US Bridges

W 1st Avenue over C.I.D. Canal

Fair

Benton County, Washington · .08 S JCT Kenn Av · Structure no. 084991000000000

Built
1956
69 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
24 ft
1 main span
Daily traffic
10,411
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

W 1st Avenue over C.I.D. Canal is a concrete tee beam carrying W 1st Avenue over C.I.D. Canal in Benton County, Washington. It was built in 1956, so it is 69 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 10,411 vehicles a day, roughly 2% of them trucks, projected to reach 16,658 by 2041. The structure is 24 ft (7.3 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW 1st Avenue
CrossesC.I.D. Canal
Location.08 S JCT Kenn Av
RouteCity Street 610
CountyBenton County
StateWashington
Coordinates46.205, -119.12167
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating42.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (6.9 m)
Deck width61 ft (18.6 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,411 (2021)
Projected traffic16,658 by 2041
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W 1st Avenue over C.I.D. Canal built?

It was built in 1956, making it 69 years old in 2025.

What condition is W 1st Avenue over C.I.D. Canal 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 November 2024.

How much traffic does W 1st Avenue over C.I.D. Canal carry?

About 10,411 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is W 1st Avenue over C.I.D. Canal?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (6.9 m) and a deck 61 ft wide.

Who owns W 1st Avenue over C.I.D. Canal?

It is owned by the City or Municipal Highway Agency.