US Bridges

Minkler Road over Olequa Creek

Fair

Lewis County, Washington · 1.0 W St. Urban · Structure no. 082928000000000

Built
1951
74 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
26 ft
1 main span
Daily traffic
691
2022 count
Owner
County
County Highway Agency

About this bridge

Minkler Road over Olequa Creek is a concrete stringer/multi-beam or girder carrying Minkler Road over Olequa Creek in Lewis County, Washington. It was built in 1951, so it is 74 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 691 vehicles a day, roughly 9% of them trucks, projected to reach 1,248 by 2042. The structure is 26 ft (7.9 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMinkler Road
CrossesOlequa Creek
Location1.0 W St. Urban
RouteCounty Highway 30170
CountyLewis County
StateWashington
Coordinates46.5175, -122.90687
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 alignment6: Equal to present minimum criteria
Operating rating68 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic691 (2022)
Projected traffic1,248 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$346,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Minkler Road over Olequa Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is Minkler Road over Olequa 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 February 2023.

How much traffic does Minkler Road over Olequa Creek carry?

About 691 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Minkler Road over Olequa Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 27 ft wide.

Who owns Minkler Road over Olequa Creek?

It is owned by the County Highway Agency.