US Bridges

Old Glenn Palmer over Old Glenn Overcrossing

Fair

Anchorage Municipality, Alaska · Mile Point 0.2 · Structure no. 1883

Built
1994
31 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
205 ft
2 main spans
Daily traffic
1,260
2020 count
Owner
State
State Highway Agency

About this bridge

Old Glenn Palmer over Old Glenn Overcrossing is a prestressed concrete tee beam carrying Old Glenn Palmer over Old Glenn Overcrossing in Anchorage Municipality, Alaska. It was built in 1994, so it is 31 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 1,260 vehicles a day, roughly 5% of them trucks, projected to reach 1,460 by 2039. The structure is 205 ft (62.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Glenn Palmer
CrossesOld Glenn Overcrossing
LocationMile Point 0.2
RouteState Highway 0S576
StateAlaska
Coordinates61.47389, -149.26278
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating105.1 US tons
Inventory rating41.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length205 ft (62.4 m)
Longest span106 ft (32.3 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,260 (2020)
Projected traffic1,460 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Glenn Palmer over Old Glenn Overcrossing built?

It was built in 1994, making it 31 years old in 2025.

What condition is Old Glenn Palmer over Old Glenn 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 July 2023.

How much traffic does Old Glenn Palmer over Old Glenn Overcrossing carry?

About 1,260 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Old Glenn Palmer over Old Glenn Overcrossing?

The structure is 205 ft (62.4 m) long with a longest span of 106 ft (32.3 m) and a deck 42 ft wide.

Who owns Old Glenn Palmer over Old Glenn Overcrossing?

It is owned by the State Highway Agency.