US Bridges

Old Glenn Highway over Eklutna River

Good

Anchorage Municipality, Alaska · Mile Point 0.3 · Structure no. 0537

Built
2016
9 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
254 ft
2 main spans
Daily traffic
550
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Glenn Highway over Eklutna River is a prestressed concrete tee beam carrying Old Glenn Highway over Eklutna River in Anchorage Municipality, Alaska. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 550 vehicles a day, roughly 2% of them trucks, projected to reach 690 by 2039. The structure is 254 ft (77.4 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesOld Glenn Highway
CrossesEklutna River
LocationMile Point 0.3
RouteCounty Highway 0
StateAlaska
Coordinates61.44981, -149.36992
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating68.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHL 93
Structure length254 ft (77.4 m)
Longest span126 ft (38.3 m)
Deck width45 ft (13.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2020)
Projected traffic690 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Glenn Highway over Eklutna River built?

It was built in 2016, making it 9 years old in 2025.

What condition is Old Glenn Highway over Eklutna River 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 Old Glenn Highway over Eklutna River carry?

About 550 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Old Glenn Highway over Eklutna River?

The structure is 254 ft (77.4 m) long with a longest span of 126 ft (38.3 m) and a deck 45 ft wide.

Who owns Old Glenn Highway over Eklutna River?

It is owned by the City or Municipal Highway Agency.