US Bridges

N 70th ST over I80

Good

Lancaster County, Nebraska · 1E US77 Intrchg · Structure no. S080 40677

Built
2010
15 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
326 ft
2 main spans
Daily traffic
240
2003 count
Owner
State
State Highway Agency

About this bridge

N 70th ST over I80 is a prestressed concrete continuous stringer/multi-beam or girder carrying N 70th ST over I80 in Lancaster County, Nebraska. It was built in 2010, so it is 15 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 240 vehicles a day, roughly 23% of them trucks, projected to reach 348 by 2033. The structure is 326 ft (99.4 m) long and 39 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN 70th ST
CrossesI80
Location1E US77 Intrchg
RouteCounty Highway 231
Coordinates40.8968, -96.6245
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating41.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length326 ft (99.4 m)
Longest span162 ft (49.4 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2003)
Projected traffic348 by 2033
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed31.1 mi (50 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 N 70th ST over I80 built?

It was built in 2010, making it 15 years old in 2025.

What condition is N 70th ST over I80 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does N 70th ST over I80 carry?

About 240 vehicles per day (2003 count), of which roughly 23% are trucks.

How long is N 70th ST over I80?

The structure is 326 ft (99.4 m) long with a longest span of 162 ft (49.4 m) and a deck 39 ft wide.

Who owns N 70th ST over I80?

It is owned by the State Highway Agency.