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CR 750N over Mud Creek

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

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

CR 750N over Mud Creek 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 1986, making it 39 years old at the 2025 inventory.
It carries about 120 vehicles a day (traffic count year 2017).
Its listed owner is the county 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.
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 45 ft
Location	00.05 E of CR 500 E
NBI structure number	0600032
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-65 over Prairie Creek	1948	73,132	Fair
CR 100 Ehall-baker over I-65 Sb/nb	1958	73,132	Fair
I-65 over Prairie Creek	2010	73,132	Good
I-465 WB over Zionsville Road	1967	57,399	Fair
I-65 NB over Prairie Creek Trail	2014	57,066	Fair
I-65 SB over Prairie Creek Trail	2014	57,066	Fair