City of Thornton Standards and Specifications
2012 Standards and Specifications (Complete PDF) [PDF/21.5MB]
Standards and Specifications Amendment Table
Section 100 – Introduction [PDF/513KB]
Section 200 – Water System Standards [PDF/2.5MB]
Section 300 – Sanitary Sewer System Standards [PDF/766KB]
Section 400 – Storm Drainage Design, Grading, and Water Quality Technical Criteria [PDF/655KB]
Section 500 – Street And Parking Facilities Construction [PDF/7.6MB]
Section 600 – Concrete Work [PDF/255KB]
Section 700 – Traffic Technical Specifications [PDF/1.5MB]
Section 800 – Landscape Improvements [PDF/8MB]
Additional Design Guides
City of Thornton Transportation and Mobility Master Plan [PDF/57.6MB]
Manual on Uniform Traffic Control Devices (MUTCD)
Americans with Disabilities Act (ADA)
National Pollutant Discharge Elimination System (NPDES) Information