US Bridges

Drews Prairie Road over Lacamas Creek

Good

Lewis County, Washington · 1.0 W Toledo · Structure no. 081402000000000

Built
1971
54 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
102 ft
1 main span
Daily traffic
309
2021 count
Owner
County
County Highway Agency

About this bridge

Drews Prairie Road over Lacamas Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Drews Prairie Road over Lacamas Creek in Lewis County, Washington. It was built in 1971, so it is 54 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 309 vehicles a day, roughly 18% of them trucks, projected to reach 559 by 2041. The structure is 102 ft (31.1 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDrews Prairie Road
CrossesLacamas Creek
Location1.0 W Toledo
RouteCounty Highway 55030
Coordinates46.45336, -122.88001
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating48 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic309 (2021)
Projected traffic559 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Drews Prairie Road over Lacamas Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Drews Prairie Road over Lacamas 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 February 2024.

How much traffic does Drews Prairie Road over Lacamas Creek carry?

About 309 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is Drews Prairie Road over Lacamas Creek?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 31 ft wide.

Who owns Drews Prairie Road over Lacamas Creek?

It is owned by the County Highway Agency.