Seawall - Marco Island

Villa De Marco, Phase I and II,
Marco Island, FL

Phase I of the project consisted of installing a 365 LF cantilever steel sheet pile (SSP) wall with a concrete curtain wall and cap replacing the concrete seawall obliterated during Hurricane Irma. The Z-profile SSPs, ranging in length from 40’ to 52’, were installed to top of rock; damaged piers, concrete blocks, landscaping, and other hurricane debris were removed from the alignment. Once the seawall was secured, a 2’ deep x 4’ tall concrete curtain wall, spanning the tidal zone, was poured along the entire face followed by a 3’ x 2.5’ concrete cap. Additionally, a 40 LF section of SSP toe wall was constructed 20’ below water for scour counter measures. An engineered cathodic protection system was installed consisting of 34, 240 lb. aluminum anodes welded along the seawall face and toe wall. During all SSP installation the exposed building was monitored for vibrations and observed for settlement by a third-party surveyor. The steel sheet piles were successfully driven into place without causing any added duress on the already precarious structures.

Phase II of the project, currently underway, consists of filling in behind the new seawall with locally dredged sand, rebuilding the fishing pier and resident finger docks, along with restoring a 12,000 SF area in front of the seawall with fill and securing it with armor mat for scour protection. Timber dock and mooring piles ranging from 25 LF to 50 LF will be installed in their previous footprint with all new composite decking. The fishing pier located at the point will encompass grout filled steel pipe piles wrapped with HDPE sleeves, composite decking, IPE railing, ADA accessible ramps and viewpoints, and a fish cleaning table.

1206 Edington Place
Marco Island, FL

Ville De Marco West, A
Condominium, Inc.

Coastal Engineering Consultants
3106 South Horseshoe Dr.
Naples, FL 34104


Estimated Completion Date:
September 2019

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What our Clients are Saying

Kelly Brother’s commitment to customer satisfaction, quality work, and on budget performance was proven at every level and every project. The result of our working together has been building one of the area’s premier marinas and recently garnered National Marina of the Year. We certainly consider their work as an integral part of this achievement!

~ Sam Chavers, Vice President
Marina Jack, Sarasota

What our Clients are Saying

KBI was very cooperative in developing solutions to an unforeseen subsurface condition that occurred during installation of the piling. They negotiated the extra
work compensation fairly, and they proceeded with the work with no delays to the project.

~ Todd Boehmer, Amec Foster Wheeler, Project Engineer
Arcadia Bridge, Arcadia

What our Clients are Saying

During construction Kelly Brothers proved their expertise in marine construction by value engineering various components of our multi-faceted project, which resulted in a considerable cost savings to the City of Naples. They have a knowledgeable staff with a strong work ethic and the specialized equipment to deliver a quality product at a competitive price.

~ Roger Jacobsen, Harbor Master
City Dock, Naples

What our Clients are Saying

Congratulations to the team for a great project. The KBI crew was outstanding. It is rare that a crew completes a dredge project without the need for a punch list at the end.  Thanks to Jake, Travis, and especially to Raul and his crew.

~ Mark Kincaid P.E., Vice President of Engineering
Coastal Engineering Consultants

What our Clients are Saying

Kelly Brothers was commissioned to construct a meandering 1,200 lineal foot elevated boardwalk, through our environmentally sensitive wetland. Our goal was to construct an elevated boardwalk and shell paths through this coastal habitat while respecting the mangrove forest, salt marsh, as well as the oak hammock uplands. The chorography technique Kelly Brothers created was truly impressive. As a result, there was no disturbance or destruction to any part of the surrounding area.

~ Al Meronek, Project Manager
Neal Preserve, Bradenton, Manatee County