Attachment4_Specifications_FSSS.pdf

Contents

PREFACE

Section 101. – TERMS, FORMAT, AND DEFINITIONS Section 102. - BID, AWARD, AND EXECUTION OF CONTRACT Section 103. – SCOPE OF WORK Section 104. – CONTROL OF WORK Section 105. – CONTROL OF MATERIAL Section 106. – ACCEPTANCE OF WORK Section 108. - PROSECUTION AND PROGRESS Section 109. - MEASUREMENT AND PAYMENT Section 153. – CONTRACTOR QUALITY CONTROL Section 201. - CLEARING AND GRUBBING Section 202. – ADDITIONAL CLEARING AND GRUBBING Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS Section 204. – EXCAVATION AND EMBANKMENT Section 209. – STRUCTURE EXCAVATION AND BACKFILL Section 301. - UNTREATED AGGREGATE COURSES Section 302. - CRUSHED AGGREGATE Section 303. – ROAD RECONDITIONING Section 602. – CULVERTS AND DRAINS ................................. Error! Bookmark not defined.

Section 642. – Concrete Septic Holding Tank

643. – Precast Concrete Vault Toilet Section 703. - AGGREGATE Section 705. - ROCK Section 705.07. - WEIR BOULDERS Section 705.08. - STREAM SIMULATION ROCK Section 935 - ROCK RETAINING WALLS

PREFACE

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-24 for construction of National Forest System Roads. The Forest Service Supplemental Specifications (FSSS) shall be incorporated in the FP-24. The applicable specifications for the project will be the FP-24 as modified by the FSSS.

Section 101. – TERMS, FORMAT, AND DEFINITIONS

Add the following paragraph to Subsection 101.01 Meaning of Terms:

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

Add the following to Subsection 101.03 Abbreviations:

(a) Acronyms.

AGAR — Agriculture Acquisition Regulations

AFPA — American Forest and Paper Association

FSSS – Forest Service Supplemental Specifications

MSHA — Mine Safety and Health Administration

NESC — National Electrical Safety Code

WCLIB — West Coast Lumber Inspection Bureau

(d) Miscellaneous unit abbreviations.

MP - milepost location ppm - parts per million volume

STA – station location

MFBM - thousand feet board measure volume

Make the following changes to Subsection 101.04 Definitions:

Delete these definitions and replace with the following:

Bid Schedule — The Schedule of Items.

Bridge — A structure, including supports, erected over a depression or an obstruction such as water along a road, a trail, or a railway and having a deck for carrying traffic or other loads.

Contractor — The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “Purchaser”.

Culvert — Any structure with a bottom, regardless of fill depth, depth of invert burial, or presence of horizontal driving surface, or any bottomless (natural channel) structure with footings that will not have wheel loads in direct contact with the top of the structure.

Drawings —Design sheets or fabrication, erection, or construction details submitted to the CO by the Contractor.

Neat Line — A line defining the proposed or specified limits of an excavation or structure.

Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work. (Timber Contracts) does not apply, replace NTP with Contract Award.

Right-of-Way — A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Add the following definitions:

Adjustment in Contract Price — “Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change — “Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Forest Service — The United States of America, acting through the Forest Service, U.S. Department of Agriculture.

Forest Service Supplemental Specifications – The Forest Service uses supplemental specifications to modify the FP-24 to meet the agency needs and intents. FSSS revise the FP-24 by adding, deleting, replacing, revising, replacing part of entire sections or subsections or adding new sections to the FP..

Pioneer Road — Temporary construction access built along the route of the project.

Purchaser — The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse — A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order — An order affecting and controlling traffic on roads under Forest Service jurisdiction.

Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Utilization Standards — The minimum size and percent soundness of trees described in Public Works contract specifications or Timber Sale and stewardship contract provisions to determine merchantable timber.

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms

Section 102. - BID, AWARD, AND EXECUTION OF CONTRACT

Delete Section 102 Bid, Award, and Execution of Contract in its entirety.

Section 103. – SCOPE OF WORK

Delete all of Section 103 Scope of Work except Subsection 103.01 Intent of Contract.

Section 104. – CONTROL OF WORK

Delete Subsection 104.07 Coordination of Contract Documents.

Add the following Subsection 104.12 Use of Roads by Contractor:

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

Section 105. – CONTROL OF MATERIAL

Delete second paragraph and subparagraphs (a) and (b) in Subsection 105.05 Use of Material Found in the Work and replace it with the following:

The right to use and process material found in the work excludes the use and processing of material for nongovernment contract work, except for the disposal of waste material. Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. Place excess material at government-approved agreed to location(s), at no additional cost to government.

Section 106. – ACCEPTANCE OF WORK

Delete the 3rd and 4th paragraphs in Subsection 106.01 Conformity with Contract Requirements.

Section 108. - PROSECUTION AND PROGRESS

Delete Section 108 Prosecution and Progress in its entirety.

Section 109. - MEASUREMENT AND PAYMENT

Delete Subsections 109.06 Pricing and Adjustments, 109.07 Estimated Work, 109.08 Progress Payments, and 109.09 Final Payment.

Delete Table 109-1 of Subsection 109.01 Measurement of Work and replace with the following:

Table 109-1Decimal Accuracy of Quantities for PaymentPay Item

Level of Precision

Acre 0.01 Cubic Foot 1 Cubic Yard 1 Cubic Yard Exception - Structure Excavation;

Sheathing; Materials; Bedding, Bed Course, and Backfill, Materials; Gabions;

0.1

Cubic Yard Exception – Concrete; Masonry 0.01 Day 1 Each 1 Gallon 1 Hour 0.1 Linear Foot 1 Linear Foot Exception - Timber, Steel, and Concrete Piles

0.1

M-Gallon 0.1 Mile 0.01 Month 0.1 Pound 1 Square Foot 0.1 Square Yard 0.1 Station 0.1 Thousand Board Feet Measure 0.01 Ton 0.1 Ton Exception - Calcium Chloride; Sodium Chloride;

Hydrated Lime; Bituminous Materials; Pavements; Bed Course Materials

0.01

Week 0.1

Delete Subsection 109.02(c) Measurement Terms and Definitions, Contract quantity and replace with:

(c) Contract quantity. The quantity to be paid is the quantity listed in the bid schedule. The contract quantity will be adjusted for authorized changes that affect the quantity or for errors made in computing this quantity when that error exceeds 15% or more. If there is evidence that a quantity specific as a contract quantity is incorrect by 15% or more, submit calculations, drawings, or other evidence indicating why the quantity is in error and request in writing that the quantity be adjusted.

Section 153. – CONTRACTOR QUALITY CONTROL

Delete Subsection 153.02 Qualifications and replace with the following:

153.02 Qualifications. Submit the following for approval with the quality control plan:

(a) Quality control manager (QCM). Furnish a QCM who has experience in construction, inspection, quality control and material testing on construction projects of similar type and scope.

(b) Testers. Provide testers with at least 1 years' experience in the type of sampling and testing required, and with one of the following for the type of sampling and testing performed:

(1) National Institute for Certification in Engineering Technologies (NICET) Level II certification in construction materials testing for similar material types or equivalent state or industry certification;

(2) Certification by a state or regional certification program, such as Western Alliance for Quality Transportation Construction or Northeast Transportation Technician Certification Program; or

(3) At least 1 year of employment by an AASHTO accredited laboratory performing equivalent sampling and testing with competence according to AASHTO R 18.

Add the following paragraph to the end of Subsection 153.03(b) Quality Control Plan, QC procedures:

Submit written proposals for approval of alternate AASHTO or State approved test methods.

Alternate methods may be allowed based on documented equivalence to the specified method.

Delete Subsection 153.08 Records and Control Charts and replace with the following:

Maintain complete testing and inspection records by pay item number and make them accessible to the

CO.

Section 201. - CLEARING AND GRUBBING

Delete paragraph (c) in Subsection 201.04(c) Clearing and replace with the following:

(c) In areas outside the excavation, embankment, and slope rounding limits, cut stumps to maximum stump height shown in table below.

Fall and buck the merchantable material at lengths longer than the minimum lengths listed, or in multiples thereof (i.e. 8 ft, 16 ft, 24 ft, 32 ft), not to exceed 32 feet in length to allow for transportation of the material. Merchantable timber shall be decked at designated location(s).

Forest Products Utilization Standards:

Species Product Max. Stump Height

Minimum Specifications

Piece Required to be Removed

Length (feet)

Diameter Inside Bark at Small End (inches)

1/

Douglas Fir 7” 6” 8 5.6 10.67

Engelm Spruce 7” 6” 8 5.6 10.67

Subalpine fir 7” 6” 8 5.6 10.67

Lodgepole Pine 6” 6” 8 5.6 10.67

Ponderosa Pine 9” 6” 8 6 10.67

NONSAW/Combined Softwood

4” 6” 16 3” None

1/ Enter Merchantability Factor (Merch. Factor) or Net Scale in % of Gross Scale, whichever is appropriate.

Delete Subsection 201.06 Disposal and replace with the following:

201.06 Disposal. Merchantable timber is Government property. Dispose of clearing and grubbing debris according to Subsection 203.07.

Delete paragraph (c) and (d) of Subsection 201.04 and replace with the following:

201.04 Clearing.

(d) Trim tree branches that extend over the road surface and shoulders to attain a clear height of 15. If required, remove other branches to present a balanced appearance. Trim according to accepted tree surgery practices. Treat wounds with tree wound dressing.

Section 202. – ADDITIONAL CLEARING AND GRUBBING

Add the following to Subsection 202.02:

202.02 Definitions

(a)

(1) Selective Clearing, Type Roadside. Cut all brush and small trees, 4 inches in diameter or less at the point of cut, inside the roadside clearing limits and outside the roadway no higher 6 inches above ground level. If rocks or other obstructions are encountered, cut no higher than 6 inches above the obstruction. Limb live trees with a diameter larger than 4 inches to a height of 15 feet above the road surface.

(c)

(1) Special Clearing and Grubbing, Type Roadway. Clear Within the roadside clearing limits.

Grub the roadway and horizontally 5 feet beyond each shoulder. Dispose of merchantable timber according to Subsection 201.06

Replace the third paragraph of Subsection 202.03 with the following:

Cut trees to within 6 inches of the existing ground. Remove and dispose of designated trees or stumps according to Subsections 203.05 and 203.07.

Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS

Add the following to Subsection 203.07 Disposing of Material:

Dispose of unsuitable and excess material according to the specified method(s) as follows:

(a) Windrowing Construction Slash. Place construction slash outside the roadway in neat, compacted windrows approximately parallel to and along the toe line of embankment slopes. Do not permit the top of the windrows to extend above subgrade. Use construction equipment to matt down all material in a windrow to form a compact and uniform pile. Construct breaks of at least 15 feet at least every 200 feet in a windrow. Do not place windrows against trees.

(b) Scattering. Scatter construction slash in designated areas without damaging trees. Limb all logs.

Place logs and stumps away from trees, positioned so they will not roll, and are not on top of one another. Limb and scatter other construction slash to reduce slash concentrations. When scattering for erosion control, place construction slash as flat as practicable on the completed slope.

(c) Chipping. Use an approved chipping machine to chip slash longer than 3 feet. Deposit chips on embankment slopes or outside the roadway to a loose depth less than 6 inches. Minor amounts of chips or ground woody material may be permitted within the roadway if they are thoroughly mixed with soil and do not form a layer.

(d) Debris Mat. Use tree limbs, tops, cull logs, split stumps, wood chunks, and other debris to form a mat upon which construction equipment is operated. Place stumps upside down and blend stumps into the mat.

(e) Decking. Remove brush from designated log deck areas. Limb and top logs.

Logs not meeting the Utilization Standards described in Subsection 201.04(c) shall be cut to lengths less than 8 feet and decked in designated log deck location.

Merchantable timber not associated with an existing timber sale shall be cut to length meeting the Utilization Standards described in Subsection 201.04(c).

Deck logs so that logs are piled parallel to one another; can be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Keep logs in log decks free of brush and soil.

(f) Removal to designated locations. Remove construction slash to designated locations.

(g) Piling. Pile construction slash in designated areas. Place and construct piles so that if the piles are burned, the burning will not damage remaining trees. Keep piles free of dirt from stumps.

Section 204. – EXCAVATION AND EMBANKMENT

Delete Subsection 204.06 Roadway Excavation and replace with the following:

204.06 Roadway Excavation. Excavate as follows:

(a) Rock cuts. Verify the top portion of the rock cuts during pioneer access or initial excavation.

Construct the final soil cut before starting drilling for rock blasting or other rock excavation methods unless approved. Blast rock according to Forest Service Supplemental Specification Section 205 if approved by the CO. Excavate rock cuts to 6 inches below subgrade within the roadbed limits.

Backfill to subgrade with select borrow. Compact the material according to Subsection 204.11.

(b) Earth cuts. Scarify earth cuts to 6 inches below subgrade within the roadbed limits. Compact the scarified material according to Subsection 204.11.

(c) Drainage Feature. Drainage feature includes construction of all ditches, minor channel changes, drainage dips, catch basins, surface water deflectors, and other minor drainage structures. Compact the material according to Subsection 204.11. Excavate on a uniform grade between control points.

Remove snow or ice in advance of the work and deposit beyond the roadway limits in a manner to prevent resource damage.

Conserve 6-inch minus material from the roadway excavation to use for finishing the roadbed. Dispose of unsuitable or excess excavation material according to Subsection 204.14. Replace shortage of suitable material caused by premature disposal of roadway excavation.

At the end of each day’s operations, shape to drain and compact the work area to a uniform cross-section.

Delete and replace the first paragraph in Subsection 204.11 Compaction with the following:

When determining the quantity of material retained on a No. 4 sieve for compaction, use AASHTO T27.

Compact each lift of material to a firm and stable condition and until there is no visible evidence of further consolidation or deflection. Compact using one of the following as specified:

Add the following to Subsection 204.11 Compaction:

(d) Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate roller compaction equipment over the full width of each layer until there is no visible evidence of further consolidation or, if when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes. Use compression-type rollers at speeds less than 6 feet per second and vibratory rollers at speeds less than 3 feet per second. Ensure rollers meet the following requirements:

(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than 250 pounds per inch of width of the compression roll or rolls.

(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum dynamic force of 30,000 pounds impact per vibration, specifically designed to compact the material on which it is used.

(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 80 psi.

(4) Sheepsfoot, tamping, or grid rollers capable of exerting a force of 250 pounds per inch of width of roller drum

(e) Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer until there is no visible evidence of further consolidation. Make at least three complete passes.

(f). Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer.

(g) Adjust the moisture content of the material to a moisture content suitable for compaction.

Compact the complete surface with a bucket of an excavator larger than 39,000 pounds Gross Vehicle Weight using a minimum of three blows. Overlap compaction by ½ width of bucket.

(h) Adjust the moisture content of the material to a moisture content suitable for compaction.

Compact using an approved mechanical tamper for a minimum of three complete passes.

When compacting with rollers or hauling and spreading equipment is not practical, use approved mechanical tampers for a minimum of three complete passes.

Replace the first paragraph of Subsection 204.13 replace with the following.

204.13 Sloping, Shaping, and Finishing. Complete slopes, ditches, culverts, riprap, and other underground minor structures before placing aggregate courses. Slope, shape, and finish to the designated tolerance class as defined in Table 204-2 as follows:

Add the following table to Section 204.

Table 204-2

Construction Tolerances

Dimension Tolerance Class

A B C D E F

Roadbed width (ft) +0.5 +1.5 +2.0 +2.0 <FILL IN> <FILL IN>

Subgrade elevation1 (ft) +-0.1 +-1.0 +-3.0 +-5.0 <FILL IN> <FILL IN>

Horizontal alignment (ft) +-0.2 +-1.5 +-5.0 +-10.0 <FILL IN> <FILL IN>

Vertical alignment (%) +-1 +-1 +-2 +-2 <FILL IN> <FILL IN>

Slopes, excavation and embankment (%)

+-3 +-3 +-3 +-3 <FILL IN> <FILL IN>

1 Subgrade elevation tolerance applies to the cut or fill shown in the staking information unless otherwise agreed to.

Delete 204.16(a)(1)(a) Measurement, Roadway Excavation and replace with the following:

(a) Roadway prism excavation;

Add the following to Subsection 204.16(g) Measurement:

(g) Drainage features. Measurement includes all excavation, embankment, shaping, and grading necessary for a completed drainage feature.

Section 209. – STRUCTURE EXCAVATION AND BACKFILL Fairy Lake Phase Two 1/30/2026

Add the following to subsection 209.08.

For pipe culverts less than 96 inches in diameter. Unless otherwise shown on the plans provide material for bedding consisting of selected 3 inch minus mineral soil that is readily compactible and free of frozen lumps, chunks of highly plastic clay (with a PI greater than 10), or other objectionable material. Bed the pipe according to subsection 209.08(b).

Material for bedding shall be evaluated according to Subsection 106.02.

Add the following to subsection 209.09(b).

Pipe culverts less than 96 inches in diameter. Unless otherwise shown on the plans provide material for backfill consisting of selected 3 inch minus mineral soil that is readily compactible and free of frozen lumps, chunks of highly plastic clay (with a PI greater than 10), or other objectionable material. Backfill according to subsection 209.09(b)(1). Material for backfill shall be evaluated according to Subsection 106.02.

Add the following to Subsection 209.09(a) Backfill, General:

Backfill without damaging or displacing the culvert or structural plate structure. Replace any pipe that is distorted by more than 5 percent of nominal dimensions, or that is ruptured or broken.

Do not place or backfill pipe that meets any of the following conditions until the excavation and foundation have been approved by the CO:

• Installation in a protected stream course.

• Round pipe with a diameter of 48 inches or greater.

• Pipe arches with a span of 50 inches or greater.

• Any box culvert or structure other than pipe culverts.

Delete and replace Subsection 209.10 Compacting with the following):

For culverts less than 96” equivalent diameter: Compact per Subsection 204.11.

For culverts greater than 96” equivalent diameter:

Determine optimum moisture content and maximum dry density according to AASHTO T 99, Method C. Adjust the moisture content of the backfill to a moisture content suitable for compaction. Compact material placed in each lift to at least 95 percent of the maximum density. Determine the in-place density and moisture content according to AASHTO T 310 or other approved test procedures. Do not apply density requirements as measured by AASHTO T 310 to material that cannot be tested or compacted to maximum values determined by AASHTO T 99. For this material, fill the voids around the rocky material in each lift with structural backfill or foundation fill as appropriate. Compact each lift until there is no visible evidence of further consolidation.

Section 301. - UNTREATED AGGREGATE COURSES

Description

301.01 This work consists of constructing aggregate courses on a prepared surface.Material

301.02 Conform to the following Subsections:Subbase, base, and surface course aggregate 703.05

Water for construction 725.01(c) Screened aggregate 703.05(d)

Construction Requirements

301.03 General. Prepare the surface according to Section 204 or 303 as applicable.

Written approval of the roadbed is required before placing aggregate.

For pit run material, furnish material smaller than the maximum size identified in the plans, no gradation will be required otherwise. After processing on the road, remove all oversize material from the road and dispose as directed by the CO.

Provide additives or binder, if required, at the proportions specified.

Develop and use Government furnished sources according to Section 105.

If the aggregate is produced and stockpiled before placement, handle and stockpile according to Section 314.

After a representative quantity of aggregate is produced, submit target values within the required gradation range along with a representative 300-pound sample at least 14 days before incorporating the aggregate into the work.

301.04 Mixing and Spreading. Obtain moisture content in accordance with the compaction method specified. If moisture content is not specified by the compaction method adjust the moisture content to a level suitable for compaction. Mix the aggregate and adjust the moisture content to obtain a uniform mixture. Spread and shape the mixture on the prepared surface in a uniform layer.

Do not place the mixture in a layer exceeding 6 inches (150 millimeters) in compacted thickness. When more than one layer is necessary, compact each layer according to Subsection 301.05 before placing the next layer. Route hauling equipment uniformly over the full width of the surface to minimize rutting or uneven compaction.

301.05 Compacting. Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Along curbs, headers, walls, and all places not accessible to the roller, compact the material with approved tampers or compactors.

Compact the aggregate using one of the following methods as specified:

(a) Compaction A. Operating spreading and hauling equipment over the full width of the travelway.

(b) Compaction B. Operate rollers and compact as specified in Subsection 204.11(a)(4)(a).

(c) Compaction C. Moisten or dry the aggregate to a uniform moisture content between 5 and 7 percent based on total dry weight of the mixture. Operate rollers and compact as specified in Subsection 204.11(a)(4)(a).

(d) Compaction D. Compact to a density of at least 95.0 percent of the maximum density, as determined by AASHTO T 99, method C or D.

(e) Compaction E. Compact to a density of at least 95.0 percent of the maximum density, as determined by AASHTO T 180, method C or D.

For all compaction methods, blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface. When a density requirement is specified, determine the in place density and moisture content according to AASHTO T 310 or other approved test procedures.

301.06 Surface Tolerance. Remove irregularities and shape to a uniform surface. Ensure that the thickness and width of the compacted aggregate conform to the dimensions SHOWN ON THE DRAWINGS, and that measurements on the compacted aggregate meet the following criteria:

(a) The maximum variation from the specified thickness is 1 inch.

(b) The compacted thickness is not consistently above or below the specified thickness, and the average thickness of measurements for any one mile of road segment is within ± ¼ inch of the specified thickness.

301.07 Maintenance. Maintain the aggregate course to the correct line, grade, and cross-section by blading, watering, rolling, or combination thereof until placement of the next course. Correct defects according to Subsection 301.06.

301.08 Acceptance. See Table 301-1 for sampling, testing, and acceptance requirements. Screened aggregate will be evaluated Under 106.02 Aggregate gradation and surface course plasticity index will be evaluated under Subsection 106.05. Other aggregate quality properties will be evaluated under Subsections 106.02 and 106.04.

(a) Aggregate gradation. The upper and lower specification limits are equal to the calculated mean of all test results plus or minus the allowable deviations shown in Tables 703-1 and 703-2, except as follows:

(1) If the calculated mean value for a tested sieve exceeds the maximum gradation range value shown in Table 703-1, then the upper specification is equal to the maximum gradation value in Table 703-1 plus or minus the allowable deviation in Table 703-2.

(2) If the calculated mean value for a tested sieve is less than the minimum gradation range value shown in Table 703-1, then the lower specification is equal to the minimum gradation value in Table 703-1 plus or minus the allowable deviation in Table 703-2.

(b) Plasticity index. The upper and lower specification limits for surface courses are shown in Subsection 703.05(c)(3).

Construction of untreated aggregate courses will be evaluated under Subsections 106.02 and 106.04.

Measurement

301.09 Measure the Section 301 pay items listed in the bid schedule according to Subsection 109.02 and the following as applicable:

When measuring aggregate by the cubic yard, measure in place.

When measuring aggregate by the square yard, measure the length horizontally along the centerline of the roadway. Measure the width horizontally to include the top of aggregate width, including designed widenings.

Payment

301.10 The accepted quantities will be paid at the contract price per unit of measurement adjusted according to Subsection 106.05 for the Section 301 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

Table 301-1 Sampling, Testing, and Acceptance Requirements

Material or Product

(Subsection)

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time Remarks

Source

Aggregate quality

(703.05(a), (b), & (c))

Measured & tested for conformance (106.04 &

105)

LA abrasion (coarse) − AASHTO

T 96

1 per type & source of material

Source of material Yes

Before using in work

Not required if using

Government -furnished sources Soundness using sodium sulfate (coarse & fine)

− AASHTO

T 104 " " " " "

Fractured faces − AASHTO

T 335 " " " " "

Liquid limit −

AASHTO

R58 & T 89, Method A

Surface course aggregate

(703.05(c))

Measured & tested for conformance (106.04 &

105)

Plasticity index −

AASHTO

R 58, T 89, & T 90

1 per type & source of material

Crusher belt or after processing

Yes Before using in work

Not required if using

Government -furnished sources

Table 301-1 (continued)

Material or Product

(Subsection)

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time Remarks

Source (continued)

Subbase, base, or surface course aggregate

(703.05(b) & (c))

Process control

(153.03)

Gradation − AASHTO T 11 & T 27

2 per day per stockpile minimum

Crusher belt No 24 hours

Not required if using a pre-crushed commercial source

Fractured faces − AASHTO T 335 " " " " "

Surface course aggregate

(703.05(c)) " Plasticity index −

AASHTO

R 58, T 89, & T 90

2 per day per stockpile minimum

Crusher belt or after processing No 24 hours

Not required if using a pre-crushed commercial source Production

Subbase course

Grading A & B

Statistical (106.05)

Gradation

AASHTO

T 27 & T 11

1 per 1000 tons

From windrow or roadbed after processing

Yes 24 hours −

No. 4 II No. 200 II Other specified sieves

II

Material or Product

(Subsection)

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time Remarks

Production (continued)

Base course Grading C, D, & E

Statistical (106.05)

Gradation

AASHTO

T 27 & T 11

1 per 1000 tons

From windrow or roadbed after processing

Yes 24 hours −

⅜ in II No. 4 II

No. 200 II Other specified sieves II

Subbase & base course Grading A, B, C, D, & E

Measured & tested for conformance (106.04)

Liquid limit −

AASHTO

R 58 & T 89, Method A

1 per 1000 tons

From windrow or roadbed after processing

Yes 4 hours −

Moisture-density

(maximum density)

AASHTO

T 180, Method D(1)

1 per type & source of material

Stockpile or production output

Density −

AASHTO

T 310 or other approved procedures

1 per 500 tons

In-place after compaction No End of shift −

Moisture content

(in-place)

Material or Product

(Subsection)

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time Remarks

Production (continued)

Surface course aggregate

Statistical (106.05)

Gradation

AASHTO

T 27 & T 11

1 per 1000 tons

From windrow or roadbed after processing

Yes 24 hours −

No. 4 II No. 40 II

No. 200 II Other specified sieves II

Plasticity index II

AASHTO

R 58, T 89, & T 90

Measured & tested for conformance (106.04)

Moisture-density

(maximum density)

AASHTO

T 180, Method D(1)

1 per type & source of material

Stockpile or production output Yes " −

Density −

AASHTO

T 310 or other approved procedures

1 per 500 tons

In-place after compaction No End of shift −

Moisture content

(in-place)

Fractured faces − AASHTO

T 335 1 per

1000 tons

From windrow on roadbed after processing

Yes 4 hours −

Material or Product

(Subsection)

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time Remarks

Finished Product

Subbase, base, & surface course

Measured & tested for conformance (106.04)

Surface tolerance & grade

− Subsection

301.06 As directed Surface of

final course No

Before placement of next lift or as requested

(1) At least 5 points per proctor.

Section 302. - CRUSHED AGGREGATE

Add the following to Subsection 302.02 Material:

Soil 704

Add the following to Subsection 302.04 Mixing and Spreading:

Written approval of the surface is required before placing aggregate.

Add the following to Subsection 302.04(a) Mixing and Spreading, Roadway Aggregate:

For pit run material, furnish material smaller than the maximum size identified in the plans, no gradation will be required otherwise. After processing on the road, remove all oversize material from the road and dispose as directed by the CO.

Delete and replace 302.05(a)(1) Compacting and Finishing Crushed Aggregate, Roadway aggregate, Method 1 with the following:

(1) Method 1. Compact each lift according to Subsection 204.11.

Section 303. – ROAD RECONDITIONING

Replace subsection 303.06 with the following.

303.06 Roadbed Reconditioning. Remove organic, deleterious, and material larger than 6 inches brought to the surface during reconditioning. Scarify potholes, ruts, and areas shown in the plans to a 6-inch depth or the bottom of the pothole, whichever is less. Dispose of waste at designated sites or according to Subsection 204.14. Repair soft and unstable areas according to Subsection 204.07. Remove irregularities and shape to a uniform surface. Perform the work, including mixing or spreading, when the moisture content is suitable for the specified compaction method. Compact the surface according to Subsection 204.11. Shape the surface according to 204.13(c).

Replace subsection 303.07 with the following.

303.07 Aggregate Surface Reconditioning. Repair soft and unstable areas to the full aggregate surface depth and according to Subsection 204.07. Scarify potholes, ruts, and areas shown in the plans to a 6-inch depth or the bottom of the pothole, whichever is less. Remove irregularities and shape to a uniform surface. Perform the work, including mixing or spreading, when the moisture content is suitable for the specified compaction method. Compact the surface according to Subsection 204.11. Shape the surface according to 204.13(c).

Section 642. – Concrete Septic Holding Tank

642.01 Work under this section includes providing, transporting, and installation of a minimum

1,000-gallon precast concrete sewage holding tank with appurtenances at the Campground Host Site. The work also includes furnishing and installing a gravity sewer line to connect RV sewer connection to the holding tank.

Submittals

642.02 It shall be the Contractor's responsibility to submit all items with such promptness as to cause no delay in the work. Approval must be obtained before starting work which involves the item. The Contractor shall allow 5 business days for processing of submittals by the Government.

Manufacturer's Literature: Submit to the CO for approval on the items required herein.

Literature shall be marked or otherwise designated to indicate the exact model, size, etc., the Contractor proposes to use. Information shall be adequate to determine compliance with the specifications without additional research by the CO. One copy of approved submittals will be returned to the Contractor.

Submit a shop drawing of the precast concrete holding tank to the CO for approval prior to fabrication of the tank. Shop drawing shall show all dimensions, reinforcement, and construction joints.

Submit a concrete materials mix design for 3,500 psi concrete based on one cubic yard, including the weights of cement, water, and each aggregate size in the saturated surface-dry condition.

Sealants: Submit manufacturer's product literature on all sealants used in tank construction.

Sewer line shall be schedule 40 pvc.

Submit manufacturer's product literature for the following items:

Manhole Frame and Cover.

Locking Well Cap.

Materials

642.03 Precast Concrete Sewage Holding Tank

a) Manufacturer: Tank shall be manufactured by a PCI or NPCA certified plant regularly engaged in the business of precast concrete tanks. A commercially available tank will be acceptable. Provide submittal for approval. ABS liners are not allowed.

b) Concrete Strength: Minimum 28-day compressive strength of 3,500 psi.

c) The tank shall be delivered to the site as a single unit. The tank shall be manufactured as a one-piece unit. Construction joints at the factory are allowed to meet one of the following requirements:

d) Tank sealing: The entire interior of the holding tank shall be sealed at the factory with a minimum of two (2) coats of a two-part, polymer modified, cement-based system for waterproofing concrete. Surface preparation and the use of a bonding agent shall be as recommended by the manufacturer. Tamms HEY’DI K-11 waterproofing system with HEY’DI SB bonding agent or approved equal.

e) Tank Dimensions: The tank shall be sized to be minimum of 1,000-gallon capacity.

f) Reinforcement: Tank walls shall be reinforced with No. 4 vertical rebar on 12-inch centers, and No. 3 horizontal rebar on 12-inch centers. Tank top and floor shall be reinforced with No. 4 rebar on 6-inch centers across the width and No. 3 rebar on 6-inch centers along the length or as approved by the CO.

g) Cast 4-inch diameter PVC pipe fitting with rubber gasket at one end of tank. Invert shall be approximately 8 inches below bottom surface of tank top for connection RV sewer line.

h) Include 20-inch diameter manhole opening in top of tank, centered over inlet.

642.04 Manhole Grade Rings. Provide sufficient quantity of 24-inch inside diameter concrete grade rings as required to construct a manhole at the tank access hole. The intent is to set the tank so the manhole riser will be approximately 12 inches deep. However, the

Contractor shall have on hand extra grade rings to construct a manhole up to 24 inches deep if required by field conditions.

642.05 Manhole Frame and Cover. Provide cast iron manhole frame and cover, Inland Foundry No. 770 or approved equal.

642.06 Gravity Sewer Pipe and Fittings. Polyvinyl Chloride (PVC) Pipe and Fittings: Schedule 40, DWV, solvent cemented joints, meeting latest version ASTM D 2665, 4-inch diameter.

642.07 Solvent Cement and Primer.

a) Primer for use solvent cement joints of PVC plastic pipe and fittings, pigmented, meeting latest version of ASTM F 656.

b) Solvent cement for PVC plastic pipe and fittings, meeting latest version of ASTM D 2564.

642.08 Bedding Material. One-inch minus crushed aggregate.

642.09 Locking Sewer Cap. Heavy duty Nylon construction with high impact heat resistant, UV protected with chemical resistant properties. Cap is completely inert, and has a square UV Protective Gasket. Tamperproof cap and is watertight. Grip ‘N Lock, fits a 4 inch SCcH 40 PVC, by Enviro Design Products, (352)–465-6048, http://www.envirodesignproducts.com/ or approved equal.

Construction Requirements

642.10 Excavation.

Tank location shall be as staked in the field by the CO. Set top of tank 12 inches below the surrounding existing ground surface unless directed otherwise by the CO.

Excavation shall be unclassified.

Excavate to a depth of 6 inches below the bottom of the tank.

If water is encountered during the excavation, the water shall be removed and disposed of without damage to the surrounding area. The excavation shall be free of standing water prior to placement of bedding material.

642.11 Bedding. Compact the bottom of the excavation with a minimum of 3 passes with a whacker-type mechanical compactor or equivalent approved by the CO. Place a 6 inch lift of bedding material in the bottom of the excavation. Compact with a minimum of 2 passes with a whacker-type mechanical compactor. Prepare smooth and level surface to receive holding tank.

http://www.envirodesignproducts.com/

642.12 Tank Installation

Inspect excavation and bedding prior to placing holding tank. Complete minor hand work as required for level bedding surface.

Place holding tank in excavation by methods and with equipment suitable for the job.

Verify tank is level within 1/2 inch between all corners.

642.13 Water tightness Test

The Contractor shall perform a water tightness test on the tank.

All equipment and water required for testing shall be provided by the Contractor.

Factory Test: A tank water tightness test shall be performed at the manufacturing facility prior to shipment. The test shall be performed in the presence of the CO. Notify the CO 3 business days in advance of the test date.

Fill the tank completely with water and let stand for one hour. Check for leaks. Repair all leaks by methods approved by the CO. Re-test tank until no leaks are detected.

Field Test: A water tightness test shall be performed in the field after the tank has been set in the excavation, but prior to backfilling. Complete the test in accordance with A above.

After successful completion of the field water tightness test, all water shall be pumped from the tank by the Contractor. Water may be disposed of on site by methods that will not result in erosion or other damage to the site.

Water Source and Tanker Truck: The Contractor may draw water from live streams in the campground for the tank water tightness test. It shall be the Contractor's responsibility to provide pumps, tanker truck, or containers, as needed, to haul water for the field water tightness test.

642.14 Backfilling

Verify that tank is level and complete the field water tightness test, in accordance with Section 3.4, prior to backfilling.

Backfill tank with suitable excavated material. Rocks larger than 4-inches in diameter shall not be placed in the upper 6 inches of fill or within 6 inches of the outside of the tank.

Backfill shall be hand or mechanically tamped in 6-inch lifts to a density of 90 percent ASTM D-698 or AASHTO T-99. No heavy equipment shall be allowed on the tank or within 4 feet of the tank during backfilling operations.

Complete finish grading to provide a smooth transition with surrounding undisturbed material.

Excess or unsuitable excavated material shall be disposed of on-site at a location designated by the CO.

642.15 Manhole

Place sufficient concrete grade rings over tank access hole as required to set manhole cover approximately 1 inch above the existing ground surface.

Set grade rings and manhole frame in a bed of Rub'r-Nek, manufactured by K.T. Snyder Co., or approved equal.

Apply sufficient Rub'r-Nek to ensure a watertight manhole installation.

642.16 Gravity Sewer Pipe and Fittings

Install 4-inch Schedule 40 PVC gravity sewer line from the tank inlet to the host site service connection as shown on the drawings.

Complete all horizontal 90 degree bends with (2) 45 degree fittings.

Install sewer piping at minimum slope of 1/4 inch per foot unless otherwise approved by the CO. Bed pipe with 6 inches of bedding material around all sides of pipe. Balance of backfill shall be 2-inch minus excavated material.

Bedding and backfill shall be hand-tamped except material under the host site sewer connection and down to the sewer main shall be placed in 8 inch loose lifts and compacted with a minimum of 2 passes with a whacker-type mechanical compactor or equivalent approved by the CO. Compact backfill on either side of concrete pad a minimum distance equal to the overall depth of the trench.

Complete finish grading to provide a smooth transition with surrounding undisturbed material.

Upper Termination: At upper end of sewer line, install (2) 45 degree fittings, and extend sewer pipe 6 inches above the existing ground surface.

Install approximately 30 inch by 30 inch by 10 inch thick concrete pad around sewer line where it leaves the ground. Slope top of pad and extend 4-inch PVC pipe approximately one inch above the top of slab as shown on the drawings.

Install 4-inch rubber cap at upper termination.

Acceptance

642.17 Material, construction and erection of precast concrete vault toilets and vaults for will be evaluated under Subsections 106.02 and 106.04.

642.18 The accepted quantities will be paid at the contract price per unit of measurement for the

Section 642 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

Payment will be made under this Item for all required work and materials to install the concrete holding tank, manhole frame and cover, bedding material, 4-inch gravity sewer line, and host site sewer connection, complete.

643. – Precast Concrete Vault Toilet

643.01 Work specified under this section consists of furnishing and installing precast concrete vault toilets. This work also includes clearing and grubbing, excavation, backfill, finish grading, and constructing accessible trails/pathways/concrete parking areas.

Material

643.02 The supplier shall be Missoula Concrete Construction, CXT Precast Concrete Products, or approved equal toilets from an approved equal PCI Certified Plant. Toilets manufactured by Missoula Concrete shall be Aspen style. Toilets manufactured by CXT shall be Gunnison style.Toilets shall match orientation, layout, and style refred to in the plans. Vent shall be in the door. Colors shall be verified by the CO. prior to ordering. Vaults shall not have ABS liner but shall be sprayed in liner. Toilet manufacturers shall have current PCI certification in order to be qualified as equal.

Bedding material to be sand or 1/2” minus crushed or screened gravel or as recommended by manufacturer.

Sealant between vault and toilet floor to be as recommended by manufacturer.

Crushed aggregate shall be 3/4” minus crushed aggregate that is well graded and shall compact to the approval of the C.O.R. Other aggregate size to be approved by C.O.R. prior to construction.

Construction Requirements

643.03 Precast concrete vault toilets shall be installed according to manufacturer’s instructions.

Toilets that are to be moved shall be removed and reset without damaging the toilet. Any damage to the toilet that occurrs shall be the contractor’s responsibility to fix according to the manufacturer’s instructions and approval or shall be replaced.

643.04 Toilet location(s) and orientation(s) will be staked in the field by the COR. Plans are for approximate location only.

643.05 Clearing of any brush or trees may be required to place toilets and to allow safe operation of the crane. Complete grubbing in accordance with Section 201.

643.06 Comply with applicable OSHA standards for excavation.

Excavate for the installation of the toilet vault to a depth that will allow the structure site to be free-draining after installation is completed. Allow for a 2-inch leveling course beneath the toilet vault. Stockpile topsoil in separate pile at sites where topsoil is present.

Excavate a hole sufficient enough to place the toilet to meet finished floor requirements as staked, and as recommended by manufacturer.

Finish floor elevation shall be 4 to 6 inches above natural grade measured at the front

(entrance) of the exterior slab unless otherwise shown on the plans, staked in the field, or approved by the COR. Installation shall provide drainage away from the toilet for a minimum of 5 feet. The Government may specify a finish floor elevation for buildings at some sites. Contractor shall install buildings at these sites with the floor elevation within plus or minus 0.05 feet of the specified floor elevation. Finish floor elevation shall be set so it is accessible, less than a 5% grade to enter toilet.

No excavation shall be left open more than seven days unless otherwise approved by the

COR.

All excavations left open overnight shall be enclosed with plastic orange mesh fencing secured to steel posts, and approved by the COR.

643.07 Compact the bottom of the vault excavation with a minimum of three passes with a whacker-type mechanical compactor or equivalent approved by the COR.

Install a 2-inch thick lift of crushed gravel material at bottom of vault excavation for leveling course. Compact leveling course with mechanical compactor as approved by COR. Grade leveling course so there will be no high spots in the middle of vault bottom.

Compact with second pass of mechanical compactor.

Set vault in place with suitable equipment. Verify vault is level within 1/4 inch between corners. Backfill around structure. Use excavated material for backfill except that rocks larger than six inches in maximum dimension shall not be placed within six inches of exterior of vault walls.

Adjacent to building entry, backfill material shall be placed in eight-inch loose lifts and mechanically compacted as approved by COR.

643.08 Place excess excavated material around structure. Finish grade shall be 6 inches above native ground. Slope material away from structure for drainage. Provide smooth transition with surrounding undisturbed material. Maximum slope away from structure shall be 5%.

Place 3/4” minus crushed aggregate to within ½” of top of concrete slab. Aggregate shall encircle toilet and shall be a minimum of 5’ wide and 6” compacted depth. Compact aggregate with mechanical compactor as approved by COR.

Construct 5’ accessible path with a 6” compacted depth of 3/4” minus crushed aggregate as…