You can copy from here when filling out the rest of the page.
Proposed marina expansion in Pentwater Lake, located at 205 Dover, Oceana County, Pentwater, Michigan
Please open the attachment to view the full Public Notice.
US Army Corps
of Engineers
Public Notice
Detroit District
Applicant:
Larry Conroy, Pentwater Yacht Club
In Reply Refer To:
Corps File No. LRE-1994-470017-S18
Date: March
Expires: April
21, 2018
10, 2018
Proposed marina expansion in Pentwater Lake at Pentwater, Michigan
Applicant: Larry Conroy
Pentwater Yacht Club
PO Box 607
Pentwater, MI 49449-0607
Project Location: The site is located at 205 Dover, Pentwater, Section 14, Township
16 N, Range 18 W, Oceana County, Michigan, 49449.
Federal Authority: The applicant has applied for a Department of the Army permit
under Section 10 of the Rivers and Harbors Act of 1899.
Project Description: As shown on the attached plans, the applicant proposes to
expand an existing marina by removing the existing temporary piers, installing new
floating piers, seawalls, wave attenuators, personal watercraft (PWC) lifts and ice
barriers.
North Basin:
- Install a 50' by 4' walkable wave attenuator seawall along the west side of the basin.
- Remove existing temporary docking stations.
- Install two 13' by 6' PWC lifts in the north corner of the basin.
- Install three 13' by 5' PWC lifts in the north corner of the basin.
- Install a 42' by 4' main dock connected to a 8' by 3' ramp on the south side of the
basin with two 20' by 3' finger docks extending perpendicular from the main dock.
- Install five bubblers in various locations within the basin
South Basin:
- Install a 60' sheet pile seawall with a top cap on the south side of the basin as an
extension of the existing sheet piling.
- Install a 8' by 3' ramp attached to an 74' by 4' base dock on the south side of the
basin with three 20' by 3' finger docks extending perpendicular from the base.
File No. LRE-1994-470017-S18
March 21, 2018
- Install a 8' by 3' ramp attached to an 84' by 4' base dock on the northwest side of the
basin with four 20' by 3' finger docks extending perpendicular from the base.
- Install six bubblers in various locations within the basin.
- Install walkable wave attenuator seawalls in the following locations within the basin:
- 36' by 4', along the south side
- 40' by 4', on the northwest corner
- Install a 48' by 4', on the west corner
The proposed work would increase the size of the marina basin from 7,305 square feet
to 13,105 square feet and the number of slips from 20 to 24. The purpose of the
proposed work is replace the deteriorating and unsafe dock structures, protect them
from wave action, surge and winter ice, while expanding the marina's capacity to meet
the demands of the yacht club.
Other Authorizations:
A permit is required from the Michigan Department of Environmental Quality under
applicable provisions of the Natural Resources and Environmental Protection Act
(NREPA), 1994 PA 451. The State file number is 64-205 South Dover St-Pentwater.
Comments: We are publishing this notice in compliance with Title 33 Code of Federal
Regulations Parts 320-332. Comments on the project should be submitted in writing
and postmarked or delivered by the expiration date of this public notice. Comments of
a positive or negative nature may be submitted. All responses must refer to file number
LRE-1994-470017-S18. We will interpret a lack of response as meaning that there is
no objection to the permit application. Comments should be filed with:
Kerrie Kuhne
Chief, Permit Evaluation Western Branch
Regulatory Office
Detroit District, Corps of Engineers
477 Michigan Avenue
Detroit, Michigan 48226-2550
Comments may be e-mailed to: Brittnee.D.Shows@usace.army.mil, but must include a
name and mailing address.
2
File No. LRE-1994-470017-S18
March 21, 2018
Public Hearing: Any person may request, in writing, within the comment period
specified in this notice, that a public hearing be held to consider this application.
Requests for public hearings shall state, with particularity, the reasons for holding a
public hearing.
Evaluation: The decision whether to issue the Department of the Army permit will be
based on evaluation of the probable impacts of the proposed activity on the public
interest. That decision will reflect the national concerns for both protection and
utilization of important resources. The benefit which reasonably may be expected to
accrue from the proposal must be balanced against its reasonably foreseeable
detriments. All factors which may be relevant to the proposal will be considered
including the cumulative effects thereof; among those are conservation, economics,
aesthetics, general environmental concerns, wetlands, historic properties, fish and
wildlife values, flood hazards, floodplain values, land use, navigation, shoreline erosion
and accretion, recreation, water supply and conservation, water quality, energy needs,
safety, food and fiber production, mineral needs, considerations of property ownership,
and, in general, the needs and welfare of the people.
The Corps of Engineers is soliciting comments from the public; Federal, State, and local
agencies and officials; Indian Tribes; and other interested parties in order to consider
and evaluate the impacts of this proposed activity. Any comments received will be
considered by the Corps of Engineers to determine whether to issue, modify, condition
or deny a permit for this proposal. To make this decision, comments are used to
assess impacts on endangered species, historic properties, water quality, general
environmental effects, and the other public interest factors listed above. Comments are
used in the preparation of an Environmental Assessment and/or an Environmental
Impact Statement pursuant to the National Environmental Policy Act. Comments are
also used to determine the need for a public hearing and to determine the overall public
interest of the proposed activity.
Endangered Species: We will review this application for the potential impact on
threatened or endangered species pursuant to Section 7 of the Endangered Species
Act as amended. We are not aware of the presence of any listed species or critical
habitat at or in the vicinity of the proposed worksite. We invite information and/or
comments regarding the potential presence of, or impacts to, any listed species or
critical habitat.
Cultural Resources: The District Staff has reviewed existing information on historic
properties potentially affected by the proposed project, including the National Register
of Historic Places. There are no recorded historic properties within the permit area. The
permit area has been so extensively modified by modern development that little
likelihood exists for the proposed project to impinge upon an undisturbed historic
property.
3
File No. LRE-1994-470017-S18
March 21, 2018
The District Engineer invites responses to this public notice from federal, state and local
agencies, historical and archaeological societies, Indian tribes, and other parties likely
to have knowledge of or concerns with historic properties in the area.
Additional Information: This public notice and drawings are also available for
viewing/printing at:
http://www.lre.usace.army.mil/Missions/RegulatoryProgramandPermits/PublicNotices.as
px. Questions concerning this application may be directed to Brittnee Shows at the
Corps of Engineers address listed above, or telephone number (313) 226-4226.
FOR THE DISTRICT ENGINEER:
Kerrie Kuhne
Chief, Permit Evaluation Western Branch
Regulatory Office
NOTICE TO POSTMASTERS:
We request that the above notice be conspicuously and continuously posted for the
time period of this notice.
4
PYC Current Marina
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 1 OF 17
2
Pentwater Yacht Club showing the location on Pentwater Lake
and indicating the Current and Proposed Marina Expansion
Channel to Lake
Michigan
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 2 OF 17
3
2017 Survey
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 3 OF 17
4
PYC South Basin Final Configuration
with Wave Attenuators and New Seawall
Approximate
wave direction
from the
Channel
40 ft.
Main Docks: 84x4 and 74x4 ft.
Finger Docks: 7 each 20x3 ft.
Ramps: 8x3 ft. in red
48 ft.
New wave attenuator seawalls
walkable 4 ft. wide wood
decking on top surface
20 ft.
104 ft.
19.5 ft
17/18 ft.
Existing kayak
launch dock
10 ft.
10
ft.
Scale: 25 ft.
36 ft.
The black bars indicate
Wave Attenuator Trusses
spaced about 12 ft. apart
20 ft.
Riparian line
80
ft.
New Sea Wall of Steel Sheet piling
with top cap about 60 ft. in length
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 4 OF 17
PYC
Deck
50 ft.
Existing sheet pilings
PYC North Basin Final Configuration with
Wave Attenuator and Permanent Docks
5 each PWC
Ports
85 ft.
Riparian
Line
The black bars indicate
Wave Attenuator
Trusses spaced about
12 ft. apart
PWC 13 ft. by 6 ft.
25
ft.
PWC 13 ft. by 5 ft.
PYC
Deck
PYC Club
House
Main Dock: 42x4 ft.
Finger Docks: 2 each 20x3 ft.
Ramp: 8x3 ft. in red
25
ft.
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 5 OF 17
6
Wave Attenuator Truss Design
Wood Deck Design Concept (Cross section)
Wood deck 4 ft. wide
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 6 OF 17
7
Wave Attenuator Truss Design
4 ft.
The top of the Truss
level is the same as
the PYC deck
Water level
This distance (h) from the water
level to the lake bottom varies with
Wave Attenuator Truss location
h
Note:
1. The drawings are indicative of design intent and not necessarily
accurate as to final design dimensions
2. The I-beam is 6x6 inches with 0.250 inch wall thickness
3. The cross members are 6x6 box sections welded to the I-beams
The Wave Attenuator Truss extends
the distance (h) into the lake bottom
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 7 OF 17
h
8
Wave Attenuator Wall side view
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 8 OF 17
Wood Deck
Wooden Pallet structure long
boards are 2x10 and each
Pallet is about 12x5 ft.
Steel H-Beam
1 ft.
Water level
Bottom
Note:
1. The drawings are indicative of design intent and not necessarily
accurate as to final design dimensions
2. The H-beam is 6x6 inches with 0.250 inch wall thickness
3. This shows a 12 ft. section of the Wave Attenuator Wall
9
Wave Attenuator Wall top view
with Wall Pallets and Cable Ties
The 4x6 vertical Stringers
extend above the deck surface
to form the railing supports
1 ft.
Cables added for additional stability
Angle iron beams
welded to top of Truss
for added structural
stability
Note:
1. The drawings are indicative of design intent and not necessarily accurate as to
final design dimensions
FILE NUMBER: LRE-1994-470017-S18
2. The H-beam is 6x6 inches with 0.250 inch wall thickness
Pentwater Yacht Club - Expansion
3. This shows a 12 ft. section of the Wave Attenuator Wall
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 9 OF 17
10
Wave Attenuator Wall side view and
support structure indicated
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 10 OF 17
1 ft.
Angle iron welded to I-beams along the whole length of the Wave
Attenuator - see also the attenuator Truss design detailed drawing
Steel H-Beam
Cables added for additional stability
Water
level
Bottom
Note:
1. The drawings are indicative of design intent and not necessarily
accurate as to final design dimensions
2. The H-beam is 6x6 inches with 0.250 inch wall thickness
3. This shows a 10 ft. section of the Wave Attenuator Wall
11
Approximate Bottom Depth
Profile of the Lake around
the Pentwater Yacht Club
Note: Depth measurements are in ft.
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 11 OF 17
12
PYC South Basin Final Configuration with
Wave Attenuators, Permanent Docks and New
Seawall and Bubblers in Indicated Positions
Approximate
wave direction
from the
Channel
40 ft.
PYC
Deck
50 ft.
48 ft.
New wave attenuator seawalls
walkable 4 ft. wide wood
decking on top surface
Main Docks: 84x4 and 74x4 ft.
Finger Docks: 7 each 20x3 ft.
Ramps: 8x3 ft. in red
20 ft.
104 ft.
17/18 ft.
Existing kayak
launch dock
10 ft.
10
ft.
Scale: 25 ft.
36 ft.
The black bars indicate
Wave Attenuator Trusses
spaced about 12 ft. apart
19.5 ft
20 ft.
Riparian line
Existing sheet pilings
80
ft.
New Sea Wall of Steel Sheet piling
with top cap about 60 ft. in length
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 12 OF 17
This Symbol indicates
the Approximate
Locations of the Bubblers
PYC North Basin Final Configuration with
Wave Attenuator and Permanent Docks
with Bubblers in Indicated Positions
5 each PWC
Ports
85 ft.
Riparian
Line
25
ft.
The black bars indicate
Wave Attenuator
Trusses spaced about
12 ft. apart
PYC
Deck
PYC Club
House
Main Dock: 42x4 ft.
Finger Docks: 2 each 20x3 ft.
Ramp: 8x3 ft. in red
25
ft.
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 13 OF 17
This Symbol indicates
the Approximate
Locations of the Bubblers
14
North Basin: A --- A` indicates the location of
the Cross Section shown in the following Slide
5 each PWC Ports
85 ft.
Riparian
Line
25
ft.
The black bars indicate
Wave Attenuator
Trusses spaced about
12 ft. apart
A'
A
PYC
Deck
PYC Club
House
Main Dock: 42x4 ft.
Finger Docks: 2 each 20x3 ft.
Ramp: 8x3 ft. in red
25
ft.
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 14 OF 17
15
North Basin A --- A` Cross Section shown
25 ft.
Approximate water level Jan 2017
Cross Sections of 1 Hewitt Dock
finger pier and 1 PYC Port
Wave Attenuator
PYC Deck
Water Level
5 ft.
14 ft.
Existing Steel Pilings
Bottom
95 ft.
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 15 OF 17
16
South Basin: B --- B` and C --- C`
indicates the locations of the Cross
Sections shown in the following Slide
Approximate
wave direction
from the
Channel
40 ft.
PYC
Deck
50 ft.
20 ft.
104 ft.
19.5 ft
17/18 ft.
Existing kayak
launch dock
10 ft.
10
ft.
C'
36 ft.
C
B'
48 ft.
B
20 ft.
Riparian line
Existing sheet pilings
80
ft.
New Sea Wall of Steel Sheet piling
with top cap about 60 ft. in length
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 16 OF 17
Scale: 25 ft.
South Basin: B --- B` and C --- C` Cross Sections shown
25 ft.
Approximate water level Jan 2017
Note: The Cross Section of the Finger Piers is 36 inch wide X 15
inch high are not show to accurate scale on the drawing.
B --- B` Cross Section
Wave Attenuator Wall
90 ft.
PYC Deck
Water Level
7 ft.
Existing Steel Pilings
25 ft.
FILE NUMBER: LRE-1994-470017-S18
Pentwater Yacht Club - Expansion
Pentwater Lake
Pentwater, Oceana County, Michigan
SHEET 17 OF 17
Cross Sections of 4
Hewitt Dock finger piers
Bottom
C --- C` Cross Section
80 ft.
Water Level
PYC Deck
8 ft.
Existing Steel Pilings
17 ft.
Bottom
Wave Attenuator Wall
Cross Sections of 3
Hewitt Dock finger piers
18