SR 18 over East Branch of Black Riv
Huron County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 18 over East Branch of Black Riv in Huron County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1933 and reconstructed in 1984, making it 92 years old at the 2025 inventory.
- It carries about 2,860 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 104 of the 311 inventoried bridges in Huron County rated fair (33.4%); 21 (6.8%) 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 March 2024, on a 12-month routine inspection cycle.
- 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.
View this bridge on a map → (41.1823, -82.37012)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 84 ft |
| Location | 2.3 Mi East of SR60 |
| NBI structure number | 3900487 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Huron County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Usr 250 over Rattlesnake Creek | 2011 | 14,942 | Good |
| Usr 250 over over Hur-20-1349 | 1968 | 11,427 | Good |
| Usr 20 over West Br Huron River | 1936 | 11,337 | Fair |
| Usr 224 over Marsh Run | 1983 | 9,030 | Fair |
| Usr 250 over Trib of Norwalk Creek | 1988 | 7,525 | Good |
| Usr 250 over Trib.of Norwalk Creek | 2004 | 7,525 | Good |
All bridges nearby: Huron County, OH bridge conditions · every bridge in Huron County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.