US Bridges

Oak Street over Cid Canal

PoorPosted for load

Benton County, Washington · 185 S of Bowles Road · Structure no. 082290000000000

Built
1958
67 years old
Condition
Poor
inspected February 2024
Type
Channel Beam
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
1,003
2016 count
Owner
County
County Highway Agency

About this bridge

Oak Street over Cid Canal is a prestressed concrete channel beam carrying Oak Street over Cid Canal in Benton County, Washington. It was built in 1958, so it is 67 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 1,003 vehicles a day, roughly 33% of them trucks, projected to reach 1,100 by 2038. The structure is 36 ft (11 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesOak Street
CrossesCid Canal
Location185 S of Bowles Road
RouteCounty Highway 76130
Coordinates46.17013, -119.09702
Functional classUrban Collector

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29 US tons
Inventory rating18 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 15
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,003 (2016)
Projected traffic1,100 by 2038
Trucks33%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$462,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Oak Street over Cid Canal built?

It was built in 1958, making it 67 years old in 2025.

What condition is Oak Street over Cid Canal 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 February 2024.

How much traffic does Oak Street over Cid Canal carry?

About 1,003 vehicles per day (2016 count), of which roughly 33% are trucks.

How long is Oak Street over Cid Canal?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 24 ft wide.

Who owns Oak Street over Cid Canal?

It is owned by the County Highway Agency.