US Bridges

Old Glenn Palmer over Goat Creek

Fair

Matanuska-Susitna Borough, Alaska · Mile Point 6.2 · Structure no. 0538

Built
1977
48 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
1,710
2020 count
Owner
State
State Highway Agency

About this bridge

Old Glenn Palmer over Goat Creek is a prestressed concrete tee beam carrying Old Glenn Palmer over Goat Creek in Matanuska-Susitna Borough, 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 1,710 vehicles a day, roughly 8% of them trucks, projected to reach 2,230 by 2039. The structure is 83 ft (25.3 m) long and 30 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesOld Glenn Palmer
CrossesGoat Creek
LocationMile Point 6.2
RouteState Highway 576
StateAlaska
Coordinates61.4884, -149.09883
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length83 ft (25.3 m)
Longest span80 ft (24.4 m)
Deck width30 ft (9.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,710 (2020)
Projected traffic2,230 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Glenn Palmer over Goat Creek built?

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

What condition is Old Glenn Palmer over Goat Creek 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 2024.

How much traffic does Old Glenn Palmer over Goat Creek carry?

About 1,710 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Old Glenn Palmer over Goat Creek?

The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.

Who owns Old Glenn Palmer over Goat Creek?

It is owned by the State Highway Agency.