US Bridges

NE Etna Road over Cedar Creek

Good

Clark County, Washington · 1.0 E Cedar Creek RD · Structure no. 088940000000000

Built
2017
8 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
129 ft
1 main span
Daily traffic
335
2022 count
Owner
County
County Highway Agency

About this bridge

NE Etna Road over Cedar Creek is a concrete stringer/multi-beam or girder carrying NE Etna Road over Cedar Creek in Clark County, Washington. It was built in 2017, so it is 8 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 335 vehicles a day, roughly 44% of them trucks, projected to reach 400 by 2042. The structure is 129 ft (39.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNE Etna Road
CrossesCedar Creek
Location1.0 E Cedar Creek RD
RouteCounty Highway 61580
Coordinates45.93567, -122.619
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating44.3 US tons

Structure

MaterialConcrete
DeckOther
Main spans1
Design loadHL 93
Structure length129 ft (39.3 m)
Longest span125 ft (38.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic335 (2022)
Projected traffic400 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NE Etna Road over Cedar Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is NE Etna Road over Cedar 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 December 2022.

How much traffic does NE Etna Road over Cedar Creek carry?

About 335 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is NE Etna Road over Cedar Creek?

The structure is 129 ft (39.3 m) long with a longest span of 125 ft (38.1 m) and a deck 31 ft wide.

Who owns NE Etna Road over Cedar Creek?

It is owned by the County Highway Agency.