US Bridges

8th Street over Pataha Creek

FairPosted for load

Garfield County, Washington · 0.1 S US 12 on 8th · Structure no. 085546000000000

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
75
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th Street over Pataha Creek is a steel stringer/multi-beam or girder carrying 8th Street over Pataha Creek in Garfield County, Washington. It was built in 1955, so it is 70 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. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, roughly 5% of them trucks, projected to reach 85 by 2039. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries8th Street
CrossesPataha Creek
Location0.1 S US 12 on 8th
RouteCity Street 8
Coordinates46.47262, -117.60039
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating42.5 US tons
Inventory rating25.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2019)
Projected traffic85 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$386,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 8th Street over Pataha Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is 8th Street over Pataha 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 October 2024.

How much traffic does 8th Street over Pataha Creek carry?

About 75 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is 8th Street over Pataha Creek?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns 8th Street over Pataha Creek?

It is owned by the City or Municipal Highway Agency.