I just recently completed a new dam. Shut the dozer off when it started raining at 10AM and got 6" that night which nearly filled the 2 acre pond. No cover or seed down. We re-smoothed the dam and I put down wheat/fescue/millet and straw. Another couple heavy rains including 4" put water out the emergency spillway which bunched up the straw and cut some divets. I replanted it and had the dozer track the straw into the soil as best he could. If it happens again I will look into using the straw mat rolls. Point is I would use the best you have (straw mats) on the emergency spillway slope.

My pond is is west central MO and have had over 12" rain since the dam was finished. I'll try to send some your way.

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