US Bridges

N4/N105 over Long Branch Creek

Fair

Richardson County, Nebraska · 1W Humboldt · Structure no. S004 20380

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
151 ft
3 main spans
Daily traffic
1,445
2018 count
Owner
State
State Highway Agency

About this bridge

N4/N105 over Long Branch Creek is a prestressed concrete stringer/multi-beam or girder carrying N4/N105 over Long Branch Creek in Richardson County, Nebraska. It was built in 1967, so it is 58 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 1,445 vehicles a day, roughly 9% of them trucks, projected to reach 1,951 by 2038. The structure is 151 ft (46 m) long and 33 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

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CarriesN4/N105
CrossesLong Branch Creek
Location1W Humboldt
RouteState Highway 4
CountyRichardson County
StateNebraska
Coordinates40.1744, -95.9623
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating57.3 US tons
Inventory rating34.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,445 (2018)
Projected traffic1,951 by 2038
Trucks9%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N4/N105 over Long Branch Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is N4/N105 over Long Branch Creek 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/N105 over Long Branch Creek carry?

About 1,445 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is N4/N105 over Long Branch Creek?

The structure is 151 ft (46 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns N4/N105 over Long Branch Creek?

It is owned by the State Highway Agency.