Old Town Results

• keyboard_arrow_downBase Map
  Contours

  Outfalls

• keyboard_arrow_downHydrology

  This study provides an updated hydrologic evaluation of the Old Town Basin and a capacity analysis for the major outfalls that provide drainage. The 2-, 10-, and 100-year storm frequencies were used in conjunction with existing land use data to develop storm discharge magnitudes throughout the basin.

  EPA-SWMM version 5.1 was used to construct the primary hydrologic model of the watershed. Many street intersections within the basin are flat and create split flow situations. For this reason FLO-2D was also utilized in the development and calibration of the hydrologic model. Offsite hydrographs from the Colorado State University Campus, and spill flows from adjacent canals were obtained from previous studies and incorporated into the model. The resulting model provides hydrographs and peak flow data for the entire Old Town basin.

  Watersheds

  Basins

  Labels

  Basin Connections

  Conduits

  Junctions

  Ponds

• keyboard_arrow_downPotential Inundation Areas

  Flow Depth

  Velocity

• keyboard_arrow_downStudy Comparison

  Click on these layers to display flow comparisons between the 2003 Anderson Study and 2017 ICON Study in selected locations.

  Conduits

  Junctions

• keyboard_arrow_downLegend

  • Hydrology

  • Basins
  • Basin Connections
  • Conduits
  • Junctions
  • Ponds
  • Outfalls

  • Comparison

  • Conduits
  • Junctions

  • Flow Depth

  • .25' - .5'
  • .5' - 1'
  • 1' - 1.5'
  • 1.5' - 2'
  • 2' - 3'
  • 3' - 4'
  • 4'+'

  • Velocity (cfs)

  • .25 - .5
  • .5 - 1
  • 1 - 1.5
  • 1.5 - 2
  • 2 - 3
  • 3 - 4
  • 4+