US Bridges

Harrison Ave. over Dry Creek

Fair

Lewis County, Washington · 1.0 N Centralia · Structure no. 083380000000000

Built
1926
99 years old, rebuilt 1979
Condition
Fair
inspected January 2023
Type
Tee Beam
Concrete
Length
71 ft
3 main spans
Daily traffic
9,304
2022 count
Owner
County
County Highway Agency

About this bridge

Harrison Ave. over Dry Creek is a concrete tee beam carrying Harrison Ave. over Dry Creek in Lewis County, Washington. It was built in 1926 and reconstructed in 1979, so it is 99 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,304 vehicles a day, roughly 16% of them trucks, projected to reach 16,805 by 2042. The structure is 71 ft (21.6 m) long and 43 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesHarrison Ave.
CrossesDry Creek
Location1.0 N Centralia
RouteCounty Highway 91000
CountyLewis County
StateWashington
Coordinates46.76427, -123.00409
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 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 rating51 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length71 ft (21.6 m)
Longest span32 ft (9.8 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,304 (2022)
Projected traffic16,805 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrison Ave. over Dry Creek built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1979.

What condition is Harrison Ave. over Dry 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 Harrison Ave. over Dry Creek carry?

About 9,304 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Harrison Ave. over Dry Creek?

The structure is 71 ft (21.6 m) long with a longest span of 32 ft (9.8 m) and a deck 43 ft wide.

Who owns Harrison Ave. over Dry Creek?

It is owned by the County Highway Agency.