US Bridges

21st Street North over Arkansas River

Fair

Sedgwick County, Kansas · 21st at Westridge · Structure no. 5304008700AR120

Built
1972
53 years old, rebuilt 2009
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
477 ft
6 main spans
Daily traffic
14,000
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

21st Street North over Arkansas River is a concrete continuous tee beam carrying 21st Street North over Arkansas River in Sedgwick County, Kansas. It was built in 1972 and reconstructed in 2009, so it is 53 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 14,000 vehicles a day, roughly 2% of them trucks, projected to reach 16,500 by 2039. The structure is 477 ft (145.4 m) long and 73 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries21st Street North
CrossesArkansas River
Location21st at Westridge
RouteCity Street 0
StateKansas
Coordinates37.72322, -97.38361
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length477 ft (145.4 m)
Longest span85 ft (25.9 m)
Deck width73 ft (22.3 m)
Roadway width59 ft (18 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic14,000 (2006)
Projected traffic16,500 by 2039
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 21st Street North over Arkansas River built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2009.

What condition is 21st Street North over Arkansas River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does 21st Street North over Arkansas River carry?

About 14,000 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is 21st Street North over Arkansas River?

The structure is 477 ft (145.4 m) long with a longest span of 85 ft (25.9 m) and a deck 73 ft wide.

Who owns 21st Street North over Arkansas River?

It is owned by the City or Municipal Highway Agency.