US Bridges

310th ST over Plum Creek

Good

Boone County, Nebraska · 1S 9.5E Primrose · Structure no. C000624420

Built
1983
42 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
20
2003 count
Owner
County
County Highway Agency

About this bridge

310th ST over Plum Creek is a concrete culvert carrying 310th ST over Plum Creek in Boone County, Nebraska. It was built in 1983, so it is 42 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 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 20 vehicles a day, projected to reach 34 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Carries310th ST
CrossesPlum Creek
Location1S 9.5E Primrose
RouteCounty Highway 244
Coordinates41.6108, -98.052
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
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 length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2003)
Projected traffic34 by 2041
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty 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 310th ST over Plum Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is 310th ST over Plum Creek 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 December 2023.

How much traffic does 310th ST over Plum Creek carry?

About 20 vehicles per day (2003 count).

How long is 310th ST over Plum Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns 310th ST over Plum Creek?

It is owned by the County Highway Agency.