US Bridges

Bullfrog Road over Cle Elum River

Fair

Kittitas County, Washington · 00.40 N I-90 · Structure no. 084079000000000

Built
1965
60 years old, rebuilt 2004
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
194 ft
3 main spans
Daily traffic
3,565
2020 count
Owner
County
County Highway Agency

About this bridge

Bullfrog Road over Cle Elum River is a steel stringer/multi-beam or girder carrying Bullfrog Road over Cle Elum River in Kittitas County, Washington. It was built in 1965 and reconstructed in 2004, so it is 60 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,565 vehicles a day, roughly 23% of them trucks, projected to reach 9,447 by 2040. The structure is 194 ft (59.1 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesBullfrog Road
CrossesCle Elum River
Location00.40 N I-90
RouteCounty Highway 92275
CountyKittitas County
StateWashington
Coordinates47.19103, -121.01546
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length194 ft (59.1 m)
Longest span150 ft (45.7 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,565 (2020)
Projected traffic9,447 by 2040
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Bullfrog Road over Cle Elum River built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2004.

What condition is Bullfrog Road over Cle Elum River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Bullfrog Road over Cle Elum River carry?

About 3,565 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is Bullfrog Road over Cle Elum River?

The structure is 194 ft (59.1 m) long with a longest span of 150 ft (45.7 m) and a deck 34 ft wide.

Who owns Bullfrog Road over Cle Elum River?

It is owned by the County Highway Agency.