Site Planning

Question 1

Soil boring are usually taken at intervals of

Answer 1

50 foot intervals to depth of at least 20 ft below eventuall foundations or to bedrock

Question 2

perhaps the most important subsurface variable of site analysis is…

Answer 2

the absence of water, moisture content of the soil, it sinternal and surface drainage, and the location of the water table

Question 3

what are the effects of a low water table?

Answer 3

• low water supply
• difficult for on site vegetation

Question 4

what are the effects of a high water table?

Answer 4

• difficult excavation
• flooded basements
• flodded utilities
• unstable foundations

Question 5

a high water table is indicated by what on site ibservations?

Answer 5

• levels in existing wells and digging
• presence of water loving plants, such as wilows, alders, and reeds

Question 6

The danger flags that call for a detailed investigation of ciritcal subsurface problems include:

Answer 6

• a high fluctuating water table
• the presence of peat or other organic soils
• soft plastic clay
• loose silt
• fine water-bearing sand
• rock close to the sruface
• new, unconcsolidated fill
• land previously used as a dump
• any evidance of slides, floods