Illinois State Beach Park Restoration: Utilizing 3D Technology for Shoreline Construction

Abstract: Introduction
The Illinois Beach State Park Shoreline Restoration Project represents a pioneering initiative undertaken to counteract severe erosion affecting Illinois Beach State Park, the state's last remaining natural shoreline. This $73 million design-build project was executed by the contractor in collaboration with the Illinois Department of Natural Resources and the Capital Development Board, aiming to enhance shoreline resilience and preserve the area's ecological integrity.

Challenges
The project faced the formidable task of restoring approximately 2.2 miles of beachfront, crucial for the ecological preservation of the park. This involved the strategic placement of over 300,000 tons of stone and 430,000 cubic yards of sand within a dynamic marine environment which posed significant logistical challenges. Scheduling and cost management were paramount, given the scale and the environmentally sensitive nature of the project. The contractor had to ensure that all operations were conducted within the stipulated timeframes and budget, while adapting to the unpredictable conditions posed by Lake Michigan.

Innovative Methods
To address these challenges, the project utilized state-of-the-art technologies including 3D GPS machine guidance systems and multibeam sonar imaging. These tools were instrumental in executing precise grading and material placement, essential for the project’s success. The contractor implemented innovative construction methodologies that included:

Machine Grading: Utilized detailed design models to guide the grading equipment, which expedited the construction process and enhanced the precision of the shoreline contours.
Multibeam Sonar: Enabled accurate measurements of underwater structures and the seabed, facilitating a detailed and accurate reality model of the shoreline for better planning and execution.
Unmanned Aerial Systems (UAS): Weekly mapping of the site to track sand migration, which was critical for adaptive management strategies to maintain shoreline integrity.
Underwater Drone Systems: These were used for safe and effective documentation and management of the underwater habitat and vegetation placement.
Outcomes and Successes
The application of these advanced technologies not only achieved high precision in construction but also improved efficiency by approximately 30%, reducing the time required for grading operations. This increase in productivity led to cost savings and minimized environmental impact during construction. Key achievements of the project included:

Construction Accuracy: Achieved a 95% accuracy rate in the placement of riprap, verified by post-construction surveys, which was critical for the stability of the shoreline.
Project Schedule and Cost Efficiency: The strategic use of technology and innovative methods expedited project timelines and brought the project within budget.
Ecological Benefits: The restoration efforts have stabilized the shoreline, mitigated wave energy, and prevented further erosion, securing the ecological future of the park.
Conclusion
The Illinois Beach State Park Shoreline Restoration Project sets a new benchmark for shoreline restoration. Through the adept integration of advanced technology and construction methodologies, the project not only preserved the natural shoreline but also demonstrated scalable solutions that can be adapted globally to combat environmental degradation. This project serves as a model of how precision and innovation can dramatically enhance ecological restoration efforts, providing valuable insights for shoreline engineers, environmental scientists, and policy-makers involved in coastal and marine ecosystem preservation.

How does this project / topic contribute to the advancement of the industry and profession?: This project at Illinois Beach State Park sets a benchmark in shoreline restoration by integrating advanced technologies like 3D GPS machine guidance and multibeam sonar, which enhance construction precision and efficiency. This approach not only expedites project timelines and reduces costs but also minimizes environmental impact, demonstrating a significant advancement in ecological preservation practices within the civil engineering profession.

Does the project / topic implement new and innovative techniques, materials, technologies, and delivery methods?: The project incorporates innovative techniques such as the use of 3D GPS for machine grading, multibeam sonar for underwater accuracy, and unmanned aerial systems for monitoring sand migration. These technologies ensure precise material placement and efficient construction processes, setting new standards for accuracy and efficiency in shoreline restoration projects.

What was the most challenging aspect of your project / topic and how did you handle it to ensure success?: The most challenging aspect was the precise placement of various sizes of stone riprap essential for effective erosion control, requiring around-the-clock construction operations. We overcame this through the use of advanced measuring and guidance systems that ensured 95% accuracy in riprap placement, verified by post-construction surveys, thus maintaining high quality and safety standards throughout the project. This meticulous approach was crucial for the project’s success amidst complex logistical and environmental challenges.

Who is the target audience for this paper?: Target Audience: This abstract is directed at shoreline engineers, coastal planners, maritime construction professionals, environmental scientists, marine terminal operators, and policy-makers, emphasizing the project's technological achievements and its potential as a model for future shoreline restoration projects.