US Bridges

Alvord Road over Salzer Creek

Good

Lewis County, Washington · 0.5 E Centralia · Structure no. 081999000000000

Built
1964
61 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
47 ft
2 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

Alvord Road over Salzer Creek is a concrete slab carrying Alvord Road over Salzer Creek in Lewis County, Washington. It was built in 1964, so it is 61 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 25 vehicles a day, roughly 24% of them trucks, projected to reach 46 by 2042. The structure is 47 ft (14.3 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesAlvord Road
CrossesSalzer Creek
Location0.5 E Centralia
RouteCounty Highway 15750
Coordinates46.70135, -122.94492
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span22 ft (6.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic46 by 2042
Trucks24%
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$625,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Alvord Road over Salzer Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Alvord Road over Salzer 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 January 2023.

How much traffic does Alvord Road over Salzer Creek carry?

About 25 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Alvord Road over Salzer Creek?

The structure is 47 ft (14.3 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.

Who owns Alvord Road over Salzer Creek?

It is owned by the County Highway Agency.