US Bridges

US34 over Macklin Canyon

Fair

Hitchcock County, Nebraska · 5W Trenton · Structure no. S034 05605

Built
1950
75 years old, rebuilt 1990
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
213 ft
3 main spans
Daily traffic
1,440
2018 count
Owner
State
State Highway Agency

About this bridge

US34 over Macklin Canyon is a prestressed concrete continuous stringer/multi-beam or girder carrying US34 over Macklin Canyon in Hitchcock County, Nebraska. It was built in 1950 and reconstructed in 1990, so it is 75 years old, older 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 6 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 1,440 vehicles a day, roughly 13% of them trucks, projected to reach 1,872 by 2038. The structure is 213 ft (64.9 m) long and 46 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesUS34
CrossesMacklin Canyon
Location5W Trenton
RouteU.S. Route 34
Coordinates40.1763, -101.104
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating27.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length213 ft (64.9 m)
Longest span84 ft (25.6 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,440 (2018)
Projected traffic1,872 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 US34 over Macklin Canyon built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1990.

What condition is US34 over Macklin Canyon 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 April 2024.

How much traffic does US34 over Macklin Canyon carry?

About 1,440 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is US34 over Macklin Canyon?

The structure is 213 ft (64.9 m) long with a longest span of 84 ft (25.6 m) and a deck 46 ft wide.

Who owns US34 over Macklin Canyon?

It is owned by the State Highway Agency.