US Bridges

N84 over Stream

Good

Knox County, Nebraska · Sjct N84/121 5.5W · Structure no. S084 02254

Built
1982
43 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
87 ft
3 main spans
Daily traffic
1,320
2018 count
Owner
State
State Highway Agency

About this bridge

N84 over Stream is a concrete continuous slab carrying N84 over Stream in Knox County, Nebraska. It was built in 1982, so it is 43 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 1,320 vehicles a day, roughly 9% of them trucks, projected to reach 1,716 by 2038. The structure is 87 ft (26.5 m) long and 34 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN84
CrossesStream
LocationSjct N84/121 5.5W
RouteState Highway 84
Coordinates42.5977, -97.6323
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.4 US tons
Inventory rating35.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span34 ft (10.4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,320 (2018)
Projected traffic1,716 by 2038
Trucks9%
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 N84 over Stream built?

It was built in 1982, making it 43 years old in 2025.

What condition is N84 over Stream 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 October 2024.

How much traffic does N84 over Stream carry?

About 1,320 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is N84 over Stream?

The structure is 87 ft (26.5 m) long with a longest span of 34 ft (10.4 m) and a deck 34 ft wide.

Who owns N84 over Stream?

It is owned by the State Highway Agency.