W912EK-17-B-0001_FINAL_PLANS.pdf

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ILLINOIS RIVER BASIN

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HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

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W912EK-17-B-0001

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2013 AND 2015 LEVEE REPAIRS

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Solicitation:

Contract:

APPROVAL RECOMMENDED BY:

APPROVED BY:

DISTRICT COMMANDER

of Engineers

US Army Corps fi

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GEOTECHNICAL BRANCHCHIEF,

DESIGN BRANCHCHIEF,

TECHNICAL SERVICES BRANCHCHIEF,

ENGINEERING & CONSTRUCTION DIVISIONCHIEF,

HYDROLOGY & HYDRAULICS BRANCHCHIEF, OF ALL DRAWINGS IN THIS SET.

SIGNATURES INDICATE OFFICIAL RECOMMENDATION

EMPLOYMENT AS REQUIRED BY ER 1110-1-8152.

DOCUMENTS WITHIN THE SCOPE OF THEIR

INDIVIDUALS APPEAR ON THESE PROJECT

SIGNATURES AND REGISTRATION DESIGNATIONS OF

DISTRICT CORPS OF ENGINEERS. THE INITIALS OR

THIS PROJECT WAS DESIGNED BY THE ROCK ISLAND

FEBRUARY 2017

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ABBREVIATIONS

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INTERSTATE HIGHWAY

FLOW ARROW

FILL

EXISTING GROUND

RIVER GAGE

CONTROL POINT

HORIZONTAL AND VERTICAL

HORIZONTAL CONTROL POINT

CENTERLINE

BREAKLINE

BORING LOCATION

BENCHMARK

BEDDING STONE

BOTTOM OF BORING534.00

LL PL W

(5)29 15 17

FILL

CONTENT

MOISTURE-

PLASTIC LIMIT-

LIQUID LIMIT-

CL - USCS LEAN CLAY

SC - CLAYEY SAND

SP - SAND, POORLY GRADED

(10)

GROUND ELEV. 550.0

DATE: 10/04/2013

EASTING: 1053996

NORTHING: 1786545

BOR. HS-13-02

CH - USCS FAT CLAY

41.9

97.8

< #200Nf

-PERCENT PASSING #200 SIEVE

HAMMER AND 30-INCH DROP

SPLIT SPOON ONE FOOT WITH 140 LB

-NUMBER OF BLOWS TO DRIVE STANDARD

SURFACE ELEVATION

-EXISTING GROUND OR WATER

-DATE DRILLED

LOCATION

-COORDINATE

-BORING NUMBER

WORK LIMITS

WETLAND

SAND

NAVIGATION CHANNEL

WATER LEVEL

US HIGHWAY

STATE HIGHWAY

SLOPE

RIVERMILE

RIPRAP

RAILROAD

NORTH INDICATOR

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WOULD NECESSITATE LAUNCHING OF DREDGE BY CRANE AT THE LOCATION SHOWN ON C-101 AND C-103.

11. DREDGE MAY BE LAUNCHED FROM TWO UPSTREAM BOAT RAMPS IF WATER CONDITIONS ALLOW. LOW WATER CONDITIONS

THIS PROJECT.

(HSSDD). COORDINATION WITH HSSDD AND THEIR CONTRACTOR IS REQUIRED. THE ADDITIONAL MITIGATION IS NOT PART OF

10. ADDITIONAL MITIGATION IS BEING CONSTRUCTED ADJACENT TO THIS PROJECT BY HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

ACTIVITIES SHALL BE MINIMIZED AND SHALL BE REPAIRED PRIOR TO PROJECT COMPLETION, AT THE CONTRACTOR’S EXPENSE.

TO THE REPAIR AREA MAY ALSO REQUIRE TRAVERSING THE LEVEE. DAMAGE TO THE LEVEE CAUSED BY CONSTRUCTION

F. ACCESS TO THE PROJECT SITE SHALL BE FROM PRIVATELY OWNED ACCESS ROAD BY WAY OF PHELPS DITCH ROAD. ACCESS

E. ROAD COMMISSIONERS WILL STRICTLY ENFORCE ALL LOAD LIMITS.

D. CONTRACTOR IS RESPONSIBLE TO RESTORE ROADS TO PRE-HAUL CONDITION AT NO ADDITIONAL COST TO THE GOVERNMENT.

MATERIAL AND TO ENSURE ROAD AND/OR BRIDGE DAMAGE IS MINIMIZED.

C. CONTRACTOR IS RESPONSIBLE TO THOROUGHLY DOCUMENT CONDITION OF ANY ROADS AND BRIDGES PRIOR TO HAULING

LOADS MAY BE ENFORCED.

B. DURING MONTHS EXPERIENCING WET WEATHER AND THAWS (TYPICALLY FEBRUARY THROUGH APRIL) MORE RESTRICTIVE

A. ROADS MAY HAVE WEIGHT LIMITATIONS ALONG THE ROADS AND OVER BRIDGES.

DRAINAGE DISTRICT, AND THE COR. CONTRACTOR SHALL VERIFY ELEVATIONS AND ACCESS REQUIREMENTS.

9. THE CONTRACTOR SHALL COORDINATE ALL ROAD ACCESS WITH THE COUNTY AND/OR TOWNSHIP ROAD COMMISSIONERS, THE

C. SOFTSHELL TURTLE - DREDGING ALLOWED JULY 1 TO OCTOBER 31.

B. CHORUS FROG - NO WORK ON LAND FEBRUARY 15 TO JUNE 30.

A. INDIANA AND NORTHERN LONEARED BATS - NO TREES CUTTING OCTOBER 1 TO MARCH 31.

8. EXCLUSION PERIODS:

AS SPECIFIED.

7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PRE AND POST CONDITION SURVEYS OF CONSTRUCTION FEATURES, CONTRACTOR AND APPROVED BY COR.

6. ALL FEATURES ARE PAPER ALIGNMENTS AND FINAL ALIGNMENT OF PROJECT FEATURES SHALL BE FIELD STAKED BY

NO WORK OR STAGING MAY TAKE PLACE OUTSIDE OF LIMITS SHOWN.

5. ALL WORK MUST REMAIN WITHIN THE WORK LIMITS AS SHOWN ON THE DRAWINGS. REPAIR AREA IS LOCATED IN A WETLAND AND

ILLINOIS ONE CALL SYSTEM, JULIE, AT 1-800-892-0123.

4. THE CONTRACTOR SHALL IDENTIFY AND AVOID ALL UTILITIES. AT LEAST TWO DAYS PRIOR TO ANY EXCAVATION, CALL STATE OF

THE BEARDSTOWN GAGE AT BEARDSTOWN, ILLINOIS AND THE CHANDLERVILLE GAGE AT CHANDLERVILLE, ILLINOIS.

SPECIFICATIONS FOR HYDRAULIC DATA FOR THE SANGAMON AND ILLINOIS RIVERS. HYDRAULIC DATA WAS OBTAINED FROM

3. WATER DEPTH OVER THE EXISTING GROUND VARIES DEPENDING ON SANGAMON AND ILLINOIS RIVER LEVELS. SEE

LOCATED ON THE RIVER SIDE OF THE HAGER SLOUGH LEVEE

WETLAND MITIGATION SITE IS LOCATED ALONG MUD SLOUGH IN THE PROTECTED AREA. THE TURTLE MITIGATION AREA IS

2. THE REPAIR AREA IS LOCATED ON THE LANDSIDE OF THE HAGER SLOUGH LEVEE, ADJACENT TO THE SANGAMON RIVER. THE

1. THE HAGER SLOUGH SPECIAL DRAINAGE DISTRICT IS LOCATED IN CASS COUNTY, ILLINOIS.

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MASON COUNTY

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SURVEY CONTROL

POINT NORTH EAST DESCRIPTIONNGVD 1929 ELEV.

STAMPED "HAGER 2 2014"

14-014-105 1241521.83 2242642.80 452.12 2" USACE ALUM CAP ON 5/8" REBAR

STAMPED "HAGER 1 2014"

14-014-104 1240164.59 2246771.12 449.31 2" USACE ALUM CAP ON 5/8" REBAR

RECORD ELEV 488.0 (NAVD88)

14-014-103 1239666.86 2240711.65 438.35 NGS-13N11E PID DG5993

RECORD ELEV 484.50 (NAVD88)

14-014-102 1223467.72 2254539.13 484.85 NGS-T240 1961 PID LD0188

14-014-102 NGS T240 1961

14-014-103 NGS CASS 13N11E

14-014-104 HAGER 1

14-014-105 HAGER 2

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GENERAL NOTES

NAVD 88 DATUM SUBTRACT 0.36 FEET.

3. TO CONVERT PLAN DATUM NGVD 1929 TO

GEOID 12A, UNITS ARE US SURVEY FEET.

IL WEST - 1202 NAD83, VERTICAL DATUM IS NGVD 1929

2. HORIZONTAL SURVEY DATUM IS STATE PLANE

JANUARY 13th, 14, 15, 22, & 23rd , 2014.

1. SURVEY OF HAGER SLOUGH AREAS COMPLETED ON

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BOTTOM OF BORINGBOTTOM OF BORING

HAND AUGER HAND AUGER

<200 <200

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HAND AUGER

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GROUND ELEV. 437.8’

DATE: 11/25/2013

EASTING: 2243288

NORTHING: 1241217

BOR. HS-13-04

2.4

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BOTTOM OF BORING

HAND AUGER

<200

GROUND ELEV. 436.8’

DATE: 11/25/2013

EASTING: 2244067

NORTHING: 1240949

BOR. HS-13-05

9.7

D10D30D60

WPLLL

BOTTOM OF BORING

HAND AUGER

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GROUND ELEV. 436.7’

DATE: 11/25/2013

EASTING: 2244893

NORTHING: 1240692

BOR. HS-13-06

57.2

D10D30D60

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BOTTOM OF BORING

HAND AUGER

<200

GROUND ELEV. 436.3’

DATE: 11/25/2013

EASTING: 2245670

NORTHING: 1240432

BOR. HS-13-07

57.0

WATERWATER

WATER

SP BR MEDIUM TO FINE SAND

SP BR MEDIUM TO FINE SAND SP BR MEDIUM TO FINE SAND

SP BR MEDIUM TO FINE SAND

CL GR SANDY LEAN CLAY

SP-SC GR CLAYEY MEDIUM TO FINE SAND

SP GR MEDIUM TO FINE SAND

CL GR SANDY LEAN CLAY WITH SILT SEAMS

W.L.

W.L. W.L. W.L.

SP MEDIUM TO FINE SAND

CL GR LEAN CLAY WITH SAND

CH GR FAT CLAY

WITH IRON STAINING

CL-CH GR SANDY LEAN TO FAT CLAY

CH DK GR FAT CLAY CL GR SANDY LEAN CLAY

CL LT GR SANDY LEAN CLAY

CH DK GR FAT CLAY

0.240.330.44 0.350.48

0.3 0.3 0.4

0.080.260.35

0.250.320.38

0.26

0.250.350.45

MORE SAND WITH DEPTH

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426.8

428.7

426.8

WATER SURFACE ELEV. 434.8’

DATE: 8/08/2013

EASTING: 2243936

NORTHING: 1241311

BOR. HS-13-02

WATER SURFACE ELEV. 435.1’

DATE: 8/08/2013

EASTING: 2245703

NORTHING: 1240730

BOR. HS-13-01

WATER SURFACE ELEV. 434.6’

DATE: 8/08/2013

EASTING: 2242179

NORTHING: 1241806

BOR. HS-13-03

427.6 427.3 427.1

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A1

BORING LOGS

0 10’5’SCALE : 1"=5’-0"

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440440

400 400

D10D30D60

WPLLL

BOTTOM OF BORING

HAND AUGER

<200

GROUND ELEV. 436.9’

DATE: 11/25/2013

EASTING: 2246833

NORTHING: 1240063

BOR. HS-13-08

BOTTOM OF BORING

D10D30D60

WPLLL Nf

20 (3)

(3)4

(2)4

(8)4

(10)3

(4)20

(1)45

(2)30

(2)19

(2)29

(9)19

3…" HOLLOW STEM AUGER

GROUND ELEV. 453.5’

DATE: 12/11/2013

EASTING: 2244947

NORTHING: 1240755

BOR. HS-13-09

W.L.

<200

BOTTOM OF BORING

D10D30D60

WPLLL Nf

21 (9)

(2)20

(1)XX

(2)6

(2)4

(3)4

(9)8

(3)24

(3)21

3…" HOLLOW STEM AUGER

GROUND ELEV. 454.1’

DATE: 12/11/2013

EASTING: 2243309

NORTHING: 1241285

BOR. HS-13-10

SP BR MEDIUM TO FINE SAND

W.L.

<200

19 (9)

SP BR MEDIUM TO FINE SAND

85.9

2.4

5.4

5.3

78.5

2.5

3.6

4.8

CL DK BR SANDY LEAN CLAY

CL BR SANDY LEAN CLAY

CH DK GR FAT CLAY, WITH ORGANICS

CL DK GR SANDY LEAN CLAY

SP-SC GR CLAYEY MEDIUM TO FINE SAND

CL DK BR SANDY LEAN CLAY

CL BR SANDY LEAN CLAY

SP GR MEDIUM TO FINE SAND

CH DK GR FAT CLAY

FAT CLAY, WITH IRON STAINING

CL-CH GR BR MOTTLED LEAN TO

96.6

83.8

MORE SAND WITH DEPTH

CL GR SANDY LEAN CLAY

E L E

V A

T

IO

N S R

E F

E R

E N

C E N

G V

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427.9

422.5

424.6

180+00

190+00

210+00

0120+

00130+ 00140+

00150+

200+00

0+

0+

300+00

290+

280+00

250+00

270+00

260+00

240+00

230+00

220+00

A N

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BEARDSTOWN

P H

E L P S

DI

TCH

RD

CLEAR LAKE RD

CHANDLERVILE RD

D U C

K S

LO

U

G H R

D

CHANDLE

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LE

RD

SANGAMON RIVER

IL

LI

NO

IS

R

IV

ER

T R E A D

W A Y L

A K E

WILDLIFE AREA

SANGANOIS STATE

CASS COUNTY

MASON COUNTY

SANG

AM

O N

RI

VER

0 4000’SCALE : 1"=2000’-0" 2000’

S

IT

E P

L

SITE PLAN

MASON COUNTYSCHUYLER COUNTY

FLO

FLOW

CLEAR LAKE SPECIAL DRAINAGE DISTRICT

HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

K N

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MITIGATION SITE ACCESS

PLACE GRAVEL

ACCESS ROAD

EXISTING

STAGING AREA

CONSTRUCT SEEPAGE BERM

NORTHING EASTING

STAGING AREA COORDINATES

AA

BB

CC DD

EE

N 1239612.88

N 1239820.00

N 1239815.76

N 1239722.31

N 1239612.88

E 2244947.76

E 2244947.74

E 2244704.00

E 2244469.04

E 2244431.05

EE

DD

CC

BB

AA

C1

D1

STAGING AREA

0 600’SCALE : 1"=300’-0" 300’

DMMP STOCKPILE SITES

0 1600’SCALE : 1"=800’-0" 800’

SEE C1

BEARDSTOWN DMMP STOCKPILE SITE 5

SEE C1

BEARDSTOWN DMMP STOCKPILE SITE 1

SEE D1

STAGING AREA

W E

K -1

-B -0

GENERAL SHEET NOTES

A

N D

L

E V

E E R

E P

A

IR

S

SEE SHEETS C-102 TO C-104

DREDGING AREA

SEE SHEETS C-102 TO C-104

CONSTRUCT SEEPAGE BERM

SEE SHEET L-101

CONSTRUCT MITIGATION SITE

DREDGE LAUNCH LOCATION (CRANE ONLY)

SEE NOTE 5

EXISTING BRIDGE

SEE NOTE 5

EXISTING BRIDGE

CROSSING

EQUIPMENT AVOID

PIPES HEAVY

PUMP DISCHARGE

B E

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IN

H

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SEE NOTE 5

EXISTING BRIDGE

PROJECT SITE ACCESS

LAKE BOAT RAMP

LOCATION CLEAR

DREDGE LAUNCH

4T H

ST

6T H

ST

TO BOAT RAMP ACCESS

SITE ACCESS

5. COORDINATE WITH TOWNSHIP FOR BRIDGE WEIGHT LIMITS.

OPERATIONS.

REMOVED TO CONSTRUCT CONTAINMENT BERMS FOR DREDGE

DMMP STOCKPILE SITES. NO MORE THAN 5,000 CY SHOULD BE

4. THERE IS APPROX. 400,000 CY OF MATERIAL AVAILABLE AT THE

3. STAGING AREA SHALL NOT IMPEDE IRRIGATION SYSTEM.

EITHER ACCESS RD CAN BE TAKEN TO THE REPAIR AREA.

PHELPS DITCH RD AND TRAVEL 2.9 MILES TO STAGING AREA.

DUCK SLOUGH RD AND TRAVEL2.4 MILES. TURN NORTH ON

CHANDLERVILLE RD TRAVEL .5 MILES AND TURN NORTH ON

2. DIRECTIONS TO REPAIR AREA: BEGINNING IN BEARDSTOWN

DRAINAGE DITCH .5 MILES TO REACH THE MITIGATION SITE.

"PUMP FIELD". TRAVEL ALONG THE WEST SIDE OF THE

SOUTHEAST TO CROSS OVER A DRAINAGE DITCH AND ENTER

ON THE LEVEE .15 MILES AND THEN TRAVEL .1 MILES

THE PATH LOCATED ATOP THE EXISTING LEVEE. TRAVEL EAST

CONTINUE ON CLEAR LAKE RD 1.5 MILES UNTIL YOU REACH

LAKE RD. TRAVEL EAST .75 MILES AND TURN NORTH TO

90 DEGREE BEND TO THE NORTH. CONTINUE NORTH ON CLEAR

RD MAKES A 90 DEGREE BEND TO THE WEST AND A IMMEDIATE

MILES AND TURN NORTH ONTO CLEAR LAKE RD. CLEAR LAKE

ST TURNS INTO CHANDLERVILLE RD. CONTINUE APPROX 4.5

IL: TRAVEL EAST ON 4TH ST, LEAVING BEARDSTOWN. EAST 4TH

1. DIRECTIONS TO MITIGATION SITE: BEGINNING IN BEARDSTOWN,

/0

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US Army Corps

P R

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43543

ILLINOIS

CASS COUNTY

N

A1

HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

A N

S I

D c p w w o rk in g \m v r\ b e d d ll h \d

\P

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C-102

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P A

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IN

P L

0 120’SCALE : 1"=60’-0" 60’

NORTHING EASTING

WORK LIMIT COORDINATES

REPAIR AREA PLAN STA. 76+00 TO STA. 84+16.52

N 1240329.55

N 1241220.19

N 1241328.42

N 1240468.87

N 1241376.18

N 1241469.27

E 2245700.73

E 2242989.57

E 2242680.48

E 2245753.76

E 2242992.86

E 2242735.52

S T

A T

O S

T A .5

W E

K -1

-B -0

A

N D

L

E V

E E R

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A

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SANGAMON RIVERFLOW

S E

E S

H E

E T C -1

M A

T C

H L

IN

E S

T A

WORK LIMITS

A1 C-301

E 2245622.09

N 1240446.15

EXISTING BOIL

OF LEVEE

APPROXIMATE CENTERLINE

SANGAMON RIVER DREDGING AREA

OF LEVEE WITH SAND OBTAINED FROM

CONSTRUCT SEEPAGE BERM ON LANDSIDE

WILDLIFE AREA

SANGANOIS STATE

A

D

E

.0

N

.1

S T

A .5

E N

D S

E E P

A G

E

B

E R

M

IDNR PROPERTY LINE

DREDGING AREA

SEE NOTE 3

STOCKPILE STRIPPED MATERIAL

VEGETATION FREE ZONE

DISPOSE OF MATERIALS OFF SITE

WITHIN THE BERM CONSTRUCTION LIMITS

REMOVE TREES AND GRUB STUMPS

CONSTRUCT CONTAINMENT BERM

M A

X

DO NOT DISTURB

EXISTING TREES

CONSTRUCT TURTLE MITIGATION BERM C1

C-301

MOWED.

15’ FROM THE BERM TOE AND MUST NOT BE SPRAYED OR

FACILITATE FUTURE BOLTONIA GROWTH THIS AREA MUST BE

SHALL BE STOCKPILED ALONG THE WORK LIMIT EDGE TO

BOLTONIA MITIGATION BERM TOE. ALL STRIPPED MATERIAL

3. STRIP 6" FROM LANDSIDE LEVEE CROWN SHOULDER TO

BETWEEN JULY 1ST AND FEBRUARY 14TH.

1ST AND OCTOBER 31ST. HAULED SAND MAY BE PLACED

2. DREDGING WILL ONLY BE ALLOWED BETWEEN JULY

AT A SLOPE OF 10H:1V.

1. END OF SAND BERM SHALL TRANSITION TO EXISTING GROUND

GENERAL SHEET NOTES

NORTHING EASTING

DREDGING AREA COORDINATES

F

E

D

C

B

A

N 1240670.04

N 1241274.13

N 1241768.68

N 1240793.56

N 1241398.52

N 1241893.82

E 2245725.42

E 2243885.00

E 2242126.97

E 2245765.96

E 2243922.89

E 2242162.17

10H:1V

/0

/0

A N

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D c p w w o rk in g \m v r\ b e d d ll h \d

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C-103

S S C

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IL

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SANGAMON RIVER

ILLINOIS

CASS COUNTY

N

R E

P A

IR

A

R E

A P

L

FLOW

N

M

A D

H

A S S

H O

W N

A J

G

H A

G E

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L O

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P E

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L D

R A

IN

A G

E D

IS

T R

IC

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WILDLIFE AREA

SANGANOIS STATE

HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

OF LEVEE

APPROXIMATE CENTERLINE

0 120’SCALE : 1"=60’-0" 60’

S E

E S

H E

E T C -1

M A

T C

H L

IN

E S

T A

DREDGING AREA

REPAIR AREA PLAN STA. 65+00 TO STA. 76+00

B

E

S E

E S

H E

E T C -1

M A

T C

H L

IN

E S

T A

S T

A T

O S

T A

A1 C-301

NORTHING EASTING

DREDGING AREA COORDINATES

F

E

D

C

B

A

N 1240670.04

N 1241274.13

N 1241768.68

N 1240793.56

N 1241398.52

N 1241893.82

E 2245725.42

E 2243885.00

E 2242126.97

E 2245765.96

E 2243922.89

E 2242162.17

W E

K -1

-B -0

NORTHING EASTING

WORK LIMIT COORDINATES

N 1240329.55

N 1241220.19

N 1241328.42

N 1240468.87

N 1241376.18

N 1241469.27

E 2245700.73

E 2242989.57

E 2242680.48

E 2245753.76

E 2242992.86

E 2242735.52

SANGAMON RIVER DREDGING AREA

OF LEVEE WITH SAND OBTAINED FROM

CONSTRUCT SEEPAGE BERM ON LANDSIDE

A

N D

L

E V

E E R

E P

A

IR

S

DISPOSE OF MATERIALS OFF SITE

WITHIN THE BERM CONSTRUCTION LIMITS

REMOVE TREES AND GRUB STUMPS

SEE NOTE 2

STOCKPILE STRIPPED MATERIAL

CONSTRUCT CONTAINMENT BERM

CONSTRUCT TURTLE MITIGATION BERM

DO NOT DISTURB

EXISTING TREES

WORK LIMITS

C1 C-301

GENERAL SHEET NOTES

ACCESS ROAD

MOWED.

15’ FROM THE BERM TOE AND MUST NOT BE SPRAYED OR

FACILITATE FUTURE BOLTONIA GROWTH THIS AREA MUST BE

SHALL BE STOCKPILED ALONG THE WORK LIMIT EDGE TO

BOLTONIA MITIGATION BERM TOE. ALL STRIPPED MATERIAL

2. STRIP 6" FROM LANDSIDE LEVEE CROWN SHOULDER TO

BETWEEN JULY 1ST AND FEBRUARY 14TH.

1ST AND OCTOBER 31ST. HAULED SAND MAY BE PLACED

1. DREDGING WILL ONLY BE ALLOWED BETWEEN JULY

PLACE IN BOLTONIA MITIGATION BERM AREA

SAND BERM FOOTPRINT PRIOR TO WORK.

REMOVE EXISTING GRAVEL UNDER NEW

/0

/0

EXTEND RELIEF WELL SYSTEM PAST SEEPAGE BERM TOE

AVOID DAMAGE TO EXISTING RELIEF WELL SYSTEM

ID

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US Army Corps

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T R

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C-104

S S C

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SANGAMON RIVER

ILLINOIS

CASS COUNTY

N

R E

P A

IR

A

R E

A P

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M

A D

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A S S

H O

W N

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WORK LIMITS

H A

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L O

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P E

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IA

L D

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IN

A G

E D

IS

T R

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WILDLIFE AREA

SANGANOIS STATE

HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

OF LEVEE

APPROXIMATE CENTERLINE

0 120’SCALE : 1"=60’-0" 60’

S E

E S

H E

E T C -1

M A

T C

H L

IN

E S

T A

E 2242823.27

N 1241377.90

EXISTING BOIL 24

REPAIR AREA PLAN STA. 52+65.41 TO STA. 65+00

DREDGING AREA

C

F

S T

A .4

T

O S

T A

A1 C-301

W E

K -1

-B -0

S T

A .4

B E

G

IN

S

E E P

A G

E B

E R

M

NORTHING EASTING

WORK LIMIT COORDINATES

N 1240329.55

N 1241220.19

N 1241328.42

N 1240468.87

N 1241376.18

N 1241469.27

E 2245700.73

E 2242989.57

E 2242680.48

E 2245753.76

E 2242992.86

E 2242735.52

SANGAMON RIVER DREDGING AREA

OF LEVEE WITH SAND OBTAINED FROM

CONSTRUCT SEEPAGE BERM ON LANDSIDE

A

N D

L

E V

E E R

E P

A

IR

S

DISPOSE OF MATERIALS OFF SITE

WITHIN THE BERM CONSTRUCTION LIMITS

REMOVE TREES AND GRUB STUMPS

SEE NOTE 3

STOCKPILE STRIPPED MATERIAL

CONSTRUCT CONTAINMENT BERM

M A

X

’CONSTRUCT TURTLE MITIGATION BERM

DO NOT DISTURB

EXISTING TREES

FOOTPRINT PRIOR TO WORK

UNDER NEW SAND BERM

REMOVE EXISTING GRAVEL

PLACE IN BOLTONIA MITIGATION BERM AREA

SAND BERM FOOTPRINT PRIOR TO WORK

REMOVE EXISTING GRAVEL UNDER NEW

MINIMIZE HAULING SEE SHEET C-105 FOR DETAILS

STOCKPILE SITE 1 OR 5 OR WITH STRIPPED MATERIAL

WITH SAND OBTAINED FROM BREARDSTOWN DMMP

CONSTRUCT DREDGED MATERIAL CONTAINMENT BERM

C1 C-301

GENERAL SHEET NOTES

NORTHING EASTING

DREDGING AREA COORDINATES

F

E

D

C

B

A

N 1240670.04

N 1241274.13

N 1241768.68

N 1240793.56

N 1241398.52

N 1241893.82

E 2245725.42

E 2243885.00

E 2242126.97

E 2245765.96

E 2243922.89

E 2242162.17

ACCESS ROADACCESS ROAD

MOWED.

15’ FROM THE BERM TOE AND MUST NOT BE SPRAYED OR

FACILITATE FUTURE BOLTONIA GROWTH THIS AREA MUST BE

SHALL BE STOCKPILED ALONG THE WORK LIMIT EDGE TO

BOLTONIA MITIGATION BERM TOE. ALL STRIPPED MATERIAL

3. STRIP 6" FROM LANDSIDE LEVEE CROWN SHOULDER TO

BETWEEN JULY 1ST AND FEBRUARY 14TH.

1ST AND OCTOBER 31ST. HAULED SAND MAY BE PLACED

2. DREDGING WILL ONLY BE ALLOWED BETWEEN JULY

AT A SLOPE OF 10H:1V.

1. END OF SAND BERM SHALL TRANSITION TO EXISTING GROUND

10H:1V

/0

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EXTEND RELIEF WELL SYSTEM PAST SEEPAGE BERM TOE

AVOID DAMAGE TO EXISTING RELIEF WELL SYSTEM

A1 C-302

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1829’

1940’

DREDGING AREA

WORK LIMITS

OF LEVEE

APPROXIMATE CENTERLINE

EXISTING BOIL

EXISTING BOIL

SANGAMON RIVERFLOW

W E

K -1

-B -0

IDNR PROPERTY LINE

C1

C-301

A1 NO SCALE

WILDLIFE AREA

SANGANOIS STATE

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SEE NOTE 3

STAGING AREA

PLACE IN BOLTONIA MITIGATION BERM AREA

SAND BERM FOOTPRINT PRIOR TO WORK

REMOVE EXISTING GRAVEL UNDER NEW

NORTHING EASTING

ACESS ROAD COORDINATES

N 1240418.87

N 1240364.28

N 1240800.68

N 1240804.96

N 1239624.69

N 1239612.88

E 2245718.68

E 2245697.90

E 2244396.87

E 2244357.90

E 2244337.70

E 2244335.72

3 4

GENERAL SHEET NOTES

AREA AS NEEDED. REMOVE AFTER PROJECT IS COMPLETE.

3. PLACE UP TO 6" OF ILDOT CA-6 CRUSHED STONE IN STAGING

CONTRACTOR OPERATIONS.

2. FORESHORE TREES SHALL NOT BE DAMAGED BY

MATERIAL. MINIMIZE TRUCKING AS MUCH AS IS PRACTICABLE.

FROM BEARDSTOWN DMMP SITES 1 OR 5 OR FROM STRIPPED

CONTAINMENT BERM SHALL BE CONSTRUCTED WITH SAND1.

ACCESS ROAD

ACCESS ROAD

SIDECAST SAND AT 6:1 SLOPE TO CONSTRUCT TURTLE MITIGATION BERM

DO NOT DISTURB

EXISTING TREES

OPERATIONS AND REESTABLISH BERMS.

CIRCUMSTANCE. IF MATERIAL ESCAPES CONTAINMENT, STOP DREDGING

CONTRACTOR MAY NOT PUMP DIRECTLY INTO WETLANDS UNDER ANY

TO ALLOW FOR SETTLING AND POND AND PUMP OPERATIONS AS NEEDED.

AREA THAT WILL DIRECTLY RECEIVE HYDRAULICALLY DREDGED MATERIAL

DREDGING CONTAINMENT BERM SHALL BE CONSTRUCTED AROUND ANY

MATERIALS WITHIN SAND BERM FOOTPRINT

UTILIZED INITIALLY TO CONTAIN DREDGE

PLACEMENT COMMENCES. BERM MAY BE

15’ FROM TOE OF SAND BERM BEFORE

HIGH, 10’ WIDE BOLTONIA MITIGATION BERM

STOCKPILE ALL STRIPPED MATERIALS IN 3’

PLACE IN BOLTONIA MITIGATION BERM AREA

SAND BERM FOOTPRINT PRIOR TO WORK.

REMOVE EXISTING GRAVEL UNDER NEW

D R

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G P

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DREDGING PLAN

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EXISTING LEVEE

EXISTING GROUND

LANDSIDE

W O

R K L

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EL. 438–

EXISTING

A S S

H O

EL. 444.4

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SANGAMON RIVER

60’

8’0 16’SCALE : 1"=8’-0"A1

VARIES

4 MAX.

15’

2 MIN.

M A

X

W E

K -1

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VEGETATION FREE ZONE

2.5

EL. 445.0

10’

SEEPAGE BERM TYPICAL SECTION

C1 8’0 16’SCALE : 1"=8’-0"

DREDGING AREA TYPICAL SECTION

85’

4 MAX.

APPROX. EL. 426.5

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SANGAMON RIVER

APPROX. EL. 452.0

SEE NOTE 4

DREDGED MATERIAL CONTAINMENT BERM

CREATE TURTLE MITIGATION BERM

PLACE SAND AT 6:1 SLOPE TO

APPROX. EL. 432.0

EXISTING GROUND

CONSTRUCT SEEPAGE BERM ON LANDSIDE OF LEVEE

A

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GENERAL SHEET NOTES

DO NOT DISTURB

EXISTING TREES

APPROX. EL. 438.0

TOP OF BANK

(BOLTONIA MITIGATION BERM)

STOCKPILE STRIPPED MATERIAL

116’

FROM LANDSIDE CROWN SHOULDER

VARY SLOPE TO MAINTAIN 116’ OFFSET

DREDGED MATERIALS WITHIN SAND BERM FOOTPRINT.

5. STRIPPED MATERIALS MAY BE UTILIZED INITIALLY TO CONTAIN

STOP DREDGING OPERATIONS AND REESTABLISH BERMS.

CIRCUMSTANCE. IF DREDGED MATERIAL ESCAPES SAND BERM

DIRECTLY PUMPED INTO THE WETLAND AREA UNDER ANY

COMMENCING DREDGING OPERATIONS. SAND MAY NOT BE

4. CONSTRUCT DREDGED MATERIAL CONTAINMENT BERM

JULY 1ST AND FEBRUARY 14TH.

AND OCTOBER 31ST. HAULED SAND MAY BE PLACED BETWEEN

DREDGING WILL ONLY BE ALLOWED BETWEEN JULY 1ST

3. CONSTRUCT SEEPAGE BERM ON LANDSIDE OF LEVEE.

2. THERE IS NO WORK ON CROWN OR RIVERSIDE SLOPE OF LEVEE.

CLASSIFIED CLEAN SAND.

1. MATERIAL FOR SAND EMBANKMENT MATERIAL SHALL BE

AND PLACE IN BOLTONIA MITIGATION BERM

SHOULDER TO VEGETATION FREE ZONE

STRIP 6" FROM LANDSIDE LEVEE CROWN

50% ACE WATER EL. 440.5

50% ACE WATER EL. 440.5

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EXISTING LEVEE

LANDSIDE

W O

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EXISTING

A S S

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60’

8’0 16’SCALE : 1"=8’-0"A1

VARIES

15’

2 MIN.

W E

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VEGETATION FREE ZONE

2.5

EL. 445.0

10’

RELIEF WELL SYSTEM EXTENSION

C1 8’0 16’SCALE : 1"=8’-0"

APPROX. EL. 452.0

A

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GENERAL SHEET NOTES

DO NOT DISTURB

EXISTING TREES

116’

FROM LANDSIDE CROWN SHOULDER

VARY SLOPE TO MAINTAIN 116’ OFFSET

50% ACE WATER EL. 440.5

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RISER DETAIL

REMOVE EXISTING RISER

INSTALL CORRUGATED PLASTIC PIPE TEEPLASTIC DRAIN PIPE WITH FABRIC SLEEVE

INSTALL 10" DIAMETER CORRUGATED PERFORATED

2. THE RISER SHALL BE PAINTED A HIGH VISIBILITY COLOR.

SYSTEM.

CORRUGATED PERFORATED PIPE IN THE EXISTING RELIEF WELL

1. THE CONTRACTOR SHALL CONFIRM THE SIZE OF THE EXISTING

PLASTIC DRAIN PIPE WITH FABRIC SLEEVE

INSTALL 10" DIAMETER CORRUGATED PERFORATED

.5 ’1 .5

EL. 438–

EXISTING

INSTALL NEW RISER WITH REMOVABLE CAP

INSTALL NEW RISER WITH REMOVABLE CAP

WITH FABRIC SLEEVE

PERFORATED PLASTIC DRAIN PIPE

INSTALL 10" DIAMETER CORRUGATED

WITHOUT FABRIC SLEEVE

PERFORATED PLASTIC DRAIN PIPE

INSTALL 10" DIAMETER CORRUGATED

INSTALL CORRUGATED PLASTIC PIPE ELBOW

INSTALL CORRUGATED PLASTIC PIPE ELBOW

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HAGER SLOUGH SPECIAL DRAINAGE DISTRICT

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0 4000’SCALE : 1"=2000’-0" 2000’

N

0 4’SCALE : 1"=2’-0" 2’A1

C1

ILLINOIS

CASS COUNTY

SPACING, TO PROVIDE A DIVERSE MIXTURE

A TRIANGULAR PATTERN, AT 11.5’ X 11.5’

TREE SEEDLINGS AND SHRUBS PLANTED IN

SITE BOUNDARY (44 ACRES)

M U

D S

L O

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WETLAND MITIGATION PLAN

MITIGATION SITE ACCESS

NORTHING EASTING

MITIGATION COORDINATES

A B

C D

E F

G

H

H

G

F

E

D

C

B

A

W E

K -1

-B -0

34.5’ 34.5’ 40.3’

11.5’11.5’11.5’

TREE AND SHRUB PLANTING PLAN

ANY SPECIES

CONTAINERIZED TREE

HICKORY SAPLING

SHELL BARK

ANY SPECIES

CONTAINERIZED TREE

SAPLING

OVERCUP OAK

SAPLING ANY SPECIES

SAPLING ANY SPECIES SAPLING ANY SPECIES SAPLING ANY SPECIES

SAPLING ANY SPECIES SAPLING ANY SPECIES

SAPLING ANY SPECIES

SAPLING ANY SPECIES

SAPLING ANY SPECIES SAPLING ANY SPECIES SAPLING ANY SPECIES SAPLING ANY SPECIES

SAPLING ANY SPECIES

SAPLING ANY SPECIESSAPLING ANY SPECIES

SAPLING ANY SPECIES

SAPLING

OVERCUP OAK

HICKORY SAPLING

SHELL BARK

T R

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ANY SPECIES

SAPLING

N 1234648.5

N 1234259.3

N 1234744.6

N 1234762.4

N 1235369.0

N 1235413.6

N 1235590.9

N 1235602.0

E 2252194.3

E 2254225.7

E 2254387.4

E 2253490.9

E 2253497.8

E 2253221.6

E 2252791.1

E 2252207.9

A

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GENERAL SHEET NOTES

PRIOR TO CONTRACT)

(TO BE PLANTED BY HSSDD

SHRUB ANY SPECIES

NO TREES MAY BE PLACED IN THESE AREAS

PECAN SAPLING

PIN OAK SAPLING BUR OAK SAPLING

PECAN SAPLING

PIN OAK SAPLING BUR OAK SAPLING

ENSURE 7 SAPLINGS AND 2 CONTAINERIZED TREES ARE PLANTED

IN EACH OF 720 PLOTS,

PLANT THE REMAINING 12 SAPLINGS ON THE SAME 11.5’ TRIANGULAR SPACING PATTERN

IN EACH OF 24 PLOTS,

THE CONTAINER AND INSPECTED FOR ANY ROOT ISSUES.

APPROXIMATELY THREE TIMES AS WIDE AS THE ROOT BALL DIAMETER. THE ROOT BALL SHOULD BE CAREFULLY REMOVED FROM

2. CONTAINERIZED TREES MUST BE 3-6’ TALL WITH A MINIMUM 1/2" CALIPER READING AT THE ROOT FLAIR. EXCAVATION SHOULD BE

USING A DIBBLE BAR OR SPADE. HOLES SHALL BE WIDER AND DEEPER THAN THE ROOT SYSTEMS OF THE BARE ROOT STOCK.

1. BARE ROOT SEEDLING SHALL GENERALLY BE PLANTED WHEN THEY ARE DORMANT. CIRCULAR HOLES SHOULD BE EXCAVATED

TREE PLANTING NOTES

PERIODS.

5. BOTTOM ELEVATIONS MAY VARY UP TO 6" TO PROVIDE MORE DIVERSITY AND WET CONDITIONS IN SOME AREAS DURING DRY

TOPSOIL SHALL BE HANDLED AS LITTLE AS POSSIBLE AND RE- SPREAD AS SOON AS POSSIBLE.

4. A TOPSOIL LAYER WITHIN THE MITIGATION AREA 12-18 INCHES THICK WAS CONSTRUCTED BY HSSDD PRIOR TO CONSTRUCTION.

3. PLANTING MAY OCCUR BETWEEN JULY 1ST AND FEBRUARY 14TH.

DISTURBANCE.

2. UTILIZE TIMBER MATS, PREFABRICATED EQUIPMENT MATS, AND/OR LOW GROUND PRESSURE EQUIPMENT TO MINIMIZE

AS NOTED.

1. SITE WILL BE PREPARED AND SEEDED BY SEPARATE CONTRACT PRIOR TO CONSTRUCTION. CONTRACTOR SHALL PLANT TREES

GRADING NOTES

4. TREES SHALL BE PLANTED TO ENSURE THAT THE SPECIES ARE INTERMIXED WITH EACH PLOT.

3. TREE SPECIES AND PLANTING RATES ARE PROVIDED IN THE TREE PLANTING SCHEDULE.

2. FINAL TREE LOCATIONS SHALL BE SURVEYED AND SUBMITTED AS SPECIFIED.

1. CONTRACTOR SHALL PLANT TREES IN THE PLOTS SHOWN, FOR 24 ACRES OF MITIGATION.

SWAMP WHITE OAK SAPLING

ENSURE 10 SAPLINGS ARE PLANTED

IN EACH OF 48 PLOTS,

SWAMP WHITE OAK SAPLING

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0 4’SCALE : 1"=2’-0" 2’A1

CONTAINER TREE TYPICAL SECTION

W O

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0 4’SCALE : 1"=2’-0" 2’A4

SAPLING TREE TUBE TYPICAL DETAIL

TO REMAIN

EXISTING TREES (TYP)

MIN. 1/2" CALIBER READING AT ROOT FLAIR

EXISTING GROUND (VARIES)

TO EARTHWORK OPERATIONS

INSTALL SILT FENCE PRIOR

T

O

3’

VARIED BOTTOM ELEVATIONS (BY OTHERS)

12" TO 18" THICK TOPSOIL LINING WITH

PRUNE ALL MATTED, DEAD, DISEASED OR TWISTED ROOTS DAMAGING ROOTBALL OR PLANT

FROM CONTAINER WITHOUT

CAREFULLY REMOVE ROOTBALL

3 x 0

EXISTING GROUND (VARIES)

WIDE AS THE ROOTBALL DIAMETER

ENSURE EXCAVATION IS 3 TIMES AS WIDE AS THE ROOT SPREAD

ENSURE EXCAVATION IS 3 TIMES AS

BACKFILL IS ADDED IN LAYERS

SPREAD ROOTS HORIZONTALLY AS

11’6" 11’6"4’2"

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SITE BOUNDARY

SUPPORT AND SECURE TREE TO POSTS (TYP.)

INSTALL TWO POSTS PER TREE FOR ADDED

INSTALL 24" TREE TUBE

SUPPORT AND SECURE TREE TO POSTS (TYP.)

INSTALL TWO POSTS PER TREE FOR ADDED

FORESTED WETLAND TREE PLANTING SCHEDULE

INSTALL 24" TREE TUBE

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PL99_118L-101.dgn, DETAIL

PL99_118L-301.dgn, DETAIL