J.4 Supplemental Specifications.pdf

109 – MEASUREMENT AND PAYMENT

109.1 General. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work and materials will be considered incidental to and included in the payment of the pay items in the Schedule of Items. Payment will be for all labor, equipment, transportation, supervision, operating supplies, materials, and incidentals necessary to complete the work as specified.

Work measured and paid for under one pay item will not be paid for under any other pay item.

109.2 Units of Measurement. Payment will be by units defined and determined according to U.S. standard measure and by the following.

(A) Lump Sum (LS) The quantities that denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

(B) Linear Foot (LF) Measurement of 12 inches along a reference line.

(C) Cubic Yard (CY) The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

(D) Each (EA) One complete unit which may consist of one or more parts. The quantity is the actual number or units completed and accepted.

(E) Hour (H) Measurements will be for the actual number of hours performed by the contractor.

(F) Square Foot (SF) Measured on a plane parallel to the surface being measured.

J.4 Supplemental Specifications

109.4 Methods of Measurement. One of the following methods of measurement for determining payment is Designated on the Schedule of Items for each Pay Item.

(A) Actual Quantities. (AQ) these quantities are determined from measurements of completed work.

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

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

1. As a result of changes in the work approved by the CO.

2. As a result of the CO determining that errors exist in the original design that cause a Pay Item quantity to change by 15 percent or more.

3. As a result of the contractor submitting to the CO a written request showing evidence of errors in the original design that cause a Pay Item quantity to change by 15 percent of more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the design

109.05 Scope of Payment. Payment for contract work is provided, either directly or indirectly, under the pay items listed in the bid schedule.

(a) Direct payment. Payment is provided directly under a pay item listed in the bid schedule when one of the following applies:

(1) The work is measured in the Measurement Subsection of the Section ordering the work and the bid schedule contains a pay item for the work from the Section ordering the work.

(2) The Measurement Subsection of the Section ordering the work, references another Section for measuring the work and the bid schedule contains a pay item for the work from the referenced Section.

(b) Indirect payment. Work for which direct payment is not provided is a subsidiary obligation of the Contractor. Payment for such work is indirectly included under other pay items listed in the bid schedule. This includes instances when the Section ordering the work references another Section for performing the work and the work is not referenced in the Measurement Subsection of the Section ordering the work.

Compensation provided by the pay items included in the bid schedule is full payment for performing contract work in a complete and acceptable manner. Risk, loss, damage, or expense arising out of the nature or prosecution of the work is included in the compensation provided by the pay items.

Work measured and paid for under one pay item will not be paid for under other pay items.

The quantities listed in the bid schedule are approximate unless designated as a contract quantity.

Limit pay quantities to the quantities staked, ordered, or otherwise authorized before performing the work. Payment will be made for the actual quantities of work performed and accepted or material furnished according to the contract. No payment will be made for work performed in excess of that staked, ordered, or otherwise authorized.

151 – MOBILIZATION

151.01 Description

This work consists of moving personnel, equipment, material and incidentals to the project and performing all work necessary before beginning work at the project site. Mobilization includes the costs associated with obtaining permits, insurance, and bonds. Mobilization is not intended to pay the costs of materials before they are used on the project site. Work also includes cleaning of all equipment used at the project site. Clean all construction equipment prior to entry on the project site. Remove all dirt, plant parts and material that may carry noxious weed seeds into the area. Only construction equipment inspected by the Forest Service will be allowed to operate within the project area. Treat subsequent move-ins of equipment the same as the initial move-in. Clean truck beds and dump boxes hauling to the project site prior to entering the work area.”

Payment

151.02 Basis. Pay for the accepted work at the contract unit price for the PAY ITEM SHOWN IN THE

SCHEDULE OF ITEMS.

(a) Reimburse for bond premiums before issuing the Notice to Proceed if evidence of payment is received.

(b) When 5 percent or more of the original contract amount is earned from other PAY ITEMS, pay mobilization at the rate of 50 percent, or up to 5 percent of the original contract amount, whichever is less.

(c) When 10 percent or more of the original contract amount is earned from other PAY ITEMS, pay mobilization at the rate of 100 percent, or up to 10 percent of the original contract amount, whichever is less.

(d) Pay any unpaid amount for mobilization upon final acceptance of all work items.

Make payment under:

PAY ITEM PAY UNIT

151 Mobilization …………………………………………………………...LS

DPG SPS 151 (3/2017)

203. — REMOVAL OF STRUCTURES AND OBSTRUCTIONS

Description

203.01 This work consists of salvaging, removing, and disposing of two culverts

Construction Requirements

203.04 Removing Material.

Do not allow debris to enter waterways, or areas designated not to be disturbed.

Backfill and compact cavities left by structure removal with suitable backfill material. As near as possible return excavated area to the original contours. Compact backfill with hauling and spreading equipment. Excavate according to 204.6

203.05 Disposing of Material. Dispose culverts legally off National Forest System Lands. Dispose of any Hazardous material according to Federal, state, and local regulations.

203.06 Acceptance is based on visual inspection of the work for compliance with the contract and prevailing industry standards.

Measurement

203.07 Measure the Section 203 pay items listed in the bid schedule according to Subsection 109.02.

Payment

203.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 203 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.

DPG SPS 203 (11/2021)

204 – EXCAVATION AND EMBANKMENT

204.01 This work consists of excavating material and constructing embankments. This includes constructing Water Bars, hauling, stockpiling, placing, disposing, sloping, shaping, compacting, and finishing earthen and rocky material.

204.02 Definitions.

(a) Excavation. Excavation consists of the following:

(1) Roadway excavation. All material excavated from within the construction limits, right-of-way or easement areas. Roadway excavation includes all material encountered regardless of its nature or characteristics.

(2) Subexcavation. Material excavated from below subgrade elevation in cut sections or from below the original ground line in embankment sections.

(b) Embankment construction. Embankment construction consists of placing and compacting roadway or borrow excavation. This work includes:

(1) Preparing foundation for embankment.

(2) Constructing roadway embankments.

(3) Backfilling sub excavated areas, holes, pits, and other depressions.

(c) Conserved topsoil. Excavated material conserved from the roadway excavation and embankment foundation areas that is suitable for growth of grass, cover crops, or native vegetation.

(d) Waste. Excess and unsuitable roadway excavation and subexcavation that cannot be used.

Construction Requirements

204.04 Preparation for Roadway Excavation and Embankment Construction. Clear the area of vegetation and obstructions. During all operations under this contract, the Contractor shall exercise reasonable measures to prevent or minimize soil erosion and pollution of water and other resources. Do not damage vegetation designated to remain. If damage occurs, repair or replace the vegetation in an acceptable manner. Where possible, preserve vegetation adjacent to bodies of water.

204.05 Conserved Topsoil. Conserve topsoil from roadway excavation and embankment foundation areas.

Stockpile conserved topsoil in low windrows immediately beyond the rounding limits of cut and embankment slopes or in other approved locations. Separate topsoil from other excavated material. Place conserved topsoil on completed slopes according to Section 624.

204.06 Roadway Excavation. Excavate as follows. Do not disturb material and vegetation outside the construction limits. Incorporate only suitable material into embankments. At the end of each day's operations, shape to drain and compact the work area to a uniform cross-section. Eliminate all ruts and low spots that could hold water. Remove snow and ice in advance of the work and deposit beyond the roadway limits in a manner that will not waste material or generate sediment. Do not incorporate snow and ice into embankments. Excavation shall be placed on new road alignment, the existing road 5626 or other designated areas. Compact excavation according to Section 204.11. shape slopes according to Section 204.13

204.10 Embankment Construction. Incorporate only suitable roadway excavation material into the embankment. Construct embankments as follows: At the end of each day's operations, shape to drain and compact the embankment surface to a uniform cross-section. Eliminate all ruts and low spots that could hold water. During all stages of construction, route and distribute hauling and leveling equipment over the width and length of each layer of material. Compact each layer according to Subsection 204.11 before placing the next layer.

204.11 Compaction. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer until visual displacement ceases. Place embankment material in horizontal layers not exceeding 6 inches in compacted thickness.

204.13 Sloping, Shaping, and Finishing. as follows:

Sloping. Leave all earth slopes with uniform roughened surfaces. leave no vertical slopes.

Shaping. Shape the subgrade to a smooth surface and to the cross-section required. Shape slopes to gradually transition into slope adjustments without noticeable breaks. At the ends of cuts and at intersections of cuts and embankments, adjust slopes in the horizontal and vertical planes to blend into each other or into the natural ground.

Finishing. Finish the roadbed to be smooth and uniform and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material. Ensure that the subgrade is visibly moist during shaping and dressing.

204.14 Excess Material. Spread excess excavation material evenly at designated sites adjacent to the project work area as directed by the CO.

Measurement

204.16 Measure the Section 204 pay items listed in the bid schedule according to Subsection 109.02.

Payment

204.17 The accepted quantities will be paid at the contract price per unit of measurement for the Section 204 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

DPG SPS 204 (11/2021)

Section 301. — AGGREGATE AND OVERSIZE ROCK

301.01 This work consists of furnishing, hauling, placing, and compacting SD DOT ¾” Gravel surfacing and oversized rock.

Place aggregate surfacing in the wheel ruts of the existing road and new road alignment.

Place oversize rock to construct low water crossings 12’ wide 1’ deep. When completed the top of the creek crossings shall match the elevation of the existing creek bed.

The Contractor shall maintain haul routes to pre hauling condition or better. The haul routes shall be inspected by the Forest Service and the Contractor prior to hauling aggregate and oversize material.

Material

301.02 Provide SD DOT ¾” Gravel for road surfacing and oversized rock for crossings. Possible material source is Merriman Pit in Summerville, SD. The COR shall approve the physical characteristics and quality of the materials before placing on the road or in the crossings.

Construction Requirements

301.04 Mixing and Spreading. Add water as necessary to obtain optimum moisture. Mix the aggregate and adjust the moisture content to obtain a uniform mixture. Spread and shape the mixture on the road to form a crown.

Do not place the mixture in a layer exceeding 6 inches 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.

Adjust the moisture content of the aggregate to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Compact the aggregate on the road by operating spreading and hauling equipment over the full width of each layer of the aggregate. The desired degree of compaction will be considered obtained when the surface is tightly bound, and visual displacement ceases under the operation of compaction equipment. Blade the surfaces of each layer during the compaction operations to remove irregularities and produce a smooth surface.

301.06 Surface Tolerance

The maximum variation from the compacted specified thickness is 1/2 inch. The compacted thickness shall not be below the specified thickness and the average thickness of four (4) random measurements for the road segments is within + 1/2 inch of the specified thickness. The maximum variation from the specified width shall not be below the specified width and will not exceed +1 foot at any point. Correct defective areas by loosening the material, adding, or removing material, reshaping, and compacting.

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. Acceptance is based on visual inspection of the work for compliance with the contract and prevailing standards.

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 haul vehicles. Contractor shall take precautions in loading of aggregate from stockpiles to prevent segregation of material. The contractor shall maintain a record of number of truck loads and amounts of aggregate hauled and supply the record to the COR

Payment

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

DPG SPS 301 (11/2021

Section 624. — TOPSOIL

624.01 This work consists of placing conserved topsoil.

Construction Requirements

624.03 Preparing Areas. Shape slopes and disturbed areas to be covered with topsoil. Leave slopes in a uniform and roughened condition.

624.04 Placing Topsoil. Provide at least 2 days’ notice before the start of topsoil placement. Place topsoil on all disturbed areas. Do not place topsoil when the ground or topsoil is frozen, excessively wet, or otherwise in a condition detrimental to the work. Keep the roadway surfaces clean during hauling and spreading operations.

Break clods and lumps with harrows, disks, or other appropriate equipment to provide a uniform textured soil.

Construct longitudinal depressions at least 2 inches deep perpendicular to the natural flow of water without overly compacting the topsoil surface.

624.05 Acceptance. Acceptance is based on visual inspection of the work for compliance with the contract and prevailing standards.

Measurement

624.06 Measure the Section 624 pay items listed in the bid schedule according to Subsection 109.02 and the following as applicable: Measure conserved topsoil in its original position.

Payment

624.07 The accepted quantities will be paid at the contract price per unit of measurement for the Section 624 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See

DPG SPS 624 (11/2021)