Map and Plat Production
Often the main product of our work is a map, plat or chart. These products are used to provide information in support of whatever the client intends to accomplish.
We can generate the products in CAD systems such as AutoCAD or Microstation or in GIS applications such as CARIS or ArcView.
Related Projects:
- NOAA Charting - Unimak Pass
- Unimak, Alaska
- TerraSond was contracted by NOAA to provide modern hydrographic survey data for updating the nautical charts north of Akun Island, Alaska, and also a portion of the Safety Fairway through Unimak Pass connecting the Bering Sea with the North Pacific Ocean.
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- NOAA Charting - Alabama, Louisiana and Mississippi
- Gulf of Mexico
- We were contracted by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA) to provide sidescan, single beam, and multibeam sonar services for Debris Mapping of the Alabama Fairways and Perdido Bay in the Gulf of Mexico.
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- Coal Facility Landing Site
- Cook Inlet, Alaska
- Our hydrographic surveyors provided multibeam bathymetry and collected marine geophysical and current data to aid in the development of a trestle and dock for the shipment of coal mined from a coal facility landing site in Cook Inlet, Alaska.
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- Nome Navigation Improvements
- Nome, Alaska
- We were contracted by a large construction company to establish a control network and to provide progress checks for hydrographic and topographic surveys for the U.S. Army Corps of Engineers (USACE) - Alaska District in Nome, Alaska. Our surveying services were used to support the design project for a new harbor and entrance. Included in the project was also a large breakwater extending offshore.
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- ROV Multibeam Surveys
- Various Locations, Worldwide
- We performed a series of multibeam surveys for a company that was tasked with mapping a number of existing and proposed sub-sea installations and specializes in acoustic positioning in deep water.
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- NOAA Charting - Mississippi and Alabama
- Gulf of Mexico
- The U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA) tasked TerraSond to provide multibeam sonar and sidescan sonar survey services so that nautical charts of the survey area in Mississippi and Alabama could be updated.
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- NOAA - Alaska IDIQ Contract for Hydrographic Surveys and Related Services
- Various Locations, Alaska
- Since 1998, we have supplied the U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA) with hydrographic data of 100% bottom coverage with shallow-water multibeam sonar systems.
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- USACE - Alaska IDIQ Contract for Hydrographic Surveys and Related Services
- Various Locations, Alaska
- Since 1995, we have provided the U.S. Army Corps of Engineers (USACE) - Alaska District with hydrographic, topographic, and Global Positioning System (GPS) control surveys; aerial photography; LiDAR mapping; and tide studies on over five hundred projects throughout Alaska.
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- Support Surveys for Wildwood Air Force Station Remediation
- Kenai, Alaska
- Our surveyors performed a primary control monumentation survey, preliminary topographic and quantity calculations, construction and grading layouts and final as-built surveys of contaminated sites for the Wildwood Air Force Station Phase II Remediation Project.
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- Bethel Bank Stabilization
- Bethel, Alaska
- TerraSond provided surveying and Global Positioning System (GPS) control surveys for the Bethel Bank Stabilization project; a project that has involved city, state and federal agencies for the past twenty years.
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- NOAA Charting - Upper Cook Inlet
- Cook Inlet, Alaska
- NOAA contracted us to supply hydrographic surveying data for 54.3 square miles of Cook Inlet, Alaska. Afterward, 3,898 lineal miles of multibeam surveys, and 55 lineal miles of side scan sonar surveys were added to the contract.
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- NOAA - Nationwide IDIQ Contract for Hydrographic Surveys and Related Services
- Various Locations, U.S.A
- We understand NOAA's requirements and have the trained staff and equipment to perform their vital surveys. This 5-year term contract supports NOAA's nautical charting mission in Alaska, the Gulf of Mexico, and all other navigable waters of the U.S., including the East Coast, Pacific, Great Lakes, and U.S. territories.
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- Submarine Transmission Cable Installation
- Cook Inlet, Alaska
- We provided surveying and positioning services to support a 138-kilovolt (kV) submarine cable installation project. These services included a desk-top study, a pre-lay marine survey, a post-lay survey, Global Positioning System (GPS) control survey, and other support services during construction.
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- Kivalina Village Relocation
- Kivalina, Alaska
- We were contracted by the U.S. Army Corps of Engineers (USACE) - Alaska District to provide surveying services for the relocation of the village of Kivalina, Alaska. Services included aerial photography, topographic and hydrographic surveys, and support for field measurements of the existing town-site. The resulting services produced a storm surge analysis for possible relocation of the village.
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- Homer Spit Beach Condition Surveys
- Homer, Alaska
- Tasked by the U.S. Army Corps of Engineers (USACE) - Alaska District, TerraSond conducted beach condition surveys on the Homer Spit in Alaska. Ground topographic surveys were performed using Real-Time Kinematic (RTK) Global Positioning System (GPS) control methods.
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- NOAA Charting - Tongass Narrows
- Ketchikan, Alaska
- We surveyed 1,666 lineal miles of sea floor with multibeam sonars and verified 92 miles of shoreline using National Geodetic Survey (NGS) Remote Sensor Data (RSD). As a result of the hydrographic surveys, 50 separate items were investigated and mapped.
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- Navigation Channel Dredging - Knik Arm Shoal
- Cook Inlet, Alaska
- We provided USACE Class I dredge payment surveys that included a pre-dredge survey, 13 project condition surveys, and a post-dredge survey for the construction of a navigation channel along the southern flank of Knik Arm Shoal.
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- NOAA Charting - Kasaan Bay
- Kasaan Bay, Alaska
- NOAA contracted us to provide hydrographic surveying and support services in Kasaan Bay, Alaska. This survey was comprised of two Task Orders for multibeam surveying, shoreline verification, shoreline buffer, and Automated Wreck and Obstruction Information System (AWOIS) investigations on 13 sites.
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- Mine Debris Consolidation and Disposal
- Southwestern, Alaska
- Our surveyors conducted field surveys for the Bureau of Land Management (BLM) Red Devil Mine Debris Consolidation and Disposal project, then measured and established limits for the excavation of two monofill sites.
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- Harbor Mountain Road Design
- Sitka, Alaska
- We were contracted by the U.S. Department of Agriculture U.S. Forest Service, Alaska Region to perform a preliminary line survey and hydro-site surveys in preparation for the engineering upgrade design of an existing 4.8 mile (7.6 kilometer) mountain road used as the primary access to public recreational facilities.
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- Northeast Cape - White Alice Communications Systems Site Surveys
- St. Lawrence Island, Alaska
- Our surveyors conducted a primary project control survey, secondary control layout survey for engineering purposes, and post-demolition locate surveys for the White Alice Communications Systems (WACS) on St. Lawrence Island, Alaska.
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- USACE - Texas IDIQ Contract for Hydrographic Surveys and Related Services
- Various Locations, Texas
- Since 2003, TerraSond has provided and continues to provide hydrographic surveys and related support services for the Galveston District of the U.S. Army Corps of Engineers (USACE).
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- Channel Clearance Surveys - Texas
- Ingleside, Texas
- For this project, we were tasked by the U.S. Army Corps of Engineers- Galveston District, to conduct multiple high resolution repeat surveys for the Jewell-Fulton Channel, LaQuinta Channel, Corpus Christi Channel, and Aransas Pass Entrance Channel, using multibeam and sidescan sonar for data collection.
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- Conceptual Engineering Services
- Anchorage, Alaska
- We participated in a road design and construction plan for a bridge across Knik Arm, a branch of Cook Inlet near Anchorage, Alaska. Our office staff collected background information about land and sub-sea contours, inlet currents and ice, area biology and regulatory requirements to provide to our client.
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- Levee Integrity Surveys
- Stockton and Lodi, California
- An engineering firm contracted us to perform hydrographic surveys in Stockton and Lodi, California following the failure of a neighboring levee. This project involved collecting high resolution multibeam and sidescan sonar, at close range, in shallow water.
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- Channel Clearance Surveys - Louisiana
- Port of Iberia, Louisiana
- We conducted two channel clearance surveys in the Port of Iberia Channel. The first was a comprehensive bottom and debris survey using sidescan and multibeam sonars for the egress route for an oil platform module along an 8-mile stretch of the Iberia Navigation Canal. Additional geophysical surveys were done for clearance at two docks along the route at the Port of Iberia.
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- Kenai Peninsula Flood Plain Mapping
- Kenai, Alaska
- We were tasked by the U.S. Army Corps of Engineer Alaska District to survey the flood plain for three rivers on the Kenai Peninsula. Various surveys were conducted using aerial Light Detection and Ranging (LiDAR) sensors, single beam sonar systems and Real-Time Kinematic (RTK) Global Positioning System (GPS) topographic survey equipment.
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- Post Hurricane Rita Emergency Call-out Clearance Surveys
- Various Locations, Texas
- Our surveyors were tasked by the U.S. Army Corps of Engineers (USACE) - Galveston District to form immediate response teams to survey Texas ports the day after Hurricane Rita reached landfall. We acted fast to survey the Houston Ship Channel, and two other ports that were hit hard by the hurricane.
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- NOAA Charting - Port Clarence and Nome
- Norton Sound, Alaska
- NOAA tasked us with providing hydrographic surveying and support services for the Approaches to Nome and Port Clarence in the Norton Sound along the Bering Sea, Alaska.
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- Subsea Fiber Optic Cable System
- Northwest, U.S.A.
- In 2008, Alaska Communications System (ACS) installed a 2900 km submarine fiber optic cable across the Gulf of Alaska connecting Oregon and Alaska.
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- Surveys in Support of Mine Development
- Southwestern, Alaska
- Our surveyors used Static GPS to standardize project control on over 4,500 square miles of remote Alaska to support the development of a mineral mining operation. This project required a variety of surveying capabilities and technologies.
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- Shallow Hazards Geophysical Survey
- Alaska Outer Continental Shelf (OCS) Region
- An exploration, production, and support services company contracted us to collect data to support the future move of an oil rig platform in the Alaska Outer Continental Shelf (OCS) Region.
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- Dredging Surveys and Volume Computations
- Port of Anchorage, Alaska
- We were contracted by a dredging firm to conduct independent bathymetric surveys and compute dredge quantities for the U.S. Army Corps of Engineers (USACE) - Alaska District's Port of Anchorage project. The annual dredging cost for the Port of Anchorage is approximately $10 million.
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- Hydroelectric Turbine Sites for Alternative Energy Project
- Yukon River, Alaska
- Our staff conducted a geophysical reconnaissance of the Yukon River in Alaska to identify a safe and potentially productive installation site for an in-stream hydrokinetic turbine. This information enabled the client to better understand the resource available to the community for power production and to establish a cost and engineering strategy for future build out.
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- Pipeline Construction to Osprey Platform
- Cook Inlet, Alaska
- We provided support services for a pipeline installation program in a very rough area of Cook Inlet that was exposed to weather from the north and south.
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