US Bridges

Glenn Highway over Edmonds Lake U.C. - S.B.

Fair

Anchorage Municipality, Alaska · Mile Point 22.7 · Structure no. 1868

Built
1977
48 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
15,500
2020 count
Owner
State
State Highway Agency

About this bridge

Glenn Highway over Edmonds Lake U.C. - S.B. is a prestressed concrete tee beam carrying Glenn Highway over Edmonds Lake U.C. - S.B. in Anchorage Municipality, Alaska. It was built in 1977, so it is 48 years old, older 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 15,500 vehicles a day, roughly 17% of them trucks, projected to reach 18,050 by 2039. The structure is 106 ft (32.3 m) long and 39 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesGlenn Highway
CrossesEdmonds Lake U.C. - S.B.
LocationMile Point 22.7
RouteInterstate 0A16
CountyAnchorage Municipality
StateAlaska
Coordinates61.43528, -149.40194
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span101 ft (30.9 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2020)
Projected traffic18,050 by 2039
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Glenn Highway over Edmonds Lake U.C. - S.B. built?

It was built in 1977, making it 48 years old in 2025.

What condition is Glenn Highway over Edmonds Lake U.C. - S.B. 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 Glenn Highway over Edmonds Lake U.C. - S.B. carry?

About 15,500 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Glenn Highway over Edmonds Lake U.C. - S.B.?

The structure is 106 ft (32.3 m) long with a longest span of 101 ft (30.9 m) and a deck 39 ft wide.

Who owns Glenn Highway over Edmonds Lake U.C. - S.B.?

It is owned by the State Highway Agency.