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Tr 15 over Clear Creek

Cumberland County, Illinois · rated Good in the 2025 National Bridge Inventory

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

Tr 15 over Clear Creek in Cumberland County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1989, making it 36 years old at the 2025 inventory.
It carries about 75 vehicles a day (traffic count year 2021).
Its listed owner is a town or township highway agency.
It is one of 91 of the 169 inventoried bridges in Cumberland County rated good (53.8%); 12 (7.1%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 93 ft
Location	1.5 Mi SE of Trilla
NBI structure number	018316400000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-70 over Crooked Creek	1969	23,100	Fair
I-70 (WB) over Range Creek	1970	11,750	Fair
I-70 (EB) over Range Creek	1970	11,750	Fair
I-70 (EB) over Fas 1657	1969	11,550	Fair
I-70 (WB) over Fas 1657	1969	11,550	Fair
I-70 (WB) over Muddy Creek	1968	11,550	Poor