Chipmunk live trap: wheelbarrow full of water, ker plunk, 5 minutes, dump, reset. Like the shampoo bottle says: wash, rinse, repeat.
Bigger live trap w/ woodchucks or raccoon: Plastic cheapo tarp, place trap in middle by using dirt rake on handle, wrap in tarp, fold one end under, light gopher gasser bomb, place well into open end, fold end under, 15 minutes later unwrap, dump into garbage.
This worked well for me at my former house in city. One summer I "managed" 37 chipmunks, 4 raccoon, 1 possum, 3 red squirrel this way. Never noticed the thinning next year. Amazing how many critters can be around in a 0.26 acre lot.