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EPA's Region 6 Office

Serving: Arkansas, Louisiana, New Mexico, Oklahoma, Texas, and 66 Tribal Nations

Ocean Dredged Material Disposal Sites
(ODMDS) in the Western Gulf of Mexico


Most of the dredged material disposed in the ocean is disposed at ocean dumping sites specifically designated by EPA for dredged material disposal under Section 102 of the Marine Protection, Research, and Sanctuaries Act (MPRSA). EPA designated sites are to be used for ocean disposal to the extent feasible.

All ocean dumping sites are required to have a site management and monitoring plan (SMMP). Appropriate management of ocean dumping sites is aimed at assuring that disposal activities will not unreasonably degrade or endanger human health, welfare, the marine environment or economic potentialities.

Management of ocean dredged material disposal sites involves:
  1. regulating the times, the quantity, and the physical/chemical characteristics of dredged material that is dumped at the site;
  2. establishing disposal controls, conditions, and requirements to avoid and minimize potential impacts to the marine environment; and
  3. monitoring the site environs to verify that unanticipated or significant adverse effects are not occurring from past or continued use of the disposal site and that permit terms are met.

Disposal Sites in the Western Gulf of Mexico

To go to a specific site, select the site from the map or the site list.

region 6 map dredging


Atchafalay River and Bayous- Chene, Boeuf, and Black
Atchafalay River and Bayous- Chene, Boeuf, and Black (West)
Baratara Bay Waterway
Calcasieu Dredged Material Site 1
Calcasieu Dredged Material Site 2
Calcasieu Dredged Material Site 3
Houma Navigation Canal
Mississippi River Gulf Outlet
Southwest Pass - Mississippi River


Brazos Island Harbor
Brazos Island Harbor (42-Foot Project)
Corpus Christi Ship Channel
Freeport Harbor - New Work (45-Foot Project)
Freeport Harbor - Maintenance (45-Foot Project)
Galveston Dredged Material Site
Homeport Project - Port Aransas
Matagorda Ship Channel
Port Mansfield
Sabine-Neches Dredged Material Site 1
Sabine-Neches Dredged Material Site 2
Sabine-Neches Dredged Material Site 3
Sabine-Neches Dredged Material Site 4
Sabine-Neches Dredged Material Site A
Sabine-Neches Dredged Material Site B
Sabine-Neches Dredged Material Site C
Sabine-Neches Dredged Material Site D

Virtually all material ocean dumped in the United States is dredged material removed from the bottom of waterbodies in order to maintain navigation channels and berthing areas. About 106 million cubic yards of sediment are dredged in Region 6 each year. The U.S. Army Corp of Engineers issues dredged material permits under MPRSA, subject to EPA's environmental criteria and concurrence.

Cutterhead Dredge used in
	 Fourchon, LACutterhead dredge used in Fourchon, LA






Pictures (above): Hopper dredge "Wheeler" used in Southwest Pass, LA.

Where can I learn more information on dredging in Region 6?

Regional Implementation Agreement (RIA), July, 2003 (PDF) (2.5 MB, 124 pp, About PDF)

This Regional Implementation Agreement (RIA) was prepared cooperatively by the U.S. Army Corps of Engineers (USACE), New Orleans District and Galveston District, and the U.S. Environmental Protection Agency, Region 6 (EPA). The RIA provides guidance for applicants, permittees, and USACE and EPA staff working on ocean dredged material disposal projects in Louisiana and Texas. The RIA is necessary to adapt the national procedures, contained in the 1991 Evaluation of Dredged Material Proposed for Ocean Disposal - Testing Manual, to Regional situations and ensure compliance with the ocean dumping regulations.

You will need the free Adobe Reader to view most of the files on this page. See EPA's PDF page to learn more.

EPA Region 6, Ocean Dumping Contact and Mailing Address

Jessica L. Franks, Ph.D.
U.S. EPA, Region 6 (6WQ-EC)
1445 Ross Ave., Suite 1200
Dallas, Texas 75202-2733

Phone: (214) 665-8335
Email: franks.jessica@epa.gov

For comments, questions, or suggestions, please send us a message.

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