Yard flood damage in Colorado #153209 - Ask Extension

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Yard flood damage in Colorado #153209

Asked September 18, 2013, 5:14 AM EDT

My home on Mariposa in Boulder fortunately was not flooded, but the yard has a 4" to 6" layer of red clay/sand. I am concerned this is going to set up like rock or concrete. I would appreciate suggestions on how to deal with this excess material. Is the city going to have an area where people can take this soil? 

Boulder County Colorado

Expert Response

Do you know whether there is a possibility of sewage or industrial or automotive contaminates in the soils deposited on your yard? That may influence the decisions on handling the situation. As far as the city goes, there is little support from outside the community (FEMA) for cleaning up private property. Other support may be found.

If the soils are relatively free of hazardous materials and the lay of the land and landscape plants that remain can handle the added soil depth, you may want to smooth or shape the soil surface to restore a nice appearance. Adding some organic material to the soil will help. Some blending of the new soil with the old will help too. You will want to get something growing in the soil as soon as possible. Live roots are a good way to prevent the concrete effect. Make sure that the new shape of the land surface still drains water away from the home.

Your local Colorado State Extension office may have some local information: 
Boulder County Extension
9595 Nelson Road, Box B
Longmont, CO 80501
Phone: 303-678-6238

Colorado Flood resources and answers:
http://www.ext.colostate.edu/pubs/drought/flood.html

Some of our national resources: 
http://www.extension.org/pages/33184/recover-from-a-flood#.UjsYH9LEMyM

Flooded lanscape soils Q&A:
http://www.extension.org/pages/24197/recovering-a-flooded-landscape#.UjsYY9LEMyM
Frank Wideman Replied September 19, 2013, 11:31 AM EDT

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