(July 5, 2011) The main lanes of the Sam Rayburn Tollway (SRT) will be closed in both directions near the Dallas North Tollway (DNT) and the northbound Dallas Parkway frontage road will be closed at SH 121 Tuesday, Wednesday, and Thursday nights, July 5-7. The SRT and the frontage road will close at 9:00 p.m. each night and will reopen by 5:00 a.m. the following morning. The specific details of each closure are described below:
The northeast-bound Sam Rayburn Tollway will be closed between Legacy Drive and Parkwood Boulevard each night. All traffic on the northeast-bound SRT will be diverted onto the SH 121 frontage road at Legacy Drive and will have to pass through several traffic signals before re-entering the highway at Parkwood Boulevard. Detour signs will be posted.
The southwest-bound Sam Rayburn Tollway will be closed between Parkwood Boulevard and Legacy Drive each night. All traffic on the southwest-bound SRT will be diverted onto the SH 121 frontage road at Parkwood Boulevard and will have to pass through several traffic signals before re-entering the highway near Legacy Drive. Detour signs will be posted.
Northbound Dallas Parkway will be closed between Headquarters Drive in Plano and SH 121 each night. All traffic on northbound Dallas Parkway will be detoured onto eastbound Headquarters Drive and can use Parkwood Boulevard to continue their journey north. Detour signs will be posted.
These road closures are part of NTTA’s interchange construction project. Motorists are urged to use caution in the construction zone and to choose an alternate route in advance.