ATCH_2_Phase3.doc

ATCH 2 AG-0355-S-09-0004

West Fork Rock Creek Road #2071 Phase 3&4

Beartooth Ranger District, Custer National Forest

FY09 WEST FORK ROCK CREEK ROAD #2071

RECONSTRUCTION PHASE 3 & 4 PROJECT

UNITED STATES DEPARTMENT OF AGRICULTURE

NORTHERN REGION

CUSTER NATIONAL FOREST

BEARTOOTH RANGER DISTRICT

March 10, 2009

PHASE 3 CSI FORMATTED SPECIFICATIONS

SECTION 00100

MEASUREMENT AND PAYMENT

PART I - GENERAL

1.1 Measurement and Payment - 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 as included in the payment for items shown.

When more than one class, size, or thickness is specified in the SCHEDULE OF ITEMS for any pay item, suffixes will be added to the item number to differentiate between items to be bid.

1.2 Determination of Quantities - The following methods of measurement are used to determine contract quantities for payment.

For individual construction items, longitudinal and lateral measurements for area computations will be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for seeding, mulching, geotextiles, netting, erosion control blankets, and sodding will be along slope lines.

The average end area method will be used to compute volumes of excavation or embankment. However, if in the judgment of the Engineer, the average end area method is impractical, measurement will be made by volume in hauling vehicles or by other three dimensional methods.

Structures will be measured according to neat lines SHOWN ON THE DRAWINGS or as altered by the Engineer in writing to fit field conditions.

For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, and under drains, measurements will be made parallel to the base or foundation upon which the structures are placed. Pipe and pipe arch culverts shall be measured along center of invert; arches shall be measured at spring line.

For aggregates weighed for payment, the tonnage will not be adjusted for moisture content, unless otherwise provided.

For bituminous material, volumes will be measured at 60(F or will be corrected to the volume at 60(F by using ASTM D1250 for asphalts. Emulsified asphalt will be measured at 60(F, or measured by converting the gallonage at another temperature to gallonage at 60(F by means of the following formula:

Gallons at 60(F = Gallons at A(F

1+0.00025 (A(F - 60(F)

In which A(F is the temperature of the material at the time the gallonage is measured.

For vehicular shipments, net certified scale weights or weights based on certified volumes will be used as a basis of measurement. Measurements will be adjusted when bituminous material has been lost from the vehicle or the distributor, has been wasted, or has otherwise not been incorporated into this work. Determining true weights of hauling vehicles shall be made by weighing the empty vehicles at least once a day at the times the Engineer directs. Each vehicle shall bear a plainly legible identification mark.

When bituminous materials are shipped, net certified weights, or volume corrected for loss of foaming, can be used for computing quantities.

For standard manufactured items, such as fence, wire, plates, rolled shapes, pipe conduits, etc., identified by gauge, weight, section dimensions, etc., such identification shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances will be accepted.

1.3 Units of Measurement - Payment will be by units defined and determined according to U.S. Standard measure as follows:

A.

Acre – Make longitudinal and transverse measurements for area computations horizontally.

B.

Cubic Yard - A measurement computed by one of the following methods:

1.

Excavation, Embankment, or Borrow - The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

2.

Material in Place or Stockpile - The measurement computed with dimensions of the in-place material.

3.

Material in the Delivery Vehicle - The measurement computed using measurements of material in the hauling vehicles at the point of delivery. Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

C.

Cubic Yard Mile - A combination of linear and volumetric measurement meaning the movement of a cubic yard of material 1 mile.

D.

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

E.

Gallon – The quantity may be measured by any of the following methods:

1.

Measured volume container.

2.

Metered volume. Use an approved metering system

3.

Commercially packaged volumes.

F.

Hour – Measurement will be for the actual number of hours ordered and performed by the Contractor.

G.

Linear Foot – Measure from end to end, parallel to the base or foundation being measured, or horizontal.

H.

MFBM - One thousand board feet measure based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job.

I.

Mile – Measure horizontal along the centerline of each roadway, approach road, or ramp.

J.

Pound – If sacked or packaged material is furnished, the net weight as packed by the manufacturer may be used.

K.

Square Foot - Measure on a plane parallel to the surface being measured or horizontal.

L.

Square Yard – Measure on a plane parallel to the surface being measured or horizontal.

M.

Station - One hundred linear feet measured horizontally.

N.

Station Yard - A combination of linear and volumetric measurement meaning the movement of a cubic yard of material one station.

O.

Thousand Gallons Mile - A combination of linear and volumetric measurement meaning the movement of 1,000 gallons of material 1 mile.

P.

Ton - Short ton consisting of 2,000 pounds.

Q.

Ton Mile - A combination of linear and weight measurement meaning the movement of 1 ton of material 1 mile.

1.4 Methods of Measurement - One of the following methods of measurement for determining final payment is DESIGNATED on the SCHEDULE OF ITEMS for each pay item:

A.

Contract Quantities (CQ) and Design Quantities (DQ) - These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units SHOWN in the SCHEDULE OF ITEMS may be authorized under any of the following conditions:

1.

As a result of changes in the work authorized by the Contracting Officer.

2.

As a result of the Contracting Officer determining that errors exist in the original design data used to determine designed quantities that cause a pay item to change by more than 15 percent.

3.

As a result of the Contractor submitting to the Contracting Officer a written request showing evidence of errors in the original design data used to determine design quantities that cause a pay item total to change by more than 15 percent. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

B.

Staked Quantities (SQ) - These quantities are determined from staked measurements prior to construction.

C.

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

D.

Vehicle Quantities (VQ) - These quantities are measured or weighed in hauling vehicles.

E.

Lump Sum Quantities (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They will not be measured.

PART II - PRODUCTS (Not Applicable)

PART III - EXECUTION (Not Applicable)

END OF SECTION

SECTION 00110

QUALITY CONTROL AND QUANTITY MEASUREMENT

PART I - GENERAL

1.1 Scope - This work shall consist of providing quality control in conformance with the Inspection of Construction provisions of this contract to ensure compliance with the drawings, specifications, and provisions of the contract, and measuring the quantities of completed work in conformance with the provisions of the applicable specifications. The Contractor shall provide all personnel, equipment, tests, and reports necessary to meet the requirements of this specification.

PART II - PRODUCTS (Not Used)

PART III - EXECUTION

3.1 Records of Inspection and Tests A.

Inspection and Tests - The Contractor shall maintain current records of all inspections and tests performed.

The following format or one containing the following information will be acceptable to the government:

Project________________________ Contract No.______________________

Pay

Item No.

(Initials)

The Contractor shall certify in writing that all inspections and tests were performed in accordance with specifications.

B.

As-built Drawings - The Contractor shall maintain a set of the contract drawings depicting as-built conditions. These drawings shall be maintained in a current condition and shall be available for review. All variations from contract drawings shall be indicated in red on the drawings. Upon completion of the contract work, as-built drawings shall be submitted to the Engineer.

3.2 Certifications and Measurements

A.

Offsite Produced Materials - The Contractor shall furnish certificates executed by the manufacturer, supplier, or vendor, stipulating that all offsite produced materials incorporated into the work meet the applicable requirements SHOWN ON THE DRAWINGS or stated in the specifications. Incidental purchases needed to remedy minor shortages of material shall be certified by the Contractor.

B.

Quantity Measurements - The Contractor shall make all measurements for computation of quantities for all work items except those specified for payment by Designed Quantity (DQ). The Contractor shall compute the quantities for periodic progress payments; the Contracting Officer will compute the quantities for the final payment based on measurements taken by the Contractor. All Contractor measurements are subject to verification. The Contractor shall submit all field notes, calculation sheets, and other data used to determine quantities. The Contractor shall certify in writing as to the accuracy of the measurements and computations submitted.

The following format or one containing the following information will be acceptable to the Government:

Project ______________________ Contract No._______________________

PART IV - PAYMENT

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

END OF SECTION

SECTION 00113

EQUIPMENT RENTAL

PART I - GENERAL

1.1 This work consists of furnishing and operating equipment for construction work ordered by the CO and not otherwise provided for under the contract.

PART II – EQUIPMENT

2.1 Submit the model number, serial number, and description of each piece of equipment before use. Make equipment available for inspection and approval before use.

A. Excavator. The excavator shall be minimum 148 hp. Excavator shall have a thumb with minimum 1 cy bucket.

B. End Dump. The end dump shall be 1990 or newer. Shall have 12 cy capacity.

PART III - EXECUTION

3.1 Equipment rented under this section shall be furnished on a fully operated basis. The equipment shall be of modern design, in good operating condition, and furnished with a competent qualified operator. Exhaust stacks of all engines, except those with exhaust driven turbochargers, shall be equipped with spark arresters that will prevent expulsion of sparks from the engine into the atmosphere. All equipment except dump trucks shall have rollover protective canopies and backup alarms.

3.2 Moving of equipment under its own power, when so ordered by the CO, will constitute ordered work. Nonproductive time such as lack of operating supplies or qualified operator; down time for repairs, maintenance, refueling, and other service time; time lost by reason of breakdown or being stuck; loading time of specified accessories; etc. shall not constitute ordered work.

3.3 The Government will maintain a daily record of use of all equipment used on the project. Work ordered by the CO shall be recorded in not less than 1/2 hour increments. The daily records (shift tickets) shall be signed by the Contractor and COR/Inspector for each days work.

Each shift ticket shall include the following information:

Contract number and bid item applicable to the equipment.

Name of Contractor

Date and hours of operation authorized for payment to the nearest ¼ hour

Date and hours of nonproductive time

PART IV – PAYMENT

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

A copy of the daily record(s) must be submitted along with the Contractor’s invoice for payment. The Contractor will be paid the bid price times the hours worked for each hour of acceptable ordered work that is recorded in the daily record. No payment shall be made for nonproductive time.

END OF SECTION

SECTION 00151

MOBILIZATION

PART I - GENERAL

1.1 This work consists of moving personnnel, equipment, material, and incidentals to the project and performing all work necessary before beginning work at the project site. Mobilization includes the obtaining of permits, insurance, and bonds.

1.2 Method of Measurement – The method of measurement, as described in Section 00100, will be designated in the Schedule of Items.

1.3 Payment - The accepted quantity, measured as provided in Section 00100, will be paid at the contract price per unit of measurement for the Section 00151 pay item shown in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

Progress payments for mobilization lump sum will be paid as follows:

(a) Bond premiums will be reimbursed according to FAR Clause 52.232-5 Payments Under Fixed-Price Construction Contracts, after receipt of the evidence of payment.

(b) When 5 percent of the original contract amount is earned from other bid items, 50 percent of the mobilization item, or 5 percent of the original contract amount, whichever is less, will be paid.

(c) When 10 percent of the original contract amount is earned from other bid items, 100 percent of the mobilization item, or 10 percent of the original contract amount, whichever is less, will be paid.

(d) Any portion of the mobilization item in excess of 10 percent of the original contract amount will be paid after final acceptance.

PART II - PRODUCTS - (Not Applicable)

PART III – EXECUTION – (Not Applicable)

END OF SECTION

SECTION 00152

CONSTRUCTION SURVEYING AND STAKING

PART I - GENERAL

1.1 This work consists of furnishing qualified personnel and necessary equipment and material to survey, stake, calculate, and record data for the control of work.

a. Personnel. Furnish technically qualified survey crews experienced in construction surveying and staking.

b. Equipment. Furnish survey instruments and supporting equipment.

c. Material. Furnish acceptable tools, supplies, flourescent pink paint and flagging, lath, and stakes. Stakes shall be minimum 18” length, lath shall be minimum 3’.

PART II – PRODUCTS (Not Used)

PART III – EXECUTION

3.1 The Contractor shall reestablish all control along the road, Stations 0+00 to 169+06.3. The Contractor shall be required to verify all control elevations in field match plan elevations. Contractor shall set all control necessary to complete the construction staking. Control if existing shall be staked with a stake and lath. Stakes shall indicate (CP - #) to show Control Point Number. All stakes and lath shall be painted fluorescent pink and pink survey ribbon shall be attached to both. Missing control shall be set by the Contractor using 18” #5 rebar, with fluorescent pink flagging and yellow cap.

3.2 Design drawings and staking data will be supplied to the Contractor. The Contractor shall be responsible for compiling survey data and control point data for field use. The following table, Table 1, displays how information will be furnished to the Contractor.

Table 1 – Sample Survey Notes

Station/Description Offset Elevation

0+50

Subgrade : Datum #1

-18.38 7883.71

-11.10 7878.85

-8.10 7879.85

-7.00 7879.88

-0.00 7880.09

7.00 7879.88

8.10 7879.85

11.10 7878.85

13.62 7880.53

3.3 Contractor shall be responsible for performing additional calculations from Government furnished data and drawings.

3.4 Contractor shall stake roadway cross sections normal to centerline. Cross sections shall be staked at 50 ft intervals and at all culvert locations. All staking notes shall be recorded in field notebooks and provide two copies to the government.

3.5 Set slope stakes on both sides of centerline at the cross section locations and culvert locations. Slope stakes shall be painted fluorescent pink and have pink ribbon. Set Reference Point (RP) stakes with lath offset 15 feet from the slope stakes and outside the clearing limits. RP stakes shall have all staking information, station, and offset information. Paint with fluorescent pink and place pink flagging. Establish slope stakes in the field as the actual point of intersection of the design roadway slope with the natural ground line.

3.6 Stake culverts SHOWN ON THE DRAWINGS to fit field conditions. The final culvert locations may differ from the plans. There are a number of culverts not shown on the plans that will have to be field staked, See Road Log. The Contractor shall set invert elevations and determine actual culvert lengths at each culvert location prior to ordering culverts. Record the diameter, actual field measured culvert length, and type of culvert. Record the vertical and horizontal distance from the reference stake to the invert at both ends of the culvert. Culverts shall have a catch basin AS SHOWN ON THE DRAWINGS. Minimum cover shall be 12” over culverts or AS SHOWN ON THE DRAWINGS.

3.7 Stake and grade ditches to make the culvert functional.

3.8 Flag clearing limits at 50 ft increments with white striped flagging. Clearing flagging may be tied on trees and shall be As Shown on Drawings.

PART IV – MEASUREMENT AND PAYMENT

4.1 Measurement will be lump sum for the completed survey.

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

END OF SECTION

SECTION 00205

ROCK BLASTING

PART I – GENERAL

1.1 This work consists of fracturing rock and constructing stable final rock cut faces using controlled blasting and production blasting techniques.

Minor blasting to reduce large rocks to less than 48 inches may be encountered on this project. Vertical or horizontal shifts in alignment are anticipated to eliminate or minimize number of rocks to be blasted.

Controlled blasting uses explosives to form a shear plane in the rock along a specified backslope. Controlled blasting includes pre-splitting and cushion blasting.

Production blasting uses explosives to fracture rock.

PART II – PRODUCTS (NOT USED)

PART III - EXECUTION

3.1 Regulations. Furnish copies or other proof of all-applicable permits and licenses. Comply with Federal, State, and local regulations on the purchase, transportation, storage, and use of explosive material. Federal regulations include the following:

a. Safety and health. OSHA, 29 CFR Part 1926, Subpart U.

b. Storage, security, and accountability. Bureau of Alcohol, Tobacco, and Firearms (BATF), 27 CFR Part 181.

c. Shipment. DOT, 49 CFR Parts 171-179, 390-397.

d. National Forest Service Manual (FSM) 6745 Explosives and Blasting

3.2 Blaster-in-Charge. Designate in writing a blaster-in-charge. Submit evidence that the blaster-in-charge has a valid State blaster’s license or other license accepted by the State where the project is located and issued by an equivalent licensing body for the type of blasting required.

3.3 Blasting Plans. Blasting plans are for quality control and record keeping purposes and are to be signed by the blaster-in-charge. The review and acceptance of blasting plans does not relieve the Contractor of the responsibility for using existing drilling and blasting technology, and for obtaining the required results.

Do not deliver explosives to the project until the general blasting plan is accepted.

a. General blasting plan. Submit a general blasting plan for acceptance at least 14 days before drilling operations begin. Include, as a minimum, the following safety and procedural details:

1) Working procedures and safety precautions for storing, transporting, handling, and detonating explosives.

2) Proposed product selection for both dry and wet holes. Furnish Manufacturer’s Material Safety Data Sheets for all explosives, primers, initiators, and other blasting devices.

3) Typical plan and section views for both production and controlled blasting, including maximum length of the shot, burden, hole spacing, hole inclination, hole depth, hole diameter, subdrill depth, and powder factor.

4) Proposed initiation and delay methods and delay times.

5) Proposed format for providing all the required information for the site specific blasting plans.

b. Site-specific blasting plans. After the general blasting plan is accepted, submit site-specific blasting plans for acceptance before drilling operations begin. Allow up to three days for review of these plans. Include the following information in the site-specific blasting plan.

1) Site drawings showing a scaled map of the blast area and cross-sectional views which indicate beginning and ending stations, free face location, hole spacing, hole diameter, hole depth, burden, hole inclination, and subdrill depth. Include on the drawings any significant joints or bedding planes within the blast zone and incorporate this geology into the blast design.

2) Where blasting may affect nearby structures or utilities, provide method of monitoring and controlling blast vibrations according to Subsection 205.06.

3) Loading pattern diagram showing the location and amount of each type of explosive to be used in the holes including primer and initiators and the location, type, and depth of stemming, column heights, and overall powder factor for each type of loading.

4) Delay and initiation diagram showing delay pattern, sequence, and delay times.

3.4 Preblast condition survey and vibration monitoring and control. When blasting near buildings, structures, or utilities that may be subject to damage from ground or airblast vibrations, provide a blast vibration specialist. Provide a specialist with at least 5 consecutive years experience in vibration monitoring for at least 3 projects. Fourteen days before blasting, submit the name and qualifications of the blast vibration specialist including the following:

a. Project names, locations, and services performed.

b. Name and phone number of owner/agency contact who can verify the experience of the specialist.

Before blasting, arrange for a pre-blast condition survey of nearby buildings, structures, or utilities, which could be at risk from blasting damage. Use a survey method acceptable to the Contractor’s insurance company. Damage resulting from blasting is the Contractor’s responsibility. Make all pre-blast condition survey records available to the CO. Notify the CO and occupants of nearby buildings at least 24 hours before blasting.

Control vibrations with properly designed delay sequences and allowable charge weights per delay when blasting near buildings, structures, or utilities that may be subject to damage from blast-induced vibrations. Base allowable charge weights per delay by carrying out trial blasts and measuring vibration levels. Conduct test blasts with blast plan modifications that limit ground and airblast vibrations to a level that will not cause damage to nearby buildings, structures, or utilities as determined by the blast vibration specialist.

When vibration damage to buildings, structures, or utilities is possible, monitor each blast with approved seismographs and airblast monitoring equipment located at acceptable locations. Use seismographs capable of recording particle velocity for three mutually perpendicular components of vibration. The blast vibration specialist shall interpret the seismograph records and airblast records to ensure that the data is effectively used in the control of the blasting operations.

Limit blasting induced vibrations in saturated soils and/or steep slopes as designated.

Notify the owners of nearby utilities at least 24 hours before blasting.

3.5 Test Blasting. Drill, blast, and excavate one or more test sections as proposed in the blasting plan before full-scale drilling and blasting. Test blasts may be made away from or at the final slope line.

Space blast holes for the cushion (trim) method of controlled blasting no more than 60 inches apart for the initial test blast. Space blast holes for the presplitting method of controlled blasting no more than 30 inches apart for the initial test blast. Adjust the spacing as approved. Use the approved spacing in the full-scale blasting or subsequent test blasts if necessary.

A test blast is unacceptable when it results in fragmentation beyond the final rock face, fly rock, excessive vibration, air blast, overbreak, damage to the final rock face, or overhang. When a test blast is unacceptable, revise the blasting plan and make an additional test blast.

3.6 Blasting.

a. General. Drill and blast according to the blasting plan.

Before drilling, remove overburden soil and loose rock along the top of the excavation for at least 30 feet beyond the hole drilling limits or to the end of the cut.

Cap all holes to prevent unwanted backfill. Place a stake next to each hole with hole number and total depth drilled.

Use the types of explosives and blasting accessories necessary to obtain the required results. A bottom charge may be larger than the line charges if no overbreak results.

Free blast holes of obstructions for their entire depth. Place charges without caving the blast hole walls. Stem the upper portion of all blast holes with dry sand or other granular material passing the 3/8-inch sieve. Do not stem the hole with drill cuttings.

Following a blast, stop work in the entire blast area, and check for misfires before allowing worker to return to excavate the rock.

Remove or stabilize all cut face rock that is loose, hanging, or potentially dangerous. Scale by hand or machine methods as approved by the CO. Leave minor irregularities or surface variations in place if they do not create a hazard. Drill the next lift only after the cleanup work and stabilization work is complete.

If blasting operations cause fracturing of the final rock face, repair or stabilize it in an approved manner at no cost to the Government. Repair or stabilization may include removal, rock bolting, rock dowels, or other stabilization techniques.

Halt blasting operations when any of the following occur and perform additional test blast:

1) Slopes are unstable;

2) Slopes exceed tolerances or overhangs are created;

3) Backslope damage occurs;

4) Safety of the public is jeopardized;

5) Property or natural features are endangered;

6) Fly rock is generated; or

7) Excessive ground or airblast vibrations occur in an area where damage to buildings, structures, or utilities is possible.

b. Drill logs. Submit drill logs. Include the following:

1) Blast plan map showing designated hole numbers; and

2) Individual hole logs completed and signed by the driller that show total depth drilled, depths and descriptions of significant conditions encountered during drilling that may affect loading such as water or voids, and date drilled.

c. Controlled blasting. When test blasts indicate the need for controlled blasting, use controlled blasting methods to form the final rock cut faces when the rock height is more than 10 feet above ditch grade and the staked slope is 2V:1H or steeper.

Controlled blasting includes only those holes drilled on the row furthest from the free face and that are drilled on the design slope.

Use downhole angle or fan drill blast holes for pioneering the tops of rock cuts or preparing a working platform for controlled blasting. Use the blast hole diameter and hole spacing established for controlled blasting during the test blasts.

Drill controlled blast holes not greater than 4 inches in diameter along the final rock face line. Drill controlled blast holes within 3 inches of the proposed surface location. Drill controlled blast holes at least 30 feet beyond the production holes to be detonated or to the end of the cut.

Use drilling equipment with mechanical or electrical-mechanical devices that accurately control the angle the drill enters the rock. Select a lift height and conduct drilling operations so the blast hole spacing and downhole alignment does not vary more than 9 inches from the proposed spacing and alignment. When more than 5 percent of the holes exceed the variance, reduce the lift height and modify the drilling operations until the blast holes are within the allowable variance. Maximum lift height is 50 feet.

A 12-inch offset is allowed for a working bench at the bottom of each lift for drilling the next lower controlled blasting hole pattern. Adjust the drill inclination angle or the initial drill collar location so the required ditch cross-section is obtained when the bench is used.

Drilling 20 inches below the ditch bottom is allowed for removing the toe.

Do not use bulk ammonium nitrate and fuel oil for controlled blasting.

Where presplitting, delay the nearest production blast row at least 25 milliseconds after blasting the presplit line. Presplit a minimum of 30 feet ahead of production blasting zone.

Where cushion (trim) blasting, delay the cushion blast row from 25 to 75 milliseconds after blasting the nearest production row.

d. Production blasting. Drill the row of production blast holes closest to the controlled blast line parallel and no closer than 6 feet to the controlled blast line. Do not drill production blast holes lower than the bottom of the controlled blast holes.

Detonate production holes on a delay sequence toward a free face.

3.7 After Blast Reports. Within 3 days after a blast and before the next blast, submit an after-blast report that includes the following:

a. Results of the blast and whether or not blasting objectives were met. If blasting objectives were not met, submit proposed changes to future site-specific blasting plans that will produce acceptable results and proposed repair or stabilization plan for unstable or blast damaged backslopes.

b. Blasting logs that include the following:

1) All actual dimensions of the shot including blast hole depths, hole diameter, burden, spacing, subdrilling, stemming, powder loads, and timing; and

2) A drawing or sketch showing the direction of the face, or faces, and the physical shot layout.

c. If a seismograph was used, provide the following:

1) Identification of instrument used;

2) Name of qualified observer and interpreter;

3) Distance and direction of recording station from blast area;

4) Type of ground recording station and material on which the instrument is sitting;

5) Maximum particle velocity in each direction;

6) A dated and signed copy of the seismograph readings; and

7) Post-blast condition survey.

d. Results of airblast monitoring.

e. Results of post blast condition survey.

PART IV – MEASUREMENT & PAYMENT

Measurement

4.1 Measure the Section 205 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

4.2 Measure controlled blasting by the square foot of face shot as shown in the blasting plan.

4.3 Measure controlled blast hole by the linear foot based on the actual length of drilling as recorded in the blasting log. Do not measure vertical holes or horizontal holes.

4.4 Measure production blasting per each rock requiring blasting to reduce the rock size to less than 48 inches.

Payment The accepted quantities will be paid at the contract price per unit of measurement for the Section 00205 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

SECTION 02010

CLEARING, BRUSHING, AND GRUBBING

PART I – GENERAL

1.0 Summary. This work consists of clearing and grubbing within the clearing limits AS SHOWN ON THE DRAWINGS. This work also includes removal of individual trees outside the clearing limits which will be marked for removal by the Government.

PART II – PRODUCTS (NOT USED)

PART III – EXECUTION

3.1 General. Perform all work within designated limits. Do not damage vegetation designated to remain. If vegetation designated to remain is damaged or destroyed, repair or replace the vegetation in an acceptable manner. Where possible, preserve all vegetation adjacent to bodies of water. Treat cuts or scarred surfaces of trees and shrubs with tree wound dressing.

3.2 Clearing. Within the clearing limits, clear trees, brush, down timber, and other vegetation as follows:

A. Cut all trees so they fall within the clearing limits. Use controlled falling to prevent injury or defacement to structures, other trees, or property.

B. In areas of cut slope rounding, cut stumps flush with or below the final ground line.

C. In areas outside the excavation, embankment, and slope rounding limits, cut stumps to within 6 inches of the ground.

D. Trim tree branches that extend over the road subgrade to attain a clear height of 15 feet above the finished road surface. Trim branches flush with tree. If required, remove other branches to present a balanced appearance.

E. Trees that are marked for individual removal shall be cut so they fall within the clearing limits. See Section 3.4 for Utilization Standards for merchantable logs. Portions of non-merchantable logs outside the clearing limits may remain on the ground provided they are limbed and will not roll or cause a safety issue.

3.3 Grubbing. Grub deep enough to remove stumps, roots, buried logs, moss, turf, brush, or other vegetative debris as follows:

A. Grub all areas to be excavated except for cut slope rounding areas.

B. Grub all embankment areas. Undisturbed stumps may be left in place if they protrude less than 6 inches above the original ground and will be covered with more than 4 feet of embankment.

C. Grub pits, channel changes, and ditches only to the depth necessary for the excavation.

D. Backfill stump holes and other grubbing holes with backfill material to the level of the surrounding ground. Compact backfill with a minimum of 3 passes with whacker or other suitable compaction equipment until visual displacement ceases.

3.4 Disposal.

A. Timber Utilization Standards. Utilization standards for merchantable trees are listed below. Fall and buck material into lengths not to exceed 30 feet. Vary bucking lengths where required to include all suitable material meeting Utilization Standards.

All species: Merchantable species minimum 6” inch diameter 4 ½ feet from the ground to a 4 inch top. Minimum log length is 8 feet.

B. Deck merchantable logs such that logs are piled parallel to the other; can reasonably be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Log decks are to be free of brush and soil. Merchantable timber cut on State Land shall be decked on State Land. All decking areas shall be approved by the COR.

C. Non-merchantable logs (logs which do not meet Timber Utilization Standards) shall be decked for firewood use by the public in areas that provide reasonable access. Decks must be minimum 10’ off the shoulder of the road. Cut material into full tree lengths to a 4” top, and remove all limbs, tops, and stumps. All decking areas shall be approved by the COR. Non-merchantable timber cut on State Land shall be decked on State Land.

D. Pieces of wood less than 3 inches in diameter and 3 feet in length may be scattered within the clearing limits. Construction slash shall not be allowed in lakes, meadows, streams, or streambeds. Immediately remove construction slash that interferes with drainage structures.

E. Pile construction slash not disposed of as described above in areas approved by the COR for burning by the Forest Service. Place and construct piles so future burning will not damage remaining trees. Keep piles reasonably free of dirt from stumps. Cut logs not suitable for firewood into lengths of less than 20 feet prior to placement in the pile.

F. Bury stumps in trenches or pits approved by the COR. Do not bury debris inside the roadway prism limits, beneath drainage ditches, or in any areas subject to free-flowing water. Place debris in alternating layers of 4 feet of debris covered with 2 feet of earth material. Distribute stumps and other large pieces to form a dense mass and minimize air voids. Cover the top layer of buried debris with at least 1 foot of compacted earth. Grade and shape the area. Seed the disturbed area.

G. State Lands: Transport all construction slash, stumps, brush etc. created during clearing and grubbing operations off state lands and incorporate them into slash from National Forest System lands for disposal.

H. Dispose of all non vegetative debris in a legal manner off of National Forest System Lands.

PART IV – PAYMENT

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

END OF SECTION

SECTION 02110

ROADWAY OBLITERATION

PART I – GENERAL

1.1 This work consists of obliterating or closing roadways and other areas outside the roadway prism.

Roadway obliteration methods are designated as follows:

A.

Method 1. Obliterate the roadway be restoring to approximate original ground contours. Keep excavated material within the original construction limits. Finish slopes to provide gradual transitions in slope adjustments without noticeable breaks. Limit disturbance to soils and vegetation. Slope all areas to drain and return water to natural pathways. Remove all fill material to the natural channel. Treat slash and clearing debris according to Section 02010.

B.

Method 2. Close roads by filling ditches and outsloping the roadbed to drain. Remove and slope embankment material at localized drainages to restore the natural drainage patterns. Eliminate all ruts and low spots that could hold water.

PART II – PRODUCTS (Not Used)

PART III – EXECUTION

3.1 Scarify or rip the gravel, crushed stone, or other nonrigid surface, base, and subbase material. Mix the scarified or ripped material with the underlying soil. Bury the mixture under at least 12 inches of soil.

PART IV – MEASUREMENT AND PAYMENT

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

END OF SECTION

SECTION 02120

ROAD GRADING

PART I – GENERAL

1.1 This work consists of blading and shaping of the roadbed, shoulders, and turnouts to maintain the original cross section and grade of the road. Includes removing ruts, washes, slough, and other irregularities that prevent normal runoff from the road surface.

PART II – PRODUCTS (NOT USED)

PART III – EXECUTION

3.1 Blading and shaping operations shall be performed in such a manner as to conserve existing materials. Blading of aggregate surfaced roads shall be performed in such a manner that the base is not disturbed and no surface material is lost either in ditches or over the road shoulders. Blading on unsurfaced roads shall be performed in such a manner that no base material is lost.

3.2 All ruts, chuckholes, and washes shall be removed by cutting to the bottom of such defects to provide for uniform compaction of roadbed material. "High blading", which is merely filling the depressions with loose material, will not be acceptable.

3.3 Settlement sections shall be repaired by cutting from the roadbed on each end of the settled area and filling into the settled area to provide smooth transitions to adjacent road grades.

3.4 Blading and shaping operations shall not undercut road backslopes.

3.5 Surface material shall be bladed from one edge of the road to the other in a berm in order to eliminate any segregation prior to spreading. Sections having segregated materials after spreading shall be reprocessed and spread.

3.6 On roads constructed with a roadside ditch, the roadbed blading and shaping operations shall be performed so as to maintain crown at the centerline of the roadbed, except on curves where crown is omitted. Road cross section shall slope uniformly both ways from the crown apex to the shoulders at a minimum grade of two percent and a maximum grade of six percent.

3.7 Roads constructed without a roadside ditch, shall be uniformly insloped or outsloped the entire width of the roadbed. The inslope or outslope grade shall be a minimum of two percent and a maximum of four percent.

3.8 Existing drainage dips shall be cleaned and the outslope grade restored to equal or exceed the gradient of the road.

3.9 On aggregate surfaced roads, slough may be bladed across the road, provided it is not deposited in chuckholes, washes or ruts in the road surface. Such material shall be sidecast on stable fill slopes or natural ground out of streams, streambeds or other waterways. Care must be exercised so as not to contaminate the aggregate surface.

3.10 Loose material located along the outside shoulder and along the ditch line of the road shall be salvaged and incorporated into the roadbed by windrowing on the road prior to shaping. The ditches shall be pulled and the material incorporated into the roadbed. Oversized material shall be feathered to the outside shoulder of the road so that there will be no berm or ridge in the completed road section.

3.11 Widened roadway sections at curves, fills, and turnouts shall also be included with the blading of the roadway. The shoulder line shall be definite, continuous, and smooth, with no abrupt changes in alignment. Blading shall be done in such a manner to neither widen or narrow the existing roadway.

3.12 Existing aggregate surfacing material shall be bladed so as to conserve suitable surface material. Blading shall not be performed unless sufficient moisture is present to prevent segregation or enable compaction and/or blading shall not be performed when excess moisture prevents proper blending and compaction, as determined by the Contracting Officer and/or COR.

3.13 Wood, rocks, and other debris shall be removed from roadside drainage ditches to provide unobstructed flow of water. The backslope of the ditch shall not be undercut by ditch cleaning operations. The slope to the road shoulder shall be maintained at an approximate ratio of 3:1 from the bottom of the ditch to the edge of the roadbed. Typical depth of roadside drainage ditches is one foot below roadbed. Existing ditch blocks shall be reshaped as needed for effective drainage through culverts.

3.14 Rocks or other material remaining on the roadway surface after the final blading that fail to pass through a 4 inch sieve shall be removed (by hand if necessary) and side cast on the downhill road slope or disposed of as otherwise agreed.

3.15 At the conclusion of the blading and shaping operations, the roadbed shall be smoothed and dressed up to produce a uniform grade and cross section, and a surface free of hollows, depressions and projections above the adjacent roadbed surface. No Berm or ridge of any material shall be left along either shoulder of the roadbed unless directed by the Contracting Officer's Representative.

PART IV – PAYMENT

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

END OF SECTION

SECTION 02220

EXCAVATION AND EMBANKMENT

PART I - GENERAL

1.1 This work shall consist of excavation and shaping roadways and turnouts, borrow excavation, drainage excavation, removal of slide material, excavation of unsuitable material, embankment construction, and disposal of all excavated material necessary for the completion of construction including roadway ditches, channel changes, furrows, slope rounding, benches, berms, dips, approaches, and subsidiary work.

1.2 Excavation - Excavation shall consist of the excavation and disposal of all excavated material, regardless of its nature, that is not included under other pay items listed in the Schedule of Items.

1.3 Method of Measurement - The method of measurement will be designated in the schedule of items and measured in accordance with Section 00100.

A.

The measurement of excavation will include:

1.

Construction excavation.

2.

Rock and unsuitable material below the required grade and unsuitable material beneath embankment areas.

3.

Furrow ditches outside the roadway, except when furrow ditches are included in the Schedule of Items.

4.

Topsoil and other material removed and stockpiled as directed.

5.

Borrow material used in the work, except when borrow is included in the Schedule of Items.

6.

The volume of conserved materials taken from stockpiles and used in the work.

7.

Slide material not attributable to negligence of the Contractor.

B.

The measurement of excavation will not include the following:

1.

Material used for other than approved purposes.

2.

Unauthorized excavation or borrow.

3.

Quantity of material excavated from slope rounding.

4.

Over breakage from the backslope in rock excavation requiring blasting.

5.

Material scarified in place to receive the first layer of embankment.

6.

Benching or stepping existing ground for embankment foundation.

7.

Stepping or scaling cut slopes.

C.

When designed quantities are designated in the Schedule of Items as the method of measurement, the original design data has been established on the basis of the undisturbed ground surface elevations.

D.

When staked quantities are shown in the Schedule of Items, excavation quantities will be determined by the average end area method using slope stake information taken prior to construction.

PART II - PRODUCTS (Not Applicable)

PART III - EXECUTION

3.1 Clearing and Grubbing - Clearing and grubbing shall be accomplished in accordance with Section 02010 before work under this Section begins. The grubbing of stumps may proceed concurrently with excavation. Excavation and placement operations shall be conducted so material to be treated under Section 02010 will not be incorporated in the roadway.

3.2 Pioneering - Pioneering operations for the top of excavation slopes, toe of embankments, or pioneer road construction shall prevent undercutting of the final excavation slope, depositing of materials outside of the construction limits, and any restriction of drainage.

3.3 Utilization of Excavated Materials - All suitable, excavated material shall be used in the construction of embankments, subgrades, shoulders, slopes, bedding, and backfill for structures and for other purposes as shown on the drawings.

A.

Excess Excavation - Designed excess excavation shall be disposed of at locations designated by COR adjacent to the project area.

B.

Rock for Slope Protection - Excavated rock suitable for protection of embankments may be conserved and used in lieu of a designated materials source.

C.

Conserving Material - Material encountered in the excavation, suitable for cushion, finishing, or other purposes, may be conserved and utilized instead of materials from designated sources. Excessively wet material that is otherwise suitable for embankment shall be field drained and dried before placement.

D.

Excavation of Unsuitable Material - Unsuitable material shall be excavated. Disposal will be as designated by COR. Excavated areas shall be backfilled with suitable material when necessary to complete the work. Frozen material shall not be placed in embankments. Rocks that are too large to be incorporated into the embankment shall be broken for incorporation, maneuvered to the face of the embankment, and embedded so that they will not roll or obstruct the use and maintenance of the roadbed, or moved to approved locations.

E.

Conservation of Topsoil - Suitable topsoil shall be removed, transported, and deposited in the designated stockpile areas.

3.4 Drainage Excavation - Drainage excavation shall include construction of side ditches, minor channel changes, inlet and outlet ditches, furrow ditches, ditches constructed along roads but beyond the roadway limits, and other minor earth drainage structures as shown on the drawings. Excavated material shall be utilized in accordance with paragraph 3.3.

3.5 Finishing Roadbed - Rock requiring blasting, rippable rock, and boulders shall be excavated to a minimum depth of 6 inches below subgrade unless otherwise shown on the drawings, and replaced with suitable cushion material obtained from within the construction limits or from sources shown on the drawings. Undrained pockets in a rock surface, within the limits of the roadbed, shall be excavated to properly drain or be filled with approved impermeable material.

For roads receiving base or surface course, rocks larger than 4 inches that do not protrude above the subgrade more than one-third of the depth of the base or surface course, or 3 inches, whichever is less, may be left in place.

For unsurfaced roads, unless other wise shown on the drawings, the top 4 inches below the finished surface shall consist of cushion material containing rocks less than 4 inches in greatest dimension that are developed by scarification, rolling, or importing suitable material obtained from sources shown on the drawings.

The subgrade shall be shaped, dressed, and compacted when required. Low sections, holes, or depressions shall be brought to grade with suitable material.

3.6 Snow Removal - Snow or ice shall not be incorporated in the embankment. Snow shall be removed in advance of the work and deposited beyond the construction limits in a manner that will not cause resource damage nor waste material.

3.7 Finishing Slopes - Finished slopes shall conform reasonably to the lines staked on the ground or shown on the drawings. The finished slope shall be left in a roughened condition to facilitate the establishment of vegetative growth.