US Bridges

US75 over Mill Creek

Fair

Washington County, Nebraska · 4N Fort Calhoun · Structure no. S075 10985

Built
1977
48 years old, rebuilt 1998
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
4,815
2018 count
Owner
State
State Highway Agency

About this bridge

US75 over Mill Creek is a concrete continuous slab carrying US75 over Mill Creek in Washington County, Nebraska. It was built in 1977 and reconstructed in 1998, so it is 48 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 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 4,815 vehicles a day, roughly 9% of them trucks, projected to reach 5,537 by 2038. The structure is 123 ft (37.5 m) long and 47 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesUS75
CrossesMill Creek
Location4N Fort Calhoun
RouteU.S. Route 75
Coordinates41.5015, -96.0595
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating29.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span48 ft (14.6 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,815 (2018)
Projected traffic5,537 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 US75 over Mill Creek built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1998.

What condition is US75 over Mill 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 February 2024.

How much traffic does US75 over Mill Creek carry?

About 4,815 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is US75 over Mill Creek?

The structure is 123 ft (37.5 m) long with a longest span of 48 ft (14.6 m) and a deck 47 ft wide.

Who owns US75 over Mill Creek?

It is owned by the State Highway Agency.