US Bridges

Fir Street over Olequa Creek

Good

Lewis County, Washington · 0.14 Mile NW of SR 505 · Structure no. 089042000000000

Built
2018
7 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
138 ft
1 main span
Daily traffic
1,199
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fir Street over Olequa Creek is a concrete stringer/multi-beam or girder carrying Fir Street over Olequa Creek in Lewis County, Washington. It was built in 2018, so it is 7 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 1,199 vehicles a day, roughly 9% of them trucks, projected to reach 2,297 by 2039. The structure is 138 ft (42.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFir Street
CrossesOlequa Creek
Location0.14 Mile NW of SR 505
RouteCity Street 93193
Coordinates46.49328, -122.93919
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating55.3 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length138 ft (42.1 m)
Longest span131 ft (39.8 m)
Deck width36 ft (10.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,199 (2018)
Projected traffic2,297 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fir Street over Olequa Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Fir Street over Olequa 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 October 2024.

How much traffic does Fir Street over Olequa Creek carry?

About 1,199 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Fir Street over Olequa Creek?

The structure is 138 ft (42.1 m) long with a longest span of 131 ft (39.8 m) and a deck 36 ft wide.

Who owns Fir Street over Olequa Creek?

It is owned by the City or Municipal Highway Agency.