US Bridges

NW 120th ST over Diamond Creek

Good

Butler County, Kansas · 4.3E 4.0N of Potwin · Structure no. 000080863305760

Built
2008
17 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

NW 120th ST over Diamond Creek is a concrete culvert carrying NW 120th ST over Diamond Creek in Butler County, Kansas. It was built in 2008, so it is 17 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 50 vehicles a day, projected to reach 50 by 2045. The structure is 29 ft (8.9 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNW 120th ST
CrossesDiamond Creek
Location4.3E 4.0N of Potwin
RouteCounty Highway 0
CountyButler County
StateKansas
Coordinates37.99883, -96.9468
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating70.9 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span9 ft (2.7 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2023)
Projected traffic50 by 2045
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 NW 120th ST over Diamond Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is NW 120th ST over Diamond 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 July 2024.

How much traffic does NW 120th ST over Diamond Creek carry?

About 50 vehicles per day (2023 count).

How long is NW 120th ST over Diamond Creek?

The structure is 29 ft (8.9 m) long with a longest span of 9 ft (2.7 m) and a deck 28 ft wide.

Who owns NW 120th ST over Diamond Creek?

It is owned by the County Highway Agency.