Caring For Our Living Shoreline

Importance of preserving our beach

  • Storm protection - a wide sandy beach helps separate storm waves from hotels and homes.
  • Habitat restoration - numerous species such as the Kemp Ridley sea turtles and Piping Plovers rely on wide, healthy beaches as a place to live, feed and nest.
  • Economic Impact- Every year, there are over 2 billion visitors to America's beaches that support local economies.

Importance of a Healthy Dune SystemStorm Profile
Dunes are an important because they are our first line of defense from storms and flooding. Coastal communities are protected from the storms that occur in the Gulf by a system of vegetated sand dunes which provide a protective barrier. The General Land Office has directed coastal communities to protect these dunes because stabilized, vegetated dunes offer the best natural defense against damage caused by storms.

The desired outcomes of these efforts are two-fold:

  • To solidify a continuous dune line, offering storm protection
  • Act as a reservoir of sand to replenish eroded beaches during high energy wave events

SargassumA New Take on Sargassum
Sargassum species found on SPI have berrylike gas-filled bladders which help keep the fronds afloat to promote photosynthesis. The thick masses of Sargassum provide an environment for a distinctive and specialized group of marine animals and plants, many of which are not found elsewhere.

If you have visited our City in the past, you know that the beaches were typically raked or groomed on a regular basis in an effort to remove any natural debris such as seaweed. (Beach raking is the mechanized removal of seaweed and other natural materials from the beach.) Seaweed on the beach is often viewed as aesthetically unappealing. While superficially appearing to be a nuisance, if we let nature take its course, Sargassum, plays a number of critical roles in the beach and dune system:

  • Beaches return to natural cycles
  • Abates beach erosion by trapping and keeping sand in place
  • Allows dunes to re-vegetate and strengthen by adding nutrients to the system used by dune vegetation

With this knowledge, the City will strive to rake the beaches only when there is a significant amount of seaweed on the beach. Any seaweed that is removed will be placed strategically at the toe of the dunes to possibly be relocated at a later time to assist with dune restoration. The City will make every effort to remove any and all non-natural material from the seaweed deposits.

Innovative Solution
South Padre Island is currently working with the General Land Office as well as professional coastal engineering firms in researching long-term solutions to the beach erosion problem. Currently there are two projects in place:

  • A demonstration project using low-profile geotextile tubes. These tubes will be configured at different angles and depths to work with the natural flow of water. The goal is to slow the energy and thus the sand movement in the area of the project. The contractor will begin collecting data this spring and use the results to develop the best placement scenario.
  • A large scale offshore beach nourishment. Using sand that has been located 20 miles offshore from our beach. Permitting is reaching completion this spring. The City is also currently working on raising funds for the project.

These long-term solutions could possibly take years to see completion. In the meantime, the City of South Padre Island has adopted new beach and dune maintenance programs aimed at finding a balance between a natural and maintained beach.

How Can You Help
Since the fall 0f 2007 several volunteer events have taken place partnering with the University of Texas Brownsville, South Texas Surfriders, Texas Master Naturalist, and interested community members. At these events volunteers have planted over 20,000 plants at ten different gaps in the dune line. The City will be planning volunteer events throughout the spring.