20' - Flooding becomes widespread across Manville. Flooding expands between Dukes Parkway and Brooks Blvd. The amount of flooding can vary from event to event and can be affected by the amount of water in the Millstone.
19' - South Bridge Street in Somerville is closed. The amount of flooding can vary from event to event and can be affected by the amount of water in the Millstone. Old York Road and Robert Street floods. Old York Road and Park Drive floods.
18' - East Dukes Parkway and several bridges in Manville are flooded. Roads throughout the area are closed due to high water. The amount of flooding can vary from event to event and can be affected by the amount of water in the Millstone.
17' - Street and roadway flooding increases across the Manville area. The Van Veghten Bridge and Main Street in Manville are flooded as well as 5th Street in Somerville. The amount of flooding can vary from event to event and can be affected by the amount of water in the Millstone.
16' - Lincoln Avenue in the Lost Valley section of Manville floods.
15' - Dukes Parkway begins to flood in Hillsborough.
13' - Southside Avenue in Somerville floods.
12' - Cautionary/Action stage is reached. Roads and trails flood within Dukes Park.
11' - At this level, inundation begins in Dukes Park in Manville.