US Bridges

70th Road over Prairie Creek

Good

Hall County, Nebraska · 1.8S 6.7E Cairo · Structure no. C004022720

Built
1988
37 years old
Condition
Good
inspected April 2022
Type
Slab
Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
30
2003 count
Owner
County
County Highway Agency

About this bridge

70th Road over Prairie Creek is a concrete continuous slab carrying 70th Road over Prairie Creek in Hall County, Nebraska. It was built in 1988, so it is 37 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 30 vehicles a day, projected to reach 51 by 2033. The structure is 92 ft (28 m) long and 30 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
Carries70th Road
CrossesPrairie Creek
Location1.8S 6.7E Cairo
RouteCounty Highway 227
CountyHall County
StateNebraska
Coordinates40.9718, -98.4746
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length92 ft (28 m)
Longest span36 ft (11 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2003)
Projected traffic51 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 70th Road over Prairie Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is 70th Road over Prairie 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 April 2022.

How much traffic does 70th Road over Prairie Creek carry?

About 30 vehicles per day (2003 count).

How long is 70th Road over Prairie Creek?

The structure is 92 ft (28 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns 70th Road over Prairie Creek?

It is owned by the County Highway Agency.