US Bridges

Elk Creek RD over Eight Cr.

Good

Lewis County, Washington · 3.W of Doty · Structure no. 080809000000000

Built
1983
42 years old
Condition
Good
inspected December 2022
Type
Slab
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
95
2022 count
Owner
County
County Highway Agency

About this bridge

Elk Creek RD over Eight Cr. is a prestressed concrete slab carrying Elk Creek RD over Eight Cr. in Lewis County, Washington. It was built in 1983, so it is 42 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 95 vehicles a day, roughly 58% of them trucks, projected to reach 172 by 2042. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesElk Creek RD
CrossesEight Cr.
Location3.W of Doty
RouteCounty Highway 27071
Coordinates46.63154, -123.33732
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 protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2022)
Projected traffic172 by 2042
Trucks58%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$324,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Elk Creek RD over Eight Cr. built?

It was built in 1983, making it 42 years old in 2025.

What condition is Elk Creek RD over Eight Cr. 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 Elk Creek RD over Eight Cr. carry?

About 95 vehicles per day (2022 count), of which roughly 58% are trucks.

How long is Elk Creek RD over Eight Cr.?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 16 ft wide.

Who owns Elk Creek RD over Eight Cr.?

It is owned by the County Highway Agency.