US Bridges

N103 over Big Blue River Tributary

Good

Saline County, Nebraska · 2S Wilber · Structure no. S103 03039

Built
1982
43 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
1,205
2018 count
Owner
State
State Highway Agency

About this bridge

N103 over Big Blue River Tributary is a concrete culvert carrying N103 over Big Blue River Tributary in Saline County, Nebraska. It was built in 1982, so it is 43 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 1,205 vehicles a day, roughly 12% of them trucks, projected to reach 1,627 by 2038. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN103
CrossesBig Blue River Tributary
Location2S Wilber
RouteState Highway 103
Coordinates40.4473, -96.961
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 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 adequacy8: Equal to present desirable 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 spans3
Design loadUnknown
Structure length33 ft (10.1 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 traffic1,205 (2018)
Projected traffic1,627 by 2038
Trucks12%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N103 over Big Blue River Tributary built?

It was built in 1982, making it 43 years old in 2025.

What condition is N103 over Big Blue River Tributary 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 July 2024.

How much traffic does N103 over Big Blue River Tributary carry?

About 1,205 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is N103 over Big Blue River Tributary?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns N103 over Big Blue River Tributary?

It is owned by the State Highway Agency.