US Bridges

N4/N105 over Round Grove Creek

Fair

Richardson County, Nebraska · 3W Humboldt · Structure no. S004 20168

Built
1927
98 years old, rebuilt 2011
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
1,445
2018 count
Owner
State
State Highway Agency

About this bridge

N4/N105 over Round Grove Creek is a concrete culvert carrying N4/N105 over Round Grove Creek in Richardson County, Nebraska. It was built in 1927 and reconstructed in 2011, so it is 98 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 25 ft (7.6 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesN4/N105
CrossesRound Grove Creek
Location3W Humboldt
RouteState Highway 4
CountyRichardson County
StateNebraska
Coordinates40.1745, -96.0022
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 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 length25 ft (7.6 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 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N4/N105 over Round Grove Creek built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 2011.

What condition is N4/N105 over Round Grove 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 Round Grove Creek carry?

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

How long is N4/N105 over Round Grove Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns N4/N105 over Round Grove Creek?

It is owned by the State Highway Agency.