Dale Hollow Supply Contract Scope of Work (RTA).pdf

Dale Hollow Dam Slope Remediation Drainage and Stability

Supply Statement of Work

This project is a supply contract for the purchase of materials to provide stability for the slope adjacent to Dale Hollow Dam. The contractor must deliver all items listed in this statement of work no later than 45 calendar days after award. The contractor must allow USACE the required submittal review period, as stated in the “Submittal Requirements” Section of this document , and must account for that in their anticipated delivery schedule. USACE will not be responsible for delays or breaches of the period of performance if the contractor submits a material for approval and the review period overlaps into the required delivery due date.

Background In the Summer of 2024, a slope stabilization project was conducted along the dam embankment to address observed slope failures. The project will continue work this coming Summer/Fall, as a follow-on effort, and will utilize a USACE labor team to conduct the final construction requirements. Prior to the USACE labor teams estimated mobilization, USACE will award this supply contract for any necessary materials for conducting the proposed work. Prior to material delivery via this statement of work, USACE will have a prepared laydown area consisting of an approximate 50’ by 100’ gravel pad on site for materials to be delivered, stored, and stockpiled. See Figure 1. for approximate locations.

Location The project site is at Dale Hollow Dam (shown in Figure 1) and is located at the nearest street address of 305 Powerhouse Rd, Celina, TN 38551. The address will take you to the Dale Hollow Powerhouse, just before on powerhouse road (and circled approximately in red below) there is a ‘pull-off’ and a prepared laydown yard for the materials to be procured and delivered for this contract. All materials are to be delivered and placed on the prepared gravel pad (laydown area), unless otherwise approved by the delivery coordinator listed below (Coy Bryant).

Figure 1. Dale Hollow Dam Project Features

Scope of Work The contractor shall supply and deliver, in accordance with the instructions stated herein, the listed materials and quantities shown in the bidding schedule and summarized in Table 1. All pricing shall be itemized on the individual line item. The price for the materials shall include all applicable taxes and fees to include freight costs with an approximate delivery date. Contractor must submit the required submittals for USACE approval, as summarized in Table 1 and in accordance with the material/product specifications listed below.

Submittal Requirements Prior to purchase, the contractor must submit for USACE approval the requested submittal data indicated below in Table 1 for each item to be procured. Submittal review will be conducted through email. USACE will have a submittal review period of either 7 or 14 calendar days as assigned to each requested submittal (see Table 1.). Submittal review period will start upon the date of receival. Contractor must account for the required USACE review period in their delivery schedules in accordance with the requirement of having all items delivered within 45 calendar days after award, USACE will not be responsible for delays or breaches of the period of performance if the contractor submits a material for approval and the review period overlaps into the required delivery due date. Contractor is required to do their diligence and identify any potential items with long lead times and submit the corresponding submittals within 10 days of contract award.

Submittal approval must be documented in writing (via email to the below contacts), verbal acceptance will not be considered as final approval. Contractor should submit, and receive approval of, the required submittal documents to the Technical Point of Contact (TPOC) (Jake Pierce) and include the Contracting Specialist (Andrew Roth) on all correspondence prior to purchasing.

Sustainability The contractor shall meet the recycled content requirements set forth by EPA:

https://www.epa.gov/smm/comprehensive-procurement-guideline-cpg-program

Delivery The supplier shall be responsible for shipping and delivery of the above listed materials and components to the slope adjacent to the identified laydown area at Dale Hollow Dam located in Celina, Tennessee. The delivery of the materials listed herein shall start after the issuance of an approved purchase order/contract that has been received and signed by the vendor. Final delivery shall be by the completion date which is 45 days after contract award. The delivery of the materials shall not be accepted during inclement weather conditions or Federal Holidays (5/26/25, 6/19/25, 7/4/25, 9/1/25) unless otherwise approved by the delivery coordinator (Coy Bryant). Delivery dates are subject to be cancelled by the Government if warranted. The contractor shall be required to contact the delivery coordination contact (Coy Bryant) to schedule delivery date. The Contractor shall be required to be registered in the System for Award Management (SAM) and shall provide a Unique Entity Identification (UEI) number. For additional information or clarification on deliveries herein please contact Coy Bryant (931) 243-3138 Monday through Friday 7:00 am to 3:30 pm.

Materials must be delivered free of defects (such as scratches, dents, etc.). If not delivered free of defects, this will be cause for rejection.

Deliveries are accepted Monday thru Friday from 8 a.m. till 3 p.m. Must call Coy Bryant 24 hours prior to schedule delivery.

Delivery Coordination:

Coy Bryant Coy.T.Bryant@usace.army.mil Phone Number: 865-235-5014

Additional Points of Contact Program Manager: Alex Bohlin Phone: 615-736-7965 Email: Alexander.G.Bohlin@usace.army.mil

Technical Point of Contact:

Jake Pierce Phone: 615-736-7554 Email: Jake.P.Pierce@usace.army.mil

Contracting Officer:

Bridget Passatore Phone: 615-736- Email: bridget.l.passatore@usace.army.mil http://www.epa.gov/smm/comprehensive-procurement-guideline-cpg-program mailto:Coy.T.Bryant@usace.army.mil mailto:Alexander.G.Bohlin@usace.army.mil mailto:Jake.P.Pierce@usace.army.mil mailto:bridget.l.passatore@usace.army.mil

Contracting Specialist:

Andrew R. Roth Phone: 615-736- Email: Andrew.R.Roth@usace.army.mil

Invoice Instructions Payments will be made upon submission of all invoices and once all materials/items have been delivered and accepted. Invoice shall include sufficient narrative to ensure that USACE can reconcile the payment request. Submittals listed as ‘closeout’ will be required to accompany the corresponding item invoices for proof of quantity when noted. Original invoices shall be submitted to the Program Manager (Alex Bohlin) and a duplicated copy of all invoices shall be submitted to the Contracting Specialist (Andrew Roth).

Material Specifications The following material specifications need to be met, and submitted for approval prior to purchase and delivery, for the required items within this contract. See Table 1, below for the summarized submittal list for each item, utilize the supporting specifications for each corresponding item to find the detailed product requirements.

mailto:Andrew.R.Roth@usace.army.mil

Table 1. Quantities Summary and Submittal Register

1. QUARRY 14 DAYS

2. GRADATION DATA 7 DAYS

3. WEIGHT TICKETS CLOSE OUT

1. QUARRY 14 DAYS

2. GRADATION DATA 7 DAYS

3. WEIGHT TICKETS CLOSE OUT

1. PRODUCT DATA 7 DAYS

1. PRODUCT DATA 7 DAYS

1. PRODUCT DATA 7 DAYS

2. MANUFACTURER'S

RECOMMENDATIONS 7 DAYS

1. PRODUCT DATA 7 DAYS

1. PRODUCT DATA 7 DAYS

1. PRODUCT DATA 7 DAYS

- - SEE PAGE 21 FOR DETAILS

- - SEE PAGE 21 FOR DETAILS

1009 PERMANENT GRASS SEED 1 ACRE - -

- - SEE PAGE 20 FOR DETAILS

1008 EROSION CONTROL BLANKETS 810 SY - -

- - SEE PAGE 20 FOR DETAILS

1007 STRAW WATTLES 80 LF - -

1006 SILT FENCING 150 LF - -

- - SEE PAGE 18 FOR DETAILS

- - SEE PAGE 18 FOR DETAILS

- - SEE PAGE 13 FOR DETAILS

1005 GABION BASKETS

50 EACH - -

- - SEE PAGE 10 FOR DETAILS

1004 GEOGRID 80 SY - -

1003 GEOTEXTILE (TYPE III) 560.00 SY - -

SEE PAGE 7 FOR DETAILS

- - SEE PAGE 7 FOR DETAILS

- - SEE PAGE 7 FOR DETAILS

SEE PAGE 7 FOR DETAILS

1002 #57 CRUSHED STONE

25.00 TONS - - -

- - SEE PAGE 7 FOR DETAILS

- - SEE PAGE 7 FOR DETAILS

1001 TDOT CLASS A-1 RIPRAP

280.00 TONS - -

QUANTITIES SUMMARY & SUBMITTAL REGISTER

ITEM

NO. MATERIAL QUANTITIY UNITS SUBMITTAL

USACE

REVIEW

PERIOD NOTES

(ITEM NO. 1001) TDOT CLASS A-1 RIPRAP & (ITEM NO. 1002) #57 CRUSHED STONE

GENERAL

Contractor is to procure and deliver Tennessee Department of Transportation (TDOT) Class A-1 machined riprap and #57 clean and washed crushed stone from a TDOT approved quarry. Material requirements should be in accordance with TDOT Std Specs sections 709 and 903.

REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

TENNESSEE DEPARTMENT OF TRANSPORTATION (TDOT)

TDOT Std Specs (2021) Standard Specifications for Road and Bridge Construction, including subsequent Supplementals to date

Standard Specifications (TDOT Std Specs) All materials, shall be in accordance with the applicable portions of TDOT Std Specs, except as otherwise specified. The words listed below are to be substituted in TDOT Std Specs by the words indicated:

Department to Corps of Engineers Bureau to Corps of Engineers

SUBMITTALS

Contractor is to first submit for approval the selected quarry that would be used for sourcing and delivering both the machined riprap and #57 crushed stone. Contractor is encouraged to confirm lead times for both products to mitigate risks of missing the delivery due date. Upon receiving approval of the submitted quarry, Contractor is to submit gradation data provided by the quarry for approval of the stone gradation. Prior to final payment for items 1001 & 1002 Contractor must accompany invoices with approved weight tickets (from certified scales) to confirm the specified quantity of stone has been sufficiently delivered to the project site.

DELIVERY, STORAGE, AND HANDLING

Stone may be produced from any Tennessee Department of Transportation (TDOT) approved source. Stone deliveries may not be dropped from a height greater than 5’ in order to prevent damage to materials. Stones that appear to be breaking from delivery and handling methods can be sent back to no additional expense to the government. Stone shall be placed in conical pile under the discretion of the delivery coordinator.

QUARRY-RUN STONE

Riprap and crushed stone shall be durable and of suitable quality to ensure permanence in the structure and in the climate in which it is to be used. It shall be free from cracks, seams, and other defects that would tend to increase unduly its deterioration from natural causes. The inclusion of objectionable quantities of dirt, sand and clay, and chert shall not be permitted. In addition, shale and shaly seams shall not be included as placed stone. All stone for the stone protection areas shall be quarried with neither the breadth nor the thickness of any piece being less than one third its length. Stone shall be nearly rectangular in section as much as practicable. All stone shall be reasonably well graded in the sizes listed.

TDOT CLASS A-1 Riprap

As a minimum, stone provided for riprap stabilization shall possess the following standards:

Specific Gravity > 2.60 Absorption < 1% Unit Mass > 160 lbs/ft3 Wet & Dry % Loss (at 80 cycles) < 1% Freeze & Thaw % Loss (at 50 cycles) < 10% LA Abrasion % Loss (at 500 cycles) < 25% Petrographic Examination:

Chert < 10% Argillaceous < 2%

Gradation Tolerances Stone used for slope protections shall conform to TDOT Std Specs Machined Riprap Class A-1. Machined Riprap (Class A-1) shall vary in size from 2 inches to 1.25 feet with no more than 20% by weight being less than 4 inches.

Provide washed or clean rock, at no additional cost to the Department, for sensitive areas of the Project, as shown on the Plans, described in permits, or designated by the Engineer. Obtain the Engineer’s approval of washed or clean rock before placing in environmentally sensitive areas.

When using rock or stone as riprap, ensure that the material meets the quality requirements in in the table below.

Table 1: Coarse Aggregate Quality Requirements

Application

Sodium Sulfate Soundness Loss

AASHTO T 104,

%max

L A Abrasion

AASHTO T 96,

%max

Absorption

AASHTO T 85,

%max

Machined Riprap 12 N/A N/A

#57 Crushed Stone (clean and washed)

Provide coarse aggregate meeting the gradation requirements of AASHTO M 43 as shown below.

(ITEM NO. 1003) GEOTEXTILE (TYPE III)

REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D123 (2015b; R 2017) Standard Terminology Relating to Textiles

ASTM D4354 (2012; R 2020) Sampling of Geosynthetics for Testing

ASTM D4355/D4355M (2014) Deterioration of Geotextiles from Exposure to Light, Moisture and Heat in a Xenon-Arc Type Apparatus

ASTM D4491/D4491M (2017) Standard Test Methods for Water Permeability of

Geotextiles by Permittivity

ASTM D4533/D4533M (2015) Standard Test Method for Trapezoid

Tearing Strength of Geotextiles

ASTM D4632/D4632M (2015a) Grab Breaking Load and Elongation of Geotextiles

ASTM D4751 (2020) Standard Test Method for Determining

Apparent Opening Size of a Geotextile

ASTM D4873/D4873M (2017) Standard Guide for Identification, Storage, and Handling of Geosynthetic Rolls and Samples

ASTM D4884/D4884M (2014a) Strength of Sewn or Thermally Bonded

Seams of Geotextiles

ASTM D6241 (2014) Standard Test Method for the Static Puncture Strength of Geotextiles and Geotextile-Related Products Using a 50-mm Probe

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 1110-2-1601 (1991; 1994 Change 1) Engineering and Design --

Hydraulic Design of Flood Control Channels

Submit the manufacturer's product data with certification of the geotextile material that meets the below requirements. All brands of geotextile and all seams to be used will be accepted on the basis of mill certificates or affidavits. Submit duplicate copies of the mill certificate or affidavit signed by a legally authorized official from the company manufacturing the geotextile.

The mill certificate or affidavit shall attest that the geotextile meets the chemical, physical and manufacturing requirements stated in this specification.

DELIVERY, STORAGE, AND HANDLING

Deliver only approved geotextile rolls to the project site. Label, ship, store, and handle all geotextile in accordance with ASTM D4873/D4873M. Do not use hooks, tongs, or other sharp instruments for handling geotextile.

PRODUCTS

MATERIALS

Provide geotextile that is a non-woven pervious sheet of plastic yarn as defined by ASTM D123 matching or exceeding the minimum average roll values listed in the below table. Strength values indicated in the table are for the weaker principal direction.

MINIMUM PHYSICAL REQUIREMENTS FOR DRAINAGE GEOTEXTILE

PROPERTY UNITS ACCEPTABLE VALUES TEST METHOD

GRAB STRENGTH lb 200 ASTM D4632/D4632M

SEAM STRENGTH lb 180 ASTM D4632/D4632M

PUNCTURE lb 100 ASTM D6241

TRAPEZOID TEAR lb 80 ASTM D4533/D4533M

APPARENT OPENING

SIZE

U.S. SIEVE 80-100 ASTM D4751

ULTRAVIOLET

DEGRADATION

Percent 50 at 500 Hrs ASTM D4355/D4355M

WEIGHT Oz/sy 8 ASTM D5261

Geotextile Fiber

Use fibers consisting of a long-chain synthetic polymer composed of at least 85 percent by weight of polyolefins, polyesters, or polyamides. Add stabilizers and/or inhibitors to the base polymer, if necessary to make the filaments resistant to deterioration caused by ultraviolet light and heat exposure. Do not add reclaimed or recycled fibers or polymer to the formulation. Form geotextile into a network such that the filaments or yarns retain dimensional stability relative to each other, including the edges. Finish the edges of the geotextile to prevent the outer fiber from pulling away from the geotextile.

Seams Sew the seams of the geotextile with thread of a material meeting the chemical requirements given above for geotextile yarn or bond the seams by cementing or by heat. Attach the sheets of geotextile at the factory or another approved location, if necessary, to form sections not less than 10 feet wide.

Test seams in accordance with method ASTM D4884/D4884M. Seam strength less than 90 percent of the required grab tensile strength of the unaged geotextile in any principal direction is not permitted.

Securing Pins

Securing pins are to be included as incidental to the cost of Item NO. 1003 Geotextile (Type III). Use of securing pins will be minimized for this desired application, provide a minimum of 100 securing pins in accordance with the manufacturer’s recommendation.

(ITEM NO. 1004) GEOGRID

ASTM D4355/D4355M (2014) Deterioration of Geotextiles from Exposure to

Light, Moisture and Heat in a Xenon-Arc Type Apparatus

ASTM D4595 (2017) Standard Test Method for Tensile Properties of Geotextiles by the Wide-Width Strip Method

ASTM D4873/D4873M (2017) Standard Guide for Identification, Storage, and

Handling of Geosynthetic Rolls and Samples

ASTM D5262 (2007; R 2016) Standard Test Method for Evaluating the Unconfined Tension Creep Behavior of Geosynthetics

ASTM D5321/D5321M (2020) Standard Test Method for

Determining the Shear Strength of Soil- Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear

ASTM D6637 (2011) Standard Test Method for Determining Tensile

Properties of Geogrids by the Single or Multi-Rib Tensile Method

ASTM D6706 (2001; R 2013) Standard Test Method for Measuring

Geosynthetic Pullout Resistance in Soil

GEOSYNTHETIC INSTITUTE (GSI)

GSI GRI GG4a (2012) Determination of the Long-Term Design Strength of Stiff Geogrids

GSI GRI GG4b (2012) Determination of the Long-Term Design

Strength of Flexible Geogrids

GSI GRI GG6 (1996) Grip Types for Use in Wide Width Testing of Geotextiles and Geogrids

Submit the product data of the proposed geogrid that meets or exceeds the requirements stated herein, as well as the certification from the selected manufacturer indicating these requirements and test report are met. Bi-axial geogrid will be acceptable for this application.

Label each roll with the manufacturer's name, product identification, roll dimensions, lot number, and date manufactured.

Handle and unload geogrid rolls by hand, or with load carrying straps, a fork lift with a stinger bar, or an axial bar assembly. Do not drag, lift by one end, lift by cables or chains, or drop geosynthetic rolls to the ground.

Since the geogrid will be stored outdoors, elevate the rolls from the ground surface. Protect geogrids, except for extruded grids, with an opaque waterproof cover (tarp). The cost of the supplying the tarp, and the wood blocks for elevation, should be considered incidental to the cost of the geogrid. Contact the TPOC for more details related to executing the protection action.

GEOGRID REINFORCEMENT

a. Submit manufacturer's certified raw and roll material test reports including ultimate strength performed in accordance with ASTM D6637 or ASTM D4595 (modified). Test results not meeting the requirements in Table 1 will result in rejection of applicable rolls. Provide certified test reports with the product data submittal.

b. Provide geogrid structure that is dimensionally stable and able to retain its geometry under manufacture, transport and installation. Manufacture geogrid with 100 percent virgin resin consisting of polyethylene, polypropylene, polyester, or other approved material and with a maximum of 5 percent in-plant regrind material. Provide polyester resin with a minimum molecular weight of 25,000 and a carboxyl end group number less than 30. Stabilize polyethylene and polypropylene with long term antioxidants.

c. Submit Certificates of Compliance for the materials provided and results of conformance testing.

Geogrid Reinforcement Properties

The geogrid product must meet the property requirements listed in Table 1. Reinforcement strength requirements represent minimum average roll values in the machine direction.

TABLE 1

PROPERTY REQUIREMENT TEST DESIGNATION

Allowable Strength (Ta) at 5 percent strain

700 lb/ft GSI GRI GG4a or GSI GRI GG4b

UV Resistance 70 percent after 500 hours ASTM D4355/D4355M

Coefficient of Interaction* for Pullout

0.85 ASTM D6706

Aperture Size 2.25”

Allowable Strength

Submit Geogrid allowable strength calculated in accordance with GSI GRI GG4a or GSI GRI GG4b.

Itemize each reduction factor. Account for splice efficiency in the calculations. Allowable strength is based on reduction factors for installation damage, durability, and creep that are applicable to site specific conditions. Determine reduction factors in accordance with the test procedures documented in GSI GRI GG4a or GSI GRI GG4b. The minimum reduction factor for durability is 1.1 for polyethylene and polypropylene geogrids and 1.15 for coated polyester geogrids. The minimum reduction factor for installation damage is 1.1 for all polymers. Base the reduction factor for creep on testing performed in accordance with ASTM D5262 at the strain specified in Table 1.

SPLICES

Provide splices consisting of a standard method or device recommended by the manufacturer of the geogrid. Splices must be at least 75 percent efficient. Demonstrate the splice efficiency through tests performed in accordance with GSI GRI GG4a or GSI GRI GG4b. Splicing may consist of overlaps, fusion wedge welding, sewing, or bodkin connections. Splicing methods that are dependent on installer experience and skill level, such as hot air and torch-applied open flame, are not acceptable.

(ITEM NO. 1005) GABION BASKETS

The Contractor is to provide the required quantity of gabion baskets at the proposed dimension size of 3’ width by 3’length by 3’ in height. The intent of the gabion basket will be for a small gravity wall that will have an application of approximately 129 linear feet (60 linear feet in a two stacked configuration, and 9 linear feet in a single stack). Any other proposed sizes must require additional approval and must be clearly indicated in the submittal, the only size that would be consider for adjustment would be the length dominion, width and height must remain the same. Incidental to the cost of the gabion baskets the Contactor is to procure and deliver the any specialty tools, fasteners, or any other miscellaneous products recommended/required by the manufacturer instructions for installation. This includes, but not limited, hog rings, hog rings guns, lid closure tools, corner closure tool, tact ties, etc. Any additional items to be purchased shall be enough to supply a four man labor crew onsite; coordinate this with the Technical POC (Jake Pierce) and the manufacturer’s recommendation submittal.

ASTM A90/A90M (2021) Standard Test Method for Weight [Mass] of

Coating on Iron and Steel Articles with Zinc or Zinc- Alloy Coatings

ASTM A313/A313M (2017) Standard Specification for Stainless

Steel Spring Wire

ASTM A370 (2024) Standard Test Methods and Definitions for Mechanical Testing of Steel Products

ASTM A428/A428M (2021) Standard Test Method for Weight (Mass) of

Coating on Aluminum-Coated Iron or Steel Articles

ASTM A641/A641M (2019) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire

ASTM A764 (2007; R 2021) Standard Specification for Metallic

Coated Carbon Steel Wire, Coated at Size and Drawn to Size for Mechanical Springs

ASTM A809 (2023) Standard Specification for Aluminum-Coated

(Aluminized) Carbon Steel Wire

ASTM A853 (2019) Standard Specification for Steel Wire, Carbon, for General Use

ASTM A856/A856M (2003; R 2020) Standard Specification for Zinc-5%

Aluminum-Mischmetal Alloy-Coated Carbon Steel

Wire

ASTM A974 (1997; R 2021) Standard Specification for Welded Wire

Fabric Gabion and Gabion Mattresses (Metallic Coated or Polyvinyl Chloride (PVC) Coated)

ASTM A975 (2024) Standard Specification for

Double-Twisted Hexagonal Mesh Gabions and Revet Mattresses (Metallic-Coated Steel Wire or Metallic- Coated Steel Wire With Poly(Vinyl Chloride) (PVC) Coating)

ASTM B117 (2019) Standard Practice for Operating Salt Spray

(Fog) Apparatus

ASTM C33/C33M (2024a) Standard Specification for Concrete Aggregates

ASTM C136/C136M (2019) Standard Test Method for Sieve Analysis of

Fine and Coarse Aggregates

ASTM D412 (2016; R 2021) Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension

ASTM D638 (2014) Standard Test Method for Tensile Properties of Plastics

ASTM D746 (2014) Standard Test Method for Brittleness Temperature of Plastics and Elastomers by Impact

ASTM D792 (2013) Density and Specific Gravity (Relative

Density) of Plastics by Displacement

ASTM D1499 (2013) Filtered Open-Flame Carbon-Arc Type Exposures of Plastics

ASTM D2240 (2015; E 2017) Standard Test Method for Rubber

Property - Durometer Hardness

ASTM D5312/D5312M (2012; R 2013) Evaluation of Durability of Rock for Erosion Control Under Freezing and Thawing Conditions

ASTM G152 (2013; R 2021) Standard Practice for Operating Open Flame Carbon Arc Light Apparatus for

Exposure of Nonmetallic

Materials

U.S. ARMY CORPS OF ENGINEERS (USACE)

COE CRD-C 144 (1992) Standard Test Method for Resistance of Rock to

Freezing and Thawing

Submit the product data for the selected gabion product in accordance with the quantity and requirements listed herein. Furthermore, more submit, and procure once approved, the manufacturer’s recommended tools and accessories for the successful installation of the selected product. Include in the submittal the manufacturer’s recommended installation resources and any additional guidance for the successful installation.

QUALITY ASSURANCE

Test Report or Documents

Furnish copies of all test results to the Technical POC.

Deliver gabions with all components mechanically connected at the production facility. All gabions are supplied in the collapsed form, either folded or bundled or rolled, for shipping. Bundles are banded together at the factory for ease of shipping and handling.

a. Deliver gabions to the jobsite labeled in bundles. Labels show the dimensions of the gabions included, the number of pieces and the color code.

MATERIALS

Double twisted wire mesh Gabions

Double twisted wire mesh gabions must be Style 1 or Style 2 and manufactured with a non-raveling mesh made by twisting continuous pairs of wires through three half turns (commonly called double twisted) to form a hexagonal-shaped opening. Ensure gabion sizes, wire diameters, mesh opening sizes, and tolerances comply with the requirements of ASTM A975 (Tables 1, 3, 4, 5, 6, and Sections 9). The minimum mesh opening sizes should by 3.25” by 4.5” unless otherwise approved by a submitting the manufacturer’s recommended alternative sizing in accordance with the intended gabion fill of TDOT Class A-1 riprap stone. Provide gabions that meet the following test requirements:

Metallic Coating

Style 1 is wire mesh made from wire which is zinc coated before being double twisted into mesh.

Fasteners, lacing wire, and stiffeners are produced from zinc-coated wire. Style 2 wire mesh made from wire which is coated with Zn-5Al-MM before being double twisted into mesh. Fasteners, lacing wire, and stiffeners are also produced from Zn-5Al-MM coated wire.

Ensure coating weights conform to the requirements of ASTM A641/A641M, Class 3 (Style 1), or to ASTM A856/A856M (Style 2).

Wire Tensile Strength

The tensile strength of the wire used for the double twisted mesh, lacing wire, and stiffener, when tested in accordance with Test Methods and definitions ASTM A370, must be in accordance with the requirements of ASTM A641/A641M (Style 1) and ASTM A856/A856M (Style 2), for soft temper wire.

Mesh Strength and Panel to Panel Joint Strength

Use the minimum strength requirements of the mesh, selvedge wire to mesh connection, panel to panel connection, and punch test, when tested in accordance with ASTM A975 Section 13.1, as shown in Table 1. The strength values reported in lb/ft are referred to the unitary width of the specimen. Perform the panel to panel test to demonstrate the ability of the fastening system to achieve the required strength, and indicate the number of wire revolutions for the lacing wire or the ring spacing for ring fasteners used. Use the same number of wire revolutions or ring spacing in the field installation. Pleating the based panel to obtain internal panels is prohibited.

TABLE 1

Minimum Strength Requirements of Mesh and Connections

Test Description Gabions, metallic coated (Style 1 or 2)

Tensile strength parallel to twist 3500 lb/ft

Tensile strength perpendicular to twist 1800 lb/ft

Connection to selvedges 1400 lb/ft

Panel to Panel (using lacing wire or ring fasteners) 1400 lb/ft

Punch Test 6000 lb

EROSION CONTROL MATERIALS

The following list of erosion control materials below, are minimum requirements that the contractor is to select, and submit for approval. Contractor may bypass the requirements list below if the individual selected product is shown to be on the Tennessee Department of Transportation (TDOT) ‘Qualified Products List (QPL)’. If a TDOT ‘Qualified Products List’ item is selected, contractor is to submit documentation indicting the material number, manufacturer number, product category number, and evaluation number for approval.

(ITEM NO. 1006) SILT FENCE

Select and submit a silt fence product that meets or exceed the following product data requirements in table below:

Silt Fence Fabric Specifications

(ITEM NO. 1007) STRAW WATTLES/TUBES

Tube/wattle netting should be a knitted material with 1/8-to-3/8-inch opening and made of photodegradable (polypropylene, HDPE) or biodegradable (cotton, just, coir) material. The minimum diameter for any tube or wattle should be 8 inches. Include and procure wooden stakes that are a minimum 1.5 by 1.5 inch and a minimum 36 inches long. Wooden stakes are considered incidental to the cost of the straw wattles and should be procured at a rate of 1 stake per 4 linear feet of straw wattles required. Submit product data indicating these requirements would be met.

(ITEM NO. 1008) EROSION CONTROL BLANKETS

Provide erosion control blankets that consist of 100% biodegradable fiber and a matrix material that is 100% straw. Type I or Type II erosion control blankets are acceptable. Incidental to the erosion control blankets include the anchoring pins (staples) that comply with the following: 11 gauge, at least 6 inches length by 1 inch width. In the product data submittal include the manufacturer’s recommended quantity based on the total area, as well as to achieve a spacing of 1 foot along seems that would comply with the selected product’s width.

(ITEM NO. 1009) PERMANENT GRASS SEED

Provide an applicable quantity of grass seed consisting of a tall fescue seed mix that will cover the required bidding unit of 1-acre bare ground . Seed mix is to include fertilizers and soil improvers within the blend and be approved for a heat tolerant application . Include incidental to the item one seed broadcast spreader that is on wheels and is manually powered (operated by a person pushing and walking behind the spreader). Submit the product data for both the selected grass seed (include specific quantity and weight) and the broadcast spreader for approval.