US Bridges

County Road 29 over Tri-State Canal

Fair

Scotts Bluff County, Nebraska · 4.2N 1W of Minatare · Structure no. C007915715

Built
1965
60 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
66 ft
2 main spans
Daily traffic
50
2003 count
Owner
County
County Highway Agency

About this bridge

County Road 29 over Tri-State Canal is a steel continuous stringer/multi-beam or girder carrying County Road 29 over Tri-State Canal in Scotts Bluff County, Nebraska. It was built in 1965, so it is 60 years old, older than the Nebraska average of 47.1 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 50 vehicles a day, projected to reach 85 by 2033. The structure is 66 ft (20.1 m) long and 23 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

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CarriesCounty Road 29
CrossesTri-State Canal
Location4.2N 1W of Minatare
RouteCounty Highway 157
CountyScotts Bluff County
StateNebraska
Coordinates41.8767, -103.5183
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.1 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length66 ft (20.1 m)
Longest span33 ft (10.1 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2003)
Projected traffic85 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 County Road 29 over Tri-State Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Road 29 over Tri-State Canal 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 November 2023.

How much traffic does County Road 29 over Tri-State Canal carry?

About 50 vehicles per day (2003 count).

How long is County Road 29 over Tri-State Canal?

The structure is 66 ft (20.1 m) long with a longest span of 33 ft (10.1 m) and a deck 23 ft wide.

Who owns County Road 29 over Tri-State Canal?

It is owned by the County Highway Agency.