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Tr 113 over E Fork Otter Creek

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

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

Tr 113 over E Fork Otter Creek in Macoupin 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 1984, making it 41 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2021).
Its listed owner is a town or township highway agency.
It is one of 111 of the 240 inventoried bridges in Macoupin County rated fair (46.2%); 40 (16.7%) 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 131 ft
Location	4 Mi W of Nilwood
NBI structure number	059328100000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Fai 55 SB over Tr 439	1973	15,200	Fair
Fai 55 NB over Tr 439	1973	15,200	Fair
Ill 108 over Drainage Ditch	1933	6,950	Fair
Ill 4 over East Fork Creek	1957	4,800	Fair
Il 111 over Little Piasa Creek	1929	4,550	Fair
Il 111 over S Br Little Piasa CR	1929	4,550	Fair