US Bridges

Waldo Road over Illinois River

FairPosted for load

Josephine County, Oregon · T40S-R8W-S19 Josephine CO · Structure no. 33C14 556000053

Built
1966
59 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
255 ft
4 main spans
Daily traffic
393
2020 count
Owner
County
County Highway Agency

About this bridge

Waldo Road over Illinois River is a steel stringer/multi-beam or girder carrying Waldo 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 393 vehicles a day, roughly 5% of them trucks, projected to reach 463 by 2025. The structure is 255 ft (77.7 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesWaldo Road
CrossesIllinois River
LocationT40S-R8W-S19 Josephine CO
RouteCounty Highway A3180
CountyJosephine County
StateOregon
Coordinates42.07232, -123.68704
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
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating17.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span63 ft (19.2 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic393 (2020)
Projected traffic463 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Waldo Road over Illinois River built?

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

What condition is Waldo 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 October 2024.

How much traffic does Waldo Road over Illinois River carry?

About 393 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Waldo Road over Illinois River?

The structure is 255 ft (77.7 m) long with a longest span of 63 ft (19.2 m) and a deck 33 ft wide.

Who owns Waldo Road over Illinois River?

It is owned by the County Highway Agency.