Atkins offers geophysical services to governments and industry for a variety of marine applications including offshore energy development, environmental restoration, dredging, ecological studies, post-hurricane assessments, and marine archeology.

Specialized teams provide shallow-water surveys of rivers, lakes, reservoirs, harbors, estuaries, and the offshore continental shelf. Survey instrumentation includes echo sounders, magnetometers, sonars, sub-bottom profilers,

water level gauges, sound velocity meters, motion sensors, gyroscopes, USBL acoustic positioning, remotely operated vehicles (ROV), GPS receivers, and navigation software.

Capabilities•Bridge inspections•Cable routes•Dredging projects•Environmental restoration•Geohazards•Hard bottom•Hurricane debris•Marine archeology

•Marine ecology•Marinas•Pipeline routes•Platform decommissioning•Ports and harbors•Reservoir volumes•ROV inspections•Sand sources •Seagrass•Search and salvage•Sediment management•Shoreline protection•Shellfish•Well pads

Marine geophysical services

Atkins geophysical team provides quality data in support of infrastructure, water, and environmental projects.

Marine geophysical services

Relevant projects Houston-Galveston Navigation Barge Lanes Project, Galveston, Chambers, and Harris Counties, TX. Atkins conducted marine geophysical surveys for the USACE preceding construction of barge passing lanes adjacent 15 miles of the Houston Ship Channel in Galveston Bay. A major survey objective was to map oyster habitat within the dredging footprint. Atkins’ survey identified 54 acres of oyster habitat that would be impacted by dredging. Additional surveys were conducted in areas considered suitable for building new oyster reefs to mitigate the loss of reef acreage due to construction. Atkins also conducted subsurface sediment investigations of each proposed mitigation reef to determine the weight-bearing capacity of soils. The survey identified areas suitable for construction of mitigation reefs that would not affect existing oyster reefs, pipelines, or archeological sites.

Goose Point/Point Platte Marsh Creation Project (PO-33), St. Tammany Parish, LA. This project is an ecosystem restoration effort constructed under the Coastal Wetlands Planning, Protection and Restoration Act. The project will create 440 acres of marsh within the boundaries

For more information, contact:

1. CHIRP sub-bottom profile

2. Side-scan sonar mosaic Stetson Bank, Gulf of Mexico

3. Geophysical survey Gulf of Mexico

of the Big Branch Marsh National Wildlife Refuge and the St. Tammany State Wildlife Refuge using material dredged from Lake Pontchartrain. Atkins conducted a geophysical survey for the Louisiana Department of Natural Resources to identify sediment borrow areas suitable for constructing marsh ponds. The survey acquired geophysical data for 6,900 acres of Lake Pontchartrain utilizing a magnetometer, recording fathometer, CHIRP sub-bottom profiler, and side-scan sonar.

Representative clientsAmerican Electric PowerApache CorporationBaker-AicklenBelaire EnvironmentalBerger AbamBOSS Exploration & ProductionBureau of Ocean Energy ManagementC.H. Fenstermaker & AssociatesCabot Oil & Gas CorporationCheniere EnergyChris Ransome & AssociatesCinco Natural Resource CorporationCity of Texas CityClean Water CoalitionDavis PetroleumDixie Environmental Services CompanyDynamic Offshore ResourcesEagle Asphalt ProductsEl Paso Natural GasFalcon Bay Energy

Florida Dept. of Env. ProtectionFugro PelagosGulf Engineers & ConsultantsLouisiana Dept. of Natural ResourcesMeridian Resource & ExplorationNeumin Production CompanyPalace Operating CompanyPinellas County, FLProServ OffshoreShelmark EngineeringSouthern Nevada Water AuthoritySt. Johns County, FLSterling Exploration and ProductionStevedoring Services of AmericaSverdrup CorporationTerrasondTexas Department of TransportationTexas General Land OfficeThe Nature ConservancyUnion Pacific RailroadURS CorporationUSACEU.S. Marine CorpsWilliams Gas Pipeline (TRANSCO)

2

1

3

©2013 Atkins North America, Inc. 01017.SS.13_0204www.atkinsglobal.com/northamerica