New $330 Million “18‑Mile Stretch” on U.S. Highway 1 Linking Florida City and Key Largo Is Complete

A newly completed $330 million roadway that connects the South Florida mainland with the Florida Keys has reached completion. The project, commonly referred to as the “18‑Mile Stretch,” is a renovated segment of U.S. Highway 1 between Florida City and Key Largo. Construction took nearly seven years to finish, and a formal dedication ceremony marking the end of the work was held on Wednesday.

Purpose and Scope of the Project

The 18‑Mile Stretch represents a major investment in regional transportation infrastructure. Officials have emphasized that the project was undertaken to address longstanding safety concerns, to improve the roadway’s appearance, and to better accommodate both residents and visitors traveling between the mainland and the Florida Keys. While nearly seven years of design and construction were required, the finished corridor is intended to provide a more dependable and comfortable driving experience along this busy stretch of U.S. Highway 1.

Safety Enhancements

Officials highlighted safety as the foremost objective of the project. A continuous concrete median barrier now runs for almost the entire length of the renovated segment. The barrier is painted a Belize blue color at the recommendation of marine life artist Wyland. Its presence is expected to significantly reduce the most severe types of crashes by preventing crossover incidents and limiting head‑on collisions.

Gus Pego, FDOT’s District 6 Secretary, summed up the anticipated impact: “No. 1 is safety and we will be able to eliminate 10 to 14 critical accidents a year.” That estimate underscores the direct safety benefits the median barrier and other corridor improvements are designed to deliver, particularly on a route that has historically seen a mix of local, tourist, and commercial traffic.

Environmental and Aesthetic Considerations

Alongside safety work, officials said the project included a range of environmental and aesthetic improvements intended to complement the natural and cultural character of the region. The design choices, including the color of the median, reflect an effort to balance functional roadway upgrades with sensitivity to the local environment and visual context. Officials described these measures as aimed at protecting nearby habitats and enhancing the overall look and feel of the highway for drivers and passengers.

Benefits for Residents and Visitors

Officials noted the completed roadway is expected to benefit both residents and visitors who rely on this corridor for daily travel and tourism. Project proponents emphasized that improved safety and the upgraded appearance of the route will contribute to a better travel experience, and that the corridor’s enhancements are intended to serve the community’s transportation needs for years to come.

Looking Ahead

The completion of the 18‑Mile Stretch marks the conclusion of a major public infrastructure effort that spanned several years and substantial investment. With the dedication ceremony now concluded, focus will shift to the continued operation and maintenance of the upgraded corridor. Officials and community members will monitor the road’s performance to ensure the improvements deliver the intended safety, environmental, and aesthetic outcomes.

The new section of U.S. Highway 1 stands as one of the region’s recent large-scale transportation projects, combining engineering features aimed at reducing critical accidents with design elements intended to respect the visual and environmental qualities of the Keys. As drivers begin to use the renovated stretch, transportation officials will be watching to confirm that the anticipated reductions in severe crashes and enhancements to the travel experience come to fruition.