Public Works
Flood Control - Local Drainage Master Plan Updated November 26, 2012Volume 1
Contains Exhibits from Volume 1. Including watershed area, land use, FEMA flood areas, soil areas,
utilities, and a facility summary.
WaterShed
Land Use
FEMA
Soil - ABCD
Soil
Utilities
Facility Summary
Volume 2
Contains the Local Drainage Master Plan Project report and figures, generic street capacity charts,
street capacity check sheet, Flowmaster facility summary, facility summary, utility conflict matrix,
cost tool summary and full size overall drainage condition exhibits.
Local Drainage Master Plan Project
Existing Drainage Conditions - Study Area Map
Ultimate Drainage Conditions - Study Area Map
11 X 17 Existing and Ultimate Drainage Conditions Maps
Volume 3
Contains figures and exhibits, hydrologic calculations, and hydraulic calculations. The hydrologic
calculations include files with the 10-yr Rainfall Data, Curve Number Matrix, and Time Lag (Standard
Form 4 for areas < 1 square mile and USBR Equation for areas > 1 square mile). Also included are
the HEC-1 output files that are pertinent to the Master Plan. The hydraulic calculations include files for
Flowmaster (for facility sizing based on normal depth and street flow cross sections), facility summary,
flow splits, and street flow capacities and criteria.
For additional information, contact Albert Jankowiak at 702.267.3024 or by email:
Albert.Jankowiak@cityofhenderson.com