In 2004, Texas sank 152 discarded concrete power poles weighing 1,457 tons in the Gulf; the unusual load became an artificial reef 130 feet underwater

What happens when something built to stand on land is given a second life beneath the ocean? Concrete power poles found their way in the summer of 2004 from the warehouse to the floor of the Gulf of Mexico, not by chance. The bulky objects instead served another function: becoming a new artificial reef where fish and other marine life forms can hide or find the surface for their attachment and development. It is a good example of how waste materials can be reused and serve the ecological cause. According to a report published by the Texas Parks and Wildlife Department, 152 concrete utility poles were deployed at the Matagorda Island-712 Reef site, where they became part of an artificial reef structure located in about 130 feet of water.

From utility poles to an underwater habitat

This artificial reef project started with the donation of 152 hollow concrete electric poles by American Electric Power to the Texas Artificial Reef Program. The poles had lengths between 10 and 40 feet, and the reported total weight of the deployed reef materials was 1,457 tons. The poles were transported to sea and then deployed at a permitted reef site called Outer Continental Shelf Block, Matagorda Island 712. The artificial reef structure was installed at a water depth of about 130 feet and created the first power pole artificial reef in Texas.


The concept was based on one basic premise: marine life requires something to hold onto. Much of the Gulf of Mexico seafloor lacks the hard structures that many organisms use for attachment and shelter. Artificial reefs add that missing complexity by creating spaces where smaller organisms can settle and where larger species can find feeding and hiding areas.

Why concrete can become a reef

Concrete may seem like an unlikely material for an ocean habitat, but it has qualities that make it useful for artificial reefs. First of all, concrete is dense enough to stay in one place and durable enough to survive the harsh marine environment. Moreover, it provides surfaces and holes where organisms can attach. Another report by the Texas Parks and Wildlife Department explains that artificial reef materials must be stable, durable, and complex enough to provide shelter and surfaces where marine organisms can attach and grow. Once installed, a reef structure becomes a foundation for habitat development as organisms such as barnacles, sponges, corals, clams, and other marine species colonize its surfaces.

A new role for discarded materials

Concrete poles offered a way to dispose of the infrastructure while giving the material a new purpose. Rather than disposing of it at disposal sites, the project was intended to use the material to protect marine life. This is one of the key strategies in the creation of artificial reefs, which require materials that can be used after their initial use. Texas has used several different materials to construct its artificial reefs, such as concrete, heavy gauge steel, decommissioned ships, and other structures certified for reef use. The material has to be environmentally friendly before being submerged.

Building life on an otherwise empty seafloor

The worth of the concrete power poles was not based on their previous utility above ground, but rather on their potential usefulness underwater. In the Gulf, where hard-bottom habitat is rare in open waters, artificial reefs form areas where life can thrive. Over time, these become home to a series of living things. The small organisms form a food source and shelter to attract larger animals. Fish that need a structure to live in can congregate at such sites, making artificial reefs useful for more than just marine life.

The lasting impact of an unusual experiment

The concrete pole reef became one of the many artificial reef sites managed through Texas’ reef program. The Matagorda Island-712 reef site became home to not just 152 concrete utility poles, but also other structures at the same site, which included a deck structure and a hopper barge. Such diversity in construction materials resulted in a more complex underwater environment, illustrating the possibility of combining different reef structures to enhance the value of habitats under the Gulf.

Artificial reefs are now used across Texas waters because much of the Gulf floor is naturally made up of sand and mud rather than hard surfaces. By adding stable and durable structures, these projects create places where marine organisms can attach and where fish can gather, turning carefully selected materials into long-term habitat.