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Old US 51 (fas 179 over Crooked Creek

Marion County, Illinois · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Old US 51 (fas 179 over Crooked Creek in Marion County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 3 (serious condition) on the 0-9 scale.
It was built in 1954, making it 71 years old at the 2025 inventory.
It carries about 1,450 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 22 of the 294 inventoried bridges in Marion County rated poor (7.5%); 22 (7.5%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 228 ft
Location	.3 Mi N Central City
NBI structure number	061000700000000
Condition class	Poor

Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.

Bridge	Built	Vehicles/day	Condition
Fai-57 over Raccoon Creek	1966	21,000	Good
Fai-57 over Br E Fork Kaskaskia	1970	18,100	Good
Fai-57 over S Trib E Br Kask Rvr	1969	18,100	Good
Fai-57 over N Trib E Br Kask Rvr	1969	18,100	Good
US 50 over Vermillion Creek	1994	10,300	Good
Fai-57 NB over Crooked Creek	1968	9,650	Poor