US Bridges

N79 over Platte River

Good

Dodge County, Nebraska · 1S North Bend · Structure no. S079 04229

Built
1974
51 years old, rebuilt 2000
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,453 ft
12 main spans
Daily traffic
2,925
2018 count
Owner
State
State Highway Agency

About this bridge

N79 over Platte River is a steel continuous stringer/multi-beam or girder carrying N79 over Platte River in Dodge County, Nebraska. It was built in 1974 and reconstructed in 2000, so it is 51 years old, older 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 2,925 vehicles a day, roughly 10% of them trucks, projected to reach 4,241 by 2038. The structure is 1,453 ft (442.9 m) long and 43 ft wide. If it were closed, the detour would be 341.8 mi (550 km).

CarriesN79
CrossesPlatte River
Location1S North Bend
RouteState Highway 79
Coordinates41.4505, -96.7739
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length1,453 ft (442.9 m)
Longest span130 ft (39.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,925 (2018)
Projected traffic4,241 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed341.8 mi (550 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N79 over Platte River built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2000.

What condition is N79 over Platte River 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 2024.

How much traffic does N79 over Platte River carry?

About 2,925 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N79 over Platte River?

The structure is 1,453 ft (442.9 m) long with a longest span of 130 ft (39.6 m) and a deck 43 ft wide.

Who owns N79 over Platte River?

It is owned by the State Highway Agency.