Grass Rd over Bauerdrain
Washtenaw County, Michigan · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Grass Rd over Bauerdrain in Washtenaw County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1961 and reconstructed in 1988, making it 64 years old at the 2025 inventory.
- It carries about 133 vehicles a day (traffic count year 2003).
- Its listed owner is the county highway agency.
- It is one of 47 of the 262 inventoried bridges in Washtenaw County rated poor (17.9%); 47 (17.9%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (42.16221, -83.85577)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Timber slab |
| Length | about 29 ft |
| Location | Saline Twp Sec 4 & 5 |
| NBI structure number | 000000000011046 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Washtenaw County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-94 over Huron River | 1971 | 102,776 | Fair |
| I-94 over Aa RR | 1954 | 78,348 | Fair |
| I-94 over Honey Creek | 2000 | 77,206 | Fair |
| US-23 over Horseshoe Lake Drain | 1956 | 66,750 | Fair |
| Gotfredson Road over M-14 | 1975 | 65,500 | Fair |
| M-14 & US-23 Br over Mdot RR Cor & Huron Rvr | 1956 | 59,888 | Fair |
All bridges nearby: Washtenaw County, MI bridge conditions · every bridge in Washtenaw County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.