US Bridges

US 20 (hwy 33) over Yaquina River

Good

Lincoln County, Oregon · MP 16.65 · Structure no. 20231 033 01407

Built
2012
13 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
379 ft
3 main spans
Daily traffic
6,601
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 33) over Yaquina River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 20 (hwy 33) over Yaquina River in Lincoln County, Oregon. It was built in 2012, so it is 13 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 6,601 vehicles a day, roughly 17% of them trucks, projected to reach 7,000 by 2042. The structure is 379 ft (115.5 m) long and 43 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesUS 20 (hwy 33)
CrossesYaquina River
LocationMP 16.65
RouteU.S. Route 20
StateOregon
Coordinates44.65179, -123.8418
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating76.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length379 ft (115.5 m)
Longest span155 ft (47.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,601 (2022)
Projected traffic7,000 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 km)
TollOn a free road
National Highway SystemYes

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 US 20 (hwy 33) over Yaquina River built?

It was built in 2012, making it 13 years old in 2025.

What condition is US 20 (hwy 33) over Yaquina 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 July 2023.

How much traffic does US 20 (hwy 33) over Yaquina River carry?

About 6,601 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 20 (hwy 33) over Yaquina River?

The structure is 379 ft (115.5 m) long with a longest span of 155 ft (47.2 m) and a deck 43 ft wide.

Who owns US 20 (hwy 33) over Yaquina River?

It is owned by the State Highway Agency.