US Bridges

Bb Road (rs 115) over Magnani Canyon

Good

Cheyenne County, Kansas · 13.0N 9.5E of St. Francis · Structure no. 000000000120085

Built
1987
38 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
15
2020 count
Owner
County
County Highway Agency

About this bridge

Bb Road (rs 115) over Magnani Canyon is a steel stringer/multi-beam or girder carrying Bb Road (rs 115) over Magnani Canyon in Cheyenne County, Kansas. It was built in 1987, so it is 38 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 15 vehicles a day, projected to reach 25 by 2045. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesBb Road (rs 115)
CrossesMagnani Canyon
Location13.0N 9.5E of St. Francis
RouteCounty Highway 115
CountyCheyenne County
StateKansas
Coordinates39.96017, -101.62608
Functional classRural Major 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 inspectionJanuary 2025
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 alignment7: Better than present minimum criteria
Operating rating71.2 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length28 ft (8.5 m)
Longest span26 ft (8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15 (2020)
Projected traffic25 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bb Road (rs 115) over Magnani Canyon built?

It was built in 1987, making it 38 years old in 2025.

What condition is Bb Road (rs 115) over Magnani Canyon 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 January 2025.

How much traffic does Bb Road (rs 115) over Magnani Canyon carry?

About 15 vehicles per day (2020 count).

How long is Bb Road (rs 115) over Magnani Canyon?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (8 m) and a deck 24 ft wide.

Who owns Bb Road (rs 115) over Magnani Canyon?

It is owned by the County Highway Agency.