US Bridges

County Highway over Tri-County Supply Canal

PoorPosted for load

Gosper County, Nebraska · 8N 1E of Smithfield · Structure no. C003744110

Built
1963
62 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
154 ft
5 main spans
Daily traffic
20
2011 count
Owner
Local
Other Local Agency

About this bridge

County Highway over Tri-County Supply Canal is a wood or timber stringer/multi-beam or girder carrying County Highway over Tri-County Supply Canal in Gosper County, Nebraska. It was built in 1963, so it is 62 years old, older than the Nebraska average of 47.1 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 20 vehicles a day, projected to reach 127 by 2033. The structure is 154 ft (46.9 m) long and 20 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesTri-County Supply Canal
Location8N 1E of Smithfield
RouteCounty Highway 441
CountyGosper County
StateNebraska
Coordinates40.6927, -99.7189
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.6 US tons
Inventory rating9.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length154 ft (46.9 m)
Longest span31 ft (9.4 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2011)
Projected traffic127 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Tri-County Supply Canal built?

It was built in 1963, making it 62 years old in 2025.

What condition is County Highway over Tri-County Supply Canal 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 October 2023.

How much traffic does County Highway over Tri-County Supply Canal carry?

About 20 vehicles per day (2011 count).

How long is County Highway over Tri-County Supply Canal?

The structure is 154 ft (46.9 m) long with a longest span of 31 ft (9.4 m) and a deck 20 ft wide.

Who owns County Highway over Tri-County Supply Canal?

It is owned by the Other Local Agency.