Mo 21 N over Crd Hayden RD
GoodJefferson County, Missouri · S 23 T 41 N R 4 E · Structure no. 32091
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 9,871
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 21 N over Crd Hayden RD is a prestressed concrete stringer/multi-beam or girder carrying Mo 21 N over Crd Hayden RD in Jefferson County, Missouri. It was built in 2007, so it is 18 years old, younger than the Missouri average of 45.1 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 9,871 vehicles a day, roughly 3% of them trucks, projected to reach 18,261 by 2044. The structure is 80 ft (24.4 m) long and 41 ft wide. If it were closed, the detour would be 2.5 mi (4 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 21 N over Crd Hayden RD built?
It was built in 2007, making it 18 years old in 2025.
What condition is Mo 21 N over Crd Hayden RD 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 December 2024.
How much traffic does Mo 21 N over Crd Hayden RD carry?
About 9,871 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Mo 21 N over Crd Hayden RD?
The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 41 ft wide.
Who owns Mo 21 N over Crd Hayden RD?
It is owned by the State Highway Agency.