US Bridges

Columbia Street over Pataha Creek

Fair

Garfield County, Washington · 0.1E 20STR on Col · Structure no. 085572000000000

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
75
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Columbia Street over Pataha Creek is a prestressed concrete channel beam carrying Columbia Street over Pataha Creek in Garfield County, Washington. It was built in 1965, so it is 60 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.

It carries about 75 vehicles a day, roughly 5% of them trucks, projected to reach 85 by 2040. The structure is 30 ft (9.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesColumbia Street
CrossesPataha Creek
Location0.1E 20STR on Col
RouteCity Street 40
Coordinates46.47306, -117.58147
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic85 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$413,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Columbia Street over Pataha Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Columbia 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 Columbia Street over Pataha Creek carry?

About 75 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Columbia Street over Pataha Creek?

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

Who owns Columbia Street over Pataha Creek?

It is owned by the City or Municipal Highway Agency.