3-Soil Boring Plan and Logs 2025.pdf

This is a Soil Boring Plan and Logs document prepared for the Ontario Street Drainage Improvements project (Project 3009-1026) in Illinois. The document presents the results of subsurface investigation conducted to support the design and planning of drainage improvements along Ontario Street. The soil boring plan identifies boring locations, drilling depths, and boring methodologies necessary to characterize soil and groundwater conditions along the project corridor. The boring logs provide detailed stratigraphic information, soil classifications, and groundwater observations at each boring location, essential data for engineers to design appropriate drainage systems and foundation requirements for the proposed improvements. These geotechnical findings inform the project's engineering design phase and support the overall scope of work for the drainage improvement initiative.

The soil boring data and logs serve as supporting technical documentation for the procurement process and help establish baseline conditions for the project. This information is critical for contractors to understand subsurface conditions and prepare accurate bids for the Ontario Street Drainage Improvements project. The geotechnical investigation findings reduce construction risk by providing advance knowledge of soil conditions, depth to groundwater, and bearing capacity information that contractors must account for in their project schedules, equipment selection, and cost estimates.