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Tilly Road over Branch of Tilly Ditch

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

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

Tilly Road over Branch of Tilly Ditch in Knox County, Indiana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1940 and reconstructed in 1997, making it 85 years old at the 2025 inventory.
It carries about 130 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 160 of the 290 inventoried bridges in Knox County rated fair (55.2%); 13 (4.5%) 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

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

Bridge	Built	Vehicles/day	Condition
US 41 NB over 2 City Streets CSX RR	1961	21,710	Good
US 41 SB over 2 City Streets CSX RR	1961	21,710	Good
US 41 NB (middle) over US 50 WB Ramp to US 41 S	1967	19,317	Good
Hart Street over US 41 Nb/sb	1967	17,173	Fair
US 41 NB over Snapp Creek	1963	15,500	Good
US 41 SB over Snapp Creek	1963	15,500	Good