A strategic, bridge bundling approach has become the defining factor for a successful, streamlined delivery of the Eleven Bridge Replacements Project in Collier County, Florida. The initiative groups bridges of similar type, location and replacement needs under a single, comprehensive program.
Heading design and supporting procurement, HNTB has utilized the collaborative bridge bundling model to help the County foster a new level of efficiency and cost-effectiveness within infrastructure delivery.
Packaged, Designed and Streamlined
Divided into four procurement packages across three corridors, the project encompasses a network of bridge structures vital to the community’s mobility.
- Package A: CR 846/Immokalee Road (2 Bridges)
- Package B: CR 846/Immokalee Road (3 Bridges) & CR 858/County Line Road (1 Bridge)
- Package C: CR 858/Oil Well Road (4 Bridges)
- Package D: CR 846/Immokalee Road (1 Bridge)
Similar typical sections and span lengths helped facilitate a consistent, expedited approach to designing the replacements. While one structure had unique parameters, HNTB was able to design only three total span lengths and associated beam designs to accommodate the other 10 bridges. These designs have not only introduced economies of scale for the County but have helped facilitate construction activities as well.
Project Considerations Times Eleven
Environmental considerations were paramount, with HNTB's environmental team performing extensive species surveys and collaborating closely with permitting authorities and Collier County to secure necessary approvals.
The incorporation of prestressed concrete piles enhanced foundation longevity, while safety measures such as paved shoulders, crash-tested traffic railings and improved guardrails were integrated to elevate roadway safety standards.
Prioritizing smooth traffic flow and ensuring a secure work zone for workers and motorists was another top priority at each location, reflecting the program’s commitment to safety and efficiency.
Recognizing the variables across eleven locations and the close proximity to commercial and community property, HNTB recommended expanding public involvement methods to engage stakeholders, including the City of Immokalee, Immokalee Regional Airport, the agricultural community, local businesses, residents and elected officials.
A Solution Tested and Proven
A testament to the collaborative infrastructure approach, the Eleven Bridge Replacements bridge bundling project is providing a streamlined, holistic solution that benefits client and community. Upon completion, a new network of bridges will restore mobility and safety for Collier County motorists.
Location: Collier County, FL
Client: Collier County
Services: Final and post design services
