US Bridges

Old Seward Highway over Rabbit CR Overcrossing

Fair

Anchorage Municipality, Alaska · Mile Point 0.4 · Structure no. 1392

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
414 ft
3 main spans
Daily traffic
10,200
2020 count
Owner
State
State Highway Agency

About this bridge

Old Seward Highway over Rabbit CR Overcrossing is a prestressed concrete tee beam carrying Old Seward Highway over Rabbit CR Overcrossing in Anchorage Municipality, Alaska. It was built in 1990, so it is 35 years old, younger 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 10,200 vehicles a day, roughly 5% of them trucks, projected to reach 11,100 by 2039. The structure is 414 ft (126.3 m) long and 97 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOld Seward Highway
CrossesRabbit CR Overcrossing
LocationMile Point 0.4
RouteState Highway 504
CountyAnchorage Municipality
StateAlaska
Coordinates61.08722, -149.83444
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
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 rating103 US tons
Inventory rating47.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 25 or greater
Structure length414 ft (126.3 m)
Longest span149 ft (45.4 m)
Deck width97 ft (29.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,200 (2020)
Projected traffic11,100 by 2039
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Old Seward Highway over Rabbit CR Overcrossing built?

It was built in 1990, making it 35 years old in 2025.

What condition is Old Seward Highway over Rabbit CR Overcrossing 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 June 2023.

How much traffic does Old Seward Highway over Rabbit CR Overcrossing carry?

About 10,200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Old Seward Highway over Rabbit CR Overcrossing?

The structure is 414 ft (126.3 m) long with a longest span of 149 ft (45.4 m) and a deck 97 ft wide.

Who owns Old Seward Highway over Rabbit CR Overcrossing?

It is owned by the State Highway Agency.