CulvertMaster CONNECT Edition V10 Update 3 (x86/x64) CulvertMaster CONNECT Edition V10 Update 3 (x86/x64) | 206 MB The Hydraulics and Hydrology development team is pleased to announce the availability of CulvertMaster CONNECT Edition V10 Update 3. The FEMA-approved Bentley OpenFlows CulvertMaster is hands down the best tool available for solving culvert hydraulics problems.