We present 13 broad absorption line (BAL) quasars, including 12 new objects
, identified in the Sloan Digital Sky Survey (SDSS) and matched within 2 "
to sources in the FIRST radio survey catalog. The surface density of this s
ample of radio-detected BAL quasars is 4.5 +/- 1.2 per 100 deg(2), i.e., ap
proximately 4 times as high as previously found by the shallower FIRST Brig
ht Quasar Survey (FBQS). A majority of these radio-detected BAL quasars are
moderately radio-loud objects. The fraction of BAL quasars in the entire r
adio quasar sample, 4.8% +/- 1.3%, is comparable to the fraction of BAL qua
sars among the SDSS optical quasar sample (ignoring selection effects). We
estimate that the true fraction of BAL quasars (mostly "HiBALs") in the rad
io sample is 9.2% +/- 2.6%, once selection effects are accounted for. We ca
ution that the absorption troughs of four of the 13 radio-detected quasars
considered do not strictly satisfy the standard BALnicity criteria. One or
possibly two of the new radio-detected BAL quasars are of the rare "FeLoBAL
" type. BAL quasars are generally redder than the median SDSS quasar at the
same redshift.