X 9' CONCRETE BOX STRUCTURE
RIM = 1191.50
SUMP = 1173.00
8" SH 80 PVC FORCEMAIN
DUCKBILL CHECK VALVE
IE = 1179.0
24" SDR 26 PVC
IE = 1178.0
30 TONS CLASS 'E' RIPRAP 2'
THICK OVER GEOTEXTILE FABRIC
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
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
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: C105
NO
RT
H W
ET
LA
ND
PU
M P
ST
AT
IO
N
PL
AN
A
ND
P
RO
FI
LE
G
HK
DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
C
AL
B
PU
M
PE
D
W
ET
LA
N
D S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
O
UT
LE
T
CH
AN
NE
L
PL
AN
A
ND
P
RO
FI
LE
.d wg 3/
/2
:3
5:
A M
NO
RTH
HORIZONTAL SCALE:
VERTICAL SCALE:
2+00
11801180
C
ALH
O U
N C
O U
N
TY
D
&J LAN
D
TR
U
ST
W U
EBKER
, JO
EL & M
O
N
IC
A
D
&J LAN
D
TR
U
ST
PRESTON AVE
SEED FROM WETLAND POOL
TO EASEMENT BOUNDARY
BUFFER SEEDING
AREA = 15.1 ACRES
EASEMENT BOUNDARY
GRADING LIMITS (TYP)
EXISTING STREAM
CENTERLINE
SEED SPOIL AREA AND TILE COVER BERMS
STRUCTURE SEEDING
AREA = 1.3 ACRES
SEED PUMP STATION PAD
STRUCTURE SEEDING
AREA = 0.2 ACRES
SEE C206 FOR SOUTH
WETLAND SEEDING PLAN
560 SY TYPE
2B RECP
N O
R
TH
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
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
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:
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: C106
NO
RT
H
SE
ED
IN
G
PL
AN
G
HK
DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
C
AL
B
PU
M
PE
D
W
ET
LA
N
D S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
1-
SE
EE
DI
NG
P
LA
N.
dw g
3/
/2
:3 5:
A
M
LEGEND
DESCRIPTION
FENCE
STRUCTURE SEEDING
BUFFER SEEDING
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
LINE TYPE
EASEMENT BOUNDARY
GRADING LIMITS
0+
1+
2+
3+
4+
11801180
4:1
4:1
:1
:1
4:1 4:1
15:1
PRESTON AVE
LAKE CREEK
48" CMP WATER CONTROL STRUCTURE
RIM = 1187.00 SOUTH WETLAND DRAWDOWN PIPE
57 LF 18" CMP @ 0.88%
24" CMP RISER
RIM = 1185.50
SOUTH WETLAND OUTLET PIPE
57 LF 18" CMP @ 0.87%
PROTECT EXISTING
BURIED TELECOM LINE
GRAVITY INTAKE PIPE
FROM STREAM TO SUMP
TWIN 24" SDR 26 PVC
SEDIMENT FOREBAY GRADING LIMITS
BOTTOM = 1185.0
DEPTH = 2 FEET
TOP OF BERM
TOP WIDTH = 24 FEET
ELEVATION = 1187.0
MAINTAIN SWALE
DRAINAGE
PUMP STATION SUMP,SOLAR PANELS,
BATTERY, AND CONTROLS. WATER METER
TO BE INSTALLED ON DISCHARGE PIPE
- SEE DETAIL ON C305
BURIED WATER FORCEMAIN.
8 INCH C900 PVC
EASEMENT BOUNDARY (TYP.)
APPROXIMATE PROPERTY
BOUNDARY (TYP.)
ARMOR NATURAL FLOODPLAIN
INFLOW/OUTFLOW LOCATION
CREST = 1186.5
70 TONS CLASS 'E' RIPRAP
EXCAVATED CHANNEL GRADE TO
DRAIN TOWARDS OUTLET
SEE C101 AND C102 FOR
NORTH WETLAND
WETLAND EXCAVATION LIMITS
AREA = 1.1 ACRES
PROPOSED NORMAL WATER LEVEL
ELEVATION = 1186.0
AREA = 4.7 ACRES
AVERAGE DEPTH = 0.63 FT
MAX DEPTH = 3.0 FT
20 TONS CLASS 'E' RIPRAP
STABILIZED
CONSTRUCTION
ENTRANCE, 30 TONS 2
INCH CLEAN STONE
20 TONS CLASS 'E' RIPRAP
20 TONS CLASS 'E' RIPRAP
20 TONS CLASS 'E' RIPRAP
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
IOWA D
EP
A R
TM
EN T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
D R
AW
N
B Y
AP
PR
O
VE
D B
Y
IS
SU
ED
F
O R
IS
SU
E D
AT
E
FI
EL
D B
O O
K
PR
O
JE
C
T N
U M
BE
R
Pr in te d: C201
SO
U
TH
W
ET
LA
N D
G R
AD
IN
G P
LA
N
G
HK DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
50 --- ---C
AL
B
PU
M
PE
D W
ET
LA
N D
S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
G
RA
DI
NG
P
LA
N.
dw g
3/
/2
:3 5:
A
M
N O
R
TH
LEGEND
LINE TYPEDESCRIPTION
TOP OF DAM ELEVATION
GRADING LIMITS
MAJOR CONTOUR (PROPOSED)
MINOR CONTOUR (PROPOSED)
APPROX. PROPERTY BOUNDARY
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
NORMAL WATER LEVEL
EASEMENT BOUNDARY
PROPOSED TILE
100-YEAR FLOODPLAIN
0+
1+
2+
3+
4+
11801180
FEMA ZONE A
100-YEAR FLOODPLAIN
DELINEATED FLOODWAY
DELINEATED FLOODWAY
18" RECOMPACTED CLAY
LINER WITHIN EXCAVATION
LIMITS OF POOL
SCARIFY AND RECOMPACT 9"
OF ALL NON-EXCAVATED
AREAS WITHIN POOL LIMITS
SOUTH EMBANKMENT
SOUTH EQUIPMENT PAD
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
IOWA D
EP
A R
TM
EN T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
D R
AW
N
B Y
AP
PR
O
VE
D B
Y
IS
SU
ED
F
O R
IS
SU
E D
AT
E
FI
EL
D B
O O
K
PR
O
JE
C
T N
U M
BE
R
Pr in te d: C202
SO
U
TH
W
ET
LA
N D
C U
T-
FI
LL
P
LA
N
G
HK DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
50 --- ---C
AL
B
PU
M
PE
D W
ET
LA
N D
S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
G
RA
DI
NG
P
LA
N.
dw g
3/
/2
:3 5:
A
M
N O
R
TH
ELEVATIONS TABLE
CUT/FILL MINIMUM ELEVATION (FT.) MAXIMUM ELEVATION (FT.) COLOR
CUT -2.5 -2.0
CUT -2.0 -1.5
CUT -1.5 -1.0
CUT -1.0 -0.5
CUT -0.5 0.0
FILL 0.0 0.5
FILL 0.5 1.0
FILL 1.0 1.5
FILL 1.5 2.0
FILL 2.0 2.5
FILL 2.5 3.0
FILL 3.0 3.5
FILL 3.5 4.0
FILL 4.0 4.5
EARTHWORK TABLE
CLASSIFICATION CUT TOTAL FILL + 20% SHRINK
EXCAVATION, WETLAND 1,056 0
EARTHFILL, EQUIPMENT PAD 0 578
EARTHFILL, WASTE SOIL 0 478
TOTAL EARTHWORK 1,056 1,056
0+00 1+00 2+00 3+00 4+00
4:
4:
24" CMP RISER
RIM = 1185.50
57 LF OF 18" CMP @ 0.88%
48" CMP WATER CONTROL STRUCTURE
RIM = 1187.00
57 LF OF 18" CMP @ 0.87%
0+00 1+00 2+00 3+00 4+00
PROPOSED TOP OF DAM
ELEVATION = 1187.00
EXISTING GROUND
OVERBUILD EMBANKMENT
TO ELEVATION OF 1187.10
A B C D E F
W
ES
TO
W
N P
KW
Y, S U
IT
E
W
ES
T D
ES
M
O
IN
ES
, I
O W
A
5.
3.
S
H
IV
E- H
AT
TE
R Y.
C O
M
A B C D E F
IOWA D
EP
A R
TM
EN T O F
A G R I C U L T UR E
L A
ND
S
TEWARDSHIP
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
SO
UT
H
EM
BA
NK
M
EN
T
PL
AN
AN
D
PR
O
FI
LE
G
HK
DJ
J
BI
D
DO
CU
M
EN
TS
1/
/2
C
AL
B
PU
M
PE
D
W
ET
LA
N
D S
ID
AL
S
RO
CK
W
EL
L
CI
TY
, I
O W
A
P:
\P ro je ct s\
DM
\2
0\ De liv er ab le s\ Dr aw in gs \1
_C ivi l\C
O
UT
LE
T
CH
AN
NE
L
PL
AN
A
ND
P
RO
FI
LE
.d wg 3/
/2
:3
6:
A M
HORIZONTAL SCALE:VERTICAL SCALE:
1+50
4:1
24" CMP RISER
RIM = 1185.50
57 LF OF 18" CMP @ 0.88%
48" CMP WATER CONTROL STRUCTURE
RIM = 1187.00
57 LF OF 18" CMP @ 0.87%
STOP LOG STORAGE STRUCTURE
20 TONS CLASS E RIP RAP
2' THICK OVER GEOTEXTILE
MATCH EXISTING STREAM AND BANK GRADES
20 TONS CLASS 'E' RIP RAP
MOUNDED AROUND INTAKE RISER
0+00.00 1+00.00 1+50.00
24" CMP RISER
RIM = 1185.50
SOUTH WETLAND DRAWDOWN PIPE
18" CMP 57 LF @ 0.88%
SOUTH WETLAND OUTLET PIPE
18" CMP 57 LF @ 0.87%
48" CMP WATER CONTROL STRUCTURE
RIM = 1187.00
IE = 1180.5
IE = 1180.0
IE = 1181.0
IE = 1180.5
20 TONS CLASS 'E' RIP RAP MOUNDED
AROUND INTAKE RISER. PLACE WITH CARE
TO ENSURE INTEGRITY OF RISER
NWL = 1186.00
6' X 6' CMP
ANTI-SEEP COLLAR
- SEE DETAIL
20 TONS CLASS E RIP RAP
2' THICK OVER GEOTEXTILE
7' X 7' CONCRETE BASE
TOP = 1180.17
BOTTOM = 1179.50
6' X 6' CMP
ANTI-SEEP COLLAR
- SEE DETAIL
A B C D E F
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A M
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SOUTH BURIED WATER FORCEMAIN
8" SCH 80 PVC 27 LF @ 0.00%
SOUTH GRAVITY INTAKE 2
24" SDR 26 PVC 105 LF @ -0.24%
SOUTH WETLAND PUMP STATION
9' X 9' CONCRETE BOX STRUCTURE
RIM = 1190.00
SUMP = 1175.50
SOUTH GRAVITY INTAKE 1
24" SDR 26 PVC 104 LF @ -0.24%
UNISTRUT RACKING FOR
PUMP AND SOLAR CONTROLS
- SEE DETAIL
SOLAR PANELS
- SEE DETAILS
70 TONS 2" CLEAN
STONE, 6" THICK
OVER GEOTEXTILE
ACCESS RAMP
WIDTH = 12 FEET
SIMPLEX PUMP STATION
- SEE DETAIL ON C305
395 SY TPE 2B RECP
20 TONS CLASS
'E' RIPRAP
20 TONS CLASS E RIP RAP
2' THICK OVER GEOTEXTILE
MATCH EXISTING STREAM
AND BANK GRADES
0+00.00 1+00.00 2+00.00
IE = 1180.3
IE = 1180.0
IE = 1187.0 IE = 1187.0
SOUTH WETLAND PUMP STATION
9' X 9' CONCRETE BOX STRUCTURE
RIM = 1190.00
SUMP = 1175.50
LIGHT ALARM
PUMP STATION
- SEE DETAIL ON C305
20 TONS CLASS 'E' RIPRAP 2'
THICK OVER GEOTEXTILE FABRIC
NWL = 1186.00
PROPOSED GROUND
EXISTING GROUND
SUMP = 1175.00
CONCRETE BASE AND
STONE SUBBASE
- SEE DETAIL
20 TONS CLASS 'E' RIPRAP 2'
THICK OVER GEOTEXTILE FABRIC
8" SH 80 PVC FORCEMAIN
24" SDR 26 PVC
A B C D E F
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11801180
C
ALH
O U
N C
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N
TY
PRESTON AVE
BUFFER SEEDING
AREA = 0.6 ACRES
EASEMENT BOUNDARY
GRADING LIMITS (TYP)
EXISTING STREAM
CENTERLINE
SEED WETLAND EMBANKMENT
STRUCTURE SEEDING
AREA = 0.3 ACRES
GRADING LIMITS (TYP)
SEED PUMP STATION PAD
STRUCTURE SEEDING
AREA = 0.1 ACRES
CONTRACTOR IS RESPONSIBLE FOR RE-SEEDING ALL DISTURBED
AREA WITHIN THE EASEMENT AND OUTSIDE OF THE POOL. SITE IS
CURRENTLY SEEDED TO NATIVE PRAIRIE. SEEDING AREA SHOWN
IS AN ESTIMATE OF NEEDED DISTURBANCE FOR STAGING AND
ACCESS. MINIMIZE DISTURBANCE TO ESTABLISHED VEGETATION
DESIGNATED TO REMAIN TO THE EXTENT PRACTICAL
395 SY TYPE
2B RECP
INSTALL 422 LF
OF SILT FENCE
SEE C106 FOR NORTH
WETLAND SEEDING PLAN
A B C D E F
W
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TO
W
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H
IV
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AT
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R Y.
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LEGEND
DESCRIPTION
FENCE
STRUCTURE SEEDING
BUFFER SEEDING
MAJOR CONTOUR (EXISTING)
MINOR CONTOUR (EXISTING)
LINE TYPE
EASEMENT BOUNDARY
GRADING LIMITS
EXISTING SOIL SURFACE
16" HOLES LOCATED AS SHOWN,
PRE-PUNCHED BY SIGN
FABRICATOR. FASTEN SIGN TO
POSTS WITH 3/8" DIA. STEEL BOLT &
NUT SET, SEE BOLT, WASHER, &
NUT FASTENER DETAIL THIS SHEET
(4 SETS REQ'D. PROVIDED AND
INSTALLED BY CONTRACTOR).
SIGN PANEL TO BE 0.080" THICK
ALUMINUM SUBSTRATE WITH 3M (OR
EQUAL) ENGINEER GRADE REFLECTIVE
SHEETING. SIGN PANELS FURNISHED BY
THE DIVISION OF SOIL CONSERVATION.
SIGN PANEL INSTALLED BY CONTRACTOR.
BACKFILL WITH CONCRETE
(PREFERRED), CLEAN STONE
(ACCEPTABLE), OR HAND-TAMPED
EARTH IN SMALL LIFTS (SUBJECT
TO ENGINEER'S APPROVAL)
2 EACH OF 4"x4"x12'
PRESSURE-TREATED POST
(TYP.). POSTS SEALED WITH
THOMPSON'S WATER SEAL OR
EQUAL. POSTS, SEALANT, AND
INSTALLATION PROVIDED BY
CONTRACTOR.
SIGNAGE NOTES:
1. DIVISION WILL FURNISH SIGN PANEL. CONTRACTOR IS RESPONSIBLE FOR PROVIDING POSTS, HARDWARE, AND INSTALLATION.
2. ALL EXPOSED WOOD SHALL BE SEALED WITH THOMPSON'S WATER SEAL OR EQUAL MEETING ASTM D-4446-08.
3. ALL STEEL HARDWARE PIECES SHALL BE GALVANIZED OR RUST RESISTANT.
4. NYLON AND STEEL WASHERS SHALL BE USED AS SHOWN ON THE BOLT, WASHER, NUT FASTENER
DETAIL ABOVE.
5. CLEAR UTILITIES WITH IOWA ONE-CALL (800) 292-8989 BEFORE EXCAVATING FOR POSTS.
6. SECURE DIVISION AND LANDOWNER APPROVAL FOR SIGN LOCATION BEFORE INSTALLATION.
7. COSTS FOR POSTS, HARDWARE, WOOD SEALANT AND SIGN INSTALLATION SHALL BE INCIDENTAL TO
MOBILIZATION.
8. CONTRACTOR SHALL INSTALL SIGN POSTS USING A PLYWOOD OR OTHER SUITABLE TEMPLATE TO MAINTAIN ACCURATE POST SPACING AND ALIGNMENT DURING BACKFILLING OF THE POST HOLES. TO AVOID BENDING OF THE SIGN PANELS, POSTS SHALL NOT BE INSTALLED OR BACKFILLED WITH SIGN
PANELS ATTACHED.
9. ONE (1) PROJECT SIGN IS REQUIRED UNLESS NOTED OTHERWISE.
TOP
PANEL
9"
30"
48" 9"
3" (T
YP
BOLT, WASHER, &
NUT
FASTENER DETAIL
NOT TO SCALE
STEEL
WASHER
HEAD
NYLON WASHER
AGAINST FACE OF SIGN
STEEL WASHER
BACK OF POST NUT
TH
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KN
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S
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NWL = 1186.00
PROPOSED GROUND
EXISTING GROUND (VARIES)
ELEV = 1185.75
10' MINIMUM
REFER TO GRADING PLAN
WAVE BENCH
A1 WAVE PROTECTION BENCH AT NWL
ELEV = 1186.25
EXISTING GROUND
TIE INTO EXISTING TILE AS
DETAILED -
FIELD VERIFY LOCATION
AND DEPTHSNWL = 1186.00
PROPOSED GROUND
LAST 20 LF SHALL BE CMP
WITH RODENT GUARD
1 SIZE LARGER THAN PROPOSED TILE
PE FIELD TILE -
SEE PLANS FOR LENGTHS AND
LOCATIONS
PROPOSED GROUND
CONCRETE CONNECTION
MATCH INVERTS
A3 TYPICAL TILE DAYLIGHT
MATCH INVERTS
D
2D INSTALL APPROPRIATELT SIZED FERNCO OR
APPROVED EQUIVALENT COUPLER AND
CONCRETE COLLAR OF 3,000 PSI MINIMUM STRENGTH
CONCRETE, MINIMUM 2D WIDE CENTERED ON JOINT,
MIN 6'' THICKNESS FOR FULL 2D WIDTH. THICKNESS
CAN TAPER DOWN BEYOND THE 2D WIDTH.
FlowFlow
NEW SECTION OF TILE
EXISTING TILE
A2 FIELD TILE REPAIR CONNECTION
IE = 1187.00
D4 PROJECT SIGN
A4 CMP PIPE BEDDING
1. SUBGRADE SHOULD BE EXCAVATED OR OVER EXCAVATED, IF
NECESSARY, SO A UNIFORM FOUNDATION FREE OF
PROTRUDING ROCKS MAY BE PROVIDED.
2. GRANULAR BEDDING IS NOT ALLOWED AS IT MAY CREATE A
SEEPAGE PATHWAY. BACK FILL WILL IMPERVIOUS COMPACTED
CLAY BY HAND.
NOTE:
2'-10"
21.5"
4"UNDISTRUBED
SOIL
IMPERVIOUS FILL HAND COMPACTED IN 6 INCH LIFTS
2.00''
6.
0.75'' NOTES:
1. ALUMINUM OR PVC STOP-LOGS SHALL BE PROVIDED BY CONTRACTOR.
ALUMINUM STOP LOGS ARE DETAILED, PVC STOP LOGS SUBJECT TO
APPROVAL BY ENGINEER.
2. CONTRACTOR IS RESPONSIBLE FOR CUTTING STOP-LOGS AS SHOWN.
THE 0.75'' DIMENSION IS CRITICAL AND NEEDS TO BE CENTERED IN THE
STOP-LOG TO AVOID LEAKAGE.
3. THE FINISHED SURFACE SHALL BE SMOOTH TO PROVIDE A FLAT
SURFACE FOR THE STOP-LOG ABOVE IT.
4. THE CONTRACTOR SHALL DELIVER A TOTAL OF 21 STOP-LOGS TO THE
SITE (10 FOR NORTH SITE AND 11 FOR SOUTH SITE).
5. THE COST OF THE STOP-LOG WORK IS INCIDENTAL TO THE OUTLET
CONTROL STRUCTURE.
12''
8.
2.25''
NOTE:
TWO (2) LIFTING HOOKS REQUIRED
2'' DIAMETER ROD
1 1/4'' DIAMETER INSIDE
BEND. HOOK TO BE IN
LINE WITH HANDLE.
WATER CONTROL STRUCTURE
L 3 X 3 X 3 8
GALVANIZED (TYP)
ALUMINUM STOP LOG 1'' LESS THAN
TIGHT FIT. FIELD VERIFY LENGTH.
CONTINUOUS WELD
2.
0"
2.
5'
2.
5'
6''3''1''3''
0.
LIFTING HOLES
LIFTING HOLES
NOTES:
1. CONTRACTOR TO DRILL 38" HOLES IN TOP OF STOP LOG
CHANNELS AND PROVIDE TWO (2) PAD LOCKS TO LOCK
THROUGH CHANNELS TO PREVENT LOGS FROM BEING
LIFTED OUT WHEN…
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