Is 68 over US 40 Alt/md 639
Allegany County, Maryland · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Is 68 over US 40 Alt/md 639 in Allegany County, Maryland, 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 2019, making it 6 years old at the 2025 inventory.
- It carries about 27,462 vehicles a day (traffic count year 2009).
- Its listed owner is the state highway agency.
- It is one of 90 of the 244 inventoried bridges in Allegany County rated good (36.9%); 13 (5.3%) 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 February 2024, on a 24-month routine inspection cycle.
- 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 → (39.65671, -78.74823)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 149 ft |
| Location | 0.92 Mile West of Md 952 |
| NBI structure number | 100000010093010 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2024 |
| 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 Allegany County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 68 over Wills Creek CSX RR Mun | 1968 | 53,950 | Fair |
| Is 68 over US 220 | 1968 | 47,770 | Fair |
| Is 68 over Kelly Blvd CSX Trans. | 1968 | 46,611 | Fair |
| Is 68 over Patterson Avenue | 1968 | 46,611 | Fair |
| Is 68 over Md 658 | 1968 | 38,810 | Fair |
| Marion Street over I-68 | 1968 | 30,530 | Fair |
All bridges nearby: Allegany County, MD bridge conditions · every bridge in Allegany County · Maryland bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.