g'day jack,

might be best to at least get someone around who has the machinery
(bobcat whatever) that could rip up the bitumen, and get a quote fro
removal then you can decide if the job might be too expensive or not.
ultimately it would be better to get rid of it.

but if it is too expensive a job to do then raised beds will work just
need to be sure that the ebds can drain a little, nothing flash might
mean make sure the bed edges don't form a good seal to the tar.

if you go this way the beds would be better at least 20"s deep, a bare
minimum of 12"s, you could make surrounds out of corrugated roofing
ther would be lots of other alternatives. suppose with the tar in
place you wouldn't be needing to worry about weed barriers or path
material.

see our pic's for ideas, on our site.



On Mon, 5 Jan 2009 03:33:47 -0800 (PST), jzfredricks
wrote:
snipped
With peace and brightest of blessings,

len & bev

--
"Be Content With What You Have And
May You Find Serenity and Tranquillity In
A World That You May Not Understand."

http://www.lensgarden.com.au/