US Bridges

N23 over Stream

Good

Lincoln County, Nebraska · 1W Farnam · Structure no. S023 10930

Built
1964
61 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
720
2018 count
Owner
State
State Highway Agency

About this bridge

N23 over Stream is a concrete culvert carrying N23 over Stream in Lincoln County, Nebraska. It was built in 1964, so it is 61 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 720 vehicles a day, roughly 17% of them trucks, projected to reach 936 by 2038. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN23
CrossesStream
Location1W Farnam
RouteState Highway 23
Coordinates40.7057, -100.2396
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 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 traffic720 (2018)
Projected traffic936 by 2038
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 N23 over Stream built?

It was built in 1964, making it 61 years old in 2025.

What condition is N23 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 N23 over Stream carry?

About 720 vehicles per day (2018 count), of which roughly 17% are trucks.

How long is N23 over Stream?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns N23 over Stream?

It is owned by the State Highway Agency.