CIVIL: COASTAL / MARINA

CRANDON PARK MARINA
Key Biscayne, Florida

The firm’s engineering and architectural staff has extensive experience in the design of coastal structures. C3TS designed and incorporated a floating dock system into the existing marina basin and completely redesigned and upgraded the utility systems for Miami-Dade County Parks and Recreation Department’s Crandon Park Marina on Key Biscayne. This project was handled as a hybrid design. C3TS prepared the wind-wave study for the marina and designed all of the civil components associated with the site. The design of the floating docks was also handled through a Design-Build contract where C3TS was responsible for review of the floating dock structural design as the Miami-Dade County representative.

MATHESON HAMMOCK MARINA
Coral Gables, Florida

The Matheson Hammock Marina in Coral Gables, was reconstructed through the Design- Build process. C3TS initially established the wind-wave study for Miami-Dade County Parks and Recreation, then served as the Special Engineer for the Design-Build Team responsible for the design and project. This included all associated site work.

FORT PIERCE INLET BOAT RAMP
Fort Pierce, Florida

This project involved a recreational boat ramp facility featuring four boat ramps, floating dock finger piers, two staging areas, concrete seawall and cap, rip-rap revetments, parking for 75 vehicles with trailers, passenger car parking, drainage and wetlands areas, water, sewer and electrical service, lighting, information kiosks and turn lane access from State Highway with entrance feature. 

This particular marina endured both Hurricanes Francis and Jeanne in 2004 and Hurricane Wilma in 2005 almost unscathed.  The only damage from the hurricanes in 2004 consisted of a walkway which separated and was reattached in 20 minutes, making this one of the few marinas fully functional after the hurricanes.  There was no damage from Wilma in 2005.  The county was and still is extremely pleased with C3TS.  

DEERFIELD ISLAND PARK BOARDWALK
Deerfield Beach, Florida

Deerfield Island Park is a designated urban wilderness area and is located on the Intracoastal Waterway near the Broward/Palm Beach County line. The heavily wooded 56-acre site was originally constructed under the old County work program and is leased from the state.

Phase I of the rebuilding effort included upgrading the structural integrity of the aging boardwalk system and installing recycled plastic docking material. Since the park is only accessible by boat or the County’s ferry service, all construction materials had to be brought in on barges. Even under these unusual circumstances, the Design-Build Team of C3TS and RDC brought the project in on time and on budget. Phase II included marina upgrades, ADA-accessible docks, and additional recycled plastic boardwalks to all the park amenities, restrooms, picnic areas and educational kiosk.

COASTAL BOARDWALK
North Bay Village, Florida

C3TS’s professionals have a wealth of experience designing recreational facilities, such as the City of North Bay Village’s Coastal Boardwalk. The project’s Phase I includes the design of approximately 1,100 linear-feet of boardwalk with three gazebos, a lighthouse pavilion, decorative railings echoing details from the City’s seal, benches, trash receptacles and lighting. The project may also include a Phase II with an additional 1,500 linear-feet of boardwalk.

MEDLEY LEHIGH LAKE SHORELINE
Medley, Florida

In 2005, Hurricanes Katrina and Wilma completely devastated 2,842 feet of shoreline fronting a mobile home community at the northwest corner of Lehigh Lake, a 240 acre lake in the Town of Medley. The Town contracted C3TS to perform emergency inspections and engineering of the lake shoreline and pavement edge damages resulting from high groundwater and wind-driven wave action. C3TS evaluated the damaged shoreline, recommend repair alternatives and also assisted the Town in applying for and obtaining FEMA funding for the repairs. C3TS completed the final design plans and specifications, assisted with permitting, bidding, and performed the construction administration.

The construction cost was $1.1 million for reconstruction of the entire 2,842 linear feet of shoreline, which included installing shoreline protection, guardrail, fencing & landscaping, and rebuilding the lakeside roadway. Conditions encountered along the shoreline were highly variable, including an eroded bank, with side slopes ranging from normal (1:1) to very steep slopes, and a very deteriorated pavement edge that had been partially undermined by eroding sub-soils due to the variable water table and the waves. Shoreline stabilization was accomplished through removal of unstable backfill and demolition debris found along the entire bank (remnants of the mining operations that created the artificial lake), and excavation to a stable rock shelf. Rock-filled gabion baskets in 9’x3’ interlocking units were then staked vertically on the rock shelf to construct a 2,842 foot long seawall along the entire shoreline.

The rock shelf underneath the seawall and the lake banks were lined with a geotextile filter fabric to prevent the migration of fines. Eroded/excavated areas behind the seawall were then backfilled and compacting with gravel and limerock. In addition to this project, C3TS has successfully completed many projects for the Town under our Continuing Engineering & Architecture Services contract since 1995. Projects have included drainage, roadways, potable water, sanitary sewer pump stations, parks, municipal facilities, annexation support, plans reviews, and inspections.