US Bridges

Road over Hansen Creek

Good

King County, Washington · 2.8 MI E of I-90/55 JCT · Structure no. 060505000001556

Built
1994
31 years old
Condition
Good
inspected August 2021
Type
Slab
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
25
1992 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Hansen Creek is a prestressed concrete slab carrying Road over Hansen Creek in King County, Washington. It was built in 1994, so it is 31 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 37 by 2045. The structure is 61 ft (18.6 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesRoad
CrossesHansen Creek
Location2.8 MI E of I-90/55 JCT
RouteFederal Lands Road 55
Coordinates47.39111, -121.52861
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80 US tons
Inventory rating48.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length61 ft (18.6 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (1992)
Projected traffic37 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Hansen Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Road over Hansen Creek 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 August 2021.

How much traffic does Road over Hansen Creek carry?

About 25 vehicles per day (1992 count).

How long is Road over Hansen Creek?

The structure is 61 ft (18.6 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns Road over Hansen Creek?

It is owned by the U.S. Forest Service.