US Bridges

Rs 641 12-21-3 over Slate Creek

GoodPosted for load

Sumner County, Kansas · 1.4E of Conway Springs · Structure no. 000000000960290

Built
1955
70 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
264 ft
4 main spans
Daily traffic
680
2013 count
Owner
County
County Highway Agency

About this bridge

Rs 641 12-21-3 over Slate Creek is a steel continuous stringer/multi-beam or girder carrying Rs 641 12-21-3 over Slate Creek in Sumner County, Kansas. It was built in 1955, so it is 70 years old, older 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. Its operating status is: posted for load restriction.

It carries about 680 vehicles a day, projected to reach 570 by 2043. The structure is 264 ft (80.5 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRs 641 12-21-3
CrossesSlate Creek
Location1.4E of Conway Springs
RouteCounty Highway 641
CountySumner County
StateKansas
Coordinates37.38737, -97.61682
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.7 US tons
Inventory rating16.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length264 ft (80.5 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic680 (2013)
Projected traffic570 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Rs 641 12-21-3 over Slate Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Rs 641 12-21-3 over Slate 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 May 2023.

How much traffic does Rs 641 12-21-3 over Slate Creek carry?

About 680 vehicles per day (2013 count).

How long is Rs 641 12-21-3 over Slate Creek?

The structure is 264 ft (80.5 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns Rs 641 12-21-3 over Slate Creek?

It is owned by the County Highway Agency.