US Bridges

Crescent Road over Dragoon Creek

Fair

Spokane County, Washington · 1.0 S Chatteroy · Structure no. 084493000000000

Built
1986
39 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
92
2020 count
Owner
County
County Highway Agency

About this bridge

Crescent Road over Dragoon Creek is a prestressed concrete tee beam carrying Crescent Road over Dragoon Creek in Spokane County, Washington. It was built in 1986, so it is 39 years old, younger 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 92 vehicles a day, roughly 16% of them trucks, projected to reach 132 by 2042. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCrescent Road
CrossesDragoon Creek
Location1.0 S Chatteroy
RouteCounty Highway 657
CountySpokane County
StateWashington
Coordinates47.87531, -117.37376
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span77 ft (23.5 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (2020)
Projected traffic132 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Crescent Road over Dragoon Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Crescent Road over Dragoon Creek 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 September 2023.

How much traffic does Crescent Road over Dragoon Creek carry?

About 92 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is Crescent Road over Dragoon Creek?

The structure is 78 ft (23.8 m) long with a longest span of 77 ft (23.5 m) and a deck 32 ft wide.

Who owns Crescent Road over Dragoon Creek?

It is owned by the County Highway Agency.