In the User Manual swmm-users-manual-version-5.2.pdf
In section [STREETS], field 'a', wrong units, says 'in or mm', but having looked at the code, it should in fact say 'ft or m'
Page 377 of the manual.
The code does street->gutterDepression = x[5] / UCF(LENGTH); with no previous unit change. In street_readParams().
In section [INLET_USAGE], field 'aLocal', same thing.
Page 381 of the manual.
The code does inlet->localDepress = aLocal / UCF(LENGTH); with no previous unit change. In inlet_readUsageParams().