Attachment_06_-_2019_FP-14_Supplemental_Specs.pdf

Mark Twain NF Forest Service

FP-14

Supplemental Specifications

Preface

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-14 for construction of National Forest System Roads. This can be found for download at this website https://flh.fhwa.dot.gov/resources/estimate/ https://flh.fhwa.dot.gov/resources/estimate/

General Provisions to FP-14:

Section 201. - CLEARING AND GRUBBING

Description

201.01 This work consists of clearing and grubbing within the clearing limits designated in the plans.

Material

201.02 Conform to the following Subsections:

Backfill material 704.03 Tree wound dressing 713.08(g)

Construction Requirements

201.03 General. Construct erosion control measures according to Section 157. Perform work within designated limits.

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. Treat cuts or scarred surfaces of trees and shrubs with tree wound dressing.

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

(a) Cut trees so they fall within the clearing limits;

(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 (150 millimeters) of the ground; and

(d) Trim tree branches that extend over the road surface and shoulders to attain a clear height of 14 feet ( 4.3 meters). If required, remove other branches to present a balanced appearance. Trim according to accepted tree surgery practices. Treat wounds with tree wound dressing.

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

(a) Grub areas to be excavated, except for cut slope rounding areas;

(b) Grub embankment areas. Undisturbed stumps less than 24 inches (600 millimeters) in diameter may be left in place if they protrude less than 6 inches (150 millimeters) above the original ground and will be covered with more than 48 inches (1200 millimeters) of embankment.

Remove all other stumps;

(c) Grub pits, channel changes, and ditches only to the depth necessary for the excavation; and

(d) Backfill stump holes and other grubbing holes with backfill material to the level of the surrounding ground according to Subsection 209.09. Compact backfill according to Subsection 209.10.

201.06 Disposal.

All merchantable timber within the clearing limits on either private or Government land remains the property of the landowners. Deck according to 201.04(f) on each owner's property adjacent to the road in approved locations.

When work is being performed under a timber sale contract, dispose of merchantable timber designated for removal according to the B (BT) provisions of the timber sale contract.

201.07 Acceptance. Clearing and grubbing will be evaluated under Subsection 106.02.

Material for tree wound dressing will be evaluated under Subsection 106.03.

Backfilling and compacting of stumps and grubbing holes will be evaluated under Section 209.

Section 203. - REMOVAL OF STRUCTURES AND OBSTRUCTIONS

Description

203.01 This work consists of disposing of clearing slash, salvaging, removing, and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.

Material

203.02 Conform to the following Section and Subsection:

Backfill material 704.03 Minor concrete 601 Geotextile 714

Construction Requirements

203.03 Salvaging Material. Salvage with reasonable care material designated to be salvaged.

Salvage in readily transportable sections or pieces. Replace or repair members, pins, nuts, plates, and related hardware damaged, lost, or destroyed during the salvage operation. Securely attach parts to adjacent members or pack them in sturdy boxes with the contents clearly marked.

Match mark members of salvaged structures. Submit one set of drawings according to Section 104 identifying the members and their respective match marks.

Stockpile salvaged material at a designated area on the project.

203.05 Disposing of Material. Dispose of debris, unsuitable material, and excess material as follows:

(a) Remove from project. Recycle or dispose of material legally off the project. Submit a statement documenting the nature and quantity of material processed or sold for recycling.

Otherwise, submit a signed copy of the disposal agreement before disposal begins.

(b) Burn. Obtain necessary burning permits. Submit a copy of the burning permits before burning begins.

Burn using high intensity burning processes that produce few emissions. Provide a watchperson during the burning operations.

When burning is complete, extinguish the fire so no smoldering debris remains. Deposit construction slash so that burning does not damage standing trees. Dispose of unburned material as directed by the CO.

(c) Bury. Bury debris in trenches or pits in approved areas within the right-of-way when approved. Do not bury debris inside the roadway prism limits, beneath drainage ditches, or in areas subject to free-flowing water.

Place debris in alternating layers of 48 inches (1200 millimeters) of debris covered with 24 inches (600 millimeters) of earth material. Distribute stumps, logs, and other large pieces to form a dense mass and minimize air voids. Cover the top layer of buried debris with at least 12 inches (300 millimeters) of compacted earth. Grade and shape the area. Seed and mulch disposal areas on Government property according to Section 625.

(d) Hazardous material. Submit a copy of disposal permits. Dispose of material according to Federal, state, and local regulations.

Dispose of lead contaminated steel either by transporting to an approved scrap facility for recycling or remelt; or remove and dispose of lead contamination in an appropriate waste facility.

(1) Disposal plan. Submit a detailed disposal plan that includes how material will be handled, loaded, and transported to the disposal facility. Include the name and address of the facility where the material will be taken. Describe steps that will be taken to ensure that lead contamination will be contained throughout the process. Measures may include additional steps or precautions when lifting and handling the steel on site.

(2) Transport and delivery. Include the material safety data sheet (MSDS) with the material to the disposal facility. Ensure that loads transported from the site are adequately contained and covered to prevent dispersion in route to the disposal facility. Submit a copy of the receiving report from the disposal facility specifically acknowledging that the material being delivered is contaminated with lead paint.

(3) Lead paint removal. If the Contractor chooses to salvage the steel members, the paint may be removed subject to the following requirements:

(a) Remove lead contaminated paint in an appropriate containment facility;

(b) Comply with the requirements as listed in Subsection 563.05; and

(c) Manifest and dispose of lead contaminated waste according to the requirements of 40 CFR 260 through 268 – Resource Conservation and Recovery Act (RCRA).

(e) 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. Obtain approval for pioneer roads. A pioneer road may be constructed to provide an area for placement of windrows, provided the excavated material is kept within the clearing limits and does not adversely affect the road construction.

(f) Scattering. Scatter pieces of wood less than 3 inches in diameter and 3 feet in length within the clearing limits. Do not place construction slash in lakes, meadows, streams, or streambeds.

Immediately remove construction slash that interferes with drainage structures.

Scatter construction slash outside the clearing limits 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.

(g) Chipping or Grinding. Use an approved chipping machine to grind slash and stumps greater than 3 inches in diameter and longer than 3 feet. Deposit chips or ground woody material 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.

(h) 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.

(i) Decking Firewood Material. Remove brush from decks. Limb and deck logs that do not meet Utilization Standards according to Subsection 201.04 as directed by the CO. Cut logs to lengths less than 30 feet. Ensure that logs stacks are stable and free of brush and soil.

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

(k) 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. Cut un-merchantable logs into lengths of less than 20 feet.

(l) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. Do not place slash closer than 2 feet below subgrade. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets.

(m) Hydrological Sensitive Placement. Where required use this method in combination with other designated methods to dispose of material to reduce erosion and to aid in re-vegetation:

1. Place windrow segments on contours, wrap in type I geotextile.

2. Place logs as log erosion barriers on contours. Place logs so that 80% of their length is on the ground surface.

3. Scatter slash on bare or disturbed areas within or outside the clearing limits as directed.

4. Scatter chips or ground woody material on bare or disturbed areas within or outside the clearing limits as directed.

5. Place stumps in swales or on sites to form planting pockets. Place windrow segments on contours, wrap in type I geotextile.

203.06 Acceptance. Removal of structures and obstructions will be evaluated under Subsection 106.02.

Backfilling and compacting cavities left by structures will be evaluated under Section 209.

Minor concrete will be evaluated under Section 601.

Measurement

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

Section 204. - EXCAVATION AND EMBANKMENT

204.11 Compaction.

Delete and Add the following:

Compact the aggregate using one of the following methods, as specified in the Schedule of Items:

(a) Compaction A. Compact by operating construction equipment on full width of surface in 6” lifts until visual displacement ceases. Moisture may be needed if determined by visual inspection.

(b) Compaction B. Compact the aggregate by operating compaction equipment over the total width until visible deformation ceases. A minimum of three complete vibratory roller passes shall be made at a moisture content suitable for compaction.

Measurement

204.16 – Delete entire Section 204.16 and replace with the following:

Measure roadway excavation by station.

Section 253. - Gabions and Revet Mattresses

Construction Requirements

253.01 Add the following:

This work also includes the installation of articulated concrete block revetment mat.

Material

Cellular Concrete Block 725.10 Revetment Cable 709.02 Geotextile type IV 714.01

253.03 General. Delete the first sentence and substitute the following:

Survey according to Section 152 and verify the limits of the structure.

253.05 Structure Erection. Add the following to the first paragraph:

For gabion structures, grade the foundation for a width equal to the width of the gabion plus 2 feet. Where gabions are set on rocky foundations, place 6 inches of select granular backfill under the baskets.

253.08 Revet Mattresses. Add the following:

(a) Design Prefabricate articulated concrete block revetment mat as an assembly of concrete blocks, with specific hydraulic capacities, laced with revetment cables. Articulated concrete block revetment mat may be assembled on-site. The concrete cells or blocks may be open or closed as described and may vary in dimension. The blocks will be square and should not be less than 8” or more than 16” in dimension. The open cell units have two (2) vertical openings of rectangular cross section with sufficient wall thickness to resist breakage during shipping and installation. Secure all blocks in any given mat with a minimum of two (2) cables each.

Incorporate interlocking surfaces of each block that minimize lateral displacement of the blocks within the mats when lifted by the longitudinal revetment cables.

Interlocking surfaces must not protrude beyond the perimeter of the blocks to such an extent that they reduce the flexibility or articulation capability of the cellular mats or become damaged or broken when the mats are lifted during shipment or placement. Once in place the interlocking surfaces of the mats shall minimize the lateral displacement of the blocks even if the cables should become damaged or removed. A minimum of 18° between any given row or column of blocks in the uplift direction and a minimum of 45° in the downward direction must be maintained in the mats. Insert cables into the mats allowing for lifting loops at one end of the mat with the corresponding cable ends spliced together to form a lifting loop at the other end of the mat. Insert cables after sufficient time has been allowed for the concrete to complete the curing process. Place the articulated concrete block revetment mat on the filter fabric.

(b) Physical Requirements

PHYSICAL REQUIREMENTS

(c) Grading

Grade the slope to a smooth plane surface to achieve good contact between the slope face and the geotextile, and between the geotextile and the entire bottom surface of the articulated concrete blocks. Remove or re-grade slope from all deformities, roots, grade stakes, and stones which project normal to the local slope face. Place compacted homogenous material to fill all holes, “pockmarks”, slope board teeth marks, footprints, or other voids greater than 1.0 inch in depth normal to the local slope face. Place compacted homogenous material to fill all grooves or depressions greater than 0.5 inches in depth normal to the local slope face with a dimension exceeding 1.0 foot in any direction. Uniformly compact the slope and slope face as directed by COR. Excavate and prepare anchor trenches, flanking trenches, and toe trenches or aprons according to the plans. Uniformly grade the anchor trench hinge-point at the top of the slope to prevent dips or bumps greater than 0.5 inches over or under the local grade. Uniformly grade the anchor trench hinge-point to the width that allows good contact between the articulated concrete blocks and the underlying grade at the hinge point. Obtain approval of the subgrade from the COR prior to placement of filter fabric and articulated concrete blocks.

(d) Placement

Place the articulated concrete blocks on top on the subgrade. No individual block within the plane of placed articulated concrete blocks shall protrude more than one inch or as otherwise specified by the COR. If placed as a large mattress, use a spreader bar or other approved device to lift and place the mats in the proper position with a crane or other approved equipment. Place mats side-by-side and/or end-to-end so that they abut one another. The geotextile shall be laid from the downstream end of project to the upstream end, so the geotextile joints are shingled to direct flow over the joint and to prevent undermining. Intimate contact with the subsurface is critical to the systems performance in the field. The gaps between each mat shall not be greater than 2 inches. The upstream two (2) rows of each mat system shall be entrenched and buried at a 45° downward direction into the ground. Type 2 riprap shall be used to fill the entrenched edge. Backfill the trench flush with the top of the blocks. Installation instructions may be altered per manufacturer’s recommendation.

Compressive Strength Net Area Min. p.s.i.

Water Absorption Mx. Lb/ft3

Avg. of 3 units Individual Unit Avg. of 3 units Individual Unit

4,000 3,500 9.1 11.7

253.09 Acceptance. Delete the second paragraph and add the following:

Material for gabion structures and revet mattresses will be evaluated under Subsections 106.02, 106.03, and the following:

(a) All units shall be sound and free of defects that would interfere with either the proper placement of the unit or impair the performance of the system. Surface cracks incidental to the usual methods of manufacture, or surface chipping resulting from customary methods of handling in shipment and delivery, shall not be deemed ground for rejection. Cracks exceeding

0.25 inches in width and/or 1.0 inch in depth shall be deemed grounds for rejection. Chipping resulting in a weight loss exceeding 10% of the average weight of a concrete unit shall be deemed grounds for rejection.

Section 301. - UNTREATED AGGREGATE COURSES

301.05 Compacting. Delete the entire Section 301.05 and replace with the following:

Compact the aggregate using one of the following methods, as specified in the Schedule of Items:

(a) Compaction A. Compact the aggregate by operating spreading and hauling equipment over the full width of each layer of the aggregate until visual displacement ceases.

(b) Compaction B. Moisten or dry the aggregate to a uniform moisture content suitable for compaction. Operate smooth drum rollers over the full width of each layer until visual displacement ceases, making no fewer than three complete passes.

(c) Compaction C. Compact each layer of aggregate to a density of at least 95 percent of the maximum density, as determined by AASHTO T 99, method C or D.

(1) Compaction C-1. Compact each layer of aggregate to a density of at least 96 percent of the maximum density, as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, MT 59807).

(d) Compaction D. Compact each layer of aggregate to a density of at least 95 percent of the maximum density, as determined by AASHTO T 180, method C or D.

(1) Compaction D-1. Compact each layer of aggregate to a density of at least 100 percent of the maximum density as determined by the Modified Marshall Hammer Compaction Method (available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, MT 59807).

(e) Compaction E. Ensure that materials produced by pit-run and grid-rolling are visually moist and compacted using operating compaction equipment defined in Subsection 203.15(b), (c), and (d) over the full width of each layer until visual displacement ceases.

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 density of each layer in accordance with AASHTO T 191, T 205, T 238, T 217, T 239, T 255, or T 224.

Section 302. - MINOR CRUSHED AGGREGATE

Delete section 302 in its entirety and replace with the following:

302.01 This work consists of furnishing and placing crushed aggregate for bedding, backfill and roadway aggregate course.

302.02 Conform to the following Subsections:

Crushed aggregate 703.06 Water 725.01

302.03 Preparing Surface. Prepare the roadway surface on which aggregate course is placed as shown in the typical section and Description of Work.

302.04 Placing Crushed Aggregate.

(a) Roadway aggregate. Mix the aggregate and adjust the moisture content to obtain a uniform mixture with a moisture content suitable for compaction. Spread and shape the mixture on the prepared surface in a uniform layer.

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 302.05(a) before placing the next layer.

(b) Bedding and backfill aggregate. Place and shape the mixture in layers that, when compacted, do not exceed 6 inches in depth.

302.05 Compacting and Finishing Crushed Aggregate.

Delete and add the following:

(a) Roadway aggregate. Compact using the methods below, specified in the Schedule of Items.

(1) Method 1. Operate equipment over the full width of spread aggregate.

(2) Method 2. Compact the aggregate by operating compaction equipment over the total width until visible deformation ceases. A minimum of three complete roller passes shall be made at a moisture content suitable for compaction.

(b) Bedding and backfill aggregate. Compact in 6 inch lifts by using a Forest Service approved mechanical compactor until no visible deformation is observed over the entire area of aggregate.

302.06 Acceptance. Crushed aggregate will be evaluated under Subsections 106.02 and 106.03.

Furnish a production certification including gradation and quality properties for each source.

Construction of roadway aggregate courses will be evaluated under Subsections 106.02 and

106.04. Method 2 compaction will be evaluated under Section 106.04.

Placement of bedding and backfill aggregate will be evaluated under Subsection 106.02 and Section 209.

Preparation of the surfaces on which crushed aggregate is placed will be evaluated under Section 303 and 209 as applicable.

302.07 Measure the Section 302 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure crushed aggregate by the Ton as certified from the quarry.

Payment

302.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 302 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

Section 303. - Road Reconditioning

Delete Section 303 in its entirety and replace with the following.

303.01 This work consists of reconditioning ditches, shoulders, roadbeds, parking areas, turnouts, approach road intersections, cattle guards, asphalt surfaces and aggregate surfaces.

Construct out slopes, clean and maintain all roadbed drainage structures, mowing and limbing.

303.02 Conform to the following Subsection:

Water 725.01

303.03 Ditch Reconditioning. Remove all slide material, sediment, vegetation, and other debris from the existing ditches and culvert inlets and outlets. Reshape ditches and culvert inlets and outlets to achieve positive drainage and a uniform ditch width, depth, and grade. Dispose of waste in locations directed by the COR.

303.04 Shoulder Reconditioning. Repair soft and unstable areas according to Subsection

204.07. Remove all slide material, vegetation, and other debris from existing shoulders including shoulders of parking areas, turnouts, and other widened areas. Dispose of waste in locations directed by the COR.

303.05 Roadbed Reconditioning Repair soft and unstable areas according to Subsection 204.07.

Remove all organic, deleterious material larger than 6 inches from the top 6 inches of subgrade.

Dispose of waste in locations directed by the COR. Scarify, rip and shape the traveled way and shoulders. Remove surface irregularities and shape to provide a uniform surface.

Dispose of rock larger than 4 inches brought to the surface during scarification.

For portions of roads not requiring scarification, the roadbed may contain rocks larger than 4 inches provided they do not extend above the finished roadbed surface. Reduce in place or remove rock extending above the finished roadbed surface. Dispose of removed rock in locations directed by the COR.

Compact using the following method as specified:

(a) Compaction A. Operate equipment over the full width.

(b) Compaction B. Operate rollers over the full width of each layer until visual displacement ceases, but not fewer than three complete passes. Use rollers that 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 weight of 6 tons, 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.

(c) Compaction C. Operate vibratory roller over the full width of each layer until visual displacement ceases, but not fewer than seven complete passes.

303.06 Aggregate Surface Reconditioning. Repair soft and unstable areas to the full depth of the aggregate surface and according to Subsection 204.07. Scarify to the depth of the aggregate surface or to a depth of 8 inches, whichever is less, and remove surface irregularities. Reshape, finish, and compact the entire aggregate surface according to Section 302.

303.07 Roadway Reconditioning. Perform all the applicable work described in Subsections

303.03 through 303.06.

Maintain the existing cross slope or crown unless otherwise shown on the plans. Establish a blading pattern that will retain the surfacing on the roadbed and provide a through mixing of the materials within the completed surface width.

Blade and shape the subgrade for both surfaced and unsurfaced roads when moisture content is suitable for compaction.

303.08 Mowing and Limbing. Equipment shall be capable of cutting grass, weeds and woody plant growth with a rotary or disc type mower. A side arm mount mower will be needed to perform mowing of the areas outside the ditch line and limbing of trees. All equipment must have a minimum rating of 50 horsepower. The equipment must be equipped with all safety devices required by Federal and State safety laws and regulations. The safety equipment must be in working order.

Side mount mowers shall be capable of cutting grass, weeds and small woody plant growth six

(6) inches in diameter or less at mowing height. The mowers must have sufficient reach or length to perform the mowing without the tractor leaving the clearing limits.

Batwing mowers and other pull type mowers may be used for mowing of shoulders and ditches but may not be used in the limbing of the trees.

Each unit of equipment that is used in this contract will be subject to a pre-use inspection by the COR. Any equipment failing to meet the physical or safety requirements will be replaced or repaired at the Contractor's expense.

All equipment used in the mowing and limbing of roads will be cleaned prior to mobilizing to the project area. All equipment will be inspected by the COR before any road work begins. For roads identified in the contract as having documented non-native invasive plant infestations, all equipment will be cleaned at the identified roads prior to moving to the next road, in order to reduce the spread of non-native plant seeds.

All equipment used in the work shall be of the proper type, of a sufficient size, in good operating condition, and otherwise meet the equipment specifications for each type of maintenance work.

The Contracting Officer may order removal and replacement of any unsatisfactory equipment at the Contractor's expense. All equipment must meet all Federal and State licensing and safety requirements. Exhaust stacks of all engines, except those with exhaust-driven turbochargers, shall be equipped with spark arresters that will prevent the expulsion of sparks. The moving of equipment shall be considered incidental to the contract.

Roadside mowing consists of cutting grass, weeds and small woody plant growth six (6) inches in diameter or less at mowing height. This includes cutting around road signs, natural obstacles and appurtenances. The roadsides and roadbed will be mowed to a six (6) inch maximum height.

Typically the required mowing width will be tree line to tree line. Where clearing limits are not clearly defined the COR will direct work to be done in this area. The mowing of the centerline of the road is also required as well as the turnarounds at the end of the road.

Required mowing width will vary from a minimum of five (5) feet outside the ditch line, or to the established clearing limit. See roadside mowing typical for details of areas to be mowed.

Contractors are encouraged to inspect roads before submitting a quote. No additional payment will be made for variable widths.

All cut and fill slopes too steep to mow with equipment shall be cut to a six (6) inch maximum height by hand or other method approved by the COR to a minimum of six (6) feet from the ditchline of cuts and the shoulder of fill areas.

Roadside limbing shall consist of removing all overhanging limbs from treeline to treeline to a fourteen (14) feet clearing height leaving no snags or stubs. Limbs shall be cut from trees as close to flush as possible. Brush and limbs removed shall be taken 5 feet beyond the tree line.

Trees that are accidently damaged by the Contractors operation that are unsitely or would impair growth shall be cut six (6) inches above ground and also placed 5 feet beyond treeline.

Any cuttings that may fall in the traveled portion of the roadway shall be removed. This material shall be removed from the roadway and disposed of 5 feet beyond the tree line unless chipped or broken into small pieces by the equipment. Any cuttings that fall in the outlet ditches or the inlets and outlets of culverts shall be removed and disposed of 5 feet beyond the tree line. Do not place any cuttings in the outlet ditches. Cuttings along private property shall be hauled to and scattered on Forest Service property or chipped.

All rocks, trees, or other objects dislodged by the Contractor's operation that fall into the drainages or traveled way shall be removed. This also includes any rocks, trees, limbs and other objects already lying in the right-of-way.

The Contractor shall be responsible for damage to the road surface, road ditches, culverts, informational posts, guardrails, signs, etc. Damaged items shall be replaced or repaired at the Contractor's expense.

The Contractor shall exercise due caution and care when working to prevent undue conflict with public users of roads. Roads shall remain passable to traffic during the Contractor's operations.

Flashing signals and a reflectorized slow moving vehicle emblem shall be installed on all slow-moving equipment (i.e., road graders, tractors, trucks, etc.) working on the roadway so that they are visible to oncoming traffic.

The Contractor shall post warning signs on both ends of the section of the roadway being worked to warn road users of the work in progress. The Contractor shall use a diamond shaped sign of at least thirty (30) inches in size. The signs shall read road work/machinery ahead and be placed at each end of the area being worked facing oncoming traffic. The signs are to be placed on the right side of the road to where they can be easily seen to allow traffic adequate time to respond. Signs will be moved as needed so that a sign does not precede or lag machinery by more than one mile. Signs shall be posted only when machinery is actually working.

All work shall be scheduled so that at the end of a day's work, the road is passable for the type of traffic normally using the road. Road Maintenance segments will generally not be permitted to exceed one (1) mile intervals on through roads and two (2) mile intervals on dead-end roads.

303.09 Pulverizing. Scarify the surface to the designated depth and width. Pulverize all material to a size one and one half times the maximum sized aggregate or to 1½ inches, whichever is greater. Mix, spread, compact, and finish the material according to Section 301.

303.10 Acceptance. Delete Table 303-1. Road reconditioning work will be evaluated under Subsections 106.02 and 106.04. Mowing and limbing work will be evaluated under Subsections 303.08.

303.11 Measure the Section 303 items listed in the Schedule of Items according to Subsection

109.02 and the following as applicable.

Measure ditch reconditioning and shoulder reconditioning by the mile, by the station or foot horizontally along the centerline of the roadway for each side of the roadway.

Measure roadbed reconditioning, aggregate surface reconditioning, roadway reconditioning, mowing and limbing and pulverizing by the mile, by the station, or by the square yard.

Payment

303.12 The accepted quantities will be paid at the contract price per unit of measurement for the Section 303 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

Section 412. – Asphalt Tack Coat

Add Section 412.08 with the following:

412.08 Contractor will be responsible for measurements of all areas where tack coat is required and will submit as a Lump Sum bid.

Section 413. – Asphalt Pavement Milling

Delete Section 413.05 in its entirety and replace with the following.

413.05 Contractor will be responsible for measurements of all areas where milling is required and will submit as a Lump Sum bid.

Section 602. - Culverts and Drains

602.03_nat_us_09_06_2005

602.03 General.

Add the following:

Ensure that the final installed alignment of all pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less.

602.05_1005_us_08_01_2005 Delete the second paragraph and replace with the following.

Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Section 625. - Turf Establishment

625.03 General.

Delete the first sentence and add the following:

Apply turf establishment to portions of slopes, ditches, waste areas, and other disturbed areas within 14 days after being constructed to template lines unless otherwise specified in writing by the CO.

625.04 Preparing Seedbed.

Delete the second sentence of the first paragraph.

Delete the third paragraph.

625.05 Watering

Delete the entire paragraph.

625.06 Fertilizing.

Delete the entire subsection and add the following.

Apply fertilizer having a chemical analysis as listed in (c) below by the following methods.

Apply seed and fertilizer in one application.

(a) Dry Method. Apply the fertilizer with approved power driven seeders, drills, fertilizer spreaders or other mechanical equipment. Hand operated methods are satisfactory on areas inaccessible to mechanical equipment.

(b) Hydraulic method. Use hydraulic-type equipment capable of providing a uniform application using water as the carrying agent. Add fertilizer to the slurry and mix before adding seed.

(c) Chemical analysis. Apply fertilizer at the rate of 240 pounds per acre. Apply fertilizer having the following chemical analysis.

Nutrient Percent Nitrogen, N 27 Phosphorus, P2O5 10 Potassium, K 10

Fertilizer having a different chemical analysis may be used if approved in advance by the

CO.

625.07 Seeding.

Delete the first sentence and add the following.

Apply seed mix shown in (c) below by the following methods.

(a) Dry method.

Delete the third sentence.

Add the following after subsection (b).

(c) Seed Mix. In terms of pure live seed, furnish and apply the following kinds and amounts of seed. Obtain the pounds of seed to furnish per acre by dividing the pounds of pure live seed required per acre by the product of the percent purity and percent germination.

Example: 5 lbs. Pure Live Seed/Acre = 6.55 lbs. Commercial Seed/Acre

0.90 X 0.85 (Purity = 90% and Germination = 85%)

Kind of Seed Quantity of Pure Live Seed (Lbs./Acre)

1. Annual Rye 18

2. Hard Fescue 6

3. Orchard Grass 6 Total 30

Seed mixture having a different analysis may be used if approved in advance by the CO.

625.08 Mulching.

(b) Hydraulic method.

Delete the first sentence and add the following.

Apply mulch in a separate application from the seed or in a single application with the seed using hydraulic-type equipment according to Subsection 625.07(b).

625.09 Protecting and Caring for Seeded Areas.

Delete the first sentence and add the following.

Protect and care for seeded areas until final acceptance.

625.11 Measurement

Delete the second paragraph and add the following.

Measure seeding, fertilizing, and mulching by lump sum.

Typical Drawings

Drainage Dips

Drainage Outlets

Revetment Mat, Articulating Concrete Block, Dimensions are not to scale, for reference only, see Description of Work for dimensions and closed or open cell applications