Construction Databook

Site work involves working with various types of soils and dealing with the unexpected even in the presence of extensive soil test borings.
Even prior to commencing construction, a thorough investigation of the site, both visually and after a review of available geo-technical reports, the contractor will be more prepared for what lies ahead.
Does a visual inspection of the site reveal any clues to the composition and consistency of the soil?
Are there rock outcroppings? If so, what is the nature of the rock?
Is there any indication of the presence of ground water close to the surface of the site?
Do any remains of abandoned subsurface structures appear in areas where excavation will be required?
Do any structures require demolition in areas where new structures are to be built or where underground utilities are to be installed?
Are any utilities absent that might be required during construction (i.e., water, electric power, telephone lines, sanitary and storm sewers, or gas mains)? Are any of these utilities in areas where new construction will be required and are to be relocated?
What do the soil test borings reveal?
Analyzing a typical soil test boring should start with a look at the consistency of the soil, as reported on the report, the presence or absence of rock or any other underground obstructions, the level at which water was observed, and the blow count (an indication of soil-bearing capacity). The blows per foot also reveal...