  We calculate the time evolution of the flux, apparent size, and image
centroid motion of gamma-ray burst (GRB) radio jets, and show that they can be
resolved by the VLBA at distances of hundreds of Mpc. We find that GRB 030329
which showed spectroscopic evidence for an associated Type Ic supernova (SN) at
a distance of $\approx$ 800 Mpc might just be resolvable by VLBA after several
months. The prospects are much better for jets that are oriented sideways in
similar SNe with no GRB counterpart; in particular, the motion of the flux
centroid in such jets can be detected by VLBA up to $z\sim 1$ even when the jet
cannot be resolved. If most GRBs are accompanied by a Type Ib/c SN, then there
should be a few SN/GRB jets per year within a distance $\lesssim$ 200 Mpc, and
most of them would be oriented sideways with no gamma-ray or X-ray precursor.
Detection of these jets can be used to calibrate the fraction of all core
collapse SNe that produce relativistic outflows and determine the local GRB
rate. Overall, the rate of Type Ib/c SNe that do not produce a GRB at all, but
rather make relativistic radio jets with an initial Lorentz factor of a few,
may be larger by up to 2 orders of magnitude than the rate of those that
produce GRBs.
