US Bridges

288 ST S over Lacamas Creek

Good

Pierce County, Washington · 2.6 E JCT SR507 · Structure no. 088836000000000

Built
2015
10 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
1,025
2024 count
Owner
County
County Highway Agency

About this bridge

288 ST S over Lacamas Creek is a prestressed concrete slab carrying 288 ST S over Lacamas Creek in Pierce County, Washington. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,025 vehicles a day, roughly 5% of them trucks, projected to reach 1,700 by 2040. The structure is 46 ft (14 m) long and 48 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Carries288 ST S
CrossesLacamas Creek
Location2.6 E JCT SR507
RouteCounty Highway 41900
Coordinates46.99616, -122.4943
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.6 US tons
Inventory rating61.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length46 ft (14 m)
Longest span41 ft (12.5 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,025 (2024)
Projected traffic1,700 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 288 ST S over Lacamas Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is 288 ST S over Lacamas 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 June 2024.

How much traffic does 288 ST S over Lacamas Creek carry?

About 1,025 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 288 ST S over Lacamas Creek?

The structure is 46 ft (14 m) long with a longest span of 41 ft (12.5 m) and a deck 48 ft wide.

Who owns 288 ST S over Lacamas Creek?

It is owned by the County Highway Agency.