US Bridges

County Road 1100 over Asotin Creek

Good

Asotin County, Washington · JCT Lick Creek Road · Structure no. 085981000000000

Built
1992
33 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
111 ft
1 main span
Daily traffic
12
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 1100 over Asotin Creek is a prestressed concrete tee beam carrying County Road 1100 over Asotin Creek in Asotin County, Washington. It was built in 1992, so it is 33 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 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 12 vehicles a day, roughly 28% of them trucks, projected to reach 45 by 2040. The structure is 111 ft (33.8 m) long and 30 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesCounty Road 1100
CrossesAsotin Creek
LocationJCT Lick Creek Road
RouteCounty Highway 110
Coordinates46.27357, -117.29255
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87 US tons
Inventory rating58 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span103 ft (31.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2020)
Projected traffic45 by 2040
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed26.7 mi (43 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 1100 over Asotin Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road 1100 over Asotin 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 April 2024.

How much traffic does County Road 1100 over Asotin Creek carry?

About 12 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is County Road 1100 over Asotin Creek?

The structure is 111 ft (33.8 m) long with a longest span of 103 ft (31.4 m) and a deck 30 ft wide.

Who owns County Road 1100 over Asotin Creek?

It is owned by the County Highway Agency.