A Visual History of the Surf Sled Vehicles
In 1986 Longitude 123 designed and fabricated the world’s first surf sled (Surf Sled I) along with a portable cofferdam, revolutionizing the way marine projects are executed in the unforgiving surf zone. View the slideshow to the left to learn more.
Outfall Repair Project - (Surf Sled I)
Location: Oxnard, California
San Elijo Joint Powers Authority Outfall Stabilization Project - (Surf Sled II)
Location: Carlsbad, California
This project involved the stabilization of a reinforced concrete outfall pipeline offshore Carlsbad, California. Approximately 2,000 feet of this 48-inch diameter pipeline was precariously suspended above the seafloor and required stabilization. The project site spanned an active surf zone. Environmental restrictions precluded the use of beach or shore-based support systems such as a trestle or pier, and the surf zone was too active to permit the use of floating equipment. L123’s owner, Mark Steffy, conceived and developed the Surf Sled II support system. Steffy also conceived and directed the design of a unique pipe support system. After soliciting 71 engineering firms nationwide, and reviewing a short list of eight responses, the Surf Sled approach was judged by the owner to be the most practical, safe and economical solution. According to the client, the project concept and execution saved the client over $20 million dollars. The surf sled used on this project was the second of three surf sleds designed, constructed and operated by Mark Steffy. The project was the subject of multiple technical papers, articles in trade journals, and presentations.
This project demonstrates the ability of L123 to plan and execute major pipeline work in a nearshore or surf zone condition. It also demonstrates the ability of L123 to conceptualize and execute solutions to challenging underwater project requirements.