Md 946 over US 40 Alt
Garrett County, Maryland · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Md 946 over US 40 Alt in Garrett County, Maryland, 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 1956 and reconstructed in 1987, making it 69 years old at the 2025 inventory.
- It carries about 760 vehicles a day (traffic count year 2009).
- Its listed owner is the state highway agency.
- It is one of 96 of the 140 inventoried bridges in Garrett County rated fair (68.6%); 16 (11.4%) 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 July 2023, on a 24-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 → (39.68319, -78.96719)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 173 ft |
| Location | 0.46 Mile South of Md 546 |
| NBI structure number | 100000110026010 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Maryland department of transportation.
Busiest bridges in Garrett County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 68/US 219 EB over Casselman River | 1975 | 17,770 | Fair |
| Is 68/US 219 WB over Casselman River | 1975 | 17,770 | Fair |
| Is 68/US 219 EB over Shade Hollow Road | 1975 | 17,530 | Good |
| Is 68/US 219 WB over Shade Hollow Road | 1975 | 17,530 | Good |
| Is 68/US 219 over Big Shade Run | 1975 | 16,541 | Fair |
| Is 68 EB over Sand Spring Rd | 1975 | 15,710 | Fair |
All bridges nearby: Garrett County, MD bridge conditions · every bridge in Garrett County · Maryland bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.