US Bridges

Parks Highway over Rabideux Creek

Fair

Matanuska-Susitna Borough, Alaska · Mile Point 70.3 · Structure no. 4108

Built
1967
58 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
1,650
2020 count
Owner
State
State Highway Agency

About this bridge

Parks Highway over Rabideux Creek is a steel culvert carrying Parks Highway over Rabideux Creek in Matanuska-Susitna Borough, Alaska. It was built in 1967, so it is 58 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 5 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 1,650 vehicles a day, roughly 6% of them trucks, projected to reach 2,990 by 2039. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesParks Highway
CrossesRabideux Creek
LocationMile Point 70.3
RouteInterstate 0A42
StateAlaska
Coordinates62.19056, -150.21035
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 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 evaluation5: 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 rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2020)
Projected traffic2,990 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Parks Highway over Rabideux Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Parks Highway over Rabideux 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 Parks Highway over Rabideux Creek carry?

About 1,650 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Parks Highway over Rabideux Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Parks Highway over Rabideux Creek?

It is owned by the State Highway Agency.