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)
COUNTY HIGHWAY 41
FairOver: COON CREEK
6.30 MI S OF US-24, Iroquois, IL
FAS 1324/OLD US 45
FairOver: LANGAN CREEK
2.3 MI S OF CHEBANSE, Iroquois, IL
US 24
FairOver: SPRING CREEK
4.1 MILES E OF US 45, Iroquois, IL
US 52
FairOver: IROQUOIS RIVER
1.73 MI E OF ILL 49, Iroquois, IL
US 24
FairOver: PRAIRIE CREEK
4.52 MI W OF I-57, Iroquois, IL
TR 172A
FairOver: SHAVETAIL CR
6 MI S. CRESCENT CIT, Iroquois, IL
TR 369A
FairOver: TRIB TO PIGEON CR
1.2MI W IL49, Iroquois, IL
IL 1/FAP 332A
FairOver: SUGAR CREEK
S EDGE OF MILFORD, Iroquois, IL
TR 369A
FairOver: PIGEON CR
1.5MI E CH 46, Iroquois, IL
BEAVERVILLE RD CH
FairOver: PIKE CREEK
1.52 MI N OF US 52, Iroquois, IL
ILL 49
FairOver: PIGEON CR
4.4 MI N ILL 9, Iroquois, IL
TR 283A
FairOver: LOUIS CREEK
2N BUCKLEY OFF US45E, Iroquois, IL
ILL 1
FairOver: N MARTINTON DT NO 2
2.20 MI N OF US 52, Iroquois, IL
BEAVERVILLE RD CH
FairOver: BEAVER DITCH
2.40 MI N OF US 52, Iroquois, IL
TR 250
FairOver: PIKE CREEK
0.5S,1.5W MARTINTON, Iroquois, IL
ILL 54
FairOver: SPRING CREEK
1.12 MI N OF THAWVIL, Iroquois, IL
US 24
FairOver: RAYMOND CREEK
2.65 MI E OF ILL 1, Iroquois, IL
IL 1/FAP 332A
FairOver: SUGAR CREEK TRIB
3.18 M N OF CH 10, Iroquois, IL
FAI-57 NB
FairOver: LANGAN CREEK
2.22 MI S FAS 1322, Iroquois, IL
US 24
FairOver: SUGAR CR
W EDGE OF WATSEKA, Iroquois, IL
IL 1/FAP 332A
FairOver: Trib to Sugar Creek
1.85 Mi S of US 24, Iroquois, IL
I-57
FairOver: Dranage Ditch
7.15 M. S. of IL 116, Iroquois, IL
ILL 49
FairOver: LITTLE MUD CREEK
12.62 M S US 24, Iroquois, IL
ILL 49
FairOver: SPRING CREEK
2.47 MI N OF US 24, Iroquois, IL
I-57 NB & SB
FairOver: Prairie Creek
4.14 M. S. of IL 116, Iroquois, IL
I-57 SB
FairOver: LANGAN CREEK
2.23 MI S CHEBANSE I, Iroquois, IL
U.S. 45
FairOver: SPRING CREEK
0.25 M S DEL RAY RD, Iroquois, IL
IL 1/FAP 332A
FairOver: SUGAR CREEK TRIB
.71 M N OF CH10, Iroquois, IL
I-57
FairOver: Dranage Ditch
5.10 M. S. of IL 116, Iroquois, IL
ILL 1
FairOver: BIG BEAVER CREEK
.76 MI N PAPINEAU RD, Iroquois, IL
FAS 1336 CH 44
GoodOver: DRAINAGE DITCH
3 MI E .5M S BUCKLEY, Iroquois, IL
CH44 FAS1336
GoodOver: SPRING CREEK
.7MI E US45 ON CH44, Iroquois, IL
FAS 321 CH 4
GoodOver: IROQUOIS RIVER
3 MI E OF ILL 45, Iroquois, IL
FAS 316 (CH 23)
GoodOver: LANGAN CR
2 MI N IL 116, Iroquois, IL
CH 47
GoodOver: SPRING CREEK
.35 MI E OF US 45, Iroquois, IL
FAS 334 CH 9
GoodOver: TRIB SUGARCREEK
.5N STOCKLAND W 1.75, Iroquois, IL
FAS 329 CH 10 SA 1
GoodOver: FOUNTAIN CREEK
3.68 MI W OLD ILL 1, Iroquois, IL
FAS 323
GoodOver: SUGAR CREEK
2.7 Mi. E. of Ill. 1, Iroquois, IL
FAS 323 ONARGA RD
GoodOver: SHAVETAIL CREEK
0.19 MI W OF ILL 49, Iroquois, IL
TR 308
GoodOver: TRIB. TO MUD CR
1.5 7I SE MILFORD, Iroquois, IL
TR 309
GoodOver: TRIB TO MUD CR
2 7I. SE MILFORD, Iroquois, IL
CH 23
GoodOver: TRIB LANGAN CREEK
35MI W CLIFTON, Iroquois, IL
TR 353
GoodOver: WHISKEY CREEK
2.5E 1.5S CISNA PARK, Iroquois, IL
TR 178
GoodOver: STREAM
1.25 MI N L'ERABLE, Iroquois, IL
FAS1335 CH42
GoodOver: TRIB LITTLE MUD CR
1.7MI N JCT CH 42+44, Iroquois, IL
TR 422
GoodOver: HOOPER BR
1.5 MI N CH 3, Iroquois, IL
TR 292
GoodOver: BEAVER CR
.5 MI N PAPINEAU, Iroquois, IL
TR 361A
GoodOver: GAY CREEK
1 MI W ILL RT 1, Iroquois, IL
FAS 337
GoodOver: BR OF SPRING CREEK
.41 MILES E FAI 57, Iroquois, IL
US 45 FAS 317
GoodOver: PRAIRIE CREEK
3.34 MI N OF US 24, Iroquois, IL
Read our methodology - how this data is sourced, computed, and verified.
Related
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.