Plans.pdf

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

NUTRIENT REDUCTION WETLAND

SHEET NO. SHEET NAME

CONTACT INFO:

SCALE: N.T.S.

CHICKASAW COUNTY, IOWA

CLIENT PROJECT NO.: CHI941410B

JEO PROJECT NO.: 241731.01

SEC10/T94N/R14W

OWNER:

ADDRESS: CONTACT INFO:

HOOVER STATE OFFICE BUILDING

1305 E. WALNUT STREET

DES MOINES, IA 50319

MIKE BOURLAND

MIKE.BOURLAND@IOWAAGRICULTURE.GOV

P:515.242.6130

ADDRESS: CONTACT INFO:

JEO CONSULTING GROUP

1937 N CHESTNUT ST

WAHOO, NE 68066

JACOB MIRIOVSKY, PE

JMIRIOVSKY@JEO.COM

P: 402.367.2540

DANNON MOHS

DANNON.MOHS@MIDAMERICAN.COM

P:641.330.3993

A.1 COVER SHEET & LOCATION MAP

B.1 TYPICAL CROSS SECTION DETAILS

B.2 TYPICAL CROSS SECTION DETAILS

C.1 CONSTRUCTION NOTES, SYMBOLS, & TABULATIONS

CG.1 SURVEY CONTROL

D.1 EXISTING SITE PLAN

D.2 OVERALL PROPOSED SITE PLAN

D.3 PROPOSED GRADING PLAN

M.1 PLAN & PROFILE - DAM STRUCTURE

M.2 PLAN & PROFILE - PRINCIPAL SPILLWAY

M.3 PLAN & PROFILE - DRAWDOWN STRUCTURE

R.1 SEEDING & EROSION CONTROL PLAN

U.1 - U.4 DETAILS

LOCATION MAP

CONTACTS

INDEX OF SHEETS

UTILITIES

ELECTRIC:

PROJECT ENGINEER:

Dr aw ing N am e:

A Sh ee ts

-E ng

-C ov er x3 4.d wg Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

Additional Project Info:

A.1

COVER SHEET & LOCATION MAP

PROJECT LOCATION,

CHICKASAW COUNTY

CHICKASAW COUNTY

N

NOTE: NEITHER THE OWNER (CLIENT) NOR JEO CONSULTING GROUP, INC. ASSUMES ANY RESPONSIBILITY FOR UTILITY LOCATIONS BEING ACCURATELY SHOWN OR NOT SHOWN ON THE PLANS. A REQUEST FOR UTILITY LOCATES WAS MADE FOR

THIS LOCATION AS PER THE ONE-CALL NOTIFICATION SYSTEM ACT.

(DATE: TICKET NO.: ).

UTILITIES SHOWN ARE FROM FIELD MARKINGS PROVIDED IN THE FIELD BY THE UTILITY PROVIDERS.

THE EXACT LOCATION AND/OR SIZE OF UNDERGROUND FEATURES MAY NOT BE ACCURATELY, COMPLETELY AND RELIABLY DEPICTED. FIELD VERIFICATION OF UTILITIES MAY BE REQUIRED. CONTRACTOR(S) SHALL NOTIFY THE RESPECTIVE UTILITY

COMPANIES BEFORE COMMENCING ANY WORK.

CULTURAL RESOURCES NOTE:

IF CULTURAL RESOURCES ARE IDENTIFIED DURING CONSTRUCTION, WORK WILL

STOP IMMEDIATELY AND THE NRCS ARCHAEOLOGIST WILL BE NOTIFIED.

CONTRACTOR IS RESPONSIBLE FOR CALLING IOWA ONE CALL PRIOR TO CONSTRUCTION. RECORD ONE

CALL TICKET NUMBER(S).

TICKET NO.:

I HAVE REVIEWED AND AGREE WITH THE CONTENT OF THE PLAN AND

SPECIFICATIONS AS PREPARED:

CLIENT

REPRESENTATIVE:____________________________________________________________________________

NAME DATE

NRCS ENGINEER JOB CLASS IV

THE CURRENT NRCS STANDARD SPECIFICATIONS SHALL TO CONSTRUCTION WORK ON THIS PROJECT.

CPS-656 CONSTRUCTED WETLAND

CPS-410 GRADE STABILIZATION STRUCTURE

ENGINEER'S SIGNATURE:____________________________________________________________________________

NAME DATE

TO THE BEST OF MY PROFESSIONAL KNOWLEDGE, JUDGMENT, AND BELIEF, THE DESIGN MEETS NRCS STANDARD AND

SPECIFICATIONS AND COMPLIES WITH ALL APPLICABLE LAWS AND REGULATIONS.

PROJECT SPONSOR

THERE IS NO GUARANTEE THAT THE WETLAND WILL FILL OR REMAIN FILLED WITH WATER.

Pages or sheets covered by this seal:

My license renewal date is

(signature) (date)

I hereby certify that this engineering document 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.

Printed or typed name:

License Number:

JACOB T.

MIRIOVSKY

24242

L I C

E N

S E D

P

ROFE S S I ON AL E N G

I N E E R

I OWA

Jacob T. Miriovsky

24242

December 31, 2026.

ALL SHEETS

6/15/2026

6/15/2026 http://www.jeo.com

BOTTOM OF PILE

992.00

TOP OF RIPRAP

1005.25

CHANNEL FLOOR

999.70

20'-0"

L

SCALE:

SECTION B-B

N.T.S.

SCALE:

SECTION A-A

N.T.S.

2'- 0"

20'-0"

L2'-

0" SPILLWAY CREST

1107.00

CHANNEL FLOOR

1000.00

SCALE:

SECTION C-C

N.T.S.

SCALE:2 CENTERLINE OF PRINCIPAL SPILLWAY

N.T.S.

10-0"

13'-0"

OUTLET CHANNEL

1000.00

5'- 0"

1'- 6"

0.3 ' 4'-0"

12'-0" (DESIGN)

L

SPILLWAY CREST

1002.00

2'- 0"

DESIGN ELEVATION

1006.50

A B.1

B B.1

C B.1

A B.1

B B.1

C B.1

VARIES

TOP OF FILL

1006.5

BOTTOM OF PILE

998.50

66'-0" TOTAL SHEET PILE WIDTH

20'-0" 6'

MIN.4'-0"12'-0"

L

4'- 0"

46'-0"

MIN. WIDTH OF FULL DEPTH PILINGS

12'-0"

DESIGN ELEVATION

1006.5

L

8'-0"

5'- 0"

1'- 0"

M

IN

TOP OF WAVE BENCH

1003.00

BOTTOM OF WAVE BENCH

1001.00

NORMAL POOL ELEVATION

1002.00

20'-0" 6"

NOTE:

USE APPROVED ONSITE COHESIVE LOW PERMEABLE BACKFILL FOR

DAM AND CORE TRENCH BACKFILL.

SCALE:1 TYPICAL DAM SECTION

N.T.S.

CORE TRENCH NOTES:

1. STRIP 1' (MIN.) SOIL BENEATH EMBANKMENT.

2. EXCAVATE MINIMUM 5' DEEP CORE TRENCH.

3. BACKFILL WITH COHESIVE, LOW PERMEABLE MATERIAL AND

COMPACT PER EMBANKMENT SPECIFICATIONS.

5'-0" 5'-0"

6'

MIN. 4'-0" 12'-0"

2.0

1'- 6"

NORMAL STILLING BASIN POOL

1000.00

0.3

SPILLWAY CREST

1002.00

TOP OF SHEET PILE

1005.50

7'- 0"

'-0

CHANNEL C

GEOTEXTILE FABRIC LINER

LOOSE ROCK RIPRAP

CHANNEL C

GEOTEXTILE FABRIC LINER

LOOSE ROCK RIPRAP

EXISTING GROUND

FILL C

TOP OF SHEET PILE (BEYOND) = 1005.50

GEOTEXTILE FABRIC

LINER

GROUTED

RIPRAP

LOOSE ROCK RIPRAPTOP OF BANK

GEOTEXTILE FABRIC LINER

FLOW

CHANNEL C

DOWNSTREAM

SECTION

WALER

STEEL SHEET PILING

UPSTREAM SECTION

ST

RU

CT

UR

E C

CORE TRENCH

STRIPPING EXCAVATION, TYP.

TOP OF CONSTRUCTION FILL = 1007.00 (SEE PROFILE)

UPSTREAM GROUTED RIPRAP

GEOTEXTILE FABRIC LINER

FLOOR

999.00

CENTER PILE LENGTH

END PILE LENGTH

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

B.1

TYPICAL CROSS SECTION DETAILS

Know what'sbelow.

before you dig.Call

R

10'-0"

SCALE:1 SUBMERGED BERM - TYPICAL SECTION

N.T.S.

TOP OF FILL

1001.50

4:1, TYP.

6" MIN. STRIPPED TOPSOIL

NORMAL WSE

1002.00

EXISTING GRADE, TYP.

PROPOSED GRADE, TYP. 6" MIN. TOPSOIL PLACEMENT

6'-0"

SCALE:3 DIVERSION DAM - TYPICAL SECTION

N.T.S.

TOP OF FILL

1004.50

3:1, TYP.

6" MIN. STRIPPED TOPSOIL

EXISTING GRADE, TYP.

PROPOSED GRADE, TYP.

6" MIN. TOPSOIL PLACEMENT

SCALE:5 SEDIMENT FOREBAY TRANSVERSE - TYPICAL SECTION

N.T.S.

20'-0"

3:1 SLOPE

3:1 SLOPE

EXCAVATED BOTTOM

999.00

NORMAL WSE

ELEV. = 1002.00

6" MIN. TOPSOIL PLACEMENT

6" MIN. TOPSOIL PLACEMENT

SCALE:2 TILE OUTLET SWALE

N.T.S.

5'-0"

3:1 SLOPE

6" MIN. TOPSOIL PLACEMENT

SCALE:4 SEDIMENT FOREBAY LONGITUDINAL - TYPICAL SECTION

N.T.S.

50'-0"

3:1 SLOPE

3:1 SLOPE

EXCAVATED BOTTOM

999.00

NORMAL WSE

ELEV. = 1002.00

RIPRAP, 2' THICK

RIPRAP, 2' THICK

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

B.2

TYPICAL CROSS SECTION DETAILS

Know what'sbelow.

before you dig.Call

R

STANDARD SYMBOLS

ITEM SYMBOL/HATCH

CONTOUR MINOR (EX. SCREENED)

CONTOUR MAJOR (EX. SCREENED)

CONTOUR MINOR (PR)

CONTOUR MAJOR (PR)

LIMITS OF CONSTRUCTION

CULVERT

ELECTRIC (OVHD)

FENCE (WIRE OR UNKNOWN)

PROPERTY BOUNDARY

STORM SEWER (NS)

CROPLINE

RIP RAP

CONCRETE

POWER POLE (EXISTING)

CONTROL POINT (NON-PROPERTY)

TREE MASS LINE

SILT FENCE

FLOW ARROW (PLAN)

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

C.1

CONSTRUCTION NOTES, SYMBOLS,

& TABULATIONS

GENERAL NOTES:

1. THIS PROJECT SHALL BE CONSTRUCTED TO THE IOWA NRCS CONSTRUCTION

SPECIFICATIONS AND ALL SUBSEQUENT REVISIONS.

"https://efotg.sc.egov.usda.gov/#/state/IA/documents/section=4&folder=-843"

2. OWNER AND ENGINEER SHALL BE CONTACTED A MINIMUM OF 72 HOURS PRIOR TO

COMMENCING WORK ON THE PROJECT.

3. NOTIFY UTILITIES AT LEAST 48 HOURS PRIOR TO BEGINNING ANY CONSTRUCTION

ACTIVITIES. CONTRACTOR IS RESPONSIBLE FOR DETERMINING EXISTENCE AND EXACT

LOCATION OF ALL UTILITIES AND AVOIDING DAMAGE TO UTILITIES AND SERVICES DURING

CONSTRUCTION. ANY DAMAGE DUE TO THE CONTRACTOR'S NEGLIGENCE SHALL BE

CORRECTED AT THE CONTRACTOR'S EXPENSE. COORDINATE AND COOPERATE WITH

UTILITY COMPANIES DURING CONSTRUCTION. UTILITY ONE CALL: 1-800-292-8989.

4. CONTRACTOR SHALL SUBMIT A SCHEDULE FOR PERFORMANCE OF WORK ITEMS. THIS

SCHEDULE SHALL BE PROVIDED AT THE PRE-CONSTRUCTION CONFERENCE. NO WORK

SHALL BEGIN UNTIL A SCHEDULE HAS BEEN SUBMITTED AND ACCEPTED BY THE ENGINEER.

5. CONTRACTOR SHALL REMAIN WITHIN LIMITS OF CONSTRUCTION FOR ALL WORK UNLESS

AUTHORIZATION IS GIVEN BY OWNER AND ENGINEER PRIOR TO COMMENCING SUCH WORK.

6. CONTRACTOR IS LIABLE FOR DAMAGES TO PUBLIC AND PRIVATE PROPERTY CAUSED BY

THEIR ACTION OR INACTION IN PROVIDING FOR HANDLING OF STORM WATER FLOW DURING

CONSTRUCTION.

7. BID QUANTITIES SHALL NOT BE EXCEEDED WITHOUT PRIOR WRITTEN AUTHORIZATION

FROM OWNER AND ENGINEER. ANY ITEM OR WORK NECESSARY TO COMPLETE THE

PROJECT NOT DIRECTLY CALLED FOR AS A BID ITEM SHALL BE CONSIDERED INCIDENTAL

TO OTHER ITEMS FOR WHICH PAYMENT IS MADE.

8. ELEVATION OF PIPES REFER TO FLOWLINES.

9. ANY ADDITIONAL EXCAVATION REQUIRED FOR RESHAPING OF ADJACENT AREAS TO

PROVIDE DRAINAGE IS CONSIDERED INCIDENTAL TO THE PROJECT.

10. IT IS THE CONTRACTOR'S RESPONSIBILITY TO HAUL EXCESS MATERIAL TO DESIGNATED

WASTE AREAS NOTED ON THE PLANS, INCLUDING SOILS WHICH ARE NOT APPROVED FOR

INCORPORATION INTO THE WORK INVOLVED ON THIS PROJECT. NO PAYMENT FOR

OVERHAUL WILL BE ALLOWED FOR MATERIAL HAULED TO THESE SITES. ADDITIONAL

WASTE AREAS FOR EXCESS SOIL WILL BE DESIGNATED BY THE ENGINEER ON SITE AFTER

CONSTRUCTION COMMENCES.

11. OVERHAUL ON THIS PROJECT SHALL BE CONSIDERED INCIDENTAL AND NO ADDITIONAL

PAYMENT WILL BE MADE.

12. CONTRACTOR SHALL NOTIFY ENGINEER OF ANY FIELD TILE ENCOUNTERED DURING

CONSTRUCTION. CONTRACTOR TO ROUTE DISTURBED TILE TO CLOSEST DRAINAGE

OUTLET, DITCH, OR POND. WORK SHALL BE SUBJECT TO CHANGE ORDER.

13. IT IS THE CONTRACTOR'S RESPONSIBILITY TO OBTAIN ANY AND ALL NRCS STANDARD

DETAIL DRAWINGS AND SPECIFICATIONS NECESSARY FOR THE PROJECT THAT ARE NOT

DIRECTLY GIVEN WITH THIS PROJECT.

14. COMPLETELY REMOVE AND DISPOSE OF TREES, SHRUBS AND VEGETATION DESIGNATED

FOR REMOVAL ON THE PLANS. THIS INCLUDES ALL TREES AND SHRUBS WITHIN THE

WETLAND POOL AREA BELOW ELEVATION 1002' AND ANY VEGETATION WITHIN THE

FOORPRINT OF ANY GRADING WORK. DISPOSE OF IN ACCORDANCE WITH APPLICABLE

LAWS AND REGULATIONS. ON-SITE BURNING OR CHIPPING MAY BE NEGOTIATED WITH THE

LANDOWNER. THIS SITE CLEARING WORK IS CONSIDERED INCIDENTAL TO OTHER ITEMS OF

WORK AN NO SEPARATE MEASUREMENTS OR PAYMENTS WILL BE MADE.

15. CONTRACTOR SHALL SATISFY THEMSELVES PRIOR TO SUBMISSION OF BIDS AS TO THE

SOIL CONDITIONS.

16. PROTECT AND SAVE ALL PROPERTY CORNER MONUMENTS. CONTRACTOR TO REPLACE IF

REMOVED OR DAMAGED AT THEIR OWN EXPENSE.

17. STRIP, SALVAGE, AND RESPREAD TOP SIX INCHES OF TOPSOIL IN ALL AREAS WITHIN THE

CONSTRUCTION LIMITS AS PER SPECIFICATIONS, EXCEPT AREAS NOT DISTURBED BY

CONSTRUCTION AND USED TO STOCKPILE SOIL AND MATERIALS. MECHANICALLY LOOSEN

THE TOP 18 INCHES OF SOIL ON ALL HAUL ROADS AND OVERLY COMPACTED AREAS PRIOR

TO RE-SPREADING OF TOPSOIL.

18. CONTRACTOR SHALL KEEP UP TO DATE RECORDS ON ALL MEASUREMENTS, MATERIALS

DELIVERIES AND PLACEMENTS, AND AS-BUILT DRAWINGS.

19. CONTRACTOR SHALL ATTEND PROGRESS MEETINGS AS REQUESTED BY THE ENGINEER

AND OWNER.

20. DIMENSIONS, UTILITIES, AND GRADING ARE BASED ON AVAILABLE INFORMATION AT THE

TIME OF DESIGN. DEVIATIONS MAY BE NECESSARY IN THE FIELD. REPORT ANY SUCH

CHANGES OR CONFLICTS BETWEEN THE PLAN AND FIELD CONDITIONS TO ENGINEER

IMMEDIATELY AND PRIOR TO CONTINUING OF WORK.

UTILITY WARNING:

1. THE UTILITIES HAVE SHOWN HAVE BEEN LOCATED FROM FIELD SURVEY INFORMATION

AND/OR RECORDS OBTAINED. THE SURVEYOR MAKES NO GUARANTEE THAT THE UTILITIES

OR SUBSURFACE FEATURES SHOWN COMPRISE ALL SUCH ITEMS IN THE AREA, EITHER IN

SERVICE OR ABANDONED. THE SURVEYOR FURTHER DOES NOT WARRANT THAT THE

UTILITIES OR SUBSURFACE FEATURES SHOWN ARE IN THE EXACT LOCATION INDICATED

EXCEPT WHERE NOTED.

QUANTITY NOTES:

* INCLUDES SHAPING AND MAINTENANCE ON THE INGRESS/EGRESS.

** EARTHFILL (EMBANKMENT) ASSUMES NO COMPACTION FACTOR.

*** QUANTIFIED AREAS ARE APPROXIMATE AND SHALL BE DETERMINED BY CONTRACTOR, ENGINEER, AND OWNER.

PROJECT DATA TABLE

CONSULTANT JEO CONSULTING GROUP, INC.

PROJECT ID CHI941419B

LANDOWNER(S) SUDOL

PRELIMINARY OR FINAL DESIGN PRELIMINARY

DRAINAGE AREA 433.50 ACRES

WETLAND POOL AREA 7.32 ACRES

PERCENT WETLAND POOL TO DRAINAGE AREA 1.69 %

DEEP WATER AREA (>3 FT DEEP) 0 ACRES

PERCENT DEEP WATER TO POOL AREA 0 %

NORMAL POOL ELEVATION / PRIMARY SPILLWAY

ELEVATION 1002 FEET

AVERAGE POOL DEPTH 0.79 FEET

MAXIMUM POOL DEPTH 2.42 FEET

POOL STORAGE 5.80 ACRE-FEET

BERM ELEVATION 1006.5 FEET

BERM STORAGE 68.62 ACRE-FEET

LENGTH OF BERM 1,033 FEET

WEIR WIDTH 20 FEET

DROP HEIGHT (PRIMARY SPILLWAY ELEVATION –

STILLING BASIN LOWEST ELEVATION) 2.3 FEET

HEIGHT OF DAM (BERM ELEVATION – STILLING BASIN

LOWEST ELEVATION) 6.8 FEET

STILLING BASIN LENGTH 10 FEET

TIME OF CONCENTRATION 2.42 HOURS

WEIGHTED RUNOFF CURVE NUMBER 83 -----

25-YEAR STORM DESIGN FLOW 510 CFS

100-YEAR STORM DESIGN FLOW 750 CFS

100-YEAR FLOOD SURF. ELEVATION 1005.54 FEET

ESTIMATED SEDIMENT STORAGE 32 YEARS

TOTAL EASEMENT AREA 28.44 ACRES

WETLAND STORAGE TABLE

CONTOUR ELEVATION (FT) CONTOUR AREA (AC) CUMULATIVE VOLUME, AVG,

END (AC-FT)

999.58 0.00 0.00

1000 0.12 0.02

1001 2.06 1.24

1002 7.32 4.75

1003 9.85 11.34

1004 12.37 21.75

1005 16.41 36.14

1006 20.09 54.39

1006.50 21.80 64.86

QUANTITY TABULATIONS

ITEM DESCRIPTION SPEC. ITEM UNIT QUANTITY AS-BUILT

1 SITE STRIPPING & PREPARATION IA CS-001 LS 1

2 CROP DAMAGES*** IA CS-001 ACRE 0

3 POLLUTION CONTROL IA CS-005 LS 1

4 SILT FENCE IA CS-005 LF 1115

5 STRUCTURE SEEDING IA CS-006 ACRE 1.1

6 WATERWAY SEEDING IA CS-006 ACRE 0.1

7 BUFFER SEEDING IA CS-006 ACRE 18.9

8 MOBILIZATION & DEMOBILIZATION* IA CS-008 LS 1

9 TILE INVESTIGATION IA CS-009 LS 1

10 SHEET PILE IA CS-013 SF 600

11 EXCAVATION (CORE TRENCH) IA CS-021 CY 1,985

12 EXCAVATION (BORROW) IA CS-021 CY 8,175

13 EXCAVATION (SEDIMENT FOREBAY) IA CS-021 CY 230

14 EXCAVATION (TILE OUTLET SWALE) IA CS-021 CY 25

15 EARTHFILL (DAM)** IA CS-023 CY 6,270

16 EARTHFILL (DAM AS CONSTRUCTED)** IA CS-023 CY 175

17 EARTHFILL (DAM CORE)** IA CS-023 CY 1985

18 EARTHFILL (DIVERSION DAMS)** IA CS-023 CY 75

19 EARTHFILL (SUBMERGED BERMS)** IA CS-023 CY 235

20 DRAINFILL IA CS-024 CY 12

21 TOPSOIL PLACEMENT IA CS-026 CY 6,805

22 CMP WATER CONTROL STRUCTURE IA CS-051 LS 1

23 CMP RISER INLET STRUCTURE IA CS-051 EA 1

24 CMP PIPE (15" DIA.) IA CS-051 LF 86

25 CMP FLARED END SECTION W/ BAR GUARD IA CS-051 EA 1

26 RIPRAP IA CS-061 TON 425

27 CONCRETE GROUT IA CS-062 CY 8

28 GEOTEXTILE FABRIC IA CS-095 SY 235

STST

ST ST

OHE OHE

LOC LOC

SF SF

<ST> <ST>

HORIZONTAL SURVEY CONTROL - IA RCS ZONE 2 (MASON CITY) / NAVD88

POINT NORTHING EASTING ELEVATION LONG

NAME US SURVEY FEET US SURVEY FEET DESCRIPTION

CP-9000 9730053.86 12568850.29 1004.93 5/8" REBAR 676' +/- NORTH OF EAST/WEST POWERLINE; 555' +/- WEST OF

NORTH/SOUTH POWERLINE; 1978' +/- SOUTH OF 260TH STREET

HORIZONTAL SURVEY CONTROL - IA RCS ZONE 2 (MASON CITY) / NAVD88

POINT NORTHING EASTING ELEVATION LONG

NAME US SURVEY FEET US SURVEY FEET DESCRIPTION

CP-9000 9730053.86 12568850.29 1004.93 5/8" REBAR 676' +/- NORTH OF EAST/WEST POWERLINE; 555' +/- WEST OF

NORTH/SOUTH POWERLINE; 1978' +/- SOUTH OF 260TH STREET

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

CG.1

SURVEY CONTROL

0 200' 400'

N

260TH STREET

TRIBUTARY TO CEDAR RIVER

CP-9000

SECTION LINES, TYP.

<ST><ST>

OHE OHE OHE OHE OHE

5 1004

15 10

100810

978981982983984985

977974977

972973974975

29 1040

1030102

10651066

10371043

1012 1020102110221015

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

D.1

EXISTING SITE PLAN

0 200' 400'

N

RICHARDS, GREG W.

& RACHEL A. JT

SUDOL, STEVEN D.

& TAMERA L. JT

LANTOW, WAYNE J.

& SANDRA K.

EX. FARMSTEAD

EX. TWIN 30" CMP CULVERTS

FL. ELEV. = APPROX. 1010.00

SUDOL, STEVEN D.

& TAMERA L. JT

260TH STREET

KRAFT, DAVID & JANE

IRREVOCABLE TRUST

ZWANZIGER

LIMITED, L.C.

ZWANZIGER, LAWRENCE

& PATRICIA J.

KRAFT, VIRGINIA

PROPERTY BOUNDARY

FROM GIS, TYP.

KRAFT, DAVID & JANE

IRREVOCABLE TRUST

EX. ELECTRIC

EASEMENT, TYP.

EX. BARBED WIRE

FENCE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.

EX. POWER POLE, TYP.

EX. CROPS, TYP.

EX. TILE DISCHARGE

FL ELEV. = 1004.86

SUDOL, ORLIN T. &

DEBRA JT

HARRINGTON, WILLIAM

TAPP, CONNIE M.

EX. BUILDING, TYP.

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

SITE ACCESS FROM 260TH STREET

SECTION LINES, TYP.

APPROXIMATE LOCATION

OF ABANDONED TILE.

5 1004

15 10

100810

978981982983984985

977974977

972973974975

29 1040

1030102

10651066

10371043

1012 1020102110221015

FL=1004.00FL=1002.00

LOC

LOC

LOC

LOC LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOCLOCLOCLOC

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

D.2

OVERALL PROPOSED SITE PLAN

0 200' 400'

N

RICHARDS, GREG W.

& RACHEL A. JT

SUDOL, STEVEN D.

& TAMERA L. JT

LANTOW, WAYNE J.

& SANDRA K.

EX. FARMSTEAD

EX. TWIN 30" CMP CULVERTS

FL. ELEV. = APPROX. 1010.00

SUDOL, STEVEN D.

& TAMERA L. JT

260TH STREET

KRAFT, DAVID & JANE

IRREVOCABLE TRUST

ZWANZIGER

LIMITED, L.C.

ZWANZIGER, LAWRENCE

& PATRICIA J.

KRAFT, VIRGINIA

PROPERTY BOUNDARY

FROM GIS, TYP.

KRAFT, DAVID & JANE

IRREVOCABLE TRUST

EX. ELECTRIC

EASEMENT, TYP.

EX. BARBED WIRE

FENCE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.

EX. POWER POLE, TYP.

EX. CROPS, TYP.

EX. TILE DISCHARGE

FL ELEV. = APPROX. 1004.86

SUDOL, ORLIN T. &

DEBRA JT

HARRINGTON, WILLIAM

TAPP, CONNIE M.

EX. BUILDING, TYP.

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

SITE ACCESS FROM 260TH STREET

PR. BORROW

PR. EASEMENT

PR. DAM AND SPILLWAY

PR. DRAWDOWN SYSTEM,

SEE SHEET M.3

GENERAL NOTES:

1. SITE STRIPPING & PREPARATION SHALL BE LIMITED TO THE

AREAS OF EXCAVATION, EARTHFILL, NORMAL POOL, AND SITE

ACCESS ROUTE.

2. STAGING AND MATERIALS STORAGE SHALL BE KEPT WITHIN THE

LIMITS OF CONSTRUCTION.

3. TILE EXPLORATION AREAS INCLUDE DOWNSTREAM OF KNOWN

TILE LOCATIONS ALONG WITH UNDER THE EMBANKMENT.

BUILD TABLE

DESCRIPTION UNIT QUANTITY

SITE STRIPPING AND PREPARATION LS 1

TILE INVESTIGATION LS 1

APPROXIMATE LOCATION

OF ABANDONED TILE.

SECTION LINES, TYP.

PR. SEDIMENT FOREBAY

PR. DIVERSION DAMS

PR. TILE OUTLET SWALE

FLOW

FLOW

PR. SUBMERGED BERMS

<ST>

OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE

1003 1001

1002 1000

1005 1006

FL=1004.00

FL=1002.00

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC LOC LOC LOC LOC LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOC

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

D.3

PROPOSED GRADING PLAN

0 50' 100'

N

PROPERTY BOUNDARY

FROM GIS, TYP.

EX. ELECTRIC

EASEMENT, TYP.

EX. BARBED WIRE

FENCE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.EX. POWER POLE, TYP.

EX. CROPS, TYP.

EX. TILE DISCHARGE

FL ELEV. = APPROX. 1004.00

SUDOL, ORLIN T. &

DEBRA JT

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

SITE ACCESS FROM 260TH STREET

PR. 20'X50' SEDIMENT FOREBAY

BOTTOM ELEV. = 999.00

PR. EASEMENT

PR. DAM, SEE SHEET M.1

PR. SPILLWAY, SEE SHEET M.2

EQUIPMENT RESTRICTION LOCATION. NO

EQUIPMENT SHALL BE PERMITTED WITHIN

10' HORIZONTAL OF OVERHEAD ELECTRIC.

PR. DRAWDOWN SYSTEM, SEE SHEET M.3

EARTHWORK TABLE

DESCRIPTION

CUT

(CU. YDS.)

FILL

(CU. YDS.)

EXCAVATION (CORE TRENCH) 1,985 0

EXCAVATION (BORROW) 8175 0

EXCAVATION (SEDIMENT FOREBAY) 230 0

EXCAVATION (TILE OUTLET SWALE) 25 0

EARTHFILL (DAM) 0 6,270

EARTHFILL (DAM AS CONSTRUCTED) 0 175

EARTHFILL (DAM CORE) 0 1,985

EARTHFILL (DIVERSION DAM) 0 75

EARTHFILL (SUBMERGED BERMS) 0 235

TOPSOIL PLACEMENT 0 6,805

GENERAL NOTES:

1. TOPSOIL ALL DISTURBED AREAS ABOVE ELEVATION 1000.00 WITH

6" TOPSOIL.

2. ADD 6" TOPSOIL IN SHALLOW GRADED POOL AREA (LESS THAN 3'

DEEP) IF DISTURBED DURING CONSTRUCTION ACTIVITIES.

3. STRIP 12 INCHES OF TOPSOIL IN EARTHWORK AREAS.

ESTIMATED STRIPPED TOPSOIL QUANTITY = 14,100 CY.

4. ELECTRIC EASEMENT IS 30' TO THE NORTH OF THE CENTER LINE

OF OVERHEAD ELECTRIC LINES. NO EQUIPMENT SHALL BE

PERMITTED WITHIN 10' HORIZONTAL OF OVERHEAD ELECTRIC.

5. UTILITY COMPANY INTENDS TO REPLACE OVERHEAD ELECTRIC

POLES IN THE NEAR FUTURE.

6. NO EARTHWORK CUT/FILL FACTOR WAS USED.

7. EARTHWORK IS TO BE BALANCED ON-SITE.

PROPERTY BOUNDARY

FROM GIS, TYP.

PR. DIVERSION BERMS

PR. TILE OUTLET SWALE

PR. SUBMERGED BERMS

FLOW

FLOW

FLOW

FLOW

FLOW

FLOW

FLOW

FLOW

ROCK RIPRAP

LOCATION TONS

SEDIMENT FOREBAY NORTH 52

SEDIMENT FOREBAY SOUTH 41

WASTE EXCESS SPOILS WITHIN

EASEMENT ABOVE 1006.5 ELEVATION.

OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE OHE

1003 1001

10041006

1002 1000

1005 1006

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+00.0023+00.00

LOC

LOC

LOC

LOC

LOC

LOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOCLOC

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 20+00 21+00 22+00 23+00 23+50

.0

.0

.5

.6

9.7

9.9

.4

.6

.5

.4

.6

.8

.2

.4

.4

.5

.7

.9

.0

9.7

.4

.6

.6

.0

.8

.6

.5

.5

.50

.50

.50

.73

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

STA = 14+07.84

ELEV = 1002.00

STA = 14+27.84

ELEV = 1002.00

EX. GRADE, TYP.

MIN. LIMITS OF SHEET PILE WALL

(SEE SHEET B.1 FOR DETAILS AND ELEVATIONS)

PR. GRADE (SETTLED)

ELEV = 1006.50

PR. GRADE (CONSTRUCTED)

ELEV = 1007.00

PR. WATER LEVEL

ELEV = 1002.00

PR. 48" DIA. WATER CONTROL STRUCTURE,

SEE SHEET M.3

PR. CORE TRENCH

SEE DETAIL 1/B.1

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

S-241731.01 - M.1

M.1Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

[Consultant Title and Discipline] Organization Certificate of Authorization Number: [XX-000] [Address Line 1] [City, State 000000] [000.000.0000]

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

N

0 50 100

HORIZ.=

VERT.=

52.5

PR

OP

OS

ED

GR

AD

E

EX

IS

TI

NG

GR

AD

E

STA.STA.

PR

OP

OS

ED

GR

AD

E

EX

IS

TI

NG

GR

AD

E

HORIZ.=

VERT.=

52.5

7'-0"

10'-0"

20'-0"

SHEET PILE

STATION TO STATION SQ. FT.

STA. 13+85.19 TO STA. 14+51.19 600

FLOW

PR. SPILLWAY, SEE SHEET M.2

FLOW

PR. DRAWDOWN SYSTEM,

SEE SHEET M.3

PERMANENT EASEMENT, TYP.

EX. POWER POLE, TYP. EX. BARBED WIRE

FENCE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.

EQUIPMENT RESTRICTION

AREA, SEE NOTE 5, SHEET D.3.

EX. ELECTRIC EASEMENT, TYP.

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

PROPERTY BOUNDARY

FROM GIS, TYP.

EX. POWER POLE, TYP.

OVERHEAD ELECTRIC TO BE

RELOCATED BY OTHERS.

PR. STOPLOG STORAGE

STRUCTURE

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

02 10

30+00.00 31+00.00 32+00.00

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

29+50 30+00 30+50 31+00 31+50 32+00 32+50 33+00

ST

A

+7 0.0

EL

EV

.00

ST

A

+6 0.0

EL

EV

.00

ST

A

+0 0.1

EL

EV

.00

ST

A

+1 1.1

EL

EV

.00

ST

A

+2 1.1

EL

EV

.00

ST

A

+2

8.6

EL

EV

9.2

STA = 30+56.37

ELEV = 1000.08

PR. CORE TRENCH

PR. LOOSE ROCK RIPRAP

PR. GROUTED ROCK RIPRAP

PERMANENT POOL

WSE = 1002.00

PR. GRADE, TYP.

EX. GRADE, TYP.

.08

.00

.99

9.6

.5

.1

9.7

8.9

.0

.4

9.9

9.3

9.3

STA = 31+10.13

ELEV = 999.70

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

S-241731.01 - M.2

M.2Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

[Consultant Title and Discipline] Organization Certificate of Authorization Number: [XX-000] [Address Line 1] [City, State 000000] [000.000.0000]

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

N

0 20 40

HORIZ.=

VERT.=

52.5

PR

OP

OS

ED

GR

AD

E

EX

IS

TI

NG

GR

AD

E

STA.STA.

PR

OP

OS

ED

GR

AD

E

EX

IS

TI

NG

GR

AD

E

HORIZ.=

VERT.=

52.5

GEOTEXTILE FABRIC

STATION TO STATION SQ. YDS.

STA. 30+94.00 TO STA. 31+32.06 235

ROCK RIPRAP

STATION TO STATION TONS

STA. 30+94.00 TO STA. 31+32.06 332

CONCRETE GROUT

STATION TO STATION CY

STA. 30+94.00 TO STA. 31+32.06 8

FLOW

FLOW

PR. DRAWDOWN SYSTEM, SEE

SHEET M.3

PR. DAM, SEE SHEET M.1

PERMANENT EASEMENT, TYP.

EX. POWER POLE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.

EQUIPMENT RESTRICTION

AREA, SEE NOTE 5, SHEET D.3.

EX. ELECTRIC EASEMENT, TYP.

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

PROPERTY BOUNDARY

FROM GIS, TYP.

FLOW

PR. STOPLOG STORAGE

STUCTURE

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

OH

E

40+00.00

41+00.00

42+00.00

10051003

10011003

10041006

40+00.00

41+00.00

42+00.00

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOC

39+50 40+00 40+50 41+00 41+50 42+00 42+50 43+00

44' of 15" CMP @ S=0.25%

W

AT

ER

LE

VE

L C

ON

TR

OL

S

TR

UC

TU

RE

ST

A:

+0

0.0

RI

M

EL

EV

: 1

7.5

FL

IN

(1 5"

9.8

FL

O

UT

(1

5"

9.8

IN

S

LO

TT

ED

R

IS

ER

ST

A:

+5 5.9

RI

M

EL

EV

: 1

3.0

FL

O

UT

(1 5"

.00

IN

C

MP

F

ES

ST

A:

+4

1.9

RI

M

EL

EV

: 1

6.0

FL

IN

(1 5"

9.7

EX. GRADE, TYP.

ST

A

+2 0.4

EL

EV

.00

42' of 15" CMP @ S=0.25%

PR. FILTER OUTLET

PR. SAND DIAPHRAGM

PERMANENT POOL

WSE = 1002.00

PR. GRADE, (SETTLED)

PR. CORE TRENCH

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

S-241731.01 - M.3

M.3Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

[Consultant Title and Discipline] Organization Certificate of Authorization Number: [XX-000] [Address Line 1] [City, State 000000] [000.000.0000]

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

N

0 20 40

HORIZ.=

VERT.=

52.5

PR

OP

OS

ED

GR

AD

E

EX

IS

TI

NG

GR

AD

E

STA.STA.

PR

OP

OS

ED

GR

AD

E

EX

IS

TI

NG

GR

AD

E

HORIZ.=

VERT.=

52.5

CMP PIPE (15" DIA.)

NO. STRUCTURE TO STRUCTURE SIZE LIN. FT. SLOPE

1 CMP RISER INLET STRUCTURE TO CMP WATER

CONTROL STRUCTURE 15" 44 0.25%

2 CMP WATER CONTROL STRUCTURE TO FLARED END

SECTION, CMP 15" 42 0.25%

DRAWDOWN STRUCTURES

NO. DESCRIPTION SIZE RIM ELEV. FL ELEV. (IN) FL ELEV.

(OUT)

1 CMP RISER INLET STRUCTURE 24" 1003.00 15" = 1000.00 (S)

2 CMP WATER CONTROL STRUCTURE 48" 1007.50 15" = 999.89 (N) 15" = 999.89 (SW)

FLARED END SECTION, CMP

NO. STATION SIZE EACH

1 41+41.95 15" 1

FLOW

FLOW

PR. DAM, SEE SHEET M.1

PERMANENT EASEMENT, TYP.

EX. POWER POLE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.

EQUIPMENT RESTRICTION

AREA, SEE NOTE 5, SHEET D.3.

EX. ELECTRIC EASEMENT, TYP.

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

FLOW

PROPERTY BOUNDARY

FROM GIS, TYP.

DRAINFILL

STATION TO STATION CU. YDS.

STA. 41+13.95 TO STA. 41+38.81 12

PR. STOPLOG STORAGE

STUCTURE

5 1004

15 10

100810

978981982983984985

977974977

972973974975

29 1040

1030102

10651066

10371043

1012 1020102110221015

SF SF SF SF SF

LOC

LOC

LOC

LOC LOC

LOC

LOC

LOC

LOC

LOC

LOC

LOCLOCLOCLOC

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

LO

C

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

R.1

SEEDING AND EROSION CONTROL

PLAN

0 200' 400'

N

RICHARDS, GREG W.

& RACHEL A. JT

SUDOL, STEVEN D.

& TAMERA L. JT

LANTOW, WAYNE J.

& SANDRA K.

EX. FARMSTEAD

EX. TWIN 30" CMP CULVERTS

FL. ELEV. = APPROX. 1010.00

SUDOL, STEVEN D.

& TAMERA L. JT

260TH STREET

KRAFT, DAVID & JANE

IRREVOCABLE TRUST

ZWANZIGER

LIMITED, L.C.

ZWANZIGER,

LAWRENCE &

PATRICIA J.

KRAFT, VIRGINIA

PROPERTY BOUNDARY

FROM GIS, TYP.

KRAFT, DAVID & JANE

IRREVOCABLE TRUST

EX. ELECTRIC

EASEMENT, TYP.

EX. BARBED WIRE

FENCE, TYP.

EX. OVERHEAD

ELECTRIC, TYP.

EX. POWER POLE, TYP.

EX. CROPS, TYP.

EX. TILE DISCHARGE

FL ELEV. = APPROX. 1004.00

SUDOL, ORLIN T. &

DEBRA JT

HARRINGTON,

WILLIAM

TAPP, CONNIE M.

EX. BUILDING, TYP.

100-YR FLOODPLAIN BOUNDARY, TYP.

EFFECTIVE DATE: 9/28/2012

EX. TRAILS, DO NOT DISTURB

SITE ACCESS FROM 260TH STREET

PR. BORROW

PR. EASEMENT

PR. DAM AND SPILLWAY

PR. DRAWDOWN

SEEDING, FERTILIZER, AND MULCH

TYPE HATCH AC.

STRUCTURE 1.1

BUFFER 18.9

WATERWAY 0.1

GENERAL NOTES:

1. STRUCTURE SEEDING TO BE INSTALLED ABOVE THE 1002.00 ELEVATION

ON THE POOL SIDE OF THE STRUCTURE. INSTALL SEEDING AND MULCH

ON ENTIRE TOP AND DOWNSTREAM SIDE AND EXTEND TO 5' OUTSIDE OF

THE TOE AS NECESSARY.

2. BUFFER SEEDING AND MULCH TO BE INSTALLED ON ALL OTHER

DISTURBED AREAS WITHIN THE LIMITS OF CONSTRUCTION. EXCLUDING

BELOW THE 1002.00 ELEVATION WITHIN THE POOL. SEEDING AND

MULCHING TO EXTEND 5' INSIDE THE NORMAL POOL. MULCH FOR NATIVE

SEEDING TO BE PROVIDED ON ALL SLOPES STEEPER THAN 4:1.

3. RESEED DISTURBED CROP GROUND WITH OAT COVER CROP.

ANTICIPATED CROP DAMAGES: 0.0 ACRES.

APPROXIMATE LOCATION OF

ABANDONED TILE

SILT FENCE

LOCATION LIN. FT.

SOUTH OF DAM EMBANKMENT 1115

SF

NOTES:

1. ALL BOLTS WILL BE 1" DIA. WITH 2 WASHERS, BOLT SHALL BE EXTENDED A MINIMUM OF 1/2" BEYOND THE NUT.

2. ALL HOLES SHALL BE DRILLED 1/16" DIA LARGER THAN THE BOLT.

3. IT IS RECOMMENDED THAT THE WALER SHALL BE PLACED ON THE DOWNSTREAM SIDE OF THE WEIR.

4. ANY HOLES LEFT IN THE SHEET PILE (LIFTING HOOKS, ETC.) SHALL BE CLOSED OFF TO NOT ALLOW WATER TO FLOW THROUGH SHEET

PILE.

5. AFTER SHEETING AND WALER INSTALLATION ALL SHEETING IS TO BE CUT TO CONFORM WITH 3:1 SLOPE.

6. STRUCTURAL STEEL SHALL BE FABRICATED AND ERECTED IN ACCORDANCE WITH THE LATEST SPECIFICATION AISC. FABRICATOR

SHALL SUBMIT SHOP DRAWINGS. FABRICATE AFTER ENGINEER'S REVIEW.

7. DEFLECTION SHALL BE MADE IN FABRICATED PIECES AND STILL CONFORM TO THE DIMENSIONS.

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 PLACE DURING CONSTRUCTION.

10. IF CONTRACTOR WISHES TO WELD WALER TO SHEET PILE INSTEAD OF BOLTING, CONTRACTOR MUST PRODIVDE ENGINEER THE DESIGN

AND SPECIFICATIONS THEY INTEND TO FOLLOW.

SCALE:3 WALER DETAIL

N.T.S.

FL

OW SHEET PILE SPLICE

1"Ø BOLT W/ (2) WASHERS, TYP.

C10x15.3 WALER, CONT.

C10x15.3 WALER, CONT.

SHEET PILE SPLICE

1"Ø BOLT W/ (2) WASHERS, TYP.

SHEET PILE SPLICE

C10x15.3 WALER, CONT.

1"Ø BOLT W/ (2) WASHERS, TYP.

FLOW

DESIGN NOTES:

1. DESIGN SHEET PILE AREA = 600 SF

2. SHEET PILE:

- MINIMUM SECTION MODULUS = 24.2 CU.IN. PER FT. OF WALL

- MINIMUM THICKNESS = 0.375 IN.

- MINIMUM STEEL GRADE = 36 KSI

- MEET ASTM A-328, A-572, OR A-690 MATERIAL SPECIFICATION

- MINIMUM MOMENT OF INERTIA OF 152 IN. PER FOOT OF WALL

3. PILING TO BE INSTALLED STARTING FROM THE CENTER OF THE WEIR SECTION AND

PROGRESSING AWAY FROM CENTERLINE.

4. ALTERNATE SHEET PILE SECTIONS THAT MEET THE MINIMUM REQUIREMENTS NOTED ABOVE

MUST BE PRE-APPROVED BY THE ENGINEER PRIOR TO THE BID. ALTERNATES MUST BE

SUBMITTED PRIOR TO THE PRE-BID MEETING. APPROVED ALTERNATES WILL BE PUBLISHED IN

AN ADENDUM.

SCALE:1 SHEET PILING DETAIL

N.T.S.

SCALE:

PZC 13 SHEET PILE CROSS-SECTION

N.T.S.

SCALE:2 GROUTED ROCK RIPRAP (UPSTREAM SECTION)

N.T.S.

SPILLWAY CREST

1002.00

NOTES:

AN AREA 6' WIDE ADJACENT TO THE SHEET PILE,

EXTENDING THE LENGTH OF THE WEIR SHALL BE

CONSTRUCTED FROM EXCESS GROUT TO HAVE A FLAT,

LEVEL SURFACE WITH FLOAT FINISH. NO PORTION OF THIS

AREA OR THE RIPRAP UPSTREAM SHALL EXCEED

ELEVATION 1001.80.

FINISH GROUT / RIPRAP SHALL BE 0.2 FEET BELOW TOP OF

SHEET PILING.

STEEL SHEET PILING

COMPACTED STRUCTURE FILL

MATERIAL

GEOTEXTILE FABRIC

GROUTED ROCK RIPRAP

WALER, SEE

DETAIL 3/U.1

0.2

1'- 6"

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

U.1

SHEET TITLE

SCALE:4 BEEHIVE INLET GRATE (STEEL BARS)

N.T.S.

SCALE:3 CMP SLOTTED INTAKE RISER

N.T.S.

INLET PIPE ID

SECTIONPLAN

BEEHIVE NOTES:

NUMBER OF BARS AND SIZE OF GRATE

VARIES WITH SIZE OF TILE INTAKES.

PAINT WITH (2) COATS RUST INHIBITING

PAINT FOLLOWING FABRICATION.

3.0

24" ID CMP RISER

" C

MP

POOL FLOOR

1000.00

RIM ELEV.

1003.00

NOTE:

SLOTTED PERFORATIONS:

2" x 6" SLOTS SPACED AT 8" HORIZ. & 6" VERT.

OFFSET COLUMNS 4" AND 8" FROM TOP & BOTTOM

OF RISER.

DO NOT USE FILTER FABRIC IN CONSTRUCTION OF

THE SLOTTED RISER.

40°

NORMAL WATER LEVEL

1002.00

SCALE:1 COVER & STOP LOG STORAGE STRUCTURE

N.T.S.

SCALE:2 LEVEL CONTROL STRUCTURE

N.T.S.

TOP OF LEVEL CONTROL STRUCTURE

ELEV. = 1007.50

4'-0" MIN.

4'-0" MIN.

7.6 1'

TOP OF STOP LOG CHANNEL

ELEV. = 1005.50

2'- 0"

STOP LOG NOTES:

STOP LOGS SHALL BE PROVIDED WITH CONTROL STRUCTURE.

STOP LOGS SHALL BE 6" NOMINAL HEIGHT. STOP LOGS SHALL

BE FITTED WITH RUBBER GASKETS TO ENSURE A WATER

TIGHT FIT AND MEANS OF REMOVAL WITH LIFTING ROD

(PROVIDED WITH STRUCTURE). REMOVAL METHOD MAYBE BY

EITHER WELDED HOOKS OR KEY HOLE. THE BOTTOM STOP

LOG SHALL BE FIXED (GROUTED) INTO THE WATER CONTROL

STRUCTURE BASE.

NOTE:

THE FOLLOWING DESIGNATION FOR PIPE CLASSIFICATION, CORRUGATIONS

AND COATINGS WHEN REFERRED TO ON THE DRAWINGS ARE IN ACCORDANCE

WITH CURRENT ASTM'S:

A760 STANDARD SPECIFICATION FOR CORRUGATED STEEL

PIPE, METALLIC-COATED.

A761 STANDARD SPECIFICATION FOR STEEL, GALVANIZED

CORRUGATED STRUCTURAL PLATES AND FASTENERS.

A849 STANDARD SPECIFICATION FOR POST-COATED AND LINED

CORRUGATED STEEL SEWER AND DRAINAGE PIPE (BITUMINOUS

OR CONCRETE)

A885 STANDARD SPECIFICATION OF STEEL SHEET,ZINC AND

ARIMID FIBER COMPOSITE-COATED FOR CORRUGATED STEEL

SEWER, CULVERT AND UNDERDRAIN PIPE.

NOTE:

TAR MASTIC ON ALL JOINTS FOR RISER AND PIPE TEE'S.

1/4" STEEL BAR (MIN.)

PIPE TO DRAWDOWN

INLET RISER

BEEHIVE INLET GRATE

SEE DETAIL THIS SHEET

WELDED COUPLER WITH

THREADED BANDS

STRUCTURE EMBANKMENT

RISER C L

SURROUND RISER WITH 6

TONS CLASS E ROCK RIPRAP

1 12"x1

4" ANNUAL CLOSE RIVETED

OR HELICAL 10GA

CORRUGATED METAL RISER WITH

PERFORATIONS

SLOT C

SEAM

WELDED COUPLER WITH

THREADED BANDS, (2)

BANDS MIN.

L

FLOW

INSTALL DUAL WALL END CAP AS LID. ELEVATE

STRUCTURE 3-4" ABOVE CONSTRUCTED

GRADE TO ALLOW CAP TO BE REMOVED.

BOLT 2-6" HEAVY DUTY GALVANIZED LIFTING HANDLES WITH

WASHERS, CENTERED 18" APART TO LID.

4.5 LF OF 30"° DUAL WALL HDPE

BURIED FOR STOP LOG STORAGE

TUBE.

PLACE 8" COMPACTED ROCK TO

SUPPORT TUBE AND PROVIDE

DRAINAGE.

FL. = 999.89FL. = 999.89

15" CMP PIPE STUB 15" CMP PIPE STUB

60"x60"x9" POURED CONCRETE

BASE (CLASS 3000)

PROVIDE AT MINIMUM 4" OF THE

CORRUGATED RISER ENCASED IN THE 9"

POURED CONCRETE BASE.

FLOW FLOW

15" CMP PIPE

SEE SHEET M.3

15" CMP PIPE

SEE SHEET M.3

2 23"X1

2" ANNULAR CLOSE

RIVETED 10GA

48" CMP RISER PIPE

LOCKABLE LID

CHANNEL, 2 REQUIRED,

WELD TO RISER.

LIFTING LUG

CONSTRUCTED ELEVATION = 1007.00

SETTLED ELEVATION = 1006.50

#4 BAR @ 12" OCEW, PROVIDE 3" COVER.

INSTALL 4'x4'x8" THICK CONCRETE BASE

WITH #4 DEFORMED BARS @ 12" OCEW

@ MID SLAB.

EMBED RISER 3 INCHES INTO CONCRETE

BASE.

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

U.2

2'- 0"

3'-9"3'-9"

8'-9" 3'-0"

FILTER DIAPHRAGM NOTES:

1. DRAINAGE DIAPHRAGM AND FILTER OUTLET MATERIAL SHALL MEET THE FINE

DRAINFILL GRADATION OF IA-24, DRAINFILL SPECIFICATION.

2. FILTER MATERIAL SHALL BE PLACED IN 8" LIFTS MAXIMUM.

3. SEE PROFILE VIEW FOR LOCATION.

SCALE:1 FILTER DIAPHRAGM OUTLET

N.T.S.

6" 6"

2'- 3"

2'-1"2'-1"

5'-4"

FILTER OUTLET NOTES:

1. THE FILTER ENVELOPE SHALL FULLY SURROUND THE OUTLET PIPE

FROM THE FILTER DIAPHRAGM TO OUTLET.

2. EXTEND GRAVEL LAYER 1' BEYOND FILTER FACE IN ALL DIRECTION.

3. DO NOT PLACE GEOTEXTILE FABRIC BETWEEN GRAVEL LAYER AND

ROCK RIPRAP. SCALE:2 FILTER OUTLET

N.T.S.

8"

1'- 0"

1'- 6"

4'-

" 15" CMP DRAWDOWN PIPE

FILTER ENVELOPE

(FINE DRAINFILL)

15" CMP FES W/

BAR GUARD

ROCK RIPRAP

AGGREGATE GRAVEL (COARSE

DRAINFILL)

WATER TIGHT

COUPLING BAND

EXTEND TO EXCAVATED TRENCH

EM

BA

NK

ME

NT

F

ILL

EM

BA

NK

ME

NT

F

ILL

EM

BA

NK

ME

NT

F

ILL

GROUTED RIPRAP

HIGH

POROSITY

NOTE:

SILT FENCE MAY ALSO BE

INSTALLED WITH A SILT

FENCE PLOW. NO STAPLING

IS REQUIRED WHEN THE SILT

FENCE PLOW IS USED.

LOW

POROSITY

SILT FENCE - LOW PROFILE

(LOW AND/OR HIGH POROSITY)

FLOW 30

8' - 0" MAX.

3' - 0" MIN.

SILT FENCE

(ACROSS DITCH)

FLOW

2"± 6"±

8"

SCALE:3 SILT FENCE INSTALLATION DETAIL

N.T.S.

STEEL STUDDED "T" LINE POSTS

5' - 6" LENGTH; 6' - 0" MAX. SPACING

TRENCH AND COMPACT

BACKFILL, SEE TRENCH DETAIL

SILT FENCE

FABRIC

6" X 1" WIRE STAPLE

EVERY 2' - 0" STAGGERED

BACKFILL

2"

PLASTIC CABLE TIES

3 - REQUIRED ON EACH POST

STEEL STUDDED "T" LINE

POSTS 5' - 6" LENGTH;

6' - 0" MAX. SPACING

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

U.3

ELEVATION

SECTIONAL ELEVATION A-A

X

X

X

X

BEAD WELD

SQUARE OR BUTT WELD

FILLET WELD

WELD ALL AROUND

BEAD WELD

FLUSH WELD

FILLET WELD

SIZE OF FILLET WELD

INSTALLATION NOTES:

ALUMINUM COATED STEEL - SEE FABRICATION NOTE NO. 5

ZINC COATED STEEL - SEE FABRICATION NOTE NO. 5

POLYMER PRECOATED - SEE FABRICATION NOTE NO. 5

COATINGS - SEE FABRICATION NOTE No.1:

3 x 1 2 2/3 x 1/2 1 1/2 x 1/4 (AVAILABLE ONLY IN HELICALLY CORRUGATED PIPE)

NOMINAL SIZE (INCH):

CORRUGATION REQUIREMENTS FOR TYPE I AND II PIPE:

TYPE II, THIS IS TYPE I PIPE WHICH HAS BEEN REFORMED INTO A PIPE ARCH HAVING

APPROXIMATELY A FLAT BOTTOM

TYPE I FULL CIRCULAR CROSS-SECTION

PIPE CLASSIFICATION:

FULLY BITUMINOUS COATED

ARAMID FIBER COMPOSITE, BITUMINOUS COATED

CORRUGATION TYPES - SEE FABRICATION NOTE No.1:

HELICAL

ANNULAR, CLOSE RIVETED

STANDARD TANK

LUG AND ROD

COUPLING BAND SHALL

HAVE A 3 1/2" LAP ± 1/2"

GASKET, SEE

INSTALLATION

NOTE 1

ON PORTION OF

PIPE UNDER

COUPLING BAND,

USE FINISHED

FLAT HEAD

RIVETS OR

WELD SEAMS.

CAULKED SEAMS -SEE

FABRICATION NOTE 5

STANDARD

TANK LUG

1/4"

1/4"

A

A

NOTE:

WELD SYMBOL ABOVE LINE INDICATES WELD IS ON

OPPOSITE SIDE OF JOINT TO WHICH ARROWS POINTS.

WELD SYMBOL BELOW LINE INDICATES WELD IS ON

SIDE OF JOINT TO WHICH ARROW POINTS.

COUPLING BAND

WITH RODS & LUGS

7 FULL CORRUGATIONS (MIN.)

FOR 12" & 15" DIA. PIPE

(MOVE OUTSIDE ROD & LUG

IN ONE CORRUGATION)

9 FULL CORRUGATIONS,

2' NOMINAL FOR 18"

THRU 48" DIA. PIPE

ANNULAR ROLLED END

OF HELICAL SEAM PIPE

GASKET, SEE

INSTALLATION

NOTE 1

X

SCALE:

WELD SYMBOLS

N.T.S

4"

COUPLING BAND REQUIREMENTS

GAGE BAND TYPE AND NUMBER OF RODS REQUIRED NUMBER BANDS

REQUIRED SEE DETAIL

14 X 2 FT. WITH 4 RODS FOR 15" DIA. PIPE AS REQUIRED X 1 X 2

- 4 FT. WITH 6 RODS FOR 54" DIA. PIPE - 1 2

1) THE SLEEVE TYPE NEOPRENE GASKET SIZE SHALL BE 3/8" THICK WITH A MINIMUM WIDTH OF 7" CENTERED ON THE PIPE JOINT AND FASTENED AT ENDS TO FORM A FULL CIRCLE. IN LIEU OF A NEOPRENE GASKET, ASPHALT OR TAR BASED MASTIC MAY BE

USED FOR DETAIL "1" AND "2". (SEE NOTE 5)

2) IN CONNECTING THE PIPE SECTIONS, THE COUPLING BANDS WILL BE CENTERED ON THE PIPE JOINT AND ALIGNED FOR COMPLETE AND TIGHT NESTING OF CORRUGATIONS BETWEEN COUPLING BAND AND EACH PIPE SECTION. RODS AND LUGS ON COUPLING BANDS WILL BE INSTALLED ACCORDING TO THE DRAWINGS. THE NUTS ON THE RODS WILL BE TIGHTENED WITHOUT OVER STRESS AND WILL BE RETIGHTENED AT LEAST TWICE AFTER INITIAL INSTALLATION, AT INTERVALS OF APPROXIMATELY 1/2 HOUR. THE FINAL TENSION ON THE RODS SHALL BE DETERMINED BY THE ENGINEER. BACKFILLING AROUND THE PIPE, EXCEPT AT COUPLING BANDS, MAY PROCEED DURING THE INTERVALS REQUIRED FOR TIGHTENING BANDS.

3) BEFORE COUPLING BANDS ARE INSTALLED ON RIVETED PIPE, THE PIPE SECTIONS THAT ARE TO BE CONNECTED SHALL BE ROTATED SO RIVETS ON THE PIPE ARE ON THE SIDE OF THE PIPE (SEE DETAIL "1") AND THE INSIDE LAPS ARE POINTED

DOWNSTREAM.

4) ON BITUMINOUS COATED PIPE, REMOVE EXCESS BITUMINOUS COATING FROM CORRUGATIONS WHERE BANDS AND PIPE JOIN.

5) THE ENDS OF THE TWO PIPE SECTIONS AND THE LAP SEAM WILL BE COATED WITH 1/4" OF ASPHALT OR TAR BASED MASTIC (ASTM A849, TROWEL GRADE) FOR DETAIL "1" COUPLING BANDS. THE MASTIC COATED AREAS SHOULD BE KEPT FREE OF ALL DIRT, GRAVEL, AND OTHER FOREIGN MATERIAL UNTIL BANDS ARE IN PLACE AND TIGHTENED. WHEN AIR TEMPERATURE IN 50°F

OR LOWER, HEAT WILL BE APPLIED TO SOFTEN, BUT NOT BURN OR MELT, THE MASTIC.

6) FLANGE COUPLING BANDS SHALL BE ALIGNED WITH THE MATCHING SLOTS, AND NUTS ON THE BOLTS TIGHTENED SECURELY.

NEOPRENE GASKET OR MASTIC SHALL BE USED BETWEEN FLANGES, AND NUTS WILL BE RETIGHTENED AFTER COMPLETE

ASSEMBLY.

1) WHEN SEVERAL DIFFERENT COATINGS OR CORRUGATIONS ARE CHECKED IN THE COLUMN BOXES, EACH TYPE IS

ACCEPTABLE, BUT ONLY ONE TYPE SHALL BE USED IN EACH INSTALLATION.

2) COUPLING BANDS PER DETAIL "A" SHALL HAVE THE SAME CORRUGATION REQUIREMENT AND THE SAME COATING

AS THE DESIGNATED PIPE.

3) ALL WELDS AND ALL HEAT AFFECTED AREAS ON COATED STEEL SHALL BE THOROUGHLY CLEANED AND TREATED

IN ACCORDANCE WITH ASTM'S.

4) FOR PIPE LARGER THAN 15" DIAMETER, THE ROD SHALL BE 1/2" DIAMETER. DIAMETER HOLES IN THE LUGS SHALL

BE 1/8" LARGER THAN THE DIAMETER OF THE ROD USED.

5) DURING FABRICATION, WHEN ASPHALT COATING IS NOT USED, RIVETED SEAMS SHALL BE CAULKED WITH AS ASPHALT OR TAR BASED MATERIAL MEETING ASTM A849 TO PROVIDE A WATERTIGHT SEAM. ALL CIRCUMFERENTIAL AND LONGITUDINAL SEAMS SHALL BE CAULKED BEFORE RIVETING. THIS SHALL BE ACCOMPLISHED BY APPLYING A UNIFORM BEAD OF THE ASPHALT OR TAR BASED COMPOUND TO THE INNER LAP SURFACE BEFORE RIVETING SUCH THAT WHEN THE RIVETS ARE IN PLACE ALL VOIDS ARE FILLED.

6) CLOSE RIVETED PIPE SHALL BE FABRICATED SO THAT THE RIVET SPACING IN THE CIRCUMFERENTIAL SEAMS

SHALL NOT EXCEED 3 INCHES.

NOTE: THE FOLLOWING DESIGNATIONS FOR PIPE CLASSIFICATIONS, CORRUGATIONS AND COATINGS WHEN REFERRED

TO ON THE DRAWINGS ARE IN ACCORDANCE WITH CURRENT ASTM'S:

A760 STANDARD SPECIFICATION FOR CORRUGATED STEEL PIPE, METALLIC-COATED FOR

SEWERS AND DRAINS.

A761 STANDARD SPECIFICATION FOR CORRUGATED STEEL STRUCTURAL PLATE,

ZINC-COATED, FOR FIELD BOLTED PIPE, PIPE ANCHORS, AND ARCHES.

A762 STANDARD SPECIFICATION FOR CORRUGATED STEEL PIPE, POLYMER PRECOATED

FOR SEWERS AND DRAINS.

A849 STANDARD SPECIFICATION FOR POST APPLIED COATINGS, PAVINGS, AND LININGS

FOR CORRUGATED STEEL SEWER AND DRAINAGE PIPE.

A885 STANDARD SPECIFICATION FOR STEEL SHEET, ZINC AND ARAMID FIBER

COMPOSITE-COATED FOR CORRUGATED STEEL SEWER, CULVERT AND

UNDERDRAIN PIPE.

INSTALL PIPE SO

RIVETS ARE ON

THE SIDE

SCALE:1 WATERTIGHT COUPLING BAND FOR ANNULAR PIPE

N.T.S.

SCALE:2 WATERTIGHT COUPLING BAND FOR HELICAL PIPE

N.T.S.

ISSUE

PD

PD

BD

MARK DATE DESCRIPTION

5/7/2025

6/11/2025 1/5/2026

60% Submittal 90% Submittal

100% Submittal

NUTRIENT REDUCTION

WETLAND

CHICKASAW COUNTY, IA

CHI941410B

IOWA DEPARTMENT OF

AGRICULTURE AND LAND

STEWARDSHIP

241731.01 22" x 34"

NJB

JGP

1937 N CHESTNUT ST

WAHOO, NE 68066

800.723.8567 | jeo.com

Organization Certificate of Authorization Number: CA-0069

JEO Project No.:

Sheet Size:

Drawn by:

QAQC:

Dr aw ing N am e:

S-

.01 .dw g Fil e P ath

: J :\P ro jec ts\

.01

-ID

AL

S

BP

W etl an d - C hic ka sa w

Co un ty\ 7 D es ign

\2 Dr aw ing s\_ Sh ee ts

Pl ott ed B y:

NA

TH

AN

B

LA

NK

MA

N Sh ee t S ize : A

NS

I E

XP

AN

D D

(3 4.0

0 X

.00

IN

CH

ES

Pl ot Sc ale : 1

:1

ADDITIONAL INFO:

U.4

SHEET TITLE

http://www.jeo.com