US Bridges

Kelso Street over Stowe Creek

FairPosted for load

Lewis County, Washington · 0.5 Blk E Main ST · Structure no. 085591000000000

Built
1950
75 years old
Condition
Fair
inspected January 2023
Type
Tee Beam
Concrete
Length
29 ft
1 main span
Daily traffic
355
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kelso Street over Stowe Creek is a concrete tee beam carrying Kelso Street over Stowe Creek in Lewis County, Washington. It was built in 1950, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 355 vehicles a day, roughly 9% of them trucks, projected to reach 660 by 2036. The structure is 29 ft (8.8 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKelso Street
CrossesStowe Creek
Location0.5 Blk E Main ST
RouteCity Street 975
Coordinates46.56875, -123.29678
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
Deck7 GoodSome minor problems.
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width26 ft (7.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic355 (2015)
Projected traffic660 by 2036
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$358,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kelso Street over Stowe Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Kelso Street over Stowe 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 January 2023.

How much traffic does Kelso Street over Stowe Creek carry?

About 355 vehicles per day (2015 count), of which roughly 9% are trucks.

How long is Kelso Street over Stowe Creek?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 26 ft wide.

Who owns Kelso Street over Stowe Creek?

It is owned by the City or Municipal Highway Agency.