Glenn Highway over South Birchwood Uc - NB
Good Condition46 years old18,850 vehicles/day
Location
| State | Alaska |
| County | Anchorage |
| Location | Mile Point 16.0 |
| Carries | Glenn Highway |
| Crosses | South Birchwood Uc - NB |
| Coordinates | 61.36650, -149.53470 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 124.7 ft (38 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 38.7 ft (11.8 m) |
| Deck Area | 448.4 sq m |
| Main Spans | 1 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 18,850 (2020) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 3 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 1378 |