US Bridges

Cameron Creek RD over Cameron Creek

Good

Cowlitz County, Washington · 1.28 N of SR 4 (mp 48.13) · Structure no. 086837000000000

Built
1997
28 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
3
2020 count
Owner
County
County Highway Agency

About this bridge

Cameron Creek RD over Cameron Creek is a prestressed concrete stringer/multi-beam or girder carrying Cameron Creek RD over Cameron Creek in Cowlitz County, Washington. It was built in 1997, so it is 28 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3 vehicles a day, roughly 70% of them trucks, projected to reach 5 by 2040. The structure is 55 ft (16.8 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCameron Creek RD
CrossesCameron Creek
Location1.28 N of SR 4 (mp 48.13)
RouteCounty Highway 20850
Coordinates46.20694, -123.16722
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating27.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3 (2020)
Projected traffic5 by 2040
Trucks70%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cameron Creek RD over Cameron Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Cameron Creek RD over Cameron Creek 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 August 2023.

How much traffic does Cameron Creek RD over Cameron Creek carry?

About 3 vehicles per day (2020 count), of which roughly 70% are trucks.

How long is Cameron Creek RD over Cameron Creek?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 18 ft wide.

Who owns Cameron Creek RD over Cameron Creek?

It is owned by the County Highway Agency.