US Bridges

SB-US77 over I80

Fair

Lancaster County, Nebraska · Salt Valley RD Intrchg · Structure no. S080 39730

Built
1989
36 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
239 ft
2 main spans
Daily traffic
23,695
2018 count
Owner
State
State Highway Agency

About this bridge

SB-US77 over I80 is a steel continuous stringer/multi-beam or girder carrying SB-US77 over I80 in Lancaster County, Nebraska. It was built in 1989, so it is 36 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 23,695 vehicles a day, roughly 10% of them trucks, projected to reach 51,916 by 2038. The structure is 239 ft (72.8 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesSB-US77
CrossesI80
LocationSalt Valley RD Intrchg
RouteU.S. Route 77
CountyLancaster County
StateNebraska
Coordinates40.8174, -96.7565
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.2 US tons
Inventory rating34.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length239 ft (72.8 m)
Longest span127 ft (38.7 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,695 (2018)
Projected traffic51,916 by 2038
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 SB-US77 over I80 built?

It was built in 1989, making it 36 years old in 2025.

What condition is SB-US77 over I80 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 February 2025.

How much traffic does SB-US77 over I80 carry?

About 23,695 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is SB-US77 over I80?

The structure is 239 ft (72.8 m) long with a longest span of 127 ft (38.7 m) and a deck 44 ft wide.

Who owns SB-US77 over I80?

It is owned by the State Highway Agency.