Glenn Highway over South Birchwood Uc - SB
FairAnchorage Municipality, Alaska · Mile Point 16.0 · Structure no. 1869
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 125 ft
- 1 main span
- Daily traffic
- 18,850
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Glenn Highway over South Birchwood Uc - SB is a prestressed concrete tee beam carrying Glenn Highway over South Birchwood Uc - SB in Anchorage Municipality, Alaska. It was built in 1980, so it is 45 years old, older than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 18,850 vehicles a day, roughly 17% of them trucks, projected to reach 21,900 by 2039. The structure is 125 ft (38 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Glenn Highway over South Birchwood Uc - SB built?
It was built in 1980, making it 45 years old in 2025.
What condition is Glenn Highway over South Birchwood Uc - SB in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Glenn Highway over South Birchwood Uc - SB carry?
About 18,850 vehicles per day (2020 count), of which roughly 17% are trucks.
How long is Glenn Highway over South Birchwood Uc - SB?
The structure is 125 ft (38 m) long with a longest span of 120 ft (36.6 m) and a deck 39 ft wide.
Who owns Glenn Highway over South Birchwood Uc - SB?
It is owned by the State Highway Agency.