N89 over Stream

Good

Red Willow County, Nebraska · 1W Marion · Structure no. S089 00364

Built: 1958; 67 years old
Condition: Good; inspected April 2024
Type: Slab; Concrete Continuous
Length: 102 ft; 3 main spans
Daily traffic: 580; 2018 count
Owner: State; State Highway Agency

About this bridge

N89 over Stream is a concrete continuous slab carrying N89 over Stream in Red Willow County, Nebraska. It was built in 1958, so it is 67 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 580 vehicles a day, roughly 11% of them trucks, projected to reach 783 by 2038. The structure is 102 ft (31.1 m) long and 31 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

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CarriesN89

CrossesStream

Location1W Marion

RouteState Highway 89

CountyRed Willow County

StateNebraska

Coordinates40.0174, -100.5028

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.

Component	Rating	Meaning
Deck	8 Very Good	No problems noted.
Superstructure	8 Very Good	No problems noted.
Substructure	7 Good	Some minor problems.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionApril 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to 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 rating48.5 US tons

Inventory rating28.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadUnknown

Structure length102 ft (31.1 m)

Longest span41 ft (12.5 m)

Deck width31 ft (9.4 m)

Roadway width29 ft (8.7 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic580 (2018)

Projected traffic783 by 2038

Trucks11%

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 N89 over Stream built?

It was built in 1958, making it 67 years old in 2025.

What condition is N89 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 April 2024.

How much traffic does N89 over Stream carry?

About 580 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is N89 over Stream?

The structure is 102 ft (31.1 m) long with a longest span of 41 ft (12.5 m) and a deck 31 ft wide.

Who owns N89 over Stream?

It is owned by the State Highway Agency.