Goose Creek Watershed Management Plan Version - Charlotte ...

Goose Creek Watershed Management Plan Version 1...………………...October 31, 2009
For the purposes of mitigation credit, the US Army Corps of Engineers defines
restoration and enhancement as follows (USACE, 2003):
Restoration – the process of converting an unstable altered or degraded stream corridor,
including adjacent buffers and flood prone areas, to its natural stable condition. Restoration
is based on reference conditions and includes restoring the appropriate channel dimension,
pattern and profile. For impacts to fair or poor quality waters, the mitigation credit ratio is
generally 1.0 (i.e. for every 100 feet of stream impact, 100 feet of stream restoration would
be required for mitigation).
Enhancement Level I – mitigation category that includes improvements to the stream
channel and riparian zone that restore dimension and profile, but do not address pattern.
required for every 100 feet of impact).
Enhancement Level II – mitigation category for measures that improve channel stability,
water quality and habitat, but fall short of restoring both dimension and profile.
Examples include bank stabilization, vegetating riparian buffers and using in-stream
structures to enhance stability and habitat.
Table 19: Highest Priority Goose Creek Stream Reaches
Reach Rank
DSTOUS296 1
DSTOUS329 2
DSTOUS357 3
DSTOUS299 4
DSTOUS142 5
DSTOUS184 6
Reach DSTOUS296
Reach DSTOUS296 is located in Basin 14 upstream of an impoundment (see Figure 33).
There is rip-rap on the upstream portion of the reach and the trees have good root depth.
Gravel riffles, and a beaver dam are present. 300 ft of stream has been denuded from
beaver dam breach. Woody debris and root mats form habitat. Some mid-channel bars
exist. Bedrock nick-points present. Recommendation is Enhancement Level 1.
Recommendation: Enhancement Level 1
Estimated Cost: $844,735
System: Minor
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