US Bridges

Diamond Rd. over Stoney Brook

GoodPosted for load

Marion County, Kansas · 4.5W 3.9S of Hillsboro · Structure no. 000570825005349

Built
1978
47 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
45
2020 count
Owner
County
County Highway Agency

About this bridge

Diamond Rd. over Stoney Brook is a concrete culvert carrying Diamond Rd. over Stoney Brook in Marion County, Kansas. It was built in 1978, so it is 47 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 45 vehicles a day, projected to reach 54 by 2044. The structure is 45 ft (13.7 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDiamond Rd.
CrossesStoney Brook
Location4.5W 3.9S of Hillsboro
RouteCounty Highway 5701
CountyMarion County
StateKansas
Coordinates38.29047, -97.298
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.4 US tons
Inventory rating17 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length45 ft (13.7 m)
Longest span14 ft (4.2 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic45 (2020)
Projected traffic54 by 2044
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 Diamond Rd. over Stoney Brook built?

It was built in 1978, making it 47 years old in 2025.

What condition is Diamond Rd. over Stoney Brook 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 December 2024.

How much traffic does Diamond Rd. over Stoney Brook carry?

About 45 vehicles per day (2020 count).

How long is Diamond Rd. over Stoney Brook?

The structure is 45 ft (13.7 m) long with a longest span of 14 ft (4.2 m) and a deck 27 ft wide.

Who owns Diamond Rd. over Stoney Brook?

It is owned by the County Highway Agency.