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SR 511 over W Branch of Black River

Lorain County, Ohio · rated Good in the 2025 National Bridge Inventory

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

SR 511 over W Branch of Black River in Lorain County, Ohio, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 8 (very good condition) on the 0-9 scale.
It was built in 2018, making it 7 years old at the 2025 inventory.
It carries about 2,020 vehicles a day (traffic count year 2015).
Its listed owner is the state highway agency.
It is one of 204 of the 370 inventoried bridges in Lorain County rated good (55.1%); 22 (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 62 ft
Location	.54 Miles N of SR 162
NBI structure number	4710006
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Ir 90 over Powdermaker Ditch	1966	66,105	Fair
Ir 90 over Jungbluth Ditch	1970	54,944	Fair
Ir 480 over over Lear Nagle Th-55	1980	54,153	Good
Ir 480 over over Lor-10-0659	1980	54,153	Good
Ir 90 over over N/S RR	2022	54,000	Good
Ir 90 over over N/S RR	2022	54,000	Good