Geotechnical Investigation and Reporting. 1. The purpose of the geotechnical study will be to provide information for use in design of typical subgrade treatment and pavement section for the proposed road. This study will include the following evaluations:
a. Subsurface soil, rock and groundwater conditions on the site to depths that would be significantly affected by the street.
b. Engineering characterization of the subsurface materials encountered.
c. Typical asphalt concrete pavement sections including subgrade treatment and preparation, material thickness, and material requirements.
d. Recommendations regarding earthwork, including grading and excavation, backfilling and compaction, and possible construction problems reasonably to be expected.
2. Subsurface soil and/or rock conditions at the site will be explored by drilling test borings. It is estimated the necessary information will be provided by drilling ten
Geotechnical Investigation and Reporting. 3rd St SW (Sage) (Not to proceed without direction from City) CONSULTANT will retain Sage Geotechnical, LLC (Sage) to provide limited geotechnical engineering services in support of the project.
Geotechnical Investigation and Reporting. 3rd St SW (Sage) (Requires written notice to proceed from City) All design work is funded by the City of Tumwater. A portion of the construction funding is provided by the state through the state’s Safe Routes to School program. • No Right-of-Way acquisition will be part of this project. • Temporary Construction Easements (TCE) will be needed. • The City of Tumwater will compile the front-end contract documents. • The City of Tumwater will supply SCJ with City specific special provisions. • SCJ will provide Bid Tabs in excel using the City of Tumwater’s standard excel format. • SCJ will compile special provisions. • Private utilities may be undergrounded. Work for this Phase will be scoped, but utilization of funds may not be required. • Funding is State Funding and will not require NEPA or Local Programs Environmental Coordination.
Geotechnical Investigation and Reporting. CONSULTANT will retain Landau and Associates Inc. (LAI) to provide geotechnical engineering services in support of Project. LAI’s efforts will include soil sampling and testing to determine information required for the stormwater design and collecting and testing soil samples located in areas of R/W acquisition. See Figure 4 and Figure 5. Geotechnical services for the RAB and FRONTAGE project sites are included in this task. One geotechnical report will be prepared to address the soil conditions at both project sites and used for the stormwater designs of the RAB and FRONTAGE projects. HDR will review and provide comment on the Draft Technical Memorandum. The following services will be provided by XXX. This subtask includes the following efforts: • Gather and review available published geotechnical and geologic subsurface information. • Visit the site to observe existing conditions and excavator access for field explorations. • Notify the Utility Notification Center for public utility clearance. Subcontract a private utility-locating service to locate utilities outside of public easements. • Submit a traffic control plan for review by the CITY. • Prepare a health and safety plan and QA/QC plan for review by CONSULTANT. • Prepare subcontractor agreements for excavating, private utility-locating, and traffic control services. Coordinate fieldwork schedule with subcontractors. • Determine need for mounding analysis following the City of Tumwater Design and Erosion Control Manual.
Geotechnical Investigation and Reporting. Primary Subcontractor shall provide geotechnical investigations along new levee alignments and at proposed bridge abutments, geotechnical recommendations on levee construction (e.g., materials, settlement, design parameters), and geotechnical recommendations of bridge abutments (e.g., parameters for pile calculations). The investigation shall include, but is not limited to: Review of existing data Developing an exploration of work plan Laboratory testing of subsurface materials Developing profiles of subsurface conditions Data analysis Developing recommendations for design and construction of new setback levee and bridge foundations The results of the investigation shall be summarized and submitted in a report along with a site plan, boring logs, and results of laboratory testing.
