• Creative
  • capabilities
  • Experience

Coastal Engineering

GBA has extensive experience in beach nourishment, wetland creation/restoration, artificial reef construction, shore protection, structural design, etc.

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Hydrographic Surveying

GBA is a pioneer in the field of hydrographic surveying and has a broad range of experience and background surveying for every major port in the U.S.

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Construction Management

Our inspection services cover all phases of construction from dredge operations to the final placement of the dredged materials as landfill, etc.

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Recent Projects

Credentials

  • Who we are
  • What We Do

With offices located on the major estuaries of the east, west and gulf coasts, GBA is the largest firm in the US specializing in dredging engineering, hydrographic surveys, and subsurface investigations. Some of the Federal agencies, Port Authorities, States & local municipalities as well as private sector companies we had the opportunity and privilege to work with.

Federal Sate and Municipals

  • City and County of San Francisco
  • California State Coastal Conservancy
  • County of Marin
  • Delaware DNR
  • Louisiana DNR
  • Martin County FL
  • Maryland Environmental Service
  • Naval Facilities Engineering Command (VAVFAC)
  • New Hanover County NC
  • NJ DOT
  • San Mateo County Harbor District
  • Sonoma Land Trust
  • USACE- Multiple Districts
  • US Environmental Protection Agency

Ports

  • Georgia Ports Authority
  • JAXPORT
  • Maryland Port Administration
  • Massport
  • North Carolina State Ports Authority
  • PANYNJ
  • Philadelphia Regional Port Authority
  • Port Everglades
  • Port Hueneme
  • Port of Cape Canaveral
  • Port of Corpus Christi
  • Port of Galveston
  • Port of Houston Authority
  • Port of Los Angeles
  • Port of Long Beach
  • Port of Miami
  • Port of Oakland
  • Port of Portland
  • Sabine Neches Navigation District
  • Tampa Port Authority
  • Virginia Ports Authority

Dredging Industry

  • Ahtna Design-Build
  • Cashman
  • Conolly Pacific
  • Dutra
  • Dutra Construction
  • General Construction Company
  • Great Lake Dredge and Dock
  • Marinex
  • Manson Construction
  • Norfolk Dredging
  • Orion Marine
  • RE State
  • Sevenson
  • Weeks Marine

Private Sector

  • Alcoa Aluminum
  • BAE Systems
  • Cargill
  • Chevron Corporation
  • United Space Alliance
1Dredging

GBA approaches the solution to a dredging need based on its extensive experience as a major dredging contractor.

2Hydrographic Surveys

GBA is a pioneer in the field of hydrographic surveying and has a broad range of experience and background surveying for every major port in the U.S. Surveying for navigation channel dredging and coastal projects.

3Dredged Material

GBA approaches the solution to a dredging need based on its past experience as a major dredging contractor and current project experience from coast to coast.

4Navigational Channel Design

GBA has been actively involved in designing ship channels, turning basins, and berthing areas throughout the United States.

5Coastal Engineering

GBA has extensive experience in beach nourishment, wetland creation/restoration, artificial reef construction, shore protection, structural design and more.

6Construction Management

Our services cover all phases of construction from dredge operations to the final placement of the dredged materials.


GBA Philadelphia

3460 North Delaware Ave
Suite 308
Philadelphia, PA 19134-6311
(215) 425-6283
(215) 425-6284 Fax

GBA Wilmington, DE

3801 Kennett Pike
Suite C302
Wilmington, DE 19807-2321
(302) 652-4948
(302) 655-9218 Fax

GBA Baltimore

9008-O Yellow Brick Road
Baltimore, MD 21237-5608
(410) 682-5595
(410) 682-2175 Fax

GBA Wilimington, NC

295-A North Green Meadows Drive
Wilmington, NC 28405-3933
(910) 313-3338
(910) 313-6822 Fax

GBA Tampa

3802 West Bay to Bay Blvd
Suite B-22
Tampa, FL 33629-6826
(813) 831-4408
(813) 831-4216 Fax

GBA Houston

9330 Kirby Drive
Suite 100
Houston, TX 77054-2515
(832) 377-4800
(832) 377-4802 Fax

GBA Los Angeles

10541 Humbolt Street
Los Alamitos, CA 90720
(310) 521-8127

GBA San Francisco

600 Martin Avenue,
Suite 200
Rohnert Park, CA 94928
(707) 595-3492
(707) 595-3520 fax