US Bridges

Stevens Road over Johnson Creek

Good

Kittitas County, Washington · 00.03 S I-90 · Structure no. 083138000000000

Built
1968
57 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
62
2023 count
Owner
County
County Highway Agency

About this bridge

Stevens Road over Johnson Creek is a concrete continuous slab carrying Stevens Road over Johnson Creek in Kittitas County, Washington. It was built in 1968, so it is 57 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 62 vehicles a day, roughly 2% of them trucks, projected to reach 82 by 2041. The structure is 71 ft (21.6 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesStevens Road
CrossesJohnson Creek
Location00.03 S I-90
RouteCounty Highway 69460
Coordinates46.95568, -120.29889
Functional classRural Minor Collector

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length71 ft (21.6 m)
Longest span47 ft (14.3 m)
Deck width27 ft (8.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2023)
Projected traffic82 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stevens Road over Johnson Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Stevens Road over Johnson 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 November 2023.

How much traffic does Stevens Road over Johnson Creek carry?

About 62 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Stevens Road over Johnson Creek?

The structure is 71 ft (21.6 m) long with a longest span of 47 ft (14.3 m) and a deck 27 ft wide.

Who owns Stevens Road over Johnson Creek?

It is owned by the County Highway Agency.