Topographic Surveying and Mapping
Topographic surveys gather data about natural and man-made features of the land, as well as its elevations. For these surveys our staff will establish horizontal and vertical control that will serve as the framework of the survey; determine horizontal location and elevation (side shots) of ground points to provide enough data for plotting the map;locate features that may be required by the survey; compute distances, angles, and elevations; and prepare a three-dimensional topographic map.
Categories:
Topographic survey of mountain road.
Related Projects:
- 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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- 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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- 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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- 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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- 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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- 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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- 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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- 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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