Snapper Creek and the canals Canal Backyards and Ground Rats in Kendall
Snapper Creek runs through Kendall on its way to Biscayne Bay, and its canal reaches about 10 miles back toward the Everglades. It was dredged and tied into the flood control system in the 1940s. Homes that back onto canal banks and lakes get a second rodent: the Norway rat, which digs instead of climbs.
18inBurrow depth
Norway rat burrows can run about 18 inches deep, often under slabs, sheds and seawalls.
3inBurrow opening
Look for round holes about 3 inches wide with packed dirt paths leading away.
1/2inRat gap
A rat can fit through a gap about 1/2 inch wide. A mouse needs only 1/4 inch.
56inRain a year
Heavy summer rain floods burrows and pushes ground rats toward garages and slabs.
On canal lots we look at the bank, the base of the house, sheds, docks and any stacked wood or pavers. We close openings at ground level with concrete, sheet metal or 1/4 inch hardware cloth set into the soil, and we use locked bait stations outside only where they make sense.
Sources: Wikipedia, Snapper Creek and Kendall, Florida. UF/IFAS Extension ENY-224, Rat and Mouse Control (burrows, gap sizes, Norway rats along canals). Rainfall is the 1991 to 2020 normal for Kendall.