US Bridges

21st over Elm Creek

Good

Jefferson County, Kansas · 0.4N 7.5W of Perry · Structure no. 000441013504264

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

21st over Elm Creek is a concrete continuous slab carrying 21st over Elm Creek in Jefferson County, Kansas. It was built in 2007, so it is 18 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 25 vehicles a day, projected to reach 25 by 2040. The structure is 142 ft (43.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries21st
CrossesElm Creek
Location0.4N 7.5W of Perry
RouteCounty Highway 0
StateKansas
Coordinates39.07832, -95.52851
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating99.3 US tons
Inventory rating59.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.4 m)
Longest span56 ft (17 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2040
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$191,000 (2032 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 21st over Elm Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is 21st over Elm 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 November 2024.

How much traffic does 21st over Elm Creek carry?

About 25 vehicles per day (2022 count).

How long is 21st over Elm Creek?

The structure is 142 ft (43.4 m) long with a longest span of 56 ft (17 m) and a deck 28 ft wide.

Who owns 21st over Elm Creek?

It is owned by the County Highway Agency.