The 4Bridges Ride, a 26 mile charity bike ride hosted by the RI Turnpike & Bridge Authority is this Sunday.  The ride begins at 7am at the park-and-ride lot on the North Kingstown side of the Jamestown Bridge.  During the ride, cyclists will pedal across the Jamestown, Newport, Sakonnet and MT. Hope Bridges.  Early morning motorists in Jamestown, North Kingstown, Portsmouth and Newport should prepare for slight delays and traffic detours. Get more information on the ride by visting www.4bridgesride.com .