US Bridges

Youngs River Lp RD over Youngs River

Good

Clatsop County, Oregon · 002 MI N Youngs River Fal · Structure no. 11170A070100780

Built
1980
45 years old
Condition
Good
inspected March 2023
Type
Slab
Prestressed Concrete
Length
176 ft
4 main spans
Daily traffic
450
2020 count
Owner
County
County Highway Agency

About this bridge

Youngs River Lp RD over Youngs River is a prestressed concrete slab carrying Youngs River Lp RD over Youngs River in Clatsop County, Oregon. It was built in 1980, so it is 45 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 450 vehicles a day, roughly 10% of them trucks, projected to reach 515 by 2025. The structure is 176 ft (53.6 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesYoungs River Lp RD
CrossesYoungs River
Location002 MI N Youngs River Fal
RouteCounty Highway A0733
StateOregon
Coordinates46.06975, -123.78566
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span70 ft (21.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2020)
Projected traffic515 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Youngs River Lp RD over Youngs River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Youngs River Lp RD over Youngs 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 March 2023.

How much traffic does Youngs River Lp RD over Youngs River carry?

About 450 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Youngs River Lp RD over Youngs River?

The structure is 176 ft (53.6 m) long with a longest span of 70 ft (21.3 m) and a deck 28 ft wide.

Who owns Youngs River Lp RD over Youngs River?

It is owned by the County Highway Agency.