Prachim Ratthaya Expressway (The Si Rat - Outer Ring Road Expressway)


Prachim Ratthaya Expressway (The Si Rat - Outer Ring Road Expressway) under the Concession Agreement for Investment, Design, Construction, Operation, Service, and Maintenance of the Prachim Ratthaya Expressway Project is implemented on a BTO basis.  

The route starts from the Outer Ring Road (Kanjanapisek Road around Mahasawat Water Treatment Plant) heading eastbound along the right of way of the existing Southern railway, crossing the Chao Phraya River around the Rama VII Bridge, ending around Bang Sue Grand Station (Chatuchak), connecting with the Si Rat Expressway around the Bus Terminal (Mo Chit 2), running down to at-grade level around Kamphaeng Phet 2 Road, and connecting northward heading to Chaeng Watthana, covering a total distance of 16.7 kilometers.  The concession period is 30 years and ends on December 14, 2042. 

Prachim Ratthaya Expressway  Length
Revenue Revenue Sharing
Company : EXAT
Prachim Ratthaya Expressway 16.7 22 Aug 2016 Company 100 : 0

Prachim Ratthaya Expressway Control Center (CCB7) Tel. 0-2555-0255

Expressway Service

BEM established the expressway system control centers by having communications staff to coordinate with the rescue operation units as well as police officers on the expressway and at the ground level roads so as to service the motorists 24 hours a day.