Jefferson City Stormwater Master Plan

Location: Jefferson City, Mo.

Client: City of Jefferson, Mo.

Completion Date: Phase I/II: May 2003; Phase III: December 2004

Burns & McDonnell was engaged by the city of Jefferson, Mo., to conduct a comprehensive citywide stormwater master plan. Jefferson City is a central Missouri municipality with a population of approximately 30,000 and a municipal area of approximately 40 square miles.

The study area included an additional 30 square miles outside the city limits in unincorporated Cole County that are tributaries to the city's drainage areas and drainage systems. The total drainage area contains four main watersheds, and these watersheds were further divided into separate sub-areas down to 160 acres for evaluation.

The definition of the existing drainage network was defined by extensive field reconnaissance and surveys. The study incorporated an evaluation of both existing system capacity and future development system capacity. From the computer analyses, a capital improvements program (CIP) was developed that addresses identified system deficiencies and plans for the fully developed system, incorporating detention and conveyance elements to serve the projected land use. Included in the CIP are construction cost estimates and a prioritization of the improvements.

Other project facets include the use of ArcView geographic information systems (GIS) for project model development and final deliverables, related aerial watershed and drainage system contour mapping, and a financial feasibility analyses for several financing options to fund the capital improvements for Jefferson City. A comprehensive review and update of the city’s related stormwater ordinances, design manual, erosion and sediment control manuals and policies, and floodplain policies was included, as well as the development of a Phase II National Pollution Discharge Elemination System (NPDES) stormwater compliance program.

  • System inventory
  • Field surveying
  • Hydrologic and hydraulic modeling
  • Master plan/capital improvement plan development
  • Prioritization
  • Cost development
  • GIS integration
  • Asset management