  We present high spatial resolution observations of ground-state OH masers
achieved with the Australia Telescope Compact Array (ATCA). These observations
targeted 253 pointing centres containing OH maser candidates at all four
ground-state OH transitions identified in the Southern Parkes Large-Area Survey
in Hydroxyl (SPLASH) across 96 square degrees of the Southern Galactic plane
(332\degree$<l<$334\degree and $-$2\degree$<b<+$2\degree,
344\degree$<l<$355\degree and $-$2\degree$<b<+$2\degree,
358\degree$<l<$4\degree and $+$2\degree$<b<+$6\degree, 5\degree$<l<$10\degree
and $-$2\degree$<b<+$2\degree). We detect maser emission towards 236 fields and
suggest that 7 out of 17 non-detections are due to the slightly lower
sensitivity of the ATCA observations, combined with some temporal variability.
The superior resolution provided by the ATCA data has allowed us to identify
362 OH maser sites in the 236 target fields. Almost half (160 of 362) of these
masers have been detected for the first time. Comparison between these 362
maser sites with information presented in the literature allowed us to
categorize 238 sites as evolved star sites (66\%), 63 as star formation (17\%),
eight as supernova remnants and 53 unknown maser sites (15\%). We present
analysis of the OH masers across the full SPLASH survey range (176 square
degrees) and find that the detection rate of 1.7 GHz radio continuum sources
(18\%) is lower than that previously found at 8.2 and 9.2 GHz (38\%). We also
find that the velocity separations of evolved star sites with symmetric 1612
MHz maser profiles are generally smaller than those with asymmetric profiles.
