US Bridges

County Highway over M Br Big Nemaha River

Good

Johnson County, Nebraska · 2.5W of Sterling · Structure no. C004910520

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
232 ft
3 main spans
Daily traffic
50
2010 count
Owner
County
County Highway Agency

About this bridge

County Highway over M Br Big Nemaha River is a prestressed concrete continuous stringer/multi-beam or girder carrying County Highway over M Br Big Nemaha River in Johnson County, Nebraska. It was built in 2009, so it is 16 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 50 vehicles a day, roughly 15% of them trucks, projected to reach 85 by 2033. The structure is 232 ft (70.7 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesM Br Big Nemaha River
Location2.5W of Sterling
RouteCounty Highway 105
CountyJohnson County
StateNebraska
Coordinates40.46, -96.425
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span105 ft (32 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2010)
Projected traffic85 by 2033
Trucks15%
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 County Highway over M Br Big Nemaha River built?

It was built in 2009, making it 16 years old in 2025.

What condition is County Highway over M Br Big Nemaha River 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 September 2023.

How much traffic does County Highway over M Br Big Nemaha River carry?

About 50 vehicles per day (2010 count), of which roughly 15% are trucks.

How long is County Highway over M Br Big Nemaha River?

The structure is 232 ft (70.7 m) long with a longest span of 105 ft (32 m) and a deck 31 ft wide.

Who owns County Highway over M Br Big Nemaha River?

It is owned by the County Highway Agency.