US Bridges

N79 over Dunlap Creek

Fair

Saunders County, Nebraska · 8N Valparaiso · Structure no. S079 02159

Built
1960
65 years old, rebuilt 1974
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
62 ft
3 main spans
Daily traffic
1,110
2018 count
Owner
State
State Highway Agency

About this bridge

N79 over Dunlap Creek is a concrete continuous slab carrying N79 over Dunlap Creek in Saunders County, Nebraska. It was built in 1960 and reconstructed in 1974, so it is 65 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 5 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 1,110 vehicles a day, roughly 10% of them trucks, projected to reach 1,610 by 2038. The structure is 62 ft (18.9 m) long and 31 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN79
CrossesDunlap Creek
Location8N Valparaiso
RouteState Highway 79
Coordinates41.193, -96.8323
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating30.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length62 ft (18.9 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,110 (2018)
Projected traffic1,610 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N79 over Dunlap Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1974.

What condition is N79 over Dunlap Creek 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 June 2024.

How much traffic does N79 over Dunlap Creek carry?

About 1,110 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N79 over Dunlap Creek?

The structure is 62 ft (18.9 m) long with a longest span of 25 ft (7.6 m) and a deck 31 ft wide.

Who owns N79 over Dunlap Creek?

It is owned by the State Highway Agency.