State Route 643 over Mill Creek
Coshocton County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- State Route 643 over Mill Creek in Coshocton County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 978 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 79 of the 185 inventoried bridges in Coshocton County rated fair (42.7%); 15 (8.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 8 to 7.
- Its most recent inspection on record is dated May 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 → (40.36038, -81.84763)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 8 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 113 ft |
| Location | 2.40 Mile North of Beg Rt |
| NBI structure number | 1602713 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 12 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 Coshocton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 541 over Muskingum River | 1954 | 14,672 | Fair |
| SR 541 over SR16 | 2019 | 13,030 | Good |
| SR 16 & SR 83 over Copperas Run | 1952 | 10,069 | Fair |
| US 36 & SR 83 over Walhonding River | 1955 | 9,831 | Fair |
| County Road 1A over Tuscarawas River | 2003 | 7,257 | Fair |
| SR 83 over Muskingum River | 1972 | 6,744 | Good |
All bridges nearby: Coshocton County, OH bridge conditions · every bridge in Coshocton County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.