US Bridges

HWY 48 over Sheep Gulch

Fair

Grant County, Oregon · 6.23 MI S JCT US 26 · Structure no. 22448 048 00623

Built
2015
10 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
871
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 48 over Sheep Gulch is a concrete culvert carrying HWY 48 over Sheep Gulch in Grant County, Oregon. It was built in 2015, so it is 10 years old, younger 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.

It carries about 871 vehicles a day, roughly 26% of them trucks, projected to reach 920 by 2042. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 52.2 mi (84 km).

CarriesHWY 48
CrossesSheep Gulch
Location6.23 MI S JCT US 26
RouteU.S. Route US395
StateOregon
Coordinates44.33527, -118.95085
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length26 ft (7.8 m)
Longest span26 ft (7.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic871 (2022)
Projected traffic920 by 2042
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.2 mi (84 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 HWY 48 over Sheep Gulch built?

It was built in 2015, making it 10 years old in 2025.

What condition is HWY 48 over Sheep Gulch 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 June 2023.

How much traffic does HWY 48 over Sheep Gulch carry?

About 871 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is HWY 48 over Sheep Gulch?

The structure is 26 ft (7.8 m) long with a longest span of 26 ft (7.8 m).

Who owns HWY 48 over Sheep Gulch?

It is owned by the State Highway Agency.