US Bridges

Rs 640 5-4-2 over North Branch Slate Creek

GoodPosted for load

Sumner County, Kansas · 0.2E 0.9N of Milton · Structure no. 000000000960260

Built
1960
65 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
745
2013 count
Owner
County
County Highway Agency

About this bridge

Rs 640 5-4-2 over North Branch Slate Creek is a concrete culvert carrying Rs 640 5-4-2 over North Branch Slate Creek in Sumner County, Kansas. It was built in 1960, so it is 65 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 745 vehicles a day, roughly 1% of them trucks, projected to reach 835 by 2043. The structure is 25 ft (7.7 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRs 640 5-4-2
CrossesNorth Branch Slate Creek
Location0.2E 0.9N of Milton
RouteCounty Highway 640
StateKansas
Coordinates37.44464, -97.77002
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating24.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length25 ft (7.7 m)
Longest span8 ft (2.4 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic745 (2013)
Projected traffic835 by 2043
Trucks1%
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 640 5-4-2 over North Branch Slate Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Rs 640 5-4-2 over North Branch 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 640 5-4-2 over North Branch Slate Creek carry?

About 745 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Rs 640 5-4-2 over North Branch Slate Creek?

The structure is 25 ft (7.7 m) long with a longest span of 8 ft (2.4 m) and a deck 26 ft wide.

Who owns Rs 640 5-4-2 over North Branch Slate Creek?

It is owned by the County Highway Agency.