I found a snake, please help me identify (pictures)

[Juggernuts]

I found a snake at my house sitting in the flowerbed. I think it may be a water snake, being we have one of those huge city ditches next to the house. His underbelly is checkered with red and a dull yellow, and the top of him is a brown color with some bands. He has no fangs that I can tell of. I'm about to post some pictures with it so maybe that will help. Also he's about 2 1/2 feet long.

Thanks for the help.