TROY -- 8/16/2017 -- The Illinois Department of Transportation (IDOT) has announced that a full closure on westbound Interstate 270 from the Interstate 55/70/270 interchange near Troy to Illinois 3 is scheduled to begin on Friday, August 18, weather permitting. Starting at 9 p.m. Friday, westbound Interstate 270 will be closed from the Interstate 55/70/270 interchange to Illinois 3. A posted detour will direct traffic to take westbound Interstate 55/70 to northbound Interstate 255 to westbound New Poag Road to southbound IL 3 to access westbound Interstate 270. Westbound traffic will not be able to travel on Interstate 270, west of the Interstate 55/70/270 interchange. The closure is necessary for pavement repairs on Interstate 270. The closure is expected to reopen by 5 a.m. on Monday, August 21. The contractor on the project is Microsurfacing Contractors, LLC, of Bridgeton, Missouri. Motorists are advised to seek alternate routes during construction weekends and anticipate some longer travel times. By utilizing a full expressway closure and keeping construction restricted to the weekend when traffic volumes are down, IDOT aims to reduce the length of time the work zone is needed during heavier traveled weekday periods.