Wildermuth Road over Zorn Ditch
Shelby County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Wildermuth Road over Zorn Ditch in Shelby County, Ohio, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1977, making it 48 years old at the 2025 inventory.
- It carries about 351 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 202 of the 274 inventoried bridges in Shelby County rated good (73.7%); 5 (1.8%) 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 → (40.40261, -84.02584)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 25 ft |
| Location | .03 M.w. Tawawa Maplewood |
| NBI structure number | 7545681 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Shelby County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ir-75 over Great Miami River | 2005 | 46,838 | Good |
| Ir-75 over Tr 39 Kirkwood Road | 1960 | 23,419 | Fair |
| Ir-75 over Tr 39 Kirkwood Road | 1960 | 23,419 | Good |
| Ir-75 over Tr 135 Vandemark Road | 1960 | 23,419 | Good |
| Ir-75 over Tr 135 Vandemark Road | 1960 | 23,419 | Good |
| SR-47 over Ir 75 | 1961 | 22,694 | Good |
All bridges nearby: Shelby County, OH bridge conditions · every bridge in Shelby County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.