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Tr 47 over Otter Crk.

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

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

Tr 47 over Otter Crk. 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 5 (fair condition) on the 0-9 scale.
It was built in 1900 and reconstructed in 1975, making it 125 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 52 ft
Location	1.5 S 5.5 W Virden
NBI structure number	059306500000000
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