US Bridges

Glenn Highway over Peters Creek Southbound

Fair

Anchorage Municipality, Alaska · Mile Point 19.8 · Structure no. 1344

Built
1977
48 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
168 ft
3 main spans
Daily traffic
18,250
2020 count
Owner
State
State Highway Agency

About this bridge

Glenn Highway over Peters Creek Southbound is a steel continuous stringer/multi-beam or girder carrying Glenn Highway over Peters Creek Southbound 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 18,250 vehicles a day, roughly 17% of them trucks, projected to reach 27,350 by 2039. The structure is 168 ft (51.2 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGlenn Highway
CrossesPeters Creek Southbound
LocationMile Point 19.8
RouteInterstate 0A16
CountyAnchorage Municipality
StateAlaska
Coordinates61.4049, -149.4596
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span63 ft (19.2 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,250 (2020)
Projected traffic27,350 by 2039
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Glenn Highway over Peters Creek Southbound built?

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

What condition is Glenn Highway over Peters Creek Southbound 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 Peters Creek Southbound carry?

About 18,250 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Glenn Highway over Peters Creek Southbound?

The structure is 168 ft (51.2 m) long with a longest span of 63 ft (19.2 m) and a deck 37 ft wide.

Who owns Glenn Highway over Peters Creek Southbound?

It is owned by the State Highway Agency.