US Bridges

Rockenham Road over Elm Slough

Good

Pottawatomie County, Kansas · 2.0S 1.5E of Flush · Structure no. 000750917304004

Built
2015
10 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
50
2013 count
Owner
County
County Highway Agency

About this bridge

Rockenham Road over Elm Slough is a steel stringer/multi-beam or girder carrying Rockenham Road over Elm Slough in Pottawatomie County, Kansas. It was built in 2015, so it is 10 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 50 vehicles a day, projected to reach 70 by 2043. The structure is 29 ft (8.8 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRockenham Road
CrossesElm Slough
Location2.0S 1.5E of Flush
RouteCounty Highway 1201
CountyPottawatomie County
StateKansas
Coordinates39.26924, -96.42038
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.9 US tons
Inventory rating52.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2013)
Projected traffic70 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Rockenham Road over Elm Slough built?

It was built in 2015, making it 10 years old in 2025.

What condition is Rockenham Road over Elm Slough 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 August 2023.

How much traffic does Rockenham Road over Elm Slough carry?

About 50 vehicles per day (2013 count).

How long is Rockenham Road over Elm Slough?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns Rockenham Road over Elm Slough?

It is owned by the County Highway Agency.