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CR 640N over Br Middle Fork Clifty CR

Decatur County, Indiana · rated Good in the 2025 National Bridge Inventory

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

CR 640N over Br Middle Fork Clifty CR in Decatur County, Indiana, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1994, making it 31 years old at the 2025 inventory.
It carries about 430 vehicles a day (traffic count year 2017).
Its listed owner is the county highway agency.
It is one of 73 of the 220 inventoried bridges in Decatur County rated good (33.2%); 13 (5.9%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 27 ft
Location	00.30 W of CR 500 E
NBI structure number	1600037
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 421 over Muddy Fork Sand Creek	2008	13,901	Fair
SR 3 over I-74 Eb/wb	1962	13,680	Fair
I-74 Wbl over Clifty Creek	1962	11,344	Fair
I-74 EB over Flatrock River	1961	11,343	Fair
I-74 WB over Flatrock River	1961	11,343	Fair
I-74 Ebl over Mill Creek	1961	10,341	Good