US Bridges

218 Av E over Cwa Canal

Good

Pierce County, Washington · 2.1 N JCT SR410 · Structure no. 083513000000000

Built
1966
59 years old, rebuilt 2004
Condition
Good
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
12,425
2020 count
Owner
County
County Highway Agency

About this bridge

218 Av E over Cwa Canal is a concrete continuous tee beam carrying 218 Av E over Cwa Canal in Pierce County, Washington. It was built in 1966 and reconstructed in 2004, so it is 59 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,425 vehicles a day, roughly 5% of them trucks, projected to reach 20,000 by 2041. The structure is 125 ft (38.1 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries218 Av E
CrossesCwa Canal
Location2.1 N JCT SR410
RouteCounty Highway 88870
Coordinates47.19642, -122.14084
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length125 ft (38.1 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,425 (2020)
Projected traffic20,000 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.1 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 218 Av E over Cwa Canal built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2004.

What condition is 218 Av E over Cwa Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does 218 Av E over Cwa Canal carry?

About 12,425 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 218 Av E over Cwa Canal?

The structure is 125 ft (38.1 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns 218 Av E over Cwa Canal?

It is owned by the County Highway Agency.