US Bridges

Elkhorn Drive over N. Fk. John Day River

Good

Grant County, Oregon · Junc FSR 73 and 52. · Structure no. 061601000012617

Built
2011
14 years old
Condition
Good
inspected June 2022
Type
Slab
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
130
2001 count
Owner
Federal
U.S. Forest Service

About this bridge

Elkhorn Drive over N. Fk. John Day River is a prestressed concrete slab carrying Elkhorn Drive over N. Fk. John Day River in Grant County, Oregon. It was built in 2011, so it is 14 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 130 vehicles a day, roughly 10% of them trucks, projected to reach 195 by 2045. The structure is 66 ft (20.1 m) long and 36 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesElkhorn Drive
CrossesN. Fk. John Day River
LocationJunc FSR 73 and 52.
RouteFederal Lands Road 73000
CountyGrant County
StateOregon
Coordinates44.91298, -118.40033
Functional classRural Local

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 inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.8 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2001)
Projected traffic195 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
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 Elkhorn Drive over N. Fk. John Day River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Elkhorn Drive over N. Fk. John Day 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 June 2022.

How much traffic does Elkhorn Drive over N. Fk. John Day River carry?

About 130 vehicles per day (2001 count), of which roughly 10% are trucks.

How long is Elkhorn Drive over N. Fk. John Day River?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 36 ft wide.

Who owns Elkhorn Drive over N. Fk. John Day River?

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