US Bridges

NW Krieger RD over Whipple Creek

FairPosted for load

Clark County, Washington · 0.2 N of NW 179 ST · Structure no. 080645000000000

Built
1962
63 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
81 ft
2 main spans
Daily traffic
298
2022 count
Owner
County
County Highway Agency

About this bridge

NW Krieger RD over Whipple Creek is a prestressed concrete tee beam carrying NW Krieger RD over Whipple Creek in Clark 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 298 vehicles a day, roughly 9% of them trucks, projected to reach 500 by 2039. The structure is 81 ft (24.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNW Krieger RD
CrossesWhipple Creek
Location0.2 N of NW 179 ST
RouteCounty Highway 40400
CountyClark County
StateWashington
Coordinates45.75353, -122.74365
Functional classRural Minor Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic298 (2022)
Projected traffic500 by 2039
Trucks9%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NW Krieger RD over Whipple Creek built?

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

What condition is NW Krieger RD over Whipple 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 March 2024.

How much traffic does NW Krieger RD over Whipple Creek carry?

About 298 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is NW Krieger RD over Whipple Creek?

The structure is 81 ft (24.7 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns NW Krieger RD over Whipple Creek?

It is owned by the County Highway Agency.