21st Street over Naismith Creek
GoodDouglas County, Kansas · 21st Street & Naismith DR · Structure no. 515350230000004
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected November 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 2,914
- 1995 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
21st Street over Naismith Creek is a prestressed concrete tee beam carrying 21st Street over Naismith Creek in Douglas County, Kansas. It was built in 1992, so it is 33 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,914 vehicles a day, roughly 1% of them trucks, projected to reach 3,002 by 2044. The structure is 40 ft (12.3 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 21st Street over Naismith Creek built?
It was built in 1992, making it 33 years old in 2025.
What condition is 21st Street over Naismith 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 Street over Naismith Creek carry?
About 2,914 vehicles per day (1995 count), of which roughly 1% are trucks.
How long is 21st Street over Naismith Creek?
The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.5 m) and a deck 54 ft wide.
Who owns 21st Street over Naismith Creek?
It is owned by the City or Municipal Highway Agency.