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Ch 18 over Robinson Creek

Shelby County, Illinois · rated Fair in the 2025 National Bridge Inventory

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

Ch 18 over Robinson Creek in Shelby County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1937, making it 88 years old at the 2025 inventory.
It carries about 225 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 125 of the 335 inventoried bridges in Shelby County rated fair (37.3%); 26 (7.8%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 97 ft
Location	1 Mi S Westervelt
NBI structure number	087300900000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Fap 325 (il 16) over Swafford Branch	1991	8,200	Fair
Fap 325(IL 16) over Kaskaskia River	1975	6,500	Fair
Fap 325(ILL 16) over Robinson Creek	1967	5,200	Fair
Fap 325(ILL 16) over Stream	1924	4,800	Fair
US 51 (fap 322) over Long Grove CR.	2002	4,800	Fair
US 51 (fap 322) over Long Grove CR.	2002	4,800	Fair