Old SR 37 N over Muddy Fork

Monroe County, Indiana · rated Fair in the 2025 National Bridge Inventory

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

• Old SR 37 N over Muddy Fork in Monroe County, Indiana, 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 1986, making it 39 years old at the 2025 inventory.
• It carries about 2,268 vehicles a day (traffic count year 2014).
• Its listed owner is the county highway agency.
• It is one of 83 of the 234 inventoried bridges in Monroe County rated fair (35.5%); 9 (3.8%) are rated poor.
• Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
• It was rated good in the 2024 inventory and is now fair (deck 7 to 6, superstructure 7 to 6, substructure 7 to 6).
• Its most recent inspection on record is dated March 2024, on a 24-month routine inspection cycle.
• 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.

View this bridge on a map → (39.23385, -86.50456)

Component ratings

Bridge details

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

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