Section_J-1_-Definition_of_Bid_Items_and_Measurement_and_Payment.docx

DEFINITION OF BID ITEMS

AND

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

SUMMARY

A. The intent of this section is to explain, in general; what is and what is not included in a bid item; the limits or cut-off points where one bid item ends and another begins; and method of measurements and basis of payment for work items listed in the Bid Item Schedule.

B. Work:

1. Furnishing all labor, materials, equipment, and other incidentals necessary to successfully complete the project or any portion of it, and carrying out all duties and obligations imposed by the contract on the Contractor.

C. Payment:

1. For each individual item listed here and in the Schedule of Items, payment shall be full compensation for all work related to the particular item in accordance with these specifications, as shown on the drawings, and as staked in the field.

2. Measurement and payment for contract work shall be made only for and under those pay items included in the Schedule of Items. All other work and materials shall be considered incidental or as included in the payment for items shown.

DETERMINATION OF QUANTITIES

A. The contractor shall perform, or cause to be performed, all measurement of quantities of materials incorporated into the work processes that are to be measured under the provisions of the contract.

B. Quantity Measurements:

1. Contract Quantities (CQ). These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available before advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units designated in the Schedule of Items may be authorized under any of the following conditions:

a. Changes in the work authorized by the CO.

b. A determination by the CO that errors exist in the original design that cause a Pay Item quantity to change by 15 percent or more.

c. A written request submitted to the CO showing evidence of errors in the original design that cause the quantity of a PAY IT'EM to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is in error.

1. Actual Quantities (AQ). These quantities are determined from measurements of completed work.

2. Lump Sum Quantities (LSQ). These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

For all the Pay Items shown is the Schedule of Items, use the method of measurement that is designated in the SCHEDULE OF ITEMS.

UNITS OF MEASUREMENT

A. Payment shall be by units defined in the SCHEDULE OF ITEMS and determined according to U.S. Standard measure and by the following:

Each: One complete unit, which may consist of one or more parts.

Linear Foot: Linear feet measured horizontally.

Square Foot: Measure on a plane parallel to the surface being measured.

Cubic Yard: Measure according to the lines of the structure as shown on the plans except as altered by the CO to fit field conditions. Make no deduction for the volume occupied by reinforcing steel, anchors, weep holes, piling, or pipes less than 8 inches in diameter.

Ton: Unit of weight equivalent to 2000 pounds.

Lump sum: Do not measure directly. The bid amount is complete payment for all work described in the contract and necessary to complete the work for that item. The quantity is designated as "All." Estimated quantities of lump sum work shown in the contract are approximate.

DEFINITION OF PAY ITEMS

A. Definition of Pay Item No. 1 - Mobilization

1. Description: Work under this Pay Item consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

B. Definition of Pay Item No. 2 – Removal of Existing Concrete (Grade Dip and Waste Pile)

1. Description: Work under this Pay Item consists of removing and disposal of the existing concrete drainage dip and concrete waste pile in front of the ware house building. Incidental work includes; excavate, load and haul of removed material; load, haul, replacement and compaction of suitable backfill material caused by the removal of concrete.

C. Definition of Pay Item No. 3 – Reinforced Concrete Driveway and Warehouse Apron, 6-Inch Thickness

1. Description: Work under this Pay Item consist of constructing cast-in-place reinforced concrete driveway and ware house apron including minor excavation and final site grading, aggregate base, reinforcement, doweling into existing concrete, concrete, expansion joint material, forms and formwork, finishing and curing.

D. Definition of Pay Item No. 4 – Site Grading for All Concrete and Retaining Wall Work

1. Description: Work under this Pay Item consists of final site grading for all the concrete and retaining wall work items described in the Schedule of Items. Incidental work includes clearing and grubbing, topsoil conservation, excavation, embankment placement, finish grading, removal of unsuitable material, furnishing any backfill material including loading, hauling, placement and compaction.

E. Definition of Pay Item No. 5 – Portland Cement Concrete Accessible Ramp with Steel Handrail

1. Description: Work under this Pay Item consist of constructing cast-in-place concrete accessible ramp including minor excavation and final site grading, aggregate base, steel handrail, reinforcement, concrete, expansion joint material, forms and formwork, finishing and curing.

F. Definition of Pay Item No. 6 – Portland Cement Concrete Sidewalk, 4-Inch Thickness

1. Description: Work under this Pay Item consist of constructing cast-in-place concrete sidewalk including minor excavation and final site grading, aggregate base, reinforcement, concrete, expansion joint material, forms and formwork, finishing and curing.

G. Definition of Pay Item No. 7 – Wheelstops (Precast Concrete)

1. Description: Work under this Pay Item consists of furnishing and placement of precast concrete wheelstops. Incidental work includes anchoring of wheelstops (if required).

H. Definition of Pay Item No. 8 – Concrete Retaining Wall with Stone Veneer and Cap

1. Description: Work under this Pay Item consists of constructing concrete retaining wall with stone veneer and cap. Work includes foundation excavation, compaction, setting forms, furnishing and installing concrete and reinforcement, placing concrete for foundation spread footings and walls, concrete curing, stripping concrete forms, foundation backfill and compaction. Work shall also consist of furnishing and installing simulated-stone exterior wainscot for the vertical retaining wall and cap. Incidental work includes furnishing and installing setting beds and grouting as well as cleanup.

I. Definition of Pay Item No. 9 – Modular Concrete Block Retaining Wall and Cap

1. Description: Work under this Pay Item consists of constructing modular concrete retaining wall and cap. Work includes foundation excavation, compaction, placement of block units and top cap, furnishing and installing drainage rock, furnishing and installing drainage piping, backfilling and compaction behind retaining wall, and back sloping of finished slope.

J. Definition of Pay Item No. 10 – Curb and Gutter, Type Outfall

1. Description: Work under this Pay Item consist of constructing cast-in-place concrete curb only including minor excavation and final site grading, aggregate base, concrete, expansion joint material, forms and formwork, finishing and curing.

K. Definition of Pay Item No. 11 – Concrete Chase Drain

1. Description: Work under this Pay Item consist of constructing cast-in-place concrete sidewalk and curb with integral galvanized chase drain including excavation and final site grading, aggregate base, reinforcement, concrete, expansion joint material, galvanized plate, forms and formwork, finishing and curing.

L. Definition of Pay Item No. 12 – Cutting and Disposal of Roadway Vegetation (Main Entrance and Round House Areas)

1. Description: Work under this Pay Item consists of providing all materials, equipment, and labor for the clearing, grubbing, and removing of debris and vegetative materials at the entrances to the Laupahoehoe Science and Education Center. It shall also include the clearing, grubbing, and removal associated with the site grading of the future security gate area at the main entrance.

M. Definition of Pay Item No. 13 – Drainage Excavation, Type Outlet Ditch with Riprap

1. Description: Work under this Pay Item shall consist of providing all material, equipment, and labor for the construction of a geotextile and riprap lined outlet ditch.

N. Definition of Pay Item No. 14 – Drainage Excavation, Type Drainage Swale

1. Description: Work under this Pay Item shall consist of providing all material, equipment, and labor for the construction of a drainage swale around the warehouse parking area.

O. Definition of Pay Item No. 15 – Site Grading for All Parking and Security Gate Areas

1. Description: Work under this Pay Item consists of final site grading for all the parking areas and other areas not covered under Site Grading for Concrete and Retaining Wall or Road Reconditioning. Incidental work includes clearing and grubbing, topsoil conservation, excavation, embankment placement, finish grading, removal of unsuitable material, furnishing any backfill material including loading, hauling, placement and compaction.

P. Definition of Pay Item No. 16 – Aggregate Base, Grading ¾” Maximum, Compaction 95% of Maximum Density

1. Description: Work under this Pay Item shall consist of providing all aggregate material, equipment, quality control testing, and labor for the placement, finishing, and compaction of aggregate base materials on roadways and parking areas.

Q. Definition of Pay Item No. 17 – Road Reconditioning

1. Description: Work under this Pay Item shall consist of providing all material, equipment, and labor for the reconditioning of ditches, shoulders, and roadbed for existing roads and areas not covered under site grading. Clearing, excavation, and pit run work for constructing rolling dip and grade dip shall be considered incidental to this pay item. Aggregate Base and Hot Asphalt Concrete Pavement for rolling dip and grade dip shall be paid for by items listed in the Schedule of Items.

R. Definition of Pay Item No. 18 – Hot Asphalt Concrete Pavement, County of Hawaii, Mix 3 or 4

1. Description: Work under this Pay Item shall consist of providing all asphalt pavement materials, equipment, quality control testing, and labor for the placement, finishing, and compaction of hot asphalt concrete pavement on roadways and parking areas. Saw cutting and tack coat shall be considered incidental work.

S. Definition of Pay Item No. 19 – Asphalt Concrete Curb, 6-Inch Depth

1. Description: Work under this Pay Item shall consist of providing all asphalt pavement materials, equipment, and labor for the placement, finishing, and compaction of hot asphalt concrete curb on finished roadway. Tack coat and sealing shall be considered incidental work.

T. Definition of Pay Item No. 20 – Gate, 12’ Length, Galvanized with 2x4 Mesh

1. Description: Work under this Pay Item shall consist of providing all metal gates and fencing materials, equipment, and labor for the installation of galvanized metal gates including wood side fence bracing on each side. Work shall also include labor and fencing materials to transition back into existing fencing.

U. Definition of Pay Item No. 21 – Removal and Reset Front Gate

1. Description: Work under this Pay Item shall consist of providing all materials, equipment, and labor for the removal and re-installation of the existing main gate during construction. Work shall also include labor and fencing materials to transition back into existing fencing.

V. Definition of Pay Item No. 22 – Pavement Markings, 2” Wide Single, White, Reflectorized

1. Description: Work under this Pay Item shall consist of providing all materials, equipment, and labor for the pavement markings for the delineation of the parking stalls.

W. Definition of Pay Item No. 23 – Pavement Markings, Symbols and Letters, Access Aisles, 2” wide, White, Reflectorized

1. Description: Work under this Pay Item shall consist of providing all materials, equipment, and labor for the complete pavement stripping for the 5’x20’ accessible aisles.

X. Definition of Pay Item No. 24 – Pavement Markings, Symbols and Letters, Accessibility Symbol

1. Description: Work under this Pay Item shall consist of providing all materials, equipment, and labor for the complete pavement marking of an accessibility symbol.

DEFINITION OF BID ITEMS &

MEASUREMENT AND PAYMENT

SUBMITTAL PROCEDURES

PART 1- GENERAL

SUMMARY

A. This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Samples, and other miscellaneous submittals.

SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities.

1. Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination. CO reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

B. Processing Time: Allow enough time for submittal review, including time for resubmittals, as follows. Time for review shall commence on CO's receipt of submittal.

1. Submittal Review: Allow 5 days for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing.

C. Use for Construction: Use only final submittals with mark indicating action taken by CO in connection with construction.

PART 2 – PRODUCTS

SUBMITTALS

A. General: Prepare and submit submittals required by individual Specification Sections.

SUBMITTAL PROCEDURES

QUALITY REQUIREMENTS

PART 1 - GENERAL

SUMMARY

A. This Section includes administrative and procedural requirements for quality assurance and quality control.

B. Testing and inspecting services are required to verify compliance with requirements specified or indicated. These services do not relieve Contractor of responsibility for compliance with the Contract Document requirements.

1. Specified tests, inspections, and related actions do not limit Contractor's quality-control procedures that facilitate compliance with the Contract Document requirements.

2. Requirements for Contractor to provide quality-control services required by Contracting Officer (CO), or authorities having jurisdiction are not limited by provisions of this Section.

C. See Divisions 2 through 16 Sections for specific test and inspection requirements.

SUBMITTALS

A. Permits, Licenses, and Certificates: For CO’s records, submit copies of permits, licenses, certifications, inspection reports, releases, jurisdictional settlements, notices, receipts for fee payments, judgments, correspondence, records, and similar documents, established for compliance with standards and regulations bearing on performance of the Work.

QUALITY CONTROL

A. Contractor Responsibilities: Unless otherwise indicated, provide quality-control services specified and required by authorities having jurisdiction.

1. Where services are indicated as Contractor's responsibility, engage a qualified testing agency to perform these quality-control services.

2. Notify testing agencies at least 48 hours in advance of time when Work that requires testing or inspecting will be performed.

3. Where quality-control services are indicated as Contractor's responsibility, submit a certified written report, in duplicate, of each quality-control service.

4. Testing and inspecting requested by Contractor and not required by the Contract Documents are Contractor's responsibility.

B. Coordination: Coordinate sequence of activities to accommodate required quality-assurance and quality-control services with a minimum of delay and to avoid necessity of removing and replacing construction to accommodate testing and inspecting.

Schedule times for tests, inspections, obtaining samples, and similar activities.

PART 2 - PRODUCTS (NOT USED)

PART 3 – EXECUTION

REPAIR AND PROTECTION

A. General: On completion of testing, inspecting, sample taking, and similar services, repair damaged construction and restore substrates and finishes.

1. Provide materials and comply with installation requirements specified in other Sections of these Specifications. Restore patched areas and extend restoration into adjoining areas in a manner that eliminates evidence of patching.

B. Protect construction exposed by or for quality-control service activities.

C. Repair and protection are Contractor's responsibility, regardless of the assignment of responsibility for quality-control services.

QUALITY REQUIREMENTS

SELECTIVE DEMOLITION

PART 1 - GENERAL

SUMMARY

A. This Section includes demolition, removal, and backfilling of the following:

1. Concrete drainage dip on access road to main house

2. Concrete waste piles from previous concrete placement at the warehouse.

DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

B. Remove and Salvage: Detach items from existing construction and deliver them to Government.

C. Remove and Reinstall: Detach items from existing construction, prepare them for reuse, and reinstall them where indicated.

D. Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain Government property, demolished materials shall become Contractor's property and shall be removed from Project site and recycled/disposed of in accordance with all applicable laws and regulations.

SUBMITTALS

A. Schedule of Selective Demolition Activities: Indicate detailed sequence of selective demolition and removal work, with starting and ending dates for each activity, interruption of utility services, use of elevator and stairs, and locations of temporary partitions and means of egress.

PROJECT CONDITIONS

A. Storage or sale of removed items or materials on-site will not be permitted.

B. Utility Service: Maintain existing utilities and protect them against damage during selective demolition operations.

PART 2 – PRODUCTS

REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. If identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

2. Use materials whose installed performance equal or surpasses that of existing materials.

B. SELECT BACKFILL

1. Select backfill shall be native or imported soil, sand, or granular soil free of stones larger than 6 inches in greatest dimension.

PART 3 – EXECUTION

EXAMINATION

A. Verify that utilities have been disconnected and capped.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

C. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict. Promptly submit a written report to CO.

UTILITY SERVICES

A. Existing Utilities: Maintain services indicated to remain and protect them against damage during selective demolition operations.

B. Do not interrupt existing utilities serving occupied or operating facilities unless authorized in writing by CO and authorities having jurisdiction.

C. Provide at least 72 hours' notice to CO if shutdown of service is required during changeover.

SELECTIVE DEMOLITION

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations.

B. Existing Facilities: Comply with CO’s requirements for using and protecting elevators, stairs, walkways, loading docks, building entries, and other building facilities during selective demolition operations.

C. Remove Items:

1. Concrete drainage dip

2. Concrete waste pile

DISPOSAL OF DEMOLISHED MATERIALS

A. General: Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

B. Disposal: Transport demolished materials off Government property and legally disposes of them in accordance with all applicable laws and regulations.

BACKFILLING

A. After the elements have been removed and disposed of, the remaining depression shall be backfilled. Backfilling shall not be done when the depression is saturated or flooded with water. Puddling methods of backfill consolidation will not be permitted.

B. Select backfill shall be placed within the remaining depression. The material shall be placed in layers not over six inches in depth and compacted to the density of the surrounding material. The area shall be backfilled in such a manner until the area is brought up to the level of the natural ground.

SELECTIVE DEMOLITION

CLEARING & GRUBBING

PART 1 - GENERAL

SUMMARY

A. This work shall consist of clearing, grubbing, trimming, removing, and disposing of or treatment of timber, construction slash, and debris. This work shall also include preservation of vegetation and objects DESIGNATED to remain from injury or defacement.

PART 2 – PRODUCTS (

NOT APPLICABLE)

PART 3 – EXECUTION

CLEARING & GRUBBING

A. All debris, trees, stumps, roots, and other protruding vegetative material within the clearing limits, not DESIGNATED to remain, shall be cleared, grubbed, removed, and disposed of.

B. All roots over 3 inches in diameter shall be grubbed to a minimum depth of 6 inches below subgrade. Roots over 3 inches in diameter protruding from the excavated slope shall be cut flush with the excavated slope surface.

C. Trees shall be felled into the area being cleared when ground conditions, tree lean, and shape of clearing permit. Controlled felling shall be used that will ensure the direction of fall when necessary to prevent damage to property, structures, trees DESIGNATED to remain, or traffic.

D. Branches on remaining trees or shrubs shall be trimmed to give a clear height of 14 feet above the roadbed unless otherwise SHOWN ON THE DRAWINGS. Tree limbs shall be trimmed as near flush with the trunk as practicable.

SLASH TREATMENT

A. Treatment of construction slash larger shall be removed or hauled to locations off National Forest lands. No construction slash shall be deposited in lakes, meadows, streams, or streambeds. Construction slash that interferes with drainage structures shall be removed immediately.

CLEARING AND GRUBBING

DRAINAGE EXCAVATION

PART 1 - GENERAL

SUMMARY

A. This work shall consist of excavation and shaping of drainage excavation and disposal of all excavated material necessary for the completion of construction including roadway ditches, channel changes, slope rounding, berms, and subsidiary work.

B. Excavation shall be in accordance with County of Hawaii, Standard Specifications for Public Works Construction, dated September 1986 unless otherwise amended.

PART 2 – PRODUCTS

RIPRAP MATERIAL

A. Furnish hard, durable, angular rock that is resistant to weathering and water action and free of organic or other unsuitable material. Do not use rock that may break into smaller pieces in the process of handling and placing.

Gradation Requirements for Riprap

Rock by Mass Mass (pounds) Approximate Cubic Dimension(2)(3) (inches)

GEOTEXTILE MATERIAL

A. Conform to the following: Type IV, woven, permanent erosion control.

PART 3 – EXECUTION

DRAINAGE EXCAVATION

A. Drainage excavation shall include construction of side ditches, minor channel changes, inlet and outlet ditches, furrow ditches, ditches constructed along the road but beyond the roadway limits, and other minor earth drainage structures as SHOWN ON THE DRAWINGS.

FINISHING SLOPES

A. Finished slopes shall conform reasonably to the lines SHOWN ON THE DRAWINGS. The finished slope for non-riprap ditches shall be left in a roughened condition to facilitate the establishment of vegetative growth. Loose rock, loose debris, and other loose material, each of which is larger than 6 inches in diameter, shall be removed from the slope.

AGGREGATE BASE COURSE

DESCRIPTION

A. The work of this section consists of furnishing and placing aggregate, and filler if required, on a prepared sub-grade. Watering for compaction is incidental to this work.

SUBMITTALS

A. If materials are obtained from a commercial source, submit certification from the supplier certifying that aggregate base course meets the requirements of this section.

QUALITY ASSURANCE

A. Testing required determining compliance with the requirements for the work of this section will be the responsibility of the Contractor.

PART 2 - PRODUCTS

AGGREGATE

A. Clean, hard, durable fragments or particles of crushed stone, crushed slag, or crushed or natural gravel. Materials that break up due to freeze-thaw or wet-dry cycling shall not be used.

B. Coarse Aggregate: AASHTO T96-94, percentage of wear of not more than 50.

C. Fraction passing No. 40 sieve shall have a liquid limit not to exceed 25 and a plasticity index of not more than 6, as determined by AASHTO T89-94 and T90-94, respectively.

D. Material, inclusive of filler, shall meet following screen analysis requirements by weight.

1. State of Hawaii, Department of Transportation, Standard Specification for ¾” maximum untreated road base

WATER

A. Free of debris, organic matter, and other objectionable substances

PART 3 - EXECUTION

PLACING

A. If the required compacted depth of the aggregate base course exceeds 6 inches, place course in two or more layers of approximately equal thickness. The maximum compacted thickness of any one layer shall not exceed 6 inches.

COMPACTION

A. Compact, water, and roll each layer of aggregate material full width until there is no visible evidence of further consolidation or to a firm stable base. Compaction shall be not less than 95% of its maximum density.

SURFACE FINISHING

A. Compacted base course surface shall be smooth and free from waves and other irregularities. Unsatisfactory portions of base course shall be torn up, re-worked, re-laid, and re-rolled, at no additional expense to the Government.

TOLERANCES

A. Surface: The Contracting Officer will test finished surface of the base course with a 10-foot straightedge or other device. The variation between any two contacts with the surface shall not exceed 1/4 inch. Any areas not complying with these tolerances shall be reworked to obtain conformity.

B. Width: Plan dimension, plus or minus 2 inches.

C. Thickness: Plan dimension, plus or minus 1/4 inch.

MAINTENANCE

A. Maintain base course in a satisfactory conditional until surfaced or until final acceptance.

AGGREGATE BASE COURSE

SITE GRADING

PART 1 - GENERAL

SUMMARY

A. Includes topsoil stripping, rock removal, cutting, filling, compaction and rough grading.

PROTECTION

A. During grading operations, and before stopping work for the day, blade unfinished areas being graded to provide a well-drained surface so water cannot collect in pools and puddles.

B. Protect newly graded areas from traffic and erosion.

PART 2 – PRODUCTS

FILLS AND EMBANKMENTS

A. Use excavated material, including rock up to 3 inches, in largest dimension. Material removed in stripping shall not be used. Material used must be clean and free from vegetation, pieces of timber, muck, and other foreign material.

1. Rocks over 4 inches in largest dimension not permitted in the top 2 feet of fill. Rocks over 2 inches in largest dimension not permitted in the top 6 inches of fill.

2. No frozen material permitted in the fill.

TOPSOIL

A. Use material stripped from the cleared area. Remove large roots and stones over 2 inches in maximum dimension.

PART 3 – EXECUTION

TOPSOIL STRIPPING

A. Strip to a depth of 3 inches within the grading and excavation limits if topsoil is present.

B. Remove without contamination with subsoil and stockpile on the site as directed by the Contracting Officer (CO).

CUTS, FILLS, AND EMBANKMENTS

A. Locations, lines, and grades as staked on the ground or as necessary for completion of the work.

B. Cohesive soils that have become hard or lumpy, or that have been piled and have become dry, shall be broken up and properly conditioned for moisture content for moisture content immediately before use in filling.

C. Place material in successive layers of 8 to 12 inches in loose depth for the full cross-section and compact each layer of material full width until there is no visible evidence of further consolidation.

ROUGH GRADING

A. Uniformly smooth grade excavated and filled sections and adjacent transition areas.

B. Grade finished surface for other areas reasonably smooth, compacted, and free from irregular surface changes.

1. The degree of finish shall be that ordinarily obtainable from a blade-grader.

2. The finished surface on which sidewalk areas are to be placed shall not vary more than 0.05 foot from the established grade.

3. Other surfaces shall not vary more than 0.10 foot from the established grade.

4. Slope grade away from structures minimum 2% for a distance of 10 feet minimum.

COMPACTION

A. Compact, water, and roll each layer of material full width with equipment of adequate energy until there is no visible evidence of further consolidation or to a firm stable subgrade. The finished subgrade shall be subject to visual inspection for any deflections and accepted accordingly.

SITE GRADING

ROAD RECONDITIONING

PART 1 - GENERAL

GENERAL

A. This work consists of clearing and grubbing, reconditioning ditches, rolling dips, grade dips, shoulders, roadbeds, and aggregate surfaces.

PART 2 – PRODUCTS (NOT APPLICABLE)

A. Ditch Reconditioning. Remove all slide material, sediment, vegetation, and other debris from the existing ditches and drainage inlets and outlets. Reshape ditches and drainage inlets and outlets to achieve positive drainage and a uniform ditch width, depth, and grade. Dispose of unsuitable waste material off National Forest lands.

B. Shoulder Reconditioning. Repair soft and unstable areas. Excavate and prevent unsuitable material from becoming mixed with the backfill. Backfill the sub-excavation with topping or other suitable material. Remove all slide material, vegetation, and other debris from existing shoulders including shoulders of parking areas, turnouts, and other widened areas. Reshape shoulders and dispose of unsuitable waste material off National Forest lands.

C. Roadbed Reconditioning. Repair soft and unstable areas. Excavate and prevent unsuitable material from becoming mixed with the backfill. Backfill the sub-excavation with topping or other suitable material. Remove all organic, deleterious, or oversize material larger than 6 inches from the top 6 inches of subgrade. Dispose of unsuitable waste material off National Forest lands. Scarify to a 6-inch depth, remove surface irregularities, and shape to provide a uniform surface. Finish earth surfaces to within 0.05 feet and rock surfaces to within 0.10 feet.

D. Aggregate Surface Reconditioning. Repair soft and unstable areas to the full depth of the aggregate surface. Scarify to the depth of the aggregate surface or to a depth of 8 inches, whichever is less, and remove surface irregularities. Reshape, finish, and compact the entire aggregate surface.

E. Compaction. The Contractor shall achieve compaction with a minimum of a self-propelled smooth drum roller with adequate energy for the materials and moisture content. The subgrade and finished grade shall be subject to visual inspection for any deflections and accepted accordingly.

ROAD RECONDITIONING

HOT BITUMINOUS PLANT MIX (COMMERCIAL SOURCE)

PART 1 - GENERAL

GENERAL

A. This work shall consist of constructing one or more courses of hot bituminous plant mix on a prepared base or roadbed. Surface to be constructed upon shall be approved, in writing, by the Engineer prior to placing plant mix.

PART 2 - PRODUCTS

BITUMINOUS MATERIAL

A. Asphalt cement shall meet the requirements of Section 34.2 (A) of the County of Hawaii Standard Specifications for Public Works Construction dated September 1986.

AGGREGATE

A. Aggregate shall meet the requirements of Section 34.2(B) of the County of Hawaii Standard Specifications for Public Works Construction dated September 1986.

ADDITIVES

A. Blending Sand and Mineral Filler shall meet the requirements of Section 34.2(C) of the County of Hawaii Standard Specifications for Public Works Construction dated September 1986.

GRADATION AND COMPOSITION

A. The gradation and composition shall meet the requirements of Section 34.2(D) of the County of Hawaii Standard Specifications for Public Works Construction dated September 1986. The asphalt concrete shall be Mix #3 (Medium)

JOB MIX-FORMULA

A. The submittal and approval of the Job Mix shall meet the requirements of Section 34.2(E) of the County of Hawaii Standard Specifications for Public Works Construction dated September 1986.

PART 3 - EXECUTION

PERFORMANCE

A. The mixing, preparation, hauling, placement, and finishing shall meet the requirements of Section 34.3 of the County of Hawaii Standard Specifications for Public Works Construction dated September 1986.

CONCRETE SIDEWALK, CURB AND GUTTER,

AND ACCESSIBLE RAMP

PART 1 - GENERAL

DESCRIPTION

A. The work of this section consists of constructing concrete sidewalks, constructing of existing curbs and gutters, and constructing concrete accessible ramps.

SUBMITTALS

A. In compliance with Paragraph 5.3.2 of ASTM C94-90, furnish statement of composition of concrete mix and evidence that mix meets specified quality.

QUALITY ASSURANCE:

Contractor shall arrange and pay for concrete tests to be made by an independent testing laboratory acceptable to the Contracting Officer. Laboratory shall take, prepare, and cure samples, and do all field and laboratory testing. Promptly submit three copies of test reports to the Contracting Officer. Testing shall comply with ASTM C94-90.

A. Strength Tests: Strength tests shall be made from each 10 cubic yards of concrete or fraction thereof each day. For each test, three cylinders shall be molded, one to be used for a 7-day test.

B. Air Content and Slump Tests: At the time samples are taken for strength tests, the laboratory shall make slump and air content tests.

PROJECT CONDITIONS

A. Place concrete only when temperatures are above 35 degrees F, unless it is protected from freezing.

PART 2 - PRODUCTS

SELECT FILL

A. Dense, readily compactable material, free from vegetable matter and lumps of clay. Excavated material that meets this requirement may be used if approved.

AGGREGATE BASE COURSE

A. Aggregate base material shall meet the requirements of Section 02232.

CONCRETE

A. Materials: Materials, including cement, aggregates, water, and admixtures, shall meet the requirements of ASTM C94-90.

1. Cement: Type I.

2. Coarse Aggregate: Maximum size, 1-inch for hand methods, 3/4-inch for slip-form construction, and 1/2-inch for extruded curbs. For machine placed concrete, Contractor may, with Contracting Officer's approval, modify the aggregate grading specified in ASTM C94-90 to meet the recommendations of the manufacturer of the machine.

3. Welded steel wire fabric for concrete reinforcement; AASHTO M 55.

4. Reinforcing Fibers: Concrete Engineered Reinforcing fibers shall be polypropylene, collated, fibrillated fibers from Fibermesh Co., 4019 Industry Drive, Chattanooga, TN 37416, Phone (423) 892-7243 Colorado Rep. (303) 973-0888, or approved equal.

B. Quality: Furnish concrete under Option A, ASTM C94-90.

Total Average Air Content: 5.0 percent.

Slump:

C. Manufacture and Delivery: Measurement of materials, batching, mixing, transporting, and delivery shall be as specified in ASTM C94-90. Discharge concrete into forms within 1-1/2 hours after introduction of water to cement. When temperature of concrete is 85º F or above, the time between introduction of water to cement and complete discharge of concrete into forms shall not exceed 45 minutes.

D. Air Entraining Admixture: ASTM C260-86. No chlorides will be permitted. Other admixtures complying with ASTM C494-, 86 or ASTM C618-89a may be used with approval of Contracting Officer. No chlorides will be permitted.

EXPANSION JOINT FILLERS

A. ASTM D-1751, pre-molded, non-extruding, 3/4-inch thick.

MORTAR

A. One part portland cement and two parts fine aggregate.

CURING COMPOUND

A. ASTM C309-89, Type 1, Class A.

PREPARATION OF SUB-GRADE

A. Excavate to required depth. Remove soft, yielding material and replace with select fill. Compact to a density of not less than 95 percent of the maximum density as determined by AASHTO T99-94, Method D.

BASE COURSE

A. Place and compact aggregate base course to density requirements of Section 02232.

MAINTENANCE OF SUB-GRADE

A. Maintain sub-grade in a compacted condition until concrete is placed.

FORMS

A. Metal or uniform warp-free lumber, coated with form release agent. Grade forms to give slabs positive drainage and stake securely. Obtain approval of alignment and grade before placing concrete. The Government shall designate in the field which sections are in-fall and out-fall for drainage.

PLACING

A. Concrete slabs for walks shall be formed, placed, vibrated, and finished by hand using conventional methods. Concrete curbs or curbs and gutters may be constructed in the same manner, but Contractor has the option of machine placing curbs using the extrusion method or machine placing curb and gutter using the slip-form method.

B. Place concrete on moistened sub-grade monolithically between construction joints. Deposit to full depth in one operation. Consolidate immediately. After depositing concrete, screed and darby or bullfloat.

FORM REMOVAL

A. Remove forms within 24 hours after concrete placement. Repair minor defects with mortar. Plastering will not be permitted on exposed faces.

SIDEWALK/RAMP FINISHING

A. After darbying or bullfloating, stop finishing until bleeding has ceased and until concrete can support foot pressure with only about 1/4-inch indentation. Edge and joint, then float the slab. Use steel trowel to densify surface, then broom slab perpendicular to line of traffic. Course broom shall produce grooving 3/16” deep on ½” centers. Medium broom shall produce grooving 1/8” deep.

JOINTS

A. Construct joints true to line with faces perpendicular to surface.

1. Isolation Joints: Separate walks from walls, stairways, and other structures, using expansion joint fillers.

2. Contraction (Control) Joints: Space walk joints at intervals about equal to width of walk to a depth of one-fourth the slab thickness. Space curb and gutter joints not over 10 feet 0 inches on center, and align them with sidewalk joints. Contraction joints shall be tooled.

a. Tooled: Form plane of weakness by inserting and later removing a metal divider, finish with an edger or a groover, or by saw cutting a previously tooled joint.

CURING

A. Using curing compound or curing materials, thoroughly cure and protect concrete keeping the surface moist for 7 days. Cure slabs with integral color in accordance with instructions of the pigment manufacturer.

FIELD QUALITY CONTROL

A. Surfaces shall not vary more than 5/16 inch when tested with a 10-foot straightedge.

CONCRETE SIDEWALK, CURB AND GUTTER, AND ACCESSIBLE RAMP

PAVEMENT MARKINGS

SUMMARY

A. This Section shall consist of furnishing and painting traffic markings on a finished paved area.

PART 2 - PRODUCTS

REQUIREMENTS

A. Traffic paint shall be the alkyd resin type, ready-mixed white or yellow, Type III, meeting the requirements of AASHTO M 248. Glass beads shall meet the requirements of AASHTO M 247, Type I, moisture resistant with flotation properties. Thermoplastic marking material shall conform to AASHTO M 249. The paint color and type (single, double or edge striping on both sides) shall be as DESIGNATED in the SCHEDULE OF ITEMS.

PART 3 - EXECUTION

PERFORMANCE

A. The area to be painted shall be dry, clean, and free of loose particles. The paint machine shall be of the spray type, capable of uniformly applying the paint under pressure through nozzles spraying directly upon the pavement. Each machine shall be capable of simultaneously applying three separate stripes, either solid or skip. Each paint tank shall be equipped with a mechanical agitator. Each nozzle shall be equipped with cutoff valves that will apply broken or skip lines automatically. A mechanical bead dispenser that will distribute the beads in a uniform pattern at the rate specified shall be located directly behind and synchronized with the spray nozzle. Each nozzle shall also be equipped with line guides consisting of metallic shrouds or air blasts.

B. The contractor shall be responsible for preliminary spotting of the lines to be painted and approval by the Engineer must be obtained before striping may begin.

C. Painted traffic marking details not SHOWN IN THE DRAWINGS shall meet the requirements of MUTCD.

D. Stripes shall be 2 inches wide. Broken line segments (dashed or skip traffic stripe) shall be 10 feet in length with 30-foot gaps, or 2 feet in length with 6-foot gaps as SHOWN ON THE DRAWINGS.

E. Arrows and letters shall be of the dimensions as SHOWN ON THE DRAWINGS.

F. The paint shall be thoroughly mixed prior to application, and shall be applied when the air temperature is above 40 F.

G. The rate of application for 4-inch wide solid traffic stripes shall be at least 19.2, but not more than 21.1, gallons per mile. For broken traffic striping the rate of application shall be at least 4.8, but not more than 5.3, gallons per mile.

H. For narrower or wider striping, paint shall be applied at a rate in proportion with the 4-inch stripes.

I. The minimum rate of application for arrows and letters shall be 0.01 gallon per square foot of markings.

J. Glass beads shall be applied at a minimum rate of 6 pounds of beads for each gallon of paint and shall be applied by dropping on the fresh paint.

K. The painted area shall be protected from traffic until the paint is thoroughly dry.

L. All markings shall present a clean-cut, uniform appearance. All markings that fail to have a uniform appearance, either day or night, shall be corrected by the contractor.

PAVEMENT MARKINGS

ASPHALT CURB OR CURB & GUTTER

PART 1 - GENERAL

SUMMARY

A. This work shall consist of the construction or resetting of curb, gutter, or combination curb and gutter.

PART 2 – PRODUCTS

BITUMINOUS CURB

A. Bituminous curb materials shall meet the specifications for the underlying bituminous materials.

PART 3 – EXECUTION

BITUMINOUS CONCRETE CURBING

A. Preparation of Bed:

1. When curbing is to be constructed on a cured or aged Portland cement concrete base, on bituminous pavement, or on a bituminous-treated base, the bed shall be thoroughly swept and cleaned by compressed air. The surface shall be thoroughly dried and, immediately before placing of the bituminous mixture, shall receive a tack coat of bituminous materials. The rate of application of the tack coat material shall be between 0.05 and 0.15 gallon per square yard of surface. The contractor shall prevent the tack coat from spreading to areas outside of the area to be occupied by the curb.

B. Placing:

1. Bituminous curbing shall be constructed by use of a self-propelled, automatic curber or curb machine or a paver with curbing attachments. The automatic curber or machine shall meet the following requirements:

a. The weight of the machine shall be such that compaction is obtained without the machine riding above the bed on which curbing is constructed.

b. The machine shall form curbing that is uniform in texture, shape, and density.

c. The construction of curbing by means other than the automatic curber or machine is acceptable when short sections or sections with short radii are required. The resulting curbing shall conform in all respects to the curbing produced by the use of the machine.

C. The mixture shall be placed only when the bed is dry and weather conditions are suitable for the proper handling and finishing of the mixture.

D. The bituminous mixture shall be placed at a workable temperature of not less than 225 F. The curbs shall be placed to an accurate alignment and shall have a high density free of honeycombs. When joining to a section of curb that has become cold, the contact surface of the cold curb shall be given a thin uniform tack coat of bituminous material prior to placing the fresh bituminous mixture against the cold joint. The curbs shall be protected from traffic by barricades or other suitable method until the curb has hardened.

ASPHALT CURB OR CURB & GUTTER

FENCES AND GATES

SUMMARY

A. This work shall consist of furnishing and installing, or installing only, fences and gates.

PART 2 – PRODUCTS

REQUIREMENTS

A. Materials shall meet the requirements of the following:

1. Barbed Wire: Galvanized barbed wire shall meet the requirements of ASTM A 121. Aluminum coated barbed wire shall meet the requirements of ASTM A 585, with Type I (Aluminum Coated) or Type II (Aluminum Alloy) barbs at the option of the manufacturer.

2. Woven Wire: Galvanized woven wire fence shall meet the requirements of ASTM A 116. Aluminum coated woven wire fence shall meet the requirements of ASTM A 584.

3. Fence Posts:

a. Wood post details and dimensions shall be as SHOWN ON THE DRAWINGS. All wood posts shall be of sound, seasoned wood, peeled and with ends cut. The posts shall be straight and all knots trimmed flush with the surface. Where treated posts are called for, the kind and type of treatment shall meet the requirements in this specification. The requirements for peeling may be omitted for red cedar posts or bracing.

4. Preservative Treatments:

a. Timber preservatives and treatment methods shall meet the requirements of AASHTO M 133. The type of treatment to be used and minimum net retention of preservative will be SHOWN ON THE DRAWINGS.

b. All treated timber shall be completely and accurately fabricated before treatment. Except for Southern Pine, all surfaces greater than 2 inches in width shall be incised before treatment.

c. Retentions of preservatives in all lumber and timbers shall be determined by the assay method.

5. Galvanized Metal Gate and Hardware:

a. Galvanized metal gate and hardware shall be as manufactured by Life-Time Gate Company, 18155 SW Teton, Tualatin, Oregon, 97062, 800-468-5531, or approved equal.

B. The Contractor shall provide Certificate of Compliance for gate and fence material for approval.

PART 3 – EXECUTION

FENCES & GATES

A. Trees, brush, and other obstacles along the fence line that interfere with the fence shall be removed. Continuous grubbing or grading along the fence line shall not be done. Where possible, the fence shall be erected on natural ground. The clearing width and disposal of materials shall be off National Forest lands.

B. When drilling into solid rock is required to set a post, the post may be shortened, provided a minimum of 12 inches of post is grouted into the rock.

C. When posts, braces, or anchors are to be embedded in concrete, temporary guys or braces shall be installed as required to hold the posts in proper position until the concrete has set. No materials shall be installed on posts or strain placed on guys and bracing set in concrete until 48 hours have elapsed from the time the concrete was placed.

D. All posts shall be set vertically and to the grade and alignment SHOWN ON THE DRAWINGS. Tops of posts shall not be cut unless approved by the CO.

E. Wire or fencing shall be stretched taut and firmly attached to the posts and braces as SHOWN ON THE DRAWINGS.

F. The bottom of the fence shall generally follow the contour of the ground. Grading shall be performed where necessary to provide a neat appearance. Where abrupt changes in the ground profile make it impractical to maintain the specified ground clearance, longer posts may be used and multiple strands of barbed wire stretched thereon. The vertical spacing between strands of barbed wire shall match the existing fence.

G. Existing main entrance gate shall only be removed during the time construction activities require it to be removed. Contractor shall minimize and limit the time the gate is removed for security of the site.

FENCES AND GATES

WHEELSTOP (PRECAST CONCRETE)

PART 1 - GENERAL

DESCRIPTION

A. This work shall consist of furnishing and installing precast concrete wheel stops at the main house.

PART 2 - PRODUCTS

REQUIREMENTS

A. Precast Concrete Wheel stops - The wheel stops shall be standard 5 inches x 9 ¼” inches wheel stops and 6 feet in length.

PART 3 - EXECUTION

PERFORMANCE

A. Wheelstops shall be placed at the location staked on the ground by the Contracting Officer.

WHEELSTOP (PRECAST CONCRETE)

REINFORCED CONCRETE DRIVEWAY AND CONCRETE APRON

PART 1 - GENERAL

SUMMARY

M. This Section includes cast-in-place concrete, including reinforcement, concrete materials, mix design, placement procedures, and finishes.

SUBMITTALS

A. Product Data: For each manufactured material and product indicated.

B. Design Mixes: For each concrete mix indicated.

PART 2 - PRODUCTS

MATERIALS

A. Formwork: Furnish formwork and form accessories according to ACI 301.

B. Steel Reinforcement:

1. Reinforcing Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), deformed.

2. Plain-Steel Wire: ASTM A 82, as drawn.

C. Concrete Materials:

1. Portland Cement: ASTM C 150,…