US Bridges

N4 over Stream

Fair

Jefferson County, Nebraska · JCT N4/N103 7.1W · Structure no. S004 14054

Built
1935
90 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,015
2018 count
Owner
State
State Highway Agency

About this bridge

N4 over Stream is a concrete culvert carrying N4 over Stream in Jefferson County, Nebraska. It was built in 1935, so it is 90 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 6 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 1,015 vehicles a day, roughly 14% of them trucks, projected to reach 1,472 by 2038. The structure is 23 ft (7 m) long. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesN4
CrossesStream
LocationJCT N4/N103 7.1W
RouteState Highway 4
CountyJefferson County
StateNebraska
Coordinates40.306, -97.0479
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,015 (2018)
Projected traffic1,472 by 2038
Trucks14%
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 N4 over Stream built?

It was built in 1935, making it 90 years old in 2025.

What condition is N4 over Stream 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 August 2024.

How much traffic does N4 over Stream carry?

About 1,015 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is N4 over Stream?

The structure is 23 ft (7 m) long with a longest span of 8 ft (2.4 m).

Who owns N4 over Stream?

It is owned by the State Highway Agency.