US Bridges

120th Ave over Trib. to N. Br.Slate Crk

GoodPosted for load

Sumner County, Kansas · 0.5W of Milton · Structure no. 000960771206540

Built
1988
37 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
25
2013 count
Owner
County
County Highway Agency

About this bridge

120th Ave over Trib. to N. Br.Slate Crk is a steel stringer/multi-beam or girder carrying 120th Ave over Trib. to N. Br.Slate Crk in Sumner County, Kansas. It was built in 1988, so it is 37 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 25 by 2043. The structure is 25 ft (7.6 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries120th Ave
CrossesTrib. to N. Br.Slate Crk
Location0.5W of Milton
RouteCounty Highway 9618
CountySumner County
StateKansas
Coordinates37.43002, -97.78485
Functional classRural Minor 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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.1 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2013)
Projected traffic25 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 120th Ave over Trib. to N. Br.Slate Crk built?

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

What condition is 120th Ave over Trib. to N. Br.Slate Crk 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 120th Ave over Trib. to N. Br.Slate Crk carry?

About 25 vehicles per day (2013 count).

How long is 120th Ave over Trib. to N. Br.Slate Crk?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 25 ft wide.

Who owns 120th Ave over Trib. to N. Br.Slate Crk?

It is owned by the County Highway Agency.