ATT_1_-_SPECIFICATIONS.pdf

Unauthorized Routes 2016

Section 202

Section 202 - Removal of Structures & Obstructions

Description

202.01 Work. Salvage, remove, and/or dispose of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions as SHOWN ON THE DRAWINGS.

Salvage designated materials and backfill the resulting trenches, holes, pits, or as SHOWN ON

THE DRAWINGS.

Construction

202.02 Salvaging Material. Use reasonable care to salvage all material designated to be salvaged. Salvage in readily transportable sections or pieces. Replace or repair all members, pins, nuts, plates, and related hardware damaged, lost, or destroyed during the salvage operations.

Wire all loose parts to adjacent members or pack them in sturdy boxes with the contents clearly marked.

Carefully remove culvert, taking precautions to avoid damage. Store culverts to be relaid, when necessary, to prevent loss or damage before relaying. Replace without additional compensation all sections lost from storage or damaged by use of improper methods.

Matchmark members of salvaged structures. Furnish the CO with one set of drawings identifying the members and their respective matchmarks.

Stockpile salvaged material in a designated area.

202.03 Removing Material. Saw cut sidewalks, curbs, pavements, and structures when partial removal is required.

Raze and remove all buildings, foundations, pavements, sidewalks, curbs, fences, structures, and other obstructions that interfere with the work or are not designated to remain.

Existing culverts may be left in an embankment, provided that no portion of the culvert is within 2 feet of the subgrade, the embankment slope, or a new culvert or structure. Crush culvert ends.

Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation.

Remove structures and obstructions outside the roadbed to 12 inches below finished ground or to the natural stream bottom.

Prior to removal, place rock and soil material located on the bridge deck, or structure so that it does not enter a stream.

Remove the substructures of existing structures down to the natural stream bottom, and remove the parts outside of a stream down to at least 12 inches below natural ground surface or finished groundline, whichever is lower. Remove portions of existing structures that lie wholly or in part within the limits for a new structure to accommodate construction of the proposed structure.

Except in excavation areas, fill cavities left by structure removal with material to the level of the finished ground, and compact. Place and compact the type of backfill material that is SHOWN ON THE DRAWINGS, designated in the SPECIAL PROJECT SPECIFICATIONS, or approved by the CO.

202.04 Disposing of Material or Structures Not Designated for Salvage.

Dispose of material and structures as SHOWN ON THE DRAWINGS or designated in the SPECIAL PROJECT SPECIFICATIONS, using one or more of the following methods:

(a) Removal From Project. Make necessary arrangements with property owners, and haul debris to suitable disposal locations as approved by the CO. Furnish a signed copy of the disposal agreement. Hazardous materials must be properly disposed of.

(b) Burning. Burn debris using high-intensity burning processes that produce few emissions.

Examples include incinerating, high stacking, or pit and ditch burning. Provide a watchperson during burning operations.

When burning is complete, extinguish the fire so no smoldering debris remains. Dispose of unburned material in accordance with Subsection 202.04(c).

(c) Burying. Bury debris in trenches or pits in approved areas within the right-of-way. Do not bury debris inside the roadway prism limits, beneath drainage ditches, or in any riparian areas.

Place debris with earth material in alternating layers consisting of 3 feet of debris covered by 2 feet of earth. Distribute stumps, logs, and other large pieces to form a compact mass and minimize air voids. Fill all voids. Cover the top layer of buried debris with at least 12 inches of compacted earth. Grade and shape the area.

Measurement

202.05 Method. Use the method of measurement that is DESIGNATED IN THE SCHEDULE

OF ITEMS.

Payment

202.06 Basis. The accepted quantities will be paid for at the contract unit price for each PAY

ITEM DESIGNATED IN THE SCHEDULE OF ITEMS.

Payment will be made under:

Pay Item Pay Unit

202(01) Removal of structures and obstructions .................................Lump Sum

202(02) Removal of _______ .............................................................Each

202(03) Removal of _______ .............................................................Linear Foot

202(04) Removal of _______ .............................................................Square Yard

202(05) Removal of _______ .............................................................Lump Sum

Section 602

Section 602 - Minor Concrete Structures

Description

602.01 Work. Construct reinforced or unreinforced minor concrete structures.

Materials

602.02 Requirements. Furnish materials that meet the requirements specified in the following subsections:

Air-Entraining Admixtures .........................................................711.02 Cement ........................................................................................701.01 Chemical Admixtures .................................................................711.03 Coarse Aggregate for Portland Cement Concrete .......................703.02 Curing Material ...........................................................................711.01 Fine Aggregate for Portland Cement Concrete ...........................703.01 Fly Ash ........................................................................................725.04 High-Strength Nonshrink Grout .................................................701.02 Latex Modifier ............................................................................711.04 Reinforcing Steel ........................................................................709.01 Water ...........................................................................................725.01

602.03 Concrete Composition. Use the concrete composition method DESIGNATED IN THE

SCHEDULE OF ITEMS.

(a) Method A. Furnish to the CO a mix design showing the proposed weights of aggregate, water, and cement per cubic yard of concrete a minimum of 7 days prior to beginning placement.

Proportion the cement, aggregate, and water to obtain concrete with good workability. Ensure that slump is 4 inches or less, as determined by AASHTO T 119. Ensure that air-entrainment is 6 ± 1 percent, as determined by AASHTO T 152 or T 196.

Ensure that the concrete develops a 28-day minimum compressive strength of 3,000 psi, unless otherwise SHOWN ON THE DRAWINGS. Furnish concrete for specimens. Strength will be determined by test cylinders made and cured in accordance with AASHTO T 23 and tested in accordance with AASHTO T 22.

Failure of any test cylinder to meet the required strength, for any structural element tested, will be considered evidence of noncompliance with the strength requirement of this specification.

(b) Method B. Submit for approval the following information a minimum of 7 days prior to beginning placement:

(1) Type, grading, and sources of aggregate.

(2) Type and source of cement, blended cement, or fly ash.

(3) Saturated surface dry weights of the fine and coarse aggregate in pounds per cubic yard of concrete.

(4) Weight of mixing water in pounds per cubic yard of concrete.

(5) Weight of cement in pounds per cubic yard of concrete.

(6) Admixture type, quantity, and certification by manufacturer.

(7) Air content.

(8) Slump.

(9) 28-day compressive strength.

Ensure that the concrete contains not less than 611 pounds per cubic yard. Ensure that slump is 4 inches or less, as determined by AASHTO T 119.

When a commercial supplier is used, furnish a certification with each truckload of concrete certifying that the material and mix proportions used are in conformance with the approved mixture.

(c) Method C. Make the concrete using a dry, preproportioned, blended, and bagged mix meeting the requirements of ASTM C 387 and mixed at the jobsite in accordance with the manufacturer’s recommendations.

(d) Fly Ash- or Pozzolan-Modified Concrete. Fly ash may be substituted for cement at the rate of 1.2 pounds of fly ash per 1.0 pound of Portland cement. After substitution, reduce the design aggregate volumes by an amount equal to the net increase in volume of the combined cement and fly ash. Replace no less than 10 percent and no more than 20 percent of the weight of Portland cement required with fly ash at the above rate. For purposes of controlling the maximum water/cement ratio of 0.49, make the water/cement ratio for fly-ash-modified concrete the ratio of the weight of water to the combined weights of Portland cement and 60 percent of the weight of the fly ash.

Extend the standard 28-day curing period for compressive-strength tests for fly-ash modified concrete by 1 day (rounded to the nearest whole day) for each 1.5 percent of Portland cement replaced with fly ash at the selected rate. (Example: If the maximum of 20 percent cement is replaced, the curing period for cylinders is 41 days.)

Construction

602.04 Forms. Design and construct forms so they can be removed without damaging the concrete. Make them free of bulge and warp, and constructed so that the finished concrete has the form and dimensions SHOWN ON THE DRAWINGS and is true to line and grade. Concrete may be placed without forms where SHOWN ON THE DRAWINGS.

Design forms for concrete that contains a retarding admixture, fly ash, or other pozzolan replacement for cement so that the lateral pressures exerted by the full anticipated height of fluidized concrete are contained, unless documented information in regard to initial set is provided by the manufacturer.

602.05 Placing Concrete. Place all reinforcing steel in position as SHOWN ON THE DRAWINGS, and ensure that it is securely held in place by approved supports during placing of concrete. Do not place concrete until the grading, forms, and steel reinforcements have been inspected and approved by the CO. Give the CO 24 hours written notice prior to placement of any concrete.

Ensure that reinforcing steel material and construction requirements are in accordance with Section 554.

Discharge all concrete prepared using methods A and B into the forms within the time limits shown in Table 602-1. These time limits are based on jobsite ambient air temperature, cement type, and admixture used. Begin counting time from when the cement is introduced into the aggregate. Discharge concrete prepared using method C into the forms within 1-1/2 hours after introducing water to the mixture. Do not retemper concrete. Cement must be added to the mixer at the jobsite when required in the SPECIAL PROJECT SPECIFICATIONS. Do not mix or place concrete when the daily minimum atmospheric temperature is, or is expected to be, less than 40 °F unless adequate provisions are made to protect the concrete.

Place concrete to avoid segregation. Use high-frequency internal vibrators for consolidating concrete in the forms. Operate vibrators to produce concrete free of voids, but do not hold them in one place long enough to result in segregation or formation of laitance on the surface.

Method C concrete may be rodded instead of internally vibrated as necessary to remove voids.

Do not use aluminum pipe, conduit, or troughs for transporting concrete. When concrete is pumped, take samples from the discharge stream at the point of placement.

602.06 Finishing. Perform finishing of concrete surfaces as follows:

(a) Formed Surfaces. Unless otherwise SHOWN ON THE DRAWINGS, remove all fins and irregular projections exceeding ¼ inch from the exposed surfaces. Fill holes produced by removing form ties with dry-pack mortar or other approved patching compounds.

(b) Unformed Surfaces. Strike off unformed surfaces with a straightedge, and finish them to a smooth uniform texture by floating and troweling. Prepare final finish of the surface as SHOWN

ON THE DRAWINGS.

Table 602-1. - Concrete discharge time limits.

Cement Type With and Without Admixtures

Time limit (hour) < 86 oFa ≥ 86 oFa

Type I, IA, II, or IIA 2.0 1.5 Type I, IA, II, or IIA with water reducing or retarding admixture 3.0 2.0

Type III 1.5 1.0 Type III with water reducing or retarding admixture 2.0 1.5

a. Ambient air temperature.

602.07 Curing Concrete. Beginning immediately after finishing, cure all concrete a minimum of 7 days or, if high-early-strength cement is used, a minimum of 3 days. For fly-ash-modified concrete placed in structures, the required moisture-controlled curing period shall be:

Percentage of Cement Replaced by Weight

Required Curing Period

10% 9 days 11–15% 10 days 16–20% 11 days

For cold weather concreting, maintain a controlled temperature for the required curing period.

The above requirement for an extended curing period may be waived if a compressive strength of 65 percent of the specified 28-day design strength is achieved in 6 days.

Cure by maintaining a minimum concrete temperature of 40 °F and keeping the concrete continuously moist. Keep moist by supplying additional moisture or preventing moisture loss.

Acceptable methods of supplying additional moisture are ponding or sprinkling, and covering with burlap cloth that is kept saturated. Surfaces SHOWN ON THE DRAWINGS may be covered with saturated sand or 6 inches of saturated hay or straw to retain moisture.

Acceptable methods of preventing moisture loss are applying liquid membrane forming compounds, or waterproof paper or polyethylene sheet materials. Apply liquid membrane forming compounds by spraying at the coverage rates and patterns recommended by the manufacturer. Ensure that sheet material has overlapped sealed joints and forms a complete waterproof cover over the entire concrete surface.

602.08 Backfilling. Backfill in accordance with Subsection 206A.10. Do not backfill concrete until it has completed the required curing period.

Measurement

602.09 Method. Use the method of measurement that is DESIGNATED IN THE SCHEDULE

OF ITEMS.

Payment

602.10 Basis. The accepted quantities will be paid for at the contract unit price for each PAY

ITEM DESIGNATED IN THE SCHEDULE OF ITEMS.

602(01) Concrete, method____ ...........................................................Cubic Yard

602(02) Concrete, method____ ...........................................................Lump Sum

Section 602-1 SPS

SPECIAL PROJECT SPECIFICATION

602-1 MINOR CONCRETE STRUCTURES

602.10 Basis.

Delete Pay Items shown in Specification Section 602 and insert the following:

No payment will be made for Materials under this item. Payment for these materials will be considered incidental to Section 607-2, 607-3, 633 and 862-2 described as SPS Unauthorized Route Barrier Installation, SPS Pipe Rail Barrier Gate, Signs and Gate Installation respectively.

Unauthorized Routes 2019

Section 607-2 SPS

SPECIAL PROJECT SPECIFICATIONS

607-2 OHV BARRIER INSTALLATION (11-03)

607-2.01

This work consists of furnishing and installing Barrier Assemblies. The contractor shall furnish all labor, equipment, and transportation necessary to perform the work in this specification.

607-2.02 Materials

1. The contractor shall furnish OHV Barrier Assemblies manufactured to conform to the drawings.

2. Materials shall conform to notes on the drawings.

3. The contractor shall construct concrete footings as shown on the drawings.

4. Contractor furnished concrete used for barrier installation shall meet the standard specification

Section 602 either Method B or Method C.

a. Method B: The contractor shall submit for approval the mix information. The concrete shall contain not less than 5.5 sacks of cement per cubic yard. Slump shall not be more than 4 inches.

b. Method C: The concrete shall be made using a dry, pre-proportioned, blended, and bagged mix meeting the requirements of ASTM C 387, and mixed at the job site in accordance with the manufacturer’s recommendation.

5. All other materials, labor, and incidentals necessary for Barrier installation shall be furnished by the contractor, and shall be included in the contract price.

607-2.03 Barrier Installation

1. Gate posts shall be erected plumb and in accordance with the details SHOWN ON THE

DRAWINGS.

2. Exact locations will be staked by the COR.

607-2.04 Measurement

The quantity to be measured will be the completed Barriers listed in the SCHEDULE OF ITEMS and accepted under this Section.

607-2.05

A. The accepted quantities will be paid at the contract unit price shown in the SCHEDULE OF ITEMS.

Unauthorized Routes 2019

Section 607-2 SPS

B. Payment will be made under:

607-2(1) Construct and Install Barrier Assembly LF (Steel Pipe)

607-2(2) Furnish and Install Barrier Posts, 4 feet long EA (Concrete posts)

Section 607-3 SPS

607-3 REMOVABLE BARRIER (12-15)

607-3.01

This work consists of fabricating, furnishing and installing Removable Steel Pipe Barrier Assemblies.

This work also consists of fabricating, furnishing and installing steel Pipe Horse Gates. The contractor shall furnish all labor, equipment, and transportation necessary to perform the work in this specification.

607-3.02

1. The contractor shall furnish Removable Barrier Assemblies fabricated to conform to the drawings.

2. Materials shall conform to notes on the drawings.

3. The contractor shall construct concrete footings as shown on the drawings.

4. Contractor furnished concrete used for barrier installation shall meet the standard specification

Section 602 either Method B or Method C.

a. Method B: The contractor shall submit for approval the mix information. The concrete shall contain not less than 5.5 sacks of cement per cubic yard. Slump shall not be more than 4 inches.

b. Method C: The concrete shall be made using a dry, pre-proportioned, blended, and bagged mix meeting the requirements of ASTM C 387, and mixed at the job site in accordance with the manufacturer’s recommendation.

5. All other materials, labor, and incidentals necessary for Removable Barrier installation shall be furnished by the contractor, and shall be included in the contract price.

607-3.03 Removable Steel Pipe Barrier Installation

1. Vertical barrier posts shall be erected plumb and installed in accordance with the details SHOWN

ON THE DRAWINGS.

607-3.04 Horse Gate Installation

1. All vertical pipe members shall be erected plumb and installed in accordance with the details

SHOWN ON THE DRAWINGS.

3. Reflective signs and stickers shall be furnished and installed by contractor.

607-3.05

Section 607-3 SPS

The quantity to be measured will be the completed number of Removable Steel Pipe Barrier Assemblies and Horse Gates listed in the SCHEDULE OF ITEMS and accepted under this Section.

607-3.06

A. The accepted quantities will be paid at the contract unit price shown in the SCHEDULE OF ITEMS.

607-3(1) Construct and install Removable Steel Pipe Fence Assembly EA

607-3(2) Construct and install Horse Gate EA

Section 633

Section 633. — PERMANENT TRAFFIC CONTROL

633.01 This work consists of constructing permanent traffic control signs, supports, delineators, and object markers, and removing and resetting permanent traffic control devices.

Sign panels are designated as plywood, aluminum, steel, plastic, or fiberglass reinforced plastic.

Sign retroreflective sheeting type is designated according to Subsection 718.01.

Posts are designated as wood, aluminum, galvanized steel, or corrosion resistant steel.

Material

633.02 Conform to the MUTCD and the following Section and Subsections:

Aluminum panels 718.05 Concrete 601 Delineator and object marker retroreflectors 718.12 Extruded aluminum panels 718.07 Fiberglass reinforced plastic panels 718.06(b) Hardware 718.10 Letters, numerals, arrows, symbols, and borders 718.11 Object marker and delineator posts 718.09 Plastic panels 718.06(a) Plywood panels 718.03 Retroreflective sheeting 718.01 Signposts 718.08 Steel panels 718.04

Construction Requirements

633.03 General. Furnish traffic control devices according to the MUTCD and Standard Highway Signs published by FHWA. Submit the sign list for approval before ordering.

633.04 Supports. Sign locations may be changed to fit field conditions as approved by the CO.

Determine sign support lengths at time of staking. Install supports plumb and according to the manufacturer's instructions. Make all supports within the clear zone crashworthy.

Drive posts with a suitable driving head or set posts in drilled or punched holes. Replace all damaged posts.

Construct concrete footings according to Section 601. Excavate and backfill according to Section 209.

633.05 Panels. Use type III, VII, VIII, or IX retroreflective sheeting. For permanent sign panels, use type L-1 letters, numerals, arrows, symbols, and borders. Cut panels to size and shape and drill or punch all holes. Make panels flat and free of buckles, warp, dents, cockles, burrs, and other defects.

Clean and degrease the face of metal panels using methods recommended by the retroreflective sheeting manufacturer. Abrade, clean, and degrease the face of the plywood panels using methods recommended by the retroreflective sheeting manufacturer. Treat the edges of the plywood panel with an approved edge sealant. Apply the retroreflective sheeting material to the panels. Package sign panels in protective material and transport them in a vertical position.

Mount sign panels with the legend horizontal. Where multiple panels adjoin, limit the gap between adjacent panels to 1/16 inch. To reduce specular glare (mirror reflection), turn the sign panel 3 degrees away from the road in the direction of travel.

Use oversized bolt heads and neoprene or nylon washers for fastening plastic sign panels.

Do not field drill holes in any part of the panel. Use antitheft fasteners where possible. Paint all bolt heads, screw heads, and washers that are exposed on the sign face. Match the color of the paint to the color of the background or message area at the point where the fitting is exposed.

If a sign message is not applicable, completely cover the face of the sign with an opaque material.

Maintain the covering in good condition until the message becomes applicable. Do not use adhesive tape on the sign face.

Repair or replace damaged parts including sheeting.

633.06 Delineators and Object Markers. Attach delineators and object markers to posts according to the manufacturer's recommendation.

633.07 Removing and Resetting Permanent Traffic Control Devices. Remove and store the existing signs, delineators, and object markers. Replace all devices, posts, and hardware damaged during removal, storage, and raising.

633.08 Acceptance. Material (including signs panels, retroreflective sheeting, supports, delineators, object markers, and hardware) for traffic control devices will be evaluated under Subsections 106.02 and 106.03.

Installation of traffic control devices will be evaluated under Subsections 106.02 and 106.04.

Excavation and backfill will be evaluated under Section 209.

Concrete will be evaluated under Section 601.

Measurement

633.09 Measure the Section 633 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure sign systems by the square foot of front face of sign panel as follows:

(a) When a sign system is measured by the each, measure each system as one sign regardless of the number of sign panels or posts.

(b) When a sign system is measured by the square foot, measure the nominal dimensions of all the sign panels.

(c) A sign system includes the supports.

Measure sign panel by the square foot of front face.

Measure each sign panel in a multiple configuration.

Measure removing and resetting permanent traffic control devices after they are reset. Measure based on the number of devices reset in their final position as described in (a) above.

Payment

633.10 The accepted quantities will be paid at the contract price per unit of measurement for the Section 633 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

Route Decommissioning 2016

Section 836-8 SPS

SPECIAL PROJECT SPECIFICATION

836-8 Route Decommissioning

836-8.01 Description This work consists of performing Route Decommissioning through the methods of Chunking and Ripping within the former unauthorized travelled way, re-contouring/grading and installation of grade control required where specified at certain sites. This work also consists of Slashing whereby brush is spread over disturbed areas as described below. Work includes all labor and equipment and transportation necessary to perform the work in this specification.

836-8.02 Chunking (a.k.a pocking or gouging ) is a method used to intercept and trap sediment on a micro-scale. Chunking also collects moisture, which improves vegetation establishment and consequently prevents erosion. This method is highly recommended for moderate to steep slopes. But it is also useful for flat or gently sloping areas with erosive soils and arid climates. Chunking is most practical for use on small disturbed areas of fewer than fifty acres or for critical portions of large disturbances, such as highly erosive soils and areas adjacent to streams. When soils are shallow and bedrock is prominent, it may be necessary to add water bars and/or lead off ditches.

Chunk when specified, typically where grade is greater than 5%. Chunk first 100’ where route intersects with road (barrier installation) regardless grade.

Basic Design and Construction

1. Use a small excavator or backhoe to create micro basins.

2. Dig a bucket load of soil to depth of 18-24 inches.

3. Drop bucket load 2-3 feet above the soil.

4. Repeat this process in a random and overlapping pattern throughout the site, making it impossible for water to flow down slope.

5. Finished roughened soil should be difficult to walk over.

6. Additional description may be found in Restoration of Forests, Grasslands, and Wetlands

Damaged by Off-Highway Vehicles, available from the U.S. Government Printing Office.

836-8.03 Ripping is a method used to create intercepting ditches on a compacted surface along a contour line such that water will not readily travel along the ditch.

1. Shank Type Rippers

a. This work shall consist of ripping an existing roadbed with a shank type ripper.

b. The distance between the ripper shanks shall not exceed 36 inches. Rippers shall have a minimum of two shanks.

c. The minimum ripping depth shall be 20 inches. The Government may agree to a lesser depth when excessive rock is encountered.

d. Equipment shall not be operated on ripped areas.

2. Wing Rippers

a. This work shall consist of subsoiling an existing roadbed by ripping with a winged ripper.

b. The distance between ripper shanks shall not exceed 36 inches. Each shank shall be equipped with a shoe and wings which have a total width of at least 18 inches.

The design of the shank and wing will be such that the treated soils are slightly lifted and well fractured rather than plowed, mixed or displaced.

c. Ripping shall be accomplished to a minimum depth of 20 inches. The Government may agree to a lesser depth when excessive rock is encountered.

d. Equipment shall not be operated on ripped areas.

3. WATERBARS: Waterbar work will be included under Ripping and Chunking AS SHOWN IN THE SCHEDULE OF ITEMS. Waterbars should be installed at angle of at least 45 degrees, with an increased angle as the grade approaches steeper grades – up to 60 degrees angle to the slope.

Waterbars should extend into undisturbed native material. Approximate waterbar spacing should be as follows:

Slope Spacing 5-15% every 75’

15-30% every 50’ over 30% every 35’.

836-8.04 Outsloping/Recontouring: work is site specific

1. Designated segments of routes or areas shall be outsloped by pulling the fill shoulder/cut slope towards the cut bank/erosion. Excavated material shall be spread over the route forming a minimum grade/slope equal to the existing road grade and cross slope. The Government may agree to a lesser outslope percent if soil conditions warrant.

2. Any existing ditches at the toe of the cut shall be filled with the material excavated during outsloping.

837-8.05 Slashing

1. This work shall consist of placing woody material and on-site native rocks over the disturbed route to discourage vehicle or other traffic.

2. Woody material shall be dead timber and slash removed from an area within twenty five (25) feet of the road shoulders in the vicinity of the areas where it is to be placed.

3. Material shall be placed randomly over the routes to give a similar appearance of the surrounding area and may include rocks and other material.

4. Slash cover target is 50% with rocks considered cover and availability of material on both sides of route.

836-8.06 Measurement

The quantity to be measured will be the completed number of miles of Route Decommissioning based upon an average ten foot wide swaths listed in the SCHEDULE OF ITEMS measured and accepted under this section.

836-8.05 Payment

Payment will be made for the Actual Quantity of accepted quantities at the contract unit price shown in the SCHEDULE OF ITEMS.

Pay Item Description Unit 836-8(1) Route Decommissioning (RIPPING) MILE 836-8(2) Route Decommissioning (SLASHING) MILE 836-8(3) Route Decommissioning (CHUNKING) MILE 836-8(4) Route Decommissioning (Recontouring) MILE

837 DRAINAGE DIP MAINTENANCE (10/16)

1. DESCRIPTION

This work consists of separately ordered maintenance of existing drainage dips and special outlet structures on all types of roads. Included in this are rolling dips on native, aggregate, and paved roads.

2. MATERIALS

Materials used in maintenance shall conform to the requirements of the applicable Sections for the materials within the structure.

3. MAINTENANCE REQUIREMENTS

a. Special outlet structures such as aprons, culverts, and flumes shall be removed if necessary prior to maintaining the drainage dip, or the finished dip shall be oriented to the structure for alignment and gradient.

b. Hand work may be necessary to obtain a smooth surface and uniform cross section. Any special outlet structure removed shall be reinstalled to the flow line grade established by the completed drainage dip. The first six (6) feet of any lead-off ditch or channel shall be cleaned incidental to this Section.

c. Native material drainage dips shall be shaped to reasonably conform with the lines, grades, and cross sections shown in Drawing 837-1 or staked on the ground. Removed materials shall be distributed uniformly over the downgrade road surface adjacent to the dip. Rocks shall not project more than two (2) inches above the final surface.

d. Aggregate or rock surfaced drainage dips shall be cleaned. When the Government determines the drainage dip requires shaping to conform to Drawing 837-1, existing surfacing materials shall be conserved for reuse upon completion of shaping. Conserved surfacing shall be placed and compacted with equipment prior to reinstalling any special outlet structures. Watering when required, will be in accordance with Section 891. Additional surfacing, if required, will be ordered under Section 813.

e. Bituminous surfaced drainage dips shall be cleaned.

4. MEASUREMENT

Measurement of drainage dips maintained will be the number of units of each type completed and accepted.

5. PAYMENT

No separate payment, this work is incidental to 839 Restore Drainage – Strom Proofing

839 RESTORE DRAINAGE (10/16)

1. DESCRIPTION

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

Pay Unit

839 (1) Restore Drainage Function, Without Water Mile

839(2) Restore Drainage Function, With Water Mile

Section 862-2 SPS

862-2 GATE INSTALLATION

862-2.01

This work consists of furnishing and installing gates and appurtenances. The contractor shall furnish all labor, equipment, and transportation necessary to perform the work in this specification.

862-2.02

1. The contractor shall furnish gates, gate posts and hinges, lock open posts and appurtenances manufactured to conform with the drawings.

2. Materials shall conform to notes on the drawings.

3. The contractor shall furnish and install barricade marker signs (B-M-L-R and B-M-R-

R) and object marker signs (OM-2-B) conforming to the drawings and MUTCD specifications.

4. The contractor shall construct concrete footings as shown on the drawings.

5. Contractor furnished concrete used for gate installation shall meet the standard specification Section 602 either Method B or Method C.

a. Method B: The contractor shall submit for approval the mix information. The concrete shall contain not less than 5.5 sacks of cement per cubic yard. Slump shall not be more than 4 inches.

b. Method C: The concrete shall be made using a dry, pre-proportioned, blended, and bagged mix meeting the requirements of ASTM C 387, and mixed at the job site in accordance with the manufacturer’s recommendation.

6. All other materials, labor, and incidentals necessary for sign installation shall be furnished by the contractor, and shall be included in the contract price.

862-2.03 Gate Installation

Gate posts shall be erected plumb and in accordance with the details SHOWN ON THE DRAWINGS. The gate and lock mechanisms shall operate freely. Contractor is to furnish all reflective signs shown on drawings and securely fasten the sign panels to the posts as SHOWN ON THE DRAWINGS.

862-2.04

The quantity to be measured will be the completed number of gates, fully installed and functioning listed in the SCHEDULE OF ITEMS and accepted under this Section.

Section 862-2 SPS

862-2.05

A. The accepted quantities will be paid at the contract unit price shown in the

SCHEDULE OF ITEMS.

862-2(1) Construct and install gate and appurtenances Each

Section 881

881 MOBILIZATION (2/94)

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. MEASUREMENT

When the contract establishes separate work periods within the contract time any additional mobilization included as a Bid Item will be retained until the actual work period.

3. PAYMENT

a. Progress payments will be made on the basis of the Bid Items contained in the Schedule of Items as follows:

1. When five (5) percent of the estimated contract amount in the work period is earned, fifty (50) percent of the amount of mobilization will be paid.

2. When twenty-five (25) percent of the estimated contract amount in the work period is earned, one hundred (100) percent of the amount for mobilization will be paid.

3. The total sum of all payments under this Section shall not exceed 10% of the total contract amount.

4. The contract amount for mobilization shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals involved in mobilization.

b. Payment will be made under:

Pay Item Description Pay Unit

881(1) Mobilization Each

Section 883

SECTION 883 CLEANING OF EQUIPMENT (3/10)

This work consists of removing all soil and other foreign matter from equipment upon moving into and out of work areas to prevent the spread of noxious weeds.

2. REQUIREMENTS

A. All equipment shall be clean when mobilized onto the Forest or moved from area to another.

B. Cleaning shall consist of the removal of all soil from equipment by steam cleaning or the use of high pressure cleaning equipment. Areas for cleaning of equipment will be designated by the Government.

C. Cleaning will be inspected and accepted by the Government prior to the equipment moving into and leaving the area.

3. MEASUREMENT AND PAYMENT

No separate measurement or payment will be made for meeting requirements of this Section. All work and materials shall be incidental to paid work in this contract.