Sound
hydrologic and hydraulic analyses are critical to successful water resources
projects. Many methodologies and techniques are used to define the rate and
volume of runoff and determine water surface elevations. It is important to
select the most appropriate technique and apply it properly to each problem.
Hey.and.Associates,.Inc.
has used the following accepted, state-of-the-art models: Corps of Engineers
HEC-1, HEC-2, and HEC-RAS models, the Illinois Urban Drainage Area Simulator
(ILLUDAS), and the EPA’s Stormwater Management Model (SWMM) and Hydrological
Simulation Program-Fortran (HSPF). We also have used the TR-55 and TR-20
programs supported by the Natural Resources Conservation Service.
Our staff is experienced in using
Geographical Information Systems (GIS) techniques and programs to generate
input data and to display output data linked with hydrologic and hydraulic
models. We have experience with the Wisconsin Department of Natural Resources’
Source Load and Management Model (SLAMM), P8, and Detention Pond Model
(DETPOND) to design and evaluate the effectiveness of wet detention basins and
other water quality treatment practices. We also have used the POND PACK
software for hydrologic analyses and detention basin design.