Pacific International Engineering team members perform a wide range of complex hydraulic and hydrologic engineering analyses. Existing models can be adapted to specific situations in the process of developing new models. Modeling programs routinely used by our engineers and scientists include: HEC-1, HEC-5, HEC-6, HEC-RAS, Geo-RAS, UNET, RiverCAD, FFA, WMS, FESWMS, RMA2, SED2D, SMS, DAMBRK, HSPF, HY8, SWMM, SBUH, TR20, and HYDRA. Modeling efforts include one- and two-dimensional steady- and unsteady-state modeling of complex river systems. PI Engineering's knowledgeable staff utilizes the most advanced technology and graphical modeling environments to facilitate importing and exporting of CAD and GIS data.