US Bridges

Sargent Road over Olequa Creek

Good

Lewis County, Washington · 2.0 SE Eveline · Structure no. 081730000000000

Built
1972
53 years old
Condition
Good
inspected December 2022
Type
Slab
Concrete
Length
74 ft
3 main spans
Daily traffic
621
2022 count
Owner
County
County Highway Agency

About this bridge

Sargent Road over Olequa Creek is a concrete slab carrying Sargent Road over Olequa Creek in Lewis County, Washington. It was built in 1972, so it is 53 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 621 vehicles a day, roughly 9% of them trucks, projected to reach 1,122 by 2042. The structure is 74 ft (22.6 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSargent Road
CrossesOlequa Creek
Location2.0 SE Eveline
RouteCounty Highway 30501
Coordinates46.51805, -122.90445
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum 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 rating63.9 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span27 ft (8.2 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic621 (2022)
Projected traffic1,122 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$984,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sargent Road over Olequa Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Sargent Road 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 December 2022.

How much traffic does Sargent Road over Olequa Creek carry?

About 621 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Sargent Road over Olequa Creek?

The structure is 74 ft (22.6 m) long with a longest span of 27 ft (8.2 m) and a deck 30 ft wide.

Who owns Sargent Road over Olequa Creek?

It is owned by the County Highway Agency.