US Bridges

G.R. River Road over Sheep Creek

Good

Union County, Oregon · No Data Entered · Structure no. 061606000001090

Built
1979
46 years old
Condition
Good
inspected August 2021
Type
Slab
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
100
2001 count
Owner
Federal
U.S. Forest Service

About this bridge

G.R. River Road over Sheep Creek is a prestressed concrete slab carrying G.R. River Road over Sheep Creek in Union County, Oregon. It was built in 1979, so it is 46 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2045. The structure is 23 ft (6.9 m) long and 32 ft wide. If it were closed, the detour would be 95.1 mi (153 km).

CarriesG.R. River Road
CrossesSheep Creek
LocationNo Data Entered
RouteFederal Lands Road 51000
StateOregon
Coordinates45.08809, -118.40787
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating100.1 US tons
Inventory rating81 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2001)
Projected traffic150 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed95.1 mi (153 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 G.R. River Road over Sheep Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is G.R. River Road over Sheep Creek 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 August 2021.

How much traffic does G.R. River Road over Sheep Creek carry?

About 100 vehicles per day (2001 count), of which roughly 5% are trucks.

How long is G.R. River Road over Sheep Creek?

The structure is 23 ft (6.9 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns G.R. River Road over Sheep Creek?

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