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About Ed Eckley
Expertise
I will be happy to answer any questions regarding foundation problems of any type. Questions pertaining to construction methods, Problematic soils, Settling & Movement, Frame torsion & racking, Preventative measures, Repair methods of all types.
Experience
Over 18 years in the industry. A.S.M.E. Certified,(American Society of Mechanical Engineering). Hydraulics Design Expert. 18 years of hands on soil manipulation. Over 500 homes repaired, and over 20 commercial buildings repaired. Extensive soil knowledge. Familiar with most types of repair methods and the expected results of each.
Publications
Ezine.com Article Title: Foundation Problems Do's & Don'ts
custombuildingsupport.com: Foundation Repair Methods
Education/Credentials
High School Graduate 1976
Trade School Graduate 1976
College Graduate 1978
Awards and Honors
Certificates of achievment: Excel Industries
Letters of appreciation: City of Golden
Awards & Plaques: Jacobsen Turf Division
Past/Present Clients
Available on request
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You are here: Experts > Home/Garden > Home Improvement/Repair > Foundation Stabilization and Repair > Foundation in rock
Expert: Ed Eckley - 10/31/2009
Question
I am having a house built. It turns out that one foot below the surface is rock. They cut a hole in the rock for the foundation. Their regular pick couldn’t cut through it so they brought in a monster pick to do the job. They poured the foundation inside this rock “bowl” so the foundation will not be just “on” rock but “in” rock. My concern is that water draining on the outside of the foundation will be stuck inside the rock bowl and there will always be water outside my foundation. The builder says that the stone is somewhat porous and the water will eventually drain out. The ground will be graded to drain water away from the house but some water still drains into the ground. So now I feel like my house will sit inside of a swimming pool. What are your thoughts?
Thanks,
Brad
Answer
Hello Brad
My first thoughts are: Why isn't the foundation simply built on top of the verified rock?
Carving down through rock is a great extreme, unless it is required for cold climate frost depth reasons, or, there is a need for a crawl space or basement.
Whether or not there may be a future problem with trapped ground water, depends entirely on the finished surface grade, and the below grade porosity discovered at the time of excavation.
If ground water has been discovered at the time of excavation, then there may be a need for a planned perimeter drain to evacuate any accumulative water.
I'm sorry that I cannot offer any recommendations or advice on this situation without knowing all of the test results and environmental comparatives.
You may want to consult with a geotechnical engineer in the nearby region.
I wish you the best!
Respectfully Ed Eckley
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