US Bridges

Local 10-21-1 over Slate Creek

Good

Sumner County, Kansas · 1.0N 1.1E Conway Springs · Structure no. 000960789206580

Built
2016
9 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
10
2013 count
Owner
County
County Highway Agency

About this bridge

Local 10-21-1 over Slate Creek is a concrete continuous slab carrying Local 10-21-1 over Slate Creek in Sumner County, Kansas. It was built in 2016, so it is 9 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 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 10 vehicles a day, projected to reach 15 by 2043. The structure is 102 ft (31.2 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal 10-21-1
CrossesSlate Creek
Location1.0N 1.1E Conway Springs
RouteCounty Highway 1677
CountySumner County
StateKansas
Coordinates37.40193, -97.62054
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating69.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.2 m)
Longest span40 ft (12.1 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 traffic10 (2013)
Projected traffic15 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 Local 10-21-1 over Slate Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Local 10-21-1 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 Local 10-21-1 over Slate Creek carry?

About 10 vehicles per day (2013 count).

How long is Local 10-21-1 over Slate Creek?

The structure is 102 ft (31.2 m) long with a longest span of 40 ft (12.1 m) and a deck 30 ft wide.

Who owns Local 10-21-1 over Slate Creek?

It is owned by the County Highway Agency.