US Bridges

Independence Road over Independence Creek

Good

Lewis County, Washington · 0.23 N JCT 10000 · Structure no. 081912000000000

Built
1956
69 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
81 ft
4 main spans
Daily traffic
523
2021 count
Owner
County
County Highway Agency

About this bridge

Independence Road over Independence Creek is a concrete continuous slab carrying Independence Road over Independence Creek in Lewis County, Washington. It was built in 1956, so it is 69 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 523 vehicles a day, roughly 12% of them trucks, projected to reach 945 by 2041. The structure is 81 ft (24.8 m) long and 29 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesIndependence Road
CrossesIndependence Creek
Location0.23 N JCT 10000
RouteCounty Highway 10024
Coordinates46.78986, -123.17014
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating37 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length81 ft (24.8 m)
Longest span22 ft (6.7 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic523 (2021)
Projected traffic945 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Independence Road over Independence Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Independence Road over Independence 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 2023.

How much traffic does Independence Road over Independence Creek carry?

About 523 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Independence Road over Independence Creek?

The structure is 81 ft (24.8 m) long with a longest span of 22 ft (6.7 m) and a deck 29 ft wide.

Who owns Independence Road over Independence Creek?

It is owned by the County Highway Agency.