Shoreline erosion along San Antonio Bay is driven by southeast wind fetch, river flooding cycles, hurricane surge acting on soft mud and delta sediment substrate. Retaining walls stop this process by transferring soil loads into a designed structure — whether timber, stone, or concrete block.
Every San Antonio Bay retaining wall starts with a site assessment — measuring bank height, testing bearing capacity in soft mud and delta sediment, evaluating water level ranges, and calculating surcharge loads. This data drives material selection and engineering.
We serve waterfront properties along the full San Antonio Bay shoreline — near Seadrift, Austwell, Tivoli. Contact us for a free consultation and on-site assessment.

labor and materials
Treated timber retaining walls on San Antonio Bay for low-to-moderate bank heights where soft mud and delta sediment allows driven post construction. Southern yellow pine with copper azole treatment withstands the bay's brackish water from Guadalupe and San Antonio Rivers for 20+ years.

labor and materials
Stone retaining walls along San Antonio Bay from regional limestone, granite or sandstone. Dry-stacked or mortar-set, stone walls provide mass-gravity retention while complementing the natural shoreline near Seadrift, Austwell, Tivoli.

labor and materials
Wire cage gabion walls for San Antonio Bay shoreline stabilization on soft mud and delta sediment grades where ground movement from southeast wind fetch, river flooding cycles, hurricane surge would crack conventional concrete. Rock-filled baskets flex, drain and revegetate naturally.

labor and materials
Concrete masonry retaining walls on San Antonio Bay with reinforced cores and positive drainage behind the wall face. CMU construction handles the brackish water from Guadalupe and San Antonio Rivers environment and provides maximum rigidity on stable soft mud and delta sediment foundations.

labor and materials
Rapid-deploy concrete bag walls along San Antonio Bay for emergency and planned bank stabilization. Fabric-formed bags on soft mud and delta sediment slopes cure into a monolithic armored surface against southeast wind fetch, river flooding cycles, hurricane surge.

labor and materials
Retaining wall rehabilitation on San Antonio Bay: structural evaluation, selective demolition, tieback replacement, drainage restoration, and cap repair. Every project near Seadrift, Austwell, Tivoli includes root-cause analysis.


Depends on bank height and conditions. Wood handles up to 4 feet on San Antonio Bay. Stone and gabion provide drainage and flexibility on soft mud and delta sediment. Concrete block is engineered for taller walls with heavy loads.
Starting prices on San Antonio Bay range from $70/ft for repair, $120 for concrete bag, $150 for wood and stone, $180 for concrete block, and $200 for gabion. Final cost depends on wall height, soil conditions, drainage and access.
Yes. Every retaining wall on San Antonio Bay needs positive drainage — typically gravel backfill with perforated pipe. Without it, hydrostatic pressure from brackish water from Guadalupe and San Antonio Rivers saturating the backfill can push the wall out.
Localized timber rot, displaced stones, and minor cracks can usually be repaired. If the wall is leaning, the foundation is undermined, or drainage has failed along most of the run, replacement is typically more cost-effective.
Yes. Shore Protect Team handles all required coordination for retaining wall projects on San Antonio Bay, from site assessment through construction completion. We serve properties near Seadrift, Austwell, Tivoli.