US Bridges

Rancheria Road over Illinois River

Fair

Josephine County, Oregon · 10 MI W of 97538 · Structure no. 061104000001048

Built
1966
59 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
138 ft
4 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Rancheria Road over Illinois River is a steel stringer/multi-beam or girder carrying Rancheria Road over Illinois River in Josephine County, Oregon. It was built in 1966, so it is 59 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 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 138 ft (42.2 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesRancheria Road
CrossesIllinois River
Location10 MI W of 97538
RouteFederal Lands Road 41030
CountyJosephine County
StateOregon
Coordinates42.30481, -123.77864
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating40 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans4
Design loadHS 20
Structure length138 ft (42.2 m)
Longest span42 ft (12.8 m)
Deck width16 ft (4.9 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rancheria Road over Illinois River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Rancheria Road over Illinois 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 Rancheria Road over Illinois River carry?

About 50 vehicles per day (latest count).

How long is Rancheria Road over Illinois River?

The structure is 138 ft (42.2 m) long with a longest span of 42 ft (12.8 m) and a deck 16 ft wide.

Who owns Rancheria Road over Illinois River?

It is owned by the U.S. Forest Service.