US Bridges

Whoopemup Hol. Rd. over Whetstone Creek

GoodPosted for load

Columbia County, Washington · 0.1 S. JCT 9218 · Structure no. 082396000000000

Built
1977
48 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
25
2020 count
Owner
County
County Highway Agency

About this bridge

Whoopemup Hol. Rd. over Whetstone Creek is a prestressed concrete stringer/multi-beam or girder carrying Whoopemup Hol. Rd. over Whetstone Creek in Columbia County, Washington. It was built in 1977, so it is 48 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, roughly 15% of them trucks, projected to reach 30 by 2042. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWhoopemup Hol. Rd.
CrossesWhetstone Creek
Location0.1 S. JCT 9218
RouteCounty Highway 22630
CountyColumbia County
StateWashington
Coordinates46.34066, -118.10592
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2020)
Projected traffic30 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-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$228,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Whoopemup Hol. Rd. over Whetstone Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Whoopemup Hol. Rd. 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 Whoopemup Hol. Rd. over Whetstone Creek carry?

About 25 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Whoopemup Hol. Rd. over Whetstone Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns Whoopemup Hol. Rd. over Whetstone Creek?

It is owned by the County Highway Agency.