1240BH26Q0008 Hells Canyon Portfolio B.pdf

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GAOA Hells Canyon Overlook Stone Repair
Solicitation number
1240BH26Q0008
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Esri, NASA, NGA, USGS, FEMA, Esri Community Maps Contributors, Oregon State Parks, State of Oregon GEO, Esri, TomTom, Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, Bureau of Land Management, EPA, NPS, US Census Bureau, USDA, USFWS

Hells Canyon Overlook Vicinity Map and Access Road richardmmills

Polygonal Line

Callout

Hells Canyon Overlook

NFSR 3965 MP 2.78

Entrance sign base it at junction of NFSR 3965 & Overlook site

Spring location for water

Oval

Junction of NFSR 3900 & 3965

Joseph, Oregon Approximately 42 miles

Hells Canyon Overlook Site Map Legend

Hells Canyon Overlook

400 ft

N

Columns

Wallowa Mountain Loop Road; NFSR 39:

2.7 miles

Contractor may block one parking space during construction; overlook road shall remain open

Interpretive panel base

Entrance sign base

Potential natural rock source

Wall

Hells Canyon Overlook Site Map Legend

Hells Canyon Overlook

100 ft

Potential natural rock source is below existing pathway

Wall section

Columns

Contractor may block one parking space during construction; overlook road shall remain open

Red mortar on entrance sign base

Cement block base, light grey mortar. This is the worst example out of the columns.

Showing one of the interpretive panel bases – note 2x4 and cement block base as well as the original height as seen on the opposite end. This is the area with the most loss of stone.

Existing Pictures

A view of the columns with typical repairs needed.

An example of an optional cap. Would be placed on all columns, across the top of the wall, and at each end of both interpretive panel bases.

SUPPLEMENTAL SPECIFICATIONS

CONTRACTOR SUBMITTALS

1) Construction schedule

2) Material certifications and data sheets for:

• Cement

• Plasticizer

• Water Repellant Admixture

• Color Pigments

• Air Entrainment Admixture

• Joint Sealant

• Color and Material for commercial source natural stone caps, (Option Item)

3) Quality control plan for removing damaged mortar. Plan should state which tools contractors propose to use.

MATERIALS

STONE: Match the size, general shape, and color of the existing rock (see photos) with durable locally sourced natural stone that is approved by Government Representative.

Alternate sources of stone may be approved by the contracting officer. Stone must be tested for durability prior to installation. Visually inspect for cracks and fissures, and either discard or trim any stones that have cracks or fissures running through the stone or on an edge or overhang. Test if stone easily splits or flakes by locating a broken edge and attempting to separate any layers or grains using a knife edge. Tap the stone with a metal object and listen for a dull sound that could indicate internal cracks or inclusions.

Fabricate stone to comply with existing sizes, shapes, and tolerances. Carefully inspect stone at source for compliance with requirements for strength, appearance, material, and fabrication. Replace defective units before placing them if applicable.

Arrange stones with color and size variations uniformly dispersed for an evenly blended appearance.

Remove and replace stone masonry if broken, chipped, stained, or otherwise damaged.

Stone may be repaired if methods and results are approved by Government Representative.

Also remove and replace any defective joints.

Type of cap (Option Item): Stone caps on the columns will be added to reduce water intrusion and increase longevity. They should appear natural and match the color and texture of existing stone, as approved by Government Representative.

MORTAR: Match the existing mortar color (see photos). Mortar on all structures except for entrance sign base is light grey. Entrance sign base is brick red.

Mortar for Stone Masonry: Modified Type M mortar mixed mechanically on site in the following proportions or as approved by Government Representative:

1. One-part Portland cement Type I, II or I/II.

2. One quarter part plasticizer.

3. Three parts masonry sand.

4. Water repellent admixture per manufacturer’s recommendations.

5. Four to Six percent air-entraining add-mixture.

6. Water

Do not use calcium chloride.

Limit cementitious materials in mortar to Portland cement.

ASTM (Formerly American Society for Testing Materials) C 150, Type I, II or I/II, except Type III may be used for cold-weather construction. Provide natural color or white cement as required to produce mortar color indicated.

Portland Cement-Lime Mix: Packaged blend of Portland cement complying with ASTM C 150, Type I or III, and hydrated lime complying with ASTM C 207.

Mortar Pigments: Natural and synthetic iron oxides and chromium oxides, compounded for use in mortar mixes. Use only pigments with a record of satisfactory performance in stone masonry mortar. Davis Colors; True Tone Mortar Colors, or equal.

1. Pigments shall not exceed 10 percent of Portland cement by weight.

2. Submit manufacturer’s product information and dosage rate for specified color.

3. Submit manufacturer’s full range of color samples for approval by Government

Representative.

Masonry Sand for Mortar: ASTM C 144

Plasticizer: Finely ground montmorillonite clay acting as hydrated lime substitute for mortar mixes containing Portland cement and mason sand (“Easy Spred”). ASTM C-270.

Water-Repellent Admixture: Liquid water-repellent mortar admixture intended for use with concrete masonry units, containing integral water repellent by same manufacturer as pre-blended mortar mix when used. Grace Construction Products, “Dry-Block”; Tamms Industries "Hydratite Plus;" Master Builders "Rheomix 825"; or equal.

Air-Entraining Admixture: 4 to 6 percent air-entraining add-mixture. ASTM C-260, “AEA-15” or equal.

Polymer Bonding Agent: high solids butadiene rubber latex emulsion admixture, classified by the American Concrete Institute as a non re-emulsifiable bonding agent, used to improve adhesion to properly prepared substrates, improve freeze thaw durability, reduce premature drying, and increases both tensile and flexural strengths. “Mascobond SBR,” Custom Building Products “Acrylic Mortar Admix,” or equal.

Maintain uniform joint widths except for variations due to different stone sizes and where minor variations are required to maintain bond alignment if any.

Joint Sealant: S-1 Joint Sealant, ASTM C920, polyurethane or polysulfide, Type M, Class 25, Grade NS, Shore A hardness of 20-40. “Dow corning 790”, “G.E. Silpruf”, “Pecora 890” or approved equal.

For all joints between stone and wood or stone and metal. Follow manufacturer’s recommendations for placement.

Pointing Mortar:

Pointing Mortar by Volume: ASTM C270, Proportion Specification, 1-part portland cement, 4 parts lime, and 12 parts sand. Add mortar pigments to produce mortar colors required.

Pointing Mortar by Type: ASTM C270, Proportion Specification, Type N, Type O unless otherwise indicated; with cementitious material limited to Portland cement and lime. Add mortar pigments to produce mortar colors required.

The contractor may submit different mortar types or mixtures for approval prior to purchase to contracting officer.

PROCEDURE

Repointing:

Rake out and repoint joints to the following extent:

1. All joints in areas indicated.

2. Joints located at log/column interface. Use sealant approved by government representative.

3. Joints at locations of the following defects:

a. Holes and missing mortar.

b. Cracks that can be penetrated 1/4 inch or more by a knife blade 0.027 inch thick.

c. Cracks 1/8 inch or more in width and of any depth.

d. Hollow-sounding joints when tapped by metal object.

e. Eroded surfaces 1/4 inch or more deep.

f. Deterioration to point that mortar can be easily removed by hand, without tools.

g. Joints filled with substances other than mortar.

h. Joints where mortars may trap water or where mortar has separated from adjacent stone.

4. Do not rake out and repoint joints where not required.

5. Rake out joints as follows, according to procedures demonstrated in approved mockup:

a. Remove mortar from joints to depth of 2 times the joint width but not less than 3/4 inch and not less than that required to expose sound, un-weathered mortar. Do not remove unsound mortar more than 2 inches deep.

b. Remove mortar from stone surfaces within raked-out joints to provide reveals with square backs and to expose stone for contact with pointing mortar. Brush, vacuum, or flush joints to remove dirt and loose debris.

c. Do not spall edges of stone units or widen joints. Replace damaged stone units.

i. Contractor shall detail how they plan to remove existing mortar with hand tools in approved quality control plan.

ii. Quality control plan may outline the use of power tools to remove existing mortar if hand tools fail to remove mortar. Power tool use shall be approved by government representative in writing.

6. Notify Government Representative of unforeseen detrimental conditions, including voids in mortar joints, cracks, loose stone, rotted wood, rusted metal, and other deteriorated items.

7. Pointing with Mortar:

a. Rinse joint surfaces with water to remove dust and mortar particles. Time rinsing application so, at time of pointing, joint surfaces are damp but free of standing water. If rinse water dries, dampen joint surfaces before pointing.

b. Apply pointing mortar first to areas where existing mortar was removed to depths greater than surrounding areas. Apply in layers not greater than 3/8 inch until a uniform depth is formed. Compact each layer thoroughly with hand tools and allow it to become thumbprint hard before applying next layer.

c. After deep areas have been filled to same depth as remaining joints, point joints by placing mortar in layers not greater than 3/8 inch. Fully compact each layer and allow it to become thumbprint hard before applying next layer. Where existing stone has worn or rounded edges, slightly recess finished mortar surface below face of stone to avoid widened joint faces.

Take care not to spread mortar beyond joint edges onto exposed stone surfaces or to feather-edge the mortar.

d. When mortar is thumbprint hard, tool joints to match original appearance of joints. Remove excess mortar from edge of joint by brushing.

e. Cure mortar by maintaining in thoroughly damp condition for at least 72 consecutive hours, including weekends and holidays. Acceptable curing methods include covering with wet burlap and plastic sheeting, periodic hand misting, and periodic mist spraying using system of pipes, mist heads, and timers.

f. Adjust curing methods to ensure that pointing mortar is damp throughout its depth without eroding surface mortar.

g. Remove mortar and repoint any hairline cracking or separation at edge of joint.

8. Where repointing work precedes cleaning of existing stone, allow mortar to harden at least 14 days before beginning cleaning work.

Storage, Handling, and Field Conditions:

Store cementitious materials on elevated platforms, under cover, and in a dry location. Do not use cementitious materials that have become damp. Store accessories to prevent corrosion and accumulation of dirt.

During construction, cover tops of walls/pillars/sign bases with waterproof sheeting at the end of the day’s work. Cover partially completed stone masonry when construction is not in progress. Covers should be extended a minimum of 24” down both sides and held securely in place. Protect base of walls from rain-splashed mud and mortar splatter by coverings spread on the ground and over the wall surface. Protect wall caps, ledges, and projections from mortar droppings. Immediately remove mortar and soil to prevent them from staining the face of stone masonry.

Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Remove and replace stone masonry damaged by frost or freezing conditions. Comply with cold-weather construction requirements contained in ACI (American Concrete Institute) 530.1/ASCE 6/TMS 602.

Perform no work when temperatures are below 40 degrees Fahrenheit or above 90 degrees Fahrenheit, prior to, during, and within 48 hours of temperatures indicated. Protect work from freezing for four days after laying. Perform no work in the rain. Use no admixtures, antifreeze or calcium chloride in mortars. Cover top of wall when work is interrupted by weather or other adverse conditions.

Cold-Weather Cleaning: Use liquid cleaning methods only when air temperature is 40 degrees Fahrenheit and above and will remain so until masonry has dried, but not less than 7 days after completing cleaning.

Hot-Weather Requirements: Comply with hot-weather construction requirements contained in ACI 530.1/ASCE 6/TMS 60

SUPPLEMENTAL SPECIFICATIONS

Agency/Company

Contact Name

Phone

Email

Performance Dates

Contract Name and Contract Number

Dollar Value

Type of work performed

Past Performance and Experience Submittal Form

R6-FS-6300-52 (5/97)

USDA FOREST SERVICE

PACIFIC NORTHWEST REGION

FIRE PROTECTION AND SUPPRESSION

1. Fire Period and Closed Season Specific fire prevention measures are listed below and shall be effective for the period April 1 to October 31 of each year. The Forest Service may change the dates of said period by advance written notice if justified by unusual weather or other conditions. Required tools and equipment shall be kept currently in serviceable condition and immediately available for initial attack on fires.

2. Fire Plan Before starting any operations on the project, the Contractor, Permittee, Licensee, or Purchaser, hereinafter referred to as the "Contractor," shall prepare a fire plan in cooperation with the Contracting Officer providing for the prevention and control of fires in the project area.

The Contractor shall certify compliance with fire protection and suppression requirements before beginning operations during the fire period and closed season, and shall update such certification when operations change.

3. Substitute Measures The Contracting Officer may by written notice authorize substitute measures or equipment or may waive specific requirements during periods of low fire danger.

4. Emergency Measures The Forest Service may require emergency measures, including the necessary shutting down of equipment or portions of operations in the project area during periods of fire emergency created by hazardous climatic conditions.

5. Fire Control The Contractor shall, independently and in cooperation with the Forest Service, take all reasonable action to prevent and suppress fires in the project area. Independent initial action shall be prompt and shall include the use of all personnel and equipment available in the project area.

For the purpose of fighting forest fires on or in the vicinity of the project which are not caused by the Contractor's operations, the Contractor shall place employees and equipment temporarily at the disposal of the Forest Service. Any individual hired by the Forest Service will be employed in accordance with the Inter-agency Pay Plan for Emergency Firefighters.

The Forest Service will compensate the Contractor for equipment rented at fire fighting equipment rates common in the area, or at prior agreed to rates.

6. Compliance with State Forest Laws Listing of specific fire precautionary measures herein is not intended to relieve the Contractor in any way from compliance with the State Fire Laws covering fire prevention and suppression equipment, applicable to operations under this contract, permit or license.

7. Fire Precautions

Specific fire precautionary measures are as follows:

a. Smoking and Open Fires Smoking and fires shall be permitted only at the option of the Contractor. The Contractor shall not allow open fires on the project area without advance permission in writing from Forest Service. Unless restricted by State Law or Federal Regulation, smoking shall be permitted only in such portions of the project area that are free of flammable material. Smokers shall sit down to smoke in such a position that any burning material will fall within a cleared area, and shall extinguish and press out in mineral soil all burning material before leaving the cleared area.

b. Fire Extinguishers and Equipment on Trucks, Tractors, etc.

All power-driven equipment operated by the Contractor on National Forest land, except portable fire pumps, shall be equipped with one fire extinguisher having a UL rating of at least 5 BC, and one "D" handled or long handled round point shovel, size "0" or larger. In addition, each motor patrol, truck and passenger-carrying vehicle shall be equipped with a double-bit axe or Pulaski, 3-1/2 pounds or larger.

Equipment shall be kept in a serviceable condition and shall be readily available.

c. Power Saws Each gasoline power saw operator shall be equipped with a pressurized chemical fire extinguisher of not less than 8-ounce capacity by weight, and one long-handled round point shovel, size "0" or larger. The extinguisher shall be kept in possession of the saw operator at all times. The shovel shall be accessible to the operator within 1 minute.

d. Extinguishers One refill for each type or one extra extinguisher sufficient to replace each size extinguisher required on equipment shall be safely stored in the fire tool box or other agreed upon place on the project area that is protected and readily available.

(1) Equipped with a turbine-driven exhaust supercharger such as the turbocharger.

There shall be no exhaust bypass

(2) A passenger-carrying vehicle or light truck, or medium truck up to 40,000 GVW, used on roads and equipped with a factory-designedmuffler complete with baffles and an exhaust system in good working condition.

(3) A heavy duty truck, such as a dump or log truck, or other vehicleused for commercial hauling, used only on roads and equipped with a factory designed muffler and with a vertical stack exhaust system extending above the cab. Exhaust equipment described in this subsection, including spark arresters and mufflers, shall be properly installed and constantly maintained in serviceable condition.

f. Emergency Fire Precautions

The Contractor shall restrict operations in accordance with the Industrial Fire Precaution Levels listed below. The Forest Service may change the Industrial Fire Precaution Levels to other values upon revision of the National Fire Danger Rating System and may change the specific Industrial Fire Precaution Levels when such changes are necessary for the protection of the National Forest. When sent to the Contractor, the revised Industrial Fire Precaution Levels will supersede the attached levels

e. Spark Arresters and Mufflers

Each internal combustion engine shall be equipped with a spark arrester meeting either

(1) USDA Forest Service Standard 5100-1a, or (2) appropriate Society of Automotive Engineers (SAE) recommended practice J335(b) and J350(a) as now or hereafter amended unless it is:

INDUSTRIAL FIRE PRECAUTIONS SCHEDULE

INDUSTRIAL FIRE PRECAUTION (IFPL)

LEVEL

I. Closed season - Fire precaution requirements are in effect. A fire watch/security is required at this and all higher levels unless otherwise waived.

II. Partial hootowl - The following may operate only between the hours of 8 p.m. and 1 p.m., local time:

a. power saws, except at loading sites;

b. cable yarding;

c. blasting;

d. welding or cutting of metal.

III. Partial shutdown - The following shall be prohibited except as indicated:

Cable yarding - except that gravity operated logging systems employing non-motorized carriages may be operated between the hours of 8 p.m. and 1 p.m., local time, when all block and moving lines, except the line between the carriage and the chokers, are suspended 10 feet above the ground;

Power saws - except power saws may be used at loading sites and on tractor/skidder operations between the hours of 8 p.m. and 1 p.m., local time.

In addition, the following are permitted between the hours of 8 p.m. and 1 p.m., local time:

a. tractor/skidder operations;

b. mechanized loading and hauling of any product or material;

c. blasting;

d. welding or cutting of metal;

e. any other spark-emitting operation not specifically mentioned.

IV. General shutdown - All operations are prohibited.

The following definitions shall apply to these Industrial Fire Precaution Levels:

Cable yarding systems: A yarding system employing cables and winches in a fixed position.

Closed season (Fire Precautionary Period): That season of the year when a fire hazard exists as declared by the responsible agency official.

Contracting Officer: The person executing the contract, permit or license on behalf of the Government and includes that person's designated representative, acting within the limits of their authority or the duly appointed successor to the individuals.

Loading sites/woods site/project area: A place where any product or material (including but not limited to logs, firewood, slash, soil, rock, poles, posts, etc.) is placed in or upon a truck or other vehicle

Low hazard area: Means any area where the responsible agency representative (WDNR, ORF, BIA, BLM) determines the combination of elements reduces the probability of fire starting and/or spreading.

Tractor/skidder operations: include a harvesting operation, or portion of a harvesting operation, where tractors, skidders, or other harvesting equipment capable of constructing fireline, are actively yarding forest products and can quickly reach and effectively attack a fire start.

Waivers, written in advance, may be used for any and all activities. Activities for which waivers may be issued include, but are not limited to:

a. mechanized loading and hauling;

b. road maintenance such as sprinkling, graveling, grading and paving;

c. cable yarding using gravity systems or suspended lines and blocks, or other yarding systems where extra prevention measures will significantly reduce the risk of fire;

d. powers saws at loading sites or in felling and bucking where extra prevention measures will significantly reduce the risk of fire;

e. maintenance of equipment (other than metal cutting and welding) or improvements such as structures, fences and powerlines.

Such waiver, or substitute precautions will prescribe measures to be taken by the Contractor to reduce the risk of ignition, and/or the spread of fire. The Contracting Officer shall consider site specific weather factors, fuel conditions, and specific operations that result in less risk of fire ignition and/or spread than contemplated when precaution level was predicted.

Consideration shall also be given to measures that reduce the precaution levels above. The Contractor shall assure that all conditions of such waivers or substitute precautions are met.

The Contractor shall obtain the predicted Industrial Fire Precaution Level daily, prior to the start of work, from the appropriate Ranger District headquarters. If predictions made after 6:00 p.m., local time, are significantly different than the original prediction, the Forest Service will inform the Contractor when changes in restrictions or industrial precautions are made.

The IFPL system does not apply on lands protected by ODF east of the summit of the Cascades.

NOTE:

Where hauling involves transit through more than one shutdown/regulated use area, the precaution level at the woods loading site shall govern the level of haul restriction, unless otherwise prohibited by other than industrial precaution level system.

8. Fire Tools The Contractor shall furnish serviceable fire fighting tools in a readily accessible fire tool box or compartment of sound construction with a hinged lid and hasp so arranged that the box can be secured or sealed. The box shall be red and marked "Fire Tools" in letters one inch high. It shall contain a minimum of:

a. 2 axes or Pulaskis with a 32-inch handle;

b. 3 adze eye hoes. One Pulaski may be substituted for 1 adze eye hoe;

c. 3 long-handled, round point shovels, size "0" or larger.

9. Fire Security When the Industrial Fire Precautions Level is "I" or higher, unless a waiver is granted, the Contractor shall designate a person who shall perform fire security services listed below on the project area and vicinity. The designated person shall be capable of operating the Contractor's communications and fire fighting equipment specified in the contract, excluding helicopters, and of directing the activities of the Contractor's personnel on forest fires. In lieu of having the designated person perform the required supervisory duties, the Contractor may provide another person meeting the qualifications stated above to direct the activities of Contractor's personnel and equipment during all fire fighting activities.

Services described shall be for at least 1 hour from the time the Contractor's operations are shut down. For the purposes of this provision, personnel servicing equipment, and their vehicles, who are not engaged in cutting or welding metal are excluded.

Fire security services shall consist of moving throughout the operation area or areas constantly looking, reporting, and taking suppression action on any fires detected. Where possible, the designated person shall observe inaccessible portions of helicopter operating areas from vantage points within or adjacent to project area.

10. Blasting

Whenever the Industrial Fire Precaution Level is "II" or greater, a fire security person equipped with a long-handled, round point, No. "0" or larger, shovel, and a five-gallon backpack pump can filled with water will stay at location of blast for 1 hour after blasting is done. Blasting may be suspended by Forest Service in writing, in an area of high rate of spread and resistance to control.

Fuses shall not be used for blasting. Explosive cords shall not be used without written permission of Forest Service, which may specify conditions under which such explosives may be used and precautions to be taken.

R6-FS-6300-54 (5/89)

USDA FOREST SERVICE

PACIFIC NORTHWEST REGION

FIRE PROTECTION AND SUPPRESSION

The contractor shall provide adequate two-way communication facilities to report a fire to Forest Service within 15 minutes of detection. FCC Regulations prohibit commercial use of Citizen Band (CB) radios. (CB's are not considered adequate two-way communications).

Such communications shall be operable during periods of operation of power-driven equipment, including the time fire security is required. Fire Period and Closed Season

12. Additional Fire Precationary Measure 2 - Communications

R6-FS-6300-53_FireProtection_TankTruck.pdf

Additional Fire Precautionary Measure 1 - Tank Truck

R6-FS-6300-54_FireProtection_Communications.pdf

Additional Fire Precautionary Measure 2 - Communications

Davis Bacon Act Conformance Information

Wage Determination Notice – Conformance Required for Missing Labor Categories

The wage determination attached to this solicitation does not contain all labor classifications anticipated for this project. Contractors may not assign employees to an alternate labor category on the wage determination when the required classification is missing.

For example, if a carpenter is required to install a door and “carpenter” is not listed in the applicable wage determination, the employee may not be categorized or paid as a general laborer.

In such cases, a conformance request must be submitted to the Department of Labor (DOL) after contract award for each missing classification. Employees must be paid in accordance with DOL’s final determination. Additional information on the conformance process may be found at:

https://sam.gov/wage-determinations/resources/dba-conformances

After reviewing the wage determinations, the Government anticipates that the following labor category may be required for this work but is missing:

Wallowa County Highway

Stone Mason

The following information is provided solely for the Contractor’s awareness and reflects the Government’s best estimate of potential conformed rates. These estimates are not binding, and the Contractor is responsible for paying employees according to DOL’s approved conformance:

Estimated Skilled Rate (Wallowa County Highway):

Base: $55.79

Fringe: $15.81

If, after reviewing the Schedule of Items and Statement of Work, additional required labor categories are missing from the wage determination, please notify the Contracting Officer.

https://sam.gov/wage-determinations/resources/dba-conformances

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