US Bridges

N8/N50 over Dry Branch

Good

Pawnee County, Nebraska · 4N Dubois · Structure no. S008 12067

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
1,075
2018 count
Owner
State
State Highway Agency

About this bridge

N8/N50 over Dry Branch is a prestressed concrete stringer/multi-beam or girder carrying N8/N50 over Dry Branch in Pawnee County, Nebraska. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,075 vehicles a day, roughly 8% of them trucks, projected to reach 1,451 by 2038. The structure is 105 ft (32 m) long and 45 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

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CarriesN8/N50
CrossesDry Branch
Location4N Dubois
RouteState Highway 8
CountyPawnee County
StateNebraska
Coordinates40.0914, -96.0484
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating35.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length105 ft (32 m)
Longest span105 ft (32 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,075 (2018)
Projected traffic1,451 by 2038
Trucks8%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N8/N50 over Dry Branch built?

It was built in 2023, making it 2 years old in 2025.

What condition is N8/N50 over Dry Branch 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 June 2024.

How much traffic does N8/N50 over Dry Branch carry?

About 1,075 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is N8/N50 over Dry Branch?

The structure is 105 ft (32 m) long with a longest span of 105 ft (32 m) and a deck 45 ft wide.

Who owns N8/N50 over Dry Branch?

It is owned by the State Highway Agency.