Iroquois County, IL
565 public highway bridges
Iroquois County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Iroquois County, Illinois contains 565 public highway bridges. Roughly 46% are rated “Good,” 35.8% “Fair,” and 13.3% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (565)
FAS 334 (CH 9)
GoodOver: TRIB. TO LOUIS CREEK
0.5 MI W BUCKLEY, Iroquois, IL
TR 353
GoodOver: FOUNTAIN CR
1 MI E OF CH 6, Iroquois, IL
FAS 1324/OLD US 45
GoodOver: TRIB OF LANGAN CREEK
1.2 MI S OF CHEBANSE, Iroquois, IL
FAS 323 ONARGA RD
GoodOver: SPRING CREEK
5.62 MI W OF ILL 49, Iroquois, IL
TR 251
GoodOver: SUGAR CREEK
2 MI S OF WOODLAND, Iroquois, IL
FAS 1322 CH37
GoodOver: TR1 B OF TRAIL CR
0.34 MI E US 52, Iroquois, IL
US 52
GoodOver: DRAINAGE DITCH
0.43 M N US 24, Iroquois, IL
IL 116 (FAP 681)
GoodOver: drainage ditch
2.15 MI W of I-57, Iroquois, IL
CH 15
GoodOver: Pike Creek
2 mi. S. of Donovan, Iroquois, IL
ILL 49
GoodOver: BR SHAVETAIL CRK
5.51 MI S JCT 49&24, Iroquois, IL
TR 9A
GoodOver: LITTLE BEAVER CREEK
1.5N 0.5W PAPINEAU, Iroquois, IL
US 45
GoodOver: LOUIS CREEK
1.68 MI N OF BUCKLEY, Iroquois, IL
US 45
GoodOver: DRAINAGE DITCH
0.39 MI S OF US 24, Iroquois, IL
US 45
GoodOver: Prairie Creek
2.35 M N of US 24, Iroquois, IL
TR 51
GoodOver: BEAVER DITCH NO. 1
5.3 MI E MARTINTON, Iroquois, IL
TR 5
GoodOver: DRAINAGE DITCH
4.75 W,3.5 N CLIFTON, Iroquois, IL
TR 68
GoodOver: PRAIRIE CR
3.2MI N GILMAN, Iroquois, IL
Stockland Road
GoodOver: SUGAR CREEK
9.66 M S OF US 24, Iroquois, IL
IL 1
GoodOver: Pike Creek
0.15 M N of US 52, Iroquois, IL
US 45/52
GoodOver: Trib to Langan Creek
3.51 M N of US 52, Iroquois, IL
IL 116
GoodOver: LANGAN CREEK
3.97M E FORD C LN, Iroquois, IL
DANFORTH RD
GoodOver: PRAIRIE CREEK
3.74 M W OF IL 49, Iroquois, IL
IL 1
GoodOver: Gay Creek
0.16M S ofWellington, Iroquois, IL
TR 2 D
GoodOver: Sheldon Ditch #1
0.9 Mi S of CR1400S, Iroquois, IL
IL 1
GoodOver: IROQUOIS RIVER
1.0 MI N of US 24, Iroquois, IL
US 52
GoodOver: MARTINTON DR DITCH
3.27 MI E OF ILL 1, Iroquois, IL
IL 1
GoodOver: Gay Creek
3.2 M N of IL 9, Iroquois, IL
TR 121
GoodOver: Garfield Creek
1mi S, .5mi W of Iroquois, Iroquois, IL
FAS 334 CH-9
GoodOver: SUGAR CREEK
1.42 MI W OF ILL 1, Iroquois, IL
US 45 FAP 681
GoodOver: PRAIRIE CREEK
1.5 mi W/IL 49, Iroquois, IL
CH 42
GoodOver: Trib. to Prairie Creek
1.5miS/1.5miE of Ashkum, Iroquois, IL
TR 74
GoodOver: SPRING CR
1.5 MI SE ONARGA, Iroquois, IL
US 45 FAS 338
GoodOver: SPRING CREEK
10.58 MI S OF IL 54, Iroquois, IL
US 45/FAS 317
GoodOver: PRAIRIE CREEK
0.85 MI N OF US 24, Iroquois, IL
IL 1/FAP 332A
GoodOver: COON CREEK
5.35 M S OF US 24, Iroquois, IL
IL 49 FAP 840
GoodOver: PIDGEON CREEK
16.12 MI S OF US 24, Iroquois, IL
IL 54
GoodOver: SPRING CREEK
7.6 M N OF ILL 115, Iroquois, IL
IL 116 FAP 681
GoodOver: BR OF LANGAN CREEK
3.81 MI W OF I-57, Iroquois, IL
I-57 SB
GoodOver: SPRING CREEK
2.5 MI S BUCKLEY INT, Iroquois, IL
I-57 NB
GoodOver: SPRING CREEK
2.5MI S BUCKLEY INTR, Iroquois, IL
TR 293
PoorOver: LITTLE MUD CREEK
3MI N 2.75 W CISSNA, Iroquois, IL
TR 126
PoorOver: MUD CR
0.5 W CISSNA P, Iroquois, IL
TR 108
PoorOver: LANGAN CREEK
1.5N O.SW OF CLIFTON, Iroquois, IL
TR 420A
PoorOver: TRIB TO IROQUOIS RV
N. EDGE OF IROQUOIS, Iroquois, IL
TR 104
PoorOver: TRIB TO SPRING CR
2 MI N US 45&24-2 MI, Iroquois, IL
TR 192
PoorOver: WHISKEY CR
1 MI NE CLAYTONVILLE, Iroquois, IL
TR 320
PoorOver: MARTINTON DITCH #3
2.5MI E MARTINTON, Iroquois, IL
TR 242
PoorOver: MUD CR
5 MI SW MILFORD, Iroquois, IL
TR 2 D
PoorOver: TRIB TO SUGAR CR
.5 MI N CH 9, Iroquois, IL
TR-290
PoorOver: Martinton Ditch #3
1MI E MARTINTON, Iroquois, IL
Read our methodology - how this data is sourced, computed, and verified.
Related
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