Sea Wall Construction
Del Mar Sea Wall
Del Mar, California
A 130-foot cantilevered sheet pile seawall with reinforced concrete encapsulation protecting two oceanfront properties in Del Mar.
The Problem
Site Conditions That Drove the Work
Two oceanfront properties at 1702 Coast Boulevard and 1716 Ocean Front in Del Mar required shoreline protection. The work had to be performed on the beach within a 30-foot construction zone, maintaining lateral public beach access throughout, and connecting to the existing seawall at the 17th Street Lifeguard Station.
The Solution
J.C. Baldwin constructed a 130-foot-long vertical cantilevered seawall using PZ 35 hot-rolled steel sheet piles driven to a depth of -24 feet, encapsulated in reinforced concrete from the top of wall at elevation 15.83 feet down to elevation 4.0 feet. The structure includes a 10-foot-6-inch return wall, a wave deflector, a 4-foot public access penetration with stairway, and all epoxy-coated Grade 60 reinforcing steel with 4-inch minimum concrete cover.
Outcome
The seawall protects the Del Mar Motel and the adjacent oceanfront property with a structure spanning nearly 40 feet from pile tip to top of wall, engineered to withstand coastal scour conditions and long-term wave exposure.
Engineer
TerraCosta Consulting Group
Wall Length
130 ft plus 10.5 ft return
Sheet Pile
PZ 35, tip at -24 ft elevation
Structure Height
~40 ft (tip to top)
Concrete
4,000 psi min, Type V Portland cement
Reinforcing
Grade 60, all epoxy coated
Project Gallery
Problem, Solution, and Site Conditions in the Field
Related Services
Capabilities Behind This Project
The Del Mar Sea Wall drew on J.C. Baldwin's seawall construction and coastal bluff stabilization services to protect two oceanfront properties under tight beach, tidal, and public access constraints. Learn more about the services involved in Del Mar Sea Wall: