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Fas 515 Base Line over Stream

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

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

Fas 515 Base Line over Stream in Ford 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 6 (satisfactory condition) on the 0-9 scale.
It was built in 2007, making it 18 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 141 of the 302 inventoried bridges in Ford County rated fair (46.7%); 24 (7.9%) 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	Prestressed concrete multiple box beam
Length	about 54 ft
Location	2620E 00N
NBI structure number	027344000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Fai 57 over Stream	1968	17,600	Fair
Fai 57 Sbl over Big Four Ditch	1968	10,550	Fair
Fai 57 Nbl over Big Four Ditch	1968	10,550	Poor
Il 9/FAP 697 over Il Cent. RR	2001	5,750	Fair
Ill 9 over Fai 57	1969	5,050	Fair
Ill 47 over Drummer Creek	1998	3,850	Good