4. Specifications.pdf

805 MOBILIZATION / EQUIPMENT MOVING (10/16)

1. DESCRIPTION

This Section consists of one or more mobilizations of personnel, equipment, supplies, and incidentals to the project site, or sites listed in the Schedule of Items.

2. REQUIREMENT

a. Make equipment available for inspection before it is used on National Forest System lands.

b. Moving is complete, when the contractor has moved from the present work site to the ordered work site and returned to the previous location.

c. Equipment will be clean and weed free before it arrives on National Forest System lands.

3. LOCATION OF WORK

As specified on roads listed on the Road Listing, Shown on the Plans, or as ordered by the

Contracting Officer.

4. MEASUREMENT

Measurement under this Section will be made by the total number of units for each item listed in the Schedule of Items completed and accepted.

Mile: work activity will be measured along the shortest feasible route to the nearest one (1) mile, from the starting location of the move, to the ordered work site.

5. PAYMENT

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

Section 805 pay items listed in the schedule of items. Mobilization is complete when all equipment, personnel, and materials are moved to the project site and work has been started. Payment will be full compensation for the work prescribed in this Section.

Mobilization is incidental unless ordered for a specific project at a specific time.

b. Payment will be made under:

Pay Item Description Pay Unit

805 (1) Mobilization Mile

811 BLADING (10/16)

This work consists of

a. Surface blading native or aggregate roadbed to a condition to facilitate traffic and provide proper drainage.

b. Smooth blading to remove loose surfacing materials from the wheel paths and store the removed materials in a recoverable windrow.

Blading includes shaping the crown or slope of traveled way, berms, and drainage dips in accordance with this specification. Compaction is required when ordered by the

Contracting Officer.

2. MAINTENANCE REQUIREMENTS

a. Timing

Surface blading shall be performed during the contract period as ordered by the

Government.

b. General

1) The existing traveled way and shoulders, including turnouts unless otherwise ordered, shall be bladed and shaped to produce a surface which is uniform, consistent to grade, and crowned or cross-sloped as indicated by the character of the existing surface unless otherwise shown in the Road Listing, to at least one half inch (1/2") per foot of width, but not more than three quarter inch (3/4") per foot of width. Surfacing materials shall be thoroughly loosened to no less than 2 inch depth or the depth of potholes or corrugations. Scarification to facilitate cutting to the full depth of potholes or corrugations may be elected by the Contractor but will be considered incidental to blading. Scarification shall not go deep enough to cause contamination of the surfacing.

2) When Section 891 is included in the Road Listing, the Contractor shall apply water during blading when sufficient moisture is not present to prevent segregation. Water supply, hauling, and application shall be in accordance with Section 891 and shall be incidental to blading unless Pay Items for Section 891 are included in the Schedule of Items.

3) Existing native, rock or aggregate surfaced drainage dips shall be shaped incidental to blading to divert surface runoff to existing outlet devices, ditches and discharge locations.

4) The Contractor shall establish a blading pattern which provides a uniform driving surface, retains the surfacing on the roadbed and provides a thorough mixing of the materials within the completed surface width. Upon final blading, no disturbed rock shall protrude more than two (2) inches above the adjacent surface unless otherwise provided in the contract. Material not meeting this dimension shall be removed and placed outside the roadbed so as not to obstruct drainage ways or structures. This material may be scattered off the roadbed if there is free drainage.

5) Watering will not be required for smooth blading. Smooth blading shall be accomplished without distorting the existing cross-slope or crown of the traveled way. Loose surfacing materials shall be moved and stored on the high side of super-elevated curves and sections with uniform inslope or outslope. In crowned sections, the material shall be stored on either or both sides as elected. Stored materials shall be windrowed and shall be placed to provide not less than eleven (11) feet of smoothed traveled way on one- lane segments or twenty (20) feet of smoothed traveled way on two-lane or sections with turnouts. Windrows which may collect water on the road shall have holes cut through for drainage at least every 500 feet.

c. Routine Blading

1) Upon completion of blading, the surfaces shall conform to the dimensions shown in the Special Project Specifications 811-3.

2) Roadbed width in excess of the dimensions shown shall be shaped only as needed to provide drainage away from the traveled way. Established grasses and other vegetation shall not be removed from the excess width except as incidental to providing drainage or unless otherwise provided in the contract.

d. Compaction

Roads requiring compaction will be included in the Road Listing. Unless otherwise specified, all traveled ways requiring compaction shall be compacted by breaking track while operating equipment on the traveled way.

e. Intrusions

Where the minimum width shown in the Special Project Specifications is not available, the Contractor will construct berms where ordered and marked on the ground. Material to provide berms will come from sources designated in the Special Project

Specifications.

f. Undercutting

Roadway back slope shall not be undercut.

g. Intersections

1) At intersections, the roadbeds of side roads which are not closed or restricted from vehicular use shall be bladed to assure smooth transitions.

2) Field evidence of closure or restrictions shall be considered to be signing, cross ditching in the road surface (traveled way), earth berms or other devices placed to discourage or eliminate use by passenger cars, also roads listed for work under

Sections 835 or 838 shall be considered restricted.

3) Side roads listed for work under this Section shall be considered as not restricted.

h. Cleaning of Structures

Materials resulting from work under this Section shall not be allowed to remain on or in structures, such as bridges, culverts, cattleguards, or drainage dips.

i. Berms

Existing berms shall be maintained to the condition of adjacent segments when ordered by the Government.

3. MEASUREMENT

a. Measurement under this Section will be made by the total number of units for each item listed in the Schedule of Items completed and accepted.

b. Measurement for blading will be single-lane mile measured along the centerline of the roadway (see quantity measurement terms). Two-lane roads will be measured as two

(2) single-lane miles. Measurement will be measured to the nearest one-tenth (0.1) mile.

c. Each intersection bladed under 2.g. will be equivalent to one-tenth (0.1) single-lane mile; however, when the intersecting side road is scheduled for subsequent blading under this Section, no measurement will be made.

d. Berm maintained or established will be measured by linear foot.

e. No measurement will be made under this Section for compaction method specified in

2.d. For roads needing compaction with special compaction equipment (ie. pneumatic or steel roller), use pay items in Section 807 for additional compaction efforts.

4. PAYMENT

a. The quantities measured and accepted will be paid for at the contract unit price shown in the Schedule of Items.

b. Payment will be made under:

Pay Item Description Pay Unit

811 (1) Blading Surfaced Roads Single-Lane Mile

811 (2) Blading Native and Pit Run Roads Single-Lane Mile

811 (3) Smooth Blading Single-Lane Mile

811 (4) Berm Maintained Linear Foot

811 (5) Establishing Berms Linear Foot

832 REMOVE AND END HAUL MATERIALS (10/16)

Work consists of ordered loading, hauling, and placing of slide, slough, or excess materials such as rock, soil, vegetation, and other materials to designated disposal sites.

2. MAINTENANCE REQUIREMENTS

a. Excess materials generated by work under other Sections of this contract may be ordered for removal, haul, and disposal under this Section. Removal and disposal under all Sections will be ordered without haul when a distance of less than two hundred (200) feet is involved.

b. Slide and slough materials to be removed shall include those in the area extending approximately six (6) feet vertically above the road surface and that area extending not more than four (4) feet down slope from the roadbed. Material shall be disposed of at designated sites as shown on Drawings or identified in Special Project Specifications.

c. The slope which generated the slide material shall be reshaped as nearly as practical to its original condition by equipment operating from road surface. Reshaping of roadside ditches in slide area shall be in accordance with Section 831.

d. When ordered by the Government, slumps shall be filled by compacting selected materials into roadway depressions. Compaction shall be by Method (2).

e. All materials removed and placed in disposal sites shall be placed by one or more of the following methods as shown in Road Listing, Special Project Specifications, or

Drawing.

1) Method 1: Side Casting and End Dumping. Material may be placed by side casting and end dumping. Where materials include large rocks, a solid fill shall be provided by working smaller pieces and fines into voids. The finished surfaces shall be shaped to drain.

2) Method 2: Layer Placement - Surfaces on which materials are to be placed shall be stepped or roughened prior to placing any material. Materials shall be placed in approximately horizontal layers no more than twelve (12) inches thick. Each layer shall be compacted by operating hauling and spreading equipment over the full width of each layer.

3. MEASUREMENT

a. Removal will be measured by the cubic yard, determined by equipment measure, for materials acceptably removed.

b. Except as provided in 2(a) of this Section, haul of materials will be measured by the cubic yard mile, determined by the number of miles hauled times the cubic yards.

Mileage will be measured one way rounded to the nearest 1/10 mile.

c. Placement of materials in disposal sites will be measured by the cubic yard in the hauling vehicle for materials acceptably placed.

4. PAYMENT

a. The accepted quantity will be paid for at the contract unit price shown in the Schedule of

Items.

b. Payment will be made under:

Pay Item Description Pay Unit

832 (1) Remove Cubic Yard

832 (2) Haul Yard Mile

832 (3) Disposal, Placement Method 1 Cubic Yard

832 (4) Disposal, Placement Method 2 Cubic Yard

834 DRAINAGE STRUCTURE MAINTENANCE (10/16)

This work consists of cleaning and reconditioning culverts and other drainage structures.

2. MAINTENANCE REQUIREMENTS

a. Drainage structures, inlet structures, culverts, catch basins, and outlet channels shall be cleaned when required by the Government. Catch basins shall be cleaned by removing the material within the area shown on Drawing 834-1.

b. The transition from the ditch line to the catch basin shall be cleaned a distance of ten (10) feet. Outlet channels and lead-off ditches shall be cleaned a distance of six (6) feet.

Debris and vegetation shall be removed and placed so as to not enter the channel or ditch or obstruct traffic. Debris and vegetation ordered to be hauled shall be hauled to a designated disposal area in accordance with Section 832.

c. Hydraulic flushing of drainage structures is not allowed unless provided for in Special

Project Specifications.

d. Cleaning and reconditioning is limited to the first four (4) feet of inlet and outlet determined along the top of the structure. Damaged culverts shall be reported to the Government in writing upon completion of work on each road in the Road Listing. Any damaged by the

Contractor shall be repaired.

3. MEASUREMENT

a. Measurement will be the number of units of each culvert type including cleaning of inlet and outlet ditches or channels and catch basins completed and accepted.

b. Reconditioning and cleaning of drainage structures will be incidental to cleaning.

c. Ordered haul of materials will be measured under Section 832.

4. PAYMENT

a. Quantities as determined above will be paid at the contract unit price.

b. Payment will be made under:

Pay Item Description Pay Unit

834 (1) Clean Culverts 24" Diameter and Under Each

834 (2) Clean Culverts 24" through 48" Diameter Each

834 (3) Clean Culverts Over 48" Diameter Each

839 RESTORE DRAINAGE (10/16)

This work consists of log, limb and debris removal; blading and shaping of the roadbed to restore drainage function. This work includes shoulders, ditches, drainage dips, leadoff ditches, turnouts, and intersections; cleaning drainage facilities; removing washes and sloughs that inhibit drainage.

2. MAINTENANCE REQUIREMENTS

a. General

The existing traveled way and shoulders, including turnouts unless otherwise ordered, shall be bladed and shaped to produce a surface which is uniform, consistent to grade, and crowned or cross-sloped as indicated by the character of the existing surface unless otherwise Marked on the Ground, to at least one half inch (1/2") per foot of width, but not more than three quarter inch (3/4") per foot of width. Surfacing materials shall be thoroughly loosened to a depth of no less than 2 inches or the depth of potholes or corrugations.

Corrugations are washboarding and similar defects.

Scarification to facilitate cutting to the full depth of potholes or corrugations may be elected by the Contractor but will be considered incidental to blading. Scarification shall not go deep enough to cause contamination of the surfacing.

When Section 891 is included in the Road Listing, the Contractor shall apply water during blading when sufficient moisture is not present to prevent segregation. Water supply, hauling, and application shall be in accordance with Section 891 and shall be incidental to blading unless Pay Items for Section 891 are included in the Schedule of Items.

Existing native, rock or aggregate surfaced drainage dips shall be cleaned and shaped incidental to blading to divert surface runoff to existing outlet devices, ditches and discharge locations.

The Contractor shall establish a blading pattern which provides a uniform driving surface, retains the surfacing on the roadbed and provides a thorough mixing of the materials within the completed surface width.

b. Drainage Facilities

Cleaning existing drainage facilities includes roadside drainage ditches, drainage dips, inlet and outlet ditches, overside drains and flumes, inverts and interiors of culverts, culvert catch basins, drop inlets, trash racks, and sediment basins. Slash and debris shall be disposed of as in 839e. Sediment basin clean out shall be disposed for the unit price as shown in the

Schedule of Items for Section 832.

Drainage structures not included under this specification are bridges, cattle guards, and culverts over 72 inches in diameter.

c. Ditches, Lead Off and Roadside

Wood, rock, trees, brush and other debris shall be removed from ditches to provide unobstructed flow of water. Slash and debris (woody or organic) shall be scattered in such a manner as not to impede the flow of water. The backslope of ditches shall not be undercut by cleaning operations. Existing ditch blocks shall be restored, reshaped, and compacted as needed for effective drainage through culverts. Catch basins shall be cleaned of material above the invert of the culvert.

d. Dips (Also called intercepting dips or rolling dips)

Existing drainage dips shall be cleaned and the outslope gradient sufficiently restored to remove surface water from roadbed, conducting the water through drainage facilities.

e. Culverts

Inlet and outlet ends, as well as four feet inside each end, of existing culvert, shall be cleaned to provide unobstructed flow of water. Natural drain culvert channels shall be cleared of all down trees, limbs, stumps, brush, rocks and other debris, that restricts the flow of water, 6 feet in width for 15 linear feet at each end. Slash and debris (woody or organic) shall be scattered in such a manner as not to impede the flow of water. The channel shall be shaped to natural streambed with constant grade at inlet and outlet ends.

f. Overside Drains and Flumes

Overside drains shall be cleaned of debris to provide an unobstructed flow of water. Debris

(woody or organic) shall be scattered in such a manner as not to impede the flow of water.

g. Designed Earth Berms

Berm breaches of less than 5 cubic yards shall be filled, shaped, and compacted by wheel rolling. Fill material shall be located within 500 feet of breach or by ripping to the depth and width necessary to obliterate such defects; providing a smooth transition to adjacent satisfactory roadbed. Filling with loose material will not be acceptable.

h. Settlements

Settlements 12 inches or less in depth shall be scarified and then repaired by cutting from the roadbed on each end of the settled area, filling and wheel rolling the material into the settled area providing a smooth transition to adjacent satisfactory roadbed.

i. Washouts

Washouts in roadway of less than five cubic yards shall be filled and compacted by wheel rolling. Fill material shall be located within 500 feet of washout or as directed by the

Contracting Officer.

3. METHOD OF MEASUREMENT

Measurement for maintenance will be “by the mile”, measured by slope distance along the centerline of the roadway. Measurement will be to the nearest one-tenth mile. No separate measurement will be made for any of the elements of work described in the foregoing

4. PAYMENT

a. Payment will be made for all units inspected and accepted at the unit price shown on the schedule of items.

b. Payments will be made under:

Pay Item Description Pay Unit

839 (1) Restore Drainage Function, Without Water Mile

839(2) Restore Drainage Function, With Water Mile

R3"

1.25"

1.25"

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1"

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1.25"

1.25"

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2'-3.8"

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840 CORRUGATED METAL SPILLWAYS AND FLUME (10/16)

This work consists of cleaning, reconditioning, and re-installing, or the replacement of existing corrugated metal spillway inlet assemblies, flume, and other appurtenances associated with the installation requirements.

2. MATERIALS

a. Materials shall be furnished by the contractor, unless otherwise indicated. Spillway inlet assemblies, flume, and connectors shall be of the type and thickness specified by the Task

Order or shown in supplemental drawings, and shall be constructed of galvanized corrugated sheet metal meeting the requirements indicated on the drawings.

b. Anchors shall be as shown in the Task Order.

3. MAINTENANCE REQUIREMENTS

a. Re-installation of existing overside drains:

1) Re-install inlet and starter section to the grade and flow line established by the drainage dip.

2) Adjacent earth berms shall be filled shaped, and compacted to provide a continuous drainage channel to the inlet structure.

3) Structures not approved for reuse shall be removed from Government land at the

Contractor’s expense.

4) Prior to re-installing flume, ensure that voids have been filled and the embankment compacted to provide a smooth, continuous grade from the inlet to the outlet of drainage structure.

b. Replacement of existing overside drains:

1) Remove existing structure and backfill and compact any wash-outs beneath the inlet and starter.

2) Re-establish the embankment for flume replacement by backfilling wash-outs and voids, and compacting to provide a smooth, continuous grade from the inlet to the outlet of the drainage structure.

3) Install new drainage structure as specified by the Task Order.

4) Re-establish earth berm. Shape and compact to provide a continuous drainage channel to the inlet of the drainage structure.

4. MEASUREMENT

a. Measurement of inlet and starter assemblies will be for each unit specified and installed as a whole. Costs included are for materials, labor for fabrication and installation, and delivery.

b. Measurement will be made for each lineal foot of flume specified and installed. Measurement for anchors shall be considered incidental to flume installation.

c. Cost for disposal of removed inlets, starters, flumes, and appurtenances shall be considered incidental to the work in this specification.

5. PAYMENT

a. Accepted quantities will be paid for at the contract unit prices shown in the Schedule of

Items.

b. Payment will be made under:

Pay Item Description Pay Unit

840 (1) Clean Inlet and Starter Each

840 (2) Reinstall Inlet and Starter Each

840 (3) Replace Inlet and Starter ___ (12, 18, 24, or 36) Inches

Each

840 (4) Clean Flume Each

840 (5) Reinstall Flume Linear Foot

840 (6) Replace Flume, ____ (12, 18, 24, or 36) Inches Linear Foot

840 (7) Replace Flume, ___” by ___ ft. Long Each

837-1_Drainage Dip

840-Corrugated Metal Spillway