US Bridges

B484 Crane Venator over S Fork Malheur River

Good

Harney County, Oregon · 22.1 MI or 78 Steens HWY · Structure no. 18084 C31325E33

Built
1996
29 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
61
2020 count
Owner
County
County Highway Agency

About this bridge

B484 Crane Venator over S Fork Malheur River is a prestressed concrete tee beam carrying B484 Crane Venator over S Fork Malheur River in Harney County, Oregon. It was built in 1996, so it is 29 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 61 vehicles a day, roughly 20% of them trucks, projected to reach 71 by 2025. The structure is 94 ft (28.7 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesB484 Crane Venator
CrossesS Fork Malheur River
Location22.1 MI or 78 Steens HWY
RouteCounty Highway 0B484
StateOregon
Coordinates43.40815, -118.28325
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length94 ft (28.7 m)
Longest span92 ft (28 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61 (2020)
Projected traffic71 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 B484 Crane Venator over S Fork Malheur River built?

It was built in 1996, making it 29 years old in 2025.

What condition is B484 Crane Venator over S Fork Malheur River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does B484 Crane Venator over S Fork Malheur River carry?

About 61 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is B484 Crane Venator over S Fork Malheur River?

The structure is 94 ft (28.7 m) long with a longest span of 92 ft (28 m) and a deck 28 ft wide.

Who owns B484 Crane Venator over S Fork Malheur River?

It is owned by the County Highway Agency.