Common use of Geotechnical Investigation Clause in Contracts

Geotechnical Investigation. Utilities will be located prior to geotechnical exploration. Subsurface exploration will be performed for single points were the foundation of signal poles are to be in each intersection corner. Pole and mast- arm layouts will be assumed, so WSDOT standard specifications can be reviewed to determine typical foundation depths. The subsurface drilling will be performed for a depth of the proposed foundation plus approximately five feet to identify the thickness of solids, location of rocks or other obstruction, ground- water conditions, and to assess local conditions. Soil capacities will be assessed via laboratory testing. The testing and rock located analyses will inform whether foundation size and depth can correlate with WSDOT standard specifications, or if alternate foundation design would be required (or if foundations should be relocated) in all intersection corners. The project would initiate with a study to help establish the optimal operating condition of the signal, as based on a review of existing and forecast traffic volumes provided by City Engineers. The study would address phasing and timing plans for the AM peak hour, noon/midday peak, PM peak hour, and an off- hours/weekend plan. The provision of a technical memorandum outlining conclusions would be provided to the City for concurrency, and to affirm signal designs. The project includes plans and specifications regarding designs for: ♦ Traffic signal assembly including signal heads, luminaires, poles, mast arms, signal heads, radar detection, pull/controller boxes, conduits, preemptive devices, circuits, power connection, and interconnect, etc. ♦ Pedestrian crossing devices (countdown signals, pushbuttons, etc.). ♦ Railroad intertie and bicycle detection emphases. ♦ Roadway geometrics/striping and signage. ♦ Potential relocation of utility equipment, as needed (power, utility boxes, vaults, etc.). Project deliverables include the submittal of a design plans and specifications provided for 60 percent, 90 percent, and 100-percent final designs. The 60 percent design establish the signal, geometric/striping, and signing designs. Extensive comments are anticipated at this stage of the project. The 90 percent submittal would address City comments to the 60% submittal and provide draft specifications and a bid estimate. The 90% review comments will be addressed, resulting in development of final 100 percent designs, specifications, and estimates. Final submittals will be stamped by a professional engineer licensed in Washington. Plan sheets would include: ♦ Project identification/description sheet (cover), ♦ Legend and Abbreviations, ♦ Survey Control and Alignment Plan, ♦ Existing conditions base-map, ♦ Demolition/removal plan, ♦ Traffic Signal Detail Plan, ♦ Signal Wiring Plan, ♦ Signing and striping plan, ♦ Signal/Project Specifications Plan. ♦ An Interconnect sheet/Details. Standard WSDOT Specifications would be developed in coordination with the City for the signal system. Our scope assumes any traffic control plans would be developed by the contractor per specifications provided with the PS&E submittal. This (lack of a traffic control plan) is typical on signal design projects (where no reconstruct occurs). However, a traffic control plan can be provided if desired by the City.

Geotechnical Investigation. Utilities will be located prior to A geotechnical exploration. Subsurface exploration investigation will be performed for single points were along the foundation pipeline route to characterize subsurface conditions at boring locations and to evaluate the likelihood of signal poles are rock being encountered along portions of the pipeline alignment. The Engineer will subcontract with a geotechnical subconsultant. The geotechnical subconsultant will subcontract with a traffic control firm to be in each intersection cornerprovide temporary traffic control during the proposed field exploration work. Pole The geotechnical investigation will include the following: • Obtaining existing and mast- arm layouts available past investigationsand county road construction records, if possible. • Conducting a site reconnaissance of the planned pipeline route to identify planned exploration locations. • Conducting an exploration program advancing five small diameter explorations along the length of the project to a planned depth of 8-10 feet below the planned subgrade or trench bottom with a trailer mounted solid stem auger. The solid stem auger will advance a 4-inch hole. Disturbed Standard Penetration Test (SPT) samples will be assumedobtained at 2.5-foot intervals. Rock coring is not included if bedrock is encountered. • If groundwater is encountered, so WSDOT standard specifications can the depth to the water level will be reviewed measured in the borehole; after completion, holes will be backfilled according to determine typical foundation depthsState regulations. • The samples obtained will be visually characterized and selected samples will be tested in the laboratory for moisture content and other appropriate tests, and probe or auger logs developed. • The data collected and, if bedrock is encountered, recommendations related to trench excavation, subgrade preparation and backfilling will be summarized in a Geotechnical Report. The subsurface drilling geotechnical report which will be performed provided in draft form for a depth of the proposed foundation plus approximately five feet to identify the thickness of solids, location of rocks or other obstruction, ground- water conditions, and to assess local conditions. Soil capacities will be assessed via laboratory testingClient’s review. The testing and rock located analyses will inform whether foundation size and depth can correlate with WSDOT standard specifications, or if alternate foundation design would be required (or if foundations should be relocated) in all intersection corners. The project would initiate with a study to help establish the optimal operating condition of the signal, as based on a review of existing and forecast traffic volumes provided by City Engineers. The study would address phasing and timing plans for the AM peak hour, noon/midday peak, PM peak hour, and an off- hours/weekend plan. The provision of a technical memorandum outlining conclusions would be provided to the City for concurrency, and to affirm signal designs. The project includes plans and specifications regarding designs for: ♦ Traffic signal assembly including signal heads, luminaires, poles, mast arms, signal heads, radar detection, pull/controller boxes, conduits, preemptive devices, circuits, power connection, and interconnect, etc. ♦ Pedestrian crossing devices (countdown signals, pushbuttons, etc.). ♦ Railroad intertie and bicycle detection emphases. ♦ Roadway geometrics/striping and signage. ♦ Potential relocation of utility equipment, as needed (power, utility boxes, vaults, etc.). Project deliverables include the submittal of a design plans and specifications provided for 60 percent, 90 percent, and 100-percent final designs. The 60 percent design establish the signal, geometric/striping, and signing designs. Extensive comments are anticipated at this stage of the project. The 90 percent submittal would address City comments to the 60% submittal and provide draft specifications and a bid estimate. The 90% Client’s review comments will be addressed, resulting in development of addressed and a final 100 percent designs, specifications, and estimates. Final submittals report will be stamped by a professional engineer licensed in Washingtonprovided. Plan sheets would include: ♦ Project identification/description sheet (cover)Additionally, ♦ Legend and Abbreviations, ♦ Survey Control and Alignment Plan, ♦ Existing conditions base-map, ♦ Demolition/removal plan, ♦ Traffic Signal Detail Plan, ♦ Signal Wiring Plan, ♦ Signing and striping plan, ♦ Signal/Project Specifications Plan. ♦ An Interconnect sheet/Details. Standard WSDOT Specifications would be developed in coordination with only the City for the signal system. Our scope assumes any traffic control plans would be developed by the contractor per specifications provided with the PS&E submittal. This (lack of a traffic control plan) is typical on signal design projects (where no reconstruct occurs). However, a traffic control plan can geotechnical data will be provided if desired by the Cityto prospective bidders.

Geotechnical Investigation. Utilities This scope of services shall be provided by a Subconsultant, ATC Group Services, LLC (ATC). The scope of work addresses the preliminary subsurface investigation and ground water level monitoring well installations requested for the Project. Information developed from this scope of work will be located prior to used by the planners and design engineers for preliminary evaluation of the general soil and ground water conditions in the vicinity of the proposed interchanges and along the alignments of the storm sewers. The subsurface data generated will be used for planning the earth-related components of the proposed underpasses at the interchanges. The scope of this preliminary subsurface investigation does not include the required final geotechnical explorationengineering investigations for the proposed construction projects. Subsurface exploration Final geotechnical engineering investigations compatible with the INDOT Office of Geotechnical Services requirements will be performed later and supplemented to this agreement for single points were the foundation of signal poles are to be in each intersection cornerand storm water outfall lines once the project plans have been developed sufficiently (i.e., subsequent to Stage 1 plans). Pole and mast- arm layouts Notwithstanding any provision elsewhere in this Contract to the contrary, ATC rather than the CONSULTANT will be assumeddirectly responsible to the LPA for the proper performance of the services in this Subsection E. Review, so WSDOT standard specifications can evaluation and QM/QC of ATC’s preliminary subsurface investigation, including monitoring well installations, are not included in CONSULTANT’s scope of services, and shall be reviewed the sole responsibility of the LPA, LPA’s Representative or its designee. CONSULTANT’s sole scope of services regarding ATC’s preliminary subsurface investigation is to determine typical foundation depthssend ATC’s data report to the LPA when DLZ receives it. The LPA releases CONSULTANT from all responsibility and liability for the preliminary subsurface drilling investigation. 1. The scope of work for this preliminary subsurface investigation includes the following: a. A total of up to 8 test borings with ground water level observation ▇▇▇▇▇ installed to a maximum depth of 40 ft along the two storm water drainage outfall lines. b. Continuous split-barrel samples will be obtained in the observation well holes for the storm water drainage outfall lines. c. A total of up to 20 test borings with ground water level observation ▇▇▇▇▇ installed at completion of the test borings will be drilled to depths varying from 25 ft to 60 ft for the four ▇▇▇▇▇ ▇▇▇▇ ▇▇ mainline intersections (126th Street, ▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇▇ and 146th Street). d. Split-barrel samples will be obtained in the mainline interchange borings/observation ▇▇▇▇▇ at 2.5 ft intervals. e. 5-feet long sections of 2-inch diameter slotted PVC pipes will be installed at the bottoms of the ground water level observation ▇▇▇▇▇ and solid 2-inch diameter PVC riser pipes will be installed to the ground surface. f. Sand backfill will be placed around the slotted screen portion of the ground water level observation well pipes. g. The soils above the sand backfill for the slotted screen will be allowed to cave-in and auger cuttings will be used to backfill around riser pipes above the cave-in depths. h. The annulus around the top approximately 5 ft of the ground water level observation ▇▇▇▇▇ will be filled with bentonite. i. Manholes or protective covers will be placed at the ground surface of the observation ▇▇▇▇▇. j. The test borings along the storm drainage outfall sewer lines (where no observation ▇▇▇▇▇ will be installed) will be backfilled with bentonite by tremie. k. The ground water level monitoring ▇▇▇▇▇ will be left in-place indefinitely until instructed to abandon in-place. Once determined that the ground water level monitoring ▇▇▇▇▇ are no longer needed, the ▇▇▇▇▇ will be abandoned in-place by filling with bentonite. l. Laboratory testing will be performed for a depth as determined appropriate by the geotechnical engineer on selected soil samples in order to characterize the engineering properties of the proposed foundation plus approximately five feet to identify the thickness of solids, location of rocks or other obstruction, ground- water conditions, and to assess local conditions. Soil capacities subsurface soils. m. A data report will be assessed via developed at the completion of the project and will include the completed test boring logs in accordance with the INDOT Office of Geotechnical Services requirements and laboratory testingtest results. 2. This scope of services is based on the following assumptions, conditions and exclusions: a. No special safety orientation or training will be required in order to perform work on site. b. No special badging or security clearance measures are required to perform the work. c. All field work can be performed during normal weekday working hours. d. All auger cuttings that cannot be placed to backfill the boreholes can be distributed on-site. e. The scope of this investigation does not include characterization or containerization of the auger-cuttings and drilling fluids; or the disposal of the auger cuttings, drillings fluids and/or containers. f. The work can be performed without interference from or an agreement with a labor union. g. This proposal does not include costs for restitution for crop or landscape damage and ATC will not be responsible for damage to crops and landscaping. h. The scope of this investigation does not include identification or delineation of wetlands or floodplains. i. The subsurface investigation outlined in this proposal assumes that there are no hazardous materials in the soil or in the ground water underlying the site and this study is not designed to detect or identify such materials. If it becomes apparent during the field investigation that hazardous materials may be present, field operations will be terminated. The testing and rock located analyses will inform whether foundation size and depth can correlate with WSDOT standard specifications, or if alternate foundation design investigation would be required (or if foundations should be relocated) in all intersection corners. The project would initiate with a study to help establish the optimal operating condition resumed only after renegotiation of the signal, as based on a review scope of existing services and forecast traffic volumes provided by City Engineersfees to cover appropriate health and safety precautions and proper consideration of the new information. j. Borings will only be drilled where accessible to an all-terrain-vehicle mounted drill rig. The study would address phasing No clearing or bulldozer work is included. k. It is assumed that the LPA or LPA’s representative will arrange for right-of-entry onto private property. l. LPA’s Project Design Team will monitor ground water levels in the mainline intersection observation ▇▇▇▇▇ and timing plans for the AM peak hourobservation ▇▇▇▇▇ for the storm water drainage outfall. m. If required, noon/midday peak, PM peak hour, and an off- hours/weekend plan. The provision of a technical memorandum outlining conclusions would be provided to the City for concurrency, and to affirm signal designs. The project includes plans and specifications regarding designs for: ♦ Traffic signal assembly including signal heads, luminaires, poles, mast arms, signal heads, radar detection, pull/controller boxes, conduits, preemptive devices, circuits, power connection, and interconnect, etc. ♦ Pedestrian crossing devices (countdown signals, pushbuttons, etc.). ♦ Railroad intertie and bicycle detection emphases. ♦ Roadway geometrics/striping and signage. ♦ Potential relocation of utility equipment, as needed (power, utility boxes, vaults, etc.). Project deliverables include the submittal of a design plans and specifications provided for 60 percent, 90 percent, and 100INDOT right-percent final designs. The 60 percent design establish the signal, geometric/striping, and signing designs. Extensive comments are anticipated at this stage of the project. The 90 percent submittal would address City comments to the 60% submittal and provide draft specifications and a bid estimate. The 90% review comments of-way permit will be addressed, resulting in development of final 100 percent designs, specifications, and estimatesrequested. Final submittals It is assumed that any permits required by the LPA will be stamped by a professional engineer licensed in Washington. Plan sheets would include: ♦ Project identification/description sheet (cover), ♦ Legend and Abbreviations, ♦ Survey Control and Alignment Plan, ♦ Existing conditions base-map, ♦ Demolition/removal plan, ♦ Traffic Signal Detail Plan, ♦ Signal Wiring Plan, ♦ Signing and striping plan, ♦ Signal/Project Specifications Plan. ♦ An Interconnect sheet/Details. Standard WSDOT Specifications would be developed in coordination with the City for the signal system. Our scope assumes any traffic control plans would be developed by the contractor per specifications provided with the PS&E submittal. This (lack of a traffic control plan) is typical on signal design projects (where no reconstruct occurs). However, a traffic control plan can be provided if desired by the Citywaived.

Geotechnical Investigation. Utilities ▇▇▇▇ & ▇▇▇▇ will be located prior subcontract with a geotechnical subconsultant to geotechnical exploration. Subsurface exploration will be performed for single points were obtain information on the foundation of signal poles are to be in each intersection corner. Pole and mast- arm layouts will be assumed, so WSDOT standard specifications can be reviewed to determine typical foundation depthsgeneral subsurface soil conditions along the project routes. The subsurface drilling materials encountered will then be evaluated with respect to the available project characteristics. A geotechnical report will be performed prepared to include the following: • Identification of the existing groundwater levels at the time of the field work and estimated normal seasonal high groundwater table. • Classify and stratify soil samples in the laboratory using the Unified Soil Classification System and conduct a laboratory testing program • General location and description of potentially deleterious materials encountered in the borings which may have an impact on the proposed construction. • Evaluation of the subsurface soil properties and general recommendations for trenchless and open cut excavation pipe installation. • General site preparation recommendations including the suitability of excavated soils for use as backfill. The geotechnical investigation will include performance of Standard Penetration Test (SPT) borings advanced to a depth of 25 feet along the proposed foundation plus approximately existing sanitary sewer alignments. Samples will be collected, and Standard Penetration Test resistances will be measured continuously for the top ten feet and at approximate intervals of five feet to identify thereafter. Upon completion, the thickness of solids, location of rocks or other obstruction, ground- water conditions, and to assess local conditions. Soil capacities boreholes will be assessed via laboratory testingbackfilled with bentonite chips. The testing and rock located analyses will inform whether foundation size and depth can correlate with WSDOT standard specifications, or if alternate foundation design would be required (or if foundations should be relocated) in all intersection corners. The project would initiate with a study to help establish the optimal operating condition Results of the signal, as based on a review of existing subsurface exploration and forecast traffic volumes provided by City Engineers. The study would address phasing and timing plans for the AM peak hour, noon/midday peak, PM peak hour, and an off- hours/weekend plan. The provision of a technical memorandum outlining conclusions would be provided to the City for concurrency, and to affirm signal designs. The project includes plans and specifications regarding designs for: ♦ Traffic signal assembly including signal heads, luminaires, poles, mast arms, signal heads, radar detection, pull/controller boxes, conduits, preemptive devices, circuits, power connection, and interconnect, etc. ♦ Pedestrian crossing devices (countdown signals, pushbuttons, etc.). ♦ Railroad intertie and bicycle detection emphases. ♦ Roadway geometrics/striping and signage. ♦ Potential relocation of utility equipment, as needed (power, utility boxes, vaults, etc.). Project deliverables include the submittal of a design plans and specifications provided for 60 percent, 90 percent, and 100-percent final designs. The 60 percent design establish the signal, geometric/striping, and signing designs. Extensive comments are anticipated at this stage of the project. The 90 percent submittal would address City comments to the 60% submittal and provide draft specifications and a bid estimate. The 90% review comments engineering analysis will be addressed, resulting presented in development of final 100 percent designs, specifications, a written report signed and estimates. Final submittals will be stamped sealed by a professional engineer licensed specializing in Washingtongeotechnical engineering. Plan sheets would include: ♦ Project identification/description sheet (cover), ♦ Legend The number and Abbreviations, ♦ Survey Control and Alignment Plan, ♦ Existing conditions base-map, ♦ Demolition/removal plan, ♦ Traffic Signal Detail Plan, ♦ Signal Wiring Plan, ♦ Signing and striping plan, ♦ Signal/Project Specifications Plan. ♦ An Interconnect sheet/Details. Standard WSDOT Specifications would locations of the SPT’s will be developed in coordination with the City for the signal system. Our scope assumes any traffic control plans would be developed determined by the contractor per specifications provided with the PS&E submittal. This (lack of a traffic control plan) is typical on signal design projects (where no reconstruct occurs). However, a traffic control plan can be provided if desired by the City▇▇▇▇ & ▇▇▇▇.