US Bridges

W 21st ST N over Rock Creek

Good

Sedgwick County, Kansas · 21STN 0.7 E of 391STW · Structure no. 000870771706140

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
59 ft
4 main spans
Daily traffic
445
2018 count
Owner
County
County Highway Agency

About this bridge

W 21st ST N over Rock Creek is a concrete culvert carrying W 21st ST N over Rock Creek in Sedgwick County, Kansas. It was built in 2023, so it is 2 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 445 vehicles a day, roughly 10% of them trucks, projected to reach 540 by 2043. The structure is 59 ft (18.1 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesW 21st ST N
CrossesRock Creek
Location21STN 0.7 E of 391STW
RouteCounty Highway 8754
CountySedgwick County
StateKansas
Coordinates37.71986, -97.77727
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating63.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHL 93
Structure length59 ft (18.1 m)
Longest span14 ft (4.2 m)
Deck width61 ft (18.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic445 (2018)
Projected traffic540 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 W 21st ST N over Rock Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is W 21st ST N over Rock 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 2023.

How much traffic does W 21st ST N over Rock Creek carry?

About 445 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is W 21st ST N over Rock Creek?

The structure is 59 ft (18.1 m) long with a longest span of 14 ft (4.2 m) and a deck 61 ft wide.

Who owns W 21st ST N over Rock Creek?

It is owned by the County Highway Agency.