TPW Roads

Alexander Valley Road Box Headwall

Project # M08402

Status: Complete


Alexander Valley Road (County Road Number 9902), North of Healdsburg.


Construction of a concrete box culvert, corrugated metal pipe culvert extensions, and a pipe headwall.


  • Bid Date: April 28, 2010
  • Work Completed: Summer, 2010
  • Official Notice of Completion issued August 20, 2010

Contact Information

Business Hours
Monday – Friday
8:00 AM – 5:00 PM
Contact us by Phone
Office Location
La Plaza B
2300 County Center Drive
Suite B 100
Santa Rosa, CA 95403
38.462023, -122.725381

Standard Plans

Construction Standards for County Roads


Standard plans for construction of roads and related structures.