20200516 Ver 1_More Info Received Email_20200601

Moore, Andrew W
From: Owen Carson <[e-mail]>
Sent: Monday, June 1, 2020 11:18 AM
To: Moore, Andrew W; Fuemmeler, Amanda J CIV (US); Leslie, Andrea J
Cc: Jason Seickel; David Tuch; Beth Bailey
Subject: RE: [External] RE: Sliver Line Park PCN - Need Additional Information
Attachments: LOA Wetland Impacts & Floodplain.REV.6.01.20.pdf; 5292020
_Silverline_Boat_Ramp_Detail_Stamped.pdf
mm(@nc.gov
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Andrew,
We have taken the time to review and address the second round of comments you provided on May 29, 2020 in regards
to the Silver -Line Park Project PCN. Attached you will find two documents that address comments #1 and #2 from your
email:
• Sheet LOA (Rev. 6.01.20) both depicts and accounts for the impact lengths associated with the boat ramp and
boulder toe; and
• Boat Ramp Detail (5.29.20) has been revised to show settling ponds located adjacent to and not within the river.
Please let us know if you have any questions about the updated information or if you require any further information
from us to satisfy your comments. Thank you again for the detailed and thorough review and we look forward to
moving this project along!
Best,
Owen Carson
Botanist / Senior Ecologist
A' EQ I N X
rtareb fQF+ng ao reo+:
Es#. OCO
37 Haywood Street, Suite 100
Asheville, NC 28801
[phone] extension 204
COVID-19 FIRM UPDATE:
Our firm is taking every precaution we can in order to keep our clients and staff healthy and safe as the situation with the coronavirus
(COVID-19) continues to develop.
As a result of the Buncombe County "stay home, stay safe" declaration and guidance from NC Governor Cooper, our staff are working
remotely through phase 1. With our technological capabilities, our staff will continue to work every day to meet our client's
needs. However, during phases 1 & 2, we will not be hosting any in -person client or stakeholder meetings at our office, nor will our
staff be meeting with clients and stakeholders elsewhere without following social distancing guidelines.

We appreciate your business and we are committed to service the needs of our clients. Thank you for your cooperation and patience
as we continue to work through these continuously -changing circumstances.
From: Moore, Andrew W [mailto:[e-mail]]
Sent: Friday, May 29, 2020 12:04 PM
To: Owen Carson <[e-mail]>; Fuemmeler, Amanda J CIV (US)
<[e-mail]>; Leslie, Andrea J <[e-mail]>
Cc: Jason Seickel <[e-mail]>; David Tuch <[e-mail]>; Beth Bailey
<[e-mail]>
Subject: RE: [External] RE: Sliver Line Park PCN - Need Additional Information
Owen,
Thank you for the information. After reviewing the submitted documents, the Division has determined the application is
incomplete and cannot be processed. The application is on hold until all of the following information is received:
1. Please provide the lengths of proposed impacts within the French Broad River for the boat ramp and the river
bank boulder toe. These lengths should be measured parallel to river flow. [15A NCAC 02H .0502]
Detail 2 on Sheet 6 (Typical Coffer Dam) on the updated plan sheets appears to depict a series of settling ponds
constructed behind coffer dams within the French Broad River. The settling ponds are acceptable to treat turbid
water pumped from the isolated area behind the coffer dam. However, they must be constructed in an upland
area (i.e. not in the footprint of the river). Please note that Special Stilling Basins (Section 4.8.4 of the NCDOT
Erosion and Sediment Control Design and Construction Manual) have also been shown to be effective in these
situations. Please revise and re -submit Detail 2 on Sheet 6 without the series of settling ponds depicted within
the river. [15A NCAC 02H .0506(b)]
Pursuant to Title 15A NCAC 02H .0502(c), the applicant shall furnish all of the above requested information for the
proper consideration of the application. If all of the requested information is not received, the Division will be unable to
approve the application and it will be denied as incomplete.
Feel free to contact me if you have any questions.
Andrew W. Moore, PG
Environmental Specialist — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4684 office
email: Andrew.W.Moore(a)ncdenr.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28778
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Owen Carson [mailto:[e-mail]]
Sent: Wednesday, May 27, 2020 9:29 AM

To: Fuemmeler, Amanda J CIV (US) <[e-mail]>; Moore, Andrew W
<[e-mail]>; Leslie, Andrea J <[e-mail]>
Cc: Jason Seickel<[e-mail]>; David Tuch<[e-mail]>; Beth Bailey
<[e-mail]>
Subject: [External] RE: Sliver Line Park PCN - Need Additional Information
Importance: High
eternal email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Hey Amanda,
It was nice talking to you earlier this morning, glad to hear y'all are doing well.
I am writing to provide our official response to the comments made by USACE, NCWRC, and NCDWR in regards to the
Silver -Line Park Project PCN. Attached you will find a spreadsheet containing a compilation of all of the comments from
the various agencies and our according response to each. Also attached is a pdf compilation of updated plan sheets
corresponding to our comment response. Please let us know if have any questions or require any further information to
finalize the PCN.
Thanks, and have a great week!
Owen Carson
Botanist / Senior Ecologist
AVEQINX
cofob foronv ?o reo+s'
37 Haywood Street, Suite 100
Asheville, NC 28801
[phone] extension 204
COVID-19 FIRM UPDATE:
Our firm is taking every precaution we can in order to keep our clients and staff healthy and safe as the situation with the coronavirus
(COVID-19) continues to develop.
As a result of the Buncombe County "stay home, stay safe" declaration and guidance from NC Governor Cooper, our staff are working
remotely through phase 1. With our technological capabilities, our staff will continue to work every day to meet our client's
needs. However, during phases 1 & 2, we will not be hosting any in -person client or stakeholder meetings at our office, nor will our
staff be meeting with clients and stakeholders elsewhere without following social distancing guidelines.
We appreciate your business and we are committed to service the needs of our clients. Thank you for your cooperation and patience
as we continue to work through these continuously -changing circumstances.
From: Fuemmeler, Amanda J CIV (US)[mailto:[e-mail]]
Sent: Monday, May 11, 2020 10:30 AM
To: Owen Carson<owen(@eauinoxenvironmental.com>
Cc: Moore, Andrew W <[e-mail]>; Leslie, Andrea J <[e-mail]
Subject: Sliver Line Park PCN - Need Additional Information

Hi Owen,
I'm finally getting a chance to look through the PCN and WRC's comments. Below are my comments/questions that need
to be addressed before PCN is considered complete:
1. On Plan Sheet LO.4, there's a wetland impact that appears unaccounted for (see red circle on attached plan
sheet). This will need to be included in the PCN if not already.
2. For the boat ramp, will need linear footage of impact to river bank as well as cubic yards of material excavated
and/or filled below OHWM. Also, will need to provide information as to why ramp will be wider than 20-feet and
please address what type of/expected boats will be using the ramp. This will need to be included in the PCN.
3. Construction sequencing details for boat ramp notes installation of coffer dam. Will need details submitted for
the coffer dam and if below OHWM then will need to include in the PCN as temporary open water impact.
4. 1 will process the PCN under NWP #42 which should cover the wetland fill and the boat ramp — Andrew does this
work for you?
5. Please clarify if any trees/number of trees that will be removed along the French Broad River.
Let me know if you have any questions, thanks.
Amanda Jones
Regulatory Specialist
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
828-271-7980 ext. 4225

Silver -Line Park Boat Ramp Design
Buncombe County, North Carolina
Town of Woodfin
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Contact Information
Client/Owner:
Town of Woodfin
[phone]
[e-mail]
Landscape Architect:
Equinox
[phone]
[e-mail]
IN THE EVENT OF A FUEL OR CHEMICAL SPILL: CALL 911
IN THE EVENT OF THE RELEASE OF A PLUME OF SEDIMENT: NC DEQ [phone]
IN THE EVENT OF AN INJURY THAT REQUIRES URGENT MEDICALATTENTION: CALL 911
March 26, 2020
GENERAL NOTES:
Sheet List Table
Sheet Number
Sheet Title
WW-1.0
Title Page
Boat Ramp - Site
WW-2 0
Plan
Boat Ramp - Profile
WW-3.0
and Cross -Section
WW-4.0
Boat Ramp -
Cross -Sections
WW-5.0
Boat Ramp - Notes
and Details
WW-6.0
Dewatering Details
WW-7.0
Dewatering Details
1. THE CONTRACTOR SHALL LOCATE ALL UTILITIES ON -SITE, COORDINATE CONSTRUCTION WITH ALL UTILITY OWNERS, AND BE RESPONSIBLE FOR PROTECTING ALL UTILITIES DURING CONSTRUCTION. THE CONTRACTOR MUST
SCHEDULE ANY REQUIRED UTILITY ADJUSTMENT WITH THE UTILITY OWNER TO ELIMINATE CONFLICTS.
2. THE CONTRACTOR SHALL CONFORM TO ALL PLAN AND SPECIFICATIONS SHOWN HEREIN AND NOTIFY THE ENGINEER (S20) IMMEDIATELY UPON THE DISCOVERY OF CONFLICTS OR CHANGES NOT CONSISTENT WITH THE CONTRACT
DOCUMENTS.
3. THE CONTRACTOR SHALL HAVE COPIES OF ANY REQUIRED PERMITS ON SITE AT ALL TIMES AND COMPLY WITH ALL REQUIREMENTS OF THE PERMITS AT ALL TIMES.
4. S20 RECOMMENDS THE PERMITTING AUTHORITY OF THE PROJECT CONTACT ANDREW MOORE [phone] OF THE NCDEQ ASHEVILLE REGIONAL OFFICE ABOUT WATER QUALITY REGULATIONS, AS WELL AS AMANDA JONES
[phone] FROM THE ARMY CORPS OF ENGINEERS ABOUT PERMIT REQUIREMENT THRESHOLDS. NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (NC DEQ) STATES THAT BOAT RAMPS MAY BE CONSTRUCTED UNDER
A CAMA GENERAL PERMIT GIVEN THE SPECIFIC CONDITIONS LISTED IN 15A NCAC 07H .1300. NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES (DNR) DIVISION OF WATER QUALITY (DWQ) REQUIRES BOAT RAMP PROJECTS TO
BE IN COMPLIANCE WITH THE GENERAL PERMIT CONDITIONS AND PROVISIONS OF 15A NCAC 2H .1000, SESSION LAW 2006-246, AND SESSION LAW 2008-211 FOR STORMWATER MANAGEMENT.
5. THE CONTRACTOR IS RESPONSIBLE FOR, BUT NOT LIMITED TO, SUBMITTING PLANS FOR DELIVERY AND STORAGE OF MATERIALS AND SITE EQUIPMENT AS WELL AS FOR SITE ACCESS, EROSION CONTROL, TRAFFIC CONTROL, WATER
CONTROL AND DE -WATERING PLANS, PRIOR TO CONSTRUCTION.
6. THE CONTRACTOR IS RESPONSIBLE FOR PROTECTING ALL EXISTING SITE INFRASTRUCTURE AND VEGETATION AS DIRECTED BY THE ENGINEER (S20), INCLUDING BUT NOT LIMITED TO, CONCRETE, ASPHALT, SITE CIRCULATION
PATHS, CURB AND GUTTER, TREES, SHRUBS, GRASSES, AND ALL SOFT OR HARDSCAPE OUTSIDE OF THE IMMEDIATE CONSTRUCTION AREA AND ITS REPLACEMENT IN THE EVENT IF DAMAGE TO EQUAL OR BETTER CONDITION.
7. THE CONTRACTOR IS RESPONSIBLE FOR CONSTRUCTION SURVEY INCLUDING BUT NOT LIMITED TO CONSTRUCTION STAKING AND ESTABLISHMENT OF CONTROL POINT LOCATIONS AND ELEVATIONS.
8. IN AREAS OF DISTURBANCE, THE CONTRACTOR SHALL ADHERE TO THE REVEGETATION PLAN PER EQUINOX ENVIRONMENTAL WITH CONCERNS TO TOPSOIL REMOVAL, STOCKPILE, AND SPECIAL TREATMENT OF RIPARIAN AREAS.
9. IF PREVIOUSLY UNKNOWN HISTORIC OR ARCHEOLOGICAL REMAINS ARE DISCOVERED DURING CONSTRUCTION, THE CONTRACTOR MUST IMMEDIATELY STOP WORK AND NOTIFY BOTH THE OWNER'S REPRESENTATIVE AND S20 OF
THESE ITEMS AND WORK MAY NOT COMMENCE UNTIL WRITTEN APPROVAL IS GIVEN TO PROCEED.
10. THE CONTRACTOR MUST BE AVAILABLE AND PROVIDE ALL NECESSARY RESOURCES FOR PERIODIC INSPECTIONS FROM REGULATORY AGENCIES, INCLUDING BIT NOT LIMITED TO THE UNITES STATES ARMY CORPS OF ENGINEERS OF
THE NORTH CAROLINA DEPARTMENT OF PUBLIC HEALTH, AT ANY TIME DURING THE CONSTRUCTION TIME PERIOD. THIS PERIOD INCLUDES PRE -CONSTRUCTION AND POST -CONSTRUCTION.
11. THE CONTRACTOR MUST MEET ALL REQUIREMENTS FOR BMP'S AS DESCRIBED IN THE CONSTRUCTION SPECIFICATIONS.
12. THE CONTRACTOR IS RESPONSIBLE FOR MANAGING A SAFE SITE ON ACCORDANCE WITH LOCAL CODES AND REGULATIONS.
13. ALL STAGING AND STOCKPILING AREAS SHALL ADHERE TO THE FLOODPLAIN PERMITTING REGULATIONS AND REQUIREMENTS.
14. THE CONTRACTOR IS RESPONSIBLE FOR MONITORING ALL SITE SAFETY REQUIREMENTS AND REGULATIONS THROUGH THE ENTIRE DURATION OF ON -SITE CONSTRUCTION ACTIVITIES.
MATERIAL SPECIFICATIONS:
Bedding Material
A. Bedding material consisting of a well graded 3" to 4" cobble and sand mixture or approved native alluvium shall be placed to a depth no greater than 12
inches, on top of all installed filter fabric, prior to the placement of boulder so as to prevent tearing or ripping.
Boulder
A.
B.
C
E
F
Individual stone boulders shall be dense, sound and free from cracks, seams and other defects conducive to accelerated weathering.
The boulders shall be weathered to sub -rounded in shape. At a minimum exposed rock should have one flat surface and this should be the only exposed
surface.
Boulders shall be sound, hard, durable particles free from silt, clay, shale, sandstone, flaky particles, topsoil, organic matter, and other deleterious materials.
a.The Contractor shall remove silt, clay, topsoil and other deleterious materials from the surfaces of the boulders in such a way as to
prevent excess turbidity levels within the river or inhibit the bond with concrete, prior to transporting the boulders to the site.
The Contractor shall stockpile the materials on -site in a manner that requires the minimum amount of material handling and that prevents the contamination
of the boulders with underlying soils.
a.Placement of a gravel bed may be necessary as directed by the Engineer.
All boulder shall have the following properties:
a.Bulk specific gravity (saturated surface -dry basis) not less than 2.5.
b.Absorption not more than 2% by weight.
c.Rock that fails to meet these requirements may be accepted only if similar rock from the same source has been demonstrated to be
sound after five years or more of service under conditions of weather, wetting and drying, and erosive forces similar to those anticipated.
Alternatively native or imported stone, already at the site and meeting the standards outlined above, may be used.
d.The ratio of maximum to minimum boulder dimensions shall not exceed 3.0.
Boulders shall be fieldstone with the following gra
Effective Particle Size Diameter (ft)
Percent Passing by Mass (%]
2.5
0-40
3.0
40-6❑
3.5
6D-100
G. All boulder supplied by the contractor shall comply with the following standards:
Specification
Test Description
Test Method
Requirement
Bulk Specific Gravity and Adsorption
ASTM method C127
2.5, minimum
Los Angeles Machine Test
Abrasion Resistance
15% loss, maximum
Method C535
Soundness by use of Sodium/Magnesium
Sulfate
ASTM D5240-04
5% lass, maximum
Soundness by Freezing and Thawing
ASTM D5312-04
5% loss, maximum
Unified Compressive Strength of Drilled
Core Specimen
AASHTO T 24
2500 psi, minimum
Cement
Type GU, general use Portland cement, with a total alkali content less than .65% (na2o equivalent) and a compressive strength of 3000 psi or greater as specified.
A. All cement shall be derived from a single manufacturing source for the duration of the contract for consistent quality and compatibility of all concrete materials.
Filter Fabric
A. The Contractor shall furnish all non -woven filter fabric as described in the Construction Documents (or an equivalent approved by the Engineer in writing).
B. Filter fabrics shall be installed per manufacturer's recommendations.
C. Filter fabrics shall be placed in direct contact with undisturbed bank materials.
D. Filter Fabric shall be free of tears of rips prior to and following boulder installation.
E. To protect filter fabrics during construction a layer of bedding material, with a 6 inch minimum depth, shall be placed over all filter fabrics prior to receiving
boulder installations.
CONSTRUCTION SEQUENCE:
1. Call 811 (North Carolina) OR 1-800-632-4949 from anywhere in the U.S for utility
information. Call 2 business days in advance before you begin construction,
grade or excavate for marking of underground member utilities.
2. Review and maintain all necessary construction permits.
3. Notify Owner's Representative and Engineer of anticipated start date.
4. Perform all specified Site Documentation.
5. Prepare and submit all specified Submittals;
6. Prepare and post all site safety and construction protocols-,
7. Identify construction access, staging, stockpiling, and oiling areas for Engineers
approval;
8. Install BMPs, barrier fencing, signs, and safety protocols;
9. Locate and clearly mark, all onsite utilities;
10. Protect in Place all permanent site features (i.e. trees, infrastructure, buildings,
utilities, etc.);
11. Locate and install all applicable temporary facilities;
12. Establish all necessary Survey Control, locations to be approved by the Engineer
prior to installation-, and
13. Perform rough survey stakeout of in -channel activities sufficient to describe
feature locations.
14. Install a cofferdam around the base of the ramp if water level is higher than the
ordinary high water elevation at the time of construction.
15. Pump out any remaining water form the site.
16. Excavate site to the lines, grades, slopes, and elevations shown in the drawings
or as needed to place structure or foundation rock.
17. Place any bank stabilization and sub -grade aggregate road base per the
construction plans.
19. Install footer structures and boulders per details on page WW-5.0
20. Mix and pour concrete per material specifications on page WW-5.0.
21. When final grades have been achieved and concrete had been solidified and
tested, remove all construction equipment from the site and permanently
stabilized any disturbed area per the Silver -line Park plans.
J2
S20 Design and Engineering
Scott Shipley, P.E.
318 Mcconnell Drive
Lyons CO, 80540,
USA
[phone]
Client -
Town of Woodfin
Proiect NamF
Silver -Line Boat Ramp
St:n i ic-
100% CDs
Drawing Name:
Title Page
Revisions:
Drawn Bv:
Sydney Salzwedel
Lhecked by:
Scott Shipley
Datr
03/26/2020
Vertical Datum:
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
WW_ 1. 0

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THE ELEVATION ALONG THIS CROSS—SECTION,
PERPENDICULAR TO THE BOAT RAMP ALIGNMENT
SHOULD BE AT A CONSISTENT ELEVATION OF:
1944.29'
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AREA, DEWATERING METHODS, STILLING BASINS, AND
Feet COFFERDAMS.
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THE ELEVATION ALONG THIS
PERPENDICULAR TO THE
SHOULD BE AT A CONSIS
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RAMP ,ALIGNMENT
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TIE—IN ELEVATION AT 1948.84'
THE ELEVATION ALONG THIS CROSS—SECTION,
PERPENDICULAR -TO THE BOAT RAMP ALIGNMENT
SHOULD BE AT A CONSISTENT ELEVATION OF:
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S20 Design and Engineering
Scott Shipley, P.E.
318 Mcconnell Drive
Lyons CO, 80540,
USA
[phone]
Client -
Town of Woodfin
Proiect NamF
Silver -Line Boat Ramp
Status'
100% CDs
Drawing Name:
Site Plan
Revisions:
Drawn Bv:
Sydney Salzwedel
unecked by:
Scott Shipley
Date:
03/26/2020
Vertical Datum:
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
ww- 2.0

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GRADE BREAK STA 0+00.00
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BOAT RAMP PROFLE
VERTICAL CURVE
24'- 10"
SECTION A' —A
STA: 0+80.00
ELEV:1947.65
anon
SECTION A' A
TIE OUT AT RIVERBED
GRADE BREAK STA = 1+12.05
EEEV = 1942.840
GRADE BREAK STA 0+79.61
EEEV 1947.711
SECTION B'—B
STA: 0+90.00
ELEV:1946.12
ORDINARY HIGH WATER
STA: 0+97.00
ELEV: 1945.10'
�__ _'5 - 02%
1 +00 SECTION C'—C
STA:1+00.00
ELEV:1944.65
1950
1940
'5
0 6 12
Feet
HORIZONTAL & VERTICAL SCALE
- — — —
— — — — — — — — — — — —
-
--------
BOAT RAMP ELEVATION
AT1947.68'
BOAT RAMP ELEVATION — — — — — _ _
AT 1947.68'
— — — — —
EXISTING GRADE -
- — —
PROPOSED GRADE
EXISTING STORM
DRAIN PIPE
— — —
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UPLAND PER EQUINOX.
REFER TO SHEET L6.0 FOR
p 1 6" CONCRETE
INSTALL 12" MINIMUM
VEGETATION PLAN
BOAT RAMP
ALLUVIAL RIPRAP
CLASS 6 ROADBASE 6"
LIFT COMPACTED TO
EXISTING SUBGRADE
98% STANDARD PROCTOR
INSTALL 36" DIAMETER BOULDER
SIDE &TOP D-1
COMPACT SUBGRADE TO
FOOTING
98% STANDARD PROCTOR
INSTALL FILTER FABRIC (DIRECT
OR UNDISTURBED ALLUVIUM
CONTACT W/ UNDISTURBED SUBGRADE)
p 1 #4 REBAR ON 12"
CENTERS EACH WAY
-40
-30
-20
-10
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20
30
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-1950
-1940
1930
50
0 5 10
Feet
HORIZONTAL & VERTICAL SCALE
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S20 Design and Engineering
Scott Shipley, P.E.
318 Mcconnell Drive
Lyons CO, 80540,
USA
[phone]
Client:
Town of Woodfin
Project Name -
Silver -Line Boat Ramp
Status:
100% CDs
Drawing Name:
Profile and Cross Section
Revisions:
Drawn By:
Sydney Salzwedel
Checked By:
Scott Shipley
Date:
03/26/2020
Vertical Datum:
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
ww- 3.0

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1960
1950-
1940-
SECTION B'-B
— — — — ----
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BOAT RAMP ELEVATION —
_ -----
AT 1945.81'
------
EXISTING GRADE --------__
—
PROPOSED GRADE
—
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UPLAND PER EQUINOX.
I-
REFER TO SHEET L6.0 FOR
-
INSTALL 12" MINIMUM VEGETATION PLAN
ALLUVIAL RIPRAP
p 1 6" CONCRETE
BOAT RAMP
CLASS 6 ROADBASE 6"
LIFT COMPACTED TO
98% STANDARD PROCTOR
INSTALL 36" DIAMETER BOULDER
SIDE &TOP p 1
FOOTING
COMPACT SUBGRADE TO
98% STANDARD PROCTOR
INSTALL FILTER FABRIC (DIRECT
OR UNDISTURBED ALLUVIUM
CONTACT W/ UNDISTURBED SUBGRADE)
EXISTING SUBGRADE7
p 1 #4 REBAR ON 12"
CENTERS EACH WAY
1930-16
—50
1960
1950
1940
1930--16-
-50
-40 -30 -20 -10 0
BOULDER TOE BANK STAILIZATION
PER EQUINOX. REFER TO SHEET L15.3 FOR DETAIL
J JJ 1.1111 III `.rr
SIDE & TOP Q 1
FOOTING
EXISTING SUBGRADE
SECTION C'-C
D_1 6" CONCRETE
BOAT RAMP
— CLASS 6 ROADBASE 6"
LIFT COMPACTED TO
98% STANDARD PROCTOR
COMPACT SUBGRADE TO
98% STANDARD PROCTOR
OR UNDISTURBED ALLUVIUM
0
20
BOAT RAMP ELEVATION
AT 1944.29'
�7
30
.R
EXISTING GRADE
— PROPOSED GRADE
INSTALL 12" MINIMUM
ALLUVIAL RIPRAP
INSTALL 36" DIAMETER BOULDER
INSTALL FILTER FABRIC (DIRECT
#4 REBAR ON 12" CONTACT W/ UNDISTURBED SUBGRADE)
CENTERS EACH WAY
LX 2
WH I'
-1960 S20 Design and Engineering
Scott Shipley, P.E.
318 Mcconnell Drive
Lyons CO, 80540,
USA
[phone]
Client:
-1950 Town of Woodfin
-1940
Project Name -
Silver -Line Boat Ramp
1930 Status:
50 100% CDs
0 5 10
Feet
HORIZONTAL & VERTICAL SCALE
Drawing Name:
Cross Sections
UPLAND PER EQUINOX.
REFER TO SHEET L6.0 FOR
VEGETATION PLAN
40 -30 20 -10 0 10 20 30 40
1960
1950
1940
-61930
50
0 5 10
Feet
HORIZONTAL & VERTICAL SCALE
Revisions:
Drawn By:
Sydney Salzwedel
Checked By:
Scott Shipley
Date:
03/26/2020
Vertical Datum: I
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
ww- 4.0

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%$" x 1" DEEP SAW CUT,
FILL W/ SPECIFIED
EPDXY JOINT FILLER
SLEEVE OR PRE -ATTACHED
POLYETHYLENE COVERING
APPLY BOND BREAKER
1/2" 0 X 24" LONG SMOOTH
DOWELS @ 12" O.C.
SET AT MID DEPTH OF SLAB
(#4 REBAR @ 12" O.C.
EACH WAY NOT SHOWN)
6- r
18" _F---
J—
91,
24"
42"
CONSTRUCTION JOINT (OPTIONAL)
SECTION SCALE 1 "=2'
Portland Cement Concrete Pavement
(Section 700 NC 2018 Standards and Specifications for Roads and Structures)
PREPARATION OF SUBGRADE AND BASE:
- Prepare the subgrade and base beneath Portland cement concrete pavement in accordance with the applicable sections of
these Specifications and with a grading tolerance of ± 1/4 inch from the established grade on mainline lanes and a grading
tolerance of ± 1/2 inch in all other areas. Use approved automatically controlled grading and paving equipment to produce final
subgrade and base surfaces meeting the lines, grades and cross sections required by the plans or as directed. When in the
judgment of the Engineer the use of such equipment is impractical, this requirement will be waived.
- Dampen the surface of the base at the time the concrete is placed. Sprinkle the base when necessary to provide a damp
surface. Ensure that no free water or ponding is present at the time of concrete placement. Correct all damaged areas in the
subgrade or base before placing concrete.
- Do not allow traffic on the underlying asphalt courses other than necessary local traffic and essential construction equipment as
authorized by the Engineer.
- Unless otherwise approved, use and maintain a braided metal cable stringline reference to control the profile and alignment of
the concrete pavement. Monitor the stringline for accuracy and tautness. Set pins at a distance no farther than 50 feet apart.
When located on a vertical curve, set pins no farther than 25 feet apart.
INSTALL FOOTER STRUCTURES
-Stone boulders shall be placed as shown on the drawings, without any gaps, so that each boulder is in direct contact with all
surrounding boulder.
-Boulder to be placed on subgrade compacted to 95% of maximum as determined by the standard proctor method (ASTM
d-698-66t or AASHTO t 99) or undisturbed native alluvium.
-Non-woven 8oz filter fabric (Mirafi 180n or equivalent) shall be placed in intimate contact with undisturbed bank materials and
overlain with a minimum depth of 6 inches of bedding material prior to the placement of all boulder within the active river channel.
PLACING CONCRETE
(A) General
Note: No wet concrete is to come in contact with surface water. See sheet WW-6.0 for dewatering notes.
Use a slip form paver to place concrete except where impractical due to irregular areas or areas of existing pavement adjacent to
the proposed pavement. Handle concrete so as to prevent segregation and keep free from mud, soil or any other foreign matter.
Do not pave when any of the following conditions exist:
(1) A descending air temperature at the location of the concrete paving operation and away from artificial heat reaches 35°F.
Paving may resume when the weather forecast is projected to reach a high of 40°F on that day's operation and the morning
ambient temperature is above 32°F.
(2) The subgrade or base course is frozen.
(3) Aggregates to be used in the mix contain frozen particles.
(4) Air temperature in the shade is 90°F and rising or the concrete temperature is greater than 95°F.
Where additional pavement, aggregate or soil must be placed adjacent to new pavement by machine methods, do not place it
until the concrete has attained a compressive strength of at least 3,000 psi. Construction equipment or hauling equipment will not
be allowed over the pavement until the concrete has attained a compressive strength of 3,000 psi.
(B)Grout: Mixing and Transporting Concrete
Use mixers capable of producing concrete that is thoroughly mixed, of a uniform mass, and discharging the concrete such that
the concrete mixture and aggregates are uniformly distributed.
(C)Preparation and Placement of Concrete
Completely discharge and place concrete in place no later than 90 minutes after the cement has been mixed with water or
aggregates. Spread the concrete uniformly over the entire area without segregation. Perform the spreading with a
mechanical spreader independent of the paver except where hand methods are necessary due to pavement design,
equipment breakdown or other emergencies. Place the concrete in continuous operation until the unit section is
completed. Use a concrete placing rate that ensures that each layer is placed while the previous layer is soft or plastic,
the two layers become monolithic by penetration of the vibrators, and cold joints are not produced.Place boulder
concrete such that the concrete penetrates and fills the voids between the boulders. place boulder concrete for each
pour after the boulders are in their proper position and of a significant size to create a monolith of significant
proportions (greater than 5 boulder widths or 1500 square feet). Limit the lateral extent of each pour such that the
concrete is completely contained within the boulder mass. Remove and replace any concrete that extends beyond the
boulder mass and interferes with the proper placement of adjacent boulders or work.Place boulder concrete to the
specified depth. Uniformly and thoroughly compact concrete as it is being placed. Use vibrators of the proper size,
frequency and amplitude, supplemented by hand spading and tamping when required, to secure a dense,
homogeneous concrete and a good bond with the reinforcement, embedded items and boulders. For formed concrete,
compact concrete to provide a smooth formed surface free of air pockets and surface blemishes.The Contractor shall
level and scree concrete surfaces followed by floating and applying a trowel finish to produce a dense uniform surface,
free of blemishes, ripples, and trowel marks to the required lines, slopes, and elevations.
1 5/8" 2 3/8" 4"
1 r I r ri
RAID. 1"
/I'--
It-t 1.-Li„u. � 12"
O.C. EACH WAY
2 SURFACE CORRUGATIONS
D-1 SECTION SCALE 1 "=1'
BOAT RAMP
PLAN
NOTE: 4
1. TYPICAL CORRUGATION PATTERN SHOWN. ACTUAL CORRUGATION PATTERN MAY VARY WITH ENGINEERS APPROVAL. 5
2. CONTROL JOINTS SHALL BE CUT PARALLEL WITH CORRUGATION PATTERN AND SHALL NOT CROSS BETWEEN RIDGES.
3. PORTLAND CEMENT CONCRETE 4500 PSI (COMPRESSION) 28 DAY STRENGTH
6"
12"
�1
#4 REBAR @ 12" I 12"
REINVENTING WHIT WA
'' ' •�
M
O.C. EACH WAY
�•
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1/2�
6"
S20 Design and Engineering
_— —
III I—
•
24"
•„�
—
12"
CLASS 4 AGGRAGATE
1= —I —III
/
}'. �' ;
Scott Shipley, P.E.
ROADBASE II III
—
• _ _
�
318 Mcconnell Drive
MIRAFI 180N
FILTER FABRIC
II
. ,
•• s• .
12"
CLASS 4 AGGRAGATE 6" �`
Lyons CO, 80540,
.. •.
•
.I=11I
+
ROAD BASE
USA
I
(303) 81 9-3985
#4 REBAR @ 12°
1=III=III=III=III=
I I I I-1
I I-1 I I-1 I I III-1 I I
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O.C. EACH WAY
—III=1
=III=III=1 I I 1=1
EXISTING NATIVE
8
BACKFILL CUT
W/ NATIVE 12"
ALLUVIUM
KEYWAY
MINUS ALLUVIUM
STACK BOULDERS
Client
(36" DIA MIN)
3 END FOOTING
Town of Woodfin
D-1 SECTION
SCALE 1 "=2'
4 SIDE & TOP FOOTING
D-1 SECTION SCALE 1 "=2'
UUKKUhH I IUIVJ FIJ IJ 1 111417
#4 REBAR EPDXY COATED TYPE 3A OR POLYESTER RESIN
RAMP AND FOOTING TO BE CAST MONOLITHIC.
30'-0"
SCALE 1 "=3'
Proiect NamF
Silver -Line Boat Ramp
Status,
100% CDs
Drawing Name:
Notes and Details
Revisions:
Drawn Bv:
Sydney Salzwedel
Lnecked Lay:
Scott Shipley
Datr
03/26/2020
Vertical Datum:
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
ww- 5.0

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GENERAL NOTES:
(1) ALTERNATE COFFERDAM CONSTRUCTION METHODS SHOWN HEREIN ARE INTENDED TO DESCRIBE FUNCTIONALITY ONLY. ACTUAL
METHODS NECESSARY TO ACHIEVE A DRY WORK AREA ARE TO BE DETERMINED BY THE CONTRACTOR.
(2) ALL WORK MUST BE DONE IN THE DRY USING THESE METHODS.
(3) COFFERDAM CONSTRUCTION METHODS SHALL COMPLY WITH ALL PERMIT CONDITIONS AND ARE SUBJECT TO ENGINEERS
APPROVAL.
(4) ALL DEWATERING ACTIVITIES MUST OCCUR DURING THE CONSTRUCTION WINDOW DESCRIBED IN THE SPECIFICATIONS.
(5) THE COFFERDAM MUST BE DESIGNED TO WITHSTAND TYPICAL FLOWS, ANTICIPATED DURING THE PERIOD OF CONSTRUCTION.
(6) ANY WORK DONE OUTSIDE THE SPECIFIED CONSTRUCTION WINDOW REQUIRES SPECIAL PERMISSION AND REQUIRES THAT THE
CONTRACTOR REDESIGN THE WATER CONTROL FOR HIGH -FLOWS DURING THE EXPANDED CONSTRUCTION WINDOW.
(7) THE CONTRACTOR SHALL HAVE NO MORE THAN ONE (1) COFFER DAM IN PLACE IN THE RIVER AT ANY GIVEN TIME. PREVIOUS
WATER CONTROL MUST BE COMPLETELY REMOVED FROM RIVERBED PRIOR TO PLACEMENT OF SUBSEQUENT WATER CONTROL.
(8) SUGGESTED DIMENSIONS SHOWN IN THE TYPICAL DETAILS ARE MINIMUMS UNLESS THE CONTRACTOR ESTABLISHES, TO THE
ENGINEER'S SATISFACTION, THAT AN ALTERNATIVE FORM OF WATER CONTROL MEETS THE ENGINEER'S OBJECTIVES.
(9) DEWATERING OPERATIONS SHALL USE ONE OR MORE OF THE DEWATERING SUMPS SHOWN, WELL POINTS, OR OTHER MEANS
APPROVED BY LOCAL JURISDICTION TO REDUCE THE PUMPING OF SEDIMENT, AND SHALL PROVIDE A TEMPORARY SEDIMENT
BASIN OR FILTRATION BMP TO REDUCE SEDIMENT PRIOR TO RELEASE OFF -SITE OR TO A RECEIVING WATER. IN THIS CASE, A
STILLING BASIN DETAILED IN NORTH CAROLINA DEPT. OF TRANSPORTATION'S EROSION AND SEDIMENT CONTROL MANUAL,
SECTION 4.8.3 (1630.04) IS RECOMMENDED TO MEET LOCAL REQUIREMENTS.
(10) A MINIMUM OF 3 COIR BAFFLES WILL BE USED WITH A SPACING OF 4 THE BASIN LENGTH AND IN ACCORDANCE WITH SECTION 1640 OF
THE STANDARD SPECIFICATIONS (NCDOT ESC MANUAL). STEEL POSTS WILL BE USED TO HOLD IN PLACE.
(II) STILLING BASINS WILL BE CONSTRUCTED IN AN UPLAND AREA, NOT WITHIN THE FOOTPRINT OF THE RIVER.
(12) THE CONTRACTOR SHALL NOTIFY ENGINEER AND OWNER'S REPRESENTATIVE AT LEAST 24 HOURS PRIOR TO BUILDING OR
REMOVING A COFFER DAM. IN THE INSTANCE THAT A COFFER DAM NEEDS TO BE REMOVED DUE TO FLOOD THREAT THE
CONTRACTOR SHALL NOTIFY THE ENGINEER AND OWNER AS SOON AS POSSIBLE BUT SHALL PROCEED IMMEDIATELY WITH THE
EXPEDIENT REMOVAL OF THE COFFERDAM.
(13) WATER CONTROL MUST BE FREE FROM SUBSTANTIAL LEAKS AND MUST BE CONFIRMED BY S20 SO THAT CONTRACTOR IS NOT
WORKING IN ACTIVE FLOW.
(14) SUMPS MUST BE LEACHED A MINIMUM OF 30' FROM TO -BE -GROUTED STRUCTURES AND PREVENT PUMPING OF CONCRETACEOUS
MATERIAL BACK INTO THE RIVER.
(15) ALL STRUCTURES BUILT WITHIN THE RIVER CHANNEL MUST BE SEQUENCED SO THAT THE LOWEST OF ABSOLUTE ELEVATION, OF
THE STRUCTURES, ARE CONSTRUCTED FIRST OR AS DIRECTED BY AN S20 REPRESENTATIVE.
(16) CLIENT HAS THE ABILITY TO FORCE THE CONTRACTOR TO RECONSTRUCT WATER CONTROL IF THE CLIENT FEELS THAT THE
CONSTRUCTION PUTS THE ENVIRONMENT OR WORKERS AT RISK.
(17) THE CONTRACTOR MUST BE AVAILABLE FOR FLOOD EVENTS 24 HOURS A DAY, 7 DAYS A WEEK, DURING CONSTRUCTION.
I
VARIES
I
SANDBAGS
CONCRETE BARRIER I
POLYETHYLENE LINER
MIN. THICKNESS 8 MIL.
WATER SURFACE DRY WORK AREA
(ELEV. VARIES) y /� \
/ 4 a °d a d \
J
EXTEND LINER MIN. 4' �O�O�O�O�O _ EXISTING
BEYOND BARRIER & BURY RIVERBED
IN NATIVE ALLUVIUM O�OO�O�O�DOO�O O.
SANDBAGS
5 JERSEY BARRIER COFFER DAM TYPICAL
D-2 SECTION NITS
GRANULAR SAND WITH
LITTLE TO NO COBBLE
NOTES: I
(1) WATER CONTROL CHANNELS TO BE ARMORED, MAINTAINED, AND PROTECTED.
(2) WATER CONTROL CHANNEL TO BE REMOVED FROM RIVERBED IN THE INSTANCE OF A FORECASTED FLOOD.
(3) WATER CONTROL CHANNEL TO BE OF MINIMUM LENGTH TO ALLOW CONTRACTOR TO WORK IN THE AREA OF CONSTRUCTION.
(4) WATER CONTROL CHANNELS SHALL BE NO STEEPER THAN A 1% SLOPE AND NO FLATTER THAN 0.5% SLOPE 0" 100 TO 1" 200) AND SHALL NOT TO EXCEED
2.5' IN DEPTH AT FLOWS LESS THAN 200 CFS.
WATER CONTROL DIVERSION CHANNEL TYPICAL
SECTION
SANDBAGS
WATER SURFACE
(ELEV. VARIES) -�
1' MIN. C
EXTEND LINER MIN. 4' O C
BEYOND BARRIER & BURY.
IN NATIVE ALLUVIUM
SANDBAG COFFER DAM TYPICAL
SECTION
2' MIN.
POLYETHYLENE LINER
CD O 00
MIN. THICKNESS 8 MIL.
MAX SLOPE IH:2V
O C D\,F OR FLATTER
000
DRY WORK AREA
EXISTING COMPACTED
O000�Oc:�C) - RIVERBED
IAIATCr) OI Ir')CA/C
WATER FILLED COFFER DAM TYPICAL
SECTION
NTS
NTS
EXISTING
RIVERBED
IMPORTED, CLEAN, COBBLE,
MOUNDED TO HEIGHT SPECIFIED
AND COMPACTED
RIPRAP ARMORING
3' DIAMETER
BASE BOULDER MIN.
3 ALLUVIAL COFFER DAM TYPICAL
D-2 SECTION NTS
INSTALL WATER FILLED COFFER DAM ACCORDING
TO MANUFACTURER SPECIFICATIONS ON A SMOOTH
WORK SURFACE SUCH THAT MINIMUM LEAKAGE IS
OBSERVED THROUGH DAM.
DRY WORK AREA
NTS
NOTE: 4
1. TYPICAL CORRUGATION PATTERN SHOWN. ACTUAL CORRUGATION PATTERN MAY VARY WITH ENGINEERS APPROVAL. 5
2. CONTROL JOINTS SHALL BE CUT PARALLEL WITH CORRUGATION PATTERN AND SHALL NOT CROSS BETWEEN RIDGES.
3. PORTLAND CEMENT CONCRETE 4500 PSI (COMPRESSION) 28 DAY STRENGTH
COIR BAFFLES
DISCHARGE
OR PUMP II
PUMPED
DISCHARGE
TYPICAL COFFER DAM
PLAN
WATER SURFACE
(ELEV. VARIES)
/
APPROX. GROUND LEVEL
IN SETTLING PONDS
.� 2
S20 Design and Engineering
Scott Shipley, P.E.
318 Mcconnell Drive
Lyons CO, 80540,
USA
[phone]
RIVER FLOW
Client:
RIVER BANK Town of Woodfin
DIMENSIONS OF CHANNEL TO
ALLOW FOR A MINIMUM FLOW.
PIPES SHALL BE ALLOWABLE
TO CONVEY WATER PAST
WORKING AREA Project Name -
Silver -Line Boat Ramp
Status:
100% CDs
Drawing Name:
Dewatering Details
Revisions:
L_ L_ L_ i
��� L_ COFFER DAM
LLLL_
L_ L_ L_ L
Drawn By:
COIR BAFFLES
Sydney Salzwedel
Checked By:
Scott Shipley
NTS
COIR BAFFLES (MIN. 3) WITH SPACING OF 4 THE BASIN LENGTH
NOTE:
I. SCHEMATIC LAYOUT TO DESCRIBE FUNCTIONALITY ONLY. ACTUAL LAYOUT TO BE DETERMINED BY CONTRACTOR, PER PERMIT CONDITIONS.
TYPICAL SETTLING POND
SECTION
#4 REBAR EPDXY COATED TYPE 3A OR POLYESTER RESIN
RAMP AND FOOTING TO BE CAST MONOLITHIC.
TO
DISCHARGE
NTS
Date:
03/26/2020
Vertical Datum:
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
ww- 6.0

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PUMP SUCTION LINE
OR SUBMERSIBLE PUMP
CENTERED IN BUCKET
GRAVEL (CDOT SECT.
DEWATERING POND ALREADY FILLED WITH WATER
SECTION
PUMP SUCTION LINE
OR SUBMERSIBLE PUMP
CENTERED IN BUCKET
12" MIN. AROUND ON
ALL SIDES OF BUCKET
12" MIN.
BELOW BUCKET
NTS
'LASTIC 5—GALLON BUCKET WITH
✓ZANY S HOLES DRILLED IN SIDES
„gSHTO #3
703. #3)
LOWEST SUBGRADE
ELEVATION TO BE DEWATERED
1
LID WITH HOLE CUT2' MIN .
FOR SUCTION LINE
0 o PLASTIC 5—GALLON BUCKET WITH
o
• MANY $" HOLES DRILLED IN SIDES
AND BOTTOM
0 0 0 AASHTO #3 GRAVEL
(CDOT SECT. 703. #3)
DEWATERING SUMP FOR SUBMERSED PUMP
SECTION
NTS
NOTE: 4
1. TYPICAL CORRUGATION PATTERN SHOWN. ACTUAL CORRUGATION PATTERN MAY VARY WITH ENGINEERS APPROVAL. 5
2. CONTROL JOINTS SHALL BE CUT PARALLEL WITH CORRUGATION PATTERN AND SHALL NOT CROSS BETWEEN RIDGES.
3. PORTLAND CEMENT CONCRETE 4500 PSI (COMPRESSION) 28 DAY STRENGTH
DEWATERING PUMP
DISCHARGE LINE
STAKES TO
SECURE END OF
DISCHARGE LINE
4' (MIN.) SQUARE
RIPRAP PAD TO DISSIPATE
THE ENERGY OF THE FLOW
EXITING THE DISCHARGE LINE
12" MIN.
SETTLING POND
SURFACE AREA, "A"
1 SF PER 1 GPM
2' MIN.
MIN.
9 SUMP DISCHARGE SETTLING BASIN
D-2 SECTION NTS
1\11 I\MI
D50=6"
11 SETTLING BASIN
D-2 SECTION NTS
#4 REBAR EPDXY COATED TYPE 3A OR POLYESTER RESIN
RAMP AND FOOTING TO BE CAST MONOLITHIC.
2' MIN.
4' MIN.
F
2 X D50
(12" MIN.)
RIPRAP --"
D50=6" STABILIZE FLOW PATH TO
OUTFALL OR RECEIVING WATERS
LX 2
S20 Design and Engineering
Scott Shipley, P.E.
318 Mcconnell Drive
Lyons CO, 80540,
USA
[phone]
Client:
Town of Woodfin
Project Name -
Silver -Line Boat Ramp
Status:
100% CDs
Drawing Name:
Dewatering Details
Revisions:
Drawn By:
Sydney Salzwedel
Checked By:
Scott Shipley
Date:
03/26/2020
Vertical Datum:
NADD 88
Stamp:
REUSE OF DOCUMENT:
THIS DOCUMENT IS THE PROPERTY OF S20 DESIGN AND ENGINEERING. THE IDEAS, DESIGN
AND CONTENT INCORPORATED ON THIS DOCUMENT IS AN INSTRUMENT OF PROFESSIONAL
SERVICE AND SHALL NOT BE USED FOR ANY OTHER PROJECT WITHOUT THE WRITTEN
AUTHORIZATION OF S20 DESIGN AND ENGINEERING.
Scale: I Sheet:
ww- 7.0

=----------
W Know what's below.
— W -
Call before you dig.
INN
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STORMWATER WETLAND FROM
��\\\ ```\ JURISDICTIONAL WETLAND
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BOARDWALK WITH HELICAL PIERS
WEIR
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ENHANCED & EXPANDED WETLAND BY
" ------_
-_ _-__ '- -- --
CONSTRUCTED WETLAND TO
APPROX. 4,420 SF'_--\
\\ \\ \\\��\\
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EVEONT(2,800 SF TOTALORM
CONCRETE SIDEWALK CIRCULATION, TYP.
; �ir�'' , ;' ' `\
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STONE EDGE ALONG WETLAND
;// // // / / ; h -- —\\\ \\ \ /-- ♦_---_ \`_'_; ��\ \
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/ ..\ W W ROAD OVER // `• �°
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(4) 18" RCP
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/ // / / / / W W W W W W W W W W W W 1
FROM THIS LOCATION NORTH �!/'i'/i/ 'i i r 1 w E
�'� �/�// /' 1 I/ / /.r �tW W ".'i V W WW W W WyW v LW y \W\a W W.• \ ` _ =a\l\` \`\\`� \ ENHANCED
/ I `` SWALE • ,7 _
♦ _ `---_` (450 SF TOTAL \ \
JURISDICTIONAL \- ;/i//'/ / // --- ' )
INTERMITTENT STREAM (S-02a) /9;,,//� / '� "`` - ,_ \
FROM THIS LOCATION SOUTH %''��/�' , / ° /' `\ _ W _ _W W W\
TO FRENCH BROAD RIVER
/, // , / // � / � � j IlO '� ( ° _ .V � `� •w s• W- `� � �V--�----,I. _ � `r- � -. \ -. `V \ 'v� \ m \ W \ \ //' � 1 I I d' \ / r� /
1
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JURISDICTIONAL
PERENNIAL STREAM
--- // ri/'llil li r
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' NOTE: 158-----_-_-%��
BASE FLOOD ELEVATION (BFE)
1
\
S
ACROSS SITE: 1959
\
LEGEND , r '\ � 53
/� / I \
BOULDER TOE IMPACTS: 188LF I. \\ \ `\ -----
\\� 30' � \` `\� `\\ `\r�'\\1g50
\\ \ `\1 \/ \\ \\ \I
10
EXISTING JURISDICTIONAL FILL (5,336CY) BOAT RAMP IMPACTS: 53LF \ \
WETLAND
TOTAL LINEAR FOOT IMPACTS ON
WETLAND IMPACT AREA CUT (3,589CY) FRENCH BROAD RIVER: 241LF --- ,%\ -\\\ --\, \
(0.17 AC TOTAL) (SEE BOAT RAMP EXHIBIT FOR VOLUME N
OF IMPACTS BELOW THE OHW) \`,\`\\\ >,-_\ 1`\\ SCALE: 1"= 30'-0"
t
a.
04!L
- -
EQUINOX
37 Haywood St.
Suite 100
Asheville, NC 28801
t 828.253.6856
f 828.253.8256
SEAL
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DESIGN BY:
DRAWN BY:
CHECKED BY:
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Copyright©2019, Equinox Environmental
Consultation & Design, Inc.
PHASE
100% CDS
DATE
June 1, 2020
DRAWING SCALE
1"=30'
NOTE: If this drawing is not 2436" it has been revised
from its original size and the scales noted on
drawings/details are no longer applicable.
DRAWING NAME
WETLAND IMPACTS
& FLOODPLAIN
L094