US Bridges

Alley over China Creek

Good

Lewis County, Washington · SW Alley Maple/Pearl · Structure no. 089117000000000

Built
1946
79 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
41 ft
2 main spans
Daily traffic
10
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alley over China Creek is a concrete slab carrying Alley over China Creek in Lewis County, Washington. It was built in 1946, so it is 79 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 10 vehicles a day, roughly 40% of them trucks, projected to reach 10 by 2040. The structure is 41 ft (12.5 m) long and 21 ft wide.

CarriesAlley
CrossesChina Creek
LocationSW Alley Maple/Pearl
RouteCity Street 180
Coordinates46.71896, -122.95488
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 protection8 Very GoodNo problems noted.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span19 ft (5.8 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic10 (2018)
Projected traffic10 by 2040
Trucks40%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Alley over China Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is Alley over China 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 October 2023.

How much traffic does Alley over China Creek carry?

About 10 vehicles per day (2018 count), of which roughly 40% are trucks.

How long is Alley over China Creek?

The structure is 41 ft (12.5 m) long with a longest span of 19 ft (5.8 m) and a deck 21 ft wide.

Who owns Alley over China Creek?

It is owned by the City or Municipal Highway Agency.