Geotechnical Investigations. The Xxxxxxx Group (Xxxxxxx) will drill and observe ten air‐track borings to depths of approximately 15 feet below ground surface along the sewer alignments for Xxxxxxx, Stonehaven, TriPeaks, Forum, and Desert Skies alignments. Xxxxxxx will prepare traffic control plans for City approval and will provide traffic control during boring activities, and will clear drilling locations for underground utilities using a utility locator. Xxxxxxx will prepare a technical memorandum to summarize the subsurface conditions, where explored, and provide geotechnical recommendations.
Geotechnical Investigations. Engineer and its geotechnical drilling sub-consultant will perform a geotechnical investigation along the proposed alignment to observe subsurface conditions and support the design of the new gravity sewer. Engineer assumes the entire alignment will be constructed by open-cut, with the exception of the US-70 road crossing. All borings are assumed to be performed in unpaved areas. The scope of the subsurface investigation will consist of the following: Perform Standard Penetration Test (SPT) borings at approximately 500-foot-intervals along the alignment. Up to 16 borings will be drilled. In general, drill depths will extend to 2 feet below the proposed pipe invert. Observe and log soil and groundwater conditions in all borings. SPT split-spoon sampling will be performed in general accordance with ASTM D1586 and soil samples will be given a USCS classification. Where refusal is encountered above the planned depth of boring, rock coring will be performed to at least a depth of 2 feet below the proposed pipe invert. For trenchless borings (US-70), rock coring will be performed to extend borings to the shaft bottom. Borings where the pipe is proposed to be installed via open-cut will be backfilled with cuttings. Borings at the proposed trenchless crossing will be backfilled with grout. Conduct laboratory testing on selected soil samples to confirm soil classification, estimate engineering properties, and determine suitability for re-use as backfill materials. Upon completion of the geotechnical investigation, Engineer will prepare a geotechnical data report summarizing the subsurface conditions observed in the borings and containing all data (boring logs, laboratory testing, etc.) collected during the investigation. Horizontal location of the test hole shall be located using GPS services.
Geotechnical Investigations. The Contractor performs his own geotechnical site investigations he considers necessary to assist in the design of his works. The Contractor identifies and specifies all work and tests to be done. Geotechnical information provided to the Contractor during the tender phase is only for tender purposes and the Contractor is required to verify all geotechnical investigations to be conducted and condition during the execution of the project. The Contractor accepts full responsibility for all ground conditions and provides adequate foundation design.
Geotechnical Investigations. The proposed project is to remove the existing single-lane bridge crossing of Xxxxx Creek and replace it with a new bridge structure. The existing railroad flatcar bridge is 120-feet long and 13-feet wide. According to Caltrans bridge inspection reports, the existing foundations are spread footings at the abutments and steel H-piles at the piers and the structure is considered scour critical. Geologic mapping shows the site at the contact between Jurassic-Cretaceous Fransican Formation and Plio-Pleistocene Non-Marine sediments. The alluvial sediments are typically not associated with Naturally Occurring Asbestos (NOA) but this will be evaluated during the ISA. Bedrock is not exposed in the channel and bedrock may be deep below ground surface based on the surrounding terrain and geologic mapping. Bridge structure type has been tentatively defined in the RFP. It is indicated to be a reinforced concrete slab bridge in the range of 150±ft long and 22±ft wide supported on reinforced concrete wall-abutments. Suggested foundation types in the RFP include driven piles or CIDH piles to 60-ft depths. Depending on the consistency of the Plio-Pleistocene materials and the scour potential for the bridge, spread footings may also be a viable alternative for the bridge. Abutment locations and depth of pile caps will be established, in part, on the basis of projected channel grade and bank slope configuration/stability. It is assumed that abutments will be located at equal distances from the thread of the channel. Bridge line and grade are expected to generally match existing roadway. The existing roadway approaches appear to be on native ground (terrace materials) and it is understood that the roadway will be widened to accommodate wider travel lanes and shoulders.
Geotechnical Investigations. CONSULTANT shall perform a geotechnical investigation for the PROJECT consisting of the following tasks: Review Available Information and Data, Conduct Field Exploration and Laboratory Testing Programs, Perform Engineering Analyses/Evaluations, and Prepare Geotechnical Reports. The scope of each subtask is described below.
Geotechnical Investigations. Consultant shall conduct a geotechnical investigation that includes the following items of work:
Geotechnical Investigations. For the purposes of gathering engineering data and for project planning, it may be necessary for a Requester to conduct limited geotechnical investigations at locations where a proposed action requiring 408 permission may take place before a full inventory and evaluation of historic properties is completed for the proposed action and before the undertaking is defined.
Geotechnical Investigations. The scope of services below includes the geotechnical investigation and design phase of the project. The geotechnical services during the construction phase are included in Section 2.7.
Geotechnical Investigations. The Contractor will be provided with the geotechnical information and studies done by Others.
Geotechnical Investigations a. Draft Geotechnical Report
