Attachment 5 Supplemental Specifications.pdf

805 MOBILIZATION 3

805 MOBILIZATION (5/97)

1. DESCRIPTION

This Section consists of one or more mobilizations of personnel, equipment, supplies, and incidentals to the project site, or sites listed in the Schedule of Items.

2. MEASUREMENT

When the contract establishes separate work periods within the contract time any additional mobilization included as a Bid Item will be retained until the actual work period.

3. PAYMENT

a. Progress payments will be made on the basis of the Bid Items contained in the Schedule of Items as follows:

1) When five (5) percent of the estimated contract amount in the work period is earned, fifty

(50) percent of the amount of mobilization will be paid.

2) When twenty-five (25) percent of the estimated contract amount in the work period is earned, one hundred (100) percent of the amount for mobilization will be paid.

3) The total sum of all payments under this Section shall not exceed 10% of the total contract amount

4) The contract amount for mobilization shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals involved in mobilization.

b. Payment will be made under:

Pay Item Description Pay Unit

805 (1) Mobilization work period from __________ to

Each

807 EQUIPMENT RENTAL 1

807 EQUIPMENT RENTAL (5/97)

This Section establishes the basis for the Government to order road maintenance work not otherwise under the contract.

2. PRE-W ORK REQUIREMENTS

Prior to the initial Start Work Notice to Proceed the Contractor shall provide the Government with a listing of equipment that will be available for work under this Section, proposed rental rate, and projected periods when the equipment is not otherwise obligated to contracts other than Government.

3. EQUIPMENT

a. Equipment shall be weed free before used on National Forest System Lands

b. Equipment under this Section, shall be provided fully operated by the Contractor and includes subcontractor equipment performing work under the contract. A competent qualified operator shall be provided by the Contractor; however, the rental rate shall not include operator's wages.

c. The Government will review the proposed rates and those common to the area for this type of use. Mutually agreed rates will be established and set forth by Modification. Work Orders may be issued as needed to obtain work under this Section.

4. DELIVERY OF EQUIPMENT TO SITE

The Government, in conjunction with the Contractor, will determine if equipment is to be moved onto and off the site by roading under its own power or by use of Contractor's truck transport. The Work Order will include the method of moving as roading or transport. Subsequent moving of equipment from one portion of the emergency job to another shall be by roading unless otherwise documented in the Work

Order.

5. HOURS OF OPERATION

Hours of operation shall be the same as for the Contractor's regular work shift, unless otherwise directed in writing by the Government.

6. TIMEKEEPING AND COMPENSATION

807 EQUIPMENT RENTAL 2

a. The Government will maintain a daily record showing the actual hours, to the nearest half (1/2) hour, that the equipment is in operation performing work under this item.

b. Time for equipment roading will commence with the beginning of the move. Time will be counted for the operator during roading.

c. Time for equipment transported will be in accordance with the appropriate of the following:

1) When equipment is not being actively used on the contract at the time moving is ordered under this Section, time will be counted for the transporting vehicle, but not the equipment being transported.

2) Where work under this contract is interrupted for ordered performance under this Section, time will be counted for the transporting vehicle and the equipment that would otherwise have been operating.

d. The equipment hours recorded will be paid for at the agreed rate. Labor costs paid for under this Section will be those paid by the Contractor under this contract.

7. MEASUREMENTS

a. The accepted quantities will be paid at the established hourly rate, rounded to the nearest half (1/2) hour, that the equipment is in operation.

b. Non-operable equipment or equipment dependent on another piece of non-operable equipment will not be paid for.

c. Hours of operation shall be the same as for the Service Provider’s regular work shift, unless otherwise directed in writing by the Contracting Officer.

d. Moving of equipment will be paid at the established hourly rate

8. PAYMENT

a. The quantities measured and accepted will be paid for at the contract unit price shown in the Schedule of Items.

807 (1) Equipment, Type ___________ Hour

807 (2) Excavator Hour

807 (3) Backhoe Hour

807 EQUIPMENT RENTAL 3

807 (4) Grader Hour

807 (5) Crawler Tractor Hour

807 (6) Dump Truck Hour

807 (7) Brush Cutter Hour

807 (8) Drilling Rig Hour

807 (9) Roller Hour

807 (10) Trailer Hour

811 BLADING 1

811 BLADING (5/97)

This work consists of surface blading native or aggregate roadbed to a condition to facilitate traffic and provide proper drainage. Blading includes shaping the crown or slope of traveled way, berms, and drainage dips in accordance with this specification.

2. MAINTENANCE REQUIREMENTS

a. Timing

1) Surface blading shall be performed during the contract period as ordered by the Government. Contractor shall commence surface blading within two (2) contract days after receipt of written order unless otherwise stated in the order.

b. General

1) The existing traveled way and shoulders, including turnouts unless otherwise ordered, shall be bladed and shaped to produce a surface which is uniform, consistent to grade, and crowned or cross-sloped as indicated by the character of the existing surface unless otherwise shown in the Road Listing, to at least one half inch (1/2") per foot of width, but not more than three quarter inch (3/4") per foot of width. Surfacing materials shall be thoroughly loosened to no less than 2 inch depth or the depth of potholes or corrugations. Scarification to facilitate cutting to the full depth of potholes or corrugations may be elected by the Contractor but will be considered incidental to blading. Scarification shall not go deep enough to cause contamination of the surfacing.

2) When Section 891 is included in the Road Listing, the Contractor shall apply water during blading when sufficient moisture is not present to prevent segregation. Water supply, hauling, and application shall be in accordance with Section 891 and shall be incidental to blading unless Pay Items for Section 891 are included in the Schedule of Items.

3) Existing native, rock or aggregate surfaced drainage dips shall be shaped incidental to blading to divert surface runoff to existing outlet devices, ditches and discharge locations.

4) The Contractor shall establish a blading pattern which provides a uniform driving surface, retains the surfacing on the roadbed and provides a thorough mixing of the materials within the completed surface width. Upon final blading, no disturbed rock shall protrude more than two (2) inches above the adjacent surface unless otherwise provided in the contract.

Material not meeting this dimension shall be removed and placed outside the roadbed so as not to obstruct drainage ways or structures. This material may be scattered off the roadbed if there is free drainage.

c. Routine Blading

811 BLADING 2

1) Upon completion of blading, the surfaces shall conform to the dimensions shown in the Special Project Specifications 811-3.

2) Roadbed width in excess of the dimensions shown shall be shaped only as needed to provide drainage away from the traveled way. Established grasses and other vegetation shall not be removed from the excess width except as incidental to providing drainage or unless otherwise provided in the contract.

d. Compaction

1) Roads requiring compaction will be included in the Road Listing. Compaction shall be performed in accordance with Special Project Specification 811-1.

e. Intrusions

1) Where the minimum width shown in the Special Project Specifications is not available, the Contractor will construct berms where ordered and marked on the ground. Material to provide berms will come from sources designated in the Special Project Specifications.

f. Undercutting

2) Roadway back slope shall not be undercut.

g. Intersections

1) At intersections, the roadbeds of side roads which are not closed or restricted from vehicular use shall be bladed to assure smooth transitions.

2) Field evidence of closure or restrictions shall be considered to be signing, cross ditching in the road surface (traveled way), earth berms or other devices placed to discourage or eliminate use by passenger cars, also roads listed for work under Sections 835 or 838 shall be considered restricted.

3) Side roads listed for work under this Section shall be considered as not restricted.

h. Cleaning of Structures

1) Materials resulting from work under this Section shall not be allowed to remain on or in structures, such as bridges, culverts, cattleguards, or drainage dips.

i. Berms

1) Existing berms shall be maintained to the condition of adjacent segments when ordered by the Government.

3. MEASUREMENT

Measurement under this Section will be made by the total number of units for each item listed in the

Schedule of Items completed and accepted.

811 BLADING 3

a. Measurement for blading will be single-lane mile measured along the centerline of the roadway (see quantity measurement terms). Two-lane roads will be measured as two (2) single-lane miles. Measurement will be measured to the nearest one-tenth (0.1) mile.

b. Each intersection bladed under 2.g. will be equivalent to one-tenth (0.1) single-lane mile;

however, when the intersecting side road is scheduled for subsequent blading under this Section, no measurement will be made.

c. Berm maintained or established will be measured by linear foot.

4. PAYMENT

a. The quantities measured and accepted will be paid for at the contract unit price shown in the Schedule of Items.

811 (1) Blading Surfaced Roads Single-Lane

Mile

811 (2) Blading Native and Pit Run Roads Single-Lane

Mile

811 (3) Berm Maintained Linear Foot

811 (4) Establishing Berms Linear Foot

811-1 SPECIAL PROJECT SPECIFICATIONS, BLADING 1

SPECIAL PROJECT SPECIFICATION

811-1 BLADING (5/97)

Add the following:

Compaction is required when shown on the road listing.

2. MAINTENANCE REQUIREMENTS

d. Compaction - add the following:

2) Unless Compaction Method B is included in the Schedule of Items and Road Listing, all traveled ways requiring compaction shall be compacted by Method A.

Compaction shall commence immediately following blading. Compaction methods are:

a) Compaction Method A: By breaking track while operating equipment on the traveled way.

b) Compaction Method B: 8-10 ton pneumatic, steel or equivalent vibrating roller, operated to cover the full width two (2) times

3. MEASUREMENT

No measurement will be made under this Section for Compaction Method A. Measurement for

Compaction Method B will be the same as stated in 3.a for blading.

4. PAYMENT

811 (5) Blading Compaction – Method B Single-Lane

Mile

813 SPOT SURFACING 1

813 SPOT SURFACING (5/97)

This work consists of placing surface aggregate as staked on the ground, or designated by the

Government. It includes preparing the area, furnishing, hauling, and placing all necessary materials and other work necessary to blend with the adjacent road cross section.

2. MATERIALS

a. Materials will be Government furnished when stated in Special Project Specifications.

b. Materials furnished by the Contractor shall conform to the gradation requirements shown in the Special Project Specifications and the quality requirements of Section 893.

3. MAINTENANCE REQUIREMENTS

a. The area to be spot surfaced shall be thoroughly loosened to a minimum depth of one inch (1") prior to placement of aggregate.

4. MIXING AND PLACING

a. When scheduled coincident with work under Section 811, spot surfacing and existing aggregate, when ordered, shall be mixed with water until a uniform mixture is obtained prior to final shaping and compaction.

b. The material shall otherwise be spread on the prepared area in layers no more than four (4) inches in depth. When more than one (1) layer is required, each layer shall be shaped and compacted before the succeeding layer is placed. Upon completion, the spot surfacing shall reasonably conform to the adjacent cross section and provide smooth transitions in the road profile.

c. Compaction shall be accomplished by breaking track while operating equipment on the traveled way

5. MEASUREMENT

a. The quantity will be the number of cubic yards measured in the vehicles, or square yards of aggregate placed, whichever is shown in the Schedule of Items.

813 SPOT SURFACING 2

b. Hauling is considered incidental.

6. PAYMENT

a. The accepted quantities will be paid for at the contract unit prices shown in the Schedule of Items

813 (1) Spot Surfacing, Grading Cubic Yard

813 (2) Spot Surfacing, Grading Square Yard

891 WATER SUPPLY AND WATERING 1

891 WATER SUPPLY AND WATERING (5/97)

This work consists of providing facilities to furnish an adequate water supply, hauling and applying water, including times outside normal work hours.

2. MATERIALS

Suitable and adequate water sources and use restrictions are designated in the Drawings or Special

Project Specifications. If the Contractor elects to provide water from other than designated sources, the

Contractor shall be responsible to obtain the right to use the water including any cost for royalties involved. The rate of applications shall be based on the gallons per mile ordered by the Government.

3. EQUIPMENT

a. Mobile watering equipment shall have watertight tanks of known capacity. If tank capacity is not known, it shall be measured and certified by the Contractor prior to use.

b. Positive control of water application is required. Equipment shall provide uniform application of water without ponding or washing.

c. An air gap or positive anti-siphon device shall be provided between the water source and the vehicle being loaded if the vehicle has been used for other than water haul if the source is a domestic potable water supply, or the water is used for tank mixing with any other materials.

d. The designated water sources may require some work prior to their use. Such work may include cleaning ponded areas, installing temporary weirs, or sandbags, pipe repair, pump installation or other items appropriate to the Contractor's operations. Flowing streams may be temporarily sandbagged or a weir placed to pond water. Contractor shall obtain approval on improvements for sandbags or weirs prior to placement.

4. MEASUREMENT

a. Unless specified in the Schedule of Items, development of water supply sources shall be incidental to work ordered. If in the Schedule of Items, measurement for development of water supply sites will be the number of sites ordered and accepted. When the Contractor elects to furnish water from other than the site designated, the elected source will be measured as a water supply site.

891 WATER SUPPLY AND WATERING 2

b. Unless specified in the Schedule of Items as watering for a specific Section of these specifications, measurement of water haul and application will be incidental. If indicated in the Schedule of Items, measurement shall be M-GALLONS (1,000 gallons) using calibrated tanks, distributors, or accurate water meters furnished by the Contractor. Hauling shall be incidental.

In no case will payment be made for more gallons than ordered by the Government.

5. PAYMENT

a. The accepted quantities will be paid for at the contract unit price shown in the Schedule of Items.

891 (1) Developing Water Supply Sites Each

891 (2) Water For Section ______________ M-Gallons

893 AGGREGATE 1

893 AGGREGATE (5/97)

1. GRADATIONS

a. Gradations for aggregates are included in Special Project Specifications for contracts where the aggregates are not provided by the Government.

b. The inclusion of aggregate gradations does not constitute a warranty by the Government that commercial sources in the area are producing the gradation indicated. Aggregates commercially produced to meet State or County gradations and specifications for similar materials will be considered an equal alternate to the gradation in the contract provided the following quality requirements are met. Contractor shall provide testing and certification of supplied materials.

2. AGGREGATE FOR BITUMINOUS PLANT-MIX

a. Coarse Aggregate - Coarse aggregate (retained on the No. 8 sieve) shall be crushed stone or crushed or natural gravel and shall conform to the quality requirements of AASHTO M 63.

Gradation shall conform to the provisions of the Special Project Specifications.

b. Fine Aggregate - Fine aggregate (passing the No. 8 sieve) shall be manufactured and conform to the quality requirements of AASHTO M 29 (ASTM D 1073). It shall be of such a gradation that when combined with the other required aggregate fractions in the proper proportion, the resultant mixture will meet the gradation required.

3. AGGREGATE FOR BITUMINOUS ROAD MIX

a. Aggregates for bituminous road mix shall be crushed stone, or crushed or natural gravel which meets the quality requirements of AASHTO M 62 or M 63 for the specified gradation, except the sodium sulfate soundness loss shall not exceed 9 percent. The swell test will not be required.

b. Gradation shall be as shown in the Special Project Specifications. When crushed gravel is used, not less than 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face.

4. AGGREGATE FOR SPOT SURFACING

a. Aggregates for spot surfacing shall be crushed stone, crushed slag, or crushed or natural gravel which conforms to the quality requirements of AASHTO M 147, or as specified in the Special Project Specifications, except as noted below: The requirements of M 147 shall apply, except that the liquid limit shall not exceed 35 and the plasticity index shall be not be less than 4 nor more than 9.

893 AGGREGATE 2

b. Aggregate gradation shall conform to the provisions of the Special Project Specifications and

AASHTO M 147.

c. When crushed gravel is used, not less than 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face.

d. Gradations of each designated size of aggregates shall be obtained by crushing, screening, and blending processes as may be necessary.

e. Materials otherwise meeting the requirements of this subsection will be acceptable whenever the gradations of such materials are within the tolerances corresponding to the selected sieve sizes required by the Special Project Specifications and whenever such materials produce a compacted course meeting density requirements as specified in Specification Section 811(2)(e).

5. AGGREGATE FOR BITUMINOUS CONCRETE - GENERAL

a. Coarse Aggregate

1) Coarse aggregate (retained on the No. 8 sieve) shall be crushed stone, crushed slag, or crushed or natural gravel, and unless otherwise stipulated, shall conform to the quality requirements of AASHTO M 79.

2) Lightweight aggregate, if required or permitted by the Special Project Specifications, shall meet the requirements of AASHTO M 195.

3) When crushed gravel is used, it shall also meet the requirements of Section 2.1 of AASHTO M 62 and not less than 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face. The coarse aggregate shall be of such gradation that when combined with other required aggregate fractions in proper proportion, the resultant mixture shall meet the gradation required under the composition of mixture for the specific type under contract.

b. Fine Aggregate

1) Fine aggregate (passing the No. 8 sieve) shall consist of natural sand, stone screenings, or slag screenings, or a combination thereof, and unless otherwise stipulated shall conform to the quality requirements of AASHTO M 29 (ASTM D 1073). Fine aggregate shall be of such gradation that when combined with other required aggregate fractions in proper proportion, the resultant mixture shall meet the gradation required under the composition of mixture for the specific type under contract.

2) Lightweight aggregate If required or permitted by the Special Project Specifications, shall meet the requirements of AASHTO M 195.

6. AGGREGATE FOR BITUMINOUS HOT PLANT-MIX

a. The provisions of 5(a) and 5(b) herein shall apply.

893 AGGREGATE 3

b. The several aggregate fractions for the mixture shall be sized, and blended to meet one of the grading requirements of the Special Project Specifications as specified on the drawings.

7. AGGREGATE FOR COLD PLANT-MIX BITUMINOUS PAVEMENT

a. The provisions of 6(a) and 6(b) herein shall apply.

1) Aggregate for Pavement - The several aggregate fractions for the mixture shall be sized, graded, and combined in such proportions that the resulting composite blend meets one of the grading requirements of the Special Project Specifications as specified on the drawings.

2) Aggregate for Top Dressing

a) The material for the top dressing shall consist of dry sand, stone screenings, or slag screenings meeting the grading requirements of the Special Project

Specifications as specified on the drawings.

b) Lightweight aggregate, if required or permitted by the Special Project

Specifications, shall meet the pertinent requirements of AASHTO M 195.

8. AGGREGATE FOR ROAD MIX BITUMINOUS PAVEMENT

a. Aggregates for road mix bituminous pavement construction shall be crushed stone, crushed slag, or crushed or natural gravel which meet the quality requirements of AASHTO M 62 or M 63 for the specified gradation, except that the sodium sulfate soundness loss shall not exceed 12 percent.

b. When crushed gravel is used, at least 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face. Gradation shall conform to the grading requirements of the Special Project Specifications as specified on the drawings.

c. Lightweight aggregate, if required or permitted by the Special Project Specifications, shall meet the pertinent requirements of AASHTO M 195.

9. AGGREGATE FOR COVER COATS, SURFACE TREATMENTS, AND BITUMINOUS

PRESERVATIVE TREATMENT

a. Aggregates shall meet the quality requirements of AASHTO M 78.

b. When tested in accordance with AASHTO T 182 (ASTM D 1664), aggregate shall have a retained bituminous film above 95 percent.

c. Aggregates which do not meet this requirement may be used for bituminous surface treatments and seal coats provided an approved chemical additive or wetting agent is used to provide a water resistant film.

893 AGGREGATE 4

d. Lightweight aggregate if required or permitted by the Special Project Specifications, shall meet the pertinent requirements of AASHTO M 195.

e. When crushed gravel is used, not less than 50 percent by weight of the particles retained on the No. 4 sieve shall have at least one fractured face. Aggregates shall meet one of the grading requirements of the Special Project Specifications.