I'll probably end up paying to improve a gravel road which passes over parts of a bog in Northern Wisconsin. The road has been there for over 60 years and two spots sink into water table. Roadway is 15 feet wide. Low spots have been filled with stone several times. The stone sinks in about 5...
A structurally suspended foundation:
footprint 30'x60', single story frame home,
18"dia x 25' deep concrete piers
Questions:
1) spacing for piers?
2) footer beam dimensions to span piers?
3) concrete formula for beams?
4) any other comments or questions?
PWS
