Specifications.pdf

B&B LC WRP Site Page 1

PROJECT SPECIFICTIONS FOR

B&B LC WRP SITE

NATURAL RESOURCES CONSERVATION SERVICE

JEFFERSON COUNTY, WI

CONTENTS AND PROJECT MANUAL INDEX

DESCRIPTION # OF PAGES

Title Page 1 Contents and Project Specifications Index 1

PROJECT SPECIFICATIONS

Section 0.01 – Work Restrictions and Provisions 4 Section 0.02 – Special Procedures 4 Section 0.03 – Seeding 4

NRCS WISCONSIN CONSTRUCTION SPECIFICATIONS

Section 1 – Clearing 2 Section 2 – Excavation 2 Section 3 – Earthfill 4 Section 6 – Corrugated Metal Pipe Conduits 2 Section 7 - Mobilization and Demobilization 1 Section 26 – Topsoil 2

NOTE: Where it is used throughout these plans and specifications, the term COTR shall mean Contracting Officer’s Technical Representative.

NOTE: Where the term Technician is used throughout these plans and specifications, this term shall mean Contracting Officer’s Technical Representative (COTR)

0.01 WORK RESTRICTIONS AND PROVISIONS

PART 1 GENERAL

1.01 APPLICABLE PUBLICATIONS

A. The following publications of the issues listed below, but referred to thereafter by basic designation only, form a part of this specification to the extent indicated by the reference thereto.

1. Manual on Uniform Traffic Control Devices (MUTCD) for Streets and

Highways, current edition. (available online at http://mutcd.fhwa.dot.gov/)

2. USDA – NRCS Wisconsin Section IV Technical Guide – Wisconsin

Construction Specifications. (Available online at http://www.wi.nrcs.usda.gov/technical/)

PART 2 PRODUCTS AND MATERIALS (N/A)

PART 3 CONSTRUCTION METHODS

3.01 EXAMINATIONS

A. Contractor shall obtain complete data at the site and inspect surfaces that are to receive the work before proceeding with assembling, fitting or erecting his work under this contract. The Contractor shall notify the Contracting Officer (CO) in writing in the case of discrepancies between existing work and drawings, and of any defects in surfaces that are to receive the Contractor’s work. The CO will provide the remedy of applicable surfaces.

B. Information pertaining to existing conditions that appear on the drawings is based on available records. While such data has been collected with reasonable care, there is no expressed or implied guarantee that conditions so indicated are entirely representative of those actually existing or that unexpected developments may not occur. All data included was provided to assist the Contractor in the investigation of conditions. The Contractor is responsible for the interpretation of the data provided.

C. The Contractor shall become acquainted with the location of underground service, utilities, structures, etc., which may be encountered or be affected by the Contractor’s work, and shall be responsible for any damage caused by neglect to provide proper precautions or protection.

D. Utility Locations.

E. Contractor shall verify grades, lines, levels, locations, and dimensions as shown on drawings and report any errors or inconsistencies to the Contracting Officer’s Technical Representative (COTR) before commencing work. Starting of work by the Contractor shall imply acceptance of existing conditions.

Contractor shall be responsible for locating and verifying all utilities on the project and also all relocations where necessary. Typically the utilities require the request for locate be made a minimum of three working days before the Contractor begins work in the area. The utilities shown on the contract drawings are approximate in location, depth, number, and type.

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3.02 STORAGE AND HANDLING

A. Contractor or the Contractor’s authorized representative must be present to accept delivery of all equipment and material shipments.

B. No material or equipment shall be removed from the construction site without the approval of the CO.

C. Contractor shall confine all operations, equipment, apparatus, and storage of materials to the immediate area of work to the greatest possible extent. Contractor shall ascertain, observe, and comply with all rules and regulations in effect on the project site, including, but not limited to parking and traffic regulations, use of walks, security restrictions and hours of allowable ingress and egress.

D. The storage of materials on the site shall be in the staging area.

1. All materials affected by moisture shall be stored on platforms and protected from the weather in accordance with manufacturer recommendations.

2. Should it be necessary at any time to move material storage platforms, the

Contractors shall move same at the Contractor’s expense.

3. Areas used for storage of materials shall be repaired and restored by the

Contractor.

E. The Contractor shall assume full responsibility for damage due to the storage of materials.

F. During the construction of this project, materials, storage areas, and earth stockpiles shall be located so as not to interfere with the installation of the utilities nor cause damage to existing structures or utilities.

3.03 WORK RESTRICTIONS AND PROVISIONS

A. Notification.

B. Removal and replacement of work applied to defective surfaces, in order to correct defects, shall be done at the expense of the Contractor who applied work to defective surfaces.

The Contractor shall notify the COTR 24 hours in advance of beginning work. Notice must also be given to the COTR for each subsequent day the Contractor will be working.

C. Access to Work.

D.

Representatives of the Natural Resources Conservation Service (NRCS) shall have access to the work and on-site records at all times.

Project Log.

E. Existing pipes, electrical work, and all other utilities encountered, which may interfere with new work, shall be rerouted, capped, cut off, or replaced by the Contractor.

A project log shall be maintained showing daily progress of work. The Contracting Officer and COTR shall have access to this logbook and the project schedule at all times.

F. Dust and Noise. Contractor shall make an effort to keep dust and noise to a minimum during construction. The dispersion of dust from construction related activities shall, until acceptance of work, be minimized by the application of water.

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G. Contractor shall confine equipment, apparatus, storage of materials and operations to the staging area and shall not bring material onto the site until they are needed for the progress of the work.

H. Cleaning.

1. Remove rubbish, debris, and scrap promptly upon its accumulation and in no event later than the end of each week.

Contractor shall be responsible for all cleaning required within the technical sections of the specifications governing work under the Contractor’s jurisdiction as well as for keeping all work areas, passageways, and all other areas of the premises free of rubbish, debris and scrap which may be caused by the Contractor’s operations or that of the Subcontractors.

2. Combustible waste shall be removed immediately or stored in fire resistive containers until disposed of in an approved manner.

3. Spillage of oil, grease, or other liquids which could cause a slippery or otherwise hazardous situation or stain a finished surface, shall be cleaned up immediately.

4. Dust, dirt, and other foreign matter shall be removed completely from all internal surfaces of all mechanical and electrical units, cabinets, ducts, pipes, etc.

5. Dirt, soil, fingerprints, stains and the like, shall be completely removed from all exposed finished surfaces.

6. If rubbish and debris is not removed, or surfaces cleaned as specified above, NRCS reserves the right to have said work done by others and the related cost(s) will be deducted from monies due the Contractor.

I. Disposal of Demolished Materials.

3.04 OPERATION AND PROTECTION

Remove from the site all debris, rubbish, and other materials resulting from demolition operations. Storage of removed materials will not be permitted on the site. If burning is allowed, the Contractor shall obtain all required permits.

A. Traffic Control.

B. All structures and equipment shall be constructed, installed, and operated with guards, controls, and other devices in place.

The Contractor shall meet the requirements for traffic control in accordance with the Manual on Uniform Traffic Control Devices.

C. Construction Staking.

D. The Contractor shall provide protection as follows:

The NRCS will supply all line and grade staking necessary for construction. The Contractor shall be responsible for replacement of any stakes negligently disturbed.

1. Protection.

2. Provide, erect, and maintain all required barricades, guard rails, temporary walkways, etc., of sufficient size and strength necessary for protection of stored material and equipment; adjacent to or within project area; adjoining property and the building(s) as well as to prevent accidents to the public and the workmen at the job site.

The Contractor shall provide and maintain proper barricades, fences, signal lights, or watchmen to properly protect the work, persons, animal and property against injury. The cost of protection shall be incidental to the contract and no extra payment will be allowed.

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3. Provide and maintain proper shoring and bracing for existing underground utilities encountered during excavation work, to protect them from collapse or other type of damage until such time as they are to be removed, incorporated into the new work, or can be properly backfilled upon completion of new work.

4. Provide protection against rain, snow, wind, ice, storms or heat so as to maintain all work, materials, apparatus, and fixtures, incorporated in the work or stored on the site, free from injury or damage. At the end of the day’s work, cover all new work likely to be damaged. Remove snow and ice as necessary for safety and proper execution of the work.

5. Protect the building and foundations from damage at all times from rain and groundwater. Provide all equipment and enclosures as necessary to provide this protection.

6. Protect materials, work, and equipment, not normally covered by above protection, until construction proceeds to a point where the general building protection of the area where located, dispenses with the necessity therefore.

Protect work outside of the building lines such as trenches and open excavations, as specified above.

7. Take any and all necessary precautions to protect the site as well as adjacent property, including trees, shrubs, buildings, sanitary sewers, water piping, gas piping, electric conduit or cable, etc., from any and all damage which may result due to work on this project.

8. Repair work outside of property line in accordance with the requirements of the authority having jurisdiction.

9. Repair any work damaged by failure to provide proper and adequate protection to its original state.

10. Tree Protection.

11. All survey monuments, property stakes, etc., which are encountered during the construction are to be preserved and undisturbed. The COTR shall be notified of all such items immediately upon discovery. Failure to preserve such monuments will not be allowed and replacement shall be at the Contractor’s expense.

Trees shall be protected from damage and scarring. Do not injure trunks, branches, or roots of trees that are to remain. No trees shall be removed without the approval of the COTR. Tree branches in the way of construction operations shall be carefully pruned prior to construction. Do cutting and trimming only as approved by the COTR. Do not operate equipment or vehicles within the dripline of a tree to be preserved. Any roots exposed during construction shall be cut clean. Ripping of the roots with excavation equipment shall not be allowed.

END OF SECTION

0.02 SPECIAL PROCEDURES

CONTENTS: Work under this section is intended to supplement and/or modify the individual specifications. This section does not relieve the Contractor from fulfilling all items in said sections. The numbers of this section are referenced to those of USDA – NRCS – Wisconsin Section IV Technical Guide Wisconsin Construction Specifications.

The Special Procedures items will supplement or supersede the standard specifications. The number preceding special provisions refers to standard specifications that are being referenced.

PERMITS

The Contractor shall comply in all ways with the requirements of the WDNR Chapter 30 Water Quality Certification permit obtained by NRCS, a copy of which will be provided to the contractor.

DEMOLITION AND REMOVALS

Description of Work

The removal of an existing culvert will be necessary to facilitate installation of a new culvert at Sta 201+75, Alignment B.

The work shall include demolition of above and below grade structures and the removal from the site and legal disposal of the debris. The work shall also include any temporary shoring or bracing; and necessary pollution controls. The Contractor shall be responsible for compliance with all applicable rules, regulations and codes regarding safety and environmental protection.

All structures shall be removed to a depth of not less than 24-inches below the existing ground surface or the planned subgrade, whichever is lower.

Measurement and Payment

Demolition and Removals shall not be measured for payment but shall be incidental to the associated pay items.

TILE EXPLORATION

Description of Work

Tile Exploration shall be conducted to a depth of 5-feet.

Measurement and Payment

Tile Exploration shall be measured to the nearest lineal foot and paid for at the contract unit price per lineal foot of Tile Exploration.

TILE REMOVAL

Description of Work

Tile Removal shall be performed to the typical lengths shown for each area of the site.

All tile shall be deposited in the trench prior to backfilling or removed from the site. No tile shall be left upon the ground surface.

Measurement and Payment

Tile Removal shall be measured to the nearest lineal foot and paid for at the contract unit price per lineal foot of Tile Removal.

SITE EROSION CONTROL

Description of Work

Site Erosion Control shall include the installation, maintenance, and removal of erosion control measures shown on the plans.

Stone Tracking Pad shall be established and maintained in accordance with WDNR Conservation Practice Standard 1057 (available online at http://dnr.wi.gov/runoff/stormwater/techstds.htm) The aggregate for stone tracking pad shall be 3- to 6-inch clear or washed stone. All material shall be retained on a 3—inch sieve.

At the end of construction, the stone tracking pad will be surfaced and trimmed with crushed limestone meeting the requirements for ¾-inch Base Aggregate Dense per sections 300 and 305 of WisDOT’s Standard Specifications for Highway and Structure Construction.

Measurement and Payment

Site Erosion Control shall be paid for at the contract lump sum price for Site Erosion Control.

EROSION CONTROL MAT

Description of Work

The work shall include the installation of Erosion Control Mat of the type and class specified to meet the manufacturer’s recommendations and the requirements set forth in WDNR’s Conservation Practice Standards 1052 and 1053.

Measurement and Payment

Erosion Control Mat will be measured to the nearest square yard in place and paid for at the contract unit price for Erosion Control Mat of the class and type specified.

WISCONSIN CONSTRUCTION SPECIFICATIONS

SECTION 1 CLEARING

Measurement and Payment

Clearing and grubbing shall not be measured for payment but shall be incidental to Common Excavation.

SECTION 2 EXCAVATION

Measurement and Payment

The plan quantity for common excavation was calculated using Eagle Point software to measure Ditch A Excavation, Berm A Fill, Ditch C Excavation, and Ditch Plug Fill. No shrink or swell allowances were used. Wetland scrape areas shown on the plans were sized using an average depth of 18-inches to generate enough spoil to construct the ditch plugs to the dimensions indicated.

Common Excavation shall be paid for at the contract lump sum price for Common Excavation. Changes to the plan quantity shall not be made unless the scope of work changes. The contractor shall be responsible to make their own calculations of excavation quantities.

Payment shall include all labor, materials, equipment, and tools necessary to: clear and grub from the ditch plug, ditch grading and wetland scrape areas; strip and stockpile topsoil; excavate ditches and wetland scrape areas; construct ditch plugs and Berm A;

finish grade Ditch A, Berm A, and Ditch C; and respread topsoil.

SECTION 3 EARTHFILL

Measurement and Payment

Earthfill shall not be measured for payment but shall be incidental to Common Excavation.

SECTION 6 CORRUGATED METAL PIPE CONDUITS

Corrugated Metal Pipe shall be minimum 14 gauge for 30-inch CMP culvert.

Measurement and Payment

Corrugated Metal Pipe Conduits shall be measured by the lineal foot installed and paid for at the contract price per lineal foot of CMP Culvert of the size specified. Payment shall include all labor, materials, equipment, and tools necessary to perform excavation, remove existing culvert where necessary, pipe installation, bedding, and backfill.

SECTION 7 MOBILIZATION AND DEMOBILIZATION

Measurement and Payment

Mobilization and Demobilization shall be paid for at the contract lump sum price for mobilization.

SECTION 26 TOPSOILING

Measurement and Payment

Topsoiling shall not be measured for payment but shall be incidental to Common Excavation.

END OF SECTION

0.03 SEEDING

1.

SCOPE:

Utilizing native seed within disturbed areas of the site. This work shall consist of site preparation activities, furnishing and installing the necessary vegetative material (native seeds) as specified below, within areas disturbed by construction.

2.

PRE-PLANTING CONFERENCE

A pre-planting conference will be held between the contractor and NRCS or their delegate to discuss the planting operation. Planting will not begin before this meeting.

3.

DEFINITIONS

a. Pure live seed (PLS) - lbs. of bulk seed x % germination x % purity

b. Soil finisher – a piece of farming equipment that is generally used in the last pass of field preparation. Examples of this type of equipment include the Phillips Rotary Harrow, Salford RTS – 570 RTS, or equivalents.

c. “Traditional cultivation” methods include utilizing a high residue plow, disc, and soil finisher to prepare the soil for seeding.

d. Tined ground-driven surface cultivator – an example of this type of equipment is the M&W Dyna-Drive ground-driven surface cultivator or equivalent.

e. Drag type harrow - a short tine pull-behind harrow.

4.

SITE PREPARATION

a. Scope: The Contractor shall utilize common row crop farming cultivation equipment and practices to establish a firm, non-compacted, smooth seed bed in the upper 2 to 4 inches of the top soil. Exposed mineral soil surface covering greater than 75% of the seeding area (less than 25% remaining crop residue) at any random location.

b. Seedbed preparation shall be completed as directed by NRCS.

5.

SEED PLANTING MATERIALS

a. Seed Mix Standards

i. The Contractor shall be responsible for acquiring, purchasing, and delivering the specified seed mixes to the Project area.

ii. Species purchased for seed mixes shall be native to the Project area and original seed origin within 200 miles of the Project area.

iii. Seed shall be purchased as Pure Live Seed (PLS)

iv. Seed shall be clean and free of debris and/or weed seed

v. Prior to seeding, Contractor shall provide seed tags of all seed mixes to be sown to the COTR. Seed tags shall include the following information; Botanical and common names, composition of seed mix by PLS, local genotype of seed (state and county), percentage of purity and germination of each species, weed seed species percentage and composition, year of production and date of packaging, and source of seed mix including contact information of supplier.

vi. Seed mixes shall be purchased “pre-mixed” by machine then shipped and stored in dry conditions.

b. Approved seed mixes

Wet-Mesic Prairie Seed Mix

Plant Type

Genus & Species Name Common Name Seeding Rate oz/acre PLS

Total LBS Req'd

Grass Andropogon gerardii Big blue stem 16

Grass Elymus canadensis Canada wild rye 8

Grass Elymus virginicus Virginia wild rye 8

Grass Panicum virgatum switchgrass 16

Grass Sorghastrum nutans Indian grass 16

Grass Spartina pectinata Prairie cordgrass 8

Forb Aster novae-angilae New England aster 1

Forb Helenium autumnale Sneezeweed 1

Forb Liatris pycnostachya Prairie Blazing star 1

Forb Monarda fistulosa Bergamot 1

Forb Ratibida pinnata Yellow cone flower 1

Forb Rudbeckia hirta Black-eyed Susan 1

Forb Silphium perfoliatum Cup plant 1

Forb Zizia aurea golden alexander 1

Forb Penstemon digitalis Foxglove beardtongue 1

Legume Desmodium canadense Showy tick-trefoil 1

Legume Baptisia latea White wild indigo 1

6.

SEED SOWING ACTIVITIES

a. Scope: Utilizing seeding equipment and methods described in this section to seed native vegetative species within the Project area.

b. A pre-planting conference shall be held between the contractor and the COTR or their delegate to discuss the seeding operation. Seeding will not begin before this meeting.

c. A written Seeding Action Plan indicating proposed method of seeding, seeding locations, seed mixes, quantities, and schedule shall be developed by the Contractor after the pre-planting conference. This Seeding Action Plan must be submitted to COTR prior to any seeding activities.

d. Seeding Standards

i. Contractor shall demonstrate their understanding of the location and seed mix type to be sown within each specific location in accordance with the Seeding Action Plan.

ii. Prior to seeding, the Contractor shall verify soil preparations have been completed according to specifications.

iii. Seed shall be lightly covered with native soil. Planting depth shall not exceed 0.25 inches.

iv. Seed shall be sown with broadcast type equipment.

v. Seeding shall be completed within 5 days of Site Preparation, and within the following windows

1. Prior to June 30 or

2. October 20 – Freeze up.

If seeding is required between June 30 and October 20, temporary cover shall be seeded as follows: Annual ryegrass (Lolium multiflorum) 20lbs/per acre PLS. If temporary seeding occurs, permanent seeding may be broadcast over this residue at next permanent seeding window.

e. Sowing or Planting Equipment

i. Equipment Standards

1. All equipment shall be clean of seed, soil, and fertilizer residue prior to entering Project area.

2. Equipment shall be calibrated and in good working condition.

3. Seed shall be sown with slight overlap on edges of broadcast width.

4. Operator shall be familiar with the equipment operations and have clear understanding of the Seeding Action Plan. The Operator shall have a minimum of 40 hours experience operating the same or similar equipment.

ii. Air-flow type boom or spreading broadcaster (large equipment)

1. Equipment shall have capability to broadcast native grass seed and pelletized limestone carrier evenly.

2. Carrier shall be mixed and broadcast at rate of 100 lbs/acre potash and 100 lbs/acre pelletized limestone (total of 200 lbs/acre).

3. Broadcasting equipment shall have GPS containing Seeding Action Plan layout/coordinates.

4. All seed shall be final passed immediately following broadcast seeding with a brillion type roller or cultipacker.

iii. Tractor mounted “tub” broadcaster (smaller equipment)

1. Equipment shall have capability to broadcast native grass seed evenly.

2. Short spiked fix tooth drag harrow shall be pulled behind implement that covers broadcast width.

3. All seed shall be final passed immediately following broadcast seeding with a brillion type roller, or cultipacker.

7.

QUALITY CONTROL

a. Quality control will be reviewed during the pre-planting conference. In addition, NRCS representatives will be available during the first day of seeding and will visit the site during seeding.

b. The Contractor shall maintain an adequate inspection system and perform such inspections as will ensure that the work performed under the contract conforms to contract requirements. The Contractor shall maintain complete inspection records and make them available to the NRCS. All work shall be conducted under the general direction of the Contracting Officer and is subject to NRCS inspection and test at all places and at all reasonable times before acceptance to ensure strict compliance with the terms of the contract.

8.

POST PLANTING MAINTENANCE

Post planting maintenance will be performed by others and is not included in this contract.

9.

MEASUREMENT AND PAYMENT

a. Seeding will be measured to the nearest one-tenth acre and paid at the contract unit price per acre of the type specified. Payment will include all labor, plants, materials, equipment, and tools necessary to perform the work.

b. Site Preparation for Seeding will be not be measured for payment but shall be incidental to seeding.

B&B LC WRP SITE

APPLICABLE WISCONSIN CONSTRUCTION SPECIFICATIONS

Section 1 Clearing

Section 2 Excavation

Section 3 Earthfill

Section 6 Corrugated Metal Pipe Conduits

Section 7 Mobilization and Demobilization

Section 26 Topsoiling

NOTE: Where the term Technician is used throughout the solicitation and resultant contract, this term shall mean Contracting Officer’s Technical Representative (COTR)

***ONLY THE CONTRACTING OFFICER CAN DIRECT THE CONTRACTOR***

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WISCONSIN CONSTRUCTION SPECIFICATION

1. CLEARING

SCOPE

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

MARKING

The limits of the areas to be cleared will be marked by means of 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.

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.

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.

CLEARING

Trees, brush, shrubs, stumps, and other woody growth shall be cleared to a height not exceeding 12 inches above the ground surface. Such growth may be cleared by cutting, pulling, grubbing, or other approved methods.

Trees shall be felled in such a manner as to avoid damage to trees that are to be left standing, existing structures, utilities, and with regard for the safety of persons.

When the designated areas to be cleared include borrow areas and/or areas upon which improvements are to be constructed, the required grubbing of stumps, roots, and other objectionable material in these areas shall be a part of this specification. The grubbing shall consist of the removal of all stumps, roots of 1 inch in diameter or larger, buried logs, and other objectionable material to a minimum depth of 2 feet below a structure subgrade and 1 foot below an embankment foundation.

SITE EROSION CONTROL

Measures shall be installed, or the work performed in a manner that will minimize site erosion, and the production of sediment. Protective measures shall include but are not limited to diversions, waterways, seeding, mulching, sediment basins, and silt fences.

DISPOSAL

All materials cleared from the designated areas shall be burned or buried at approved locations or otherwise removed from the site. Buried materials shall be covered with a minimum of 2 feet of earthfill (including any topsoil added for seeding).

The Contractor is responsible for complying with all rules and regulations for disposal at locations away from the construction site or for the burning of cleared materials.

2. EXCAVATION

1.

The work shall consist of the excavation of all materials necessary for the construction of the work.

SCOPE

2.

To the extent that they are needed, all suitable materials removed from the specified excavations shall be used in the construction of the required earthfill. The suitability of materials for specific purposes will be determined by the Technician. The Contractor shall not waste or otherwise dispose of suitable excavated materials.

USE OF EXCAVATED MATERIALS

3.

All surplus or unsuitable excavated materials will be designated as waste and shall be disposed of at the locations shown on the drawings or as approved by the Technician.

Waste materials shall not be placed in wetlands.

DISPOSAL OF WASTE MATERIALS

Material placed in designated waste disposal areas shall be left in a neat and sightly condition and sloped to provide positive drainage. Compaction of the waste materials will not be required unless specified by the construction plans.

Waste material excavated from channels may be deposited in leveled spoilbanks or areas adjacent to the channel work (if permissible). The shape and slopes of the spoilbanks shall be indicated on the drawings or as approved by the Technician. Spoil piles shall be located a minimum of 12 feet from the top of the channel side slope.

Spoil piles or disposal areas shall be protected to minimize site erosion and the production of sediment. Protective measures may include but are not limited to diversions, seeding, mulching, sediment basins, and silt fences.

4.

The required dimensions and side slopes of all structure and trench excavations shall be as shown on the drawings.

SPECIAL REQUIREMENTS FOR STRUCTURE AND TRENCH EXCAVATION

Excavation beyond the limits of the specified lines and grades shall be corrected by filling the resulting voids with approved compacted materials.

Excavation for the installation of pipes shall follow the practices contained in the Occupational Safety and Health Administration (OSHA) Subpart P, Excavation, of 29 CFR 1926.650, .651 and .652.

Side slopes shall be excavated or braced to safeguard the work and workers. When bracing or supporting is required, the width of the excavation shall be adjusted to allow for the space occupied by the sheeting, bracing, or other supporting installations. The Contractor shall furnish, place, and subsequently remove such supporting installations.

The Contractor shall construct and maintain all necessary cofferdams, channels, flumes, pumping equipment, and/or other temporary diversion and protective work for dewatering the various parts of the work. Foundations, cutoff trenches, and other parts of the work shall be maintained free from water as required for constructing each part of the work. After having served their purpose, all cofferdams and other temporary protective works shall be removed, or leveled to give a sightly appearance and so as not to interfere in any way with the operation, usefulness, or stability of the permanent structure.

REMOVAL OF WATER

6.

When the quantities of suitable materials obtained from specified excavations are insufficient to construct the specified fill portions of the permanent works, additional materials shall be obtained from the designated borrow areas.

BORROW EXCAVATION

When shown on the drawings, sediment basins, terraces, diversions, or other measures shall be constructed to protect the borrow areas from erosion and retain sediment within the borrow area.

The upper six (6) inches shall be stripped from all borrow areas. This stripping shall be performed immediately prior to use of the borrow material to reduce the time the area is exposed to erosion. For large borrow areas, only a portion of the area should be stripped at a time. This material shall be redistributed over the area from which it came after borrow excavation is completed.

The extent of excavation and the selection of materials from the borrow area shall be as directed by the Technician. On completion of excavation, all borrow pits shall be left in a neat and sightly condition. All borrow areas shall be graded to blend with existing topography and sloped to prevent ponding and provide positive drainage.

3. EARTHFILL

1. SCOPE

The work shall consist of placing the earthfill required by the drawings. This specification does not apply to the earthfill required for waste storage facilities.

2. MATERIALS

All fill materials shall be obtained from required excavations and designated borrow areas.

The selection, blending, routing, and disposition of materials in the various fills shall be subject to approval by Technician.

Fill materials shall contain no sod, brush, roots, frozen soil, or other perishable materials.

Stones larger than two-thirds of the uncompacted layer thickness shall be removed from the materials prior to compaction of the fill.

3. FOUNDATION PREPARATION

The foundation area shall be cleared of trees, stumps, roots, brush, rubbish, and stones having a maximum dimension greater than six (6) inches. Foundations shall be stripped to remove vegetation and other unsuitable materials or to the depth shown on the drawings, whichever is greater. Topsoil shall be stripped from the foundation area and stockpiled for use as a top dressing for vegetation establishment unless otherwise shown on the drawings.

Earth foundations shall be graded to remove surface irregularities and slopes steeper than 1:1.

The foundation surfaces shall be scarified parallel to the centerline of the fill to a minimum depth of 2 inches. The moisture content of the scarified materials shall be maintained as specified for the earthfill. The surface materials of the foundation shall be compacted and bonded with the first layer of earthfill as specified for subsequent layers of earthfill.

4. PLACEMENT

Fill shall not be placed until the required excavation and preparation of the underlying foundation is completed and inspected and approved by the Technician. No fill shall be placed upon a frozen surface nor shall snow, ice, or frozen material be incorporated in the fill.

Fill shall be placed in approximately horizontal layers beginning at the lowest elevation of the foundation. The thickness of each layer of fill prior to compaction shall be as specified in Table 1. Materials placed by dumping in piles or windrows shall be spread uniformly to not more than the specified layer thickness prior to compaction.

Adjacent to structures, earthfill shall be placed in 4-inch lifts (prior to compaction) in a manner adequate to prevent damage to the structure and to allow the structure to gradually and uniformly assume the backfill loads.

The height of the fill shall be increased at approximately the same rate on all sides of the structure.

Placement of fill adjacent to concrete structures may begin after the concrete has cured for the minimum time specified.

Earthfill in dams, levees, and other structures designed to impound water shall be placed to meet the following additional requirements:

a. The distribution of materials throughout each zone shall be essentially uniform, and the fill shall be free from lenses, pockets, streaks, or layers of material differing substantially in texture, moisture content, or gradation from the surrounding material.

b. The embankment top shall be maintained approximately level during construction except for sectional construction as described in Section 7.

c. Dam embankments shall be constructed in continuous layers from abutment to abutment, except where openings to facilitate construction or to allow passage of stream flow during construction are specified.

d. If the surface of any layer becomes too hard and smooth to achieve a suitable bond with the succeeding layer, it shall be scarified parallel to the axis of the fill to a depth of not less than 2 inches before the next layer is placed.

5. CONTROL OF MOISTURE CONTENT

Fill materials shall have a moisture content sufficient to insure the required compaction.

When kneaded in the hand, the soil will form a ball which does not readily separate and will not extrude out of the hand when squeezed tightly. The adequacy of the moisture content will be determined by the Technician.

Fill material or the top surface of the preceding layer of compacted fill that becomes too dry to permit suitable bond shall either be removed or scarified and wetted by sprinkling to an acceptable moisture content prior to placement of the next layer of fill.

Fill material that is too wet when deposited or the top surface of the preceding layer of compacted fill that becomes too wet shall be either removed or allowed to dry to an acceptable moisture content before compaction or placing additional layers of fill.

6. COMPACTION

The Contractor shall furnish and operate the types and kinds of equipment necessary to compact the fill materials.

Unless otherwise specified on the plans or approved by the Technician, compaction requirements for each layer of fill material are as shown in Table 1.

Each pass shall consist of at least one complete coverage by the wheel, track, or roller over the entire surface of the fill layer in a direction parallel to the main axis of the fill.

Adjacent to structures or in confined areas, compaction of the fill shall be accomplished by means of manually directed power tampers or plate vibrators or hand tamping, unless otherwise specified. The Technician shall determine if adequate compaction is being achieved. Heavy equipment shall not be operated within 2 feet of any structure.

Compaction by means of drop weights operating from a crane or hoist of any type will not be permitted.

7. SPECIAL REQUIREMENTS FOR SECTIONAL CONSTRUCTION OF EMBANKMENTS

When sectional (or phase) construction of embankments is authorized, the work shall be accomplished in the following manner:

Each section of the embankment that is constructed in the first phase shall be so placed that a slope not steeper than 3 feet horizontal to 1 foot vertical is maintained at the end of the embankment section adjacent to the gap in construction or closure section.

Prior to placement of the closure sections, the surfaces of completed fills and excavations that will be in contact with the closure shall be stripped of all loose material, scarified, moistened, and recompacted as necessary.

Table 1 - Equipment Compaction Requirements

Equipment Type Applicable Soils

Maximum Fill

Height

(feet)

Layer

Thickness

(inches)

Minimum

Passes

Sheepsfoot roller (10,000 lb. min.

operating weight)

ML, MH, CL, CH or

SM, SC, GM, GC

with >20% fines

None 9 1

Vibratory tamping roller (9,000 lb. min.

operating weight)

SM, SC, GM, GC None 9 2

Rubber-tired scraper (fully loaded)

GM, GC, SM, SC,

ML, MH, CL, CH 20 9 1

Rubber-tired front end loader (fully loaded)

GM, GC, SM, SC,

ML, MH, CL, CH 20 6 1

Track-type crawler (standard tracks)

GM, GC, SM, SC,

ML, CL 10** 6 2

30,000 lb. min. SP, SW, GP, GW 6** 12 4

CL, ML, SC, SM 15

3 2 less than 30,000 lb.

GM, GC, GP, GW,

SM, SC, SP, SW,

ML, CL

6** 6 2

Farm tractor (2,400

lb. min.)

GM, GC, SM, SC,

ML, MH, CL, CH 15 6 2

Steel drum vibratory roller (10,000 lb. min.) SP, SW, GP, GW None** 12 2

Unified Soil Classification System.

Measured from the top of the fill to the lowest point along the centerline of the fill.

Prior to Compaction.

The Technician shall determine if adequate compaction is being achieved. Additional passes may be required.

** The fill shall not have a permanent body of water stored against it.

This method may only be used for embankments that will not have the potential for a permanent body of water stored against it that is greater than 1/4 acre in surface area or more than 6 feet deep.

6. CORRUGATED METAL PIPE CONDUITS

1.

The work shall consist of furnishing and placing circular, arched, or elliptical corrugated metal pipe and the necessary fittings.

SCOPE

2.

Steel pipe and fittings shall be zinc-coated, aluminum-coated, or aluminum-zinc alloy-coated conforming to the current requirements of ASTM A 742, A 760, A 761, A 762, A 849, A 875, A 885, A 929, or AASHTO M 218 and M 274 as appropriate for the coating specified.

MATERIALS AND FABRICATION

Clad aluminum pipe and fittings shall conform to the current requirements of ASTM B 745, B 746, or B 790 or AASHTO M 197.

The thickness of the corrugated metal shall be as shown on the drawings.

Unless otherwise specified, all riveted corrugated metal pipe used in conduits shall be close-riveted with caulked seams. Close-riveted pipe shall be fabricated so that the rivet spacing in the circumferential seams shall not exceed 3 inches, except that 12 rivets will be sufficient to secure the circumferential seams in 12-inch pipe. In those portions of the longitudinal seams that will be covered by coupling bands, the rivets shall have finished flat heads or the holes and rivets shall be omitted and the seams connected by welding to provide a minimum of obstruction to the seating of the coupling bands.

The caulking compound shall consist of a mastic combined with fibers and other inert filler material to form a heavy-bodied compound that will not sag or run out of the seam. The compound shall contain a minimum of 60 percent solids by weight.

The caulking of riveted seams shall be accomplished by applying a uniform bead (1/4-inch minimum diameter) of the mastic compound to the inner lap surface before riveting such that when the rivets are in place, all voids are filled and a coating of mastic is between the lap surfaces.

Hardware consisting of coupling bands and band fastening devices such as connecting bolts, rods, lugs, and angles used in conjunction with zinc-coated iron or steel pipe shall be galvanized by the hot-dip method. Hardware used in conjunction with aluminum pipe and aluminum or aluminum-zinc alloy-coated iron and steel pipe shall be of the same material as the pipe except that hot-dip galvanized or cadmium plated fasteners may be used.

3.

The Contractor shall furnish equipment necessary to place the pipe without damaging the pipe or coatings. The pipe shall be transported and handled in a manner to prevent damage to the pipe or coating.

LAYING AND BEDDING THE PIPE

The pipe shall be laid with the outside laps of the circumferential joints pointing upstream and with longitudinal laps at the sides at about the vertical mid-height of the pipe. Field welding of corrugated galvanized iron or steel pipe will not be permitted. Unless otherwise specified, the pipe sections shall be joined with watertight coupling bands and caulked as specified on the drawings. The pipe shall be firmly and uniformly bedded throughout its entire length to the depth and in the manner specified on the drawings.

Perforated pipe shall be laid with the perforations down and oriented symmetrically about a vertical centerline. Perforations shall be clear of any obstructions at the time the pipe is laid.

Unless otherwise specified, earth backfill shall be placed in the manner stated in Wisconsin Construction Specification 3, Earthfill, for fill adjacent to structures. Special care shall be taken to prevent lifting the pipe from the bedding by pressures exerted by tamping material under the haunches of the pipe.

4.

When the metallic coating is damaged in any individual area larger than 12 square inches, or if more than 0.2 percent of a total surface area of a length of pipe is damaged, that section of pipe will be rejected.

REPAIR OF DAMAGED COATINGS

Any damage to the metallic coating shall be repaired by cleaning the damaged surface area to bright metal by sand blasting, power disk sanding, or wire brushing. All loose and cracked coating, dirt, oil or grease, and any products of corrosion shall be removed prior to the application of two (2) coats of the paint noted below. The surface shall be clean and dry during the painting period and until the coating has dried.

Aluminum pipe shall be painted with a chromate-rich primer.

Painting steel pipe shall be accomplished by one of the following options based upon installed exposure conditions of the pipe as approved by the Engineer.

Normal exterior or interior atmospheric exposure:

a. Zinc dust - zinc oxide primer, ASTM D 79 and D 520.

b. Single package, moisture cured urethane primer in silver metallic color, or

c. Zinc-rich cold galvanized compound, brush, or aerosol application.

Submergence in water exposure:

a. Zinc dust - zinc oxide primer, ASTM D 79 and D 520

b. Zinc dust paint, ASTM D 4146

7. 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.

2. EQUIPMENT AND MATERIAL

Mobilization shall include:

• All activities and associated costs for transportation of the 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

• Construction and maintenance of haul roads and equipment parking areas

• Other job related items

Demobilization shall include:

• All activities and costs for transportation of personnel, equipment, and supplies not utilized in the project from the site

• Disassembly, removal, and site cleanup of offices, buildings, and other facilities assembled on the site.

• Repair of access roads, temporary haul roads, and equipment parking areas leaving the project site in the same or better condition than at the start of the project.

• General cleanup and house keeping needed to restore a neat and orderly project site.

Access to the site, equipment parking, and staging areas are limited to that shown on the drawings or as approved by the technician.

26. TOPSOILING

SCOPE

The work consists of furnishing and spreading topsoil to specified depths at locations shown on the drawings. This specification does not apply to any other earthfill.

MATERIALS

Topsoil shall consist of naturally occurring friable surface soil reasonably free of grass, roots, weeds, sticks, rocks, other unsuitable material, herbicides, or other compounds whose presence would prevent establishment of grass and/or legume sod cover.

Topsoil shall be obtained from soil surfaces containing USDA soil textural classifications of loam, sandy loam, silt loam, silty clay loam, sandy clay loam, or clay loam soils shown on the drawings or acceptable to the Technician.

Topsoil shall:

• be salvaged from designated areas that will be disturbed by construction activities or be furnished from an offsite source designated by the Contractor. The Technician shall be granted access to the source for inspection and acceptance before delivery to the site.

• meet the following requirements (when testing is required):

100% passing the ¾-inch sieve.

minimum 95% passing the #10 sieve.

minimum 25% passing the #200 sieve.

3% - 15% organic material.

non-positive herbicide carryover (UW Extension Publication A3819, Herbicide

Persistence and Carryover). (UW Extension publications are available online at http://cecommerce.uwex.edu)

TESTING

The Technician will determine the need for testing the topsoil for gradation, percent organic matter content, and herbicide carryover effect. The testing will be at the expense of the Contractor.

FOUNDATION PREPARATION AND PLACEMENT

The surfaces designated to receive a topsoil application shall be cleared of all objectionable materials including trees, stumps, roots, brush, rubbish, and stones having a maximum dimension greater than 6 inches. The surfaces shall be lightly scarified just before the spreading operation. Topsoil shall not be placed until the required excavation, fill and preparation of the surfaces is complete and approved by the Technician.

Spreading shall not be conducted when the ground or topsoil is frozen, excessively wet, or otherwise in a condition detrimental to uniform spreading operations. Snow, ice, or frozen material shall not be incorporated in the topsoil.

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Topsoil shall be placed in approximately horizontal layers no greater than 8 inches thick.

Placement of topsoil adjacent to concrete structures may begin after the concrete has cured for the minimum time specified. Heavy equipment shall not be operated within 2 feet of any structure.

Following the spreading operation, the topsoil surface shall be left reasonably smooth and without ruts or surface irregularities that could contribute to concentrated waterflow downslope.

MOISTURE CONTENT

Topsoil shall have a moisture content sufficient to insure the spreading of the material to the required thickness. When kneaded in the hand the soil will form a ball which does not readily separate and will not extrude out of the hand when squeezed tightly. The adequacy of the moisture content will be determined by the Technician.

COMPACTION

The Contractor shall furnish and operate the types and kinds of equipment necessary to compact the topsoil material when specified. The Technician shall determine if adequate compaction is being achieved.

Adequate compaction is defined as a firm surface able to support the growth of vegetation.

Methods for compaction may include back-blading or a single pass from a rubber tire, track, or roller. A pass shall consist of complete coverage by the rubber tire, track, or roller over the entire surface of the topsoil. Care must be taken to avoid excessive compaction of topsoil.

Adjacent to structures or in confined areas, compaction of topsoil shall be accomplished by means of manually directed power tampers of plate vibrators or hand tamping, unless otherwise…