A structural engineer will be in Bridgewater in the next few weeks to look at the historic Grange property.  Town officials have proposed demolishing the building and constructing a new one.  But it's  in a historic district and on the National Register of Historic Places.  The state Attorney General's Office filed an injunction last month against demolition of the 1850s-era building so an assessment could be done by the Historic Preservation Office.   The structure is currently surrounded by a chain-link fence to keep people out, because its condition is a liability.  Bridgewater officials have argued that renovating the building would only leave a small percentage of the original building because of the scale of work needed to make it into a useable community space.