US Bridges

HWY 180 over Yaquina River

Fair

Lincoln County, Oregon · 05.0 MI JCT HWY 33 · Structure no. 01402A180 00493

Built
1981
44 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
148 ft
3 main spans
Daily traffic
52
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 180 over Yaquina River is a prestressed concrete slab carrying HWY 180 over Yaquina River in Lincoln County, Oregon. It was built in 1981, so it is 44 years old, younger than the Oregon average of 49.9 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 52 vehicles a day, roughly 15% of them trucks, projected to reach 60 by 2042. The structure is 148 ft (45.1 m) long and 28 ft wide. If it were closed, the detour would be 22.4 mi (36 km).

Location

Open in Google Maps
CarriesHWY 180
CrossesYaquina River
Location05.0 MI JCT HWY 33
RouteState Highway 180
CountyLincoln County
StateOregon
Coordinates44.66529, -123.72387
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length148 ft (45.1 m)
Longest span66 ft (20.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52 (2022)
Projected traffic60 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed22.4 mi (36 km)
TollOn a free road
National Highway SystemNo

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 180 over Yaquina River built?

It was built in 1981, making it 44 years old in 2025.

What condition is HWY 180 over Yaquina River 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 June 2023.

How much traffic does HWY 180 over Yaquina River carry?

About 52 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is HWY 180 over Yaquina River?

The structure is 148 ft (45.1 m) long with a longest span of 66 ft (20.1 m) and a deck 28 ft wide.

Who owns HWY 180 over Yaquina River?

It is owned by the State Highway Agency.