Old Hwy. 37 over So.Prong Alafia River
GoodPolk County, Florida · 2.3 MI North of CR-630 · Structure no. 160212
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected July 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 225 ft
- 6 main spans
- Daily traffic
- 350
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Old Hwy. 37 over So.Prong Alafia River is a prestressed concrete slab carrying Old Hwy. 37 over So.Prong Alafia River in Polk County, Florida. It was built in 1983, so it is 42 years old, older 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 350 vehicles a day, roughly 14% of them trucks, projected to reach 608 by 2042. The structure is 225 ft (68.6 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old Hwy. 37 over So.Prong Alafia River built?
It was built in 1983, making it 42 years old in 2025.
What condition is Old Hwy. 37 over So.Prong Alafia River 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 July 2023.
How much traffic does Old Hwy. 37 over So.Prong Alafia River carry?
About 350 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is Old Hwy. 37 over So.Prong Alafia River?
The structure is 225 ft (68.6 m) long with a longest span of 38 ft (11.6 m) and a deck 43 ft wide.
Who owns Old Hwy. 37 over So.Prong Alafia River?
It is owned by the County Highway Agency.