HomeMy WebLinkAboutContract 58946Date Received: 2/28/2023
Time Received: 3:13 p.m.
Permit No.: SWFMA-23-0018
City Secretary No.: 58946
STORMWATER FACILITY
MAINTENANCE AGREEMENT
THIS AGREEMENT, made and entered into this day 1st of March, 20 23
by and between BYD TALON FP, LLC, acting by and through Shawn Goff, its duly
authorized Manager, hereinafter referred to as "Landowner", the Talon Hill Residential
Association, Inc., hereinafter referred to as "Association" and the City of Fort Worth,
hereinafter referred to as "City".
W 1TNESSETH
WHEREAS, the Landowner is the owner of certain real property described as a
tract of land situated in the D.C. Pace Survey, Abstract No. 1245 and G.S. Rall Survey,
Abstract No. 1985, in the City of Fort Worth, Tarrant County, Texas, described by deed to
BYD Talon FP, LLC, as recorded in Instrument No. D222084029, Deed Records, Tarrant
County, Texas, hereinafter called the "Property".
WHEREAS, the Landowner is proceeding to build on and develop the Property
according to the Site Plan/Subdivision Plan known as Talon Hill Phase IV hereinafter
called the "Plan", which is expressly made a part hereof, as approved or to be approved by
the City and the Landowner and Association provides for management of Stormwater
within the confines of the Property; and
WHEREAS, the City and the Landowner and Association, and their successors and
assigns, agree that the health, safety and welfare of the residents of the City of Fort Worth,
Texas require that on -site Stormwater Management Facilities be constructed and
maintained on a portion of the Property; and OFFICIAL RECORD
CITY SECRETARY
FT. WORTH, TX
STORMWATER FACILITY MAINTENANCE AGREEMENT
Rev. 03/01/2022 BN
WHEREAS, the City requires that on -site Stormwater Management Facilities
("Facility") as shown on the Plan be constructed and adequately maintained by the
Landowner, its successors and assigns, including Association, the location and dimensions
of which is shown and more particularly described by metes and bounds in the attached
Exhibit "A" ("Facility Property"); and
WHEREAS, Landowner agrees to convey the Facility Property to the Association
and the Association agrees to accept the Property where the Stormwater Facility is
located.
NOW, THEREFORE, in consideration of the foregoing premises, the mutual
covenants contained herein, and the following terms and conditions, the parties hereto
agree as follows:
1. The Landowner and Association, its successors and assigns, shall adequately
construct and maintain the on -site Stormwater Management Facility
("Facility") at no expense to the City of Fort Worth in accordance with the
design specifications for the Facility, attached as Exhibit "B", and the current
standards then in force and effect in the City of Fort Worth and with the
Operations and Maintenance Plan attached to this Agreement as Exhibit "C".
The Stormwater Facility includes all pipes, channels or other conveyances built
to convey stormwater to the facility, as well as all structures, improvements,
and vegetation provided to control the quantity and quality of the stormwater.
Adequate maintenance is herein defined as good working condition so that
these facilities are performing their design functions. The Stormwater
Structural Control Maintenance Checklists, attached to this Agreement as
Exhibit "D", are to be used to establish what good working condition is
acceptable to the City.
2. The Landowner and Association, its successors and assigns, shall inspect the
Facility and submit an inspection report to the City annually. The purpose of
the inspection is to assure safe and proper functioning of the Facility. The
STORMWATER FACILITY MAINTENANCE AGREEMENT 2
Rev. 03101l2022 BN
inspection shall cover the entire Facilities, berms, outlet structure, pond areas,
access roads, etc. Components of the Facility, which need maintenance or
replacement to perform their design function, shall be noted in the inspection
report along with the corrective actions to be taken.
3. The Landowner and Association, its successors and assigns, hereby grant
permission to the City, its authorized agents and employees, to enter upon the
Property and to inspect the Facility Property whenever the City deems
necessary. The purpose of inspection is to follow-up on reported deficiencies
and/or to respond to citizen complaints. The City shall provide the Landowner,
its successors and assigns, copies of the inspection findings and a directive to
commence with the repairs if necessary.
4. in the event the Landowner and the Association, its successors and assigns,
fails to maintain the Facility in good working condition as specified herein, the
City, its authorized agents and employees, may enter upon the Facility Property
and take whatever steps necessary to correct deficiencies identified in the
inspection report and to charge the costs of such repairs to the Landowner, its
successors and assigns. It is expressly understood and agreed that the City
is under no obligation to routinely maintain or repair said Facility, and in
no event shall this Agreement be construed to impose any such obligation
on the City, such obligation is Landowner's.
S. The Landowner and the Association, its successors and assigns, will perform
the work necessary to keep the Facility in good working order as appropriate.
In the event the City pursuant to this Agreement, performs work of any nature,
or expends any funds in performance of said work for labor, use of equipment,
supplies, materials, and the like, the Landowner, its successors and assigns,
shall reimburse the City upon demand, within thirty (30) days of receipt thereof
for all actual costs incurred by the City hereunder. in the event that Landowner
or its successors or assigns fail to pay the City for the costs incurred under this
section, the City shall impress a lien for the costs of such work upon other lots
owned by the Landowner or the Association. Such lien shall be perfected by
filing in the office of the County Clerk of Tarrant County, Texas an affidavit
STORMWATER FACILITY MAINTENANCE AGREEMENT 3
Rev. o3101l2022 BN
identifying the property to be charged with such lien, stating the amount
thereof, and making reference to this Agreement.
6. This Agreement imposes no liability of any kind whatsoever on the City. THE
LANDOWNER AND ASSOCIATION AGREES TO HOLD THE CITY
HARMLESS FROM ANY LIABILITY IN THE EVENT THE FACILITY
FAILS TO OPERATE PROPERLY. LANDOWNER AND
ASSOCIATION COVENANT AND AGREE AND DOES HEREBY
INDEMNIFY HOLD HARMLESS AND DEFEND THE CITY OF FORT
WORTH, ITS AGENTS, SERVANTS AND EMPLOYEES FROM AND
AGAINST ALL COSTS, EXPENSES, LOSSES, DAMAGES, CLAIMS
OR CAUSES OF ACTION WHATSOEVER ARISING, OR WHICH
MIGHT ARISE, FROM THE FAILURE OF LANDOWNER OR ANY
FUTURE OWNERS OF THE FACILITITY PROPERTY TO
MAINTAIN THE FACILITY, INCLUDING, BUT NOT LIMITED TO
THE BED AND BANKS OF THE DETENTION POND; ANY
DAMAGES CAUSED TO PERSON OR PROPERTY DUE TO (1)
FLOODING OF THE POND AND ITS BANKS, (2) SLOPE FAILURE
OF THE BANKS OF THE POND, OR (3) FAILURE OF THE POND OR
ITS BANKS TO OPERATE IN A MANNER CONSISTENT WITH CITY
OF FORT WORTH CRITERIA; OR FAILURE TO PERFORM ANY
OTHER DUTIES OR OBLIGATIONS HEREUNDER.
7. Landowner and Association covenants and agrees that no habitable building
shall be erected within the boundaries of the Property in which the Facility is
located as outlined on Exhibit "A" but this paragraph shall not preclude
construction of other improvements within the boundaries of the Property in
which the Facility is located, which do not impede drainage. Landowner and
Association covenants and agrees that no habitable building shall be erected on
the above property abutting such boundaries of the Property in which is
Facility is located, which shall have a finished floor at an elevation less than
two feet above the maximum depth of water in the detention pond which would
occur during a 100year frequency flood.
sTORMWATER FACILITY MAINTENANCE AGREEMENT 4
Rev. 03101/2022 BN
8. This Agreement shall be recorded among the land records of Tarrant County,
Texas, shall constitute a covenant running with the land, and shall be binding
on the Landowner, its administrators, executors, assigns, heirs and any other
successors in interests, including any property owners association.
9. Notwithstanding anything to the contrary contained or implied elsewhere
herein, it is expressly agreed and understood that the liabilities, indemnities and
obligations of BYD Talon FP, LLC as Landowner hereunder shall expire and
be of no further force or effect upon the transfer ("Transfer") by BYD Talon
FP, LLC to the Association of legal title to the Facility Property, save and
except for any liabilities, indemnities and obligations of BYD Talon FP, LLC
as Landowner hereunder which have accrued and are due, payable and/or
performable as of the date of the Transfer and which shall expressly survive the
Transfer.
[REMAINDER OF THIS PAGE TO REMAIN BLANK]
STORMWATER FACILITY MAINTENANCE AGREEMENT rj
Rev. o310112022 BN
Executed this 1st
day of March
CITY OF FORT WORTH
�`!Q �l�GILLA�Di�
Dana Burghdoff (Fe 27, 202 1 :44 CST)
Dana Burghdoff
Assistant City Manager
City of Fort Worth
Dat.: Feb 27, 2023
Approved as to Form and Legality:
Thomas Royce Hansen,
Assistant City Attorney II
City Attorney's Office
Date: Feb 27, 2023
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Jannette S. Goodall
City Secretary
Date: Feb 28, 2023
STORMWATER FACILITY MAINTENANCE AGREEMENT
Rev. 03/0112022 BN
20 23
LANDOWNER
BYD TALON FP, LLC
a Texas limited liability company
614
Shawn Goff
Manager
Date: 1-e � X- u U
ASSOCIATION
Talon Hill Residential Association, Inc.
a Texas N fii Corporation
Shawn Goff
Authorized Signer
Date: rv2�
Contract Compliance Manager:
By signing, I acknowledge that I am the
person responsible for the monitoring
and administration of this contract,
including ensuring all performance and
reporting requirements.
Rebecca Diane Owen (Feb 27, 2023 12:05 CST)
Rebecca Owen
Development Manager
Date:
Feb 27, 2023
OFFICIAL RECORD
CITY SECRETARY
FT. WORTH, TX
6
STATE OF TEXAS
COUNTY OF TARRANT
This instrument was acknowledged before me on February 27, 2023 by Dana
Burghdoff, Assistant City Manager of the City of Fort Worth, on behalf of the City of Fort
Worth.
O��FtYpUe/ BROOKE BONNELL
a Notary Public
* * STATE OF TEXAS
co Notary I.D. 134009525
OF
My Comm. Exp. Oct. 11, 2026
LANDOWNER:
STATE OF I e G
COUNTY OF 1QC r�r T�
Digitally signed by Brooke
Brooke Bonnell Bonnell
Date: 2023.02.27 15:54:05-06'00'
Notary Public, State of Texas
BEFORE ME, the undersigned authority, a Notary Public in and for the State of
YC on this day personally appeared__ 1(.,WII, i �1
(name), ^�Qr-\ (title), known to me to be the
person whose name is subscribed to the foregoing instrument, and acknowledged to me
that he/she executed the same for the purposes and consideration therein expressed, as the
act and deed of ��� _ ���� (entity), a
i� (entity type) and in the capacity therein
stated.
GIVEN UNDER MY HAND AND SEAL OF OFFICE this_ 1S� day
of - , 20')'2� ).
m
RALICAS6/26/237769-0
Notary Public, State of
STORMWATER FACILITY MAINTENANCE AGREEMENT 7
Rev. 03/01/2022 BN
ASSOCIATION:
STATE OF�Q- C-OL
COUNTY OF
This instrument w s ac owledged before me on
k-� , authorized representative, acting on behalf of the
la%� kk ;den-"-� sscmlettiorn , Ir Q- -
ARIANA HERRERA
.pt�YP✓$� NOTARY PUBLIC
STATE OF TEXAS
„�oF,� MY COMM. EXP. 06/26/23
NOTARY ID 12457769-0
Notary Public, State of l
STORMWATER FACILITY MAINTENANCE AGREEMENT
Rev. 0310112022 BN
EXHIBIT "A"
INSERT LEGAL DESCRIPTION
STORMWATER FACILITY MAINTENANCE AGREEMENT
Rev. 0310112022 BN
EXHIBIT "A"
REAL PROPERTY DESCRIPTION
OF A VARIABLE WIDTH PRIVATE DRAINAGE EASEMENT
BEING A TRACT OF LAND SITUATED IN D. C. PACE SURVEY, ABSTRACT NO. 1245, AND G.S. RALL
SURVEY, ABSTRACT NO. 1985, IN THE CITY OF FORT WORTH, TARRANT COUNTY, TEXAS, AND BEING A
PORTION OF THAT TRACT OF LAND CALLED THE REMAINDER OF 178.859 ACRE TRACT OF LAND DESCRIBED
BY DEED TO SYD TALON FP, LLC, AS RECORDED IN INSTRUMENT NUMBER D22208429, DEED RECORDS,
TARRANT COUNTY, TEXAS, AND BEING MORE PARTICULARLY DESCRIBED BY METES AND BOUNDS AS FOLLOWS;
COMMENCING AT A 1/2 INCH IRON WITH CAP STAMPED "PATE" FOUND FOR THE SOUTHWEST CORNER OF
LOT 4, AND SOUTH CORNER OF LOT 3, AND SOUTHEAST CORNER OF LOT 1, OF BLOCK B, THE RANCH AT
EAGLE MOUNTAIN, AS RECORDED IN CABINET A, SLIDE 12557, PLAT RECORDS, TARRANT COUNTY,
TEXAS, IN THE NORTH LINE OF SAID 178.859 ACRE TRACT;
THENCE SOUTH 83 DEGREES 54 MINUTES 13 SECONDS WEST, 50.57 FEET WITH THE SOUTH LINE OF SAID
BLOCK B, TO THE NORTHEAST CORNER OF HEREIN DESCRIBED TRACT AND POINT OF BEGINNING;
THENCE SOUTH 07 DEGREES 51 MINUTES 54 SECONDS EAST, 165.23 FEET TO A 5/8 INCH IRON WITH CAP
STAMPED "ANA" SET FOR CORNER;
THENCE SOUTH 50 DEGREES 15 MINUTES 14 SECONDS EAST, 173.13 FEET TO A 5/8 INCH IRON WITH CAP
STAMPED "ANA" SET FOR THE BEGINNING OF A CURVE TO THE LEFT;
THENCE 20.14 FEET WITH THE ARC OF SAID CURVE TO THE LEFT, THROUGH A CENTRAL ANGLE OF 23
DEGREES 04 MINUTES 39 SECONDS, WITH A RADIUS OF 50.00 FEET, A TANGENT LENGTH OF 10.21
FEET, A CHORD WHICH BEARS SOUTH 39 DEGREES 46 MINUTES 16 SECONDS WEST, 20.00 FEET TO A
CORNER;
THENCE NORTH 50 DEGREES 15 MINUTES 14 SECONDS WEST, 158.59 FEET;
THENCE SOUTH 82 DEGREES 08 MINUTES 06 SECONDS WEST, 15.02 FEET;
THENCE NORTH 07 DEGREES 51 MINUTES 54 SECONDS WEST, 130.08 FEET;
THENCE SOUTH 83 DEGREES 56 MINUTES 18 SECONDS WEST, 9.04 FEET;
THENCE NORTH 06 DEGREES 03 MINUTES 44 SECONDS WEST, 59.95 FEET;
THENCE NORTH 83 DEGREES 54 MINUTES 13 SECONDS EAST, 27.16 FEET TO THE POINT OF BEGINNING
AND CONTAINING 7,525 SQUARE FEET OF. 0.17 ACRES MORE OR LESS.
Note: Surveyed on the ground October 2022.Note: Bearings are relative to True North
obtained from Global Positioning Satellite System (CPS) Observations, North American
Datum 1983 (NAD '83), Texas State Plane Coordinate System, North Central Zone.
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Colleyville, TX 76034
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DATE: 10-20-22
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5000 Thompson Terrace
Colleyville, Texas 76034
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F.R-NO- 10090800
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Exhibit "C"
CITY OF FORT WORTH DRAINAGE CHANNEL
OPERATION AND MAINTENANCE PLAN
The only responsibility the City of Fort Worth has in the operation and
maintenance of this Facility is inspection.
General Maintenance Procedures
The structural and functional integrity of the Facility shall be maintained at all times by
removing and preventing drainage interference, obstructions, blockages, or other adverse
effects into, through, or out of the system.
Periodic silt removal shall occur when standing water conditions occur or the pond's
storage volume is reduced by more than 10%. Silt shall be removed and the pond/basin
returned to original lines and grades shown on the approved engineering plans. In
addition, corrective measures are required any time a basin does not drain completely
within 72 hours of cessation of inflow. NO STANDING WATER IS ALLOWED in
basins designed for dry detention purposes.
Accumulated litter, sediment, and debris shall be removed every 6 months or as necessary
to maintain proper operation of the basin. Disposal shall be in accordance with federal,
state and local regulations.
Detention facilities shall be mowed monthly between the months of April and October or
anytime vegetation exceeds 12-inches in height.
To prevent debris from entering and clogging the downstream storm sewer system a wire
mesh screen or similar screening device shall be installed over the outlet until final
acceptance.
4. PREVENTIVE MAINTENANCEIINSPECTION
• Visual inspections of all components will be conducted every 6 months.
• A log shall be kept of maintenance actions, and inspections. The log should
document the condition of the detention system's primary components, mowing,
and silt, litter and debris removal dates. Document aeration of the basin bottoms
and replanting to prevent the sealing of the basin bottom.
• Written maintenance and repair records shall be maintained by the party or
parties signing the attached Agreement and shall be provided to the City upon
request.
STORM WATER FACILITY MAINTENANCE AGREEMENT
Rev. 11/19/2020 JLE
LANDLOK® TURF REINFORCEMNET MAT
ANDLOK SLOPE INSTALLATION AND
MAINTENANCE GUIDELINES
Thank you for purchasing the LANDLOK® Turf Reinforcement Mat (TRM) by Propex Operating Company, LLC (Propex). This
document provides installation and maintenance guidelines for LANDLOK used as slope armoring to increase earthen slope
resiliency. LANDLOK provides permanent erasion protection on either the flood side and/ or protected side of an earthen slope.
Temporary securing pins (pins) are used during installation to hold LANDLOK in place. Pins also promote vegetation
establishment keeping LANDLOK in intimate contact with the soil.
LANDLOK is an engineered solution with a unique design for each specific project. While Propex has made every effort to
ensure general validity, this information should not be used for a specific application without independent professional
examination and verification of its suitability, applicability, and accuracy. The information provided herein is for general
information only, and is intended to present installation guidance. Project specific contract documents take precedence when
pin placements are different than what is represented in this document. Depending upon the critical nature of the structure to
be armored, work restrictions may be in place such as limiting work based on growing seasons, weather patterns, etc. Work
should be performed under the provisions set forth for the specific project. Propex Engineering Services is available for support
during installation to consult for solving constructability issues encountered in specific applications. Please feel free to call our
techincal support hotline at (423) 553-2450.
BEFORE INSTALLATION BEGINS
Coordinate with a Propex Representative: A pre -construction meeting is suggested with the construction team and a
representative from Propex. This meeting should be scheduled by the contractor with at least a two week notice.
• Gather the Tools Needed: Tools that you will need to install LANDLOK include a pair of industrial shears to cut LANDLOK,
tape measure, and mallet or hammer.
• Determine how to Establish Vegetation: The method of vegetation establishment should be determined prior to the start of
installation. Different vegetation establishment methods require different orders of installation. Refer to Establish
Vegetation for further guidance.
INSTALLATION OF LANDLOK ON SLOPES
PREPARE THE SITE
It is recommended during all stages of site preparation that disturbed soils remain unprotected for not more than a single day.
Depending on project size this may require progressive site preparation during installation.
1. Grade and compact the area on the slope where LANDLOK will be installed. The slope surface should be uniform and
smooth, having all rocks, clods, vegetation or other objects removed so that during LANDLOK Laydown, LANDLOK comes in
direct, intimate contact with the slope surface.
Prepare the area to be armored with LANDLOK by loosening the topsoil to promote better vegetation establishment. This
may be accomplished with a rotary tiller on slopes 3:1 or flatter. For slopes greater than 3:1, prepare topsoil in a safe
manner.
3. Excavate a Crest of Slope (COS) trench 12 in x 12 in (300 mm x 300 mm) minimum at a distance of 3 ft (900 mm) from the
crest of the slope. (Figure 1).
LANDLOK"
Page 2 of 11
COMPACTED BACKFILL
3' MIN
(900 mm)
(300mm)
LANDLOK 7RM
PIN ON 12" (300 mm) CENTERS -1 I I -III- I-
DISTURBED REASD ALL -
Figure 1: Crest of Slope (COS) Trench
4. Excavate a Toe of Slope JOS) trench 12 in x 12 in (300 mm x 300 mm) minimum at a minimum distance of 5 ft (1.5 m)
from the toe of the slope. (Figure 2)
5. If seeding, refer to Vegetation Establishment for additional considerations during site preparation.
LANDLOK TRM f
BREAK IN SLOPE INTERFACE
COMPACTED BACKFILL , I'
I
(300 MM)
5
PIN ON 12" - (1.5 m) M!NI-
(300 mm) CENTERS
Figure 2: Toe of Slope JOS) Trench
LANDLOK LAYDOWN
1. Begin the LANDLOK laydown process by starting with the downstream / downwind end of the site. To ensure proper pining
of the overlapped areas the proceeding roll width must be laid out before the current roll width can be pinned with
exception to the final roll width. For straight sections of a slope, LANDLOK panel lengths should be long enough to construct
COS and TOS trenches while also covering the surface of the slope being armored (Figure 12). Panel edges should rest
approximately perpendicular to the slope center line. For best results, panels of LANDLOK should be continuous and free
from seams or roll end overlaps that are parallel to the centerline of the slope. Panel edge overlapping should follow a
pattern of placing each proceeding panel's edge overtop the previous panel edge, shingling the panels in the direction of
the water flow or prevailing wind.
LANDLOK'
Page 3 of 11
2. Starting at the COS trench, lay LANDLOK roll so that the roll ends point towards the crest of the slope (Figure 3), with a 3
inch (75 mm) overlap created at adjacent panel edge locations. Ensure that adjacent panel edges maintain a minimum 3
inch overlap during LANDLOK laydown. (Figure 8)
LANDLOKTRM
a+ I
�— ..I...
TOS TRENCH
III I . -_ _
l��'�' - I-�-�-1�I IIIIIIIIIIII_IIIIIIII� i-III _III��
LI�I
IH I_ I I
Figure 3: Crest of Slope (COS) Trench Alignment
3. Secure LANDLOK with pins in the COS trench. Pins should
be made of steel with a 0.20 in (5 mm) minimum diameter,
having a 1.5 in (38mm) diameter washer at the head, and a
length between 12 and 24 in (300-600 mm) with sufficient
ground penetration to resist pullout (Figure 4). Longer pins
may be required for looser soils. Heaver metal stakes may
be required in rocky soils. Suggested placement of pins for
the COS trench is along the bottom of the trench with pins
on 12 in (300 mm) centers. Pins should also be installed
on panel edge overlaps in the COS trench.
COS TRENCH
1.5" (38 mm) DIAMETER
STEEL WASHER
0.20" (5 mm)
DIAMETER STEEL
12 - 24"
L_ -
Figure 4: Securing Pin
4. Backfill and compact the COS trench in the location of the first LANDLOK panel only (Figure 5).
LANDLOK TRM
COS TRENCH
TOS TRENCH
III I�III III _
I-
'-tI!-,I�i--I
Figure 5: Crest of Slope (COS) Trench Placement
LANDLOK'
Page 4 of 11
5. Unroll the LANDLOK roll on the slope surface in the area to be armored (Figure 6). Ensure that LANDLOK has intimate
contact with the ground and all irregular surfaces beneath LANDLOK are removed.
UWDLOK TRM
TOSTRENCH
1 I I _I --I I
�-
Figure 6: Placement of LANDLOK across Slope
COS TRENCH
6. Secure LANDLOK panels in place using pins across the slope surface according to the project's engineered design. Pin
placement should reflect a staggered checkerboard pattern across the slope surface for best results (Figure 7 and Figure
8).
• The leading edge of the first LANDLOK panel should be secured on the Slope Armoring Edge (SAE) with pins on 12 in
(300 mm) centers.
• Roll edges shall be overlapped a minimum of 3 in (75 mm) with pins placed on 12 in (300 mm) centers (Figure 8).
• Roll ends shall be overlapped a minimum of 6 in (150 mm) with upstream / upwind panel on top. Secure roll end
overlaps with two rows of pins staggered 6 in (150 mm) apart on 12 in (300 mm) centers ( Figure 9)
• For slope lengths greater than 45 ft (13.7 m), install simulated check slots. This method includes placing two rows of
pins 12 in (300 mm) apart on 12 in (300 mm) centers at 45 ft (13.7 m) maximum intervals or across the midpoint of
the slope for slope lengths less than 60 ft (18.2 m) (Figure 10).
At the break in slope interface towards the TOS, it is suggested that pins be installed on 4 ft (1.2 m) centers (Figure 11).
M
LVAVAVAVATAC
LANDLOK® TRM,
SEE NOTE 1
-7
VERTICAL PIN SPACING
PER PIN SCHEDULE
PIN, SEE
DETAIL 6
HORIZONTAL PIN SPACING
PER PIN SCHEDULE
Figure 7: Example Pin Pattern
3777
LAN 0 LO K"
FLOW OF WATER OR
N TYPICAL DIRECTION OF PREVAILING WIND
(1 2 m)
PINS ON 12" CENTERS ON
3" OVERLAP MIN ROLL EDGE OVERLAPS
(75 mm)
5TYPICAL
(1.5 m )
I
- l
j
OFFSET PINS AS SHOWN TO
CREATE A CHECKERBOARD PATTERN PIN
Figure 8: Example of Panel Overlap
LAN DLOK TRM
FLOW OF WATER OR
DIRECTION OF
PREVAILING WIND
TOP OF SLOPE I UP STREAM
■rrlrr■
o■ uu■!!uu!■
■rfuuruunuu■u■u■
1' MAX
(300 mm)
6" MIN
(150 MM)
ROLL EDGE
BOTTOM OF SLOPE I DOWN STREAM
OVERLAPPING END
n
• PIN
Figure 9: Roll End Overlap
Page 5 of 11
LANDLOK"
Page 6 of 11
LANDLOKTRM 45' MAX OR NEAR MIDPOINT OF SLOPE
i 1 (13.5 m)
PIN
I'MAX
(300 mm)
Figure 10: Simulated Check Slat
LANDLOK TRM
-1I-= II�iI
-III- - PIN ON (300 mm) CENTERS
I I II ill--i'
Figure 11: Break in Slope Interface
7. Secure LANDLOK with pins in the TOS trench. Suggested placement of pins for the TOS trench is along the bottom of the
trench with pins on 12 in (300 mm) centers (Figure 12).
LANDLOK'
COS TRENCH
TOS TRENCH _
-- IIIII I C I TI I I I' I�
IIII�P, III�I I IIIIIIIiIIIIIII'-,;
I L_ -_ II I Ilu
II E_ i�i
Figure 12: Crest of Slope (COS) Trench and Toe of Slope (TOS) Trench Complete
8. Backf ill and compact the TOS trench. (Figure 12)
Page 7 of 11
9. Continue to work down the length of the slope by repeating steps 1 through 8 overlapping each adjacent LANDLOK panel by
3 inches (75 mm) (Figure 8). The last LANDLOK panel should terminate on the Slope Armoring Edge (SAE) with pins on 12 in
(300 mm) centers. At a minimum, LANDLOK panels should be pinned entirely across the slope surface, pins should be
installed in the trenches, and the trenches should be backfilled and compacted at the end of each day to minimize rework
in the case of a major rain event. Specific project conditions may warrant further evaluation of installation order for ease.
An example isometric view (Figure 13) of a slope armored with LANDLOK can be seen below for overall reference. Consult
Propex Engineering Services at (423) 553-2450 with any questions that you may have.
Y OVERLAP MIN FI,O W OF WATER OR
CREST Of SLOPE(CCS1 TRENCH STS mm} DIRECTION OF PREVAILING WIND
COMPACTED RACKFILL
PIN • _ _ `_
OVERLAP AT
ROLL EDGE
LANDLOK 7RM
COMPACTED SACKFILL' +
TOE OF SLOPE fT0$} TRENCH
.tom
NOTE ALL PINS ARE NOT SHOWN
FOR THE PURPOSE OF CLARITY
I�i'MIN
{i5ml
Figure 1.3: Completed Slope Isometric Yew
LANDLOK'
ESTABLISH VEGETATION
Page 8 of 11
Vegetation can be established with LANDLOK by broadcast seeding, hydraulic seed application (hydroseeding), or sodding. Seed
application rate, seed type, sod type, and irrigation rate should be selected based on local or site specific knowledge and time of
year. For best results, consider having a site specific soil test performed to help determine what soil amendments, such as lime
and fertilizer, need to be incorporated into the soil to promote healthy vegetation.
Irrigate as necessary to establish and maintain vegetation until 75% of vegetation has established and has reached a height of
2 inches. Frequent, light irrigation will need to be applied to seeded areas if natural rain events have not occurred within two
weeks of seeding. When watering seeded areas, use a fine spray to prevent erosion of seeds or soil. Do not over irrigate. Proper
irrigation guidance is provided under the Maintenance portion of this document.
CONSIDER PROJECT SPECIFIC NEEDS
1. A deeper terminal trench and/or hard armoring may be required when slopes have severe scour potential at the toe
location.
2. For installing LANDLOK panels around curved sections of a slope, trim panels at an angle so that no more than two layers of
LANDLOK overlap at any point in time. Additional pins may be needed to secure panel edges towards the toe of the slope
depending upon the radius of the curved slope. Install pins as necessary to securely fasten LANDLOK to the ground.
3. Vehicular traffic should not be allowed on LANDLOK at any time.
4. Disturbed areas should be reseeded. If ruts or depressions develop for any reason, rework soil until smooth and reseed
such areas.
SHORT-TERM AND LONG-TERM MAINTENANCE OF LANDLOK
The purpose of this section is to provide some general guidelines for performing short-term and long-term maintenance of
LANDLOK with respect to maintaining vegetation reinforced with LANDLOK, and patching of LANDLOK (in the event it needs to
be removed or replaced). These procedures are to be considered minimum guidelines for proper maintenance, and further
maintenance techniques may be appropriate considering local practices and procedures.
LANDLOK PROTECTED SLOPES
For LANDLOK to be most effective, it is important to ensure that it is properly maintained both during construction and after
construction. Identifying trouble areas is easy with LANDLOK, and it can make identifying potential threats much simpler and
manageable. Look for areas with sparse, dying, or no vegetation as these are obvious signs that LANDLOK is losing intimate
contact with the slope surface. If loss of ground surface occurs, LANDLOK will need to be removed and reinstalled as described
in Patching and Repairs Section after the eroded area is backfilled with compacted soil that is similar to material of the slope.
After LANDLOK is reinstalled, re-establish vegetation on the newly installed LANDLOK and disturbed areas. Monitor the sites to
determine if frequent watering may be required to establish vegetation.
To minimize exposure to unwanted maintenance and repair, LANDLOK armored slopes should be free of vehicular traffic.
Routine maintenance and slope inspections should be performed by foot traffic only. Tracked equipment such as skid steers,
excavators, or dozers should only be allowed to traffic over LANDLOK in times of emergency after vegetation establishment is
complete. Failure to control unauthorized traffic can result in LANDLOK being damaged resulting in erosion below LANDLOK
during storm events.
MAINTAINING VEGETATION
Good vegetative cover will ensure maximum performance of LANDLOK. Vegetative cover care starts before a project is complete
and is ongoing until all LANDLOK is installed. Vegetative cover should be given every opportunity to grow and establish well.
LANDLOK"
Page 9 of 11
This will require that a contractor periodically fertilize and water the grasses as needed until a project is complete in the short-
term, with the owner of the slope fulfilling the maintenance of the slope in a similar fashion for the long-term. For the entire
lifecycle of LANDLOK, every effort must be made to prevent unauthorized encroachments, grazing, vehicle traffic, the misuse of
chemicals, or burning during inappropriate seasons.
1. After the installation of vegetation is complete, immediately water and soak the entire area using a fine spray to prevent
erosion and loss of seeds. A suggested amount of water is identified below. Prior to installation if using sod, the sod pads in
storage should be kept moist at all times and not stored for more than 24 hours from site arrival to installation. Warmer
weather will necessitate more frequent applications than listed below.
A. For each reach/segment of installed vegetation, watering shall be conducted immediately after each installation or the
day's work.
B. For initial vegetation establishment, water vegetation in a manner consistent with best practices for vegetation type
and location.
C. Establish a watering schedule and follow until vegetation is well established and will thrive in the absence of manual
watering.
D. Avoid excessive application of water, so that surface runoff does not occur. Runoff should be prohibited. However,
additional watering may be required for repaired or damaged areas.
2. Fertilizer should be applied as needed to address any nutrient deficiencies revealed in soil testing.
3. Mowing over LANDLOK is not permitted at anytime.
PATCHING AND REPAIRS
LANDLOK may require localized repair at times. For emergency repairs, an adequate supply of LANDLOK should be maintained
in inventory with the necessary tools to install. This will allow for a timely, initial repair of the system.
1. In order to identify areas in need of repair, the site should be patrolled immediately after rain events of 2 inches or more.
When patrolling look for areas of sparse vegetation, exposed edges of LANDLOK, and areas where direct contact between
LANDLOK and the slope surface is compromised. LANDLOK should be rated as Acceptable, Minimally Acceptable, or
Unacceptable during inspection.
A. Acceptable (A) - The rated area is in satisfactory, acceptable condition, and will function as designed and intended
during the rain event. LANDLOK has no exposed edges, is installed tightly by maintaining direct contact to the slope
surface with no rilling beneath, and has over 90%vegetation cover. There is no noticeable damage present.
B. Minimally Acceptable (M) - The rated area has a minor deficiency that needs to be corrected. The minor deficiency will
not seriously impair the functioning of the area during the next rain event; however, the overall reliability of the project
will be lowered because of the minor deficiency. LANDLOK has 75% vegetation cover with un-vegetated patches as
large as one square yard. Edges of LANDLOK are exposed with noticeable damage. Minimal erosion has occurred
underneath LANDLOK.
C. Unacceptable (U) - The rated area is unsatisfactory. The deficiency is so serious that the area will not adequately
function in the next rain event. LANDLOK has been physically torn, ripped, or lifted from the slope surface. Less than
75% vegetation cover is present with un-vegetated patches being greater than 1 square yard, and there is evidence
that erosion is occurring beneath LANDLOK.
2. Repair any raised or exposed edges of LANDLOK by driving existing and additional pins along the edges as necessary to
securely fasten to the ground. Inspect areas where the vegetation is not growing on top of LANDLOK. Many times this is an
indicator that LANDLOK has lost contact with the ground beneath. Check for voids beneath LANDLOK and fill any holes,
gullies, etc. with compacted fill material if possible. Replace LANDLOK as described below.
srating.Campany LLC - 4019 Industry Drive, Chattanooga, TN 3741 8 t _y
LANDLOKO Page 10 of 11
3. To repair LANDLOK, cut out and remove damaged areas in a square configuration a minimum size of 2 ft by 2 ft. Remove all
vegetation and debris atop of LANDLOK. Loosen the top 1 to 2 in of soil in the patch area then seed. The subgrade of area
to be patched shall be prepared to be smooth and uniform and transition smoothly into the in -situ area. Cut a square
LANDLOK patch a minimum of 12 in greater than the damaged area for all four sides of the patch. Overlap the patch area
in all directions a minimum of 12 in. The patch overlaps shall be tucked under the existing damaged LANDLOK material
(Figure 14 and Figure 15)
FLOW
12' MINIMUM
B'MINIMUM
12" MINIMUM
fi"MINIMUM
2' MINIMUM
GIN
LANDLOK TRM PATCH PIN
EXISTING LMDLOK TRM
Figure 14: LANDLOK Patch Cross Section
IN
TERONICEN
� CENTER ON CENTER/
i
B IN MAXIMUM' 12" MINIMUM
CENTER ONCENTER _ T 1'�•
AREAOF-
DAMAGED TRM 2' MINIMUM 12" MINIMUM
• PIN
Figure 15: LANDLOK Patch Plan View
4. Install pins on 6 in (150 mm) (max) centers. For larger areas of damage, pins should be installed to match existing pin
pattern. Once LANDLOK is in place, vegetate per project specifications.
SUMMARY
Maintenance should consist of watering and weeding, repair of all erosion, and any re -seeding as necessary to establish a
uniform stand of vegetation during construction and beyond. A minimum of 70% of the armored area should be covered with no
bare or dead spots greater than 10 ft2 (1 m2). Throughout the duration of the project, the Contractor should water all grassed
areas as often as necessary to establish satisfactory growth and to maintain its growth throughout the duration of the project.
LANOLOKO
Page 11 of 11
After the project is complete, it is the responsibility of the Owner to maintain and upkeep all LANDLOK installed areas for long
term performance and best results as described herein for superior slope armoring.
Exhibit "D"
Stormwater Structural Maintenance CHECKLIST
FREQUENT
INSPECTION
DATE
REPAIRS
REQUIRED
REPAIRS
MADE
NOTES
Mowing
Remove Trash and
debris
Inspect irrigation
system operation
Remove grass
clippings
Violations Noted
MINOR
INSPECTION
Condition of Pond
Amount of silt in
and
Amount of silt in
flume
Amount of ponded
water
Amount of wetland
vegetation
Location of Erosion
Percent of vegetation
Condition of trash
guard
Location of Erosion
MAJOR
INSPECTIONS
Condition of
Stormwater Quality
Structure
Type of Stormwater
Quality Structure
Structure type and
Condition
Condition of Rip -Rap
Condition of filtration
system
STORMWATER FACILITY MAINTENANCE AGREEMENT
Rev. 03/0112022 BN
Berm or Embankment
Settlement
Location of erosion
Evidence of Animals
Evidence of Aquatic
life
Condition of Aeration
Foundation
STORMWATER FACILITY MAINTENANCE AGREEMENT 12
Rev. 03101/2022 BN