US Bridges

N79 over North Oak Creek Trib.

Good

Lancaster County, Nebraska · 2S Agnew · Structure no. S079 00690

Built
2018
7 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
2,750
2018 count
Owner
State
State Highway Agency

About this bridge

N79 over North Oak Creek Trib. is a concrete culvert carrying N79 over North Oak Creek Trib. in Lancaster County, Nebraska. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,750 vehicles a day, roughly 10% of them trucks, projected to reach 4,538 by 2038. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN79
CrossesNorth Oak Creek Trib.
Location2S Agnew
RouteState Highway 79
Coordinates40.986, -96.796
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.6 US tons
Inventory rating71.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2018)
Projected traffic4,538 by 2038
Trucks10%
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

OwnerState Highway Agency
Maintained byState Highway 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 N79 over North Oak Creek Trib. built?

It was built in 2018, making it 7 years old in 2025.

What condition is N79 over North Oak Creek Trib. 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 February 2025.

How much traffic does N79 over North Oak Creek Trib. carry?

About 2,750 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N79 over North Oak Creek Trib.?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns N79 over North Oak Creek Trib.?

It is owned by the State Highway Agency.