US Bridges

Harris Rd. over Marys River

Fair

Benton County, Oregon · Harris RD · Structure no. 22130 000 00582

Built
1939
86 years old, rebuilt 2013
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
117 ft
1 main span
Daily traffic
75
2020 count
Owner
County
County Highway Agency

About this bridge

Harris Rd. over Marys River is a steel truss - thru carrying Harris Rd. over Marys River in Benton County, Oregon. It was built in 1939 and reconstructed in 2013, so it is 86 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 75 vehicles a day, projected to reach 99 by 2040. The structure is 117 ft (35.6 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHarris Rd.
CrossesMarys River
LocationHarris RD
RouteCounty Highway C0611
CountyBenton County
StateOregon
Coordinates44.58122, -123.50762
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.4 US tons
Inventory rating16.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1 (+1 approach)
Design loadHS 15
Structure length117 ft (35.6 m)
Longest span96 ft (29.4 m)
Deck width23 ft (7.1 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic99 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harris Rd. over Marys River built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2013.

What condition is Harris Rd. over Marys 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 2024.

How much traffic does Harris Rd. over Marys River carry?

About 75 vehicles per day (2020 count).

How long is Harris Rd. over Marys River?

The structure is 117 ft (35.6 m) long with a longest span of 96 ft (29.4 m) and a deck 23 ft wide.

Who owns Harris Rd. over Marys River?

It is owned by the County Highway Agency.