20200349 Ver 2_01_BlueRidgeRoad_PCN_ImpactTables_20200423

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. 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.
2b.
2c.
2d.
2e.
2f.
Wetland impact
Type of jurisdiction
number—
Type of impact
Type of wetland
Forested
(Corps - 404, 10
Area of impact
Permanent (P)
(if known)
DWQ — non-404, other)
(acres)
or Temporary T
W 1 ❑ P ❑ T
❑ Yes
❑ Corps
❑ No
❑ DWQ
2g. Total wetland impacts
2h. Comments: No wetlands will be impacted as a result of the proposed project.
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.
3b.
3c.
3d.
3e.
3f.
3g.
Stream impact
Type of impact
Stream name
Perennial
Type of jurisdiction
Average
Impact
number -
(PER) or
(Corps - 404, 10
stream
length
Permanent (P)
intermittent
DWQ — non-404,
width
(linear
or Temporary (T)
(INT)?
other)
(feet)
feet)
Site 1
® P [_1 T
Bank Stabilization
House Creek
® PER
❑ INT
® Corps
® DWQ
1
149
Site 2
® P ❑ T
Bank Stabilization
House Creek
® PER
❑ INT
® Corps
® DWQ
15
112
Site 2
® PER
® Corps
® P ❑ T
Culvert Replacement
House Creek
❑ INT
® DWQ
15
6
Site 2
Temporary Construction
House Creek
® PER
® Corps
15
37
[_1P ® T
Access
El INT
® DWQ
Site 3
® P ❑ T
Culvert Replacement
House Creek
® PER
❑ INT
® Corps
® DWQ
15
15
Site 3
® PER
® Corps
® P ❑ T
Bank Stabilization
House Creek
❑ INT
® DWQ
15
41
Site 3
Temporary Construction
House Creek
® PER
® Corps
15
69
[_1P ® T
Access
El INT
® DWQ
3h. Total stream and tributary impacts
429
3i. Comments: Unavoidable impacts to House Creek will result from the proposed project. Permanent impacts to House Creek
will result from the replacement of an existing culvert and bank stabilization to support the proposed road widening. Temporary
impacts to House Creek will occur as a result of construction access as part of the culvert replacement and streambank
stabilization. Temporary impacts will be restored to pre -construction conditions upon completion of the proposed project.
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6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a.
® Neuse El Tar -Pamlico El Other:
Project is in which protected basin?
❑ Catawba ❑ Randleman
6b.
6c.
6d.
6e.
6f.
6g.
Buffer impact
number—
Reason for
Buffer
Zone 1 impact
Zone 2 impact
Permanent (P)
impact
Stream name
mitigation
(square feet)
(square feet)
or Temporary
required?
T
Site 1
Greenway\hiking
House Creek
ElYes
725
2,366
® P El
trails
® No
Site 1
Streambank
House Creek
®Nos
7,029
163
[_1® P T
stabilization
Site 2
Greenway\hiking
House Creek
ElYes
501
1,999
® P [_1T
trails
® No
Site 2
Perpendicular
® Yes
®P [_1 T
Roadway
House Creek
El No
3,417
68
Crossing
Site 2
Perpendicular
❑ Yes
[_1 P ®T
Roadway
House Creek
No
2,994
0
Crossing
Site 3
Greenway\hiking
House Creek
ElYes
2,967
4,309
® P El
trails
® No
Site 3
®P❑T
Utility
House Creek
❑ Yes
No
0
143
Site 3
Perpendicular
®Yes
®P El T
Roadway
House Creek
El No
4,357
1,060
Crossing
Site 3
Perpendicular
El Yes
[_1 P ®T
Roadway
House Creek
No
526
0
Crossing
Site 3
Parallel
House Creek
® Yes
1,299
0
® P ❑ T
Roadway
❑ No
Site 4
® P ❑ T
Parallel
Roadway
House Creek
®Yes
❑ No
5,169
3,472
6h. Total buffer impacts
28,984
13,580
6i. Comments: Unavoidable permanent impacts to the protected riparian buffer associated with House Creek will result from
the proposed roadway widening and sections of parallel roadway, streambank stabilization, realignment of the adjacent
greenway system, and modifications to existing utilities. Temporary impacts to House Creek buffers will occur as a result of
construction access as part of the roadway widening.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Impacts to the streams and protected riparian buffers within the project corridor were minimized and avoided to the extent
practical. The widening will be constructed mostly within existing right-of-way and the alignment was designed to minimize
stream and buffer impacts. Where possible, grass ditches will be utilized to intercept and slow stormwater drainage, retaining
walls will be constructed to protect adjacent streams, and fill slopes have been tightened to 2:1 to avoid additional impacts to
features. The proposed culvert has been sized to allow for high -flow events and will be buried to allow aquatic movement
through the system.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Impacts to the streams and protected riparian buffers within the project corridor will be minimized to the extent practical
throughout the construction process by avoiding these features with equipment, materials, and access corridors. Where
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feasible, equipment staging and construction access will be located in upland areas throughout the corridor, and silt fencing
will be installed around the permitted limits of disturbance to ensure all equipment is located within the permitted areas.
Sediment control measures will be used to reduce stormwater impacts to receiving waters and minimize runoff from the
construction sites.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
® Yes ❑ No
2b. If yes, mitigation is required by (check all that apply):
® DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this project?
® Mitigation bank
® Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank: Restoration Environmental Services, LLC
3b. Credits Purchased (attach receipt and letter)
Type Buffer
Quantity 65,055 buffer credits
3c. Comments: Compensatory mitigation has been proposed for unavoidable impacts to Buffer Zone 1 at a 3:1 ratio and
Buffer Zone 2 at a 1.5:1 ratio when required by the Neuse River Basin Riparian Buffer Rules. To offset these losses, riparian
buffer credits have been reserved through payment to a private mitigation bank, Resource Environmental Solutions, LLC. The
Statements of Availability from the mitigation banks have been included as part of this application.
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
® Yes
4b. Stream mitigation requested:
21 linear feet
4c. If using stream mitigation, stream temperature:
® warm ❑ cool ❑cold
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non -riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments: Compensatory mitigation at a 1:1 ratio has been proposed for the 21 linear feet of permanent impacts to
House Creek due to the culvert replacement. House Creek is a degraded, urban, straight perennial stream that parallels Blue
Ridge Road through much of the corridor, and eventually converges with Crabtree Creek. House Creek scored "Low" on the
attached NCSAM assessment.
Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
N/A
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6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
® Yes ❑ No
buffer mitigation?
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
6c.
6d.
6e.
Zone
Reason for impact
Total impact
Multiplier
Required mitigation
(square feet)
(square feet)
Zone 1
Perpendicular Roadway
14,242
3
42,726
Crossing; Parallel Roadway
Zone 2
Perpendicular Roadway
4,600
1.5
6,900
Crossing; Parallel Roadway
6f. Total buffer mitigation required:
49,626
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
Compensatory mitigation has been proposed for unavoidable impacts to Buffer Zone 1 at a 3:1 ratio and Buffer Zone 2 at a
1.5:1 ratio when required by the Neuse River Basin Riparian Buffer Rules. To offset these losses, riparian buffer credits have
been reserved through payment to a private mitigation bank, Resource Environmental Solutions, LLC. The Statements of
Availability from the mitigation banks have been included as part of this application.
6h. Comments: Unavoidable permanent impacts to the protected riparian buffer associated with House Creek will result from
the proposed roadway widening and sections of parallel roadway, streambank stabilization, realignment of the adjacent
greenway system, and modifications to existing utilities. According to the Neuse River Buffer Rules, impacts due
streambank stabilization, greenway/hiking trails, and non -electric utility line impacts other than perpendicular crossings in
Zone 2 only are "Allowable". Impacts due to perpendicular road crossings that impact >150 LF or >1/3 ac. and road
impacts other than crossing of streams not at an angle between 75 and 105 degrees is "Allowable with Mitigation" .
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PCN Form —Version 1.3 December 10, 2008 Version