Bear Cut Bridge PD&E Study
Location: Miami-Dade County, Florida
Project Type: Bridge rehabilitation and/or replacement study
Status: Under study (PD&E phase)
Primary Agencies: Miami-Dade County Department of Transportation and Public Works (DTPW); Florida Department of Transportation (FDOT); Federal Highway Administration (FHWA)
Aerial view of Bear Cut Bridge
Aerial view of Bear Cut Bridge
Overview
The Bear Cut Bridge Project is a transportation study focused on evaluating options for the rehabilitation and/or replacement of the existing Bear Cut Bridge along the Rickenbacker Causeway. The bridge serves as the only mainland access route to the Village of Key Biscayne and functions as a designated emergency evacuation corridor. The project is being evaluated through a Project Development and Environment (PD&E) Study.
Historic Context
The Bear Cut Bridge is part of the Rickenbacker Causeway, a transportation corridor constructed in the mid-20th century to connect mainland Miami with Virginia Key and Key Biscayne. The causeway and bridge were developed as part of broader regional efforts to expand access to coastal and barrier island areas, supporting residential growth, recreation, and tourism.
The original Bear Cut Bridge opened in 1954, replacing an earlier ferry-based connection and establishing a permanent roadway link across Bear Cut, a tidal channel separating Virginia Key and Key Biscayne. The bridge was designed to accommodate vehicular traffic while allowing maritime navigation through the channel, reflecting mid-century infrastructure priorities and engineering standards.
Over time, the Bear Cut Bridge became a critical component of Miami-Dade County’s transportation network. In addition to serving daily commuters and visitors, the bridge functions as the sole mainland access route and designated evacuation corridor for the Village of Key Biscayne. As traffic volumes increased and infrastructure aged, the bridge underwent periodic maintenance and rehabilitation to extend its service life.
Today, the Bear Cut Bridge is recognized as both a vital transportation asset and a legacy infrastructure element. Its age, strategic importance, and exposure to coastal and environmental conditions have contributed to the initiation of formal studies evaluating long-term rehabilitation or replacement options.
Scope & Intent
The scope of the Bear Cut Bridge Project includes assessing the long-term structural, operational, and safety needs of the existing bridge and its surrounding corridor. The study examines how the bridge functions within the regional transportation network and its role in emergency access, daily commuting, and recreational travel.
The intent of the PD&E Study is to identify feasible alternatives that address infrastructure condition, traffic operations, and user safety while considering environmental, social, economic, and cultural factors. The project is structured to support informed decision-making prior to any design or construction phase.
Key Components
Evaluation of “no-build,” rehabilitation, and replacement alternatives
Assessment of alternate bridge alignments, vertical profiles, and structural types
Consideration of traffic operations and roadway safety improvements
Review of potential enhancements for bicycle and pedestrian facilities
Environmental analysis in accordance with National Environmental Policy Act (NEPA) requirements
Process & Status
The Bear Cut Bridge Project is currently in the PD&E Study phase, which began in October 2024 and is anticipated to conclude in March 2027. The study is being conducted by Miami-Dade County DTPW with technical support from FDOT. The Federal Highway Administration serves as the lead federal agency, with FDOT overseeing environmental review and documentation.
Public involvement is a required and ongoing component of the PD&E process. If a build alternative is selected at the conclusion of the study, the project may advance to the design phase, pending approvals and funding. bear-cut-bridge-fact-sheet
Reference Context
Project information is published by the Miami-Dade County Department of Transportation and Public Works as part of an official PD&E Study for the Rickenbacker Causeway Bear Cut Bridge. The study is conducted in coordination with state and federal transportation agencies and includes opportunities for public participation throughout the process.