US Bridges

Pleasant Hill Road over Trib of S Yamhill River

Fair

Polk County, Oregon · .5 Wsw of Ballston · Structure no. 53C141066100240

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Pleasant Hill Road over Trib of S Yamhill River is a prestressed concrete slab carrying Pleasant Hill Road over Trib of S Yamhill River in Polk County, Oregon. It was built in 1965, so it is 60 years old, older 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 80 vehicles a day, roughly 1% of them trucks, projected to reach 109 by 2040. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesPleasant Hill Road
CrossesTrib of S Yamhill River
Location.5 Wsw of Ballston
RouteCounty Highway 0
StateOregon
Coordinates45.05914, -123.36251
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic109 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Pleasant Hill Road over Trib of S Yamhill River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Pleasant Hill Road over Trib of S Yamhill 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 August 2024.

How much traffic does Pleasant Hill Road over Trib of S Yamhill River carry?

About 80 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Pleasant Hill Road over Trib of S Yamhill River?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.

Who owns Pleasant Hill Road over Trib of S Yamhill River?

It is owned by the County Highway Agency.