US Bridges

Ruckman Road over State Ditch

Fair

Union County, Oregon · 1.1 MI N of Market Lane · Structure no. 18004 035 00300

Built
1999
26 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
116 ft
1 main span
Daily traffic
64
2020 count
Owner
County
County Highway Agency

About this bridge

Ruckman Road over State Ditch is a prestressed concrete tee beam carrying Ruckman Road over State Ditch in Union County, Oregon. It was built in 1999, so it is 26 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 5 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 64 vehicles a day, roughly 1% of them trucks, projected to reach 69 by 2025. The structure is 116 ft (35.4 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesRuckman Road
CrossesState Ditch
Location1.1 MI N of Market Lane
RouteCounty Highway 0
CountyUnion County
StateOregon
Coordinates45.39394, -117.93136
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length116 ft (35.4 m)
Longest span114 ft (34.7 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64 (2020)
Projected traffic69 by 2025
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 Ruckman Road over State Ditch built?

It was built in 1999, making it 26 years old in 2025.

What condition is Ruckman Road over State Ditch 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 September 2023.

How much traffic does Ruckman Road over State Ditch carry?

About 64 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Ruckman Road over State Ditch?

The structure is 116 ft (35.4 m) long with a longest span of 114 ft (34.7 m) and a deck 32 ft wide.

Who owns Ruckman Road over State Ditch?

It is owned by the County Highway Agency.