Prickly Pear Creek Realignment Project
East Helena, MT · Environmental & Remediation · 2017
Project details
Near Helena, Montana, Pioneer led a 5-year remediation of Prickly Pear Creek contaminated by a century of smelter activities depositing arsenic, lead, and other contaminants into soil and groundwater. The project relocated approximately 1.25 miles of creek and its floodplain, removed a derelict dam and impacted reservoir sediments, and permanently lowered groundwater beneath the site. Construction was completed in July 2017. Pioneer received FIDIC 2019 International Merit Award and ACEC 2019 Grand National and Montana Engineering Excellence Awards for this project.
