S-10-0308 Attachment 8 Scope of Work - Revised.docx

COLUMBINE DEFERRED MAINTENANCE, ACCESSIBILITY, AND ELECTRICAL UPGRADES

STATEMENT of WORK Coronado National Forest December 30, 2009 tcassell@fs.fed.us and bpayne@fs.fed.us

Purpose of Project: Columbine Work Station is located approximately 35 miles southwest of Safford, on the top of the Pinaleno Mountains (Township 08 South, Range 24 East, Sections 29 & 32) on the Safford Ranger District of the Coronado National Forest. Columbine Work Station is made up of nine buildings consisting of a visitor’s center, four cabins, a workshop, a public vault toilet, a storage shed, a shower house, and a generator house. The work station has several uses. About half of the year the Visitor’s Center is open to the public and provides information about the forest. A paved parking lot provides parking for the Visitor’s Center. The Visitor’s Center is staffed by volunteers that stay in Cabin 1. The site also serves as a headquarters for fire crews during fire season. Fire crews stay in Cabins 2-4 and use the storage shed and workshop for their operations. Biologists and other Forest Service employees occasionally stay in the cabins as needed. The shower house contains two showers, two toilets, and laundry facilities, and is used by all the site occupants. The Visitor’s Center and Workshop are listed on the National Register of Historic Buildings. All of the buildings on the site are in need of miscellaneous repairs and upgrades.

Planned Work: The proposed work on Columbine Work Station is broken down by building and outlined below.

Visitors Center - 980 SF

1. Replace dysfunctional LPG furnace with new furnace: The existing gas powered furnace in the Visitor’s Center is old and not functioning. The furnace shall be removed and discarded. The Contractor shall supply and install a new 120,000 BTU gas furnace with a high elevation kit. The available space in the heater closet for the new furnace is approximately 2.5’ wide by 3’ tall. A new thermostat apparatus shall be installed to accompany the new furnace. The thermostat shall be a Honeywell YRTH7500D1009 Vision Conventional 7-Day Programmable or approved equal. The furnace and thermostat shall be installed per manufacturer’s recommendations. The existing heater is vented through the chimney.

2. Repair roof leak and damaged ceiling: The Visitor’s Center roof is leaking and is causing damage to the ceiling. The source of the leak is unknown but appears to possibly be at the base of the existing chimney. The Contractor shall determine the source of the leak and repair the roof and ceiling (texture and paint). The Contractor shall also repair the poorly constructed chimney support on the roof.

3. Replace unstable wooden back porch and steps: The back porch and steps on the Visitor’s Center are old and structurally unsound. The entire porch shall be removed and properly disposed of. A new porch shall be constructed to the same design and dimensions as the existing porch. The structural support members of the porch shall be composed of structural grade lumber. The deck and rails shall be constructed of Trex or an approved equal material. The deck area of the porch measures 7.0’ x 5.2’ and is approximately 2’ above the surrounding grade.

4. Replace dysfunctional water plumbing: The plumbing that serves the Visitor’s Center is not functional and shall be replaced from the service connection at the south end of the building to the toilet and sink in the southwest corner of the building and to the sink in the southeast corner of the building. The pipes to be replaced are located in a crawl space below the Visitor’s Center floor. The pipes are to be replaced with 1” PEX Pipe. All pipe shall be properly insulated to prevent freezing. All pipe shall be installed to allow plumbing to be completely drained for winterization.

5. Remove the existing tile flooring in kitchen and replace with commercial grade VCT: The existing vinyl tile floor in the kitchen area of the Visitor’s Center is deteriorating. The existing tile shall be removed and disposed of and replaced with new VCT tile. The existing tile contains Asbestos and shall be removed and disposed of appropriately. Overlay existing floor with new VCT flooring. The area of flooring to be replaced is approximately 100 150 square feet. Access to the crawl space under the building is provided through a small hatch in the kitchen floor. This hatch shall be enlarged to 32” x 30”. A 48” x 30” piece of drywall shall also be replaced in the kitchen. Approximately 60LF of vinyl cove shall also be replaced along the base of the wall to closely resemble existing.

6. Replace existing electric water heater with new on-demand LPG water heater: The existing water heater in the Visitor’s Center kitchen shall be removed and shall remain the property of the Forest Service. Install per manufactruer’s recommendations a new Rheem 53 Tankless Series 145,000 BTU indoor direct vent on-demand gas water heater or approved equal in the furnace closet. The water heater shall also include an altitude chip for the highest elevation possible. Electrical service, braded steel flex lines, and brass valves shall be installed to facilitate the new water heater. Install plumbing and venting per code and per manufacturer’s recommendations.

Visitor’s Center Parking

1. Construct new ABA van accessible parking stall: The existing Visitor’s Center parking lot does not meet ABA accessibility standards due to excessive grade. A new ABA van accessible parking stall shall be constructed on the north side of the existing parking area. The area in which the parking stall shall be constructed is currently undeveloped and shall to be cleared, grubbed and graded in preparation for the new parking stall. Several small pine and fir trees shall be removed. The Government Contractor shall stake the parking stall layout and flag the trees designated for removal for approval. The Government will cut and buck the trees required for removal but the Contractor will be responsible for removal from the site. Construction of the new parking space will require the demolition of approximately 42 linear feet of curb and gutter. The parking space shall be constructed of 2 inches of asphalt over 4 inches of aggregate base and will cover approximately 400 square feet. The parking stall shall include an 11’ wide parking area and a 5’ wide access aisle and shall be 19’ long. The grade within the new parking stall shall not exceed 2% in any direction. Approximately 100 linear feet of new concrete curb and gutter shall be constructed around the perimeter of the new parking stall. The parking stall shall be painted in accordance with ABA standards. The contractor shall install a van accessible parking sign in the location as directed. The existing parking lot immediately adjacent to the Visitor’s Center shall be restriped. In total, the striping will consist of one handicap symbol and approximately 150 linear feet of 4” white stripe.

2. Reconstruct sidewalk from parking lot to Visitor’s Center to make ABA accessible: In addition to the new ABA accessible parking stall, the sidewalk between the parking area and the Visitor’s Center requires modification to provide ABA accessibility. Approximately 400 square feet of existing sidewalk shall be demolished and disposed of. Approximately 650 square feet of new sidewalk shall be constructed including a new accessible ramp adjacent to the new parking stall. The existing interpretive sign shall be moved to a location designated by the Government in the close proximity.

Vault Toilet – 20 SF

1. Demolish outhouse adjacent to shower building and construct a new single unit vault toilet: During winter months when water is shut off to Columbine Work Station, the staff uses a small single unit vault toilet adjacent to the shower building. The toilet vault shall be completely pumped and the outhouse and vault shall be demolished and disposed of. The existing toilet shall be removed and disposed of and the hole shall be filled with native excavation material. A new ADA accessible single unit vault toilet shall be constructed in a similar adjacent location to the existing outhouse. The Government will stake the exact location for the new vault toilet. The new toilet building shall be a Romtec SST Traditional Style Model 1002 including the designated concrete pad.

Shower Building – 220 SF

2. Remove interior floor and walls to shower house and reconstruct one accessible toilet and shower room and one non-accessible toilet and shower room: The existing shower building at Columbine Work Station is 12’ wide by 20’ long. Both the interior and exterior walls are constructed of 8” block. The building houses two showers, two toilets with sinks, and laundry facilities. The interior walls, toilets, sinks, showers, and concrete floors are to be demolished and disposed of. New building sewer and water plumbing shall be installed. A new concrete floor shall be constructed. The new floor shall slope to a new centralized floor drain. The floor shall be sealed with an epoxy floor treatment. New wood framed interior walls shall be constructed using standard 2x4 and 2x6 construction and cement based wall board to form one accessible toilet and shower room and one non-accessible toilet and shower room. The existing ceiling shall be removed and replaced with drywall, tape and texture. The interior face of the exterior block walls shall be furred out using standard 2x4 and 2x6 construction. Wall surfaces shall be finished with cement board, textured and painted white. Insulation shall be installed in the furred out walls and ceilings (R 13 and R 19). Two 3.0’ x 3.0’ shower inserts, two low-flow toilets, and two ADA accessible sinks and associated appurtenances shall be installed. Grab bars shall be installed adjacent to both toilets. Two new metal 3’0” interior doors shall be installed. The existing windows shall be removed and blocked in.

Cabin 1 – 230 SF

1. Remove existing carpet flooring and replace with commercial VCT epoxy flooring: The existing carpet shall be disposed of. New commercial vinyl epoxy flooring shall be installed. The floor area of Cabin 1 is approximately 230 square feet.

Cabin 2 – 315 SF

1. Remove existing carpet flooring and replace with commercial VCT epoxy flooring: The existing carpet shall be removed and disposed of. New commercial vinyl epoxy flooring shall be installed. The floor area of Cabin 2 is approximately 315 square feet.

2. Replace service panel, electrical wiring, light fixtures and receptacles: A new 100 amp service panel shall be installed on the building exterior. All existing electrical wiring, light fixtures and receptacles shall be removed and replaced to meet NEC 2008 Code. All new fixtures shall closely resemble existing fixtures and shall be approved by the Government. Two (2) new approved 48” T8 general purpose industrial fluorescent light fixtures shall be installed. An approved smoke/carbon monoxide detector shall be hard-wired into the cabin. Where interior walls are damaged during electrical upgrades the damage shall repaired to match existing walls including texture (no paint). New double flood lights shall be installed on the building exterior.

3. Add insulation to walls and ceilings: Approximately 875 square feet of R-13 and R-19 insulation shall be added to the exterior walls and the ceiling.

4. Replace Overlay all exterior siding: All existing siding and fascia shall be replaced with an approved fiber cement board and batten siding to match existing look and color. The old siding shall be removed and disposed of. The existing vertical batten boards shall be removed. New approved fiber cement board siding shall be installed horizontally over the existing siding to match the appearance of the Visitor’s Center. The exterior fascia shall be wrapped in an approved metal. Approximately 575 square feet of new siding shall be installed.

5. Replace all exposed plumbing in the walls: All exposed plumbing in the walls of the cabins shall be removed and replaced with ¾” Pex pipe. Pipe shall be installed in such a manner that it will drain completely for winterization. Make all required connections to exterior piping, interior water heaters, faucets, etc.

6. Replace all interior drywall: The drywall on the interior walls and ceilings shall be removed and replaced including tape, texture and paint. The existing cabinets will need to be removed and replaced to complete this work. An approved tile shall be placed on the wall behind the gas stove and wood stove covering 4’ x 9’ of the wall.

Cabin 3 – 410 SF

1. Remove existing carpet flooring and replace with commercial VCT: The existing carpet shall be removed and disposed of. New commercial vinyl flooring shall be installed. The floor area of Cabin 3 is approximately 410 square feet.

2. Replace service panel, electrical wiring, light fixtures and receptacles: A new 100 amp service panel shall be installed on the building exterior. All existing electrical wiring, light fixtures and receptacles shall be removed and replaced to meet NEC 2008 Code. All new fixtures shall closely resemble existing fixtures and shall be approved by the Government. Two (2) new approved 48” T8 general purpose industrial fluorescent light fixtures shall be installed. An approved smoke/carbon monoxide detector shall be hard-wired into the cabin. An approved 15 amp baseboard heater shall be installed. One additional receptacle shall be added in both the kitchen and the bedroom. Where interior walls are damaged during electrical upgrades the damage shall repaired to match existing walls including texture (no paint). New double flood lights shall be installed on the building exterior.

3. Add insulation to walls and ceilings: Approximately 1,115 square feet of R-13 and R-19 insulation shall be added to the exterior walls and the ceiling.

4. Replace Overlay all exterior siding: All existing siding and fascia shall be replaced with an approved fiber cement board and batten siding to match existing look and color. The old siding shall be removed and disposed of. The existing vertical batten boards shall be removed. New approved fiber cement board siding shall be installed horizontally over the existing siding to match the appearance of the Visitor’s Center. Approximately 750 square feet of new siding shall be installed. The exterior fascia shall be wrapped in an approved metal.

5. Replace all exposed plumbing in the walls: All exposed plumbing in the walls of the cabins shall be removed and replaced with ¾” Pex pipe. Pipe shall be installed in such a manner that it will drain completely for winterization. Make all required connections to exterior piping, interior water heaters, faucets, etc.

6. Replace all interior drywall: The drywall on the interior walls and ceilings shall be removed and replaced including tape, texture and paint. The existing cabinets will need to be removed and replaced to complete this work. An approved tile shall be placed on the wall behind the gas stove and wood stove covering 5’ x 4’ of the wall.

Workshop – 1,275 SF

1. Upgrade electrical facilities to meet current electrical code: Remove existing service panels (2) and install one new 200 amp service panel. Install one new main disconnect. Remove existing electrical wires and receptacles and replace per NEC 2008 Code including GFCI protection. Remove existing light fixtures and replace with new approved 96” T8 General Purpose Industrial Fluorescent Light Fixtures. Replace exterior light fixtures with similar type and quality. Five (5) existing receptacles shall be removed and replaced with double duplex GFCI protected receptacles on two (2) 20 amp circuits. The receptacle used for the refrigerator shall be on its own 20 amp circuit and shall not be GFCI protected. The exposed Romex inside the building shall be placed in conduit. The existing interior lights shall be removed and replaced with nine (9) new approved 48” T8 general purpose industrial fluorescent light fixtures. The exterior lights shall be removed and replaced with new double flood lights. All existing light switches shall be replaced.

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