SR-20 (SR 100) over Water Oak Brook
Flagler County, Florida · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR-20 (SR 100) over Water Oak Brook in Flagler County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1936 and reconstructed in 1996, making it 89 years old at the 2025 inventory.
- It carries about 4,700 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 60 of the 105 inventoried bridges in Flagler County rated good (57.1%); 2 (1.9%) 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 September 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (29.48095, -81.42242)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 42 ft |
| Location | 3.0 Mi W of CR-305 |
| NBI structure number | 730011 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Flagler County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-95 over St. Joe Canal | 1965 | 89,601 | Fair |
| I-95 over Town Center Blvd. | 1965 | 89,601 | Fair |
| I-95 over SR-100 | 2007 | 89,601 | Fair |
| I-95 over Korona Canal | 1964 | 85,500 | Fair |
| I-95 over Pellicer Creek | 2007 | 77,000 | Fair |
| I-95 over Big Mulberry Branch | 1965 | 65,500 | Fair |
All bridges nearby: Flagler County, FL bridge conditions · every bridge in Flagler County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.