$15 - $35 per Foot
A seawall's cost per foot typically ranges from $15 to $35, but this is a broad estimate. The actual price varies significantly based on factors like the wall's design, materials used, location, and the complexity of the project.
Construction costs are heavily influenced by site conditions and labor rates.
Factors Influencing Seawall Costs
- Material Choice: Concrete is generally the most affordable, followed by rock armor and then steel.
- Wave Energy: Higher wave energy areas require stronger, more expensive designs.
- Terrain: Difficult terrain increases labor and equipment costs.
- Permitting & Regulations: Environmental regulations can add to the overall expense.
Cost Comparison of Seawall Types
| Seawall Type |
Estimated Cost per Foot |
Typical Construction Time |
| Concrete Seawall |
$15 - $25 |
6-12 Weeks |
| Rock Armor Seawall |
$20 - $35 |
8-16 Weeks |
| Gabion Seawall |
$25 - $40 |
4-8 Weeks |
| Sheet Pile Wall |
$30 - $50 |
4-8 Weeks |
Additional Costs
Besides the wall itself, consider these expenses:
- Site Preparation: Excavation, grading, and drainage.
- Engineering & Design: Professional fees for blueprints and structural analysis.
- Permitting Fees: Local government approvals.
- Landscaping: Restoration of the area around the wall.
It's crucial to obtain multiple quotes from qualified contractors to accurately assess the total cost for your specific seawall project.
Detailed site assessments are essential for accurate cost estimations.