US Bridges

Eagle River Loop over Driftwood Bay Dr. Uc

Good

Anchorage Municipality, Alaska · Mile Point 2.4 · Structure no. 1845

Built
1992
33 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
113 ft
1 main span
Daily traffic
4,700
2020 count
Owner
State
State Highway Agency

About this bridge

Eagle River Loop over Driftwood Bay Dr. Uc is a prestressed concrete tee beam carrying Eagle River Loop over Driftwood Bay Dr. Uc in Anchorage Municipality, Alaska. It was built in 1992, so it is 33 years old, younger than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,700 vehicles a day, roughly 10% of them trucks, projected to reach 5,860 by 2039. The structure is 113 ft (34.3 m) long and 96 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesEagle River Loop
CrossesDriftwood Bay Dr. Uc
LocationMile Point 2.4
RouteState Highway FU551
StateAlaska
Coordinates61.3032, -149.53908
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating48.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length113 ft (34.3 m)
Longest span111 ft (33.8 m)
Deck width96 ft (29.3 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2020)
Projected traffic5,860 by 2039
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Eagle River Loop over Driftwood Bay Dr. Uc built?

It was built in 1992, making it 33 years old in 2025.

What condition is Eagle River Loop over Driftwood Bay Dr. Uc in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Eagle River Loop over Driftwood Bay Dr. Uc carry?

About 4,700 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Eagle River Loop over Driftwood Bay Dr. Uc?

The structure is 113 ft (34.3 m) long with a longest span of 111 ft (33.8 m) and a deck 96 ft wide.

Who owns Eagle River Loop over Driftwood Bay Dr. Uc?

It is owned by the State Highway Agency.