Project

First Coast Expressway

East of CR 2209 to East of CR 16A, St. - Johns County, FL

The First Coast Expressway project, extending from east of County Road (CR) 2209 to east of CR 16A in St. Johns County, is a major infrastructure development designed to improve regional mobility and enhance transportation efficiency. This segment involves the construction of a new four-lane, limited-access toll facility, part of the larger First Coast Expressway, which aims to alleviate congestion and improve travel times in the growing region.

The scope of the First Coast Expressway project encompasses various construction tasks designed to support a robust and safe roadway for both vehicles and pedestrians. The key components of the project include:

New Four-Lane Toll Facility:

The primary feature of the project is the creation of a new four-lane, limited-access toll road. This toll facility is designed to provide efficient traffic flow, reduce congestion on parallel routes, and improve access to the surrounding areas in St. Johns County. The facility will help accommodate the region's growing population and economic activity, offering faster and more direct routes for both local and regional traffic.

Milling and Resurfacing:

Milling and resurfacing work was completed to remove and replace the damaged or outdated road surfaces, providing a smooth and durable road that can withstand heavy traffic loads. This process also improved the quality and longevity of the road surface, ensuring better driving conditions for the future.

Earthwork and Subsoil Excavation:

Extensive earthwork and subsoil excavation were required to prepare the site for construction. This involved moving large quantities of soil to create a stable foundation for the road, bridges, and other infrastructure elements.

Base Work and Shoulder Treatment:

Base work was performed to lay the foundation for the roadway, followed by shoulder treatment to stabilize the edges of the road and improve safety. Properly treated shoulders also provide safe zones for vehicles in case of emergencies.

Drainage Improvements:

The project included significant drainage improvements to manage stormwater and prevent flooding. This work included the installation of drainage pipes, culverts, and other water management systems to protect the roadway and surrounding environment from water damage.

Curb and Gutter Installation:

Curb and gutter systems were installed along the new expressway to direct water runoff, improve the road's durability, and enhance the road's aesthetic appeal.

Traffic Signals and Lighting:

New traffic signals and lighting were installed to improve safety and visibility for drivers and pedestrians along the expressway. These systems also contribute to better traffic management and ensure smooth vehicle flow, especially at intersections and access points.

Highway Signing and Guardrail:

The addition of highway signs and guardrails helps improve driver awareness, guide traffic, and protect vehicles from potential hazards. Guardrails are also installed along sections of the expressway to prevent vehicles from leaving the roadway and ensure the safety of motorists.

Box Culverts and Bridges:

The construction of box culverts and bridges was necessary to allow for the proper flow of water beneath the expressway, as well as to support the passage of vehicles over natural or man-made obstacles. These structures are essential for maintaining the roadway’s stability and ensuring smooth operations over time.

MSE Walls (Mechanically Stabilized Earth Walls):

MSE walls were constructed to support the roadway and protect it from erosion. These walls provide structural stability for embankments and slopes along the expressway, contributing to the safety and durability of the project.

Sidewalks and Bicycle Path:

To promote multi-modal transportation and enhance pedestrian and cyclist safety, sidewalks and a bicycle path were included as part of the project. These features ensure safe and convenient access for pedestrians and cyclists while providing connectivity to surrounding areas.

Intelligent Transportation Systems (ITS):

The project integrated Intelligent Transportation Systems (ITS) to provide real-time traffic management and information. ITS technologies, including sensors and communication systems, will monitor traffic conditions and adjust signals and signage to optimize traffic flow and improve safety.

Tolling Infrastructure:

As a limited-access toll facility, the project included the necessary infrastructure to implement tolling systems. This tolling infrastructure is crucial for the management and maintenance of the expressway, ensuring its long-term viability and supporting ongoing operational costs.

Challenges and Considerations

One of the primary challenges in this project is managing the integration of a tolling system and minimizing disruptions during construction. Additionally, coordinating the multiple components of the infrastructure—such as drainage, traffic signals, and multi-modal pathways—required careful planning and management to ensure all systems worked harmoniously.

Given the significant earthwork and excavation required, as well as the need for large-scale structures such as box culverts and bridges, this project also required strong coordination with environmental agencies to minimize the impact on the surrounding area.

Outcome and Conclusion

The completion of the First Coast Expressway segment from east of CR 2209 to east of CR 16A will significantly improve transportation efficiency in St. Johns County. The new four-lane toll facility is expected to reduce congestion, increase access to key areas, and support the growing population and economy of the region.

With a comprehensive range of improvements, including drainage, lighting, traffic signals, and multi-modal infrastructure, the project delivers a safer, more modern transportation corridor for both motorists and pedestrians. The addition of Intelligent Transportation Systems will allow for real-time traffic monitoring, further improving traffic flow and safety.

The First Coast Expressway project is a significant step forward in regional infrastructure development. By providing critical roadway improvements, enhancing traffic management, and integrating new safety and mobility features, this project will contribute to a more connected and efficient transportation network in St. Johns County and the broader First Coast region.

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