US Bridges

HWY 92 over Eilertsen Creek

Good

Columbia County, Oregon · 6.0 MI W Clatskanie · Structure no. 21455 092 06787

Built
2011
14 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
7,278
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 92 over Eilertsen Creek is a prestressed concrete slab carrying HWY 92 over Eilertsen Creek in Columbia County, Oregon. It was built in 2011, so it is 14 years old, younger than the Oregon average of 49.9 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 7,278 vehicles a day, roughly 9% of them trucks, projected to reach 7,400 by 2042. The structure is 37 ft (11.3 m) long and 48 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesHWY 92
CrossesEilertsen Creek
Location6.0 MI W Clatskanie
RouteU.S. Route 30
StateOregon
Coordinates46.11499, -123.32443
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating57.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,278 (2022)
Projected traffic7,400 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 HWY 92 over Eilertsen Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is HWY 92 over Eilertsen 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 HWY 92 over Eilertsen Creek carry?

About 7,278 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is HWY 92 over Eilertsen Creek?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 48 ft wide.

Who owns HWY 92 over Eilertsen Creek?

It is owned by the State Highway Agency.