US Bridges

US20 over Big Bordeaux Creek

Good

Dawes County, Nebraska · 3E Chadron · Structure no. S020 06284

Built
1992
33 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
2,105
2018 count
Owner
State
State Highway Agency

About this bridge

US20 over Big Bordeaux Creek is a concrete culvert carrying US20 over Big Bordeaux Creek in Dawes County, Nebraska. It was built in 1992, so it is 33 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 2,105 vehicles a day, roughly 8% of them trucks, projected to reach 2,842 by 2038. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 12.4 mi (20 km).

CarriesUS20
CrossesBig Bordeaux Creek
Location3E Chadron
RouteU.S. Route 20
Coordinates42.8261, -102.9358
Functional classRural Principal Arterial - Other

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.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.8 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 traffic2,105 (2018)
Projected traffic2,842 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemYes

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 US20 over Big Bordeaux Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is US20 over Big Bordeaux 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 May 2024.

How much traffic does US20 over Big Bordeaux Creek carry?

About 2,105 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is US20 over Big Bordeaux Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns US20 over Big Bordeaux Creek?

It is owned by the State Highway Agency.