I-71 over Mud Run
Madison County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-71 over Mud Run in Madison County, Ohio, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1964, making it 61 years old at the 2025 inventory.
- It carries about 18,136 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 132 of the 200 inventoried bridges in Madison County rated good (66.0%); 17 (8.5%) 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.
View this bridge on a map → (39.73373, -83.36057)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 9 | Excellent condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 92 ft |
| Location | 0.71 Mi N of SR323 |
| NBI structure number | 4903188 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Madison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-70 over Big Darby Creek | 1970 | 32,533 | Good |
| I-70 over Big Darby Creek | 1970 | 32,533 | Good |
| I-70 over Little Darby Creek | 1969 | 29,528 | Good |
| I-70 over Little Darby Creek | 1969 | 29,528 | Good |
| I-70 over Deer Creek | 1969 | 24,059 | Good |
| I-70 EB over Deer Creek | 1969 | 24,059 | Good |
All bridges nearby: Madison County, OH bridge conditions · every bridge in Madison County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.