HomeMy WebLinkAbout37000990768000_Conditional Use Permits_07-08-1998® OTTER TAIL COUNTY
Conditional Use Permit CUP^ a?
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Issued 7-f4 19Expires 1-^f 19^
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BY:
T NOTE: This card shall be placed in a conspicous place not more than 4 feet above grade on the premises on which work is
to be done, and shall be maintained there until completion of such work. NOTIFY DEPARTMENT OF LAND AND RESOURCE
MANAGEMENT, TELEPHONE (218) 739-2271 WHEN AUTHORIZED WORK HAS BEEN COMPLETED.
OTTER TAIL COUNTY, MINNESOTA
Board of County Commissioners
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c<A\y
Land and Resource Management Official
Alf^r,{ 15^1. Earthmoving shall be done between
2. Entire area shall be stabilized within 10 days of the completion of any earthmoving.
3. Owner is legally responsible for all surface water drainage that may occur.
4. No fill shall enter or be taken from the beds of a public water without a valid permit from the State of
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R A S •<% MM A KIm4ii*«mI Dm mm ■ • ■'mmm
828510
Offic'8 of County Recorder
County of Otter Tail
i hereby certify that the within Instrument was filed
for reeottl in this office on the Z3
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atnd was ‘duly Microfilmed as Doc.
day of
at M/.D. 19
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County Recorder
.DepiMy
THE ABOVE SPACE IS RESERVED FOR THE COUNTY RECORDER
APPLICATION FOR CONDITIONAL USE PERMIT
COUNTY OF OTTER TAIL
COURTHOUSE. FERGUS FALLS, MN 56537
(218) 739-2271
COMPLETE THIS APPLICATION IN BLACK INK « « «
Application Fee
Receipt Number
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}^Il3 Jkje. j£. 6Qg^i- /-gu~^n /)D >5^*07P
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DAYTIME PHONE CVO/ \ - Cx^SPPROPERTY OWNER
ADDRESS
SL- mi gdLAKE CLASSLAKE NUMBERLAKE NAME
Aidni.TOWNSHIP /P>GA/ RANGE ^3 60 TOWNSHIP NAMESECTION
FIRE NUMBER OR LAKE I.D. NUMBER _______________________________________________________
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LEGAL DESCRIPTION
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EXPLAIN YOUR REQUEST
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I UNDERSTAND THAT APPROVAL OF THIS REQUEST APPLIES ONLY TO THE USE OF THE LAND.
I ALSO UNDERSTAND THAT OTHER PERMITS MAY BE REQUIRED, IT IS MY RESPONSIBILITY TO
CONTACT LAND & RESOURCE MANAGEMENT REGARDING THIS MATTER.
- 9J>
SIGNATURE OF PROPERTY OWNER DATE
APPLICANT MUST BE PRESENT AT THE HEARING
(Applicant Will Receive Notification As To The Date/Time Of Hearing)
I
(m cL & R Official/Date
Accepted By Land & Resource
Time ’S fJVDate Of Planning Commission Hearing
Planning Commission Motion
A motion by Estes, second by Lochowitzer to approve as presented, the Aoplicant
should work with the Township in regards to the disposal of the spoil material
Uhe spoils may be placed in the road right-of-way with Township approval).
Chairman/Otter Tail County Planning Commission
County Board Action
U^^pproved As Recommended
commendedDenied AI
Other
7ate of Final ActionChairman/Otter^ail Counw Board of Commissioners
CONDITIONAL USE PERMIT #
L bTR Official/Date
Permit(s) required from Land & Resource Management
NoYes (Contact Land & Resource Management)
Copy of Application Mailed to Applicant And MN DNR
L & R Official/Date■r Vi.
bk 0797-006
287,304 • Victor Lundoen Co., Printers • Fergus Falls. Minnesota
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DESIGN REPORT
RICH BUCKLEY
LAKESHORE PROTECTION
The Buckley property is located in the NW 1/4 of Section 15,
(Lida Township), Otter Tail County, Minnesota.
The property is located on a point on the north side of Lake Lida.
GENERAL:
T. 136 N., R. 42 W.
DESIGN CRITERIA: The Natural Resources Conservation Service (NRCS)
• practice standards in the Field Office Technical Guide (FOTG)' were
used for design criteria. The primary practice is, Streambank and
Shoreline Protection (580). A supporting practice is Critical Area
Planting (342). The NRCS National Engineering Field Handbook, Chapter
16, Streambank and Shoreline Protection, and Slope Protection for Dams
and Lakeshores, Minnesota Technical Release 2 (TR2), October 1997,
were used for design criteria.
SOILS: The site is soil mapped Waukon loam (38E). This soil is well
drained, very deep,, with a water table depth greater than 6 feet. The
permeability is moderate. This soil is formed in moraines with till
parent material. The soil is typically loam and clay loam material.
The Unified Soil Classification is CL or ML material with a Plasticity
Index (PI) of .10-20.•r
SITE DESCRIPTION: The site is a high bluff with a height of
approximately 28 feet. The land slope of the bluff is approximately
0.9 (horizontal) to 1 (vertical),. the toe of the bluff is being
eroded by wave action causing the bluff to become unstable. The
lakebed slope at the toe of the bluff is approximately 8 (horizontal)
to 1 (vertical).
LAKE LIDA WATER SURFACE ELEVATIONS:
the survey (12-2-97) was approximately elevation 1314.9.
The water surface at the time of
The recorded water levels from year 1986 to present indicate a maximum
high water level of elevatiob 1315.8 in year 1994 and a minimum low
water level of elevation 1313.7 in year 1996.
The ordinary high water (OHW) was determined by the Department of
Natural Resources to be at elevation 1314.3.
LAKESHORE PROTECTION: Rock riprap revetment will be placed at the toe
of the bluff to protect the toe from wave erosion. The desi^
parameters are as follows:
Hazard - high, the raw bank height is greater than 10 feet ■
3.39 miles from the SSWEffective Fetch
2
The still water elevation used for. design purposes was assumed to be
elevation 1315.7.
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Design Wave Height - 2.4 feet
Revetment Slope Ratio - 8 (horizontal) to 1 (vertical)
Wave Protection Height - 1.3 feet
;
The upper limit of riprap was determined to be at elevation 1317.0.
The lower limit of riprap was determined to be at elevation 1312.1.
The design lower limit of roc)c riprap is elevation 1312.5.
The median diameter (D50) roc)c size is 7 inches.
(DlOO) roc]c size is 14 inches,
inches.
The maximum diameter
The minimum diameter roclc size is 2
The rock riprap revetment thickness is 18 inches.;■
The bluff will be shaped to a 2 (horizontal) to 1 (vertical) slope to
make the slope more stable and allow vegetation to be established.
Approximately 4-8 feet vertically of bluff will be removed at the top
of the slope. This excavation will reduce the weight at the top of
the slope which will tend to make the slope more stable.
■;v
The area above the steep slope will drain away from the lake,
area above the rock:riprap revetment will be sodded.
The
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DateAl^Broyles,/^.E.
Conservation Engineer
• .*
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f
West Central Minnesota
Joint Powers Board
809 8th St. S.E.
Detroit Lakes, MN 56501
Telephone: (218) 846-7381
June 9, 1998
Rich Buckley
1412 4th Ave. E.
West Fargo, ND 58078 sV
The design for your lakeshore protection is based on the best
available technical knowledge, but it must be recognized that proper
operation and maintenance in also very important. As owner, you are
responsible for the operation and maintenance of this practice. Total
benefits can only be realized if you operate and maintain this
practice so that it will function for the designed purpose. It is
recommended that you inspect the practices at least annually,
particularly after major storm events and during, drought periods.
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The West Otter Tail Soil and Water Conservation District (SWCD) has
prepared the enclosed plan for operating and maintaining your
practice.
If you have any questions about the plan or notice unusual
circumstances occurring, contact the West Otter Tail SWCD for
assistance.
/
A1 Broyles,
Conservation Engineer
t( ■!
West Otter Tail SWCDc
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OPERATION-AND MAINTENANCE PLAN
LAKESHORE PROTECTION
ROCK RIPRAP
for
Rich Buckley
You, as owner, are, responsible for the operation and maintenance of
this lakeshore protection project.
Rock riprap is used to provide lakeshore protection against erosion by
wave action.Continued maintenance is essential to avoid future and
In planning for maintenance, it ispossible greater lakeshore damage.-
important to keep in mind that control measures, once installed, are
not automatically permanent. Since action by nature's forces on the
lakeshore vary considerably, proper maintenance of the installation is
necessary to prolong the usefulness of the protection.
Lakeshore protection may be disturbed by ice action or by waves larger
than those used in design. An unpredictable source of problems for
lakeshore protection measures is ice jacking. This phenomena involves
the freezing and thawing of the lake surface. When the ice expands in
freezing, it pushed up and outward against the shore of the lake with
very large pressure which can move almost any type of, protection
Flexible measures such as rock riprap can be pushed up and
These holes can
measure.
out of place leaving holes in the protective layer,
allow undermining of the protective layer and loss of its
effectiveness..
The following.guidelines,will help you maintain your lakeshore
protection.
Inspect the rock riprap at least annually on a regularly scheduled
basis and after spring "ice-out" and periods of high wave action.
Look for areas where rock riprap is missing or moved-and replace it.
Observe the toe of the rock riprap and. each end of the protection for
excessive erosion. Repair with rock riprap as necessary.
Check for excessive settlement, breaching, slides, and stable match
point between the top of the rock riprap and vegetation. Repair with
earth, vegetation or rock riprap as necessary.
i-IW
ion
I
WEST CENTRAL MINNESOTA
JOINT POWERS BOARD
CONSTRUCTION AND MATERIALS
SPECIFICATIONS
FOR
RICH BUCKLEYm-
■*;
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LAKESHORE PROTECTION
^ ' ■
SEC 15 T 136 N R 42 W
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WEST OTTER TAIL
SOIL AND WATER
CONSERVATION DISTRICT
■y
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•:
Rich Buckley
Lakeshore Protection
1
CONSTRUCTION SPECIFICATIONS
Clearing and Griibbing
Pollution Control
Excavation
Salvaging and Spreading Topsoil
Geotextile
Sodding
Rock Riprap
2.
5.n
21.
26 .■:
95 .
204 .
212 .
i..
MATERIAL-SPECIFICATIONS
Rock for Riprap •
Geotextile
300. .
592 .
: 7
I hereby certify that this plan, specification, or report was prepared:
by me or under my direct supervision and that I am a duly Registered
Professional Engineer under the laws of the State of Minnesota.
•V**
10077
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
June 8, 1998
CONSTRUCTION SPECIFICATION
2■ CLEARING AND GRUBBING
SCOPE1.■ a
The work shall consist of clearing and gruhbing and disposal of
trees, snags, logs, brush, stumps, shrubs and rubbish from the
excavation areas.
PROTECTION OF EXISTING-. VEGETATION2.
Trees and other vegetation designated to remain undisturbed shall
be protected from damage throughout the duration of the
construction period. Any damages resulting from, the Contractor's
operations or neglect shall be repaired by the Contractor.
i.
MARKING3 .
The limits of .the area(s) to be cleared and grubbed will be
marked by means'of stakes, flags, tree markings or other suitable
methods. Trees to be left standing.and iminjured will be
designated by special markings placed on the.trunk about six (6)
feet above the ground surface.
CLEARING AND GRUBBING4 .
All trees not marked for preservation and all snags, logs, brush,
stumps, shrubs, rubbish and similar materials shall be cleared ,
from within the limits'of the designated areas. All stumps,
roots and root clusters 'having a diameter of one (1) inch or
larger shall be grubbed out to a depth of at least one (1) foot
below the ground surface.
Blasting will not be allowed.
5. DISPOSAL
All materials cleared and grubbed from the designated areas shall-
be disposed of by burning, burying or removal from the site, as
approved by the landowner and the Engineer.
i
The Contractor is responsible for complying with all local rules
and regulations and the payment of any and all fees that may
result from disposal at locations away from the project site.
Buried material shall be' covered by a minimum of 2 feet of earth
after final grading.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
May 8, 19982-1
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Disposal areas shall be left in a condition to produce a free
draining natural appearance.1
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■'5.
WCMJPB
-West- Otter Tail SWCD
Buckley - Lakeshore Protection
2-2 May 8, 1998
CONSTRUCTION SPECIFICATION
5 ■ POLLtTTION CONTROL
SCOPE1.
The work shall consist of installing a silt fence along the
shoreline., of Lake Lida and performing work to control erosion and
minimize the production of sediment and other pollutants to water
and air during construction operations in accordance with these
specifications and as shown on the drawings.
MATERIALS2 .
Silt Fence
The silt,fence synthetic filter fabric shall be.a pervious sheet
of propylene, nylon, polyester or ethylene yarn, uniform in
texture and appearance and free from defects, flaws or tears that
would affect its physical properties.
The filter fabric should be furnished in a continuous roll cut to
the length of the silt fence to avoid splices. When splices are
necessary, ^the fabric .should be spliced at .a support post with a
minimum 6 inch overlap, folded over and securely fastened.
4-
The posts shall be spaced at 4 feet or less,
placed or driven at least 2 feet into the ground.
2 inch square or heavier wood posts or standard T- or U- section
steel posts weighing not less than 1.0 pound per lineal foot,
with a minimum, length of 3 0 inches plus burial depth.
Posts shall, be
Posts shall be
A trench for anchoring the fabric will be installed along the
upslope side of the posts.
.wide and 6 inches deep.
The trench will be about 6 inches
The fabric will be laid in the trench,
which is then backfilled with compacted soil.
: EROSION AND SEDIMENT CONTROL MEASURES AND WORKS3 .
The work and measures shall include but not be limited to the
following:•r
Silt Fence - The silt fence shall be installed along the
shoreline of Lake Lida. The silt fence shall be installed before
any construction activities commence and as shown on the
drawings.
I.WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
5-1 ,June 9, 1998,
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straw bales shall be placed in conjunctionstraw Bale Filters
with the silt fence' as shown on the drawings. The straw bales
shall be staked with 2 stakes per bale. Stakes shall be driven
at least 2 feet into the groiind. Stakes shall be 2 inch square
wood or metal posts.
Staging of-Earthwork Activities - The excavation and moving of
soil materials shall be scheduled so that the smallest possible
areas will be unprotected from erosion for the shortest time
feasible.
Sodding - Sodding, shall be done as specified in Construction
Specification 204, Sodding and as shown on the drawings.
AIR POLLUTION4 .
Local and state regulations concerning the burning of brush or
slash or disposal of other ,’materials., shall be followed.
Fire prevention measures shall be taken to prevent the start or
the spreading of fires which result from project work.
MAINTENANCE. REMOVAL AND RESTORATION5 .-
■ i
All pollution control measures and works shall be' adequately
maintained- in a functional condition as long as needed during the
construction 'operation. All temporary measures shall be removed
and the site restored to as nearly original conditions as
practicable.
. WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
June 9, 19985-2
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CONSTRTTCTION SPECIFTCATTON- :
21. EXCAVATION
SCOPE1.-4
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•The work shall consist of the excavation required to slope- and
shape the. site, install the rock riprap revetment and disposal of
the excavated materials.
Ingress and egress to the site shall be as directed by the
landowner.
2 . CLASSIFICATION V
■ Excavation will ,be classified as common excavation or rock
excavation in accordance with the following definitions.• /•;
Common excavation shall be defined as the excavation of all
materials that can be excavated, transported and iinloaded by the ,
use of heavy ripping equipment and wheel tractor-scrapers with
pusher tractors or that can be excavated and dumped into place or
loaded onto hauling equipment'by means of excavators having a
rated capacity of 1 cubic yard, or larger and•equipped with
attachments (such as-a shovel," bucket, backhoe,.’dragline or clam
shell) appropriate to the material type, character and nature, of
the materials.
"Rock excavation shall be defined as the excavation of all hard,
compacted or cemented materials that- requires blasting or the use
. of ripping and excavating equipment larger than defined for
common excavation. The excavation and removal of isolated
boulders or rock fragments larger than 1 cubic yard encountered
in materials otherwise conforming to the definition of common
excavation shall be classified as-rock excavation. The presence
of isolated boulders or rock fragments larger than 1 cubic yard
will not in itself be sufficient cause to change the
classification of the surrounding material.
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For the purpose of these classifications, the following
definitions.shall apply:
Heavy ripping- equipment shall be defined as a reair-mounted, hea'vy
duty, single-tooth, ripping attachment mo\mted on a track type
tractor having a power rating of at least 250 flywheel
horsepower.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore.Protection
May 8, 199821-1
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Wheel tractor-scraper, shall, be,, defined as a self-loading (not
elevating)' -and unloading scraper having a struck bowl capacity of
at least 12 cubic yards. ,
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Pusher tractor shall be defined as a track type tractor haying a
power rating of at least 250 flywheel horsepower equipped, with
appropriate attachments. .
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BLASTING3 .
Blasting will not be allowed. .
DISPOSAL OF WASTE MATERIALS .4 .
All surplus or excavated materials will be designated as waste
and shall be disposed of by the Contractor at sites of his own
choosing .away from the site .of; the work, in an environmental
acceptable manner and that does not violate local rules and
regulations...
5 . EXCAVATION LIMITS
Excavations shall comply with OSHA Construction Industry
Standards (29CFR Part 1926) Subpart P,. Excavations, Trenching and
Shoring. All, excavations shall be: completed and maintained ,in, a
safe and stable..condition throughout .the....total construction
phase. Excavations outside of- the lines and limits shown on the
drawings or specified herein required.to meet safety-requirements
shall be the - responsibility of the Contractor'in constructing and
maintaining a safe and stable ..excavation.
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6 . OVER-EXCAVATION
Excavation in earth.beyond the specified lines and grades shall
be corrected by.filling the: resulting-voids with approved
compacted earthfill, except, that, if the earth is .to become the
s.ubgrade for riprap, the voids may be filled with-material
conforming to the specifications, for the riprap. Prior to
correcting ah over-excavation condition, the Contractor shall
review, the-planned corrective action with the Engineer and obtain
approval of the corrective, measures.i-
The cost of imauthorized excavation and the backfill required to
replace.unauthorized-excavation shall be borne, by the Contractor.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
May 8, 199821-2
CONSTRUCTION SPECIFICATION
26. SALVAGING AND SPRRADING TOPSOIL
SCOPE1.
The work shall consist of salvaging topsoil from required
excavations within the work limits and spreading it td a minimum
depth of 4 inches on the disturbed areas as directed by the
Engineer.
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QUALITY OF TOPSOIT.2 .
Topsoil shall consist of friable surface soil reasonably free of
grass, roots, weeds, sticks, stones or other foreign materials.
The maximum size of rock fragments shall be 3 inches.
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EXCAVATION ,3 .
After the site has been cleared and grubbed, the topsoil shall be
removed from the designated areas and shall be stockpiled at
locations approved by the landowner and'the Engineer.■
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Objectionable materials encountered during excavations shall be
removed and buried at locations approved by the landowner and the
Engineer or otherwise removed from the construction site.
SPREADING4 .
Spreading shall not be done when the ground or topsoil is frozen,
excessively wet or otherwise in a condition detrimental to the
work.
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Surfaces designated to be covered shall be lightly scarified just-
prior to the spreading operation.
After placement is completed, the surface of the topsoil shall be
finished to a reasonably smooth surface.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
26-1 May 8, 1998
CONSTRUCTION SPECIFICATION •
95■ GEOTEXTILE
SCOPE1.
This work shall consist of ^furnishing all materialsequipment
and labor necessary for the installation of the geotextile,
geotextile shall be placedunder the rock riprap.
The
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QUALITY2 .
Geotextiles shall conform to the requirements of Materia,!
Specification 592 and this specification.
7
The geotextile shall be nonwoven.
STORAGE AND HANDLING
*Prior to use, the geotextile shall be stored in a clean dry
place, out of direct sunlight, not subject to extremes of either
hot or cold, and with the manufacturer's protective cover in
place. Geotextiles will be protected from damage during handling
at the jobsite.
SURFACE PREPARATION4 .
The surface on which the geotextile is to be placed shall be
graded to the neat lines and grades as shown on the drawings.
The surface shall be reasonably smooth and free of loose rock and
clods, holes, depressions and projections. The geotextile may be
placed underwater.
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PLACEMENT5 .
Prior to placement of the geotextile, the soil surface will be
inspected for quality assurance of design and construction. The
geotextile shall be placed on the approved prepared, surface at
the locations and in accordance with the details shown on the
drawings and specified. The geotextile shall be .unrolled along
the placement area and loosely laid (not stretched) in such a
manner that it will conform to the surface irregjilarities when
material is placed on or against it. The geotextile may be
folded,and overlapped to permit proper placement in the
desi^ated area.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection;
May 8, 199895-1
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The geotextile shall be joined by overlapping a minimum of 18
inches, and secured against" the'underlying foundation material.
The upstream or up-slope .geotextile shall overlap the abutting
down-slope geotextile.
PROJECT USE6.
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Slope Protection ■The geotextile shall not be placed until it can
be anchored and protected with- the specified covering within 48
hours or protected from exposure to ultraviolet light.In no
case shall material be- dropped on uncovered geotextile from a
height greater than 3 feet.
SECURING THE GEOTEXTILE7 .
The. geotextile shall be secured by: (a) pins approved and/or
, provided by the manufacturer, (b) by carefully placing small,
smooth rocks' or gravel materials, or (c) -other equivalent methods
that hold- the fabric in-place without damaging it.
If securing pins are used, the pins shall be steel or fiberglass
of "T".shape or contain "ears" to prevent
Steel washers shall be provided on all but
■ At' the vertical' laps, securing pins shall
formed as a "U",
total penetration,
the "U". shaped pins’,
be inserted through both layers along a line through
approximately the midpoint of. the overlap. At the horizontal
laps and across slope laps, securing pins shall be inserted
through the bottom layer only. Securing pins shall be. placed
along a line approximately 2'inches in from edge of the placed
geotextile at intervals not to exceed 12 feet. Additional pins
shall be installed as necessary and where appropriate, to prevent
any undue' slippage or movement of the geotextile. The use of
securing pins will be held to the minimum necessary. ’■ Pins may be
left in place.
"L"
8 .REPAIR OF DAMAGED GEOTEXTILE
Should' the geotextile be tom or punctured, or the overlaps
disturbed, as evidenced by visible geotextile damage, subgrade
pumping, intrusion, or grade distortion, the backfill"around the
damaged'or displaced area shair/be removed and restored to the
original approved condition. The repair shall consist of a patch
of the sameVtype of geotextile being used, overlaying the
existing”geotextile. Geotextile' panels joined by overlap shall
have the patch extend a minimum of 2 feet from the edge of any
damaged area.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
May 8, 199895-2
CONSTRUCTION SPEGIFICATION
V
.204. SODDING
SCOPE1.
The work shall consist of furnishing all labor, equipment and
materials for sodding the area above the rock riprap revetment as
shown on the drawings.
2 .FERTILIZER
The fertilizer shall be a regular commercial fertilizer
(including liquid form) meeting the requirements of the
‘ applicable state laws and shall be in such physical condition to
insure \miform application over the area to be fertilized.
The following amount of plant food shall be used:
RATE (LBS/ACRE)MATERIAL
Nitrogen (N)
Potash (K2O)
100
100
Incorporate 1/2 of the fertilizer into the soil during sod bed
preparation. Topdress.the second 1/2 of the fertilizer after the
sod is laid just prior to watering.•i
3 .SOD
Sod shall consist of densely rooted cultivated Kentucky bluegrass
free of excess thatch and undesirable pests including weed, other
grass species, diseases and insects.
Sod shall be from I" to 3. years old.’ Sod shall be machine cut at
a uniform, thickness 'of 1/2 to 1 inch excluding . top growth and
thatch and in strips a minimum of 12 inches wide and 48 inches
long. Edges shall be cut straight and smooth.
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Sod strips, shall not have dry or dead edges and shall be
.delivered to the site within 24 hour of cutting between June. 1
and September 15. During other periods, delivery may be extended
up to 48 hours.
.4^Sod shall be'sufficiently moist to withstand exposure and
handling during transplanting .operations. If not,' the sod shall
be watered before cutting. -Sod- shall be free of debris with .the
top growth trimmed to a height of approximately 2 inches.
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WCMJPB
West .Otter Tail SWCD
Buckley - Lakeshore Protection
204-1 June 8, 1998
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PREPARING THE SOD BED4 .
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The entire surface to be sodded shall.be reasonably smooth and
free from stones, roots or other debris and conform to the
alignments, grade and cross section indicated on the drawings.
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At this stage, the Contractor shall apply 1/2 of the fertilizer
and mix it with the surface soil material to a depth of 3 inches.
Prior to laying the sod, the area to be sodded will be dampened
if it is not already in a sufficiently moist condition.'
PLACING THE SOD5 .
Sod shall be carefully placed, tamped and anchored,
not be placed on frozen soil.
Sod shall
Lay strips of sod at right angles to the direction of slope
starting at the:lowest elevation and working up slope. Butt the
edges and ends of each strip firmly together, without stretching,
with,end joints staggered a^minimum of 12 inches.
Tamp and roll the sod to provide a firm contact between ;ro6ts and
soil.Shingle application of' sod will not be permitted.
Outside edges of sodded areas shall be rolled in or banked flush
with soil or other materials adjoining sod edges.
Extend sod strips 1-2 feet beyond the edges of the area'being
sodded every 8-10 feet to create a staggered effect on sites
where surface drainage may try to follow sodded edges..
;;
Anchor sod strips with 1/2 x 3/4. x 10.. inch wooden stakes driven
within 2 inches of the sod surface or use 11 gauge "U" shaped
wire staples with 8 inch length legs and a 1 inch crown,
minimum of 4 wooden stakes or 8 wire staples per square yard of
sod.
Place a
•i.
After tamping, rolling and pegging,the sod, apply the second 1/2
of the:fertilizer and water'thoroughly to set the sod pad and the
soil to a depth'of'4 inches. ■
S'
T,
ESTABLISHING THE SOD6 .
The Contractor shall maintain the sod in a growing condition by
watering when necessary, after completing, each part of the
sodding .work, for a period of 30 days, to keep the underlying soil
moist.
June 8, 199.8WCMJPB
West Otter Tail SWCD
Buckley - Lak'eshore Protection
204-2
. V
■5
: CONSTRUCTION SBECTF.TCATTONT
212 ■ rock’ riprap
SCOPE1.
The work shall consist of the construction of rock riprap
revetment.1 The rock riprap shall be placed to the lines, grades
and thickness as shown oh the drawings.
' ' I ' ’ '
MATERIALS2 .
Rock riprap shall conform to the requirements of Material
Specification 300. It shall be free from dirt, clay, sand, rock
fines and other materials not meeting the required gradation
limits...
At least 30 days prior to delivery of rock from other than
designated sources, the Contractor shall designate in writing'the
source from which he intends to obtain the rock and information
satisfactory to. the Engineer that; the material meets the
requirements of the specifications. The Contractor shall provide
the Engineer free accesS to the source for the purpiose of
obtaining samples,-.-for testing.
The rock riprap shall be reasonably well graded in size as
follows: '
Rock Size Percent Passing
14 inch
11 inch
7 inch
4 inch
2 inch
100
50 - 85
35 - 50
0 - '35
0:
SUBGRADE PREPARATION3 .
The existing lake bottom is on a slope of approximately 8
(horizontal) to 1 (vertical). The rock riprap, underlain by
geotextile, shall be placed on the existing lake bottom to the
lines, and grades as shown on the drawings.
;
EQUIPMENT^PLACED ROCK RIPRAP4.r •
The rock riprap shall be placed by equipment on the surfaces and
to the depths as - shown on the drawings.
WCMJPB
' West Otter Tail SWCD
Buckley - Lakeshore Protection
May 8, 1998212-1
i-'
i
The rock riprap shall be constructed to the full course thickness
in 1 operation and in such a manner as to avoid serious
displacement ofHthe underlying materials.
The rock ripra;p shall be placed beginning at the toe and
proceeding up the slope. The rock riprap shall be delivered and
placed in a manner that will insure that the riprap in place
shall be reasonably homogeneous with the larger rocks uniformly
distributed'and firmly in contact one to another with the smaller
rocks 'filling the voids between’ the larger rocks.
'■f.
i
.5 .HAND-PLACED ROCK RIPRAP
Sufficient rock riprap shall be placed by hand to insure a neat
uniform surface. It shall be securely bedded with the larger
rocks firmly in contact one to another. Spaces between the
larger rocks shall be filled with smaller rocks. Smaller rocks
shall not be grouped as a substitute for larger rock. Flat slab
rock shall be laid on edge.;
CONSTRUCTION DETATT.S6 .
Rock riprap shall riot be pushed or rolled over the geotextile.
A deepened and expanded toe shall be installed- at the ends of the
rock riprap above the water line.- The riprap thickness shall.be
increased from 18 inches to 36 inches for a length of 5 feet.
Geotextile shall be placed under the rock riprap.
■c •
■t-.
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
212-2 May 8, 1998
V
,v
MATERIAL SPECIFICATION .
300 ROCK FOR RIPRAP
1. . SCOPE.
This specifo-cation .covers the quality of rock to be used in the .
construction of rock riprap.-
2 . . QUALITY
Individual rock fragments shall be dense, sound and free from
cracks, seams and other defects conducive to accelerated
weathering. The rock.fragments shall be .angular to subrounded in
shape. The least dimension of an Individual,rock fragment shall
be not less than one-third the greatest dimension of the
fragment.
i
Bulk Specific Gravity (saturated surface-dry.basis):
less than 2.5 when tested in accordance.with ASTM-Method C
127 on samples prepared as described for soundness testing.
Nota.
Absorption: Not more than 2 percent when tested in
accordance with ASTM Method C 127 on samples prepared’as
described ,for soundness testing.
b.
c. ' Soundness:. The weight loss in 5 cycles shall be not-more
than .10 percent when sodium sulfate is .used or more than 15
percent'When magnesium sulfate is used'when tested in
accordance with ASTM Method- C 88 for coarse aggregate
modified.as follows:
The test sample shall consist of 5000 plus or minus 300
grams of rock fragments, reasonably uniform in size and
cubical in shape and weighing, after sawing, approximately
100 grams each. They shall.be obtained from rock samples
that representative of the total rock mass, as noted in ASTM
D 4992, and that have sawed into slabs as described in ASTM
D 5121. The samples shall further be reduced in size by
sawing the slabs into cubical blocks. The thickness of the
slabs and the size of the sawed fragments ,shall be
determined by the size of the available test apparatus and
as necessary to provide, after sawing, the approximate 100
gram samples.
300-1 5/95NRCS-Minnesota
WCMJPB
West Otter Tail SWCD.
Buckley - Lakeshore .Protection
ivp
Due to internal defects, some of the ciibes may break during
the sawing process or during the initial soaking period. Do
not test any of the cubes that break during these
preparatory processes-; Such breakage, including an
approximation of the percentage of CTobes that break, shall
be noted in the- report.
■ I ■
After the sample has been dried, following ‘completion of the
final test cycle and washed to remove the sodium sulfate or
magnesium sulfate, the'Moss of weight shall be determined by
s\ibtracting from the original weight of the sample the final
weight of all fragments which have not broken into three or
m'ore fragments .
The report shall show the percentage loss of the weight and
the results of the qualitative examination.
When specified, the rock shall also beRock Slab Soundness:
tested in accordance with'ASTM D 5240, Standard Test Method
d.
for Testing Rock Slabs to Evaluate Soundness of Riprap by
Use of Sodium Sulfate- or.Magnesium Sulfate,
otherwise, specified, the average percent weight loss shall
not exceed 20 percent when sodium sulfate is used' or 25
percent when magnesium sulfate is‘ used.
;Unless
Rock that fails to meet the requirements stared above in a, b, c,
or d (if specified) or is not tested, may be accepted only if
similar rock from the same source has been demonstrated to be
sound after 5 years or more of service■under conditions of
weather, wetting and’ drying, and erosive forces similar to those
anticipated fo'r the rock to be installed under this
specification.-
,
3 .ORAPTNCt ■
The rock shall conform 'to the specified grading limits after it
has been'placed in the riprap.
5/95NRCS-Minnesota
WCMJPB
West Otter Tail SWGD
Buckley - Lakeshore Protection
300-2
MATERIAL- SPECIFICATION
5 92. NQNWOVEN GEOTEXTILE •
SCOPE1 .1
This specification covers the quality of. the geotextile.
GENERAL REQUIREMENTS2 .
Fibers (threads, and yams) used in the manufacture of geotextile ,
shall consist of synthetic polymers composed of at least 85
percent,by weight polypropylenes, polyesters, polyamides,.
polyethylene, polyolefins or polyvinylidene-chlorides. They
shall be formed into a stable network of filaments or yarns
retaining dimensional stability relative to each other. The
geotextile shall be free of defects and conform to the physical
requirements . contained in Table 1.. The geotextile, shall be free
of any chemical treatment or coating that significantly .reduces
its-porosity.' Fibers shall contain stabilizers and/or inhibitors
to enhance resistance to ultraviolet light.
- •**
!
Thread used for factory or field sewing shall be of contrasting
color to the -fabric and made of high strength polypropylene,
polyester or polyamide -thread. Thread shall be as resistant to
ultraviolet light as the geotextile being sewn.
.3 .CLASSIFICATION .
:•
The geotextile shall be classified as nonwoven.I
Fabrics shall be formed by a random..placement of ■> threads in a mat
and bonded -by needle punching.
.Nonwoven fabrics shall be manufactured'from individual fibers,
formed into a randpm pattern with distinct but variable small
■ openings, .retaining their position relative to each other when
bonded by needle punching.
):
SAMPLING AND TESTING4 .
The gebtextile shall meet the specified requirements (Table 1)
for the product style shown on the label.
;
1/92 ,NRCS-Minnesota
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
592-1
.'i
i.
Product properties as listed in the "Specifiers Guide",
Geotechnical Fabrics Report. Industrial Fabrics Association
International,, 345 Cedar St., Suite 800, St. Paul, Minnesota
55101; and that represents minimum average roll values, will be
acceptable documentation that the product style meets the
requirements of these specifications.
; ■
For-products that do not appear in'-the above directory, or do not
have minimum average roll values listed, typical test date from
the identified production run of the geotextile will be required
for each of the specified tests.
V
TABLE 1
REQUIREMENTS FOR NQNWOVEN GEOTEXTILE
Test Method RequirementProperty
Tensile-Strength
(pounds)■(1)
180 minimumASTM,D 4632
Grab Test- 'i
Bursting Strength
(psi) (1)
ASTM D-3786
Diaphragm tester
320 minimum
Elongation at
Failure
(percent) (1)
50 minimumASTM D 4632
Grab Test
-.
80 minimumPuncture
(pounds) (1)
■ASTM D 4 833
Ultraviolet Light
(percent residual
tensile strength)
70 minimumASTM D 4355
150 hours
exposure
Apparent Opening
Size AOS;
As specified,
"maximum #40
U.S. standard
sieve size
ASTM D 4751
Permittivity
(sec*^)
0.70 minimumASTM D 4491
(1) Minimum average roll value (weakest principal direction)
;;
1/92NRCS-Minnesota
WCMJPB ■
West Otter Tail SWGD
’Buckley - Lakeshore Protection
592-2
I’
i'
SHIPPING AND STORAGE5.
The geotextile shall be shipped in rolls wrapped with a cover for
protection against moisture, dust, dirt, debris and ultraviolet
light. The cover shall be kept in place to the maximum extent
possible prior to'placement.
i:
Each roll of geotextile shall be labeled or tagged to clearly
identify the brand, Class and the individual production r\xn in
accordance with ASTM D 4873.
C3
NRCS-Minnesota
WCMJPB
West Otter Tail SWCD
Buckley - Lakeshore Protection
1/92592-3
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