03_BUC871015D_Plans 08-20-2024.pdf

STATE OF IOWA

BUCHANAN COUNTY, 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:

3084-3030 EVERLY AVE, BRANDON, IA 52210

CONTACT/SITE INFORMATION:

IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP

SARA SMITH, PE.,PHD

502 E. 9TH STREET

DES MOINES, IA, 50319

PH: (515) 422-7335

SARA.SMITH@IOWAAGRICULTURE.GOV

BUC871015D WETLAND

IDALS

PROJECT

LOCATION

PR

O

JE

C

T N

O

C

LI

EN

T

N O

Pr in te d: C000

FI

NA

L

DE

SI

G

N 8/

8/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

- C O

VE

R

SH

EE

T.

dw g 8/

/2

2:

:0

PM

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 EXCLUDING C401

DANIEL J. 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 N T O F

AGR

I C U L T UR E & L A N D S T EWA R D

S H

IP

PROJECT

LOCATION

BUCHANAN COUNTY

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 URE

L A

ND

S

TEWARDSHIP

EV

ER

LY

A

VE

THE ENGINEERING JOB CLASS IS IV

CONSTRUCTION

ENTRANCE

INDEPENDENCE

FAIRBANK

WINTHROP

ROWLEY

BRANDON

BRANDON, IA

2 MILES

JESUP

HAZLETON

AURORA

LANDOWNERS

DICK SLOAN

PH: (319) 558-6934

Sheet List Table Sheet Number Sheet Title

C000 COVER SHEET

C001 PROJECT QUANTITIES & NOTES

CD01 EXISTING CONDITIONS AND REMOVALS

C201 OVERALL GRADING PLAN

C202 PROPOSED TILE PLAN

C203 GRADING PLAN

C204 CUT-FILL PLAN

C301 EMBANKMENT PLAN AND PROFILE

C302 PRINCIPAL SPILLWAY PLAN AND PROFILE

C303 DRAWDOWN STRUCTURE PLAN AND PROFILE

C304 DRAIN TILE PLAN AND PROFILE

C305 DRAIN TILE PLAN AND PROFILE

C306 DRAIN TILE PLAN AND PROFILE

C307 DRAIN TILE PLAN AND PROFILE

C401 SHEET PILE DESIGN

C501 CONSTRUCTION DETAILS

C502 CONSTRUCTION DETAILS

C503 CONSTRUCTION DETAILS

C504 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.

C401

CHRIS R. MARVIN

27417

STRUCTURAL ENGINEER

CHANNEL

CROSSING

EASEMENT

BOUNDARY

CHANNEL

CROSSING

NUTRIENT REDUCTION WETLAND

8-20-2024

8-20-2024

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 URE

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: C001

PR

O

JE

CT

Q

UA

NT

IT

IE

S

NO

TE

S

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

Q

UA

NT

IT

IE

S.

dw g

8/ 7/

0:

:4

AM

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.

# ITEM DESCRIPTION QUANTITY UNITS

1 SITE STRIPPING & PREPARATION 1 LS

2 CROP DAMAGE 0 AC

3 STRUCTURE & CHANNEL SEEDING 4.1 AC

4 BUFFER SEEDING 10.6 AC

5 MOBILIZATION AND DEMOBILIZATION 1 LS

6 DRAIN TILE INVESTIGATION AND REMOVAL 7,860 LF

7 STEEL SHEET PILING 1,094 SF

8 EARTHFILL (GENERAL (P)) 2,431 CY

9 EARTHFILL (GENERAL DAM (P)) 9,885 CY

10 EARTHFILL (DAM CORE (P)) 3,026 CY

11 EARTHFILL (SCARIFY AND RECOMPACT 18" LAYER OF WETLAND BOTTOM, TWO 9" LIFTS (P)): 9,494 CY

12 EARTHFILL (SCARIFY AND RECOMPACT 9" LAYER OF WETLAND BOTTOM (P)): 7,513 CY

13 TOPSOIL PLACEMENT, 12 INCH 3,078 CY

14 TOPSOIL PLACEMENT, 6 INCH 5,492 CY

15 4" CORRUGATED PROFILE WALL (DUAL WALL, PERFORATED) POLYETHYLENE PIPE 1,194 LF

16 6" CORRUGATED PROFILE WALL (DUAL WALL, PERFORATED) POLYETHYLENE PIPE 1,096 LF

17 6" CORRUGATED PROFILE WALL (DUAL WALL, PERFORATED) POLYETHYLENE PIPE WITH POROUS BACKFILL 1,819 LF

18 6" CORRUGATED PROFILE WALL (DUAL WALL, NON-PERFORATED) POLYETHYLENE PIPE 1,357 LF

19 24" ALUMINIZED CMP DRAWDOWN RISER, 12 GA 1 EA

20 48" CMP WATER CONTROL STRUCTURE 1 EA

21 18" ALUMINIZED CMP WETLAND DRAWDOWN PIPE, 14GA 156 LF

22 18" ALUMINIZED CMP FLARED END SECITON 1 EA

23 8" CMP TILE OUTLETS (20 LF EACH) 5 EA

24 RIP RAP 1850 TON

25 2" CLEAN STONE 110 TON

26 EROSION STONE 220 TON

27 CONCRETE GROUT 198 CY

28 POLLUTION CONTROL, SILT FENCE 3160 LF

29 POLLUTION CONTROL, TURF REINFORCEMENT MAT, TYPE II 1430 SY

ESTIMATE REFERENCE NOTES:

PROJECT ID BUC871015D

LANDOWNER(S) DICK SLOAN

PRELIMINARY OR FINAL DESIGN FINAL DESIGN

DRAINAGE AREA 631 ACRES

WETLAND POOL AREA 9.97 ACRES

DEEP WATER AREA (>3 FT DEEP) 2.28 ACRES

NORMAL POOL ELEVATION 879.5 FEET

AVERAGE POOL DEPTH 1.93 FEET

MAXIMUM POOL DEPTH 5.0 FEET

POOL STORAGE 18.9 ACRE-FEET

BERM ELEVATION 882.5 FEET

BERM STORAGE 66.27 ACRE-FEET

LENGTH OF BERM 1811 FEET

AUXILIARY SPILLWAY ELEVATION 881.5 FEET

AUXILIARY SPILLWAY WIDTH 150 FEET

WEIR WIDTH 80 FEET

DROP HEIGHT 3 FEET

TIME OF CONCENTRATION 1.47 HOURS

WEIGHTED RUNOFF CURVE NUMBER 77 -----

25-YEAR STORM DESIGN FLOW 788 CFS

100-YEAR STORM DESIGN FLOW 1226 CFS

100-YEAR FLOOD SURF. ELEVATION 881.94 FEET

TOTAL EASEMENT AREA 25.17 ACRES

WETLAND DESIGN DATA:

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 CUBIC YARDS OF TOP SOIL REMOVAL AS SHOWN IN THE PLANS. 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 FOR ALL EMBANKMENT AND TILE COVER BERM AREAS AND INCLUDES SEEDBED PREP, SEEDING, MULCHING, AND FERTILIZER.

4 IA CS-006 BUFFER SEEDING: THIS ITEM INCLUDES SEEDING FOR ALL AREAS ABOVE NORMAL POOL AND WITHIN EASEMENT BOUNDARY, EXCLUDING THOSE AREAS WHERE STRUCTURE SEEDING IS SPECIFIED. SEE

SEEDING PLAN. 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, AS SHOWN ON THE PLANS OR ON NEXT PAGE.

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-013 STEEL SHEET PILING: THIS ITEM INCLUDES PROCUREMENT AND INSTALLATION OF THE SHEET PILING AS DETAILED ON SHEET C401 INCLUDING FIELD WELDING, CUTTING, TRIMMING, WALER, BOLTS, NUTS, AND OTHER APPURTENANCES.

8 IA CS-023

EARTHFILL (GENERAL (P)): THIS ITEM INCLUDES THE AMOUNT OF MATERIAL REQUIRED TO CONSTRUCT THE SUBMERGED BERMS AND ADDITIONAL FILL TO BE PLACED OVER TILE COVER BERMS. 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 (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.

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 (P)): THIS ITEM INCLUDES THE EARTHFILL PLACEMENT AND COMPACTION NECESSARY TO CONSTRUCT THE EMBANKMENT CORE WITHIN THE EMBANKMENT. 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 18" LAYER OF WETLAND BOTTOM, TWO 9" LIFTS (P)): THIS ITEM INCLUDES SCARIFICATION AND LOOSENING OF A 18" LINER IN TWO LIFTS IN ALL EXCAVATED AREAS WITHIN THE WETLAND POOL. REMOVE AN ADDITIONAL 9" OF SOIL, SCARIFY AND RE-COMPACT 9" BELOW, REPLACE 9" AND RECOMPACT, 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-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, 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. 12 INCH: THIS ITEM INCLUDES THE STRIPPING, SALVAGE, AND STOCKPILE 12" OF EXISTING MATERIAL FROM THE EMBANKMENT FOOTPRINT. RESPREAD 12" TOPSOIL WITHIN

EMBANKMENT FOOTPRINT. ITEM WILL BE PAID BASED ON PLAN QUANTITY.

14 IA CS-026 TOPSOIL PLACEMENT. 6 INCH: THIS ITEM INCLUDES THE STRIPPING, SALVAGE, AND STOCKPILE 6" OF EXISTING MATERIAL FROM ALL OTHER DISTRUBED AREAS. RESPREAD 6" TOPSOIL IN ALL OTHER

DISTURBED AREAS. ITEM WILL BE PAID BASED ON PLAN QUANTITY.

15 IA CS-026

4" CORRUGATED PROFILE WALL (DUAL WALL) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 4" CORRUGATED PROFILE WALL (DUAL

WALL) POLYETHYLENE PIPE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.

16 IA CS-046 6" CORRUGATED POLYETHYLENE PIPE (PERFORATED): THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 6" DUAL-WALL PERFORATED HDPE DRAIN TILE. SEE

SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.

17 IA CS-046 6" CORRUGATED PROFILE WALL (DUAL WALL, PERFORATED) POLYETHYLENE PIPE WITH POROUS BACKFILL: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND POROUS BACKFILL OF THE 6" DUAL-WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS. POROUS BACKFILL TO BE PEA GRAVEL.

18 IA CS-046 6" CORRUGATED PROFILE WALL (DUAL WALL, NON-PERFORATED) POLYETHYLENE PIPE: THIS ITEM INCLUDES THE MATERIAL, EXCAVATION, PLACEMENT, JOINTING, AND BACKFILL OF THE 6" DUAL-WALL NON-PERFORATED HDPE DRAIN TILE. SEE SHEET C202 FOR LENGTHS, LOCATIONS AND ELEVATIONS.

19 IA CS-051 24" ALUMINIZED CMP DRAWDOWN RISER, 12 GA: THIS ITEM INCLUDES COSTS FOR THE MATERIAL AND INSTALLATION OF 24 INCH ALUMINIZED CMP DRAWDOWN STRUCTURE RISER 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 RISER STRUCTURE, FOOTING, STEEL, FABRICATION, PIPE

CONNECTIONS, AND TRASH RACK.

21 IA CS-051 15" CMP DRAWDOWN WETLAND OUTLET PIPE: THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, MATERIALS REQUIRED FOR THE EXCAVATION, AND THE PLACEMENT OF THE CORRUGATE METAL PIPE.

22 IA CS-051 18" ALUMINIZED CMP FLARED END SECITON: THIS ITEM INCLUDES ALL LABOR, EQUIPMENT, MATERIALS REQUIRED FOR THE EXCAVATION, AND THE PLACEMENT OF THE FLARED END SECTION AND

REINFORCED CONRETE FES FOOTING.

23 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.

24 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. THIS ITEM INCLUES TILE OUTLETS, FOREBAY ROCK CHECKS, SHEET PILE OUTLET CHANNEL, AND LOW WATER CROSSING. 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.

25 IA CS-061 2" CLEAN STONE: THIS ITEMS INCLUDES PROCUREMENT, PLACEMENT AND SPREADING OF 2 INCH CLEAN STONE AT THE CONSTRUCTION ENTRANCE. THIS ITEM ALSO INCLUDES LOW WATER CROSSING AND SHEET PILE OUTLET CHANNEL. QUANTITY DETERMINATION IS BASED ON A UNIT WEIGHT OF 130 POUNDS PER CUBIC FOOT.

26 IA CS-061 EROSION STONE: THIS ITEM INCLUDES PROCUREMENT, PLACEMENT AND SPREADING OF EROSION STONE AT THE LOW WATER CROSSINGS. QUANTITY DETERMINATION IS BASED ON A UNIT WEIGHT OF 120

POUNDS PER CUBIC FOOT.

27 IA CS-062

CONCRETE GROUT: GROUT MIX SHALL BE AS SPECIFIED AND SHALL BE PLACED USING A CONCRETE PUMPER. GROUT SHALL FULLY ENCASE THE BOTTOM OF THE RIP RAP BUT NOT FULL TO THE TOP OF THE RIP RAP SO AS TO REDUCE THE ENERGY DISSIPATION CAPABILITIES. GROUT UPSTREAM OF THE WEIR SHALL BE SMOOTH FINISHED 1" BELOW THE CREST. GROUT SHALL ONLY BE PLACED IN THE

PRESENCE OF THE ENGINEER.

28 IA CS-005 POLLUTION CONTROL, SILT FENCE: THIS ITEM INCLUDES PROCUREMENT AND INSTALLATION OF SILT FENCE DITCH CHECKS AS SHOWN ON THE PLANS AND AS DETAILED.

29 IA CS-005 POLLUTION CONTROL, TURF REINFORCEMENT MAT, TYPE II: THIS ITEM INCLUDES PROCUREMENT AND INSTALLATION OF TYPE II TURF REINFORCING MAT IN ACOORDANCE WITH SUDAS 9040. INSTALLATION

SHALL BE PER THE MANUFACTURER’S RECOMMENDATIONS.

EV

ER

LY

A

VE

SB 3

SB 1

SB 2 SB 4

GRADING LIMITS

EXISTING STREAM

CENTERLINE

100-YEAR STORM

BOUNCE (TYP,)

LOCATE, CRUSH, AND BURY ALL TILE WITHIN

PROPOSED WETLAND POOL. FOR TILE RUNNING

UNDER THE WETLAND BERM, REMOVE TILE AND

BACKFILL TRENCH WITH CLAY EXTENDING 10

FEET BEYOND THE FOOTPRINT OF THE BERM.

EXISTING

FENCE LINE

EXISTING 12 INCH PLASTIC

TILE OUTLET TO CREEK

LOCATE EXISTING TILE FOR CONNECTIONS TO PROPOSED TILE

WHERE ELEVATIONS ALLOW. CRUSH AND BURY 10 FEET (MIN) TILE

DOWNSTREAM AND CAP UPSTREAM END OF TILE TO REMAIN.

WHERE ELEVATIONS DO NOT ALLOW, BRIDGE EXISTING TILE OVER

OR UNDER PROPOSED TILE AND MAINTAIN TILE DRAINAGE

AROUND WETLAND. COORDINATE WITH ENGINEER.

PROTECT ALL TILE TO REMAIN IN PLACE.

CONTRACTOR RESPONSIBLE FOR REMAIN OF

ANY DAMAGE CAUSED BY CONSTRUCTION AT

NO ADDITIONAL COST TO THE DIVISION. (TYP.)

SCARIFY 9" BELOW, REPLACE

9" & COMPACT WITHIN

BORROW AREA FOOTPRINT

SCARIFY 9" & RE-COMPACT

WITHIN ENTIRE POOL AREA

EASEMENT

BOUNDARY (TYP.)

LOCATE EXISTING TILE FOR CONNECTIONS TO PROPOSED TILE

WHERE ELEVATIONS ALLOW. CRUSH AND BURY 10 FEET (MIN) TILE

DOWNSTREAM AND CAP UPSTREAM END OF TILE TO REMAIN.

WHERE ELEVATIONS DO NOT ALLOW, BRIDGE EXISTING TILE OVER

OR UNDER PROPOSED TILE AND MAINTAIN TILE DRAINAGE

AROUND WETLAND. COORDINATE WITH ENGINEER.

PROPOSED DRAIN TILE

TO STREAM (TYP.)

STABILIZED LOW WATER CROSSING

125 TONS CLASS E RIP RAP, 40 TONS 2" CLEAN

STONE, AND 110 TONS EROSION STONE

- SEE DETAIL

STABILIZED LOW WATER CROSSING

125 TONS CLASS E RIP RAP, 40 TONS 2" CLEAN

STONE, AND 110 TONS EROSION STONE

- SEE DETAIL

30 TONS 2" CLEAN

STONE 12" THICK

CONSTRUCTION ENTRANCE

LOCATE, CRUSH, AND BURY ALL TILE WITHIN

PROPOSED WETLAND POOL. FOR TILE RUNNING

UNDER THE WETLAND BERM, REMOVE TILE AND

BACKFILL TRENCH WITH CLAY EXTENDING 10

FEET BEYOND THE FOOTPRINT OF THE BERM.

PROPOSED DRAIN TILE

TO POOL (TYP.)

LOCATE EXISTING TILE FOR CONNECTIONS TO PROPOSED TILE

WHERE ELEVATIONS ALLOW. CRUSH AND BURY 10 FEET (MIN) TILE

DOWNSTREAM AND CAP UPSTREAM END OF TILE TO REMAIN.

WHERE ELEVATIONS DO NOT ALLOW, BRIDGE EXISTING TILE OVER

OR UNDER PROPOSED TILE AND MAINTAIN TILE DRAINAGE

AROUND WETLAND. COORDINATE WITH ENGINEER.

LOCATE AND REMOVE

EXISTING TILE

NORTH

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 URE

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: CD01

EX

IS

TI

NG

CO

ND

IT

IO

NS

A

ND

RE

M O

VA

LS

DJ

J

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

D0

- E

XI

ST

IN

G C

O

ND

IT

IO

NS

A

ND

R

EM

O

VA

LS

.d wg

8/ 7/

0:

:4

AM

PROPERTY LINE (APPROX)

EXISTING CONTOUR - MAJOR

EXISTING CONTOUR - MINOR

LEGEND SURVEY NOTES:

1. LIMITED TOPOGRAPHIC SURVEY COMPLETED BY SHIVE-HATTERY ON

DECEMBER 8, 2022.

2. SUPPLEMENTAL EXISTING SURFACE INFORMATION SHOWN WAS

BASED ON LIGHT DETECTION AND RANGING (LIDAR) INFORMATION

FROM IOWA DNR (2020).

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, NORTH ZONE

VERTICAL DATUM - NAVD88

TILE INFORMATION

LIMITED TILE INVESTIGATION WAS COMPLETED BY SHIVE-HATTERY ON

JUNE 18, 2024. LOCATED TILE INFORMATION IS INCLUDED ON THIS

SHEET AT SELECT LOCATIONS. ALL OTHER TILE INFORMATION IS

APPROXIMATE AND WAS PROVIDED BY THE LANDOWNER.

EXISTING DRAIN TILE

EXISTING FENCE

SOIL BORING

SB

EASEMENT BOUNDARY

100-YEAR BOUNCE

SOILS NOTES:

1. STRIP AND STOCKPILE 12 INCHES OF TOPSOIL IN EMBANKMENT FOOTPRINT. STRIP 6 INCHES OF

TOPSOIL IN ALL OTHER DISTURBED AREAS. RESPREAD ALL TOPSOIL IN DISTURBED AREAS PRIOR

TO SEED BED PREPARATION AND SEEDING IN STRIPPED AREAS.

2. SCARIFY AND RE-COMPACT 9 INCHES OF SOIL IN ENTIRE WETLAND FOOTPRINT. ADDITIONALLY, IN

EXCAVATED AREAS WITHIN THE POOL, AN ADDITIONAL 9 INCHES OF SOIL. SCARIFY AND

RE-COMPACT 9 INCHES BELOW, REPLACE 9 INCHES, AND RE-COMPACT (18 INCH LINER IN TWO

LIFTS). RESPREAD TOPSOIL AFTER COMPLETION.

3. A GEOTECHNICAL REPORT WAS PREPARED BY TERRACON ON JANUARY 8, 2024.

PROPOSED DRAIN

TILE (TO POOL)

PROPOSED DRAIN

TILE (TO STREAM)

876.00 875.82

1.

4%

876.60 877.50

876.70

877.50

875.48

875.83 875.25

.0

SB 3

SB 1

SB 2 SB 4

GROUTED CLASS E RIP RAP LINED

PLUNGE POOL & ROCK CHUTE

BOTTOM = 873.00

TOTAL RIPRAP = 930 TONS

TOTAL GROUT = 198 CY

SHEET PILE WEIR OUTFLOW

CREST WIDTH = 80 FEET

CREST ELEVATION = 879.50

DROP HEIGHT = 3.0 FEET

INTERIOR WETLAND BERM

TOP WIDTH = 20 FEET

ELEVATION = 979.0

BORROW AREA FOOTPRINT

AREA = 2.5 ACRES

POOL DEPTH = 5.0 FEET MAX

CUT = 2-4 FEET

APPROXIMATE 100

YEAR STORM BOUNCE

ELEV = 882.00

TOP OF DAM ELEVATION

ELEV = 882.50

EASEMENT BOUNDARY

CMP STOP LOG STRUCTURE

AND DRAWDOWN PIPE

NORMAL WATER LEVEL

ELEV = 879.50

AREA = 9.97 ACRES

AUXILIARY SPILLWAY

ELEVATION = 881.50

WIDTH = 150 FEET

INSTALL 1430 SY OF

TRM TYPE II 35' WIDE SHALLOW SWALE TO

DRAIN AUXILIARY SPILLWAY TO

EXISTING CHANNEL

WETLAND FOREBAY

DEPTH = 4 FEET

150 TONS CLASS

E RIP RAP

STABILIZED LOW WATER CROSSING

125 TONS CLASS E RIP RAP, 40 TONS 2" CLEAN

STONE, AND 110 TONS EROSION STONE

- SEE DETAIL

STABILIZED LOW WATER CROSSING

LOCATED UPSTREAM NEAR ROADWAY

COORDINATE WITH OWNER

AUXILIARY SPILLWAY SEPARATION BERM

TOP WIDTH = 4 FEET

HEIGHT = 2 FEET

WETLAND FOREBAY

DEPTH = 4 FEET

150 TONS CLASS

E RIP RAP

150 TONS CLASS

E RIP RAP

150 TONS CLASS

E RIP RAP

SCARIFY 9" BELOW, REPLACE 9"

& COMPACT WITHIN BORROW

AREA FOOTPRINT

SCARIFY 9" & RE-COMPACT

WITHIN ENTIRE POOL AREA

TOP OF DAM

ELEVATION = 882.50

TOP WIDTH = 12 FEET

15 TONS CLASS E

RIP RAP

BORROW AREA FOOTPRINT

AREA = 1.2 ACRES

POOL DEPTH = 2 FEET MAX

CUT = 2 FEET

SCARIFY 9" BELOW, REPLACE 9"

& COMPACT WITHIN BORROW

AREA FOOTPRINT

MAX WATER DEPTH

DEPTH = 5.0 FEET

10' WIDE WAVE

BENCH

- SEE DETAIL

INSTALL SILT FENCE

ALONG EMBANKMENT

DOWNHILL SLOPE

ROCK CHUTE SEPARATION BERM

TOP WIDTH = 4 FEET

HEIGHT = 2 FEET

TILE COVER BERM

TILE COVER BERM

15 TONS CLASS

E RIP RAP

15 TONS CLASS E

RIP RAP

EXISTING CONTOUR - MAJOR

EXISTING CONTOUR - MINOR

EXISTING STREAM

NORTH

PROPOSED LINE TYPEDESCRIPTION

TOP OF DAM ELEVATION

NORMAL WATER ELEVATION

MAJOR CONTOUR

MINOR CONTOUR

PROPOSED TILE (TO POOL)

EXISTING TILE

WATER LEVEL CONTROL STRUCTURE

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 URE

L A

ND

S

TEWARDSHIP

RIP RAP

LEGEND

100 - YEAR TEMPORARY HIGH WATER

WETLAND PARAMETERS

DRAINAGE AREA (TILE) = 631 ACRES

NORMAL POOL AREA = 9.97 ACRES (INCLUDES FOREBAYS)

SA/DA RATIO = 1.61%

<3' DEPTH (AT NWL) = 7.85 ACRES (78.74%)

>3' DEPTH (AT NWL) = 2.28 ACRES (21.26%)

HYDRAULIC PARAMTERS

SHEET PILE WEIR ELEVATION = 879.50

AUXILIARY SPILLWAY ELEVATION = 881.50

TOP OF BERM ELEVATION = 882.50

STORAGE AT NWL = 18.90 ACRE-FEET

STORAGE AT TOP OF DAM = 66.27 ACRE-FEET

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: C201

O

VE

RA

LL

G

RA

DI

NG

PL

AN

DJ

J

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

G ra di ng

P la n.

dw g 8/

7/

0:

:5

AM

PROPOSED TILE (TO STREAM)

876.00 875.82

1.

4%

876.60 877.50

876.70

877.50

875.48

875.83 875.25

.0

SB 3

SB 1

SB 2 SB 4

6" NON-PERFORATED DUAL WALL HDPE

81 LF @ 0.3%

START IE = 878.2

END IE = 877.9

6" NON-PERFORATED DUAL WALL HDPE

466 LF @ 0.3%

START IE = 877.9

END IE = 876.3

6" NON-PERFORATED DUAL WALL HDPE

64 LF @ 0.4%

START IE = 876.3

END IE = 876.0

6" NON-PERFORATED DUAL WALL HDPE

494 LF @ 0.4%

START IE = 876.0

END IE = 874.1

6" NON-PERFORATED DUAL WALL HDPE

75 LF @ 0.2%

START IE = 880.7

END IE = 880.5

6" DUAL WALL HDPE

132 LF @ 0.3%

START IE = 881.6

END IE = 881.2

6" DUAL WALL HDPE

36 LF @ 0.3%

START IE = 880.7

END IE = 880.6

6" DUAL WALL HDPE

10 LF @ 0.2%

START IE = 880.6

END IE = 880.5

6" DUAL WALL HDPE W/ POROUS BACKFILL

225 LF @ 0.3%

START IE = 883.6

END IE = 882.9

6" DUAL WALL HDPE W/ POROUS BACKFILL

180 LF @ 0.3%

START IE = 882.9

END IE = 882.4

6" DUAL WALL HDPE W/ POROUS BACKFILL

121 LF @ 0.3%

START IE = 882.4

END IE = 882.0

6" DUAL WALL HDPE W/ POROUS BACKFILL

150 LF @ 0.3%

START IE = 882.0

END IE = 881.6

6" DUAL WALL HDPE W/ POROUS BACKFILL

130 LF @ 0.3%

START IE = 881.6

END IE = 881.2

6" DUAL WALL HDPE W/ POROUS BACKFILL

193 LF @ -0.3%

START IE = 881.2

END IE = 880.6

8" CMP TILE OUTLET

20 LF @ 0.3%

START IE = 874.1

END IE = 874.0

6" DUAL WALL HDPE W/ POROUS BACKFILL

113 LF @ 0.3%

START IE = 880.9

END IE = 880.6

6" DUAL WALL HDPE W/ POROUS BACKFILL

98 LF @ 0.3%

START IE = 880.6

END IE = 880.2

6" DUAL WALL HDPE W/ POROUS BACKFILL

123 LF @ 0.3%

START IE = 880.2

END IE = 879.9

6" DUAL WALL HDPE W/ POROUS BACKFILL

136 LF @ 0.3%

START IE = 879.9

END IE = 879.5

6" DUAL WALL HDPE W/ POROUS BACKFILL

148 LF @ 0.3%

START IE = 879.5

END IE = 879.1

6" DUAL WALL HDPE W/ POROUS BACKFILL

127 LF @ 0.3%

START IE = 879.1

END IE = 878.7

6" NON-PERFORATED DUAL WALL HDPE

86 LF @ 0.6%

START IE = 878.7

END IE = 878.2

6" DUAL WALL HDPE W/ POROUS BACKFILL

75 LF @ 0.4%

START IE = 881.2

END IE = 880.9

6" NON-PERFORATED DUAL WALL HDPE

91 LF @ 1.6%

START IE = 882.1

END IE = 880.7

6" DUAL WALL HDPE

107 LF @ 1.6%

START IE = 882.9

END IE = 881.2

4" DUAL WALL HDPE

708 LF @ 0.2%

START IE = 879.9

END IE = 878.7

4" DUAL WALL HDPE

486 LF @ 0.3%

START IE = 880.8

END IE = 879.5

6" DUAL WALL HDPE

100 LF @ 1.1%

START IE = 884.0

END IE = 882.9

6" DUAL WALL HDPE

100 LF @ 2.0%

START IE = 886.0

END IE = 884.0

6" DUAL WALL HDPE

106 LF @ 2.1%

START IE = 888.3

END IE = 886.0

6" DUAL WALL HDPE

175 LF @ 0.3%

START IE = 881.2

END IE = 880.7

8" CMP TILE OUTLET

20 LF @ 0.2%

START IE = 880.5

END IE = 880.5

6" DUAL WALL HDPE

330 LF @ 0.2%

START IE = 881.2

END IE = 880.6

8" CMP TILE OUTLET

20 LF @ 0.3%

START IE = 880.6

END IE = 880.5

8" CMP TILE OUTLET

20 LF @ 0.2%

START IE = 880.5

END IE = 880.5

8" CMP TILE OUTLET

20 LF @ -0.3%

START IE = 880.6

END IE = 880.5

NORTH

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 URE

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: C202

PR

O

PO

SE

D

TI

LE

PL

AN

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

G ra di ng

P la n.

dw g 8/

7/

0:

:5

AM

TILE NOTES:

1. THE INVERT ELEVATIONS FOR PROPOSED DRAIN TILES ON THIS PLAN

ARE BASED ON ASSUMED DEPTHS OF EXITING DRAIN TILES.

CONTRACTOR TO LOCATE AND CONNECT PROPOSED DRAIN TILES TO

EXISTING TILES, COORDINATE WITH ENGINEER.

2. INTERCEPT ALL CROSSING TILES AND CAP DOWNSTREAM ENDS

3. TILE TO BE PERFORATED IF NOT SPECIFIED AS NON-PERFORATED.

EXISTING CONTOUR - MAJOR

EXISTING CONTOUR - MINOR

EXISTING STREAM

PROPOSED LINE TYPEDESCRIPTION

TOP OF DAM ELEVATION

NORMAL WATER ELEVATION

MAJOR CONTOUR

MINOR CONTOUR

PROPOSED TILE (TO POOL)

EXISTING TILE

WATER LEVEL CONTROL STRUCTURE

RIP RAP

LEGEND

100 - YEAR TEMPORARY HIGH WATER

876.00

875.82

1.

4%

876.60 877.50

876.70

877.50

875.48

875.83 875.25

.0

SB 3

SB 1

SB 2 SB 4

GROUTED CLASS E RIP RAP LINED PLUNGE

POOL & ROCK CHUTE

BOTTOM = 873.00

TOTAL RIPRAP = 930 TONS

TOTAL GROUT = 198 CY

SHEET PILE WEIR OUTFLOW

CREST WIDTH = 80 FEET

CREST ELEVATION = 879.50

DROP HEIGHT = 3.0 FEET

INTERIOR WETLAND BERM

TOP WIDTH = 20 FEET

ELEVATION = 979.0

BORROW AREA FOOTPRINT

AREA = 2.5 ACRES

POOL DEPTH = 5.0 FEET MAX

CUT = 2-4 FEET

APPROXIMATE 100

YEAR STORM BOUNCE

ELEV = 882.00

TOP OF DAM ELEVATION

ELEV = 882.50

EASEMENT BOUNDARY

CMP STOP LOG STRUCTURE

AND DRAWDOWN PIPE

NORMAL WATER LEVEL

ELEV = 879.50

AREA = 9.97 ACRES

AUXILIARY SPILLWAY

ELEVATION = 881.50

WIDTH = 150 FEET

INSTALL 1430 SY OF TRM TYPE II 35' WIDE SHALLOW SWALE TO

DRAIN AUXILIARY SPILLWAY TO

EXISTING CHANNEL

WETLAND FOREBAY

DEPTH = 4 FEET

150 TONS CLASS E

RIP RAP

WETLAND FOREBAY

DEPTH = 4 FEET

150 TONS CLASS

E RIP RAP

150 TONS CLASS

E RIP RAP

150 TONS CLASS

E RIP RAP

SCARIFY 9" BELOW, REPLACE 9"

& COMPACT WITHIN BORROW

AREA FOOTPRINT

SCARIFY 9" & RE-COMPACT

WITHIN ENTIRE POOL AREA

TOP OF DAM

ELEVATION = 882.50

TOP WIDTH = 12 FEET

15 TONS CLASS E RIP

RAP

BORROW AREA FOOTPRINT

AREA = 1.2 ACRES

POOL DEPTH = 2 FEET MAX

CUT = 2 FEET

SCARIFY 9" BELOW, REPLACE 9"

& COMPACT WITHIN BORROW

AREA FOOTPRINT

MAX WATER DEPTH

DEPTH = 5.0 FEET

10' WIDE WAVE BENCH

- SEE DETAIL

INSTALL SILT FENCE ALONG

EMBANKMENT DOWNHILL

SLOPE

15 TONS CLASS E

RIP RAP

15 TONS CLASS E RIP

RAP

NORTH

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 URE

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

G

RA

DI

NG

P

LA

N G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

G ra di ng

P la n.

dw g 8/

7/

0:

:5

AM

EXISTING CONTOUR - MAJOR

EXISTING CONTOUR - MINOR

EXISTING STREAM

PROPOSED LINE TYPEDESCRIPTION

TOP OF DAM ELEVATION

NORMAL WATER ELEVATION

MAJOR CONTOUR

MINOR CONTOUR

PROPOSED TILE (TO POOL)

EXISTING TILE

WATER LEVEL CONTROL STRUCTURE

RIP RAP

LEGEND

100 - YEAR TEMPORARY HIGH WATER

876.00 875.82

1.

4%

876.60 877.50

876.70

877.50

875.48

875.83 875.25

.0

SB 3

SB 1

SB 2 SB 4

NORTH

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 URE

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: C204

CU

T-

FI

LL

P

LA

N G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

G ra di ng

P la n.

dw g 8/

7/

0:

:0

AM

ELEVATIONS TABLE

CUT/FILL

MINIMUM

ELEVATION (FT)

MAXIMUM

ELEVATION (FT) COLOR

CUT -6.0 -5.0

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

EARTHWORK TABLE

CLASSIFICATION CY

EARTHFILL (GENERAL) 2,431

EARTHFILL (GENERAL DAM) 9,885

EARTHFILL (DAM CORE) 3,026

2+50

0+00

1+00

2+00

2+00

3+

4+

5+

6+

7+

8+

9+00

10+00 10+50

0+

1+

2+

3+

4+

5+

6+

7+

7+

0+

1+

2+

3+

4+

5+

0+00 1+00 2+00 3+00 4+00

5+00

6+00 7+00

8+

9+00

10+00

11+00

12+00 13+00

+0

+0

+0

+0

+0

+0

+0

+0

22+00

23+00

24+00

0+00

0+

.6

SB 3

SB 1

SB 2 SB 4

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 10+00.00 11+00.00 12+00.00 13+00.00 14+00.00 15+00.00 16+00.00 17+00.00 18+00.00 19+00.00 20+00.00 21+00.00 22+00.00 23+00.00

AUXILIARY SPILLWAY

CREST ELEV = 881.50

WIDTH = 150 FEET

PROPOSED TOP OF DAM

ELEVATION = 882.50

TOP WIDTH = 12 FEET

PROPOSED SHEET PILE STRUCTURE

WEIR WIDTH = 80 FEET

- SEE C401

OVERBUILD EMBANKMENT TO

ACCOMMODATE FOR FUTURE SETTLEMENT

ELEVATION = 882.9'

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 URE

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: C301

EM

BA

NK

M

EN

T

PL

AN

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

O

UT

LE

T

CH

AN

NE

L

PL

AN

A

ND

P

RO

FI

LE

.d wg

8/ 7/

0:

:0

AM

NORTH

HORIZONTAL SCALE:VERTICAL SCALE:

0+00.00 1+00.00 2+00.00 2+50.00

STA 0+42.12

EL 874.50

STA 0+57.12

EL 879.50

STA 0+63.12

EL 879.50

STA 0+63.33

EL 874.35

STA 0+63.14

EL 876.50 STA 0+90.56

EL 876.50

STA 1+34.46

EL 873.00 STA 1+58.46

EL 873.00

STA 1+60.79

EL 873.93

.3

9.4%

SHEET PILE CREST

ELEVATION = 879.50

BOTTOM OF SHEET PILE

ELEVATION = 870.0

- SEE C401

EXISTING CHANNEL GRADE

24'

2.00'

GROUTED RIP RAP ROCK CHUTE. PLACE 730 TONS OF

CLASS E RIP RAP 2' THICK. GROUT IN PLACE WITH 153 CY

CONCRETE GROUT. GROUT SHALL LOCK IN BASE OF RIP RAP

LEAVING A ROUGH SURFACE FOR ENERGY DISSIPATION. DO

NOT CREATE A SMOOTH SURFACE WITH GROUT.

3.

D

R O

P H

EI

G

H T

BOTTOM OF PLUNGE POOL

ELEVATION = 873.00

WETLAND NWL

ELEVATION = 879.50

200 TONS OF CLASS 'E' REVETMENT OVER

NON-WOVEN GEOTEXITLE FABRIC - GROUT (45 CY) - TOP

OF REVETMENT TO BE 0.1' LOWER THAN SHEET

PILE CREST - GROUT SURFACE SHALL BE SMOOTH

25'

28.00'

0+00

1+00

2+00

0+00

0+95.61

SB 1

SB 2

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 URE

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: C302

PR

IN

CI

PA

L

SP

IL

LW

AY

P

LA

N

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

O

UT

LE

T

CH

AN

NE

L

PL

AN

A

ND

P

RO

FI

LE

.d wg

8/ 7/

0:

:0

AM

HORIZONTAL SCALE:

VERTICAL SCALE:

1+00

2+ 00 2+50

SB 1

54 LF 18" CMP DRAWDOWN PIPE @ 0.00%

38 LF 18" CMP DRAWDOWN PIPE @ 0.00%

47 LF 18" CMP DRAWDOWN PIPE @ 0.00% 17 LF 18" CMP DRAWDOWN PIPE @ 0.00%

0+00.00 1+00.00 2+00.00 2+50.00

12.00'

TOP WIDTH

SCARIFY, MOISTURE CONDITION

AND RECOMPACT 9" LAYER ON

BOTTOM OF WETLAND POOL

- SEE LIMITS ON C201

WETLAND NWL

ELEV = 879.50

PROPOSED WETLAND BOTTOM

GRADE AT CENTERLINE OF

DRAWDOWN STRUCTURE

25 TONS CLASS 'E' RIP RAP MOUNDED

AROUND INTAKE RISER. PLACE WITH CARE

TO ENSURE INTEGRITY OF CMP PIPE

PROPOSED

GROUND

EXISTING

GROUND

PROPOSED PLUNGE POOL

BOTTOM ELEVATION = 873.00

- SEE C302

6' X 6' CMP

ANT-SEEP COLLARS

- SEE DETAIL

25.00'

MAX SPACING

48" CMP WATER LEVEL CONTROL STRUCTURE

INSTALL STOP LOGS TO 878.50

RIM ELEVATION = 883.50

REINFORCED CONCRETE

FES FOOTING

54 LF 18" CMP DRAWDOWN PIPE @ 0.00% 38 LF 18" CMP DRAWDOWN PIPE @ 0.00% 47 LF 18" CMP DRAWDOWN PIPE @ 0.00%47 LF 18" CMP DRAWDOWN PIPE @ 0.00%47 LF 18" CMP DRAWDOWN PIPE @ 0.00% 17 LF 18" CMP DRAWDOWN PIPE @ 0.00%

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 URE

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: C303

DR

AW

DO

W

N

ST

RU

CT

UR

E

PL

AN

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

O

UT

LE

T

CH

AN

NE

L

PL

AN

A

ND

P

RO

FI

LE

.d wg

8/ 7/

0:

:0

AM

NORTH

HORIZONTAL SCALE:

2+50

1+00

2+00

1.2

1.3

1.1

0+00.00 1+00.00 2+00.00 2+50.00

-25.00%

-0.58%

1.3 91LF

6" NON-PERFORATED DUAL WALL HDPE @ 1.4%

START IE = 882.1

END IE = 880.8

1.2 75LF

6" NON-PERFORATED DUAL WALL HDPE @ 0.3%

START IE = 880.8

END IE = 880.6

1.1 20LF

8" CMP TILE OUTLET @ 0.3%

START IE = 880.6

END IE = 880.5

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 URE

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: C304

DR

AI

N

TI

LE

P

LA

N

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 8/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

PI

PE

P

LA

N

AN

D

PR

O

FI

LE

.d wg 8/

/2

1:

:0

PM

NORTH

HORIZONTAL SCALE:

2+00 3+00

4+00 5+00 6+00 7+00 8+00

4+00

5+002.12

2.11 2.10

2.9 2.8 2.72.13

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

2.13 75LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.4%

START IE = 881.2

END IE = 880.9

2.7 127LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 879.1

END IE = 878.7

2.8 148LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 879.5

END IE = 879.1

2.9 136LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 879.9

END IE = 879.5

2.10 123LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 880.2

END IE = 879.9

2.11 98LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 880.6

END IE = 880.2

2.12 113LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 880.9

END IE = 880.6

8+00.00 9+00.00 10+00.00 11+00.00 12+00.00 13+00.00

2.5 81LF

6" NON-PERFORATED DUAL WALL HDPE @ 0.4%

START IE = 878.2

END IE = 877.9

2.4 466LF

6" NON-PERFORATED DUAL WALL HDPE @ 0.4%

START IE = 877.9

END IE = 876.2

2.6 86LF

6" NON-PERFORATED DUAL WALL HDPE @ 0.6%

START IE = 878.7

END IE = 878.2

8+

9+

10+00

11+00 12+00 13+00

2.5

2.44.

3.2

5.2

2.

2.

3.1

4.

5.1

13+00.00 14+00.00 15+00.00 16+00.00 17+00.00 18+00.00 19+00.00 20+00.00 21+00.00

2.1 20LF

8" CMP TILE OUTLET @ 0.4%

START IE = 874.1

END IE = 874.0

2.3 64LF

6" NON-PERFORATED DUAL WALL HDPE @ 0.4%

START IE = 876.2

END IE = 875.9

2.2 494LF

6" NON-PERFORATED DUAL WALL HDPE @ 0.4%

START IE = 875.9

END IE = 874.1

13+00

14+00

15+00

16+00 17+00 18+00 19+00 20+00

+0

2.3

2.2

2.

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 URE

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: C305

DR

AI

N

TI

LE

P

LA

N

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 8/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

PI

PE

P

LA

N

AN

D

PR

O

FI

LE

.d wg 8/

/2

1:

:1

PM

N O

R

TH

HORIZONTAL SCALE:VERTICAL SCALE:

2+00

3+00

4+00

5+00

6+00

7+00

8+00

8+50

2.5

4.

3.2

2.

3.4

3.3

3.7

3.6

3.5

4.3

3.1

4.

5.1

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 8+50.00

-0.18% -25.00%

3.2 10LF

6" DUAL WALL HDPE @ 0.3%

START IE = 880.6

END IE = 880.6

3.4 107LF

6" DUAL WALL HDPE @ 1.4%

START IE = 882.9

END IE = 881.4

3.7 106LF

6" DUAL WALL HDPE @ 2.1%

START IE = 888.3

END IE = 886.0

3.6 100LF

6" DUAL WALL HDPE @ 2.0%

START IE = 886.0

END IE = 884.0

3.5 100LF

6" DUAL WALL HDPE @ 1.1%

START IE = 884.0

END IE = 882.9 3.3 330LF

6" DUAL WALL HDPE @ 0.3%

START IE = 881.4

END IE = 880.6

3.1 20LF

8" CMP TILE OUTLET @ 0.3%

START IE = 880.6

END IE = 880.5

0+00.00 1+00.00 2+00.00 3+00.00 4+00.00

-25.00%

-0.30%

4.2 36LF

6" DUAL WALL HDPE @ 0.3%

START IE = 880.7

END IE = 880.6

4.4 132LF

6" DUAL WALL HDPE @ 0.3%

START IE = 881.6

END IE = 881.2

4.1 20LF

8" CMP TILE OUTLET @ 0.3%

START IE = 880.6

END IE = 880.5

4.3 175LF

6" DUAL WALL HDPE @ 0.3%

START IE = 881.2

END IE = 880.7

0+00

1+00 2+00

3+00

4+

+5

2.

4.4

4.2

4.3

4.1

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 URE

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: C306

DR

AI

N

TI

LE

P

LA

N

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 8/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

PI

PE

P

LA

N

AN

D

PR

O

FI

LE

.d wg 8/

/2

2:

:3

PM

NORTH

HORIZONTAL SCALE:VERTICAL SCALE:

2+00

3+00 4+00

5+00

6+00

7+00

5.7

5.6

5.5

5.4

2.9

2.8

0+00.00 1+00.00 2+00.00 3+00.00 4+00.00 5+00.00 6+00.00 7+00.00

5.7 225LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 883.6

END IE = 882.9

5.6 180LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 882.9

END IE = 882.4

5.5 121LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 882.4

END IE = 882.0

5.4 150LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 882.0

END IE = 881.6

7+00.00 8+00.00 9+00.00 10+00.00 10+50.00

5.1 20LF

8" CMP TILE OUTLET @ -0.3%

START IE = 880.6

END IE = 880.5

5.3 130LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ 0.3%

START IE = 881.6

END IE = 881.2

5.2 193LF

6" DUAL WALL HDPE W/ POROUS BACKFILL @ -0.3%

START IE = 881.2

END IE = 880.6

6+00

7+00

8+00

9+00

10+00

10+50

2.5

4.2

3.2

5.4

5.3 5.2

2.7

2.6

3.1 4.1

5.1

N O

R

TH

HORIZONTAL SCALE:VERTICAL SCALE:

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 URE

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: C307

DR

AI

N

TI

LE

P

LA

N

AN

D

PR

O

FI

LE

G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 8/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

PI

PE

P

LA

N

AN

D

PR

O

FI

LE

.d wg 8/

/2

1:

:2

PM

N O

R

TH

6+75.00 7+00.00 8+00.00 9+00.00

6.

5'

E M

BE

D

D

ED

D

EP

TH

10.00' 10.00'

9.

19.00'

80.00'

3.

'3

118.00'

BOLTED WALER OPTION DETAIL

C401

B

SHEET PILE GENERAL NOTES:

SHEET PILE CENTERLINE PROFILE

B B

B - B

B - B

8"

*NOTE: SHEET PILE BEYOND NOT SHOWN.

1. DESIGN SHEET PILE AREA IS 1094 SF AFTER TRIMMING

2. SHEET PILING REQUIREMENTS DESIGN BASIS - SKYLINE STEEL/NUCOR SCZ14 OR ENGINEER APPROVED

EQUAL

2.1. MINIMUM SECTION MODULUS OF 14.36IN3 PER FOOT OF WALL.

2.2. MINIMUM GRADE OF STEEL IS 50 KSI

2.3. MINIMUM MOMENT OF INERTIA OF 71.82 IN4 PER FOOT OF WALL.

2.4. MINIMUM THICKNESS OF 0.25"

2.5. ALL SHEET PILING SHALL MEET ASTM A-572 GR50.

2.6. ALL BOLTS SHALL MEET ASTM A307 GRADE A.

2.7. ALL WASHERS SHALL MEET ASTM F436.

2.8. ALL NUTS SHALL MEET ASTM A563.

3. CONTRACTOR SHALL SUBMIT DETAILED SHOP DRAWINGS OF PROPOSED SHEET PILE SYSTEM FOR

APPROVAL BY ENGINEER.

4. SHEET PILE ATTACHMENT TO WALER:

4.1. SHEET PILE WALER/PILE CAP MAY BE BOLTED OR WELDED. SEE DETAILS FOR OPTIONS.

4.2. BOLTED WALER OPTION

4.2.1. ALL BOLTS WILL BE 1'' DIAMETER WITH 2 WASHERS. BOLT SHALL BE EXTENDED AT A MINIMUM OF 3 8 ''

BEYOND THE NUT.

4.2.2. ALL HOLES SHALL BE FIELD DRILLED TO 1 1

16" DIAMETER. TORCH, PLASMA CUTTING, OR OTHER

METHODS RESULTING IN AN IMPERFECT HOLE WILL NOT BE PERMITTED.

4.2.3. THE WALER SHALL BE PLACED ON THE DOWNSTREAM SIDE OF THE WEIR.

4.3. WELDED PILE CAP OPTION

4.3.1. AT THE CONTRACTORS OPTION, A WELDED PILE CAP MAY BE INSTALLED IN LIEU OF THE BOLTED

WALER. SEE PILE CAP OPTION DETAIL.

4.3.2. WELDING SHALL BE IN ACCORDANCE WITH THE STRUCTURAL WELDING CODE, AWS D1.1, LATEST

EDITION, AND SHALL BE PERFORMED BY CERTIFIED WELDERS ONLY USING E70XX ELECTRODES.

5. ANY HOLES LEFT IN SHEET PILE SHALL BE CLOSED OFF.

6. AFTER SHEETING AND WALER INSTALLATION, ALL SHEETING IS TO BE CUT TO CONFORM WITH THE 3:1 SIDE SLOPE OF THE WEIR, MEET DESIGN ELEVATIONS, AND TO REMOVE ANY DAMAGE CAUSED BY DRIVING.

7. STRUCTURAL STEEL SHALL BE FABRICATED AND ERECTED IN ACCORDANCE WITH THE LATEST SPECIFICATION OF AISC. FABRICATOR SHALL SUBMIT SHOP DRAWINGS AND FABRICATE AFTER ENGINEER'S

REVIEW AND APPROVAL.

8. IT IS THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE ALLOWABLE CONSTRUCTION LIVE LOADS.

9. PROVIDE ALL NECESSARY TEMPORARY BRACING, SHORING, GUYING, OR OTHER MEANS TO AVOID EXCESSIVE STRESSES AND TO HOLD STRUCTURAL ELEMENTS IN PLACED DURING CONSTRUCTION.

10. A TEMPORARY BERM TO HOLD / GUIDE SHEETPILE DURING CONSTRUCTION IS RECOMMENDED.

11. NOTIFY ENGINEER IMMEDIATELY IF BEDROCK IS ENCOUNTERED PRIOR TO INSTALLATION OF SHEET PILE TO

DESIGN DEPTHS.

SECTION E-E

E

E

WELDED PILE CAP OPTION DETAIL

C401

A

SHEET PILE SPLICEC10X15.3 WALER

1" DIAMETER BOLT WITH 2

WASHERS. 1 BOLT TO BE PLACED

ON EACH SIDE OF SPLICE

C10X15.3 WALER

1 116'' DIAMETER HOLE (BOLTED OPTION)

WALER SPLICE

4" FILLET WELD

ALL AROUND

PL 3 8x8x8

MITER CUT AND

WELD PILE CAP

AT TRAPEZOIDAL

WEIR CORNERS

FILLET WELD EACH

SHEET PILE SECTION

TO CAP ANGLE.

PL 38 X 2 X CONTINUOUS

(2) L5 X 5 X 38 STEEL

ANGLES ALONG ENTIRE

SHEET PILE LENGTH.

16" FILLET WELD,

CONTINUOUS, BOTH SIDESTOP OF BERM

ELEV = 882.50

PROPOSED DOWNSTREAM GRADES

BOTTOM OF PLUNGE POOL

EXISTING GRADE

SHEET PILE WEIR

1094 SF AFTER TRIMMING

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

PR

EL

IM

IN

AR

Y

- N O

T

FO

R C

O N

ST

R

U C

TI

O

N 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 URE

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: C401

SH

EE

T

PI

LE

D

ES

IG

N G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

Sh ee tP ile

.d wg

8/ 7/

0:

:1

AM

WEIR CREST

ELEV = 879.50

80.00'

PROPOSED BOTTOM

OF SHEET PILE

ELEVATION = 870.00

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

IC

KN

ES

S

FO

R

SI

G N

P

O

ST

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 URE

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: C501

CO

NS

TR

UC

TI

O

N

DE

TA

IL

S G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

CO

NS

TR

UC

TI

O

N

DE

TA

IL

S.

dw g 8/

7/

0:

:1

AM

NWL = 879.50

PROPOSED GROUND

EXISTING GROUND (VARIES)

ELEV = 879.25

10' MINIMUM

REFER TO GRADING PLAN

WAVE BENCH

A1 WAVE PROTECTION BENCH AT NWL

ELEV = 879.75

EXISTING GROUND

TIE INTO EXISTING TILE AS

DETAILED -

FIELD VERIFY LOCATION

AND DEPTHS

NWL = 879.50

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

D2 TILE OUTLET AT WETLAND

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 = 880.50

A4 PROJECT SIGN

1.

N O

R M

AL

F

LO

W

D

EP

TH

2'

D4 TILE OUTLET TO STREAM

MATCH

INVERTS

SEAL CONNECTION WITH FERNCO COUPLER OR APPROVED

EQUAL AND INSTALL 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.

12" DUAL WALL

HDPE PIPE

LAST 20 LF TO BE 15" 16 GA

ALUMINIZED CMP

STREAMBANK

GRADE. LAY

BACK AT 3 TO 1

OR FLATTER.

CLASS 'E' RIP RAP

OVER GEOTEXTILE

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 URE

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: C502

CO

NS

TR

UC

TI

O

N

DE

TA

IL

S G

HK

DJ

J

FI

NA

L

DE

SI

G

N

8/ 7/

BU

C

D

W

ET

LA

N

D

ID

AL

S

BU

CH

AN

AN

C O

UN

TY

, I O

W A

P:

\P ro je ct s\

DM

\2

0\ De liv er ab le s\ Dr aw in gs \B uc ha na n\

1_ Ci vil \C

1-

CO

NS

TR

UC

TI

O

N

DE

TA

IL

S.

dw g 8/

7/

0:

:1

AM

SECTIONAL ELEVATION A-A

RISER DETAIL

7.0'

NOTES:

1) PROVIDE STRUCTURE SHOP DRAWINGS FOR ENGINEERS REVIEW AND

APPROVAL BEFORE FABRICATION OF WATER CONTROL STRUCTURE.

2) WATER CONTROL STRUCTURE TO BE PRE FABRICATED CORRUGATED

METAL RISER STRUCTURE WITH WATERTIGHT SEALS AT SECTION JOINTS

AND PIPE PENETRATIONS.

3) STOP LOG CHANNEL IS TO BE…