US Bridges

Salmon Creek RD over Winston Cr.

Good

Lewis County, Washington · 0.19 S JCT 60073 · Structure no. 084712000000000

Built
1953
72 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Concrete
Length
59 ft
1 main span
Daily traffic
192
2021 count
Owner
County
County Highway Agency

About this bridge

Salmon Creek RD over Winston Cr. is a concrete tee beam carrying Salmon Creek RD over Winston Cr. in Lewis County, Washington. It was built in 1953, so it is 72 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 192 vehicles a day, roughly 29% of them trucks, projected to reach 347 by 2041. The structure is 59 ft (18.1 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSalmon Creek RD
CrossesWinston Cr.
Location0.19 S JCT 60073
RouteCounty Highway 60070
Coordinates46.48286, -122.52115
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
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 rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length59 ft (18.1 m)
Longest span57 ft (17.4 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192 (2021)
Projected traffic347 by 2041
Trucks29%
Lanes on structure2
Traffic directionTwo-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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$677,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Salmon Creek RD over Winston Cr. built?

It was built in 1953, making it 72 years old in 2025.

What condition is Salmon Creek RD over Winston Cr. 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 January 2024.

How much traffic does Salmon Creek RD over Winston Cr. carry?

About 192 vehicles per day (2021 count), of which roughly 29% are trucks.

How long is Salmon Creek RD over Winston Cr.?

The structure is 59 ft (18.1 m) long with a longest span of 57 ft (17.4 m) and a deck 22 ft wide.

Who owns Salmon Creek RD over Winston Cr.?

It is owned by the County Highway Agency.