US Bridges

Eager Road over Whetstone Creek

Good

Columbia County, Washington · 2.0 N JCT 9218 · Structure no. 080474000000000

Built
1925
100 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

Eager Road over Whetstone Creek is a concrete continuous culvert carrying Eager Road over Whetstone Creek in Columbia County, Washington. It was built in 1925, so it is 100 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 250 vehicles a day, roughly 15% of them trucks, projected to reach 300 by 2042. The structure is 23 ft (7 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesEager Road
CrossesWhetstone Creek
Location2.0 N JCT 9218
RouteCounty Highway 92160
Coordinates46.36914, -117.97875
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width23 ft (7.1 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic300 by 2042
Trucks15%
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$284,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Eager Road over Whetstone Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is Eager Road over Whetstone 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 October 2024.

How much traffic does Eager Road over Whetstone Creek carry?

About 250 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Eager Road over Whetstone Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 23 ft wide.

Who owns Eager Road over Whetstone Creek?

It is owned by the County Highway Agency.