US Bridges

R37B FAS 1687 over Tri-County Supply Canal

FairPosted for load

Gosper County, Nebraska · 1.5E 6N of Elwood · Structure no. C003702905P

Built
1959
66 years old, rebuilt 2016
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
225 ft
1 main span
Daily traffic
765
2011 count
Owner
Local
Other Local Agency

About this bridge

R37B FAS 1687 over Tri-County Supply Canal is a steel stringer/multi-beam or girder carrying R37B FAS 1687 over Tri-County Supply Canal in Gosper County, Nebraska. It was built in 1959 and reconstructed in 2016, so it is 66 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. Its operating status is: posted for load restriction.

It carries about 765 vehicles a day, projected to reach 615 by 2033. The structure is 225 ft (68.6 m) long and 23 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

Location

Open in Google Maps
CarriesR37B FAS 1687
CrossesTri-County Supply Canal
Location1.5E 6N of Elwood
RouteCounty Highway 1687
CountyGosper County
StateNebraska
Coordinates40.6915, -99.8303
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16.5 US tons
Inventory rating9.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1 (+6 approach)
Design loadUnknown
Structure length225 ft (68.6 m)
Longest span50 ft (15.2 m)
Deck width23 ft (7.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic765 (2011)
Projected traffic615 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was R37B FAS 1687 over Tri-County Supply Canal built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2016.

What condition is R37B FAS 1687 over Tri-County Supply 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 October 2024.

How much traffic does R37B FAS 1687 over Tri-County Supply Canal carry?

About 765 vehicles per day (2011 count).

How long is R37B FAS 1687 over Tri-County Supply Canal?

The structure is 225 ft (68.6 m) long with a longest span of 50 ft (15.2 m) and a deck 23 ft wide.

Who owns R37B FAS 1687 over Tri-County Supply Canal?

It is owned by the Other Local Agency.