Attachment A.pdf

RFP AG-03R6-S-08-0055

Trail Construction and Maintenance Attachment A, Page 1 of 25

ATTACHMENT A

Wage Rate Decision No. MT080002, dated 2/8/2008, 5 pages

Minimum Impact Guidelines, 2 pages

Food Storage Special Order LC00-18, (Flathead National Forest), 6 pages

Special Project Specifications, 11 pages

Section 922 – Water Bars Section 936 – Wire Baskets Section 937 – Treated Timber Retaining Wall Section 938 – Jackleg Fence Section 982 – Logging Out

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Wage Rate Decision No. MT080002, Mod. 0, Dated 2/8/2008

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Minimum Impact Camping Guidelines

Welcome to the Bitterroot National Forest. We take resource management and its preservation very seriously here. Please respect and protect the natural environment, especially in roadless and Wilderness areas. Careful selection of your campsite is one step toward that goal. Choose the site thoughtfully and use it lightly. In some instances it will be pre-selected by the District Ranger. Leave the area clean and in its natural condition. The following thoughts and procedures are provided to help educate visitors about minimum camping and its practical application. Good luck and thanks for helping manage your National Forest.

1. Select campsites in durable areas at least 200 feet from lakes, streams, or trails. Do not construct lean-to's, bough beds, or drainage ditches. Self-supporting tents and foam pads are alternatives to using native material. Pick sites which drain well naturally to avoid ditching tents.

The camp area shall be maintained to present a clean, neat and orderly appearance. It should be kept clean and free of litter at all times, e.g. pull tabs, cigarette butts, bread closures, foil.

Combustible and organic garbage will be completely burned. Metal, glass, plastic and other non-burnable material will be packed out. Firewood debris and chips will be raked weekly during camp occupation and wood kept in a stack.

Nailing to live trees is prohibited. Use rope or twine and shims if you attach tent poles to trees temporarily.

Do not bury garbage or burn cans, foil, plastic or freeze-dried food containers.

Return all camp areas to their natural condition. Carefully return logs, rocks, limbs, etc.

displaced during camp set-up.

2. Equipment caches are prohibited. All equipment (including stoves, tables, beds, tools, dishes, etc.) and supplies (including camp gear, food and horse feed) will be packed out at the end of the project.

3. Pit-type or “slit trench” toilets with or without tent covering are mandatory at all camps.

Pit/trench will be located at least 200 feet from any water source. It must be at least to mineral soil depth and sufficient for planned use period. Plan ahead. Length of stay may require more than one pit/trench. The pit/trench will be filled in at the end of use. Utilize natural screening effect of timber, brush, rock bluffs, etc.

4. Don't build rock fire rings. Use a lightweight stove, fire pit or fire pan to avoid or contain warming/cooking fires. Use an existing fire ring or, if not available dig a shallow pit. Remove and save the sod or topsoil by setting it aside away from disturbance. Burn dead and down material. Keep fires small; burn all wood to a fine ash. For extended use at one campsite, periodically bury resulting ash but use the same fire pit. COR or his/her representative will designate any snag to be felled for camp wood if necessary. Felled trees will be low stumped at no more than 3" height ground level. Restore the fire site by dismantling fire ring and/or

Attachment A, Page 8 of 25 replacing soil, plants, and rocks removed from hole. Camouflage the site with soil, needles and twigs.

5. Prevent water pollution by not adding soap to water sources. Waste water shall be disposed of in a leach pit at least 200 feet from springs, streams, and lakes. The pit shall be a minimum 2’ X 2’ X 2’ and shall be filled with rock 2 to 8 inches in diameter. The leach pit shall be covered with at least 2 feet of compacted soil when the camp is closed.

6. In order to decrease chances for site degradation, the use of saddle and pack stock shall be kept to a minimum necessary to accomplish the project. A maximum 11 head per trip addresses the initial camp and tool supply. Once tools and camp are transported into the jobsite, use of stock should be limited to 3-4 head during the length of the project. At the end of the project and for complete camp movements during the project, stock shall not exceed 11 head. Stock not in use shall be removed from the National Forest until such time as they are required.

Avoid tying stock directly to trees. Allow stock to graze loose when possible. Use hobbles, pickets, high lines, or rope hitch rails to avoid scarring trees and compacting the soil. "Tree-saver" straps help avoid scarring when a rope hitch line is attached to a tree.

Stock handling facilities will be located at least 200 feet from any water source. Manure will be scattered to hasten decomposition.

In many areas forage is scarce. Check with the Ranger Station for current information about local conditions. In order to slow the spread of non-native plant species the use of weed-free feed is required. Supplemental livestock feed, when needed, will be processed pellets or certified hay and /or grain. Rolled oats is required. Utilize feed bags and hay netting to contain feed and avoid introduction of non-native species.

7. Stock salt will be in block form and secured off the ground in waterproof container. Locate it away from camps, trails, and live water. Remove when livestock are removed.

8. Pack and saddle stock must be ridden or led and not permitted to run loose on trails (except for short time periods when animal becomes crippled or where safety dictates otherwise). Avoid cutting switchbacks to prevent erosion.

9. Solitude is an important part of a wilderness visit. Minimize your impact on others by camping away from other campsites. Leave pets at home. Keep noise level to a minimum. Be courteous in sharing the trail with others.

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SPECIAL PROJECT SPECIFICATION

SECTION 922 – WATER BARS

Delete this specification in its entirety and replace with the following:

Description

922.01 Work. This work consists of installing water bars, including excavation and backfill;

selecting log and rock materials; and furnishing treated timber, belting, and other materials.

Materials

922.02 Requirements. Use materials meeting the requirements of the following sections:

961-Rock, Grid Pavement Units, and Aggregate 962-Material for Timber Structures

Use rubber belting that is single-ply, non-reinforced material 3/8” to ½” thick.

Construction

922.03 General. Install water bars of the types and at the locations SHOWN ON THE DRAWINGS or DESIGNATED ON THE GROUND.

922.04 Excavation and Embankment. Perform excavation and embankment in accordance with Section 912. Around water bars, backfill and compact suitable materials that is free of rocks larger than 3” in size. Compact material on the downgrade side of rock, log and treated timber water bars, flush with the top of water bars. Water bar drainage: Leadoff ditch construction will be done in accordance with Subsection 912.07 Ditches.

Outslope the trailbed on the upgrade side of the water bar with a slope equal to or greater than the trail grade leading into the water bar. Provide a uniform outsloped plane that forms a gutter against the water bar.

922.05 Rock Water bar. Tightly embed selected rocks into the trailbed. Place water bar rocks so that there are no dips, gaps or other breaks in the continuous top line of the water bar that would allow water to pass through.

Ideal rock size shall be 4” thickness x 12” depth x 18” length. Water bar rocks will be proportional but generally that dimension or larger. Water bar rocks will be sound and solid.

Rock exposed to high-intensity fire will generally tend to crumble and will not meet specifications.

Attachment A, Page 16 of 25

922.06 Log or Treated Water bar. Embed peeled native logs or treated timbers into the trailbed to form a water bar across the trail. Use anchor methods as SHOWN ON THE DRAWINGS at log or timber ends outside the trail tread. Pre-drill pilot holes (for steel pins) through timbers prior to treatment. Anchor stakes firmly in the ground and tightly nail to the log without splitting.

In the absence of a backslope, anchor the upgrade end of the log or timber water bar in the same manner as the downgrade end.

Water bars shall be placed so that they do not extend more than six (6) inches beyond the trail shoulder and/or 12” when in contact with the ground. Water bars shall be placed at an angle to the trail of 30 - 45 degrees, up to the steepness required to ensure that there is less than 6” extending, as well as providing proper drainage.

Rocks of sufficient size and weight may be substituted as an anchor method if available on site.

922.07 Rubber Belting Water bars. Tightly secure one continuous piece of rubber belting between treated timbers as SHOWN ON THE DRAWINGS.

Measurement

922.08 Method. Measure the quantities in accordance with Section 906.

Payment

922.09 Basis. Pay for the accepted quantities in accordance with Section 906 at the contract unit price for each PAY ITEM SHOWN IN THE SCHEDULE OF ITEMS.

Make payment under:

PAY ITEM PAY UNIT

922 (01) Native Log Water bar…………………………………………….EA

922(02) Rock Water bar…………………………………………………...EA

922(03) Treated Log Water bar……………………………………………EA

922(04) Rubber Belting Water bar………………………………………...EA

Attachment A, Page 17 of 25

SPECIAL PROJECT SPECIFICATION

SECTION 936 – WIRE BASKETS

Delete this specification in its entirety and replace with the following:

Description

936.01 Work. Work consists of constructing wire basket structures, including excavating, placing borrow, backfilling, and trailbed and slope finishing.

Materials

936.02 Requirements. Use materials meeting the requirements of the following subsections:

961 – Rock, Grid Pavement Units, and Aggregate 964 – Geosynthetics 965 – Wire Baskets

Construction

936.03 Basket Assembly. Do not damage wire coatings during basket assembly, structure erection, cell filling, or backfilling. Rotate the basket panels into position and join the vertical edges with fasteners. Where lacing wire is used, wrap the wire with alternating single and double loops every other mesh opening. Where spiral binders are used, crimp the ends to secure the binders in place. Where alternate fasteners are used, space the fasteners in every other mesh opening.

Rotate the diaphragms into position and join the vertical edges with fasteners, lacing wire, or spiral binders as specified above.

936.04 Structure Erection. Place the empty baskets on the foundation and interconnect the adjacent baskets along the top and vertical edges using fasteners.

Where lacing wire is used, wrap the wire with alternating single and double loops every other mesh opening. Install the other fasteners according to Subsection 936.03, but space alternate fasteners in every other mesh opening.

In the same manner, interconnect each horizontal layer of baskets to the underlying layer of baskets along the front, back, and sides. Stagger the vertical joints between the baskets of adjacent rows and layers by at least one cell length.

936.05 Cell Filling. Remove all kinks and folds in the wire mesh and properly align all the baskets. Place rock carefully in the basket cells to prevent the baskets from bulging and to

Attachment A, Page 18 of 25 minimize voids in the rock fill. Maintain the basket alignment and shape by placing the basket in tension during the filling operation.

Place internal connecting wires in each unrestrained exterior basket cell greater than 12 inches in height. This includes interior basket cells left temporarily unrestrained. Place internal connecting wires concurrently with rock placement.

Fill the cells in any row or layer so that no cell is filled more than 12 inches above an adjacent cell. Repeat this process until the basket is full and the lid bears on the final rock layer.

Secure the lid to the sides, ends, and diaphragms according to Subsection 936.04. Make all exposed basket surfaces smooth and neat, with no sharp rock edges projecting through the wire mesh.

936.06 Trailbed and Slope Finishing

To armor the fill slope extending from the top of the wire baskets, the toe of the fill slope shall be constructed of rocks weighing at least 25 pounds and bedded flush and tightly to the baskets.

Measurement

936.08 Method. The method of measurement, as described is section 906, will be SHOWN IN THE SCHEDULE OF ITEMS. Base area computations on surfaced measurements. Do not include overlap quantities.

Payment

936.09 Basics. Pay for the accepted quantities at the contract unit price for each PAY ITEM

SHOWN IN THE SCHEDULE OF ITEMS.

Make payment under:

PAY ITEM PAY UNIT

936(01) Baskets, galvanized or aluminized coated……………………………F2

936(02) Baskets, epoxy or polyvinylchloride coated……………………….... F2

936(03) Baskets, galvanized or aluminized coated……………………………F3

936(04) Baskets, epoxy or polyvinylchloride coated……………………….... F3

936(05) Geotextiles, Type_____________……………………………………F2

Attachment A, Page 19 of 25

SPECIAL PROJECT SPECIFICATION

SECTION 937 – TREATED TIMBER RETAINING WALL

Description

937.01 Work. Work consists of constructing treated timber retaining walls to support fill slope for trail tread. Work includes excavation, pre-drilling, pinning, borrow, backfilling, anchoring and trailbed and slope finishing.

Materials

937.02 Requirements. Use materials meeting the requirements of the following sections:

962-Material for Timber Structures

Timbers shall be treated in accordance with AASHTO M 133. All treated timbers shall be completely and accurately fabricated before treatment. All field sawn cuts and drilled holes shall be treated with copper napthenate, 2% copper solution.

Timbers shall be a minimum six (6) inch x six (6)inch size, appropriate length for specific site requirements. All timbers shall be the same height and width.

Nine gauge galvanized wire or its equivalent shall be used to tie timbers to anchor posts. ¼” stainless steel cable or its equivalent shall be used to anchor “deadman posts” to upright timbers where applicable. Drift pins shall be minimum #13 rebar (3/8” diameter), ground to a point on one end and cut to a length equal to 1-3/4 to 2 times the depth of timber being used.

Construction

937.03 Excavation. Excavate in accordance with Section 912 to provide a full bench foundation of stable, undisturbed soil or compacted suitable material. Construct the finished foundation grade parallel with the trail profile grade. Excavation behind the wall shall be minimized in order to provide for undisturbed ground in which to drive anchor posts.

937.04 Installation. Timbers shall be installed as shown on SPS Drawing 937-1.

Set upright timbers a minimum 24 inches below existing ground level. Timbers will be lined up so that backing planks make full contact with a face of the timber. Batter will be 4:1. Timbers set in ground will be tamped tight so they are solid prior to attaching backing planks.

Backing planks will be nailed with minimum 16d nails located two (2) inches from each end and at least one (1) inch from each edge. At least two nails will be used to attach each end of a plank.

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Space treated timbers for retaining fill associated with construction of switchbacks. One end should contain fill used to construct lower approach at staked end of switchback. The other end of structure should extend around the switchback to a point adjacent to the daylight area where cut and fill sections meet. No greater than four (4) feet distance shall be spanned between timber’s centerlines. Adjustments in alignment or placement that are required to match ground conditions shall be agreed to prior to construction.

“Deadman posts” will be buried to support upright timbers. Tie cable or wire will be buried a minimum eight (8) inches below compacted tread level. “Deadman posts” will be located so that each eight (8) feet span will have the support of one “deadman”.

937.05 Backfill. Place treated timbers, backing planks and “deadman posts” before backfilling and compaction. At least 50% of the backfill material for postholes shall be less than one (1) inch in length. No rocks greater than two (2) inches in length shall be used in posthole backfill.

Backfill and compact suitable material for switchback tread construction.

Measurement

937.06 Method. Measure the quantities in accordance with Section 906.

Payment

937.07 Basis. Pay for the accepted quantities in accordance with Section 906 at the contract unit price for each PAY ITEM SHOWN IN THE SCHEDULE OF

ITEMS.

Make payment under:

937(01) Treated Timber Retaining Wall……………………………………. SF

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SPECIAL PROJECT SPECIFICATION

SECTION 938 – JACKLEG FENCE

Description

938.01 Work. Work consists of constructing wooden, jackleg fence including furnishing materials, transporting them to field locations, rendering materials at field locations AS SHOWN ON THE DRAWINGS, constructing jacks, bracing and pole attachment.

Materials

938.02 Requirements. Use materials meeting the requirements of Section 962-Material for Timber Structures including commercially available posts and rails. Materials are not required to be treated with preservative.

The location of trees for native timber materials will be SHOWN ON THE DRAWINGS and

DESIGNATED ON THE GROUND.

Commercially available materials will be peeled, straight, sound and free of defects. They will have squared ends with knots and limbs trimmed.

Construction

938.03 General. The fence constructed under these specifications shall be standard buck and pole fence, often referred to as “jackleg fence”, three poles on one side, and one pole on the other (back side). Short height fence used in trail obliteration will use one pole attached in the top “X” of jacks, two poles on one side and one pole on the other (back side). The new fence will follow the alignment as STAKED ON THE GROUND.

All materials will be transported to construction sites via trail unless an alternative is agreed upon. Transportation will be limited to vehicles suited for the existing trail tread dimensions and will be approved by the CO.

938.04 Jacks. Jacks will be long enough to meet pole height requirements as SHOWN ON THE DRAWINGS. Jacks should be notched slightly less than half-way through the log and the width of this notch should be equal to the diameter of the log used for the other leg so the jack’s legs don’t spread. One, six inch (6”) smooth spike should be driven from each side of the jack to hold the legs together. If they penetrate all the way through, they should be bent over. See Drawing 937-3.

938.05 Poles. The poles can be a minimum 8 ½’ length; however, they should be uniform for each panel, all the same length. Seventeen feet (17’) length is a typical, commercially available fence rail/pole. They will be at least three inches (3”) in diameter on the small end. Materials rendered on site will have a strip of bark peeled off the top and bottom of the poles so the bark

Attachment A, Page 22 of 25 will fall off and not hold moisture. Poles must be supported in the center by a jack as well as on both ends with a maximum eight foot (8’) span. Flatten or notch poles where they come in contact with the jacks so that when they are nailed in place with six inch (6”) spikes, at least three inches of the spike penetrates the jack. A minimum two inch (2”) overlap (pole over jack) will be provided and nailing must not split the end of a pole. See Drawing 937-1.

938.06 Pole Spacing. Two or three poles will be used on one side of the jacks, depending on top pole height. Shorter height fences will use the top pole, laid and attached in the top “X” of the jacks. Pole spacing should not change with increased height; but number of poles would increase for taller fence. Spacing of these poles will be as follows: fourteen inches (14”) from ground to bottom of first pole; twenty eight inches (28”) from ground to center of second pole; forty two inches (42”) from ground to top of top pole. The rub pole on the back side of the fence will be twenty inches (20”) from the ground to the bottom of the pole. See Drawing 937-1.

938.07 Bracing. Each jackleg fence panel will be braced. A fence panel in this contract will consist of an eight - sixteen foot (8-16’) length of fence, with a jack on each end and one supporting the center, maximum eight foot (8’)span between jacks. A double pole inside “X” brace will be used at each fence panel AS SHOWN ON THE DRAWINGS. The fence poles will be outside the brace poles and face the reconstructed trail to serve as a visual deterrent to breeching obliterated sections. See Drawing 937-2.

Measurement

938.08 Method. Measure the quantities in accordance with Section 906.

Payment

938.09 Basis. Pay for the accepted quantities accordance with Section 906 at the contract unit price for each PAY ITEM SHOWN IN THE SCHEDULE OF ITEMS.

Make payment under:

938(01) Jackleg Fence……………………………..…………………….. LF

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SPECIAL PROJECT SPECIFICATION

SECTION 982 - LOGGING OUT

Delete this specification in its entirety and replace with the following:

Description

982.01 Work. This work consists of removing logs, down and leaning trees from the trail clearing limits; removing loose rock and woody debris from the trail tread; as well as cleaning existing drainage facilities including culverts, ditches, waterbars and drainage dips.

Requirements

982.02 Clearing Out. If any portion of a downed tree or log lies across the trail centerline or protrudes into the trail clearing limits, the downed tree or log shall be cut off at or beyond the edge of the clearing limits. If the downed tree or log is entirely within the clearing limits, it shall be entirely removed from the clearing limits.

The portion of cut tree or log that remains on the upper side of the trail shall be either firmly anchored to prevent sliding or rolling onto the trail tread or moved across the trail to the lower side and scattered outside the clearing limits. Scatter the down trees on the lower side of the trail tread outside the clearing limits. Do not place such materials in stream channels, drainage ditches, culvert catch basins or outlets, or other locations where they would prevent the free flow of water away from the trail tread.

Remove loose roots and stumps from trees that have been uprooted within the trail clearing limits and do not require blasting.

982.03 Leaning trees (live or dead). Any leaning tree, regardless of the location of its root system, which enters the trail clearing limits shall be cut off at the ground level and shall be treated as a downed tree and handled in accordance with 982.02 above.

982.04 Rerouting. Rerouting the trail around windfalls, uprooted trees, and other obstacles will not be permitted. Ramp or reroute sections of the trail tread that have been damaged by uprooted stumps as necessary to provide short-term, safe passage on the trail. Notify COR as soon as practicable with detailed location. Payment for such work will be incidental to the specified work item and no extra payment will be made.

982.05 Wood debris. All loose wood debris including, but not limited to limbs, branches, and other tree remnants larger than 3 inches diameter and 18 inches length that have fallen on the trail tread shall be removed from the tread.

982.06 Soil and debris slides. All slides along with their location shall be brought to the attention of the COR as soon as practicable.

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982.07 Loose rock removal. All loose rock 6 inches or greater in any dimension, except those so large as to require blasting, shall be removed from the trail tread and scattered by sidecasting to the lower side of the trail tread outside the clearing limits. Distribute rock to ensure that no blockage of drainage or creation of a windrow occurs. Do not dispose of waste material in water courses. Any rock too large to remove shall be reported to the COR as soon as practicable.

Remove any loose rock in drainage dips or ditches that may impede water flow off the trail.

Loose rocks are rock that are not firmly embedded in the trail and can be removed by hand.

982.08 Drainage maintenance.

Turnpike maintenance. Remove debris and soil from culvert catch basins; inlet and outlet ditches; and from inside culverts to permit the unobstructed flow of water into, through, and away from the culvert. Remove debris and soil from side ditches and leadoff ditches and restore ditches to original design standard, as needed.

Waterbar maintenance. Accumulated dirt, rock, and debris shall be removed from the upgrade side of all waterbars and deposited on the downgrade side of the waterbar to bring the trail tread flush with the top of those waterbars. Material shall be removed for a minimum of 2 feet width upgrade from the waterbar. The 2 foot width shall begin at the inside edge of the trail tread and extend to the outside end of the waterbar, measured on the upgrade side. Clean debris away to 1/2 the diameter measurement of the waterbar structure. This excavation should be sloped gradually and meet the waterbar at its centerline. Clean any leadoff ditches to their original design standard and "open to daylight" to permit water to flow freely from the trail tread.

Drainage dip maintenance. Clean deposited material and restore drainage dips to original design standard. Remove all debris from the leadoff area of dips to permit water to flow freely from the trail tread. Use suitable material obtained by cleaning dips for fill on the downgrade side, removing rock more than 3 inches at its greatest dimension. Compact all material placed in the trail tread.

Measurement

982.09 Method. Determine the quantity of logging out units by measuring the slope distance along the trail centerline or by actual count of those units designated for removal.

Payment

982.10 Basis. Make payment, for all units inspected and accepted, at the unit prices SHOWN

ON THE SCHEDULE OF ITEMS.

Attachment A, Page 25 of 25

Make payment under:

PAY ITEM PAY UNIT

982(01) Logging Out……………………………………………………………MI

982(02) Logging Out Diameter……………………………………………........EA

982(03) Logging Out…………………………………………………………....LF

982(04) Logging Out……………………………………………………………LS