
Marine Construction
Retaining Walls
Retaining walls near water face a soil-saturation problem that inland walls never see, which is why waterfront retaining wall design leans heavily on drainage engineering, not just wall strength.
Signs You Need This
Signs You Need Retaining Walls
- A grade change near your shoreline is showing erosion or slumping
- You need a secondary wall set back from a primary seawall or bulkhead
- Existing retaining structures are leaning or cracking
- You're regrading a waterfront property for landscaping or construction
Our Process
How It Works
- 1Soil & drainage assessment
We evaluate soil saturation and water table interaction specific to waterfront conditions.
- 2Design
We engineer wall height, footing, and drainage to handle wet-soil loading safely.
- 3Construction
We build using concrete block, poured concrete, or timber systems matched to the application.
- 4Drainage & backfill
We install drainage systems and properly compact backfill to prevent future settling.
Benefits
Why Invest in Retaining Walls
- Prevents erosion and slope failure near waterfront grade changes
- Engineered drainage prevents the waterlogged-soil failures common near water
- Can be integrated with a primary bulkhead or seawall system
Cost
What It Costs
Typical Range
$50 – $200+ per linear foot
What affects the price:
- Wall height and soil load
- Drainage system requirements
- Material selection
- Integration with existing shoreline structures
FAQ
Retaining Walls Questions
Yes — walls near water table-influenced soil need dedicated drainage design that inland retaining walls typically don't, since trapped water pressure is the leading cause of failure in these conditions.
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