City of Huntsville: Sanitary Sewer Improvements

Schaumburg & Polk, Inc. was contracted by the City of Huntsville to provide preliminary and final engineering design, bidding and construction phase services for the construction of over 3.5 miles of 18-inch and 8-inch sanitary sewer trunk lines. The sewers provide sanitary service to an area previously without sanitary service, and also allow for the decommission of several existing lift stations. Preliminary engineering included conducting route studies to determine the most feasible alignments based on functionality, cost, property acquisition and environmental constraints. Extensive coordination with the U.S. Department of Agriculture Forest Service was a large part of the preliminary phase, as over 1,000 linear feet of sewer was proposed to traverse Sam Houston National Forest. Additionally, SPI coordinated with Entergy to allow construction within an existing transmission line easement in order to reduce impacts to private property and National Forest property.  This project also included a gravity aerial crossing over a creek, shallow crossings under other creeks, trenching up to 20 feet in depth, and a bore under an existing pond. Within the developed area, street pavement replacement was also required.