US Bridges

N31 over Stream

Good

Washington County, Nebraska · JCT US30/N31 3.9S · Structure no. S031 03250

Built
1935
90 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,885
2018 count
Owner
State
State Highway Agency

About this bridge

N31 over Stream is a concrete culvert carrying N31 over Stream in Washington 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 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 2,885 vehicles a day, roughly 7% of them trucks, projected to reach 4,039 by 2038. The structure is 23 ft (7 m) long. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN31
CrossesStream
LocationJCT US30/N31 3.9S
RouteState Highway 31
Coordinates41.3991, -96.2328
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 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 adequacy6: Equal to 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 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 traffic2,885 (2018)
Projected traffic4,039 by 2038
Trucks7%
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 N31 over Stream built?

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

What condition is N31 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 February 2024.

How much traffic does N31 over Stream carry?

About 2,885 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is N31 over Stream?

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

Who owns N31 over Stream?

It is owned by the State Highway Agency.