US Bridges

Vandenberg Ave over Alaska Railroad

Good

Anchorage Municipality, Alaska · 0.1 Miles South of Inters · Structure no. AFAKFXSB85313

Built
2002
23 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
10,000
2021 count
Owner
Federal
Air Force

About this bridge

Vandenberg Ave over Alaska Railroad is a prestressed concrete box beam or girders - multiple carrying Vandenberg Ave over Alaska Railroad in Anchorage Municipality, Alaska. It was built in 2002, so it is 23 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 10,000 vehicles a day, projected to reach 12,000 by 2041. The structure is 77 ft (23.6 m) long and 76 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesVandenberg Ave
CrossesAlaska Railroad
Location0.1 Miles South of Inters
StateAlaska
Coordinates61.23906, -149.77847
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length77 ft (23.6 m)
Longest span77 ft (23.6 m)
Deck width76 ft (23.2 m)
Roadway width73 ft (22.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2021)
Projected traffic12,000 by 2041
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerAir Force
Maintained byAir Force
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$38,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Vandenberg Ave over Alaska Railroad built?

It was built in 2002, making it 23 years old in 2025.

What condition is Vandenberg Ave over Alaska Railroad 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 August 2023.

How much traffic does Vandenberg Ave over Alaska Railroad carry?

About 10,000 vehicles per day (2021 count).

How long is Vandenberg Ave over Alaska Railroad?

The structure is 77 ft (23.6 m) long with a longest span of 77 ft (23.6 m) and a deck 76 ft wide.

Who owns Vandenberg Ave over Alaska Railroad?

It is owned by the Air Force.