how deep does a gopher dig
1 For gophers and moles dig a trench 2-3 feet deep and install the wire at a ninety-degree bend to the outside (making an L shape), with an above ground portion of at least 6 inches. 2  A wire mesh fence at least 12 inches above the ground and extending 6-10 inches below the soil surface will exclude voles from the area. Create a vertical barrier. 2  For gophers and moles dig a trench 2-3 feet deep and install the wire at a ninety-degree bend to the outside (making an L shape), with an above ground portion of at least 6 inches.
Tunnels Pocket gopher tunnels are 1Â¾ to 3Â½ inches in diameter, depending on the size of the gopher digging the tunnel. Tunnels occur 4 to 12 inches below ground, whereas the nest and food storage chamber may be as deep as 6 feet.Tunnels tend to be deeper in drier soils.unnels. Pocket gopher tunnels are 1Â¾ to 3Â½ inches in diameter, depending on the size of the gopher digging the tunnel. Tunnels occur 4 to 12 inches below ground, whereas the nest and food storage chamber may be as deep as 6 feet. Tunnels tend to be deeper in drier soils.