SR-429 SB over Longwood-Markham RD
GoodSeminole County, Florida · SR-429 SB - Markham RD · Structure no. 770099
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 360 ft
- 2 main spans
- Daily traffic
- 1,500
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
SR-429 SB over Longwood-Markham RD is a prestressed concrete stringer/multi-beam or girder carrying SR-429 SB over Longwood-Markham RD in Seminole County, Florida. It was built in 2022, so it is 3 years old, younger than the Florida average of 41.3 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 1,500 vehicles a day, roughly 10% of them trucks, projected to reach 3,000 by 2044. The structure is 360 ft (109.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR-429 SB over Longwood-Markham RD built?
It was built in 2022, making it 3 years old in 2025.
What condition is SR-429 SB over Longwood-Markham 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 June 2024.
How much traffic does SR-429 SB over Longwood-Markham RD carry?
About 1,500 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is SR-429 SB over Longwood-Markham RD?
The structure is 360 ft (109.7 m) long with a longest span of 179 ft (54.7 m) and a deck 43 ft wide.
Who owns SR-429 SB over Longwood-Markham RD?
It is owned by the State Highway Agency.