Bulkheads and seawalls are essential parts of waterfront infrastructure. They protect shorelines, stabilize land, support docks and facilities, and help marine operations run safely and efficiently. Over time these structures are exposed to corrosion, wave loading, impact, scour, and biological activity. Continued exposure can reduce performance and threaten structural integrity.
At Commercial Diving Services, Inc., bulkhead repair and rehabilitation is a core service. The goal is to restore strength, extend service life, and avoid the cost and downtime of complete replacement. Solutions are engineered for harsh marine environments and planned to limit disruption while delivering long term performance. Repair programs are designed to address both structural deficiencies and environmental challenges.
Typical scopes include:
- Structural repairs to deteriorated steel, concrete, and timber bulkheads
- Restoration of corroded areas and sections with loss of thickness
- Stabilization of undermined or scour damaged foundations
- Replacement of tie backs, walers, and caps
- Sealing of leaks and prevention of future water intrusion
- Application of protective coatings and corrosion control systems
The objective is straightforward. Return the bulkhead to full function, extend its service life, and protect the waterfront investment.
Advanced Bulkhead Repair Systems
We implement two proven repair systems. Each is selected to fit project requirements, site conditions, and performance objectives.
Dry Cell Bulkhead Repair System
A specially designed dry cell is lowered into place over the existing sheet pile wall and the cell is dewatered. Once the work area is dry, inspectors complete a detailed assessment and crews perform welding, coating, patching, and sealing in a controlled environment. Performing the work in dry conditions allows precise restoration and helps ensure long lasting integrity and performance.
New Steel Resurface Underwater Repair System
Existing steel sheet piles are resurfaced with new steel that is coated to specification and formed to match the original configuration. After fabrication the new steel face is secured by underwater welding from interlock to interlock along the sheets. The result is a new corrosion resistant steel surface on the existing bulkhead without full replacement. This approach is efficient, cost effective, and preserves the structure footprint and load bearing capacity.
Inspection, Planning, and Engineering Support
The typical preconstruction effort includes:
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- Detailed visual and tactile inspection by certified commercial divers
- Non destructive testing such as ultrasonic thickness measurement
- Assessment of tie backs, walers, and anchor systems
- Review of environmental and site conditions including tidal exposure, salinity, and flow velocity
A successful repair begins with a complete understanding of the current site conditions. The information gathered during inspection helps shape a customized repair plan that addresses existing damage, reduces the likelihood of future deterioration, and aligns with operational priorities, regulatory requirements, and project budget.