CJD,
Welcome to Pond Boss....tons of info and lots of helpful folks here....Can you send some pics of your existing pond with regards to watershed, pre-existing dam, and which direction you'd like to expand to? I'm sure one of the dirt pro's can lead you in the right direction....I expanded a small circular pond to about 3 times the original size (to kidney shaped) a year ago. The pre-existing pond had been there for 12-13 years prior and was 7' deep at the time. I went ahead and had the guys cut the levee and pump it down. They ended up mucking up about 5' of silt, mud, decomposing, and deteriorating debris from the bottom of the pond until we got to 12' (the original clay bottom). So, my place was basically drained and mucked out before it was expanded. I'm glad I had it done afterwards...I've never smelled anything more awful than the decomposing matter that was lining the bottom of that lil BOW. Good luck and keep us posted.
