Memorial Causeway over St Johns River Overflow
Putnam County, Florida · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Memorial Causeway over St Johns River Overflow in Putnam County, Florida, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1940, making it 85 years old at the 2025 inventory.
- It carries about 51 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 38 of the 73 inventoried bridges in Putnam County rated fair (52.1%); 2 (2.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2024, on a 14-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (29.6445, -81.61761)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 50 ft |
| Location | at SE US 17 Br/st Johns |
| NBI structure number | 764038 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 14 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Putnam County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 17 (SR 15) over St Johns River | 1977 | 35,000 | Fair |
| US-17 (SR-15) over Satsuma Creek | 1952 | 19,972 | Fair |
| SR-207 over Orange Mills Canal | 2001 | 18,200 | Good |
| SR-207 over Dog Branch | 2001 | 18,200 | Fair |
| SR-20 over Sweetwater Creek | 2000 | 11,964 | Fair |
| US-17 (SR-15) over Pinetree Branch | 1993 | 10,600 | Good |
All bridges nearby: Putnam County, FL bridge conditions · every bridge in Putnam County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.