SH60 River Restoration Project
In August 2017, Naranjo Civil began work on the SH60 River Restoration Project. Partnering with the Colorado Water Conservation Board (CWCB), the Emergency Watershed Protection Program (EWP), and the Middle South Platte Alliance (MSPRA), efforts have begun to repair damage wrought by extensive flooding in 2013.
During the 2013 floods across Colorado’s front range, the SH60 bridge over the South Platte River south-east of Milliken, Colorado, retained sediment and debris which exacerbated public health and safety concerns in the area in addition to increasing bank erosion and problematic floodplain impacts. This restoration project seeks to protect property and infrastructure in the vicinity of the SH 60 bridge on the Middle South Platte River.
The primary objective of the Naranjo Civil work at the SH60 Restoration, is to protect life and property for the Milliken community and those who live downstream of the River. This is being accomplished by increasing channel stability upstream of the bridge through a combination of river training structures and bioengineering bank stabilization helping to minimize bank erosion and sediment transport, so that under flood conditions, sediment will be mobilized through the bridge. The project will also enhance the ecological conditions of the river. Improvements include bendaway weirs; woody toe protection through the use of rootwads to encourage habitat; and resilient and stable channel banks capable of minimizing erosion under a wide range of flow conditions.
SH60 PROJECT BEFORE/AFTER
The SH60 River Restoration Project is expected to be completed November 9, 2017.