I-35 at Stassney Lane and William Cannon Drive[/caption] As part of its ongoing Mobility35 initiative, the Texas Department of Transportation will reconstruct I-35 bridges at Stassney Lane and William Cannon Drive and the frontage road bridge over Williamson Creek. Workers are filling in the grassy median with asphalt and moving utilities, with lane closures Sun.-Fri. on southbound I-35 from Ben White Boulevard to Slaughter Lane from 9 p.m.-5 a.m. U-turns will also be added at Stassney and William Cannon, and the main I-35 lanes will be widened, according to TxDOT. Timeline: summer 2016-winter 2020 Cost: $79 million Funding sources: Proposition 1 funds