US Bridges

66 Av E over Clarks Creek

Fair

Pierce County, Washington · 0.7 S JCT SR 410 · Structure no. 082460000000000

Built
1950
75 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
4,850
2020 count
Owner
County
County Highway Agency

About this bridge

66 Av E over Clarks Creek is a concrete continuous slab carrying 66 Av E over Clarks Creek in Pierce County, Washington. It was built in 1950, so it is 75 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 4,850 vehicles a day, roughly 5% of them trucks, projected to reach 920 by 2039. The structure is 71 ft (21.5 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries66 Av E
CrossesClarks Creek
Location0.7 S JCT SR 410
RouteCounty Highway 96590
CountyPierce County
StateWashington
Coordinates47.204, -122.34204
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
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 rating73 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length71 ft (21.5 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,850 (2020)
Projected traffic920 by 2039
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$2.5 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 66 Av E over Clarks Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is 66 Av E over Clarks 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 July 2023.

How much traffic does 66 Av E over Clarks Creek carry?

About 4,850 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 66 Av E over Clarks Creek?

The structure is 71 ft (21.5 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns 66 Av E over Clarks Creek?

It is owned by the County Highway Agency.