US Bridges

East Cc ST over Lewis River

Fair

Cowlitz County, Washington · 0.14 E SR 503 (mp 54.31) · Structure no. 082302000000000

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
595 ft
3 main spans
Daily traffic
6,628
2015 count
Owner
County
County Highway Agency

About this bridge

East Cc ST over Lewis River is a steel continuous stringer/multi-beam or girder carrying East Cc ST over Lewis River in Cowlitz County, Washington. It was built in 1966, 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 fair condition with a lowest component rating of 6 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 6,628 vehicles a day, roughly 12% of them trucks, projected to reach 8,500 by 2035. The structure is 595 ft (181.4 m) long and 34 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesEast Cc ST
CrossesLewis River
Location0.14 E SR 503 (mp 54.31)
RouteCounty Highway 30300
CountyCowlitz County
StateWashington
Coordinates45.90583, -122.73722
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment6: Equal to present minimum criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length595 ft (181.4 m)
Longest span223 ft (68 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,628 (2015)
Projected traffic8,500 by 2035
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$8.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was East Cc ST over Lewis River built?

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

What condition is East Cc ST over Lewis River 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 March 2023.

How much traffic does East Cc ST over Lewis River carry?

About 6,628 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is East Cc ST over Lewis River?

The structure is 595 ft (181.4 m) long with a longest span of 223 ft (68 m) and a deck 34 ft wide.

Who owns East Cc ST over Lewis River?

It is owned by the County Highway Agency.