SR 18 over East Br of Black River
Lorain County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 18 over East Br of Black River in Lorain County, Ohio, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1932 and reconstructed in 1988, making it 93 years old at the 2025 inventory.
- It carries about 4,883 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.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 2023, on a 24-month routine inspection cycle.
- 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.
View this bridge on a map → (41.16846, -82.10496)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete multiple box beam |
| Length | about 129 ft |
| Location | .86 Miles East of SR 301 |
| NBI structure number | 4701836 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Lorain County
| 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 |
All bridges nearby: Lorain County, OH bridge conditions · every bridge in Lorain County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.