The Roosevelt Bridge is a major highway segmental bridge across the St. Lucie River in Stuart, Florida. Carrying U.S. Route 1, it was built to supersede the old Roosevelt Bridge, which had twin parallel drawbridges, one for northbound traffic and the other for southbound. The new bridge, completed in 1996, is raised and much longer than the older twin drawbridges. The southbound span of the old bridge is still functional for road and boat traffic and now carries two-way road traffic for what is now known as Dixie Highway, County Road 707. The new high-level Roosevelt Bridge is approximately one mile long and is made of two three-lane sections running parallel to each other. The northbound bridge was completed first, and housed two lanes of both north and south-bound traffic until the second bridge was finished. Because of high traffic volume and visibility, the Roosevelt Bridge is a frequent location for many protests and political campaigning in the area.

The St. Lucie River is a 35-mile-long (56 km) estuary linked to a coastal river system in St. Lucie and Martin counties in the U.S. state of Florida. The St. Lucie River and St. Lucie Estuary are an "ecological jewel" of the Treasure Coast, central to the health and well-being of the surrounding communities. The river is part of the larger Indian River Lagoon system, the most diverse estuarine environment in North America with more than 4,000 plant and animal species, including manatees, oysters, dolphins, sea turtles and seahorses.