Standard TS Road Maintenance Specs July 2012.pdf

Eldorado National Forest

Standard Timber Sale Road Maintenance

Specifications for Roads

(July 2012)

Table of Contents

Table of Contents

800 ABBREVIATIONS AND DEFINITIONS (7/12)

QUANTITY MEASUREMENT TERMS

DEFINITIONS

806 - WEED AND DISEASE PREVENTION (7/2009)

1. DESCRIPTION

2. REQUIREMENTS

808 WORK AREA MANAGEMENT (5/97)

1. DESCRIPTION

2. REQUIREMENTS

809 WATERBARS (7/12)

1. DESCRIPTION

2. REQUIREMENTS

810 SLIDE AND SLUMP REPAIR(7/12)

1. DESCRIPTION

2. REQUIREMENTS

811 BLADING (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

812 DUST ABATEMENT (7/12)

1. DESCRIPTION

2. MATERIALS

3. WEATHER LIMITATIONS

4. EQUIPMENT

5. MAINTENANCE REQUIREMENTS

815 PAVED SURFACE CLEANING (7/12)

1. DESCRIPTION

2. EQUIPMENT

3. MAINTENANCE REQUIREMENTS

816 MAINTENANCE OF UNPAVED SHOULDERS (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

831 DITCH MAINTENANCE AND CONSTRUCTION (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

832 REMOVE AND END HAUL MATERIALS (7/12)

832 REMOVE AND END HAUL MATERIALS (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

834 DRAINAGE STRUCTURE MAINTENANCE (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

835 ROADWAY DRAINAGE MAINTENANCE (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

837 DRAINAGE DIP MAINTENANCE (7/12)

1. DESCRIPTION

2. MATERIALS

3. MAINTENANCE AND CONSTRUCTION REQUIREMENTS

838 MAINTENANCE FOR LIMITED USE (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

DRAWING 838-1

DRAWING 838-2

DRAWING 838-3DRAWING 838-4 DRAWING 838-5

DRAWING 838-4 DRAWING 838-5

DRAWING 838-5

842 CUTTING ROADWAY VEGETATION (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

851 LOGGING OUT (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

853 REMOVAL OF STRUCTURES AND OBSTRUCTIONS (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

854 HAZARD REMOVAL AND CLEANUP (7/12)

1. DESCRIPTION

2. MAINTENANCE REQUIREMENTS

862 MAINTENANCE OF TRAFFIC GATES AND BARRIERS (7/12)

1. DESCRIPTION

2. MATERIALS

3. MAINTENANCE REQUIREMENT

882 EQUIPMENT MOVING (5/97)

1. DESCRIPTION

2. REQUIREMENTS

891 WATER SUPPLY AND WATERING (7/12)

1. DESCRIPTION

2. MATERIALS

3. EQUIPMENT

800 ABBREVIATIONS AND DEFINITIONS (7/12)

Whenever in these specifications, or in other contract documents, the following terms, or pronouns in place of them, are used, the intent and meaning shall be interpreted as follows: (Reference to a specific standard or specification shall mean the latest addition or amendment thereto in effect on date of Invitation for Bids.)

1. AASHTO - American Association of State Highway and Transportation Officials.

2. CS - Commercial Standard Issued by U.S. Department of Commerce.

3. EPA - Environmental Protection Agency.

4. FAR - Federal Acquisition Regulation System.

5. FED SPEC - Federal Specifications.

6. FSS - Federal Specifications and Standards.

7. MSHA - Mine Safety Health Administration.

8. MUTCD - Manual of Uniform Traffic Control Devices.

9. NBS - National Bureau of Standards.

10. OSHA - Occupational Safety and Health Act.

11. PS - Product Standard issued by the U.S. Department of Commerce.

12. UL - Underwriter’s Laboratories, Inc.

QUANTITY MEASUREMENT TERMS

1. Measurement under the contract shall be according to the United States standard measure.

2. The methods of measurement and computation will be those necessary to accurately determine the quantities of materials furnished and work performed.

3. All items that are measured by the linear foot will be measured parallel to its longitudinal centerline, unless otherwise shown on the drawings.

4. A station when used as a definition of term or measurement will be 100 linear feet.

5. Miles will, in the absence of known distances from existing plans or surveys, be determined by the

Government using a calibrated survey odometer or equal substitute operated on the traveled way at or parallel to road centerline.

6. Single lane mile measurement will mean the product of the road length in miles times the equivalent number of continuous traveled way lanes on the road. On two (2) lane roads, the lane miles will be twice the length of the road segment maintained. On one- (1) lane roads, the added length of turnouts will be determined by using a factor that includes the cumulative length of the turnouts. Unless a different factor is established in Special Project Specifications or listed for each affected one (1) lane road in the Road Listing, forty percent (40%) of the road will be considered as having turnouts; this yields a factor of one point four (1.4) times the length in miles of the road segment maintained. This adjustment applies only to work performed under Section 811.

7. The term “ton” will mean the short ton consisting of 2,000 pounds avoirdupois. Trucks used to haul material measured by truck weight shall be weighed empty at least once daily, and each truck shall bear a plainly legible identification mark. Weigh tickets furnished by the Contractor from certified scales will be used to determine weight measurements.

8. Materials measured by the cubic yard in the hauling vehicle shall be measured therein at the point of delivery. Vehicles may be of any size or type, provided that the box is of such shape that the actual volume may be readily and accurately determined.

9. Measurement by the acre will use the length and width treated. Measurement of width will approximate significant slope breaks, but will not include minor deviations along the slopes. The measured slope distance for width will be multiplied by the length treated and converted to a standard 43560 square foot acreage value of the surface area treated.

DEFINITIONS

Wherever in these specifications, or in other contract documents, the following terms, or pronouns in place of them, are used, the intent and meaning shall be interpreted as follows:

1. Agreed or Approved - Official agreement or approval by use of a written document issued by the Government. Agreements also require signature of Contractor’s Representative and are dated.

2. Base Course - The layer or layers of specified or selected material of designed thickness placed on a subbase or a subgrade to support a surface course. (See Illustration of Road Maintenance Terms.)

3. Berm - A curb or dike which controls roadway runoff water, or delineates traffic direction. Berms commonly parallel road centerline; however, on Limited Use Roads (Section 838) may be placed diagonally across the roadbed. (See Illustration of Road Maintenance Terms.)

4. Channel - A natural waterway leading into or away from a culvert or bridge.

5. Contract Amendment - A bilateral written supplemental agreement between the Government and the

Contractor, documenting a modification outside the scope of the contract and establishing an equitable adjustment.

6. Contractor - The individual, partnership, joint venture, or corporation undertaking the execution of the work under the terms of the contract.

7. Culvert (CMP) - Any structure which provides a passageway, drain, or waterway under a road or embankment.

8. Cross ditch - A shallow ditch placed across the roadbed to remove water from the roadbed surface which can be driven across by full-size pickups or other high clearance vehicles; usually placed diagonal to the centerline. (See Section 838.)

9. Lead-off ditch - A ditch used to remove water from roadside drainage ditches, the roadway, cattleguards, or drainage structures such as culverts and drainage dips.

10. Ditch - A relatively long narrow excavation placed to collect or disperse water.

11. Drainage dip - A drainage structure which was previously constructed within the roadbed surface to form a uniform depression which allows routine passage of vehicles while diverting water from the traveled way.

(See Drawing 837-1, Typical Rolling Dip.)

12. Drainage ditch - A ditch located parallel to and abutting the roadbed. (See Illustration of Road Maintenance Terms.)

13. Drainage structure - A term identifying man-made devices placed to control water movements.

14. Drawings - Illustrations showing detailed maintenance required.

15. Equipment - All machinery, operating supplies and tools necessary for the proper performance and acceptable completion of the work.

16. Excess Material - Material from the roadway excess to that needed for maintenance of roadway.

17. Fore slope - The slope of the ditch section nearest to the traveled way. (See Illustration of Road

Maintenance Terms.)

18. Government - The Contracting Officer or the duly authorized Contracting Officer’s Representative (COR) with authority to sign orders.

19. Grade - The vertical alignment of the top surface of the road.

20. Inspector - The Government’s authorized representative designated in writing, assigned to make detailed inspections of contract performance, but not to sign orders to the Contractor.

21. Materials - Any substances specified for use in the performance of the work.

22. Measurement - Method of determining and expressing the quantities of work.

23. Nominal Dimensions or Weights - The numerical values shown on the drawings or in the specifications as measurements for the work.

24. Order - A written order by the Government directing fulfillment of work requirements under the terms of the contract.

25. Original Contract Quantities - Those estimated quantities shown in the SCHEDULE OF ITEMS as awarded.

26. Patching - Minor repairs.

27. Paved Surface or Pavement - Denotes asphalt, concrete, or other stabilized materials excluding natural aggregates. Dust palliative treatments are not considered as pavement.

28. Reasonably Close Conformity - Means compliance with customary maintenance tolerances where working tolerances are not specified.

I. Right-of-Way - A general term denoting land, property, or interest therein acquired for or devoted to a road.

30. Roadbed - The portion of a road between the intersection of the subgrade and side slopes, excluding that portion of the ditch below the subgrade. (See Illustration of Road Maintenance Terms.)

31. Road Listing - A preliminary listing of road locations and any established work priorities.

32. Roadside - (See Illustrations of Road Maintenance Terms).

33. SCHEDULE OF ITEMS- Schedule containing a listing and description of maintenance items, quantities, units of measure, methods of measurement, unit price, and amount.

34. Shoulder - As used in this contract, the term is restricted to roads having a paved surfacing. (See

Illustrations of Road Maintenance Terms.)

35. Slough or Slide - Material deposited on the roadway which may need to be repositioned or removed.

36. Slump - A localized portion of the roadbed which has slipped or otherwise become lower than that of the adjacent roadbed and constitutes a hazard to traffic.

37. Special Project Specifications - Specifications which detail conditions and requirements peculiar to the individual project.

38. Standard Specifications - Specifications for specific divisions of work.

39. Subgrade - Top surface of roadbed upon which subbase, base course, or surface course was constructed.

(See Illustration of Road Maintenance Terms.)

40. Traveled Way - The portion of the roadway for the movement of vehicles. For purpose of this contract, traveled way includes turnouts and curve widening. (See Illustration of Road Maintenance Terms.)

41. Turnouts - A short auxiliary lane on a one-lane road provided for passage of meeting vehicles.

42. Unit of Measure - The unit and fractions of units shown in the Schedule of Items.

43. Unsuitable Material - Material removed during maintenance which must be disposed of in designated locations. Includes material with substantial amounts of vegetation or other objectionable material.

44. Waterbar - A deeper type cross ditch which is not intended for passage of traffic.

45. Work Schedule - The Contractor’s current schedule for work progression.

Figure 800-1 - Illustration of road structure terms

806 - WEED AND DISEASE PREVENTION (7/2009)

1. DESCRIPTION

This work consists of washing and treating construction equipment to remove seeds, plants, and plant fragments from the equipment before the equipment is used on National Forest System lands.

2. REQUIREMENTS

a. Notify the CO in writing at least 15 days before moving any construction equipment onto National Forest System lands. Construction equipment does not include cars, pickup trucks, and other vehicles that regularly travel between the construction site and areas outside of National Forest System lands.

b. Perform all work at a location designated on the plans or other locations approved in writing. Provide the CO with an opportunity to monitor the washing and inspection.

c. Equipment

1. Use a high pressure washing system

2. For work on National Forest System lands, use a washing system that traps all wash water and either stores it for removal from National Forest System lands or recycles the water for continued use. If the equipment recycles the water, provide adequate filters for seed removal. Dispose of the filter material and removed seeds in an approved manner. Do not mix soaps, detergents, or other chemicals with the wash water.

3. For work at a commercial washing facility, use an approved facility.

d. Washing - Wash the sides, tops, and undercarriages of all construction equipment. Remove all seeds, plants, plant fragments, dirt, and debris from the construction equipment.

e. Inspection - Inspect the washed construction equipment, including the undercarriage, to ensure that the washing removed the dirt, debris, and seeds from the construction equipment. Rewash the construction equipment as necessary or as directed.

808 WORK AREA MANAGEMENT (5/97)

1. DESCRIPTION

This Section establishes Contractor responsibilities for traffic control and equipment requirements in work areas.

2. REQUIREMENTS

a. Traffic Conditions - Roads other than those listed for work under Section 835 shall be open to traffic with not more than fifteen (15) minutes maximum delay time unless otherwise provided in Special Project Specifications.

b. Work which interferes with use of traveled roadways shall not be initiated or performed until a plan for satisfactory handling of traffic has been approved by the Government.

c. Traffic Control Devices

1. The Contractor shall provide signs and other devices complying with National Standards as contained in Part VI of the Manual of Uniform Traffic Control Devices (MUTCD). Traffic control for occupied work areas shall be in accordance with these specifications. All signs and devices remain the property of the Contractor.

2. Traffic devices shall be kept current with maintenance operation and removed upon its completion.

3. Traffic approaching the work area from either direction and side accesses having standard Government rectangular -or trapezoidal- shaped route markers with horizontal numbering shall be warned by signing.

4. Required signs may be mounted on portable or temporary mountings. Standard MUTCD shapes, colors, sizes, and legends shall be used.

5. Hazards incidental to the work within or on the traveled way, shoulders, or turnouts shall be marked with hazard identification markers, illuminated beacons, and other MUTCD devices to safely guide road users through the area. Work segments not completed on a daily basis shall be marked appropriately for night travel. Contractor shall obtain authorization before commencing work at night.

6. Advisory speed plates may be used to control traffic through the work area.

d. Flaggers - Properly equipped flag person(s) shall be provided where the traffic is required to stop before proceeding. Traffic shall be stopped in locations which provide width enough for passage of traffic and reasonable protection for vehicles. When flag control is used, advance warning signs are required.

e. Contractor’s Equipment

1. All vehicles and machinery operating on or from the traveled way or road shoulder shall have flashing lights, strobes, or rotary beacons operated continuously while work is in progress. Truck headlights shall be on while operating. Back-up horns shall be required on all self-propelled equipment in excess of 10,000 lbs. gross weight.

2. Vehicles and machinery not currently used in the maintenance operation shall be parked off the traveled way at approved locations to minimize interference with normal use.

809 WATERBARS (7/12)

1. DESCRIPTION

This work consists of installing or removing Waterbars in the Roadbed.

2. REQUIREMENTS

a. Waterbars shall be installed on roads where staked on the ground by the Forest Service.

b. All material excavated shall be used in the installation of the Waterbar. Bermed material shall be compacted by operating heavy equipment over the length and width of the Waterbar.

c. Waterbars removed for haul by blading the berm into the adjacent depression to form a smooth transition along the Traveled Way. The length and width of the fill material shall be compacted by the equipment performing the work.

d. Waterbars may be required to be installed between seasons of use and then removed when haul is resumed.

Waterbar installation will also be required when use of a road has been completed.

810 SLIDE AND SLUMP REPAIR(7/12)

1. DESCRIPTION

a. Slide removal is the removal from Roadway and disposal of any material, such as soil, rock, and vegetation that cannot be routinely handled by a motor grader during Ditch Maintenance, Section 831, and Blading, Section 811.

b. Slump repair is the filling of depressions or washouts in Roadway which cannot be routinely filled by a motor grader during Blading, Section 811.

c. Slide removal and slump repair includes excavation, loading, hauling, placing, and compacting of waste or replacement material and the development of disposal or borrow areas.

2. REQUIREMENTS

a Slide material, including soil, rock and vegetative matter which encroaches into the Roadway, shall be removed. The slope which generated the slide material shall be reshaped during the removal of the slide material with the excavation and loading equipment. Slide material deposited on the fill slope and below the Traveled Way will not be removed unless needed for slope stability or to protect adjacent resources.

b. Surface and Base Courses shall not be excavated during slide removal operations.

c. Slide material which cannot be used for other beneficial purposes shall be disposed of at disposal sites

SHOWN ON THE CONTRACT AREA MAP or SALE AREA MAP. Material placed in disposal sites will not require compaction unless compaction is SHOWN ON THE ROAD MAINTENANCE REQUIREMENTS SUMMARY or as directed by the Forest Service.

d. When filling slumps or washouts, material shall be moved from agreed locations or borrow sites SHOWN ON CONTRACT AREA MAP or SALE AREA MAP, placed in layers, and compacted by operating the hauling and spreading equipment uniformly over the full width of each layer.

e. Existing aggregate surfacing shall be salvaged when practical and relaid after depressions have been filled.

f. The repaired areas of the slump shall conform to the cross section which existed prior to the slump and shall blend with the adjacent undisturbed Traveled Way.

g. The maximum volume of Purchaser responsibility for slide and slump repair is SHOWN ON ROAD

MAINTENANCE REQUIREMENTS SUMMARY. Greater volumes of slide and slump repair not qualifying as Catastrophic Damage are Forest Service responsibility.

811 BLADING (7/12)

1. DESCRIPTION

This work consists of surface blading native or aggregate roadbed where shown in the ROAD MAINTENENCE REQUIREMENT SUMMARY, or SHOWN ON THE CONTRACT AREA MAP or SALE AREA MAP, to a condition to facilitate traffic and provide proper drainage. Blading includes watering, shaping the crown or outsloping and compaction of traveled way, road side ditches, swales, shoulders, berms, and drainage dips in accordance with this specification. Work shall also include the maintenance of culverts, catch basins, and inlet basins.

2. MAINTENANCE REQUIREMENTS

a. Timing- Routine surface blading shall be performed during the contract period as ordered by the Government. Contractor shall commence surface blading within two (2) contract days after receipt of written order unless otherwise stated in the order.

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 MAINTENENCE REQUIREMENT SUMMARY or SHOWN ON THE CONTRACT AREA MAP or SALE AREA MAP, 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. Contractor shall apply water prior to and during blading when sufficient moisture is not present to obtain the required compaction and prevent segregation. Water supply, hauling, and application shall be in accordance with Section 891 and shall be incidental to blading.

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.

c. Routine Blading

1. Upon completion of blading, the surfaces shall conform to the original road dimensions.

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

Unless Compaction Method B is included in the ROAD MAINTENENCE REQUIREMENT SUMMARY, all traveled ways requiring compaction shall be compacted by Method A. Compaction shall commence immediately following blading. Contractor shall apply water prior to and during blading when sufficient moisture is not present to obtain the required compaction and prevent segregation

Compaction methods are:

Compaction Method A: By breaking track while operating equipment on the traveled way.

Compaction Method B: 8-10 ton pneumatic, steel or equivalent vibrating roller, operated to cover the full width five (5) times.

e. Intrusions - Where a safe minimum width is not available, the Contractor will construct berms where ordered and marked on the ground. Material to provide berms will come from the roadway or sources designated in the SHOWN ON THE CONTRACT AREA MAP or SALE AREA MAP.

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. See the following Sections for additional requirements:

831 – Ditch Maintenance 834 – Drainage Structures 835 – Roadway drainage Maintenance 877 – Drainage Dip Maintenance

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

812 DUST ABATEMENT (7/12)

1. DESCRIPTION

This work shall consist of preparing Traveled Way and furnishing and applying materials to abate dust. The roads requiring dust abatement, type of dust abatement material to be used, the rates of application, and frequency of applications will be shown in the ROAD MAINTENENCE REQUIREMENT SUMMARY may be changed by written agreement.

2. MATERIALS

The dust palliative materials shall be as shown in the road listing unless shown as an option for Contractor's election from the following materials:

a. Water (H2O) for dust abatement will be incidental to hauling under this contract and shall be obtained from sources shown on the SALE AREA MAP OR CONTRACT MAP, unless otherwise agreed.

3. WEATHER LIMITATIONS

a. Water applications are not limited by weather forecast or temperature.

4. EQUIPMENT

a. Equipment shall meet the requirements in Section 891 WATER SUPPLY AND WATERING.

5. MAINTENANCE REQUIREMENTS

a. Water applications shall be limited to abatement for hauling vehicles under this contract and shall be provided at a frequency and rate which controls dust such that vehicle tail lights and turn signals remain visible. Rates of application shall be varied as needed but shall be low enough to avoid forming rivulets.

Frequency of application shall be sufficient to accomplish the abatement without saturating and softening the traveled way. Compacted or glazed road surface or wheel tracks may be loosened as needed for water penetration.

b. Prior to initial application, when needed the road will be ordered bladed and shaped under Section 811, Blading.

c. Required subsequent applications may be applied to the existing road surface without blading unless it is ordered.

d. Dust abatement material shall be discharged only on roads approved by the Government.

815 PAVED SURFACE CLEANING (7/12)

1. DESCRIPTION

When required this work consists of removing loose material from paved, traveled way, including bridge decks and paved shoulders where shown in the Drawings.

2. EQUIPMENT

a. Equipment shall have the capability of removing all loose material from paved surfaces without damage to the surface.

b. Use of hydraulic flushing equipment will not be permitted within a horizontal distance of two hundred (200) feet from a live stream, unless approved by the Government.

3. MAINTENANCE REQUIREMENTS

The paved surface shall be cleaned to the existing road width. Materials shall be moved away from road centerline on double-lane roads. Bridge deck cleaning shall require all materials be moved longitudinally off the deck.

816 MAINTENANCE OF UNPAVED SHOULDERS (7/12)

1. DESCRIPTION

This work consists of maintaining unpaved shoulders adjacent to a paved traveled way. Work area will be identified by the Government or shown in the ROAD MAINTENENCE REQUIREMENT SUMMARY , CONTRACT AREA MAP or SALE AREA MAP

2. MAINTENANCE REQUIREMENTS

Existing shoulder material shall be bladed and shaped the entire width to drain away from the traveled way.

Vegetative or other unsuitable materials may be bladed onto slopes adjacent to the roadbed unless otherwise shown in the DRAWINGS. The shoulder material shall be moistened if necessary for compaction. The shoulder shall be compacted adjacent to paved surface edge prior to final shaping. Grader wheels may be used for this compaction. Final shaping shall provide a smooth transition to the paved surface edge. Upon completion, the paved surface shall be cleaned of loose materials in accordance with Section 815.

831 DITCH MAINTENANCE AND CONSTRUCTION (7/12)

1. DESCRIPTION

This Section provides for routine maintenance of various types of ditches to provide a waterway that is unobstructed, as shown in the ROAD MAINTENENCE REQUIREMENT SUMMARY or marked on the ground.

Drainage ditch maintenance is limited to materials contained within the ditch below the elevation of the adjacent edge of the traveled way or shoulder.

2. MAINTENANCE REQUIREMENTS

a. During ditch maintenance care shall be taken to retain existing low growing vegetative cover (primarily grasses and forbs).

b. Ditches shall be maintained by removing rock, soil, wood, and other materials. Upon completion the maintained ditch shall be of the same character as abutting segments that were not required to be maintained.

c. Back slopes shall not be undercut by removal operations.

d. Suitable material up to four (4) inches in greatest dimension removed from the ditches may be blended into existing native road surface and shoulder or placed in designated berm.

e. Material from ditch cleaning operations shall not be blended into or bladed across aggregate surfaced roads nor bladed onto or across bituminous surfaced roads.

f. Material in excess of 2(d) or subject to 2(e) will be ordered hauled to a designated waste area under Section

832. Excess materials temporarily stored on the ditch slope or edge of the shoulder shall be removed daily.

g. Limbs and wood chunks in excess of one (1) foot in length or three (3) inches in diameter shall be removed from ditches and placed outside the roadway.

h. Paved surfaces shall be cleaned of all materials resulting from Contractor’s ditch maintenance work. Paved surface cleaning shall be in accordance with Section 815.

i. Lead-off ditches shall be shaped to drain away from the traveled way.

832 REMOVE AND END HAUL MATERIALS (7/12)

1. DESCRIPTION

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 (500) 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 SALE AREA MAP OR

CONTRACT MAP.

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.

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

d. All materials removed and placed in disposal sites shall be placed by Method 1 unless shown otherwise in the ROAD MAINTENENCE REQUIREMENT SUMMARY.

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.

834 DRAINAGE STRUCTURE MAINTENANCE (7/12)

1. DESCRIPTION

This work consists of cleaning and reconditioning culverts and other drainage structures specified in the ROAD

MAINTENENCE REQUIREMENT SUMMARY

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 catch basin structure to top of cut bank.

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 Project Specifications.

a. Cleaning and reconditioning is limited to the first four (4) feet of inlet and outlet determined along the top of the structure. Ordered reconditioning of culvert inlet or outlet shall be by field methods such as jacking out or cutting away damaged metal which obstructs flow. All cut edges and damage to galvanized coating shall be cleaned and treated with zinc rich coating. Damage or obstructions which are not field corrected under the requirements of this Section shall be reported to the Government.

b. Cleaning and reconditioning of channels beyond four feet shall be agreed upon in writing.

835 ROADWAY DRAINAGE MAINTENANCE (7/12)

1. DESCRIPTION

This work consists of providing drainage on roads that have been physically closed to traffic.

2. MAINTENANCE REQUIREMENTS

a. Access

1. The Government will provide for access through locked gates and also provide any special devices other than standard wrenches or tools, required for removal or replacement of fabricated barricades.

2. Other work associated with Contractor’s access shall be the responsibility of the Contractor. The entrance shall not be left available for access to persons not associated with this contract; temporary barricades shall be used during the active performance of work.

b. Drainage

1. Upon completion of work, the roadway shall be shaped to provide for the removal of surface water, but need not be passable to vehicles. Waterbars, barriers or berms existing prior to the Contractors operation shall be repaired or reinstalled. Areas where water is ponded by existing centerline profile sags in through cuts may be left untreated.

2. Continuous blade shaping of the roadbed is not required under this specification.

3. Work to be done at staked locations shall be as indicated on the stake and/or stated in Special Project

Specifications.

4. In not otherwise specified any of the following methods are acceptable for use at eroded or rutted locations.

(a) Method A: Outsloping the roadbed at not less than one-half (1/2) inch per foot.

(b) Method B: Insloping the roadbed at not less than one-half (1/2) inch per foot of width.

(c) Method C: Water bar roadbed at locations staked on the ground or shown in Special Project

Specifications. Construct in accordance with DRAWINGS included with the Special Project Specifications.

5. Drainage structures located in through fills and natural watercourses shall be fully functional without obstructions, including inlet and outlet channel within twenty (20) feet of the structure.

6. Culverts and other fabricated structures providing drainage from road ditches shall either be cleaned and the ditch made functional or waterbar(s) shall be provided across the roadbed. Fabricated drainage structures discharging on natural ground within three (3) feet of roadbed elevation may be removed at Government’s option to provide the waterbar. Removed structures shall become Contractor’s property to be removed from National Forest. Contractor-installed temporary drainage structures, if any, shall be removed and replaced with a water bar.

c. Slides, Slumps and Slough

1. Slides and slough may be left in place provided they do not potentially impound water or divert water from watercourses. Reshaping of the various surfaces shall be done as necessary to provide drainage.

2. Drainage shall be provided to effectively decrease or eliminate the entry of surface water into slides, slumps, and roadbed surface cracks. The Contractor shall place berms, waterbars or ditches as needed to intercept and remove runoff water from the roadbed. Cracks shall be surface sealed by covering over with native soil materials to prevent additional water entry and compacting with equipment tires.

d. Entrance Devices - Upon completion of work, entrance devices shall be replaced to effectively eliminate access by motorized vehicles having four (4) wheels and a width in excess of fifty (50) inches.

837 DRAINAGE DIP MAINTENANCE (7/12)

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 AND CONSTRUCTION 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 thirty (30) 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 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, 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.

e. Compaction shall be as specified in Section 811.

a. Bituminous surfaced drainage dips shall be cleaned.

838 MAINTENANCE FOR LIMITED USE (7/12)

1. DESCRIPTION

This work consists of making the roadway passable for use by full-size pickups and providing drainage from the traveled way and roadbed.

2. MAINTENANCE REQUIREMENTS

a. Timing - Maintenance shall be performed during the contract period as often as indicated by the accepted schedule or subsequently ordered by the Government. The Contractor shall commence maintenance within two (2) weeks after receipt of written order unless otherwise stated in the order.

b. Drainage

1. Drainage shall be provided at existing drainage structures. Culverts providing drainage from road ditches shall have at least two thirds of the end area usable. Culverts in live streams or natural watercourses requiring cleaning shall have the end area fully usable.

2. Cross ditches conforming to the DRAWINGS shall be placed at staked locations to provide drainage across the full width of the roadbed. Except as provided in 2.c herein, materials removed from cross ditches and cleaning of existing drainage dips shall be bermed downgrade on the roadbed. Cross ditches shall be angled and shall discharge at points of least fill height or on natural ground.

c. Intersections (See Drawing 838-2)

Intersections shown in the Road Listing for work under this Section shall be cross ditched to drain over the full width of the listed road and define the traveled way of the adjacent road. Material removed from this cross ditch shall be placed as a berm on the roadbed and traveled way away from the intersection. A second cross ditch conforming to Drawing 838-1 shall be placed within sight of the intersection when possible, but in no case more than one hundred feet (100’) from the intersection.

d. Objects on Roadbed (See Drawing 838-3)

a. Upon completion, no object extending over four (4) inches above the road surface shall remain within ten (10) foot usable traveled way width. Larger objects shall be selectively removed or repositioned to provide the usable width and lateral clearance required (See Drawing 838-3). The usable width shall be centered on the roadbed or positioned away from the fill slope.

b. Logs and down trees shall be cut to provide not less than twelve (12) feet of opening for vehicle passage provided the remaining ends are in ground contact and do not interfere with drainage. The portion to be removed may be cut into chunks or left as one piece and placed in a stable position where it will not restrict drainage or vehicle passage. Limbs shall be selectively removed to provide stability or ground contact and shall be scattered down slope outside of the roadbed and drainage ways.

c. Rocks and other objects outside the ten (10) foot usable width may remain if drainage is provided from the road surfaces.

e. Slough and Slides (See Drawing 838-4)

1. Slough and slides may be left in place when surface drainage is provided for and at least ten (10) feet of width is available for vehicle passage. The roadbed immediately upgrade shall be cross ditched. Any roadside ditch between the cross ditch and the remaining materials shall be filled and shaped to drain.

2. The Contractor may reposition or ramp over slides and slough when the traveled way is less than ten

(10) feet (See Drawing 838-4), providing the material is capable of supporting vehicles. Ramp profile gradient shall not exceed twelve (12) percent nor have an out slope exceeding six (6) percent. Ramped crossings shall be drained and bermed to a height of at least six (6) inches on the outside of the ramped area.

3. Slough or slide materials which are not capable of supporting a vehicle shall be repositioned on the roadbed to provide the ten (10) foot width unless the Government orders it removed under Section 832.

f. Slumps (See Drawing 838-5)

1. The roadbed immediately upgrade of slumps shall be cross-ditched (See Section A-A of Drawing 838- 1).

2. Slumps at the edge of the roadbed shall not be considered a part of the usable width. Usable width may be reduced to eight (8) feet provided a berm of at least six (6) inches in height is placed on the undisturbed roadbed to divert surface water and provide a curb on the downhill side.

3. Roadbed slumps shall be ramped on both ends onto undisturbed roadbed to provide at least eight (8) foot usable width. No material shall be placed on the slumped area. Removed materials shall be bermed on the roadbed to guide vehicles to the ramp location, used to block any abutting ditches, and to divert water from entering the slump area. Ramp profile gradient shall not exceed twelve (12) percent. Areas within the slumps that could pond water shall be drained.

4. Roadbed cracks shall be sealed with native soil and wheel or tamper compacted to reduce the introduction of surface water.

g. Cutting Vegetation

1. Trees, brush and limbs shall be cut and removed to provide at least twelve (12) feet of usable width centered on the existing usable road surface.

2. Encroaching limbs shall be removed to a height of ten (10) feet above the traveled way surface extending into the passageway from the side. Limbs extending laterally into the twelve (12) foot width shall be cut within six (6) inches of the trunk. Limbs extending down into the ten (10) foot height limitation may be cut or lopped as needed to meet the height requirement.

3. Brush and trees within the twelve (12) foot usable width corridor shall be cut parallel to and within two

(2) inches of the traveled way surface.

4. Materials shall be scattered down slope outside the roadway.

DRAWING 838-1

TITLE

DRAWING APPROVED

DOWNGRADE

45° TO 60°

A A

TYPICAL CROSS DITCH

NO SCALE

SECTION A - A

3ft 3ft5ft

DOWNGRADE

ROAD SURFACE6-inch

BERM

INSLOPE OR OUT SLOPE

IN THROUGH CUT

FIRST CROSS DITCH

DRAINS BEYOND CUT

DOWNGRADE

SLOPE RD.

TO DRAIN

CROSS DITCHING OF LIMITED USE ROADS

838-1

6-inch

T O

DRAWING 838-2

DRAWING 838-3

DRAWING 838-4

CL

TITLE

TREATMENT OF SLIDES AND SLOUGH

DRAWIN G

838-4

APPROVED

DOWNGRADE

BLOCK DITCH

TO FORCE

DRAINAGE

BLOCK DITCH

DRAINAGE

TO FORCE

OPEN ROAD BY HAULING OR

MOVING SLIDE MATERIAL TO

MINIMUM OF 10ft OPENING AND

10ft MIN

REPOSIT ION SLIDE

12ft

12% MAX.

CROSS DITCH

6% MAX.

SLOPES NOT STEEPER THAN 1:1

RAMP OVER

DRAWING 838-5

TIT LE

TREATMENT OF SLUMPS AND ROADBED CRACKS

DRAWING

838-5

APPROVED

PLACE EXCAVATED

RAMP MATERIAL TO

GUIDE TRAFFIC ON

BLOCK DITCH

TO FORCE

DRAINAGE

EACH APPROACH

SLUMP

PLACE CROSS

DITCH

D

RA

INA

G

E

10ft MINIMUM RAMP WIDTH

BE SEALED

CRACK TO

10ft

CRACK TO BE

LONGITUDINAL

SEALED

MINIMUM

PLACE BERM

1ft

842 CUTTING ROADWAY VEGETATION (7/12)

1. DESCRIPTION

This work consists of cutting all vegetative growth including trees and other vegetation less than ten (10) inches in diameter within the roadway when directed by the Contracting Officer.

2. MAINTENANCE REQUIREMENTS

a. General

1. Clearing debris shall be treated as directed by the CO by one or more of the methods described in paragraph 13 below.

2. Brush, trees, and other vegetation less than ten (10) inches in diameter within each area treated shall be cut to a maximum height of six (6) inches above the ground surface or obstruction such as rocks or existing stumps.

3. When work is performed under this Section, the Contractor shall remove all limbs which extend into the treated area or over the roadbed to a height of 16 lf. See Section 851 for additional requirements.

4. The width and height of the vegetation cutting shall be:

Road No. From MileTo Mile Width Heigh All Roads Will designated 16'

On the ground

5. Signs, markers, and other road appurtenances are designated to be retained. Other items to remain will be marked on the ground.

6. The clearing width shall be as agreed upon in writing.

7. Work may be performed either by hand or mechanically. Self-propelled equipment shall not be allowed on cut and fill slopes or in ditches.

8. Damage to trunks of standing trees caused by Contractor’s operation shall be corrected by Contractor, either by treatment with a commercial nursery sealer or by removing the tree as directed by the Government.

9. Mechanical brush cutters shall not be operated when there are non-Contractor personnel or occupied vehicles within a hazardous distance of immediate operating area.

10. Trees within the cutting limits which are over ten (10) inches in diameter may be limbed in lieu of cutting.

Limbs of trees shall be cut to within one (1) inch of the bole of the tree when limbing is done by hand. If limbing is completed mechanically, stobs longer than 1" shall be hand trimmed to within one (1) inch of the bole of the tree.

11. Cutting Vegetation Clearing Limits – Shall be as needed for haul or as directed by the CO.

12. Transitions between differing increments of cutting width shall be provided. Transitions shall be accomplished in a taper length of not less than fifty (50) nor more than seventy (70) feet.

13. Road Clearing Slash Treatment Method Specifications:

a) Chipping Clearing Slash up to 6 inches in diameter shall be processed through a chipping machine. Chips shall be scattered to a loose depth not exceeding 6 inches. The remainder of the material shall be cut into three (three) foot lengths and scattered.

b) Deck Clearing Slash 10 inches or larger in large end diameter and 10 feet or more in length shall be Decked for disposal by Forest Service by piling pieces parallel to each other at agreed upon locations.

c) Scatter Clearing Slash shall be scattered to reduce slash concentrations with slash being generally left within 18 of the ground. Logging Slash shall be scattered into openings away from and without unnecessary damage to residual trees. All scattered logs shall be limbed, placed away from trees and positioned so they will not roll. When Scattering is specified, another method may be used by agreement. See Remove.

d) Remove Clearing Slash shall be moved or hauled to locations shown on CONTRACT or SALE AREA MAP, or as agreed and designated on the ground where it shall be piled for disposal by Forest Service. This also refers to Scatter In Units where treatments includes haul to units and scatter. See Scatter Treatment for details.

e) Pile Clearing Slash smaller than 10 inches in large end diameter and 10 feet long shall be hand piled for disposal by Forest Service. A 3 ft wide fire line cleared to mineral soil will be constructed around and immediately adjacent to each pile.

f) Masticate Clearing Slash <10 inches stump diameter and greater than 1 foot in height shall be masticated (shredded, mulched, chipped). See paragraph 10 above for trees greater than 10"dbh.

1. All masticated vegetation shall have a stump height generally no greater than 6 inches above ground level as measured on the uphill side or 6 inches above obstacles (i.e. large rocks and other non-vegetative material not suitable for mastication).

2. Unless otherwise agreed, residual masticated vegetative debris resulting from contractor’s operations shall lie flat on the ground and generally not exceed 12 inches in height. Individual pieces of vegetative debris shall generally not exceed 3 feet in length.

g) Lop and Scatter Lop and Scatter for roadway clearing typically refers to roads with minor clearing requirements where most limbing may be done by hand. In this case material may be side cast onto fill slopes beyond the road bed limits with a final slash height of eighteen

(18) inches or less and no concentrations of clearing slash.

14. Materials resulting from the cutting operation in excess of one (1) foot in length or one (1) inches in diameter, shall not be allowed to remain in roadway ditches, or within water courses.

15. Limbs and chunks in excess of one (1) inches in any dimension shall be removed from the traveled way and shoulders.

16. Materials may be scattered down slope from the roadbed, outside of the work area and drainages.

Concentrations shall be rescattered or removed.

17. Chip material shall be removed from roadway surface by surface blading. This blading, is included in cost for brush removal and is separate from work specified in Section 811 – Blading.

851 LOGGING OUT (7/12)

1. DESCRIPTION

This work consists of ordered removal of fallen trees, snags and trees greater than…