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Bluffton Rd over St Marys River

Allen County, Indiana · rated Poor in the 2025 National Bridge Inventory

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

Bluffton Rd over St Marys River in Allen County, Indiana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
It was built in 1986, making it 39 years old at the 2025 inventory.
It carries about 23,300 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 45 of the 615 inventoried bridges in Allen County rated poor (7.3%); 45 (7.3%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Continuous prestressed concrete stringer or multi-beam girder
Length	about 331 ft
Location	00.10 W of Broadway Blvd
NBI structure number	0200291
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I-69 over Durnell Ditch	1961	59,380	Fair
I-469 over Martin Ditch	1995	44,507	Good
I-469 over Swift Ditch	1995	44,507	Fair
W Jefferson Blvd over Moorman Drain	1948	38,000	Fair
W Jefferson Blvd over Natural Drain	1930	38,000	Fair
I-69 over Graham Mccullough Dit #4	1964	36,360	Good