US Bridges

W 45th Avenue over Kid Canal

Fair

Benton County, Washington · 00.70 W Olympia ST · Structure no. 085206000000000

Built
1955
70 years old, rebuilt 1984
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
3,011
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

W 45th Avenue over Kid Canal is a prestressed concrete stringer/multi-beam or girder carrying W 45th Avenue over Kid Canal in Benton County, Washington. It was built in 1955 and reconstructed in 1984, 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.

It carries about 3,011 vehicles a day, roughly 1% of them trucks, projected to reach 4,818 by 2041. 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).

Location

Open in Google Maps
CarriesW 45th Avenue
CrossesKid Canal
Location00.70 W Olympia ST
RouteCity Street 610
CountyBenton County
StateWashington
Coordinates46.16833, -119.15278
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
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 rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,011 (2021)
Projected traffic4,818 by 2041
Trucks1%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was W 45th Avenue over Kid Canal built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1984.

What condition is W 45th Avenue over Kid 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 45th Avenue over Kid Canal carry?

About 3,011 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is W 45th Avenue over Kid Canal?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9 m) and a deck 30 ft wide.

Who owns W 45th Avenue over Kid Canal?

It is owned by the City or Municipal Highway Agency.