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What We Do

Our
Capabilities

AGDM provides full-service dredging and marine construction capabilities for federal, state, and municipal clients. From hydraulic cutterhead operations moving 120,000 cubic yards to precision mechanical excavation in sensitive environments, we bring the right equipment, the right expertise, and the right approach to every project.

Commodore at Jupiter Inlet
Sand trap dredging close-up
Beach nourishment operations
01
Core Capability

Hydraulic Cutterhead Dredging

Our flagship capability. AGDM operates a 16-inch hydraulic cutter suction dredge — the "Commodore" — purpose-built for sand trap maintenance, navigation channel dredging, and beach nourishment operations. We run 24-hour continuous operations with computerized dredge positioning to maximize production while maintaining precision grade control.

Our cutterhead operations are backed by booster pumps and extensive pipeline systems — submerged, floating, and shore configurations — enabling long-distance pumping to beach placement sites.

Dredge16" Cutter Suction
Power2,500+ HP
Operations24/7 Continuous
PositioningComputer-Tracked GPS
Pipeline18" Submerged, Floating & Shore
BoostersIn-Line Booster Pumps
02
Core Capability

Mechanical Dredging

AGDM maintains full mechanical dredging capabilities including clamshell, swinging ladder, and excavator-based operations. Mechanical dredging is deployed for canal muck removal, confined waterway excavation, and projects where material characteristics or site constraints favor mechanical methods over hydraulic.

Our mechanical fleet includes long-reach excavators, dozers, and barge-mounted equipment capable of handling a wide range of material types from organic muck to compacted sand and rock.

ClamshellBarge-Mounted Operations
Swinging LadderCanal & Waterway Dredging
ExcavationLong-Reach Excavators
GradingPrecision Grade Control
TransportNumerous Support & Accessory Barges
DisposalUpland & Underwater Placement
03
Core Capability

Beach Nourishment & Coastal Restoration

AGDM has delivered multi-million-dollar beach renourishment projects for Florida's most critical coastal protection programs. We dredge sand from inlet sand traps, navigation channels, and impoundment basins and place beach-compatible material along eroded shorelines for storm damage reduction and habitat restoration.

Our beach nourishment work includes full pipeline installation, beach profile contouring, and coordination with sea turtle nesting season restrictions and environmental permit conditions.

SourceSand Traps, Channels & Basins
PlacementNearshore & Beach Profile
Volume120,000+ CY Per Project
Pipeline18" Submerged & Shore
ComplianceTurtle Season Coordination
MonitoringBeach Profile Surveys
04
Technical Capability

Hydrographic Surveying & AutoCAD

In-house hydrographic and land surveying provides real-time production tracking, pre- and post-dredge condition surveys, and precise volume calculations. All survey data is processed and plotted using AutoCAD for accurate CQC production reporting and regulatory submissions.

Our computerized dredge positioning systems provide operators with intuitive interfaces showing real-time cut lines, grades, and proximity to sensitive habitats — eliminating guesswork and protecting resources like seagrass beds.

HydrographicPre/Post Dredge Surveys
SoftwareAutoCAD Plotting
PositioningGPS Dredge Tracking
ReportingCQC Production Reports
VolumeCut/Fill Calculations
HabitatSeagrass Avoidance Mapping
05
Technical Capability

Environmental Compliance & Water Quality

Environmental stewardship is built into every AGDM operation. We perform continuous water quality monitoring including pH, Dissolved Oxygen, Turbidity, Copper, Lead, and Arsenic testing throughout all dredging activities. Our team is certified for USACE, FDEP, and county-level environmental reporting protocols.

Manatee observation programs, seagrass impact avoidance, turbidity barrier deployment, and real-time environmental data collection ensure our projects meet or exceed all permit conditions.

Water QualitypH, DO, Turbidity, Metals
WildlifeManatee Observation Programs
HabitatSeagrass Impact Avoidance
ControlsTurbidity Barriers & BMPs
ReportingUSACE / FDEP / County
RecordZero Violations
Precision Technology

RTK GPS Dredge
Guidance & Hydrographic
Survey Systems

Every cubic yard we move is tracked in real time. AGDM deploys integrated Trimble GNSS and Hypack navigation systems across all dredging operations — providing centimeter-level positioning accuracy, live cut-depth monitoring, and full digital documentation from mobilization to final survey.

Our positioning infrastructure enables precise compliance with environmental setback requirements, authorized project depths, and zero-tolerance overdredge specifications — critical for work in seagrass-sensitive and environmentally monitored waterways.

Trimble GNSS / RTK Base & Rover Real-Time Kinematic GPS base station and vessel-mounted rover providing ±1 cm horizontal and ±2 cm vertical positioning accuracy. Dual-frequency L1/L2 receivers with real-time correction broadcasting via UHF radio link to the dredge and survey vessel simultaneously.
Hypack Dredgepack® Navigation Suite Industry-standard dredge guidance and positioning software providing the dredge operator with real-time plan view and cross-section displays. Live cut-depth visualization, swing-pattern optimization, and automatic channelization with computed pay quantities. Interfaces directly with the Trimble RTK feed for sub-inch accuracy.
Hydrographic Survey & As-Built Documentation Pre-dredge and post-dredge hydrographic surveys conducted using single-beam echosounder integrated with Trimble RTK for IHO-compliant depth data. Generates volumetric cross-sections, TIN surface models, and exportable as-built deliverables for USACE and client acceptance.
Environmental Compliance Monitoring GPS-tracked dredge positioning with configurable avoidance zones for seagrass beds, coral, and other protected resources. Real-time digital logs record dredge location, swing limits, and pump status — providing verifiable compliance records for regulatory review.

Where We Work

Inlets

Sand Trap & Channel Maintenance

Beaches

Nourishment & Coastal Restoration

ICW

Intracoastal Waterway Dredging

Canals

Muck Removal & Grading

Marinas

Navigation & Basin Dredging

Rivers & Lakes

Maintenance & Restoration

Nearshore

Underwater Placement

Barrier Islands

Storm Damage Reduction