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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 > digging for 10'x20' addition - hit ledge
Expert: Ed Eckley - 11/4/2009
Question
Our home is 20 years old. A local foundation company starting digging for our foundation to support a 10x20 kitchen addition and hit ledge. The home is on a full foundation and the addition was anticipated to be on a full foundation. We do NOT want to blast. What options do we have? Is there a way to adjust the foundation? We are in the northeast, so we really need to take into consideration cold, frost, moister, etc. The ledge is a shale ledge, exposed area now at 3'x4', dont know how deep. The area is tight (more ledge and the house) 10' is all we have to work with. Help!
Answer
Hello Tony
This is a very difficult question to answer without investigating you local County requirements for minimum frost depths regarding spread footing type foundation plans.
You may need to consult with a nearby, licensed geotech, (goetechnical engineer), and follow their recommendations about the shale ledge.
My guess would be that you might be allowed to install the footing on top of the ledge if the load calculations are less than 1000lbs psi.
This guess should not be used as a guideline or recommendation!
You must meet or exceed your County's Requirements to satisfy building codes.
Part of the plan will take into consideration, the original 20 year old foundation, and how it has held up in the environment.
I wish you the best!
Respectfully Ed Eckley
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