Broward
County, Florida
Coastal Systems provided engineering services for the
design/build construction of 10 acres of artificial reefs
offshore of Dania and Hollywood beaches in Broward County.
The mitigation was required for hard-bottom impacts from
the planned
Segment III (south of Port Everglades) beach restoration.
The project consisted of placing 66,000 tons of limerock
boulders utilizing a crane barge outfitted with precise
positioning equipment. The boulders were transported using
barges from quarries in Freeport on Grand Bahama Island.
The crane barge was anchored in 15 - 20 feet of water
approximately 500' off of the beach.
Coastal Systems provided an engineered approach to
the construction with the following services:
- Coastal engineering wave statistical
analysis to
determine optimum construction schedule for
favorable weather conditions
- Marine
resource surveys to map hard-bottom limits
utilizing towed underwater video
- Preparation
of construction plans with reef mapping
data and LADS data to modify environmental permits
and use during construction operations.
- Mooring analysis design for
temporary single-point mooring of supply barges
- Design/layout of pile anchor
system for crane barge with supply barge in
nearshore zone, adjacent to reefs
- Specification of high strength
floating line for 4-point mooring of crane barge
- Design of barge loading ramps
at quarry site
- Crane and barge marine positioning
using DGPS
- Vessel tracking system
- Site engineering support
- Web-based project management
- As-built hydrographic surveys
- Construction management and
automated quality control
|
Construction was completed between May and September of
2003, on schedule.
|
