Settlement Plates. Settlement plates shall be installed by the Contractor in the fill template as shown on the Plans prior to beach and dune construction.
Settlement Plates. The Contractor shall survey and record the elevation of the top of pipe and existing grade at each settlement plate location to the nearest tenth of a foot (0.1 ft) NAVD88 as well as its Northing and Easting coordinates in Louisiana State Plane South, NAD 83, U.S. survey feet. The top of pipe elevation, horizontal position, existing grade, and distance from settlement plate base to the top of pipe shall be recorded upon installation. The top of pipe elevation and existing grade at the settlement plate shall be recorded weekly throughout the duration of construction. If the settlement plate pipe is extended through an attached extension to the threaded top end, then elevations shall be recorded as described above prior to installation of the extension and immediately after installation of the extension. An Excel spreadsheet of the elevation and position data shall be provided to the Owner and Engineer.
Settlement Plates. The initial and final top of pipe elevations; initial and final existing grade elevations; initial and final constructed settlement plate distance from the settlement plate base to the top of pipe and lengths of any extensions added; and the horizontal positions shall be shown in tabular form and in plan view on the As-Built survey drawings.
Settlement Plates. Description: Includes steel plate and initial pipe to initial depth, furnished and installed.
Settlement Plates. Prior to system startup, the County will install monuments (settlement plates) to monitor settlement caused by the degradation of the waste. These settlement plates will be strategically located around xxxxx and trenches to measure surface movements during the study (refer to the Layout in Attachment V). Plates will consist of 4-6 inch diameter concrete or wooden posts embedded at least 2 feet into the upper surface of the waste. If necessary, they will be grouted in place. The top elevation of each plate will be surveyed prior to liquid injection. The County plans to monitor these settlement plates at least monthly, but will do so more frequently if information suggests that settlement is occurring at a rapid rate. At least one plate will be located in a control area that is adjacent to the test area and outside the zone of influence for the liquid injection system. This control area will measure normal settlement rates as a comparison. Additionally, a stable elevation benchmark will be established to ensure that all readings are based on the same baseline elevation. Annual aerial topographic surveys will also be performed to aid in the evaluation of settlement and the effectiveness of the leachate recirculation.
Settlement Plates. Settlement plates will be strategically located around xxxxx and trenches to measure surface movements during the study (refer to the Layout in Attachment V). Plates will consist of 4-6 inch diameter concrete or wooden posts embedded at least 2 feet into the upper surface of the waste. If necessary, they will be grouted in place. The top elevation of each plate will be surveyed prior to liquid injection. The frequency of readings are anticipated to be at least monthly, but will occur more frequently if information suggests that settlement is occurring at a rapid rate. At least one plate will be located in a control area that is adjacent to the test area and outside the zone of influence for the liquid injection system. This control area will measure normal settlement rates as a comparison. Additionally, a stable elevation benchmark will be established to ensure that all readings are based on the same baseline elevation.
