SR 75 over I-74 Eb/wb

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

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

• SR 75 over I-74 Eb/wb in Boone 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 1963 and reconstructed in 1983, making it 62 years old at the 2025 inventory.
• It carries about 2,806 vehicles a day (traffic count year 2014).
• Its listed owner is the state highway agency.
• It is one of 162 of the 292 inventoried bridges in Boone County rated fair (55.5%); 12 (4.1%) 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 9 to 6, superstructure 9 to 8, substructure 7 to 6).
• Its most recent inspection on record is dated November 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 → (39.94238, -86.61972)

Component ratings

Bridge details

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

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