S01 Attachment 1 Specifications.pdf

NRCS 09/2020

Ohio EWP – Pleasant Valley Sewer EWP

INDEX OF CONSTRUCTION AND MATERIAL SPECIFICATIONS

Specification Construction Specification Material Number Specification Number Specification

1 Clearing 521 Aggregates For Drainfill and Filters

2 Clearing and Grubbing 523 Rock For Riprap

4 Channel Clearing and Shaping 592 Geotextile

5 Pollution Control

6 Seeding Sprigging and Mulching

8 Mobilization and Demobilization

9 Traffic Control

11 Removal of Water

21 Excavation

23 Earthfill

24 Drainfill

61 Rock Riprap

94 Contractor Quality Control

426 Access Road Construction and Maintenance

Construction Specification 1—Clearing

1. Scope The work shall consist of the clearing and disposal of trees, snags, logs, brush, shrubs, stumps, and rubbish from the designated areas.

2. Classification Unless otherwise specified in section 8, clearing will be classified according to the following definitions:

Class A—Requires that trees and other woody vegetation be removed so that the remaining stumps extend no higher than 4 inches above the ground surface.

Class B—Requires that trees and other woody vegetation be removed so that the remaining stumps extend no higher than 12 inches above the ground surface.

Class C—Requires that trees and other woody vegetation be removed as near the ground surface as conventional tools or field conditions will permit or as specified in section 8.

3. Protection of existing vegetation Trees and other woody vegetation designated to remain undisturbed shall be protected from damage throughout the entire construction period. Any damage resulting from the contractor's operations or neglect shall be repaired by the contractor.

Earthfill, stockpiling of materials, vehicular parking, and excessive foot or vehicular traffic shall not be allowed within the dripline of vegetation designated to remain in place. Vegetation damaged by any of these or similar actions shall be replaced with viable vegetation of the same species or as specified in section 8 and approved by the contracting officer.

Any cuts, skins, scrapes, or bruises to the bark of the vegetation shall be carefully trimmed and local nursery accepted procedures used to seal damaged bark.

Any limbs or branches 0.5-inch or larger in diameter that are broken, severed, or otherwise seriously damaged during construction shall be cut off at the base of the damaged limb or branch flush with the adjacent limb or tree trunk.

All roots 1 inch or larger in diameter that are cut, broken, or otherwise severed during construction operations shall have the end smoothly cut perpendicular to the root. Roots exposed during excavation or other operations shall be covered with moist earth and/or backfilled as soon as possible to prevent them from drying.

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4. Marking The limits of the areas to be cleared will be marked by stakes, flags, tree markings, or other suitable methods. Trees to be left standing and uninjured will be designated by special markings placed on the trunks at a height of about 6 feet above the ground surface.

5. Clearing All trees not marked for preservation and all snags, logs, brush, shrubs, stumps, rubbish, and similar materials shall be cleared from within the limits of the marked areas.

6. Disposal All materials cleared from the designated areas shall be disposed of at locations shown on the drawings or in a manner specified in section 8. The contractor is responsible for complying with all local rules and regulations and the payment of any and all fees that may result from the disposal at locations away from the construction location.

7. Measurement and payment Method 1—For items of work for which specific unit prices are established in the contract, the cleared area is measured to the nearest 0.1 acre. Payment for clearing is made for the total area within the designated limits at the contract unit price for the specified class of clearing. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 2—For items of work for which specific unit prices are established in the contract, the length of the cleared area is measured to the nearest full station (100 feet) along the line designated on the drawings or in the specifications.

Payment for clearing is made for the total length within the designated limits at the contract unit price for the specified class of clearing. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 3—For items of work for which specific unit prices are established in the contract, the cleared areas is measured within the specified limits to the nearest

0.1 acre. The cleared areas are determined by measuring the width cleared, within the specified limits, at representative sections and multiplying the average width between sections by the linear distance between sections. Payment for clearing is made at the contract unit price for the item and shall constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

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Method 4—For items of work for which specific lump sum prices are established in the contract, payment for clearing is made at the contract lump sum prices.

Such payment shall constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

All Methods—These provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract, but not listed in the bid schedule is included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in section 8.

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8. Items of work and construction details

Items of work to be performed in conformance with this specification and the construction details therefore are:

a. Bid Item 1, Clearing

1. This item shall consist of all clearing within the work limits needed to perform the work required by this contract. Along the proposed right bank of the stream, the work limits as shown on the drawings are also the clearing limits.

2. Clearing shall be Class C. All stumps shall be flush cut with the ground surface.

3. No burning or burying will be permitted within the work limits. Open burning of cleared materials shall comply with Chapter 3745-19 Open Burning Standards of the Ohio Administrative Code.

4. All cleared materials shall be removed from the site by the contractor.

5. Disposal of all cleared materials shall be in a site chosen by the contractor and approved by the contracting officer’s representative.

The elevation of all disposal areas shall be above the 100-year flood elevation based on the most recent Federal Emergency Management Agency (FEMA) flood insurance rate map.

6. The contractor shall furnish a release of claims to the contracting officer’s representative signed by the property owner of each disposal area.

7. Measurement and payment will be by method 4.

8. Items subsidiary to this bid item are:

a. Clearing and Grubbing – Construction Specification 2

b. Contractor Quality Control – Construction Specification 94

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Construction Specification 2—Clearing and Grubbing

1. Scope The work consists of clearing and grubbing and disposal of trees, snags, logs, brush, stumps, shrubs, and rubbish from the designated areas.

2. Protection of existing vegetation 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.

Earthfill, stockpiling of materials, vehicular parking, and excessive foot or vehicular traffic shall not be allowed within the drip line of vegetation designated to remain in place. Vegetation damaged by any of these or similar actions shall be replaced with viable vegetation of the same species, similar condition, and like size unless otherwise approved by the contracting officer.

Any cuts, skins, scrapes, or bruises to the bark of the vegetation shall be carefully trimmed and local nursery accepted procedures used to seal damaged bark.

Any limbs or branches 0.5 inch or larger in diameter that are broken, severed, or otherwise seriously damaged during construction shall be cut off at the base of the damaged limb or branch flush with the adjacent limb or tree trunk. All roots 1-inch or larger in diameter that are cut, broken, or otherwise severed during construction operations shall have the end smoothly cut perpendicular to the root. Roots exposed during excavation or other operations shall be covered with moist earth or backfilled as soon as possible to prevent the roots from drying out.

3. Marking The limits of the area(s) to be cleared and grubbed will be marked by stakes, flags, tree markings, or other suitable methods. Trees to be left standing and uninjured will be designated by special markings placed on the trunk about 6 feet above the ground surface.

4. Clearing and grubbing 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. Unless otherwise specified, all stumps, roots, and root clusters that have a diameter of 1 inch or larger shall be grubbed out to a depth of at least 2 feet below subgrade for concrete structures and 1 foot below the ground surface at embankment sites and other designated areas.

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5. Disposal All materials cleared and grubbed from the designated areas shall be disposed of at locations shown on the drawings or in a manner specified in section 7. 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.

6. Measurement and payment Method 1—For items of work for which specific units prices are established in the contract, the cleared and grubbed area is measured to the nearest 0.1 acre.

Payment for clearing and grubbing is made for the total area within the designated limits at the contract unit price. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 2—For items of work for which specific unit prices are established in the contract, the length of the cleared and grubbed area is measured to the nearest full station (100 feet) along the line designated on the drawing or identified in the specifications. Payment for clearing and grubbing is made for the total length within the designated limits at the contract unit price. Such payment will constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 3—For items of work for which specific unit prices are established in the contract, each tree, stump, and snag having a diameter of 4 inches or larger and each log having a diameter of 4 inches or larger and a length of 10 feet are measured before removal. The size of each tree and snag is determined by measuring its trunk at breast height above the natural ground surface. The size of each log is determined by measuring the butt and by measuring its length from butt to tip. The size of each stump is measured at the top. Diameter is determined by dividing the measured circumference by 3.14.

Payment for clearing and grubbing of each tree, stump, and snag having a diameter of 4 inches or larger and each log having a diameter of 4 inches or larger and a length of 10 feet or larger is made at the contract unit price for its size designation as determined by the following schedule:

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Measured diameter Size designation

(in) (in)

4 to 8 6 8 to 12 10 12 to 24 18 24 to 36 30 36 to 60 48 Over 60 60

The sum of such payments shall constitute full compensation for clearing and grubbing (including the clearing and grubbing of smaller trees, stumps, snags, logs, brush, shrubs, and roots), applicable permits and associated fees, and rubbish removal. Such payment shall constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

Method 4—For items of work for which specific lump sum prices are established in the contract, payment for clearing and grubbing is made at the contract lump sum price. Such payment shall constitute full compensation for all labor, equipment, tools, and all other items necessary and incidental to the completion of the work.

All Methods—The following provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract, but not listed in the bid schedule will be included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in section 7.

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7. Items of work and construction details

Items of work to be performed in conformance with this specification and the

a. Subsidiary Item – Clearing and Grubbing

1. This item shall consist of all clearing and grubbing within the work limits needed to perform the work required by this contract. Trees and brush with a DBH <4” shall be cleared and grubbed as stated in Section 4. Larger vegetation shall be cleared as described by Construction Specification 1 - Clearing.

2. No burning or burying will be permitted within the work limits. Open burning of cleared and grubbed materials shall comply with Chapter 3745-19 Open Burning Standards of the Ohio Administrative Code.

3. All cleared and grubbed materials shall be removed from the work site.

4. Disposal of all cleared and grubbed materials shall be in a site chosen by the contractor and approved by the contracting officer’s representative. The elevation of all disposal areas shall be above the 100-year flood elevation based on the most recent Federal Emergency Management Agency (FEMA) flood insurance rate map.

5. The contractor shall furnish a release of claims to the contracting officer’s representative signed by the property owner of each disposal area.

6. No separate payment will be made for Clearing and Grubbing.

Compensation for this item will be included in payment for Bid Item 1, Clearing.

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Construction Specification 4—Channel Clearing and Shaping

1. Scope The work consists of clearing designated areas by the removal and disposal of trees, logs, stumps, shrubs, brush, and rubbish, and the shaping of the channel.

2. Protection of existing vegetation 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.

Earthfill, stockpiling of materials, vehicle or equipment parking, and excessive foot or vehicle traffic shall not be allowed within the drip line of vegetation designated to remain in place. Vegetation damaged by any of these or similar actions shall be replaced with viable vegetation of the same species, similar condition, and like size unless otherwise approved by the contracting officer.

Any cuts, skins, scrapes, or bruises to the bark of the vegetation shall be carefully trimmed and local nursery accepted procedures used to seal damaged bark.

Any limbs or branches 0.5 inch or larger in diameter that are broken, severed, or otherwise seriously damaged during construction shall be cut off at the base of the damaged limb or branch flush with the adjacent limb or tree trunk.

All roots 1 inch or larger in diameter that are cut, broken, or otherwise severed during channel shaping shall have the end smoothly cut perpendicular to the root. Roots exposed during channel shaping operations shall be covered with moist soil as soon as possible to prevent roots from drying out.

3. Marking The limits of the area(s) to be cleared and shaped are marked by stakes, flags, paint, tree markings, or other suitable methods or as specified in section 8 of this specification, or they will be shown on the drawings. Trees to remain standing, undisturbed, and uninjured are designated by special markings.

4. Clearing Trees and other vegetation marked for clearing shall be cut off as near the ground surface as conventional tools and equipment normally permit. All trees not marked for preservation and all snags, logs, brush, shrubs, stumps, and rubbish shall be cleared from within the area limits identified.

5. Disposal All woody material, vegetation, and rubbish resulting from clearing from

4-1 designated areas shall be disposed of at the locations and in a manner shown on the drawings, or as specified in section 8 of this specification.

6. Shaping The channel bottom and side slopes shall be shaped as shown on the drawings.

The resulting shaped channel surface shall be reasonably smooth. Material excavated during the channel shaping operation shall be removed from the channel and disposed of as specified in section 8 of this specification.

7. Measurement and payment Method 1—For items of work for which specific unit prices are established by the contract, the designated cleared and shaped area is measured and the area determined to the nearest 0.1 acre. Payment for clearing and shaping is made at the contract unit price for the item and shall constitute full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory completion of the work.

Method 2—For items of work for which specific unit prices are established by the contract, the length of the cleared and shaped channel designated is measured to the nearest 100 feet. Payment for clearing and shaping is made at the contract unit price for the item and shall constitute full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory performance of the work.

Method 3—For items of work for which specific unit prices are established by the contract, the cleared and shaped area(s) is measured and the area determined to the nearest 0.1 acre. The designated cleared and shaped area(s) is determined from the measured width at representative sections and the distance between the sections. Payment for clearing and shaping is made at the contract unit price for the item and shall constitute full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory completion of the work.

Method 4—For items of work for which specific lump sum prices are established by the contract, the extent of clearing and shaping is not measured or determined for payment. Payment for clearing and shaping is made at the contract lump sum price for the item and shall constitute full compensation for all labor, equipment, tools, applicable permits and associated fees for burning and disposal of refuse, and all other items necessary and incidental to the satisfactory completion of the work.

All Methods—The following provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract, but

4-2 not listed in the bid schedule is included in the payment for the item of work to which it is made subsidiary. Such items and items to which they have been made subsidiary are identified in section 8 of this specification.

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8. Items of work and construction details

a. Subsidiary Item -Channel Clearing and Shaping

1. This item shall consist of removal and disposal of trees, logs, stumps, brush, and rubbish within the channel cross-section, and the shaping of the channel, as shown and described in the drawings. This includes all trees growing inside the proposed right top of bank of the stream as shown on the drawings.

2. The organic and non-indigenous material shall be disposed of, off site, at an approved dump site.

3. The beginning and ending of the clearing and shaping will be marked in the field with stakes and ribbons.

4. Fill material (if needed) placed behind or under the rock riprap, shall be obtained from within the existing channel banks.

5. Section 7 Measurement and Payment does not apply. No separate payment will be made for Channel Clearing and Shaping.

Compensation for this item will be included in the payment for Bid Item 5 – Rock Riprap.

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Construction Specification 5—Pollution Control

1. Scope The work consists of installing measures or performing work to control erosion and minimize the production of sediment and other pollutants to water and air from construction activities.

The following BioPreferred® product categories are applicable to this specification;

mulch and compost materials, erosion control materials, fertilizers, dust suppressants, and agricultural spray adjuvants.

2. Material Silt fence shall conform to the requirement of Materials Specification 592, Geotextile. All other material furnished shall meet the requirements of the material specifications listed in section 8 of this specification.

3. Erosion and sediment control measures and works The measures and works shall include, but are not limited to, the following:

Staging of earthwork activities—The excavation and moving of soil materials shall be scheduled to minimize the size of areas disturbed and unprotected from erosion for the shortest reasonable time.

Seeding—Seeding to protect disturbed areas shall occur as soon as reasonably possible following completion of that earthwork activity.

Mulching—Mulching to provide temporary protection of the soil surface from erosion.

Diversions—Diversions to divert water from work areas and to collect water from work areas for treatment and safe disposition. They are temporary and shall be removed and the area restored to its near original condition when the diversions are no longer required or when permanent measures are installed.

Stream crossings—Culverts or bridges where equipment must cross streams.

They are temporary and shall be removed and the area restored to its near original condition when the crossings are no longer required or when permanent measures are installed.

Sediment basins—Sediment basins collect, settle, and eliminate sediment from eroding areas from impacting properties and streams below the construction site(s). These basins are temporary and shall be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

Sediment filters—Straw bale filters or geotextile silt fences trap sediment from areas of limited runoff. Sediment filters shall be properly anchored to prevent erosion under or around them. Silt fences shall be installed and maintained in accordance with ASTM D6462. These filters are temporary and shall be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

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Waterways—Waterways for the safe disposal of runoff from fields, diversions, and other structures or measures. These works are temporary and shall be removed and the area restored to its original condition when they are no longer required or when permanent measures are installed.

Other—Additional protection measures as specified in section 8 of this specification or required by Federal, State, or local government.

4. Chemical pollution The contractor shall provide watertight tanks or barrels or construct a sump sealed with plastic sheets to collect and temporarily contain chemical pollutants, such as drained lubricating or transmission fluids, grease, soaps, concrete mixer washwater, or asphalt, produced as a by-product of the construction activities.

Pollutants shall be disposed of in accordance with appropriate state and Federal regulations. At the completion of the construction work, tanks, barrels, and sumps shall be removed and the area restored to its original condition as specified in section 8 of this specification. Sump removal shall be conducted without causing pollution.

Sanitary facilities, such as chemical toilets, or septic tanks shall not be located next to live streams, wells, or springs. They shall be located at a distance sufficient to prevent contamination of any water source. At the completion of construction activities, facilities shall be disposed of without causing pollution as specified in section 8 of this specification.

5. Air pollution The burning of brush or slash and the disposal of other materials shall adhere to state and local regulations.

Fire prevention measures shall be taken to prevent the start or spreading of wildfires that may result from project activities. Firebreaks or guards shall be constructed and maintained at locations shown on the drawings.

All public access or haul roads used by the contractor during construction of the project shall be sprinkled or otherwise treated to fully suppress dust. All dust control methods shall ensure safe construction operations at all times. If chemical dust suppressants are applied, the material shall be a commercially available product specifically designed for dust suppression and the application shall follow manufacturer's requirements and recommendations. A copy of the product data sheet and manufacturer's recommended application procedures shall be provided to the engineer 5 working days before the first application.

6. Maintenance, removal, and restoration All pollution control measures and temporary works shall be adequately maintained in a functional condition for the duration of the construction period.

All temporary measures shall be removed and the site restored to near original condition.

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7. Measurement and payment

Method 1—For items of work for which specific unit prices are established in the contract, each item is measured to the nearest unit applicable. Payment for each item is made at the contract unit price for that item. For water or chemical suppressant items used for dust control for which items of work are established in section 8 of this specification, measurement for payment will not include water or chemical suppressants that are used inappropriately or excessive to need.

Such payment will constitute full compensation for the completion of the work.

Method 2—For items of work for which lump sum prices are established in the contract, payment is made as the work proceeds and supported by invoices presented by the contractor that reflect actual costs. If the total of all progress payments is less than the lump sum contract price for this item, the balance remaining for this item will be included in the final contract payment. Payment of the lump sum contract price will constitute full compensation for completion of the work.

Method 3—For items of work for which lump sum prices are established in the contract, payment will be prorated and provided in equal amounts on each monthly progress payment estimate. The number of months used for prorating shall be the number estimated to complete the work as outlined in the contractor's approved construction schedule. The final month's prorate amount will be provided with the final contract payment. Payment as described will constitute full compensation for completion of the work.

All Methods—The following provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract, but not listed in the bid schedule is included in the payment for the item of work to which it is made subsidiary. Such items, and the items to which they are made subsidiary, are identified in section 8 of this specification.

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8. Items of work and construction details

Items of work to be performed in conformance with this specification and the

a. Subsidiary Item - Pollution Control

1. The Contractor is required to provide the Contracting Officer's Technical Representative with a written Pollution Control Plan of Operations for this project.

2. The Contractor shall perform the work of this project in a manner consistent with and in conformance required by Federal, State, or Local Government, to protect the site and downstream areas from degradation.

3. No equipment shall be operated in the channel of North Fork Creek.

4. Section 7 Measurement and Payment does not apply. No separate payment will be made for Pollution Control. Compensation for this item will be included in the payment for Bid Item 4 -Mobilization and Demobilization.

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Construction Specification 6—Seeding, Sprigging, and Mulching

1. Scope The work consists of preparing the area for treatment; furnishing and placing seed, sprigs, mulch, fertilizer, inoculant, lime, and other soil amendments; and anchoring mulch in designated areas as specified.

The following BioPreferred® product categories are applicable to this specification;

mulch and compost materials, erosion control materials, fertilizers, and agricultural spray adjuvants.

2. Material Seed—All seed must conform to the current rules and regulations of the State where it is being used and must be from the latest crop available. It must meet or exceed the standard for purity and germination listed in section 7.

Seed must be labeled in accordance with State laws and U.S. Department of Agriculture rules and regulations under the Federal Seed Act in effect on the date of invitations for bids. Bag tag figures are evidence of purity and germination. No seed may be accepted with a test date of more than 9 months before the date of delivery to the site.

Seed that has become wet, moldy, or otherwise damaged in transit or storage will not be accepted. The percent of noxious weed seed allowable must be as defined in the current State laws relating to agricultural seeds. Each type of seed must be delivered in separate sealed containers and fully tagged unless an exception is granted in writing by the contracting officer.

Fertilizer—Unless otherwise specified, the fertilizer must be a commercial-grade fertilizer. It must meet the standard for grade and quality specified by State law.

Where fertilizer is furnished from bulk storage, the contractor must furnish a supplier’s certification of analysis and weight. When required by the contract, a representative sample of the fertilizer must be furnished to the contracting officer for chemical analysis.

Inoculants—The inoculant for treating legume seeds must be a pure culture of nitrogen-fixing bacteria prepared specifically for the species and must not be used later than the date indicated on the container or as otherwise specified. A mixing medium, as recommended by the manufacturer, must be used to bond the inoculant to the seed. Two times the amount of the inoculant recommended by the manufacturer must be used, except that four times the amount must be used when seed is applied using a hydraulic seeder. Seed must be sown within 24 hours of treatment and must not remain in the hydraulic seeder longer than 4 hours.

Lime and other soil amendments—Lime must consist of standard ground agriculture limestone, or approved equivalent. Standard ground agriculture limestone is defined as ground limestone meeting current requirements of the State department of agriculture. Other soil amendments must meet quality criteria and application requirements specified in section 7.

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Mulch tackifiers—Asphalt emulsion tackifiers must conform to the requirements of ASTM D977, Specification for Emulsified Asphalt. The emulsified asphalt may be rapid setting, medium setting, or slow setting. Nonasphaltic tackifiers required because of environmental considerations must be as specified in section 7.

Straw mulch material—Straw mulch must consist of wheat, barley, oat or rye straw, hay, grass cut from native grasses, or other plants as specified in section

7. The mulch material must be air-dry, reasonably light in color, and must not be musty, moldy, caked, or otherwise of low quality. The use of mulch that contains noxious weeds is not permitted. The contractor must provide a method satisfactory to the contracting officer for determining weight of mulch furnished.

Other mulch materials—Mulching materials, such as wood cellulose fiber mulch, mulch tackifiers, synthetic fiber mulch, netting, and mesh may be required for specialized locations and conditions. These materials, when specified, must be accompanied by the manufacturer’s recommendations for methods of application.

3. Seeding mixtures, sod, sprigs, and dates of planting The application rate per acre for seed mixtures, sprigs, or sod and date of seeding or planting must be as shown on the plans or as specified in section 7.

4. Seedbed preparation and treatment Areas to be treated must be dressed to a smooth, firm surface. On sites where equipment can operate on slopes safely, the seedbed must be adequately loosened (4 to 6 inches deep) and smoothed. Depending on soil and moisture conditions, disking or cultipacking, or both, may be necessary to properly prepare a seedbed. Where equipment cannot operate safely, the seedbed must be prepared by hand methods by scarifying to provide a roughened soil surface so that broadcast seed will remain in place.

If seeding is to be accomplished immediately following construction operations, seedbed preparation may not be required except on a compacted, polished, or freshly cut soil surface Rocks larger than 6 inches in diameter, trash, weeds, and other debris that will interfere with seeding or maintenance operations must be removed or disposed of as specified in section 7.

Seedbed preparation must be discontinued when soil moisture conditions are not suitable for the preparation of a satisfactory seedbed as determined by the responsible engineer.

5. Seeding, sprigging, fertilizing, mulching, and stabilizing All seeding or sprigging operations must be performed in such a manner that the seed or sprigs are applied in the specified quantities uniformly in the designated areas. The method and rate of seed application must be as specified in section 7.

Unless otherwise specified, seeding or sprigging must be accomplished within 2 days after final grading is completed and approved.

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Fertilizer, lime, and other soil amendments must be applied as specified in section 7. When specified, the fertilizer and soil amendments must be thoroughly incorporated into the soil immediately following surface application.

The rate, amount, and kind of mulching or mesh must be as specified in section

7. Mulches must be applied uniformly to the designated areas. They must be applied to areas seeded not later than 2 working days after seeding has been performed. Straw mulch material must be stabilized within 24 hours of application using a mulch crimper or equivalent anchoring tool or by a suitable tackifier. When the mulch crimper or equivalent anchoring tool is used, it must have straight blades and be the type manufactured expressly for and capable of firmly punching the mulch into the soil. Where the equipment can be safely operated, it must be operated on the contour. Hand methods must be used where equipment cannot safely operate to perform the work required.

The tackifier must be applied uniformly over the mulch material at the specified rate, or it must be injected into the mulch material as it is being applied. Mesh or netting stabilizing materials must be applied smoothly but loosely on the designated areas. The edges of these materials must be buried or securely anchored using spikes or staples as specified in section 7.

The contractor must maintain the mesh or netting areas until all work under the contract has been completed and accepted. Maintenance must consist of the repair of areas damaged by water erosion, wind, fire, or other causes. Such areas must be repaired to reestablish the intended condition and to the design lines and grades required by the contract. The areas must be refertilized, reseeded, and remulched before the new application of the mesh or netting.

6. Measurement and payment Method 1—For items of work for which specific unit prices are established in the contract, each area treated is measured as specified in section 7 and the area is calculated to the nearest 0.1 acre. Payment for treatment is made at the contract unit price for the designated treatment, which will constitute full compensation for completion of the work.

When specified as an item of work, mesh or netting is measured to the nearest square yard of surface area covered and accepted. Payment is made at the contract unit price and will constitute full compensation for completion of the work.

Method 2—For items of work for which specific lump-sum prices are established in the contract, the quantity of work will not be measured for payment. Payment for this item is made at the contract lump-sum price for the item and constitutes full compensation for the completion of the work.

Method 3—For items of work for which lump-sum prices are established in the contract, payment is made as the work proceeds. Progress payments are determined as specified in section 7. Payment of the lump sum contract price constitutes full compensation for completion of the work.

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All Methods—The following provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract but not listed in the bid schedule is included in the payment for the item of work to subsidiary are identified in section 7.

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7. Items of work and construction details

a. Bid Item 2 - Seeding and Mulching

1. This item shall consist off furnishing and applying all seed, applying soil amendments, and mulch on all disturbed areas within the construction limits shown on the drawings.

2. Fertilizer.

All areas shall have fertilizer uniformly applied at the following rates;

Nitrogen (N) 150 pounds per acre, Phosphorus P2O5 150 pounds per acre, and Potassium K2O 150 pounds per acre. For bulk fertilizer delivered to the site a bill of sale showing fertilizer analysis and mass in pounds shall be supplied to the government inspector by the contractor prior to payment of Bid Item 2.

This specification can be met by applying fertilizer having an analysis of 15-15-15 at the rate of 1000 pounds per acre or 23 pounds per thousand square feet.

3. Seed.

All seed shall be labeled, tagged or marked in accordance with Section

907.03 of the Revised Code of Ohio. Seed tags showing germination and purity shall be attached to all bags. Seed tags for all seed used on the contract shall be supplied to the government inspector prior to payment for Bid Item 2. No pre-mixed seed shall be used unless the following conditions are met:

a. The weight, purity, and germination for each kind of seed is specified on the tag for each lot of seed. Seeding rates shall be adjusted for Pure Live Seed (PLS) at the time of seeding. Pure Seed (PLS) = percent germination. Seed shall have the equivalent of a minimum of 80% pure live seed.

When the percent purity multiplied by the percent germination gives a percentage less than 80, the rate of seeding will be increased to provide a minimum PLS of 80.

b. Seeding mixtures and rates per acre for all areas are:

Kentucky 31 Tall Fescue -60 lbs per acre or 1.5 lbs per 1000 square ft.

Annual Ryegrass -10 lbs per acre or 0.25 lbs per 1000 square ft.

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4. Seedbed Preparation.

Seedbed preparation shall be completed within 48 hours after application of fertilizer. All areas accessible to equipment shall be disked to incorporate fertilizer and to prepare a seedbed a minimum of three inches deep. The final seedbed preparation operation shall be performed across the slope and immediately prior to seeding. Suitable equipment shall be used to smooth the seedbed prior to seeding. On areas inaccessible to a disk, a one-inch minimum seedbed will be prepared using suitable tillage tools or hand tools. All rocks greater than 3 inches in size shall be removed.

5. Sowing the Seed.

Seeding shall be completed as soon as practical after final grading.

Broadcast the seed and cover approximately 1/4-inch deep with a light harrow, cultipacker, or other suitable equipment, operated across the slope. On areas too steep or otherwise inaccessible to equipment, the seed shall be covered with a hand rake, or other suitable equipment.

6. Mulch and Method of Anchoring.

Mulch shall consist of (wheat, rye, or barley) straw and shall be applied uniformly at 2 air dried tons per acre or 100 lbs. per 1000 square feet. Mulch shall be applied within 48 hours after making seeding. All wire and string shall be removed from the seeded and mulched areas. No anchoring is required.

7. Measurement and payment will be by Method 1. The measured seeding area includes the area under the Turf Reinforcement Mat.

8. Items subsidiary to this bid item are:

a. Temporary Seeding – Construction Specification 6

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b. Subsidiary Item – Temporary Seeding

1. This item shall consist off furnishing and applying temporary seeding.

2. Seed for temporary shall be Oats.

3. The seeding rate shall be 154 pounds of pure live seed per acre.

This is equivalent to a rate of three and one-half (3.5) pounds per one-thousand square feet.

4. Fertilizer requirements for temporary seeding are waived.

5. Mulching Requirements for temporary seeding are waived.

6. Seedbed preparation for temporary seeding is waived.

7. Sowing the seed shall be by broadcasting in one application.

8. Temporary seeding shall be applied to all earth surfaces made bare by construction activities that are not ready for Bid Item 2 – Seeding and Mulching or otherwise final disposition, within 14 days of being made bare.

9. Section 6 Measurement and Payment does not apply. No separate payment will be made for Temporary Seeding. Compensation for this item will be included in the payment for Bid Item 2 -Seeding and Mulching.

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c. Bid Item 3 - Turf Reinforcing Mat

1. This item consists of furnishing, placing, and installing turf reinforcing mat and fasteners as shown on the drawings.

2. Turf reinforcing mat shall be a type 3 or 4 flexible mat of non-biodegradable polymer monofilament yarns bonded or stitched together to form a stable three-dimensional web which may be supplemented with straw, coconut fiber, or other biodegradable materials.

3. Furnished turf reinforcing mats shall be permeable and the non-biodegradable component shall be resistant to chemical, environmental and ultraviolet degradation.

4. Furnish turf reinforcing mats according to the following requirements. The minimum values for physical properties are derived from quality control testing performed through the NTPEP program:

Property Test Method Type 1 Type 2 Type 3 Type 4 Mass per Unit Area (oz./yd.2, minimum)

ASTM D 6566

Thickness (in., minimum)

ASTM D 6525

0.25

Tensile Strength Machine and Cross Direction a (lb./ft., minimum)

ASTM D 6818

Ultraviolet Resistance a, b (minimum percent strength retained)

ASTM D 4355

80 @ 500 hrs.

500 hrs.

1000 hrs.

1000 hrs.

a Obtain testing values based on the non-degradable portion of the matting alone.

b Testing through the NTPEP program not required, other third-party laboratory results acceptable.

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5. Furnish turf reinforcing mats meeting the following when tested through the NTPEP program or other third-party laboratory for a minimum of 30 minutes:

Property Test Method Type 1 Type 2 Type 3 Type 4 Minimum Permissible Shear Stress Resistance Un-Vegetated (lb./ft.2)

ASTM D 6460

Minimum Permissible Shear Stress Vegetated a (lb./ft.2)

ASTM D 6460 6 8 10 12

a Obtain testing values based on the non-degradable portion of the matting alone.

6. Ship and store the mats such that they are protected from direct sunlight, dirt, dust, moisture, and other debris.

7. Furnish pins or staples conforming to The State of Ohio Department of Transportation Construction and Material Specifications part 671.02.

The Contractor may use 18-inch (450 mm) pins, ¼ inch (4.5 mm) diameter, with attached 1½ inch (38 mm) washers in lieu of 12-inch (300 mm) wire staples as fasteners. Drive pins only until the attached washer is flush with the ground surface.

8. Supply recommended installation procedures with each roll of mat delivered to the job site.

9. Furnish seed conforming to part 2 and 7.a.3 of this specification.

10. Remove all rock, clods, and foreign material 1½ inch (38 mm) or greater in size from the surface to be covered.

11. Do not apply mulch prior to placement of the mat.

12. The top of the planned ODOT Type C Riprap slope, below the planned Turf Reinforcement Mat, shall be choked with friable soil material to fill the voids in the riprap and provide a smooth surface upon which to place the mat.

13. Begin installation at a downstream terminal end trench, 12 inches (300 mm) deep by 6 inches (150 mm) wide. Place mat in bottom of trench with roll of material on downstream side of the trench. After pinning mat securely in bottom of trench, backfill the trench and compact firmly. Roll mat across backfill and upstream.

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14. Construct upstream termination by rolling mat through a terminal end trench, 12 inches (300 mm) by 6 inches (150 mm), being sure to allow a sufficient amount of mat to cover the backfilled trench. After pinning mat in the bottom of trench, backfill the trench and compact firmly. Roll remaining mat back downstream across backfill and pin in place.

15. In addition, construct top of the channel bank termination by rolling the mat through a top anchor trench, 6 inches (150 mm) by 6 inches (150 mm), being sure to allow a sufficient amount of mat to cover the backfilled trench. After pinning the mat in the bottom of the trench, backfill the trench and compact firmly.

16. For all mat types, after installation of the mat, re-seed the mats with the mixture and at the rate specified in section 7.a.3 of this specification. Install the soil fill by raking and smoothing fine topsoil into the turf reinforcing mat in accordance with the manufacturer’s recommendation. Do not leave excessive soil above the matting. Apply mulch to mat after soil filling, if required, after placement.

17. The length and width of the exposed surface of acceptably placed turf reinforcing mat will be measured to the nearest foot. Width measurements will be taken where it varies. The exposed surface area of acceptably placed turf reinforcing mat will be computed by the average end area method to the nearest square yard. Payment will be by the square yard. Such payment will constitute full compensation for all labor, equipment, tools, anchor and termination trenches, fasteners, seed, and all other items necessary and incidental to the completion of the work.

18. Items subsidiary to this bid item are:

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Construction Specification 8—Mobilization and Demobilization

1. Scope The work consists of the mobilization and demobilization of the contractor's forces and equipment necessary for performing the work required under the contract. It does not include mobilization and demobilization for specific items of work for which payment is provided elsewhere in the contract. Mobilization will not be considered as work in fulfilling the contract requirements for commencement of work.

2. Equipment and material Mobilization shall include all activities and associated costs for transportation of contractor's personnel, equipment, and operating supplies to the site;

establishment of offices, buildings, and other necessary general facilities for the contractor's operations at the site; premiums paid for performance and payment bonds including coinsurance and reinsurance agreements as applicable; and other items specified in section 4 of this specification.

Demobilization shall include all activities and costs for transportation of personnel, equipment, and supplies not required or included in the contract from the site; including the disassembly, removal, and site cleanup of offices, buildings, and other facilities assembled on the site specifically for this contract.

This work includes mobilization and demobilization required by the contract at the time of award. If additional mobilization and demobilization activities and costs are required during the performance of the contract as a result of changed, deleted, or added items of work for which the contractor is entitled to an adjustment in contract price, compensation for such costs will be included in the price adjustment for the item or items of work changed or added.

3. Payment Payment will be made as the work proceeds, after presentation of paid invoices or documentation of direct costs by the contractor showing specific mobilization and demobilization costs and supporting evidence of the charges of suppliers, subcontractors, and others. When the total of such payments is less than the lump sum contract price, the balance remaining will be included in the final contract payment. Payment of the lump sum contract price for mobilization and demobilization will constitute full compensation for completion of the work.

Payment will not be made under this item for the purchase costs of materials having a residual value, the purchase costs of materials to be incorporated in the project, or the purchase costs of operating supplies.

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4. Items of work and construction details

a. Bid Item 4 - Mobilization and Demobilization

1. This item shall consist of mobilizing and demobilizing all forces and equipment necessary for performing the work required under this contract.

2. The ingress/egress roads not included in Construction Specification 426, Access Road Construction and Maintenance shall be maintained to the extent that a two-wheel-drive pickup truck with stock equipment can traverse. After all contract work is completed all ingress/egress roads shall be smoothed to remove ruts, potholes, and all other asperities. Roads shall be graded to be crowned in the center and graded to drain.

3. A written and detailed construction schedule will be required prior to beginning work.

4. A portable toilet and toilet maintenance…