AG87BJS150022FSSS.pdf

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DAKOTA PRAIRIE GRASSLANDS - Jorgen's Hollow Campground - Phase 2
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AG-87BJ-S-15-0022
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Forest Service Supplemental Specifications

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SPECIAL PROJECT SPECIFICATION

Section 101 – Terms, Format and Definitions

101.03 Abbreviations

Available Avail Coating Coat Construction Const

Contracting Officer Representative COR Government Gov’t.

Includes Culvert Excavation Incl Culv Exc Individual Removal of Trees Ind Removal/Trees Large Lg Left Lt Logs Log Medium Med Millimeter Mil One Thousand Gallons Mile M.Gals.MI. or MGM Options Opt Placement Method P.M.

Right Rt Slash Treatment S.T.

Small Sm Steel Stl Structure Str Timber Tbr Treatment Treat

Typical Typ

03 SPS 101 - 1 DPG (3/05)

Section 101 – Terms, Format, and Definitions

101.04 Definitions

Add the following:

”Noxious Weeds or Weeds. Any exotic plant species established or that may be introduced in the State which may render land unfit for agriculture, forestry, livestock, wildlife or other beneficial uses and which is designated by the State’s Department of Agriculture, or by the County’s weed management district, or by other appropriate agencies having jurisdiction.

Weed Management District. A weed management district is any area of land identified for the purpose of weed management or control. Such an identified land area may be, but is not limited to one of the following: a project or job site, a County, two or more Counties or a National Grassland.”

Section 102 – Bid, Award and Execution of Contract

Delete entire section

Section 103 – Scope of Work

Delete Subections 103.02 – 103.05

Section 104 – Control of Work

Delete Subsections 104.03 and 104.04

03 SPS 101, 102, 103, 104 - 2 DPG (3/05)

Section 106 – Acceptance of Work

106.05 Statistical Evaluation of Work and Determination of Pay Factor (Value of Work)

Delete this subsection

106.07 Partial and Final Acceptance

Delete this subsection

Section 107 – Legal Relations and Responsibility to the Public

107.04 Railroad Protection

Delete this subsection

107.05 Responsibility for Damage Claims

Section 108 – Prosecution and Progress

Delete entire section

03 SPS 106, 107, 108 -1 DPG (3/05)

Section 109 - Measurement and Payment

109.02 Measurement Terms and Definitions

Under “(b) Cubic yard”

(1) Cubic Yard in place, “ add the following:

”(d) Aggregate Base or Surfacing, Compacted in Place. The measurement computed using measurements of material in the compacted state on the project.

109.06 Pricing of Adjustments

Delete this subsection

109.07 Eliminated Work

109.08 Progress Payments

109.09 Final Payment

03 SPS 109 – 1 DPG (3/05)

Section 153 – Contractor Quality Control & Quantity Measurement

CONSTRUCTION

153.02 Contractor Quality Under “ Contractor Quality Control Plan”, add the following:

Control Plan

(3) Production Phase

(d) Random sampling and/or measurement plan prepared in accordance with requirements in Table 153.”

A log of all samples that are taken by the Contractor shall be maintained for the duration of the contract, and provided to the Contracting Officers Representative (COR) upon request.

TABLE 153

SAMPLING, TESTING AND MEASUREMENT REQUIREMENTS

Key to symbols used in table:

CT: Sampling and testing by contractor’s personnel identified by name on the approved contractor’s Q/C plan. Interim approval of personnel submitted will be based on specified training or experience requirements.

Final approvalwill be based on observation of work performance on the project.

FS: Sampling, testing, measuring and/or data furnished by the Forest Service.

Note: The minimum frequency shown in this table is for contractor Quality Control sampling and testing. The contractor can run additional samples over the minimum number specified in the table. These additional samples can be taken in any manner, at any time desired by the contractor. Quality assurance sampling and testing by the Forest Service may be done at any time or location.

SUBSECTION REFERENCE

REQ’D SAMPLING, TESTING RESPONSIBILITY FOR MINIMUM FREQUENCY

AND MEASUREMENTS SAMPLING/TESTING

204.17 Construction Tolerances

Measurement of Construction Tolerances CT/CT For Trailhead Width and Grade 3 random samples

03 SPS 153-1 DPG (6/15)

Section 204 - Excavation and Embankment

204.10 Embankment Construction.

(a) General.

Delete the third paragraph and add the following:

Compact embankment layers for the trailhead with hauling equipment as construction progresses by Compaction Method D.

204.11 Compaction.

Delete the first paragraph and replace it with the following:

For compaction method D, no sieve test is required.

Add the following compaction method:

(D) Layer Placement Method - (Hauling and Spreading Equipment). Place material by end dumping to the minimum depth needed for operation of spreading equipment. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer. Construct a solid embankment with adequate compaction by working smaller rock and fines in with the larger rocks to fill the voids and by operating hauling and spreading equipment uniformly over the full width of each layer as the embankment is constructed.

204.13 Sloping, Shaping, and Finishing.

(a) Sloping.

Slope rounding is not required on construction tolerance class E roads.

03 SPS 204-1 DPG (6/15)

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. For the trailhead, remove all rock larger than six (6) inches from the top six (6) inches of the subgrade. Finish the trailhead to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the trailhead and replace it with suitable material. Ensure that the subgrade for the trailhead is visibly moist during shaping and dressing.

Bring low sections, holes, cracks, or depressions to grade with suitable material. Maintain proper ditch drainage.

204.14 Disposal of Unsuitable or Excess Material.

Delete the text of the first paragraph:

Table 204-1 Sampling and Testing Requirements.

Add the following note to the table:

(2) Using compaction Method (D), AASHTO M 145, T 99, T 180, and T 310 are not required for earth embankment test methods.

03 SPS 204-2 DPG (6/15)

To mitigate the anticipated impacts of spreading noxious weed species, the following precautions will be used:

All equipment and vehicles to be used at the job site shall be steam cleaned and free of noxious weeds and their seeds prior to entrance onto the project site. The restriction shall include equipment and vehicles intended for off-road as well as on-road use, whether they are owned, leased, or borrowed by the contractor or any subcontractor.

Cleaning shall consist of the removal of all dirt, grease, debris, and materials that may harbor noxious weeds and their seeds. Cleaning shall occur off the National Grasslands.

Equipment, materials, and vehicles shall be visually inspected by the Contracting Officers Representative (COR), or other designated Forest Service official, and certified in writing by the contractor to be reasonably clean and weed free. Inspections will take place at a location agreed to by the Contracting Officers Representative (COR) and Contractor in advance of delivery to the job site. Equipment and vehicles shall proceed directly to the job site following the inspection. Materials, including delivery vehicles, delivered to the project site will also be inspected prior to entering the area.

The contractor shall protect all existing vegetation from the introduction of noxious weeds (1) at or near the work site and (2) on adjacent property. The contractor shall treat any introduced weeds resulting from failure to exercise reasonable care in performing the work. If the contractor fails or refuses to treat such weeds, the Contracting Officer may have the necessary work performed and charge the cost to the contractor.

Certification of each piece of equipment or vehicle shall remain valid for the duration of the project as long as the identified subjects remain solely on the project. Equipment that leaves the job site shall be recertified before being allowed to return. Individual workers’ vehicles shall be parked at a staging area that will be designated by the Contracting Officers Representative (COR).

301 - Untreated Aggregate Courses

301 Title Change

Change the title to: Section 301 - Aggregate Courses

301.01 Description

The quantity listed in the Schedule of Items is for surfacing at the depth and width compacted in place. The contractor shall furnish enough material to overcome the compaction factor to achieve the required thickness and width. The contractor shall spread and compact the material in accordance to the plans, drawings and specifications. Prior to any placing of aggregate surfacing on any section the subgrade shall be inspected and approved by the Engineer. The subgrade inspection shall include the approaches and trailhead. Pay Item 301 shall be for this work in its entirety and no separate measurement shall be made.

301.02 Material – Aggregate shall meet the following Specifications

Specification Requirements for Modified Class 5 Aggregate

Sieve Size Aggregate Percent Passing Mod. Class 5_

1” 100% 3/4” 90-100% No.4 35-70% No.30 16-40% No.200 10-17% Shale 12% Max L.A Abrasion 50% Plasticity Index - Fractured Faces 10%

301.03 General

Request written approval by the Contracting Officers Representative (COR) of the subgrade a minimum of forty-eight (48) hours before the placing of aggregate.

SPS 301-1 DPG (6/15)

301.04 Mixing and Spreading

Delete the first sentence of the first paragraph and add the following:

Spread the aggregate in a uniform layer, with no segregation of size, and to a loose depth that will provide the required compacted thickness. Route and distribute hauling and leveling equipment over the width and length of each layer.

301.05 Compacting

Compact the aggregate with the following method specified:

Compaction A: Operate spreading and hauling equipment over full width of the subgrade.

For the compaction method, blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface.

301.06 Surface Tolerance

Delete the first paragraph and add the following:

Thickness and Width requirements:

The compacted thickness shall not be below the specified thickness and the average thickness of four (4) random measurements for the finished grade is within + ¼ inch of the specified thickness.

The maximum variation from the specified width will not exceed +12 inches at any point. The compacted width is not consistently above the specified width and the average of any four random measurements along any ½ mile of road segment is within +4 inches of the specified width. Acceptance shall be in conformance with Contractor supplied documentation in accordance with Table 301-1

SPS 301-2 DPG (6/15)

Table 301-1—Acceptance Sampling and Testing Requirements.

Table 301-1

301.09 Measurement.

Replace the second paragraph with the following:

Measure aggregate by cubic yard compacted in place when payment is by contract quantities.

301.10 Payment

Delete the following:

Adjusted according to Subsection 106.

SPS 301-3 DPG (6/15)

Material or Product Acceptance Characteristic Sampling

Frequency

Point of Sampling

Aggregate Width Measured and tested conformance (Subsection 106.04)

Width 4 per Trailhead 4 per approach

Roadbed after processing

Aggregate Thickness Measured and tested conformance

(Subsection 106.04)

Thickness 4 per Trailhead

4 per Approach

Roadbed after processing

Section 601 - Minor Concrete Structures

Delete the entire specification and replace it with the following:

Description

601.01 This work shall consist of the requirements for the eighteen (18”) inch diameter, two foot, two inch (2’

2”) deep footings for each post for the bulletin boards and the fee tube and the concrete slab for the fee site board and tube.

Material

601.02 Conform to the following Subsections:

601.03

Air-entraining admixtures 711.02 Chemical admixtures 711.03 Coarse Aggregate 703.02 Curing material 711.01 Fine aggregate 703.01 Hydraulic Cement 701.01 Reinforcing steel 709.01 Water 725.01

601.03 Concrete Composition. Use the designated concrete composition:

Method A.

Proportion the cement, aggregate, and water to obtain concrete with good workability.

The concrete shall contain not less than “6.0” sacks of cement per cubic yard.

The slump shall be a maximum of four (4”) inches. The air content shall be 5-7%.

The twenty-eight (28) day minimum compressive strength shall be 3000 psi.

03 SPS 601-1 DPG (6/15)

Construction Requirements

601.04 General.

601.05 Placing Concrete.

Do not place concrete until footing hole has been inspected and approved by the Contracting Officers Representative (COR). Provide forty-eight (48) hours written notice prior to placement of any concrete.

Do not mix or place concrete when the temperature is, or is expected to be, less than 40°F unless adequate provisions are made to protect the concrete.

Place concrete to avoid segregation.

Do not use aluminum pipe, conduit, or troughs for transporting concrete. Do not apply water to plastic concrete surfaces during finishing operations.

601.06 Curing Concrete.

Cure concrete a minimum of seven (7) days. If high early strength cement is used, cure concrete a minimum of three (3) days. Broom the surface using a stiff bristled broom. Correct any irregularities while the concrete is plastic. Expansion joints shall be installed as SHOWN ON THE DRAWINGS. Expansion joints shall be installed between the bulletin board posts, fee tube and concrete footings for posts and fee tube, with ½” x 4” premolded expansion joint filler.

601.07 Acceptance.

Material for minor concrete structures will be evaluated under Subsections 106.03

Payment 601.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 601 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

601-2. Sampling and Testing Requirements

Provide the Contracting Officers Representative (COR) with the batch ticket as presented by the supplier.

SPS 601-2 DPG (6/15)

Section R930 – Bulletin Boards w/ Roof and Aggregate or Concrete Pad

DESCRIPTION

R930.01 This work shall consist of constructing and installing bulletin boards with Work roof. It shall include furnishing and installing all hardware, lumber and timbers as SHOWN ON THE DRAWINGS. Construct a ten (10) foot by twenty (20) foot, six (6) inch compacted depth, aggregate pad in the trailhead. The aggregate pad is subsidiary to this item.

Construct a ten (10) foot by twenty (20) foot, four (4) inch depth concrete pad for the bulletin board at the fee site.

MATERIALS

R930.02 Lumber, timber, hardware, posts, recycled plastic, laminated cedar and Requirements preservative treatment shall meet the requirements SHOWN ON THE

DRAWINGS.

Concrete composition for the footings shall meet the requirements of Subsection 601.03, Method A.

CONSTRUCTION

R930.03 The bulletin boards shall be constructed and installed as SHOWN ON Performance THE DRAWINGS. The aggregate pad location shall be stripped of topsoil four (4) inches deep. Place a 6 mil polyethelene, geotextile fabric cut to the pad shape. Furnish, place and compact to six (6) inches compacted depth, aggregate on the fabric. Compact the aggregate on the pad by two (2) passes of a mechanized, vibratory compactor. One (1) pass is down and back at the width of the compactor over the entire pad. The aggregate supply, hauling, placing and compacting is incidental to this item.

MEASUREMENT

R930.04 The method of measurement, as described in Section 109, will be Method DESIGNATED in the SCHEDULE OF ITEMS.

PAYMENT

R930.05 The accepted quantities will be paid for at the contract unit price for each pay item Payment shown in the SCHEDULE OF ITEMS.

Payment will be made under:

Pay Item Pay Unit

R930A Bulletin Board w/Roof Each And Aggregate Pad

R930B Bulletin Board w/Roof Each And Concrete Pad and Government Furnished Fee Tube

SPS R930-1 DPG (6/15)

Construction Notes

The Forest Service shall stake the trailhead, approach and bulletin board pad locations, The Contractor is responsible for incidental staking necessary for quality control and preservation of government staking.

Item 204 The tolerance classification for Item 204 is E.

The material excavated from the borrow source indicated on the site plan shall be used as fill material to construct the trailhead and approach.

Topsoil, four (4”) inches in depth, shall be removed from the borrow site, expanded trailhead and approach areas. Topsoil stockpile sites will be field located and approved by the COR.

Topsoil shall be spread on all areas disturbed by construction activity and used to landscape areas as designated by the COR. All topsoil removal, stockpiling and spreading shall be incidental to this item.

Item 301 The quantity of 301 - Aggregate Courses in the Summary of Quantities is compacted in place on the trailhead and approach. Loose quantity hauled shall include such additional material necessary to overcome the compaction effort. The contractor shall windrow the aggregate on the existing trailhead to be reapplied after the expanded trailhead area is graded at 2% to drain as staked by the government.

Item 601 Contractor shall construct a ten (10) foot by twenty (20) foot concrete slab for the bulletin board and fee-tube site as staked by the Engineer. Concrete shall meet the requirements of Section 601, Method A. The contractor shall place and compact to four (4) inches depth under the concrete slab, aggregate base material, subsidiary to this item.

Item 602 Install the contractor furnished eighteen (18) inch x fifty-six (56) foot CMP in the approach off County Road #23 per the typical culvert installation detail as staked by the COR. Do not order CMP until staked length is determined

Item R912 The trail shall be stripped of topsoil four (4”) inches deep. Topsoil shall be spread alongside trail. Additional topsoil shall be used in the local areas needing landscaping. Place four (4”) inches compacted depth of aggregate per the typical trail section. The trail centerline shall be staked by the COR. Aggregate surfacing material shall be compacted by mechanized, vibratory compaction equipment with two (2) passes. The final trail compacted elevation shall be at least one (1”) inch above the surrounding ground elevation. Furnishing, loading, hauling, placing and compacting the aggregate is incidental to this pay item.

SPECIAL PROJECT SPECIFICATION
Section 204 - Excavation and Embankment
204.10
Embankment Construction.
Delete the third paragraph and add the following:
204.11
Compaction.
Delete the first paragraph and replace it with the following:
Add the following compaction method:
204.13 Sloping, Shaping, and Finishing.
(a) Sloping.
Add the following:
SPECIAL PROJECT SPECIFICATION
204.13 Sloping, Shaping, and Finishing.
Delete section (d) and add the following:
204.14 Disposal of Unsuitable or Excess Material.
Delete the text of the first paragraph:
Table 204-1 Sampling and Testing Requirements.
Add the following note to the table:
301 - Untreated Aggregate Courses
301 Title Change
Change the title to: Section 301 - Aggregate Courses
301.01 Description
Add the following:
Percent Passing Mod. Class 5_
No.4 35-70%
L.A Abrasion 50%
Add the following:
SPECIAL PROJECT SPECIFICATION
301.04 Mixing and Spreading
Delete the first sentence of the first paragraph and add the following:
301.05 Compacting
301.06 Surface Tolerance
Delete the first paragraph and add the following:
Thickness and Width requirements:
Table 301-1—Acceptance Sampling and Testing Requirements.
301.09 Measurement.
SPECIAL PROJECT SPECIFICATION
Section 601 - Minor Concrete Structures
Delete the entire specification and replace it with the following:
Description
Material
03 SPS 601-1 DPG (6/15)
SPECIAL PROJECT SPECIFICATION
Construction Requirements
Payment
601-2. Sampling and Testing Requirements
SPECIAL PROJECT SPECIFICATION
Section R930 – Bulletin Boards w/ Roof and Aggregate or Concrete Pad
DESCRIPTION
MATERIALS
CONSTRUCTION
MEASUREMENT
PAYMENT

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