Outer Circular Highway (OCH) to the City of Colombo is one of the expressways proposed. On completion, this highway will provide access to existing "A" class roads and proposed expressways at the interchanges, and as such will serve as the basis for the entire network of Highways and Expressways in the country.
Outer Circular Highway details are as given below.
Length: 28km
Design speed :80 Km/h
Lanes : Initially 4, Ultimate stage 6
Underpasses and overpasses have been proposed for the intersecting roads other than "A" Class roads. Provision of width of these underpasses has been made to satisfy Road Development Authority requirements for the class of road concerned. Frontage road of 6.0m wide on either side of the expressway will be provided wherever necessary to provide access to residents
Interchanges to the Outer Circular Highway have been proposed for "A" class roads and other expressways at the following locations.
Kerawalapitiya with Colombo - Katunayake Expressway
Mattumagala with Peliyagoda - Puttalam Road
Kadawatha (East of Kadawatha Town) with Colombo Kandy (A1) Road & proposed Colombo Kandy Expressway
West of Biyagama Town with Kelaniya - Mudungoda Road
West of Kaduwela Town with Colombo - Hanwella Low Level Road
Makumbura (East of Kottawa Town) with Colombo - Ratnapura - Wellawaya - Batticaloa (A4) Road and proposed Southern Expressway (E01)
More Aerial pictures will follow soon.
MINIACE