US Bridges

US6/N31 over BNSF RR 073-173-R

Fair

Sarpy County, Nebraska · 1N Gretna · Structure no. S006 34908

Built
1979
46 years old, rebuilt 2006
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
184 ft
3 main spans
Daily traffic
22,520
2018 count
Owner
State
State Highway Agency

About this bridge

US6/N31 over BNSF RR 073-173-R is a steel continuous stringer/multi-beam or girder carrying US6/N31 over BNSF RR 073-173-R in Sarpy County, Nebraska. It was built in 1979 and reconstructed in 2006, so it is 46 years old, younger 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 22,520 vehicles a day, roughly 4% of them trucks, projected to reach 42,788 by 2038. The structure is 184 ft (56.1 m) long and 77 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesUS6/N31
CrossesBNSF RR 073-173-R
Location1N Gretna
RouteU.S. Route 6
CountySarpy County
StateNebraska
Coordinates41.1488, -96.239
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.3 US tons
Inventory rating40.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span70 ft (21.3 m)
Deck width77 ft (23.6 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,520 (2018)
Projected traffic42,788 by 2038
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed18.6 mi (30 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US6/N31 over BNSF RR 073-173-R built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2006.

What condition is US6/N31 over BNSF RR 073-173-R 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 January 2024.

How much traffic does US6/N31 over BNSF RR 073-173-R carry?

About 22,520 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is US6/N31 over BNSF RR 073-173-R?

The structure is 184 ft (56.1 m) long with a longest span of 70 ft (21.3 m) and a deck 77 ft wide.

Who owns US6/N31 over BNSF RR 073-173-R?

It is owned by the State Highway Agency.