US Bridges

9th Street over Pataha Creek

PoorPosted for load

Garfield County, Washington · 0.1 S US 12 on 9th · Structure no. 085547000000000

Built
1955
70 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
278
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

9th Street over Pataha Creek is a steel stringer/multi-beam or girder carrying 9th 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 278 vehicles a day, roughly 5% of them trucks, projected to reach 305 by 2039. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries9th Street
CrossesPataha Creek
Location0.1 S US 12 on 9th
RouteCity Street 9
Coordinates46.47248, -117.59894
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating23.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic278 (2019)
Projected traffic305 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$383,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 9th Street over Pataha Creek built?

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

What condition is 9th Street over Pataha Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does 9th Street over Pataha Creek carry?

About 278 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is 9th Street over Pataha Creek?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 25 ft wide.

Who owns 9th Street over Pataha Creek?

It is owned by the City or Municipal Highway Agency.