US Bridges

Lower Queets Valle over Mud Creek

Good

Jefferson County, Washington · 4.8 Mi. NE of Jct. Hwy. 1 · Structure no. 9500010P0000000

Built
1974
51 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
75
2011 count
Owner
Federal
National Park Service

About this bridge

Lower Queets Valle over Mud Creek is a prestressed concrete stringer/multi-beam or girder carrying Lower Queets Valle over Mud Creek in Jefferson County, Washington. It was built in 1974, so it is 51 years old, older 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 75 vehicles a day, roughly 1% of them trucks, projected to reach 150 by 2031. The structure is 100 ft (30.5 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLower Queets Valle
CrossesMud Creek
Location4.8 Mi. NE of Jct. Hwy. 1
RouteFederal Lands Road 106
Coordinates47.56897, -124.15786
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length100 ft (30.5 m)
Longest span98 ft (29.9 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2011)
Projected traffic150 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lower Queets Valle over Mud Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Lower Queets Valle over Mud 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 2023.

How much traffic does Lower Queets Valle over Mud Creek carry?

About 75 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Lower Queets Valle over Mud Creek?

The structure is 100 ft (30.5 m) long with a longest span of 98 ft (29.9 m) and a deck 22 ft wide.

Who owns Lower Queets Valle over Mud Creek?

It is owned by the National Park Service.