Attachment J3.pdf

AG-52KY-10-S-0002

ATTACHMENT J-3

HONEY CREEK PART C – PHASE 2A

WATERSHED PROTECTION AND FLOOD PREVENTION THROUGH ARRA

VIGO COUNTY, INDIANA

SPECIFICATIONS

COVERING CONSTRUCTION OF THE PROPOSED WORKS IN HONEY CREEK

TOWNSHIP, EXTENDING FROM 7TH STREET TO US 41 ALONG THOMPSON DITCH ON

THE SOUTH SIDE OF TERRE HAUTE, IN VIGO COUNTY, INDIANA.

The work will consist of construction activities on both the north and south sides of Thompson Ditch between Seventh Street and US41 and will include the construction of approximately 5,000 lineal feet of compacted earth dike with fill heights up to seven (7) feet. The major items of work include approximately 45,740 CY of common excavation, 36,890 CY of compacted earthfill, removal of or furnish and installation of thirteen (13) drainage structures ranging in size from 12 inches to 48 inches including corrugated polyethylene smooth interior dual wall pipe, drain basins, flared end sections, aluminum flap gates and concrete headwalls, placement of 166 tons of revetment riprap and seeding of approximately 17 acres.

A borrow source is provided. The contractor is responsible for disposal of unsuitable earthen material, sod, all cleared material including stumps, and other excavated materials including woody debris, asphalt, pipes, concrete, and other foreign materials, etc. The larger non-utility structures to be removed by the contractor include a pole barn and a garage. The construction contract also includes performance of contractor quality control, furnishing a field office and construction survey for layout, control and measurement of the work.

Specifications referred to herein shall form a part of these specifications and the Contractor should exercise special care to refer to them in requests for quotations, in orders, and in subcontracts. Materials so specified shall conform to the technical requirements of the respective specifications referred to.

Prepared by:

Engineering Staff

Natural Resources Conservation Service

NRCS – Honey Creek Part C – Phase 2A 11/04 Vigo County, Indiana Revised 04/2010

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INDEX OF CONSTRUCTION AND MATERIAL SPECIFICATIONS

No. Construction Specification No. Material Specification

2 Clearing and Grubbing

3 Structure Removal

5 Pollution Control

6 Seeding, Sprigging, and Mulching

7 Construction Surveys

8 Mobilization and Demobilization

9 Traffic Control

10 Water for Construction

11 Removal of Water

21 Excavation

23 Earthfill

26 Topsoiling

32 Structure Concrete

34 Steel Reinforcement

44 Corrugated Polyethylene Tubing

61 Rock Riprap

71 Water Control Gates

94 Contractor Quality Control

95 Geotextile

96 Field Office

521 Aggregates for Drainfill & Filters

522 Aggregates for Portland Cement Concrete

523 Rock for Riprap

531 Portland Cement

532 Supplementary Cementitious Materials

533 Chemical Admixtures for Concrete

534 Curing Compound (for Concrete)

539 Steel Reinforcement (for Concrete)

548 Corrugated Polyethylene Tubing

592 Geotextile

(210-VI-NEH, May 2001)

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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.

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.

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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:

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.

NRCS – Honey Creek Part C – Phase 2A April 2010 Vigo County, Indiana

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7. 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 and Grubbing

(1) This Item shall consist of clearing and grubbing the following areas:

a. Locations where excavation of fill is required.

b. Locations where structural improvements are to be installed.

c. Locations of maintenance travel ways including the area extending twelve (12) feet measured perpendicular from the final toe of the dike, borrow areas, and disposal areas.

(2) Clearing and grubbing shall proceed with construction and shall not be done in advance of short term needs. After clearing and grubbing an area construction shall proceed expeditiously to completion in that area.

(3) No open burning will be permitted in violation of state law.

(4) Piling of cleared and grubbed material will be permitted on a temporary basis only prior to disposal.

(5) Disposal of cleared and grubbed materials including surface objects, trees, stumps, roots, and other protruding obstructions not designated to remain is the responsibility of the contractor. All costs associated with off-site disposal shall be included in the contract price of pay items.

(6) Measurement and payment shall be by Method 4.

(7) Items subsidiary to this bid item are:

Construction Specification 3 –Structure Removal

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Construction Specification 3—Structure Removal

1. Scope The work shall consist of the removal, salvage, and disposal of structures (including fences) from the designated areas.

2. Marking Method 1—Each structure or structure part to be removed will be marked with stakes, flags, paint, or other suitable method.

Method 2—The area boundaries from which structures must be removed will be marked using stakes, flags, paint, or other suitable method. Structures to remain undisturbed or to be salvaged will be designated by special markings.

3. Removal Method 1—All structures designated for removal in the contract shall be removed to the specified extent and depth.

Method 2—Within the areas so marked, all visible and buried structures identified shall be removed to the specified extent and depth.

4. Salvage Structures or structure parts that are designated to be salvaged shall be carefully removed and neatly placed in the specified or approved storage location. Salvaged structures that are capable of being disassembled shall be dismantled into individual members or sections. Such structures shall be neatly and systematically match marked with paint before disassembly. All connectors and other parts shall be marked to indicate their proper location within the structure and shall be fastened to the appropriate structural member or packed in suitable containers.

Material from fences designated to be salvaged shall be placed outside the work area on the property on which the fence was originally located. Fence wire shall be rolled into uniform rolls of suitable size and neatly piled with other salvaged materials. Posts and rails shall be neatly stacked.

5. Disposal of refuse materials Refuse materials resulting from structure removal shall be disposed of in a manner and at locations specified in section 7 of this specification or in an acceptable manner and at locations approved by the contracting officer. Disposal by burning shall be in accordance with local rules and regulations.

6. Measurement and payment Method 1—For items of work for which specific unit prices are established by the contract, payment for the removal of each structure unit, except fences, is made at the contract unit price.

Fences removed or removed and salvaged are measured to the nearest linear foot. Payment for fence removal or removal and salvage is made at the contract unit prices for each type and size of fence.

Such payment will 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 completion of the work.

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Method 2—For items of work for which specific lump sum prices are established by the contract, payment for structure removal is made at the contract lump sum price.

Such payment will 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 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 as a contract line item number 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 are made subsidiary are identified in section 7 of this specification.

Vigo County, Indiana

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a. Subsidiary Item – Structure Removal

(1) This item shall consist of furnishing all the necessary equipment, supplies, and labor needed for removal and disposal of all obstructions encountered in the performance of the work required under this contract. Obstructions include, but are not limited to, culverts, headwalls, catch basins, fences, cut off steel pipes encased in concrete, dead end road barriers, signs and posts, abandoned utility poles, other abandoned utilities or structures, road surfacing, and other debris.

(2) Marking shall be by Method 2.

(3) Removal shall be by Method 2.

(4) Obstructions shall be removed or grubbed to the depths indicated in Construction Specification 2 – Clearing and Grubbing unless otherwise indicated. Voids created by structural removal shall be backfilled with structure backfill as specified in Construction Specification 23 – Structure Earthfill Class A.

(5) Where part of a pipe structure is removed for relocation or restoration, care shall be taken not to damage any portion of the structure that is to remain in place and may be reconnected to a newly installed structure.

(6) Materials obtained during structure removal shall become the property of the contractor and shall be removed from the site, or otherwise disposed of as approved by the engineer.

(7) No separate payment will be made for Structure Removal. Compensation for this Item will be included in the bid item for which it is subsidiary:

Bid Item 1 – Clearing and Grubbing

Bid Items 12-24 and 44-46 – Corrugated Polyethylene Tubing

b. Bid Item 43 – Non-Utility Structure Removal

(1) This item shall consist of furnishing all the necessary equipment, supplies, and labor needed for removal and disposal of all structures listed in the “Non-Utility Structures to be Removed by the Contractor” table shown on the drawings. These non-utility obstructions include yard barns, a garage, a pole barn and any associated foundations or slabs.

(2) Marking shall be by Method 2.

(3) Removal shall be by Method 2.

(4) Obstructions shall be removed or grubbed to the depths indicated in Construction Specification 2 – Clearing and Grubbing unless otherwise indicated. Voids created by structural removal shall be backfilled with structure backfill as specified in Construction Specification 23 – Structure Earthfill Class A.

(5) Materials obtained during structure removal shall become the property of the contractor and shall be removed from the site, or otherwise disposed of as approved by the engineer.

(6) Payment shall be by Method 2.

(210-VI-NEH, January 2009)

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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.

2. Material All 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 sediment fences trap sediment from areas of limited runoff. Sediment filters shall be properly anchored to prevent erosion under or around them. 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.

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.

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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 specific ally 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.

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.

Vigo County, Indiana

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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. Subsidiary Item – Pollution Control

(1) This item shall consist of performing all the work and furnishing all materials required for pollution control on the job site, including erosion and sediment control, chemical pollution control, and air pollution control. The Contracting Officer will provide an approved Erosion Control Plan to the Contractor. It is the responsibility of the contractor to comply with the guidelines and requirements set forth in the erosion control plan.

(2) All erosion and sediment control measures are to be in place prior to, or as the first step in clearing, grading, or other land disturbance. To the extent practicable, the contractor shall minimize the area disturbed by scheduling operations to utilize the smallest incremental area(s) of disturbance necessary. Reclamation and stabilization shall follow disturbance as soon as possible. Construction shall be sequenced so that the unprotected cumulative total length disturbed for levee and wall construction shall be no greater than 3,000 feet.

Protection is defined as permanent seeding or temporary mulching as described in and required by Construction Specification 6 – Seeding, Sprigging, and Mulching. Cumulative total length shall be measured along the planned centerline(s) of the structures. Borrow and stockpile areas, and areas used only for haulage route(s) are not included in the cumulative total length.

(3) To the extent practicable, excavated fill material that is suitable for use in dike construction or floodwall backfill shall be directly placed in the dike or floodwall backfill, or stockpiled within the disturbed construction area as near as possible to an area where it will be used.

(4) The contractor shall maintain a clean and sanitary work site at all times. The Contractor shall inspect all erosion control measures and perform all needed maintenance on a daily basis.

(5) Care shall be taken in the fueling and maintenance of equipment. Storage of fuel, lubricants, and other materials shall be in accordance with applicable Federal, state, and local laws and regulations.

(6) Permanent seeding or temporary mulching shall be applied to disturbed areas within seven days after final grade is reached on any portion of the site. Disturbed areas that will not be to final grade or are not being used for operations for more than 2 weeks shall be temporarily mulched. Permanent seeding and mulching shall be completed in accordance with the methods specified in Construction Specification 6 – Seeding, Sprigging, and Mulching.

(7) Any water discharged shall be filtered or diverted into sedimentation structures. All discharges shall be in compliance with applicable rules and regulations.

Vigo County, Indiana

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(8) Haulage routes and other disturbed areas shall be kept moist or treated to minimize fugitive dust emissions. Haul routes shall be located such that existing vegetation acts as filter strips where practical.

(9) The Contractor shall prevent sediment from leaving the work site by implementing erosion control measures outlined in the Erosion Control Plan. Such measures include but are not limited to, constructing permanent/temporary construction entrances, surface inlet protection, temporarily installing silt fence, straw bale diversions, dikes, check dams, silt traps and other measures approved by the Contracting Officer.

(10) Silt fence shall meet the following:

Minimum Tensile Strength (ASTM D-1682) 120 lbs Minimum Burst Strength (ASTM D-1117) 200 psi Ultraviolet Exposure Strength Retention 50% or less

The fabric shall be a minimum of 36 inches in width. The stored fabric shall be wrapped in a heavy duty protective covering to protect it from direct sunlight, dirt, and other debris.

(11) Silt fence shall be installed in a 6-inch trench on the contour. The trench shall be backfilled with soil and tamped. Hardwood posts or equivalent shall be driven on the downhill side of the fabric spaced not more than 10-feet apart. Fabric installation shall be in accordance with manufacturers recommendations.

Silt fence shall be installed prior to stripping or excavation activities.

Silt fence shall be placed along the ditch side of the construction area on both the north and south sides of Thompson Ditch for an estimated quantity of approximately 10,000 lineal feet (5,000 lineal feet on each side).

Silt fence shall be removed and the area restored to pre-existing grade upon protection or establishment of contributing drainage area vegetation as determined by the engineer and prior to determination of job completion.

(12) No separate payment will be made for Pollution Control. Compensation for this Item will be included in the bid item for which it is subsidiary:

Bid Item 7 – Dike Excavation

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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.

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

Seed shall be labeled in accordance with the state laws and the 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 will be accepted with a test date of more than 9 months before the delivery date 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 shall be as defined in the current State laws relating to agricultural seeds. Each type of seed shall be delivered in separate sealed containers and fully tagged unless exception is granted in writing by the contracting officer.

Fertilizer—Unless otherwise specified, the fertilizer shall be a commercial grade fertilizer. It shall meet the standard for grade and quality specified by State law. Where fertilizer is furnished from bulk storage, the contractor shall furnish a supplier's certification of analysis and weight.

When required by the contract, a representative sample of the fertilizer shall be furnished to the contracting officer for chemical analysis.

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

Lime and other soil amendments—Lime shall 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 shall meet quality criteria and application requirements specified in section 7.

Mulch tackifiers—Asphalt emulsion tackifiers shall conform to the requirements of ASTM D 977, Specification for Emulsified Asphalt. The emulsified asphalt may be rapid setting, medium setting, or slow setting. Nonasphaltic tackifiers required because of environmental considerations shall be as specified in section 7.

Straw mulch material—Straw mulch shall 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 shall be air-dry, reasonably light in color, and shall not be musty, moldy, caked, or otherwise of low

6-2 quality. The use of mulch that contains noxious weeds is not permitted. The contractor shall 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, are other mulching materials that 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 shall be as shown on the plans or as specified in section 7.

4. Seedbed preparation and treatment Areas to be treated shall be dressed to a smooth, firm surface. On sites where equipment can operate on slopes safely, the seedbed shall 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 shall 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 shall be removed or disposed of as specified in section 7.

Seedbed preparation shall be discontinued when soil moisture conditions are not suitable for the preparation of a satisfactory seedbed as determined by the contracting officer's technical representative (COTR).

5. Seeding, sprigging, fertilizing, mulching, and stabilizing All seeding or sprigging operations shall 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 shall be as specified in section 7. Unless otherwise specified, seeding or sprigging shall be accomplished within 2 days after final grading is completed and approved.

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

The rate, amount, and kind of mulching or mesh shall be as specified in section 7. Mulches shall be applied uniformly to the designated areas. They shall be applied to areas seeded not later than 2 working days after seeding has been performed. Straw mulch material shall 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 shall 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 shall be operated on the contour. Hand methods shall be used where equipment cannot safely operate to perform the work required.

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

The contractor shall maintain the mesh or netting areas until all work under the contract has been completed and accepted. Maintenance shall consist of the repair of areas damaged by water erosion, wind, fire, or other causes. Such areas shall be repaired to reestablish the intended condition and to the design lines and grades required by the contract. The areas shall 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 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 will constitute 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 will be determined as specified in section 7. Payment of the lump sum contract price 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 item(s) to which they are made subsidiary are identified in section 7.

Vigo County, Indiana

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a. Fertilizer

Fertilizer shall be applied at the following minimum rates per acre of each chemical component:

Nitrogen (N) 120 pounds

Phosphorus (P) 120 pounds

Potash (K20) 120 pounds

The required application may be met by applying 500 pounds per acre of fertilizer having an analysis of 12-12-12.

b. Lime

Limestone shall meet the requirements of the applicable state laws. The limestone shall be uniformly applied at a rate of three (3) tons per acre just prior to or during the preparation of the seedbed.

c. Seed

Seed tags showing germination and purity shall be attached to all bags. No pre-mixed seed shall be used unless the following conditions are met:

1. The purity and germination for each kind of seed specified on the tag for each lot of seed.

2. The total weight and number of pounds of each kind of seed is specified on the tag for each lot of seed.

3. The inoculant, when required, is added on the job site.

4. The quantity of pre-mixed seed shall be specific for the area to be seeded. No partial bags shall be used.

The following rates of pure live seed per acre shall be applied:

Dikes ,berms, stream channel banks

Tall Fescue – Low Endophyte 40 lbs.

Lawn areas

Kentucky Bluegrass - Poe Pratensis 20 lbs.

Creeping Red Fescue - Frestuca Rubra 20 lbs

Borrow and other disturbed areas

Ladino Clover - Trifolium Repens (I) 1 lb.

Red Clover - Trifolium Protense (I) 6 lbs.

Orchard Grass - Dactylis Glomerata 6 lbs.

(I) requires inoculation

Vigo County, Indiana

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d. Application

1. Liquid or dry fertilizer may be used. Dry fertilizer shall be incorporated into the seedbed.

2. Seed shall be evenly distributed and not placed deeper than one-half (1/2) inch in to the soil.

3. Lawn areas adjacent to homes shall be seeded and mulched at the specified rates using hand or similar methods as approved by the engineer.

4. On areas not accessible to field machinery, seed shall be uniformly sown after the fertilizer application using a hand operated cyclone seeder or horn seeder. The seed shall be covered with a hand rake or other similar hand tool.

5. On areas accessible to field machinery, seed may be sown with a hydraulic seeder, grain drill, broadcast-type seeder, or end gate seeder.

When the seeder is not equipped with a cultipacker rollers, the final operation after all grass and legume seed has been seeded with field machinery, including hydraulic seeder, shall be to cover the seed and firm the seedbed with a cultipacker.

When a grain drill is used, the grass-legume attachment shall be used for legumes and small seeded grasses, and the fertilizer box for the large, light seeded grasses. Grass and legume seed tubes shall be removed from the downspouts of the grain drill and the seed dropped directly on the ground surface.

When a broadcast type seeder is used, it shall consist of a box hopper equipped with an agitator to drop the seed uniformly and from a height not to exceed 18 inches above the ground surface.

When an end gate seeder is used, it shall be mounted on a tractor and have a mechanism for calibrating seeding rates. End gate seeders mounted on wagons or carts shall not be used.

All seeding or seed-covering operations performed with field machinery shall be performed on the contour or across the general slope.

e. Mulching

1. Mulch shall be applied to all seeded areas.

2. Mulch shall be straw.

3. Mulch shall be uniformly applied at a rate of 2 tons per acre and anchored using one of the following methods:

Method 1 - The mulch shall be anchored by the use of a mulching anchoring tool. The tool shall be operated over the mulch as nearly on the contour as possible. A conventional farm disc will not be acceptable as an anchoring tool.

Method 2 - The mulch shall be anchored with Liquid Asphalt RC-70 or Emulsified Asphalt AE-90T. The bituminous material may be applied as a film immediately after the mulch has been placed or injected into the flow of mulch as it leaves a power-driven mulch spreader. The material shall be applied at a minimum rate of 100 gallons per ton of mulch material.

Vigo County, Indiana

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Method 3 - The mulch shall be anchored with stakes and string. Ten inch stakes shall be driven 8 inches into the ground at 4 foot spacings in a square pattern. String will be stretched over the mulch in both a square and crisscross pattern and secured to the stakes.

4. Weight tickets shall be furnished for all mulch materials applied.

5. Disturbed areas not final graded and left barren for two weeks or more shall be temporarily mulched at a rate of 2 tons per acre.

f. Seeding Dates

1. Individual areas that can be made ready to seed during a seeding period listed herein, shall be prepared and seeded at the earliest seeding period.

2. Between March 1 and May 10 inclusive and between August 10 and September 30 inclusive, disturbed areas shall be limed, fertilized, seeded, and mulched within 2 days after final grading has been completed and as soil-moisture-weather conditions permit.

3. Between October 1 and February 28, disturbed areas shall be limed, fertilized, and mulched within 2 days after final grading has been completed. Seed shall be applied between December 10 and February 28, as weather conditions permit.

4. Between May 10 and August 10, disturbed areas shall be limed, fertilized, and mulched with 2 days after final grading has been completed. Seed shall be drilled into the seedbed as soon as soil moisture/weather conditions permit after August 10. The drill shall be a “no-till” type drill capable of planting the seed through the straw mulch.

5. Between October 1 and February 28, disturbed areas not final graded and left barren for two weeks or more shall be temporarily mulched at a rate of 2 tons per acre.

g. Bid Item 2 – Seeding, Sprigging, and Mulching

(1) This item shall include seeding, fertilizing, and both permanent and temporary mulching of all disturbed areas within the work limits shown on the drawings.

(2) Measurement and payment shall be by Method 1.

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Construction Specification 7—Construction Surveys

1. Scope The work consists of performing all surveys, measurements, and computations required by this specification.

2. Equipment and material Equipment for construction surveys shall be of a quality and condition to provide the required accuracy. The equipment shall be maintained in good working order and in proper adjustment at all times. Records of repairs, calibration tests, accuracy checks, and adjustments shall be maintained and be available for inspection by the engineer. Equipment shall be checked, tested, and adjusted as necessary in conformance with manufacturer's recommendations.

Material is field notebooks, stakes, templates, platforms, equipment, spikes, steel pins, tools, and all other items necessary to perform the work specified.

3. Quality of work All work shall follow recognized professional practice and the standards of the industry unless otherwise specified in section 9 of this specification. The work shall be performed to the accuracy and detail appropriate for the type of job. Notes, sketches, and other data shall be complete, recorded neatly, legible, reproducible and organized to facilitate ease in review and allow reproduction of copies for job documentation. Survey equipment that requires little or no manual recording of field data shall have survey information documented as outlined in section 9 of this specification.

All computations shall be mathematically correct and shall include information to identify the bid item, date, and who performed, checked, and approved the computations. Computations shall be legible, complete, and clearly document the source of all information used including assumptions and measurements collected.

If a computer program is used to perform the computations, the contractor shall provide the engineer with the software identification, vendor's name, version number, and other pertinent data before beginning survey activities. Computer generated computations shall show all input data including values assigned and assumptions made.

The elevations of permanent and temporary bench marks shall be determined and recorded to the nearest 0.01 foot. Differential leveling and transit traverses shall be of such precision that the error of vertical closure in feet shall not exceed plus or minus 0.1 times the square root of the traverse distance in miles. Linear measurements shall be accurate to within 1 foot in 5,000 feet, unless otherwise specified in section 9 of this specification. The angular error of closure for transit traverses shall not exceed 1 minute times the square root of the number of angles turned.

The minimum requirements for placing slope stakes shall be at 100-foot stations for tangents, as little as 25 feet for sharp curves, breaks in the original ground surface and at any other intermediate stations necessary to ensure accurate location for construction layout and measurement. Slope stakes and cross sections shall be perpendicular to the centerline.

Significant breaks in grade shall be determined for cross sections. Distances shall be measured horizontally and recorded to the nearest 0.1 foot. Side shots for interim construction stakes may be taken with a hand level.

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Unless otherwise specified in section 9 of this specification, measurements for stationing and establishing the location of structures shall be made to the nearest 0.1 foot.

Elevations for concrete work, pipes, and mechanical equipment shall be determined and recorded to the nearest 0.01 foot. Elevations for earth work shall be determined and recorded to the nearest

0.1 foot.

4. Primary control The baselines and bench marks for primary control, necessary to establish lines and grades needed for construction are shown on the drawings and have been located on the job site.

These baselines and bench marks shall be used as the origin of all surveys, layouts, and measurements to establish construction lines and grades. The contractor shall take all necessary precautions to prevent the loss or damage of primary control points. Any stakes or control points lost or damaged by construction activity will be reestablished by the contractor or at contractor expense.

5. Construction surveys Before work starts that requires contractor performed surveys, the contractor shall submit in writing for the engineer's review: the name, qualifications, and experience of the individuals to be assigned to the survey tasks.

Method 1—Contractor performed surveys shall include:

• checking and any supplemental or interim staking

• performing quantity surveys, measurements, and computations for progress payment

• other surveys as described in section 9 of this specification

Method 2—Contractor performed surveys shall consist of all work necessary for:

• establishing line and grade for all work

• setting slope stakes for all work

• checking and any supplemental or interim staking

• establishing final grade stakes

• performing quantity surveys, measurements, and computations for progress payment

• other surveys as described in section 9 of this specification

Method 3—Contractor performed surveys shall consist of all work necessary for:

• establishing line and grade for all work

• setting slope stakes for all work

• checking and any supplemental or interim staking

• establishing final grade stakes

• performing quantity surveys, measurements, and computations for progress payments

• performing original (initial) and final surveys for determinations of final quantities

• other surveys as described in section 9 of this specification.

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6. Staking The construction staking required for the item shall be completed before work on any item starts. Construction staking shall be completed as follows or as otherwise specified in section 9 of this specification:

Clearing and grubbing—The boundary of the area(s) to be cleared and grubbed shall be staked or flagged at a maximum interval of 200 feet, closer if needed, to clearly mark the limits of work. When contractor staking is the basis for determining the area for final payment, all boundary stakes will be reviewed by the engineer before start of this work item.

Excavation and fill—Slope stakes shall be placed at the intersection of the specified slopes and ground line. Slope stakes and the reference stakes for slopes shall be marked with the stationing, required cut or fill, slope ratio, and horizontal distance from the centerline or other control line. The minimum requirements for placing slope stakes is outlined in section 3, Quality of work.

Structures—Centerline and offset reference line stakes for location, alignment, and elevation shall be placed for all structures.

7. Records All survey data shall be recorded in fully identified standard hard-bound engineering survey field notebooks with consecutively numbered pages. All field notes and printed data shall include the purpose or description of the work, the date the work was performed, weather data, sketches, and the personnel who performed and checked the work. Electronically generated survey data and computations shall be bound, page numbered, and cross referenced in a bound field notebook containing the index for all survey activities.