US Bridges

29th Street North over Little Arkansas River

Fair

Sedgwick County, Kansas · 29th ST at Cromwell · Structure no. 530400870LAR110

Built
1948
77 years old, rebuilt 1991
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
328 ft
5 main spans
Daily traffic
7,000
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

29th Street North over Little Arkansas River is a prestressed concrete continuous tee beam carrying 29th Street North over Little Arkansas River in Sedgwick County, Kansas. It was built in 1948 and reconstructed in 1991, so it is 77 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 7,000 vehicles a day, roughly 4% of them trucks, projected to reach 8,500 by 2039. The structure is 328 ft (100 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries29th Street North
CrossesLittle Arkansas River
Location29th ST at Cromwell
RouteCity Street 0
StateKansas
Coordinates37.73755, -97.35703
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating17.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length328 ft (100 m)
Longest span75 ft (22.8 m)
Deck width77 ft (23.5 m)
Roadway width49 ft (15 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic7,000 (2006)
Projected traffic8,500 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 29th Street North over Little Arkansas River built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1991.

What condition is 29th Street North over Little 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 29th Street North over Little Arkansas River carry?

About 7,000 vehicles per day (2006 count), of which roughly 4% are trucks.

How long is 29th Street North over Little Arkansas River?

The structure is 328 ft (100 m) long with a longest span of 75 ft (22.8 m) and a deck 77 ft wide.

Who owns 29th Street North over Little Arkansas River?

It is owned by the City or Municipal Highway Agency.