16”HP gas main, Phase I, Phase II, Phase III; Kent, WA, Puget Sound Energy


16”HP gas main, Phase I, Phase II, Phase III; Kent, WA, Puget Sound Energy

White Shield assisted PSE with their proposed 16” high-pressure (HP) gas main pipeline near Kent, WA along South 272nd Street and the West Valley Highway. White Shield provided a complete route and site topography survey for the project, which began near the intersection of South 272nd street and Star Lake Road and ended at the intersection of South 259th Street and 80th Avenue South. The complete survey length was approximately 27,500 feet not including the substation. Robotic and reflectorless
total stations were used during this project to ensure safety of the field crew and to increase efficiency of data collection. By utilizing these instruments White Shield eliminated the dangers associated with locating jersey barriers, lane lines or edge of pavement on highly traveled roads. A project vicinity map and plan view of the pipeline route was included. White Shield also provided PSE with an elevation profile along the centerline of the ROW and of SR-167 where it crossed the anticipated pipeline route, and property boundaries with tax ID numbers, easement boundaries, and street names including railroad crossings. The edge of pavements, sidewalks, driveways, curbs and gutters, roadway striping and other pavement markings were identified, and building or structures within 100 feet of the ROW were noted as well. White Shield provided ditch flow lines and top of slope, and above and below
ground utilities including sanitary sewer, storm water, potable water, power, traffic signals, cable and gas. A hydrographic survey was also performed on the Green River, which consisted of utilizing sounding devices to measure depth, and surveying the surface of the water elevation.