To clone the latest uintah version (i.e. head revision) use:
git svn clone -rHEAD https://gforge.sci.utah.edu/svn/uintah/trunk uintah
To clone a range of uintah revisions, use:
git svn clone -r r1:r2 https://gforge.sci.utah.edu/svn/uintah/trunk uintah
where r1 and r2 are the svn commit numbers that you’d like to pull.