Van Zandt County construction updates released Posted in: News Canton Maintenance plans to continue milling operations on FM 314 to begin overlay work south of I-20. Expect lane closures with flaggers managing traffic. I-20 MBGF Improvements (Van Zandt, Smith, and Greg Counties) Limits: SH 19 in Canton E to MLK Blvd. in Longview Contractor: Sefbo Pipeline Bridge, Inc. Cost: $3.5 million Anticipated Completion Date:PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!