Cass County, IL
77 public highway bridges
Cass County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Cass County, Illinois contains 77 public highway bridges. Roughly 29.9% are rated “Good,” 50.6% “Fair,” and 19.5% “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 (77)
IL 78
GoodOver: SANGAMON RIVER
.5 N CHANDLERVILLE, Cass, IL
TR 152
GoodOver: Conover Ck
0.65 mi S TR 151, Cass, IL
FAS 575
GoodOver: MIDDLE CREEK
4.5 M N NEWMANSVILLE, Cass, IL
CH 9 (FAS 580)
GoodOver: Mud Creek
1 MI W ARENZVILLE, Cass, IL
IL 78
GoodOver: LITTLE JOBS CREEK
4.3M N IL 125, Cass, IL
IL 78
GoodOver: PANTHER CREEK OVRFLW
SW SIDE CHANLERVILLE, Cass, IL
TR 7
GoodOver: Jobs Creek
3 MI W CHANDLERVILLE, Cass, IL
IL 78
GoodOver: Panther Creek
SW Chandlerville CL, Cass, IL
IL 125
GoodOver: TRIB TO LOST CREEK
2.2 M E BLUFFSRD, Cass, IL
IL 125
GoodOver: TRIB TO LOST CREEK
3.5 M E BLUFFS RD, Cass, IL
IL 125
GoodOver: LOST CREEK
BLUFF SPRG/5M E US67, Cass, IL
TR 32
GoodOver: PHELPS DITCH
3 M NE BEARDSTOWN, Cass, IL
TR 143
PoorOver: LITTLE INDIAN CR.
2 MI SW PHILADELPHIA, Cass, IL
TR 124
PoorOver: LITTLE INDIAN
3 MI SW PHILADELPHIA, Cass, IL
TR 224
PoorOver: MIDDLE CRK.
4 MI N NEWMANSVILLE, Cass, IL
FAS 1577
PoorOver: COX CREEK
1.5 MI WSW NEWMANSV., Cass, IL
FAS577
PoorOver: LOST CREEK
3 MI E BEARDSTOWN, Cass, IL
TR 62
PoorOver: LOST CREEK
1.5 MI E BLUFF SPR., Cass, IL
FAU 7779
PoorOver: CLEAR CREEK
3 MI SE BEARDSTOWN, Cass, IL
TR 26
PoorOver: INDIAN CREEK
2.5 MI NW ARENZVILLE, Cass, IL
US 67 / IL 100
PoorOver: ILLINOIS RIVER
W EDGE BEARDSTOWN, Cass, IL
TR 2
PoorOver: INDIAN CREEK
7MI W HAGENER, Cass, IL
TR 32
PoorOver: LOST CREEK
2 MI NE BEARDSTOWN, Cass, IL
FAS 579
PoorOver: PRAIRIE CREEK
1 MI S HAGENER, Cass, IL
FAS 573
PoorOver: PANTHER CREEK
0.2 MI E OF ILL 78, Cass, IL
TR 68
PoorOver: PRAIRIE CREEK
4MI NE ARENZVILLE, Cass, IL
TR 146
PoorOver: PANTHER CREEK
1.5MI SE CHANDLERVIL, Cass, IL
Read our methodology - how this data is sourced, computed, and verified.
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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.