Motorist in Summerville will experience some delays next month while the Chattooga & Chickamauga Railroad repairs the railroad crossing on Highway 27, located near the intersection of Farrar Drive.  The crossing has been a source of consternation for drivers for some time.  The repair is welcomed news for local commuters, but while the repairs are being made, the intersection will be completely closed down, according to railroad officials.  All vehicles will be rerouted which will cause delays for motorists.  The work is scheduled to begin one week from tomorrow on September 8th and continue until Tuesday, September 12th.  The work will be completed before the arrival of the first steam passenger train on September 16th.