US Bridges

21st Street North over Middle Branch Gypsum Cr.

Fair

Sedgwick County, Kansas · 21 St. at Redbrush · Structure no. 430400876500070

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
38 ft
4 main spans
Daily traffic
14,000
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

21st Street North over Middle Branch Gypsum Cr. is a concrete culvert carrying 21st Street North over Middle Branch Gypsum Cr. in Sedgwick County, Kansas. It was built in 1987, so it is 38 years old, younger 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 5 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 21,000 by 2039. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries21st Street North
CrossesMiddle Branch Gypsum Cr.
Location21 St. at Redbrush
RouteCity Street 6500
CountySedgwick County
StateKansas
Coordinates37.72301, -97.23629
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 20
Structure length38 ft (11.5 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic14,000 (2006)
Projected traffic21,000 by 2039
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Middle Branch Gypsum Cr. built?

It was built in 1987, making it 38 years old in 2025.

What condition is 21st Street North over Middle Branch Gypsum Cr. 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 Middle Branch Gypsum Cr. carry?

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

How long is 21st Street North over Middle Branch Gypsum Cr.?

The structure is 38 ft (11.5 m) long with a longest span of 9 ft (2.7 m).

Who owns 21st Street North over Middle Branch Gypsum Cr.?

It is owned by the City or Municipal Highway Agency.