US Bridges

Leonard Road over Lacamas Creek

GoodPosted for load

Lewis County, Washington · 0.63 N JCT SR 12 · Structure no. 080801000000000

Built
1962
63 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,725
2021 count
Owner
County
County Highway Agency

About this bridge

Leonard Road over Lacamas Creek is a concrete slab carrying Leonard Road over Lacamas Creek in Lewis County, Washington. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 1,725 vehicles a day, roughly 22% of them trucks, projected to reach 3,116 by 2041. The structure is 32 ft (9.9 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLeonard Road
CrossesLacamas Creek
Location0.63 N JCT SR 12
RouteCounty Highway 94014
Coordinates46.54137, -122.71994
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.9 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,725 (2021)
Projected traffic3,116 by 2041
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$432,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Leonard Road over Lacamas Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Leonard 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 Leonard Road over Lacamas Creek carry?

About 1,725 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is Leonard Road over Lacamas Creek?

The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Leonard Road over Lacamas Creek?

It is owned by the County Highway Agency.