20140333 Ver 1_PCN - Page 5 (Updated Stream Impacts)_20151102

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C. Proposed Impacts Inventory
1. Impacts Summary
1a. Which sections were completed below for your project (check all that apply):
Wetlands Streams - tributaries Buffers
Open Waters Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number –
Permanent (P) or
Temporary (T)
2b.

Type of impact
2c.

Type of wetland
(if known)
2d.

Forested

2e.
Type of jurisdiction
(Corps - 404, 10
DWQ – non-404, other)
2f.

Area of impact
(acres)
W1 – Wetland N
P T
Stream
enhancement –
minor bank
grading
Seep Yes
No
Corps
DWQ 0.002
W2 – Wetland P
P T
Fill – Installation
of rock outlet Headwater forest Yes
No
Corps
DWQ 0.0005
2g. Total wetland impacts 0.0025
2h. Comments: Impacts to wetlands areas were avoided to the extent possible during the design phase. Minor bank grading
to the left bank of UT1 at Station 107+47 would result in temporary impacts to the portion of Wetland N that directly abuts the
channel. Less than 6 inches of grading is proposed in that impact area. A rock outlet structure is proposed where Wetland P
drains into UT1 near Station 101+57. The rock outlet structure would stabilize the grade where Wetland P would reconnect to
the new stream alignment and result in a permanent impact of 0.0005 acres.
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number -
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial
(PER) or
intermittent
(INT)?
3e.
Type of jurisdiction
(Corps - 404, 10
DWQ – non-404,
other)
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P T Restoration UT1 – Reach 1 PER
INT
Corps
DWQ 4-6 215
S2 P T Enhancement I/II UT1 – Reach 2 PER
INT
Corps
DWQ 6-10 435
S3 P T Restoration UT1 – Reach 3 PER
INT
Corps
DWQ 6-10 331
S4 P T Enhancement I/II UT1 – Reach 4 PER
INT
Corps
DWQ 6-10 1,687
S5 P T Enhancement I UT2 - Reach 2 PER
INT
Corps
DWQ 10-15 298
S7 P T Restoration UT2 – Reach 3 PER
INT
Corps
DWQ 10-15 396
S8 P T Restoration UT2 – Reach 4 PER
INT
Corps
DWQ 10-15 242
S9 P T Restoration UT2A PER
INT
Corps
DWQ 10-15 468
3h. Total stream and tributary impacts 4,072
3i. Comments: Impacts are temporary enhancement and restoration activities and will result in a net gain of 313 linear feet of
perennial and/or intermittent stream channel. UT1 Reaches 2 & 4 involve Enhancement I (EI) and II (EII) techniques. EI includes
minor bank stabilization and habitat improvement through instream structures. EII involves fencing out cattle and buffer planting.