US Bridges

310th Ave over Shell Creek

Good

Boone County, Nebraska · 5.5E 7.4N Albion · Structure no. C000634325

Built
1935
90 years old, rebuilt 1999
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
10
2003 count
Owner
County
County Highway Agency

About this bridge

310th Ave over Shell Creek is a prestressed concrete tee beam carrying 310th Ave over Shell Creek in Boone County, Nebraska. It was built in 1935 and reconstructed in 1999, 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 10 vehicles a day, projected to reach 17 by 2041. The structure is 51 ft (15.5 m) long and 27 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Carries310th Ave
CrossesShell Creek
Location5.5E 7.4N Albion
RouteCounty Highway 343
Coordinates41.8066, -97.8908
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic17 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 310th Ave over Shell Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1999.

What condition is 310th Ave over Shell 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 2024.

How much traffic does 310th Ave over Shell Creek carry?

About 10 vehicles per day (2003 count).

How long is 310th Ave over Shell Creek?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns 310th Ave over Shell Creek?

It is owned by the County Highway Agency.