OVERVIEW: Ingram Gulch, a tributary to Fourmile Creek, was severely impact by debris flows following the 2010 Fourmile Canyon Fire and again by floods in 2013, resulting in significant channel degradation and loss to private and public property. Prior to the fires and floods, the Ingram Gulch watershed was impacted by hard rock mining, leaving dozens of overburden piles in the upper watershed and in the main channel. AloTerra worked with a diverse team of river and mine land engineers and biologists on this challenging and rewarding project. The resulting design provides for floodplain relief and reduces the effects of future floods/debris flows on property, while enhancing wetland and riparian habitat and improving water quality.
ALOTERRA provided watershed assessments, stream and floodplain grading plans, construction cost estimating, USACE 404 permitting, riparian and wetland restoration design (concept, 30%, and construction-ready) and wetland delineation; private landowner relations; project management including oversight for channel construction, revegetation, bank protection, soil amendments, bioengineering treatments, upland revegetation, and erosion control.
CLIENT: Fourmile Watershed Coalition/Norwest Corporation
PROJECT PARTNERS: Frontier Environmental