US Bridges

Sheep Camp RD over Grandview Irrigation Cnl

PoorPosted for load

Owyhee County, Idaho · 1.3 E. Grandview · Structure no. 000000000028317

Built
1991
34 years old
Condition
Poor
inspected February 2024
Type
Tee Beam
Wood or Timber
Length
26 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

Sheep Camp RD over Grandview Irrigation Cnl is a wood or timber tee beam carrying Sheep Camp RD over Grandview Irrigation Cnl in Owyhee County, Idaho. It was built in 1991, so it is 34 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2039. The structure is 26 ft (7.9 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSheep Camp RD
CrossesGrandview Irrigation Cnl
Location1.3 E. Grandview
RouteCounty Highway 0
StateIdaho
Coordinates42.96865, -116.05713
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating28 US tons
Inventory rating20 US tons

Structure

Structure typeTee Beam
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$326,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sheep Camp RD over Grandview Irrigation Cnl built?

It was built in 1991, making it 34 years old in 2025.

What condition is Sheep Camp RD over Grandview Irrigation Cnl in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does Sheep Camp RD over Grandview Irrigation Cnl carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sheep Camp RD over Grandview Irrigation Cnl?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 16 ft wide.

Who owns Sheep Camp RD over Grandview Irrigation Cnl?

It is owned by the County Highway Agency.