The Southeast Metro Stormwater Authority has completed a stream-stabilization improvement project for a segment of Little Dry Creek. It entailed stabilizing channel banks being undercut by erosional forces of the stream. Photo courtesy of SEMSWA
Submitted by SEMSWA
The Southeast Metro Stormwater Authority has completed a stream-stabilization improvement project for a segment of Little Dry Creek, located adjacent to the Southgate Water and Sanitation District facilities at Orchard Avenue and Long Road in Centennial.
The project was identified as a priority effort in the Little Dry Creek Master Plan. It entailed stabilizing channel banks being undercut by erosional forces of the stream. Prior to initiation of this project, the stream segment, called “Reach 6,” exhibited steep eroding cliffs below the Southgate Facility.
“The creek had eroded large caverns in the bottom of the north bank causing concern about the stability of the bank adjacent to one of the city’s water and sewer providers, Southgate Water and Sanitation District,” said Ron Weidmann, Centennial City Council member and SEMSWA Board member. “The impressive boulder wall bank protection is a welcome improvement to the creek,”
AMEC Earth and Environmental Company was selected to design improvements to the creek, including a new channel alignment to allow shallower sloped banks and robust bank protection at two critical locations along the reach. The contractor was Naranjo Civil Constructors.
All of these improvements combine to maximize healthy channel function along Little Dry Creek, a tributary to the South Platte River. Construction started in November 2012 and was completed in April at a cost of $409,000.
For more information, visit www.semswa.org.
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