From the fine folks at Trinity Infrastructure:
The western half of the Preston Road bridge will be demolished this weekend!
Preston Road will be reconstructed one half at a time. While one side is demolished and reconstructed, the other side will be open with reduced through lanes in each direction. Beginning, Wednesday, June 13th, Preston Road will be reduced down from 4 lanes in each direction with U-turns to 3 lanes in each direction with the U-turns closed.
During the demolition this weekend, the following closures will occur from 8:00 p.m. Friday, JUNE 15 to 5:00 a.m. Monday, JUNE 18:
• Various main lanes, exits and entrances to be closed.
• Preston Road closed crossing over LBJ Freeway.
• CLICK HERE to view the detour map for the Preston Road bridge.
• CLICK HERE to view the lane closure configurations associated with the demolition.
In other, more succinct terms: AVOID.