US Bridges

Hubbard RD over Long Tom River

Fair

Benton County, Oregon · 0004 MI E of HWY 99-W · Structure no. 24011 000 00004

Built
2023
2 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
315 ft
6 main spans
Daily traffic
360
2021 count
Owner
County
County Highway Agency

About this bridge

Hubbard RD over Long Tom River is a prestressed concrete slab carrying Hubbard RD over Long Tom River in Benton County, Oregon. It was built in 2023, so it is 2 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 360 vehicles a day, roughly 10% of them trucks, projected to reach 536 by 2041. The structure is 315 ft (96 m) long and 28 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesHubbard RD
CrossesLong Tom River
Location0004 MI E of HWY 99-W
RouteCounty Highway 0
StateOregon
Coordinates44.36299, -123.29072
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length315 ft (96 m)
Longest span52 ft (16 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2021)
Projected traffic536 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Hubbard RD over Long Tom River built?

It was built in 2023, making it 2 years old in 2025.

What condition is Hubbard RD over Long Tom 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 July 2023.

How much traffic does Hubbard RD over Long Tom River carry?

About 360 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Hubbard RD over Long Tom River?

The structure is 315 ft (96 m) long with a longest span of 52 ft (16 m) and a deck 28 ft wide.

Who owns Hubbard RD over Long Tom River?

It is owned by the County Highway Agency.