US Bridges

Road over Sunday Creek

Fair

King County, Washington · 0.1MI E of 52/54 JCT · Structure no. 060505000001529

Built
1956
69 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
117 ft
3 main spans
Daily traffic
14
1991 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Sunday Creek is a steel stringer/multi-beam or girder carrying Road over Sunday Creek in King County, Washington. It was built in 1956, so it is 69 years old, older than the Washington average of 49.8 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 14 vehicles a day, projected to reach 21 by 2045. The structure is 117 ft (35.7 m) long and 17 ft wide. If it were closed, the detour would be 27.3 mi (44 km).

Location

Open in Google Maps
CarriesRoad
CrossesSunday Creek
Location0.1MI E of 52/54 JCT
RouteFederal Lands Road 52
CountyKing County
StateWashington
Coordinates47.2175, -121.4475
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.1 US tons
Inventory rating57.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length117 ft (35.7 m)
Longest span81 ft (24.7 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (1991)
Projected traffic21 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed27.3 mi (44 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 Sunday Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Road over Sunday 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 August 2023.

How much traffic does Road over Sunday Creek carry?

About 14 vehicles per day (1991 count).

How long is Road over Sunday Creek?

The structure is 117 ft (35.7 m) long with a longest span of 81 ft (24.7 m) and a deck 17 ft wide.

Who owns Road over Sunday Creek?

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