Bulkheads & Seawalls in the Texas Coastal Bend

The Coastal Bend is the middle of the Texas coast, centered on Corpus Christi. Shallow bays and the Laguna Madre sit behind Mustang and Padre islands, with Aransas and Copano bays to the north. This page covers Corpus Christi, North Padre Island, Port Aransas and the Rockport area.

The waterfront environment

Bays, lagoon and canals

Corpus Christi Bay and Nueces Bay border the city. To the south, the Laguna Madre is a long, shallow lagoon behind Padre Island. Packery Channel cuts across North Padre Island to the Gulf, and the island has navigation canals such as the one between the Don Patricio Bridge and Lake Padre. North of Corpus Christi, Aransas Bay and Copano Bay surround Rockport and Fulton.

Very small tides

NOAA tidal datums show very small tide ranges in this area:

With such a small astronomical tide, water levels in the bays are often shaped by wind and weather. During Harvey, for example, offshore winds on the west side of the storm held down flooding in Corpus Christi Bay. For bulkheads, that means wind-driven high and low water, waves across open bay fetch and storm surge usually matter more than the daily tide.

Erosion at canal bulkheads

In July 2024 the City of Corpus Christi reported that private developers would begin repairing bulkhead sections that had been undermined by erosion, in the navigation canal between the Don Patricio Bridge and Lake Padre on North Padre Island. The city noted that an articulated block mat revetment protects the canal under the bridge against underwater erosion. Undermining at the toe is one of the failure modes described in our guide to signs of bulkhead failure; toe protection is discussed in shoreline erosion control.

Storm history

The 1916 and 1919 storms and the bayfront seawall

Corpus Christi Public Libraries describe the city's downtown bayfront seawall as built between 1939 and 1941 to protect the city from hurricanes and storm surge following the devastating storms of 1916 and 1919. It is a public structure, but it shows how long storm surge has shaped the city's waterfront.

Hurricane Harvey, 2017

Harvey made landfall on the northern end of San Jose Island, about 5 nautical miles east of Rockport, and then again on the northeast coast of Copano Bay. The National Hurricane Center reported:

• Maximum inundation of 6 to 10 feet above ground level occurred north and east of Harvey's landfalls in the back bays between Port Aransas and Matagorda, including Copano and Aransas bays, with the highest values of 8 to 10 feet.
• Copano Bay, where Harvey made its second Texas landfall, had 4 to 7 feet of inundation.
• Damage was most severe near Aransas and Copano bays, with Rockport hit particularly hard.
• A water level of 3.5 feet above mean higher high water was measured at Bob Hall Pier, while offshore winds kept flooding in Corpus Christi Bay generally to 1 to 3 feet above ground. A gauge at the USS Lexington in Corpus Christi measured 1.0 foot above mean higher high water.
• Less than 3 feet of inundation occurred in areas adjacent to the Laguna Madre, including Padre Island.

Permitting in the Coastal Bend

Our Permit Navigator lists the agency pages we have verified for Texas.

Federal

The U.S. Army Corps of Engineers, Galveston District, reviews work in waters of the United States along the Texas coast. The Texas General Land Office reviews federal actions in the coastal zone for consistency with the Texas Coastal Management Program.

Texas General Land Office

The GLO authorizes structures on state-owned submerged land, including residential piers through Structure Registration, and commercial uses through easements or leases. Ask the GLO whether a bulkhead, fill or associated pier affects state-owned submerged land.

Gulf beaches and dunes

On Gulf-facing beaches of Mustang and Padre islands, state law requires coastal cities and counties to adopt rules protecting public beach access and setting construction standards, and the GLO certifies those local beach access and dune protection plans. Beachfront projects follow a different path from bay and canal bulkheads. Contact the City of Corpus Christi, the City of Port Aransas or Nueces County, as applicable.

Planning a project here

1. Identify the frontage: open bay, Laguna Madre, residential canal or Gulf beach.
2. Ask the designer how wind-driven water levels and wave exposure are accounted for.
3. Inspect the toe for undermining, especially in canals with boat traffic or currents; see the bulkhead inspection guide.
4. Read the bulkhead permit guide and bulkhead repair vs. replacement.

This page is educational. Agencies decide what a specific project requires, and licensed professionals assess specific walls.