SUBSURFACE UTILITY INVESTIGATION. The Professional shall be compensated as an Additional Service for providing subsurface utility investigation services, to determine the location and identification of unknown, unobservable underground facilities, utilities, tanks, and other buried objects to the extent required for construction of the Project. Prospecting techniques including radio frequency electromagnetic, magnetic acoustic emission sonics, terrain conductivity, ground penetrating radar, and select excavation shall be used to provide a comprehensive horizontal map and give an indication of vertical position. Information obtained using this service shall be shown on the Site Survey drawings and on the Construction documents.
SUBSURFACE UTILITY INVESTIGATION. The CONSULTANT shall make or cause to be made a complete subsurface utility investigation including potholing, televising, and location services to identify the projects known conflict points and missing utility location information needed to complete the project. CONSULTANT will cause soil boring(s) and rock soundings to be performed for the construction of the proposed works included in this agreement. The design shall take into consideration findings of the soils report. Information required to establish a basis of bid shall be included in the contract documents.
SUBSURFACE UTILITY INVESTIGATION. 5.2.1.5.1 Provide SUE Quality Levels (QL) A through D in accordance with ASCE “Standard Guidelines for the Collection and Depiction of Existing Subsurface Utility Data”. QL-A, known as “locating”, is the highest level of accuracy presently available and involves nondestructive exposure of underground utilities for identifying material, use, size, and condition.
5.2.1.5.2 Perform up to 30 exploratory excavations for existing power, telecommunication, water, sewer, drainage, and other identified facilities within the project corridor. The locations of the excavations shall be determined by consultant based on City record documents, aboveground visible features, and responses provided from the 811 Design Ticket.
5.2.1.5.3 Provide a summary report of the exploratory digging findings that includes horizontal and vertical measurements based on fixed objects in the field, estimated size of the buried facility, and assumed material.
SUBSURFACE UTILITY INVESTIGATION. The Department shall compensate the Professional as an Additional Service for providing subsurface utility investigation services, to determine the location and identification of unknown, unobservable underground facilities, utilities, tanks, and other buried objects to the extent required for construction of the Project. Prospecting techniques including radio frequency electromagnetic, magnetic acoustic emission sonics, terrain conductivity, ground penetrating radar, and select excavation shall be used by the Professional to provide a comprehensive horizontal map and give an indication of vertical position. The Professional shall show the information obtained using this service on the Plat of Survey for the Project site.
SUBSURFACE UTILITY INVESTIGATION. The Historical Design Business shall be compensated as an additional service for providing subsurface utility investigation services, to determine the location and identification of unknown, unobservable underground facilities, utilities, tanks and other buried objects to the extent required for construction of various Historical Design projects. Prospecting techniques including radio frequency electromagnetic, magnetic acoustic emission sonics, terrain conductivity, ground penetrating radar and select excavation shall be used to provide a comprehensive horizontal map and give an indication of vertical position. Information obtained using this service shall be shown on the Plat of Survey of various Historical Design projects Site.
SUBSURFACE UTILITY INVESTIGATION. The PROFESSIONAL shall be compensated as an additional service for providing subsurface utility investigation services, to determine the location and identification of unknown, unobservable underground facilities, utilities, tanks and other buried objects to the extent required for construction of the Project. Prospecting techniques including radio frequency electromagnetic, magnetic acoustic emission sonics, terrain conductivity, ground penetrating radar and select excavation shall be used to provide a comprehensive horizontal map and give an indication of vertical position. Information obtained using this service shall be shown on the Plat of Survey of the Project Site.
SUBSURFACE UTILITY INVESTIGATION a. Trihydro’s subsurface utility engineering (SUE) subconsultant will provide surface utility locating and potholing activities. The SUE subconsultant will review utility record data and provide surface markings for identified utilities. Utility markings will be collected by Trihydro’s surveyor and incorporated into the design plans. Trihydro will correlate surveyed utilities to the proposed sanitary sewer, potable water, and storm sewer alignments to identify potential conflicts. Trihydro will prepare a proposed Potholing Plan at each phase’s 60% Design stage to identify precise vertical and horizontal utility locations. The Potholing Plans will be presented for the City’s review prior to potholing activities.
b. SUE investigations will include Quality Level (QL) A and B. QL A will consist of vacuum excavation of pipes at up to twenty-five (25) potential conflict locations identified during design. Subtasks 4 and 6: 60% Design – Phase I and Phase II further discuss Potholing Plans.
