Sewer Modeling

Spring 2007 Summary
Staff collected data for the entire wastewater system, including over 4000 manholes and 200 miles of pipe. This information was put into a sophisticated sewer modeling program which allows staff to be able to simulate flood events at the local level. Using GIS provides Engineering and Utilities officials a way to visualize and identify potential deficiencies in the wastewater network.

GIS data and resources provide an extra benefit to this analysis. For example, by linking parcels to tax assessment data, City officials can more accurately identify all structures with footing drains based on the year that the structure was built and if it has a basement.
GIS map of the City's sewer system.
Using this information increases the accuracy and level of sophistication to the modeling process. The image provided illustrates how the sewer modeling process can identify deficient areas in the system such as pipes that are at or near full capacity (shown as red lines).

Positive Results
This project allows City staff to conduct sewer modeling efforts in-house and greatly reduces the potential cost associated with hiring an outside consultant. This high-level approach to modeling is unsurpassed by any other municipality of our size.