Monroe County, IL

130 public highway bridges

Monroe County Bridge Snapshot

Monroe County, Illinois contains 130 public highway bridges in the FHWA National Bridge Inventory. Roughly 57.7% are rated “Good,” 30% “Fair,” 6.9% “Poor,” and 6.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IL are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

130
Total Bridges
57.7%
Good
6.9%
Poor
6.9%
Structurally Deficient

Condition Distribution

Good
57.7% (75)
Fair
30% (39)
Poor
6.9% (9)
SD
6.9% (9)

All Bridges (130)

GHENT RD/FAU 9310

Good

Over: PALMER CREEK

COLUMBIA, Monroe, IL

Built 1991 Load: 32.4 t ADT: 1,550

PALMER RD/MSS 1002

Good

Over: PALMER CREEK

COLUMBIA, Monroe, IL

Built 1992 Load: 32.4 t ADT: 4,800

OLD IL 3 (GHENT RD

Good

Over: HILL LAKE CREEK

2.3 MI S OF DUPO, Monroe, IL

Built 2008 Load: 32.4 t ADT: 3,000

I-255 & Ramps E &

Good

Over: Hill Creek

2.1 mi E of JB Brdge, Monroe, IL

Built 1982 Load: 32.4 t ADT: 12,500

TR 28

Good

Over: FOUNTAIN CREEK

3.5 MI NE VALMEYER, Monroe, IL

Built 1978 Load: 32.4 t ADT: 175

TR32 IVY RD

Good

Over: DRAINAGE DITCH

SEC.28 RD.DISTRICT 8, Monroe, IL

Built 1978 Load: 32.4 t ADT: 50

TR 127 MM ROAD

Good

Over: HORSE CREEK

5.5 MI NE RENAULT, Monroe, IL

Built 1979 Load: 32.4 t ADT: 325

LL ROAD/TR121

Good

Over: RICHLAND CREEK

5 MI. SE OF HECKER, Monroe, IL

Built 1981 Load: 32.4 t ADT: 250

FAS 1857

Good

Over: MAEYSTOWN CREEK

1.5 M SW O MAEYSTOWN, Monroe, IL

Built 1980 Load: 32.4 t ADT: 325

J-ROAD TR-102

Good

Over: ROCKHOUSE CREEK

ROAD DIST.NO. 3, Monroe, IL

Built 1982 Load: 32.4 t ADT: 375

TR 22

Good

Over: FOUNTAIN CREEK

ROAD DIST.9 SEC.28, Monroe, IL

Built 1983 Load: 32.4 t ADT: 75

FAS 1857/CH 6

Good

Over: LITTLE CARR CREEK

1.5M S OF COLUMBIA, Monroe, IL

Built 1984 Load: 32.4 t ADT: 3,600

TR 23

Good

Over: LITTLE CARR CREEK

RD DIST 5, Monroe, IL

Built 1984 Load: 32.4 t ADT: 250

TR 20

Good

Over: VALMEYER DRAINAGE DT

ROAD DIST 10, Monroe, IL

Built 1983 Load: 32.4 t ADT: 50

KASKAKIA RD. TR149

Good

Over: FULTS DRAINAGE DITCH

ROAD DIST NO 8, Monroe, IL

Built 1983 Load: 32.4 t ADT: 100

KK RDTR105

Good

Over: HARRISON-VILLE DRDIS

SEC34 RD DIST10, Monroe, IL

Built 1985 Load: 32.4 t ADT: 25

TR 52 D RD

Good

Over: BOND CR

ROAD DIST NO 9, Monroe, IL

Built 1986 Load: 32.4 t ADT: 200

FAS 1857

Good

Over: TRIB TO FULTS CREEK

SEC 36 CH.3, Monroe, IL

Built 1987 Load: 32.4 t ADT: 200

TR 47

Good

Over: BOND CREEK

4.5 MI NW WATERLOO, Monroe, IL

Built 1991 Load: 32.4 t ADT: 475

TR 66A GILMORE LK

Good

Over: TRIB PRAIRE DU LONG

SECT.5 ROAD DIST. 2, Monroe, IL

Built 1989 Load: 32.4 t ADT: 275

TR 142 OBST RD.

Good

Over: BLACK CREEK TRIB

6 MI. SE HECKER, Monroe, IL

Built 1989 Load: 32.4 t ADT: 150

TR 32

Good

Over: MAEYSTOWN CK

1MI SW CHALFIN BR., Monroe, IL

Built 1990 Load: 32.4 t ADT: 10

TR 82

Good

Over: KOPP CREEK

3 MI.E WATERLOO, Monroe, IL

Built 1991 Load: 32.4 t ADT: 75

TR 134

Good

Over: ROCKY BRANCH TRIB

7.5 MI SE WATERLOO, Monroe, IL

Built 1991 Load: 32.4 t ADT: 100

TR 91 KK ROAD

Good

Over: FOUNTAIN CREEK TRIB

3.5M SE OF WATERLOO, Monroe, IL

Built 1994 Load: 32.4 t ADT: 250

TR 95 HARRIS RD

Good

Over: HARRISONVILLE DITCH

ROAD DISTRICT 10, Monroe, IL

Built 1994 Load: 32.4 t ADT: 10

TR 115/LL ROAD

Good

Over: BRADLEY BRANCH

7MI SE OF WATERLOO, Monroe, IL

Built 1995 Load: 32.4 t ADT: 150

TR 140

Good

Over: BLACK CREEK TRIB

1MI N OF RED BUD, Monroe, IL

Built 1995 Load: 32.4 t ADT: 200

TR 71 KONARCIK RD

Good

Over: WALTERS CREEK

1.5 MI. E. WATERLOOO, Monroe, IL

Built 1996 Load: 32.4 t ADT: 200

TR 69/TROUT CAMP R

Good

Over: BOND CREEK

2 MI NE VALMEYER, Monroe, IL

Built 1996 Load: 32.4 t ADT: 250

TR 66 GILMORE LKE

Good

Over: PRAIRIE DU LONG CRK

2.5MI NE OF WATERLOO, Monroe, IL

Built 1997 Load: 32.4 t ADT: 275

TR 147 FAUST ROAD

Good

Over: DRY FORK CREEK

3MI NE OF RENAULT, Monroe, IL

Built 1998 Load: 32.4 t ADT: 125

GILMORE LAKE RDTR5

Good

Over: GERHARDT CREEK

RD DIST #2, Monroe, IL

Built 2006 Load: 32.4 t ADT: 375

TR 107 KK ROAD

Good

Over: RYAN CREEK

3 MI. SE VALMEYER, Monroe, IL

Built 1996 Load: 32.4 t ADT: 175

FAS 1857

Good

Over: TRIB TO MOREDOCK LK

VALMEYER, Monroe, IL

Built 1996 Load: 32.4 t ADT: 75

TR 38 STRINGTOWN R

Good

Over: MORRISON HOLLOW CRK

1.5MI SW OF FULTS, Monroe, IL

Built 1998 Load: 32.4 t ADT: 75

TR 165 VV ROAD

Good

Over: PAINT CREEK

.5MI EAST OF AMES, Monroe, IL

Built 2001 Load: 32.4 t ADT: 100

FAS 855

Good

Over: MAEYSTOWN CK. TRIB

.5MI N MAEYSTOWN, Monroe, IL

Built 2003 Load: 32.4 t ADT: 350

TR 85 NIKE RD

Good

Over: RICHLAND CR. TRIB.

1.5MI E OF HECKER, Monroe, IL

Built 2001 Load: 32.4 t ADT: 325

FAS 850

Good

Over: TRIB TO GERHART CR.

.1MI EAST WATERLOO, Monroe, IL

Built 2004 Load: 32.4 t ADT: 4,350

FAS 1857

Good

Over: MORRISON HOLLOW CK

1 MI NW FULTS, Monroe, IL

Built 2003 Load: 32.4 t ADT: 300

TR 51 GILMORE LK R

Good

Over: TRIB TO GERHARDT CK

3 MI E WATERLOO, Monroe, IL

Built 2002 Load: 32.4 t ADT: 250

TR 165/VV ROAD

Good

Over: PAINTCREEK TRIB

1MI EAST OF AMES, Monroe, IL

Built 2003 Load: 32.4 t ADT: 100

STEFFEN RD TR 40

Good

Over: MAEYSTOWN CREEK

2.5M WEST OF FULTS, Monroe, IL

Built 2005 Load: 32.4 t ADT: 10

TR 30A GARLEB RD

Good

Over: LONG SLASH CREEK

2MI WEST VALMEYER, Monroe, IL

Built 2004 Load: 32.4 t ADT: 25

FAS 1857

Good

Over: MONROE CREEK

2.7MI S VALMEYER, Monroe, IL

Built 2007 Load: 32.4 t ADT: 300

FAS 1857

Good

Over: FOUNTAIN CREEK

4M S OF COLUMBIA, Monroe, IL

Built 2008 Load: 32.4 t ADT: 2,550

CH5 FAS857

Good

Over: PAINT CREEK

.8 M S OF AMES, Monroe, IL

Built 2008 Load: 32.4 t ADT: 475

STRINGTOWN RD TR 3

Good

Over: FULTS CREEK

2MI SO OF FULTS, Monroe, IL

Built 2007 Load: 32.4 t ADT: 75

JJ ROAD/TR 77

Good

Over: FOUNTAIN CREEK

ROAD DISTRICT 7, Monroe, IL

Built 2009 Load: 32.4 t ADT: 100

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial