US Bridges

County Road 429 over Buffalo Creek

Fair

Dawson County, Nebraska · 1N 8E of Cozad · Structure no. C002414310

Built
1983
42 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Concrete
Length
32 ft
1 main span
Daily traffic
25
2003 count
Owner
County
County Highway Agency

About this bridge

County Road 429 over Buffalo Creek is a concrete channel beam carrying County Road 429 over Buffalo Creek in Dawson 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 25 vehicles a day, projected to reach 42 by 2033. The structure is 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesCounty Road 429
CrossesBuffalo Creek
Location1N 8E of Cozad
RouteCounty Highway 143
CountyDawson County
StateNebraska
Coordinates40.8867, -99.8267
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.6 US tons
Inventory rating36.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2003)
Projected traffic42 by 2033
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 County Road 429 over Buffalo Creek built?

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

What condition is County Road 429 over Buffalo Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does County Road 429 over Buffalo Creek carry?

About 25 vehicles per day (2003 count).

How long is County Road 429 over Buffalo Creek?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 31 ft wide.

Who owns County Road 429 over Buffalo Creek?

It is owned by the County Highway Agency.