US Bridges

Minor 470-795.3 over Smoky Hill River

Good

Saline County, Kansas · 2.0N 1.5E of Mentor · Structure no. 000850795304700

Built
1984
41 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
242 ft
3 main spans
Daily traffic
554
2019 count
Owner
County
County Highway Agency

About this bridge

Minor 470-795.3 over Smoky Hill River is a prestressed concrete continuous stringer/multi-beam or girder carrying Minor 470-795.3 over Smoky Hill River in Saline County, Kansas. It was built in 1984, so it is 41 years old, younger than the Kansas average of 52.8 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 554 vehicles a day, roughly 6% of them trucks, projected to reach 676 by 2043. The structure is 242 ft (73.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMinor 470-795.3
CrossesSmoky Hill River
Location2.0N 1.5E of Mentor
RouteCounty Highway 8512
StateKansas
Coordinates38.76891, -97.57001
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.7 US tons
Inventory rating34.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length242 ft (73.9 m)
Longest span90 ft (27.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic554 (2019)
Projected traffic676 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Minor 470-795.3 over Smoky Hill River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Minor 470-795.3 over Smoky Hill River 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 March 2023.

How much traffic does Minor 470-795.3 over Smoky Hill River carry?

About 554 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Minor 470-795.3 over Smoky Hill River?

The structure is 242 ft (73.9 m) long with a longest span of 90 ft (27.4 m) and a deck 30 ft wide.

Who owns Minor 470-795.3 over Smoky Hill River?

It is owned by the County Highway Agency.