US Bridges

Roaring Creek Road over Entiat River

Good

Chelan County, Washington · 0.08W Entiat River RD · Structure no. 085630000000000

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
144 ft
1 main span
Daily traffic
137
2022 count
Owner
County
County Highway Agency

About this bridge

Roaring Creek Road over Entiat River is a prestressed concrete stringer/multi-beam or girder carrying Roaring Creek Road over Entiat River in Chelan 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 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 137 vehicles a day, roughly 1% of them trucks, projected to reach 190 by 2046. The structure is 144 ft (44 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRoaring Creek Road
CrossesEntiat River
Location0.08W Entiat River RD
RouteCounty Highway 47850
Coordinates47.69667, -120.32167
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length144 ft (44 m)
Longest span140 ft (42.7 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137 (2022)
Projected traffic190 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Roaring Creek Road over Entiat River built?

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

What condition is Roaring Creek Road over Entiat River 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 2024.

How much traffic does Roaring Creek Road over Entiat River carry?

About 137 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Roaring Creek Road over Entiat River?

The structure is 144 ft (44 m) long with a longest span of 140 ft (42.7 m) and a deck 34 ft wide.

Who owns Roaring Creek Road over Entiat River?

It is owned by the County Highway Agency.