Evaluation and analysis of the T Street Gulch Drainage Basin, including alternatives development, modeling, and engineering evaluation that, when implemented, would decrease erosion and sedimentation impacts within the T Street Gulch. Cosmopolitan Engineering Group was also responsible for the environmental coordination of stream assessments, habitat evaluations, and permit acquisition.

Erosion control and stormwater design elements consisted of channel armor, stormwater conveyance pipe and sedimentation facilities. Channel armoring and rockery construction was conducted in two phases on over 11,000 linear feet of channel and ravine in an urban environment. Stormwater conveyance consisted of more than 2,100 linear feet 48-inch and 72-inch concrete and HDPE piping.