contract_specifications.pdf

00150 - 1

SUMMARY OF WORK

LIST OF SPECIFICATIONS

SECTION 00150

DIVISION 1 – GENERAL REQUIREMENTS

SECTION 01010 - SUMMARY OF WORK 4

PAGES

SECTION 01025 - DEFINITION OF BID ITEMS AND MEASUREMENT AND PAYMENT 6

SECTION 01150 - ARCHEOLOGICAL PROTECTION 2

SECTION 01550 - GOVERNMENT-FURNISHED MATERIALS 2

DIVISION 2 – SITE WORK

SECTION 02120 – REMOVAL & DISPOSAL OF EXISTING VAULT TOILET STRUCTURE 2

SECTION 02222 – STRUCTURAL EXCAVATION, BACKFILL & COMPACTION 2

SECTION 06100 - ROUGH CARPENTRY 4

DIVISION 6 – WOOD AND PLASTICS

SECTION 06105 - MISCELLANEOUS CARPENTRY 5

SECTION 06200 - FINISH CARPENTRY 4

SECTION 09912- PAINTING, STAINING, GRIT BLASTING & CHINKING 3

DIVISION 9 – FINISHES

DIVISION 10 – SPECILITIES

SECTION 10301 – PREFABRICATED WOOD STOVES 1

SECTION 10311 – MANUFACTURED WOOD STOVE CHIMNEYS 1

DIVISION 13 – SPECIAL CONSTRUCTION

SECTION 13126 – LOG CONSTRUCTION 2

01010 - 1

SECTION 01010

SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. Work for this project consists of roof replacement on four historic Forest Service log cabins. The existing metal shingles shall be removed and retained for reinstallation after underlayment is replaced. Areas of damaged wood sheeting and fascia shall be replaced with “like in-kind “replacement. Caution shall be taken not to expose any fasteners on the underside of the sheeting. The Contractor shall use “Grace Ultra” as the first layer of underlayment and “Tamko Nail Fast” as the second layer of underlayment. The seams of the two layers of underlayment shall not coincide with each other. After the underlayment is inspected by the Forest Service, re-installation of the metal shingles can occur. Missing shingles shall be replaced by the Contractor.

The Contractor shall fabricate shingles from “like in-kind” material. The shingles shall have similar dimensions, shape and color to match the existing shingles. The shingles shall be attached using ringed roofing nails with gaskets.

B. The Second phase of this project consists of log replacement on four Forest Service log cabins with “like in-kind” materials. The Contractor shall replace decayed logs as identified by the COR. Prior to commencing work, the Contractor shall submit a procedure to the COR for log replacement. The log replacement procedure shall include temporary bracing of the existing structure while log is being replaced, replacement procedure of rotten log with “like in-kind” materials and treatment method to preserve log.

C. The third phase of this project consists of the replacement of five front porches on

USDA Forest Service mining cabins. The front porches shall have the exact appearance as the existing and shall be designed with 85 pounds per square foot loading. The design and materials of construction shall be submitted prior to construction to the COR for approval. All exposed wood shall be treated using “Bora- Care” from www.prginc.com.

D. The fourth phase of this project is to grit blast with corn media and refinish all exterior logs of the four Crescent Mining Cabins and the Hutchinson-Barnett Cabin.

The logs shall be refinished “like in-kind “ of the orginal finish. Replace damaged chinking on all cabins with “like in-kind” products. The procedure and materials shall be submitted prior to construction to the COR for approval.

E. The fifth phase of this project is to demolish an existing toilet building & vault, install contractor furnished concrete toilet vault, and to construct a new stick-built toilet on top of the new vault in accordance with the drawings and specifications. The http://www.prginc.com/�

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Contractor shall be responsible for removal all waste materials from Government lands and to dispose of them properly.

F. When evaluating proposals strong consideration will be given to the amount of experience a contractor has in fields such as carpentry, roofing, and historic renovation. Work on Historic facilities will be in the context of:

1. Preservation:

2.

focuses on the maintenance and repair of existing historic materials and retention of a property's form as it has evolved over time, including protection and stabilization.

Rehabilitation: focuses on the

1.2 PROJECT LOCATIONS

need to alter or add to a historic property to meet continuing or changing uses while retaining the property's historic character.

A. The Crescent Mining Camp project site is located in the Leadville Ranger District within Chaffee County. The Contractor can access this site by taking U.S. Highway 24 south from Leadville, Colorado to Chaffee County Road 390; follow Chaffee County Road 390 approximately 9 miles to site. The mining camp is located on the south side of the county road.

B. The Hutchinson-Barnett Cabin is located in the Salida Ranger District within Chaffee County. The Contractor can access this site from Poncha Springs, Colorado, travel south on U.S. Hwy 285 for 5 miles; turn right on Chaffee County Road 200 and travel for 3 miles to NFSR 202; turn right and travel for 0.8 miles to NFSR 200; turn right and travel for 8 miles to NFSR 200.C; turn right and travel for 0.2 miles.

C. The Woods Cabin is located in the Salida Ranger District within Chaffee County. The Contractor can access this site from Poncha Springs, S. on Hwy 285 for 5 miles; Rt on NFSR 200 for 3 miles: Rt on NFSR 202 for 0.8 miles; Rt on NFSR 200 for 8 miles;

Rt on NFSR 200.C for 0.2 miles.

1.3 GENERAL SITE CONDITIONS AND WEATHER

A. The elevation of both sites is approximately 9,300 feet above mean sea level. These sites experience heavy snowfall and extremely cold temperatures, with snow on the ground typically from mid-September through May.

B. In-depth soil surveys have not been performed; however, rocks at the ground surface are evident throughout the area. The Contractor should expect to encounter such rock during excavation and grubbing operations. Blasting of rocks will not be permitted without prior approval by the COR.

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C. In-depth water table surveys have not been performed; however, if water is encountered during excavation, the Contractor shall perform adequate dewatering to keep the excavation free from water and dispose of the water without damage to property.

1.4 USE OF PREMISES

A. General: Contractor shall have full use of premises for construction operations, including use of Project site, during construction period. Contractor's use of premises is limited only by the Government's right to perform work or to retain other contractors on portions of the project.

B. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public and employees.

C. Confine storage of materials to areas as approved by the CO.

D. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

E. Preservation of Natural Features: Confines all operations to work limits of the project.

Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval.

Consult with CO and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

F. Existing Utilities: Notify CO and utility companies of proposed locations and times for excavation.

1. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

2. Interruption of Existing Utility Service: Notify CO, 48 hours in advance of any interruption of existing utilities.

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1.5 MEALS AND LODGING

A. Meals and lodging are commercially available in the Town of Leadville within 30 miles of the Crescent Mining Campe construction site, and within 20 miles of the Hutchinson-Barnett site, in the Poncha Springs/Salida area. Meals or lodging are not available at Forest Service facilities.

1.6 CAMPING

A. With approval by the Leadville Ranger District, National Forest Service lands may be used by the Contractor to have one fully contained recreation vehicle which may remain at this site for security.

1.7 CONSTRUCTION SEQUENCE

A. There is no specified construction sequence or season for this project.

B. Depending on conditions, normal fire restrictions may apply to activities associated with this project.

1.8 FIELD VERIFICATION

A. Field verify all new and existing dimensions affecting the work of this contract before ordering products.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

END OF SECTION 01100

01025-1

DEFINITION OF BID ITEMS &

MEASUREMENT AND PAYMENT

SECTION 01025

DEFINITION OF BID ITEMS

AND

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general; what is and what is not included in a bid item; the limits or cut-off points where one bid item ends and another begins; and method of measurements and basis of payment for work items listed in the Bid Item Schedule.

B. Work:

1. Furnishing all labor, materials, equipment, and other incidentals necessary to successfully complete the project or any portion of it, and carrying out all duties and obligations imposed by the contract on the Contractor.

C. Payment:

1. For each individual item listed here and in the Schedule of Items, payment shall be full compensation for all work related to the particular item in accordance with these specifications, as shown on the drawings, and as staked in the field.

2. Measurement and payment for contract work shall be made only for and under those pay items included in the Schedule of Items. All other work and materials shall be considered incidental or as included in the payment for items shown.

1.2 DETERMINATION OF QUANTITIES

A. The contractor shall perform, or cause to be performed, all measurement of quantities of materials incorporated into the work processes that are to be measured under the provisions of the contract.

B. Quantity Measurements:

1. The Contractor shall make all measurements for computation of quantities for all work items except those specified for payment by Designed Quantity (DQ) or Lump Sum Quantity (LSQ).

2. The contractor shall compute the quantities for periodic progress payments; the Contracting Officer shall compute the quantities for the final payment based on measurements taken by the Contractor.

3. All Contractor measurements are subject to verification.

4. The Contractor shall submit all field notes, calculation sheets, and other data used to determine quantities.

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MEASUREMENT AND PAYMENT

5. The Contractor shall certify in writing as to the accuracy of the measurements and computations submitted.

C. The following measurements and calculations are used to determine contract quantities.

1. For individual construction items, longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for geotextiles, netting and erosion control blankets shall be along slope lines.

2. The average end area method shall be used to compute volumes of excavation or embankment. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three dimensional methods.

3. Structures shall be measured according to neat lines shown on the drawings or as altered by the CO, in writing, to fit field conditions.

4. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, and underdrains, measurements shall be made parallel to the base or foundation upon which the structures are placed. Pipes shall be measured along center of invert.

5. For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

6. For standard manufactured items--such as fence, wire, plates, rolled shapes, pipe conduits--identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

1.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

B. Each

C.

: One complete unit, which may consist of one or more parts.

Linear Foot

1.4 DEFINITION OF BID ITEMS

: Linear feet measured horizontally.

A. Definition of Bid Item No. 1

1. Description: Crescent Mining Camp Building # 8103, Remove & replace rotten logs in exterior walls of building. Treat new logs with preservative. Item includes all temporary supports and equipment required to accomplish replacement.

2. Measurement and payment: Actual Quantity; payment per each log replaced.

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MEASUREMENT AND PAYMENT

B. Definition of Bid Item No. 2

1. Description: Crescent Mining Camp Building # 8104, Remove & replace rotten logs in exterior walls of building. Treat new logs with preservative. Item includes all temporary supports and equipment required to accomplish replacement.

2. Measurement and payment: Actual Quantity; payment per each log replaced.

C. Definition of Bid Item No. 3

1. Description: Crescent Mining Camp Building # 8105, Remove & replace rotten logs in exterior walls of building. Treat new logs with preservative. Item includes all temporary supports and equipment required to accomplish replacement.

2. Measurement and payment: Actual Quantity; payment per each log replaced.

D. Definition of Bid Item No. 4

1. Description: Crescent Mining Camp Building # 8107, Remove & replace rotten logs in exterior walls of building. Treat new logs with preservative. Item includes all temporary supports and equipment required to accomplish replacement.

2. Measurements and Payment: Actual Quantity; payment per each log replaced.

E. Definition of Bid Item No. 5

1. Description: Hutchinson-Barnett Cabin Building #9218, Remove & replace rotten logs in exterior walls of building. Treat new logs with preservative. Item includes all temporary supports and equipment required to accomplish replacement.

2. Measurement and payment: Actual Quantity; payment per each log replaced.

F. Definition of Bid Item No. 6

1. Description: Crescent Mining Camp Building #8103, Remove existing metals shingles and replaces underlayment and reinstalls existing shingles. Pay items includes all ringed roofing nails with gaskets, replacement wood products “like in-kind” for roof sheeting and fascia, Paint / stain to match exterior. Item includes all equipment required to accomplish replacement.

2. Measurement and payment: Actual quantity; payment per 100 square feet of roofing complete (1SQ).

G. Definition of Bid Item No. 7

1. Description: Crescent Mining Camp Building #8104, Remove existing metals shingles and replaces underlayment and reinstalls existing shingles. Pay items includes all ringed roofing nails with gaskets, replacement wood products “like in-kind” for roof sheeting and fascia, Paint / stain to match exterior. Item includes all equipment required to accomplish replacement.

2. Measurement and payment: Actual quantity; payment per 100 square feet of roofing complete (1SQ).

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MEASUREMENT AND PAYMENT

H. Definition of Bid Item No. 8

1. Description: Crescent Mining Camp Building #8105, Remove existing metals shingles and replaces underlayment and reinstalls existing shingles. Pay items includes all ringed roofing nails with gaskets, replacement wood products “like in-kind” for roof sheeting and fascia, Paint / stain to match exterior. Item includes all equipment required to accomplish replacement.

2. Measurement and payment: Actual quantity; payment per 100 square feet of roofing complete (1SQ).

I. Definition of Bid Item No. 9

1. Description: Crescent Mining Camp Building #8107, Remove existing metals shingles and replaces underlayment and reinstalls existing shingles. Pay items includes all ringed roofing nails with gaskets, replacement wood products “like in-kind” for roof sheeting and fascia, Paint / stain to match exterior. Item includes all equipment required to accomplish replacement.

2. Measurement and payment: Actual quantity; payment per 100 square feet of roofing complete (1SQ).

J. Definition of Bid Item No. 10

1. Description: Crescent Mining Camp Building #8103, Remove and replace existing front porch. Pay item includes all material, fasteners, foundation and exterior finishes. Item includes all equipment to accomplish replacement.

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

K. Definition of Bid Item No. 11

1. Description: Crescent Mining Camp Building #8104, Remove and replace existing front porch. Pay item includes all material, fasteners, foundation and exterior finishes. Item includes all equipment to accomplish replacement.

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

L. Definition of Bid Item No. 12

1. Description: Crescent Mining Camp Building #8105, Remove and replace existing front porch. Pay item includes all material, fasteners, foundation and exterior finishes. Item includes all equipment to accomplish replacement.

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

M. Definition of Bid Item No. 13

1. Description: Crescent Mining Camp Building #8107, Remove and replace existing front porch. Pay item includes all material, fasteners, foundation and exterior finishes. Item includes all equipment to accomplish replacement.

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

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MEASUREMENT AND PAYMENT

N. Definition of Bid Item No. 14

1. Description: Hutchinson-Barnett Cabin Building # 9218, Remove and replace existing front porch. Pay item includes all material, fasteners, foundation and exterior finishes. Item includes all equipment to accomplish replacement.

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest service.

O. Definition of Bid Item No. 15

1. Description: Cabin exterior refinishing on buildings 8103, 8104, 8105, 8107, 9218. Pay item includes all materials and equipment to corn blast exterior of dwelling and apply exterior stain finish. >

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

P. Definition of Bid Item No. 16

1. Description: Cabin exterior chinking on buildings 8103, 8104, 8105, 8107, 9218. Pay item includes removal and replacement of loose and damage chinking. Site clean-up and disposal.

2. Measurement and payment: Actual Quantity, Payment shall be for linear feet of chinking replaced.

Q. Definition of Bid Item No. 17

1. Description: Install GFP wood stove per manufacture requirements in buildings

8103, 8104, 8105, 8107, 9218. Pay Items include stainless steel flue pipe, roof flashing, floor and wall protection if required and installation. Remove existing flues and stoves. All removed property shall be property of the contractor.

2. Measurement and payment: Actual Quantity, Payment of item will be awarded at time of acceptance by the Forest Service.

R. Definition of Bid Item No. 18

1. Description: Mobilization and Bonding for pay items 1 thru 17.

2. Measurement and payment: Lump Sum, Payment of item will be awarded once for entire scope of work to be performed by contractor.

S. Additive Bid Item No. 1

1. Description: Remove existing pit toilet at the Woods Cabin, Install Contractor furnished LDPE lined concrete vault and floor. Construct wood framed toilet on concrete vault. Item includes all material and equipment and mobilization to furnish a completed toilet structure.

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

T. Additive Bid Item No. 2

1. Description: Remove existing pit toilet at the Woods Cabin, Install Contractor furnished LDPE lined concrete vault and floor. Construct wood framed toilet on concrete vault. Item includes all material and equipment and mobilization to furnish a completed toilet structure.

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MEASUREMENT AND PAYMENT

2. Measurement and payment: Lump Sum, Payment of item will be awarded at time of acceptance by the Forest Service.

PART 2 - METHOD OF MEASUREMENT

2.1 GENERAL

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

B. ACTUAL QUANTITIES (AQ)

1. These estimated quantities which are determined from actual measurements of completed work.

C. LUMP SUM QUANTITIES (LSQ)

1. These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

END OF SECTION 01025

01150 - 1

ARCHEOLOGICAL PROTECTION

SECTION 01150

ARCHEOLOGICAL PROTECTION

PART 1 - GENERAL

1.1 SUMMARY

A. The work of this section consists of protecting archeological resources contained in soil deposits.

1.2 DEFINITIONS

A. Resources: Prehistoric, historic, and recent 20th century artifacts, including charcoal, human bones, ash, fire rocks, and building materials that indicate the presence of past human occupation.

B. Archeologically Sensitive Areas: Areas that have been determined to contain significant in-the-ground archeological resources.

C. Nonsensitive Areas: Areas that have a low likelihood of containing significant in-the-ground archeological resources.

D. Archeological Monitor: Representative of the Government designated to record and collect cultural resources for compliance with Government regulations to protect in-the-ground resources.

1.3 SUBMITTALS

A. As specific in Division 1, Section “Submittal Procedures.”

B. 30 days before start of ground-disturbing site work, submit a Daily Work Schedule, detailing construction work in archeologically sensitive areas. Key schedule to drawings and include the following information.

1. Starting and ending dates of ground-disturbing construction.

2. Locations of temporary facilities, such as barriers, field offices, staging areas, sanitary facilities, borrow pits, and haul and access roads.

3. Types of construction, such as clearing, topsoil stripping, structure of trench excavation, landscaping, and post construction clean up.

4. Methods and equipment used for each type of construction.

5. Plan for relocating work in the event of temporary work stoppages at each archeologically sensitive area.

1.4 QUALITY ASSURANCE

A. At least one week before on-site work begins, Contractor shall meet with Contracting Officer (CO) and Archeological Monitor to discuss Daily work Schedule and

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ARCHEOLOGICAL PROTECTION

equipment and special methods to be used in archeologically sensitive areas.

Contractor shall ensure that approved Daily Work Schedule is followed throughout construction.

PART 2 - PRODUCTS

2.1 BARRICADES

A. As specified in Division 1, Section “Temporary Facilities and Controls.”

PART 3 - EXECUTION

3.1 BARRICADES

A. Construct as specified in Division 1, Section “Temporary Facilities and Controls.”

Locate as directed by CO.

3.2 OBSERVATION

A. Archeological Monitor will observe all ground-disturbing site work, including construction of temporary facilities, at all archeologically sensitive areas, from a safe location mutually agreed on by Contractor and Monitor. As new ground is broken, Monitor will examine excavated materials, using construction layout centerline and perimeter staking as a reference point to record locations of findings.

3.3 DISCOVERY OF RESOURCES

A. If Archeological Monitor discovers resources, immediate relocation of the work to a nonsensitive area may be required to allow Monitor to take soil samples and record resources. While Archeological Monitor is documenting resources in sensitive areas, Contractor shall relocate work to nonsensitive areas where monitoring is not normally required.

B. If resources are discovered while Archeological Monitor is absent, stop work immediately and report the discovery to the Contracting Officer.

3.4 WORK STOPPAGE

A. The Contractor shall plan, schedule, and execute the work to prevent stoppage at one area from stopping all work at the construction site.

END OF SECTION 01150

01550_02.doc - 1

GOVERNMENT FURNISHED MATERIALS (GFM)

SECTION 01550

PART 1 - GENERAL

1.1 1.1 SUMMARY

A. Applies to materials that shall be provided by the Government and installed by the Contractor.

1.2 INSPECTION

A. The Contractor shall notify the Contracting Officer (CO) at least 5 calendar days prior to picking up or returning Government-furnished materials.

1. The Contractor and the CO shall jointly inspect all materials during the loading operation at the storage area.

1.3 LIABILITY

A. The Contractor's liability for Government-furnished material shall start at the time he accepts the materials at the storage area, and shall terminate upon completion and final acceptance of the work.

1. It shall be implied that the Contractor has accepted Government-furnished from the storage area to the worksite.

2. The Contractor shall provide all labor, equipment, and incidentals necessary materials between the worksite and specified storage area.

1.4 REPLACEMENT AND/OR SUPPLEMENTAL MATERIALS

A. Any defective materials discovered prior to the Contractor's acceptance of the materials shall be replaced by the Government.

B. If the quantity of Government-furnished material accepted by the Contractor is insufficient to complete the specified work, supplemental materials complying with these specifications shall be provided by the Government at no expense to the Contractor.

C. The Government shall not replace any materials that, in the opinion of the CO, are damaged or lost due to the Contractor's negligence after the Contractor accepts the materials. Such materials shall be replaced at the Contractor's expense.

1.5 SURPLUS MATERIAL

A. After completion and final acceptance of the work, surplus Government-furnished materials shall be returned to the specified storage area in the same mechanical and physical condition as originally accepted.

B. Damaged surplus materials shall be replaced at the Contractor's expense.

C. The Contractor's liability for surplus materials shall terminate upon unloading and storage at the storage area.

01550_02.doc - 2

PART 2 – PRODUCTS

2.1 GOVERNMENT-FURNISHED MATERIALS

A. Government-furnished materials shall be limited to:

1. Wood Stove

PART 3 – EXECUTION

3.1 GENERAL

A. Installation and testing of Government-furnished materials shall comply with the applicable contract specifications covering work requiring the use of such materials.

END OF SECTION 01550

02120 - 1

REMOVAL AND DISPOSAL OF EXISTING VAULT TOILET STRUCTURE

SECTION 02120

REMOVAL AND DISPOSAL OF EXISTING VAULT TOILET STRUCTURE

PART 1 - GENERAL

1.1 SUMMARY

A. This item shall consist of removal and disposal of all members and materials comprising an existing vault toilet structure at the locations designated in accordance with these specifications.

1.2 METHOD OF MEASUREMENT

A. The quantity to be measured shall be the number of vault toilet structures removed and accepted. Measurement shall include native and/or imported select backfill.

PART 2 – PRODUCTS

2.1 SELECT BACKFILL

A. Select backfill shall be native or imported soil, sand, or granular soil free of stones larger than 6 inches in greatest dimension.

PART 3 – EXECUTION

3.1 REMOVAL

A. The Contractor may use any means he may elect to remove the structure as long as he provides for the safety of the public and preservation of existing vegetation.

B. The concrete in existing vault foundation and floor shall be broken into sufficiently small pieces to enable handling and disposed of as directed.

3.2 DISPOSAL

A. Unless specifically directed in writing, no attempt will be made to salvage for reuse any of the materials comprising the existing structure.

B. All wooden, concrete, and metal materials shall be removed from the site and disposed of at a designated disposal area.

C. The vault toilet waste shall be pumped by a commercial hauler with equipment for pumping and hauling human waste. Hauler shall have the necessary equipment to add water to the tank and break up solids in order to pump waste.

02120 - 2

REMOVAL AND DISPOSAL OF EXISTING VAULT TOILET STRUCTURE

D. Disposal of vault waste shall be at any sewage treatment facility approved by the State Department of Health. The Contractor shall be responsible to obtain permission to dump the waste in the treatment facilities and pay any fees required.

3.3 BACKFILLING

A. After the elements of the existing toilet structure have been removed and disposed of, the remaining depression shall be backfilled. Backfilling shall not be done when the depression is saturated or flooded with water. Puddling methods of backfill consolidation will not be permitted.

B. Select backfill shall be placed within the remaining depression. The material shall be placed in layers not over six inches in depth and compacted by means of a vibratory compactor so as to minimize settlement. The area shall be backfilled in such a manner until the area is brought up to the level of the natural ground.

3.4 FINISHING AND CLEANUP

A. After the area has been backfilled, the disturbed area shall be finish graded to present a natural appearance and cleaned up by removing all debris and materials left from the removal of the toilet structures.

END OF SECTION 02120

02222 – 2

STRUCTURAL EXCAVATION, BACKFILL AND COMPACTION

SECTION 02222

STRUCTURAL EXCAVATION, BACKFILL AND COMPACTION

PART 1 - GENERAL

1.1 SUMMARY

A. Includes structure excavation, special fills, backfill, and compaction.

1.2 PROTECTION

A. Protect excavations from accumulation of water. If clay soil becomes saturated, compact after it has dried as specified herein.

B. Protect excavations from freezing. If frost action occurs, compact ground after thawing as specified herein.

C. Provide shoring and bracing as necessary to protect structures employees, and the public.

1.3 REFERENCES

A. Standard Moisture Density Test AASHTO T-99, Method C or D.

PART 2 – PRODUCTS

2.1 BACKFILL AND FILLS

A. Use the excavated material as specified below:

1. Remove rocks over 8 inches in maximum dimension, ice or frozen earth, muck, debris, and earth with high void content.

2. Remove rocks over 4 inches in maximum dimension for backfill placed within 12 inches of foundation.

3. Materials removed in stripping shall not be used for backfill.

2.2 GRAVEL FILLS

A. Clean pit-run gravel uniformly graded with less than 5% minus #200 material, 2 inches maximum size, free of deleterious materials.

PART 3 – EXECUTION

3.1 EXCAVATION

A. Perform to the lines, grades, and elevations indicated. Extend excavation a sufficient distance from walls and footings to allow for safety, placing and removal of forms, 02222 – 2

STRUCTURAL EXCAVATION, BACKFILL AND COMPACTION

installation of services, and for inspection. Provide proper depth with allowance made for gravel fills formed voids and concrete flatwork.

1. Bottoms for piers, footings, and foundation walls shall be level, clean, true to size, and clear of loose materials.

2. Pier excavations shall be drilled or otherwise accurately formed.

3. If excavations for foundations are carried below the specified levels, extend the foundation to the excavated level.

3.2 BACKFILLING

A. Place and compact fills and backfills adjacent to structures in such a manner as to prevent wedging action or eccentric lodging upon or against the structures.

1. Remove forms, and clean the excavation of trash and debris prior to backfilling.

2. Do not place backfill against any concrete footings or wall without prior permission of the Contracting Officer (CO) and in no case less than 7 days after completion of the wall or footings.

3. Place backfill in horizontal layers not more than 12 inches thick with the proper moisture content for the required degree of compaction. Flooding or puddling not allowed. Compact each layer as specified. Backfill layer thickness under concrete flatwork limited to 6 inches maximum.

4. Heavy equipment for spreading and compacting backfill shall not be operated closer to a wall than a distance equal to the height of the backfill above the top of the footing.

5. Provide for anticipated settlement and shrinkage of the backfill and for the finished grades required, including topsoil grading.

6. Prepare subgrades for gravel fill areas level and free from soft spots. Place and compact earthfill where required to raise subgrade. Place gravel to the lines and grades shown. Compact the gravel sub-base as specified until a smooth, uniform use surface is obtained.

3.3 COMPACTION

A. Compact each layer by 3 passes of mechanical compaction equipment.

END OF SECTION 02222

06100 - 1

ROUGH CARPENTRY

SECTION

ROUGH CARPENTRY

06100

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Wood framing.

2. Wood supports.

3. Wood blocking.

4. Wood cants.

5. Wood nailers.

6. Wood furring.

7. Wood grounds.

8. Wood sheathing.

9. Wood subflooring.

10. Wood underlayment.

11. Plywood backing panels.

12. Building wrap.

B. Requirements for project will be provided with individual task orders.

1.2 SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product indicated.

1. Include data for wood-preservative and fire-retardant treatment from chemical treatment manufacturer and certification by treating plant that materials comply with requirements.

B. Research/Evaluation Reports: For the following:

1. Treated wood.

2. Engineered wood products.

3. Foam-plastic sheathing.

4. Power-driven fasteners.

5. Powder-actuated fasteners.

6. Expansion anchors.

7. Metal framing anchors.

8. Building wrap.

PART 2 - PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

06100 - 2

A. Lumber: DOC PS 20 and applicable rules of lumber grading agencies certified by the American Lumber Standards Committee Board of Review.

1. Factory mark each piece of lumber with grade stamp of grading agency.

2. For exposed lumber indicated to receive stained or natural finish, mark grade stamp on end or back of each piece, or omit grade stamp and provide certificates of grade compliance issued by grading agency.

3. Provide dressed lumber, S4S, unless otherwise indicated.

4. Provide dry lumber with 15 percent maximum moisture content at time of dress-ing for 2-inch nominal (38-mm actual)

B. Engineered Wood Products: Acceptable to authorities having jurisdiction and for which current model code research or evaluation reports exist that show compliance with building code in effect for Project.

thickness or less, unless otherwise indi-cated.

1. Allowable Design Stresses: Meet or exceed those indicated per manufacturer's published values determined from empirical data or by rational engineering analysis and demonstrated by comprehensive testing performed by a qualified independent testing agency.

C. Wood Structural Panels:

1. Plywood: Either DOC PS 1 or DOC PS 2, unless otherwise indicated.

2. Oriented Strand Board: DOC PS 2.

3. Comply with "Code Plus" provisions in APA Form No. E30K, "APA De-sign/Construction Guide: Residential & Commercial."

2.2 WOOD-PRESERVATIVE-TREATED MATERIALS

A. Requirements shall be specified with individual task orders.

2.3 FIRE-RETARDANT-TREATED MATERIALS

A. General: Where fire-retardant-treated materials are indicated, provide materials that comply with performance requirements in AWPA C20 (lumber) and WPA C27 (plywood). Identify fire-retardant-treated wood with appropriate classification mark-ing of UL, U.S. Testing, Timber Products Inspection, or another testing and inspecting agency acceptable to authorities having jurisdiction.

2.4 DIMENSION LUMBER

A. General: Of grades indicated according to the American Lumber Standards Commit-tee National Grading Rule provisions of the grading agency indicated.

PART 3 - EXECUTION

06100 - 3

3.1 INSTALLATION

A. Set rough carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Fit rough carpentry to other construction; scribe and cope as needed for ac-curate fit. Locate furring, nailers, blocking, grounds and similar supports to comply with requirements for attaching other construction.

B. Apply field treatment complying with AWPA M4 to cut surfaces of preservative-treated lumber and plywood.

C. Securely attach rough carpentry work to substrate by anchoring and fastening as indi-cated, complying with the following:

1. CABO NER-272 for power-driven fasteners.

2. Published requirements of metal framing anchor manufacturer.

3. Table 23-II-B-1, "Nailing Schedule," and Table 23-II-B-2, "Wood Structural Panel Roof Sheathing Nailing Schedule," in the Uniform Building Code.

4. Table 2306.1, "Fastening Schedule," in the Standard Building Code.

5. Table 602.3(1), "Fastener Schedule for Structural Members," and Ta-ble 602.3(2), "Alternate Attachments," in the International One- and Two- Family Dwelling Code.

D. Use finishing nails for exposed work, unless otherwise indicated. Countersink nail heads and fill holes with wood filler.

E. Framing Standard: Comply with AFPA's "Manual for Wood Frame Construction," unless otherwise indicated.

F. Framing with Engineered Wood Products: Install engineered wood products to comp-ly with manufacturer's written instructions.

G. Comply with applicable recommendations contained in APA Form No. E30K, "APA Design/Construction Guide: Residential & Commercial," for types of structural-use panels and applications indicated.

1. Comply with "Code Plus" provisions in above-referenced guide.

H. Fastening Methods:

1. Combination Subfloor-Underlayment: Glue and nail to wood framing.

2. Subflooring: Glue and nail to wood framing.

3. Sheathing: Nail to wood framing.

4. Underlayment: Nail to subflooring.

5. Plywood Backing Panels: Nail or screw to supports.

06100 - 4

I. Apply building paper horizontally with 2-inch (50-mm) overlap and 6-inch (150-mm) end lap; fasten to sheathing with galvanized staples or roofing nails. Cover upstanding flashing with 4-inch (102-mm)

J. Building Wrap Application: Cover wall sheathing with building wrap as indicated.

Cover upstanding flashing with overlap.

4-inch (102-mm)

K. Apply sheathing tape to joints between sheathing panels and at items penetrating sheathing. Apply at upstanding flashing to overlap both flashing and sheathing.

overlap. Seal seams, edges, and pe-netrations with tape.

END OF SECTION 06100

06105-1

MISCELLANEOUS CARPENTRY

SECTION 06105

MISCELLANOUS CARPENTRY

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Wood framing.

2. Miscellaneous lumber.

3. Interior and exterior wood trim.

4. Panel products.

1.2 SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product indicated.

1. Include data for wood-preservative and fire-retardant treatment from chemical treatment manufacturer and certification by treating plant that materials comply with requirements.

B. Research/Evaluation Reports: For the following:

1. Preservative-treated wood.

2. Fire-retardant-treated wood.

3. Power-driven fasteners.

PART 2 - PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

A. Lumber: DOC PS 20 and applicable rules of lumber grading agencies certified by the American Lumber Standards Committee Board of Review.

1. Factory mark each piece of lumber with grade stamp of grading agency.

2. For exposed lumber indicated to receive stained or natural finish, mark grade stamp on end or back of each piece or omit grade stamp and provide certificates of grade compliance issued by grading agency.

3. Provide dressed lumber, S4S, unless otherwise indicated.

4. Provide dry lumber with 15 percent maximum moisture content at time of dress-ing for 2-inch nominal (38-mm actual)

B. Wood Structural Panels:

thickness or less, unless otherwise indi-cated.

06105-2

1. Plywood: DOC PS 1 or DOC PS 2, unless otherwise indicated.

2. Oriented Strand Board: DOC PS 2.

2.2 WOOD-PRESERVATIVE-TREATED MATERIALS

A. Preservative Treatment by Pressure Process: AWPA C2 (lumber) and AWPA C9 (plywood), except that lumber that is not in contact with the ground and is continuous-ly protected from liquid water may be treated according to AWPA C31 with inorganic boron (SBX).

B. Kiln-dry material after treatment to maximum moisture content of 19 percent for lumber and 15 percent for plywood.

C. Mark each treated item with the treatment quality mark of an inspection agency ap-proved by the American Lumber Standards Committee Board of Review.

D. Application: Treat items indicated in Task Order , and the following:

1. Wood cants, nailers, curbs, equipment support bases, blocking, stripping, and similar members in connection with roofing, flashing, vapor barriers, and water-proofing.

2. Wood sills, sleepers, blocking, furring, stripping, and similar concealed mem-bers in contact with masonry or concrete.

3. Wood framing members less than 18 inches (460 mm)

4. Wood floor plates that are installed over concrete slabs directly in contact with earth.

above grade.

2.3 FIRE-RETARDANT-TREATED MATERIALS

A. With performance requirements in AWPA C20 (lumber) and AWPA C27 (plywood).

Identify fire-retardant-treated wood with appropriate classification marking of UL, U.S. Testing, Timber Products Inspection, or another testing and inspecting agency acceptable to authorities having jurisdiction.

1. Use Exterior type for exterior locations and where indicated.

2. Use Interior Type A High Temperature (HT), unless otherwise indicated.

2.4 DIMENSION LUMBER

A. General: Of grades indicated according to the American Lumber Standards Commit-tee National Grading Rule provisions of the grading agency indicated.

B. Non-Load-Bearing Interior Partitions: Construction, Stud, or No. 2 grade and any of the following species:

1. Northern species; NLGA.

06105-3

2. Western woods; WCLIB or WWPA.

C. Other Framing: Construction, Stud, or No. 2 grade and [any of] the following species:

1. Douglas fir-larch, Douglas fir-larch (north), or Douglas fir-south; NLGA, WCLIB, or WWPA.

2. Hem-fir or Hem-fir (north); NLGA, WCLIB, or WWPA.

3. Southern pine; SPIB.

4. Spruce-pine-fir (south) or Spruce-pine-fir; NELMA, NLGA, WCLIB, or

WWPA.

2.5 MISCELLANEOUS LUMBER

A. Provide miscellaneous lumber for support or attachment of other construction, includ-ing the following:

1. Rooftop equipment bases and support curbs.

2. Blocking.

3. Cants.

4. Nailers.

5. Furring.

6. Grounds.

B. For items of dimension lumber size, provide Construction, Stud, or No. 2 grade lumb-er with 19 percent maximum moisture content of any species.

C. For exposed boards, provide lumber, with 19 percent maximum moisture content, of eastern white pine, Idaho white, lodgepole, ponderosa, or sugar pine; D Select (Quali-

ty) grade; NELMA, NLGA, WCLIB, or WWPA.

D. For concealed boards, provide lumber with 19 percent maximum moisture content and any of the following species and grades:

1. Mixed southern pine, No. 2 grade; SPIB.

2. Eastern softwoods, No. 2 Common grade; NELMA.

3. Northern species, No. 2 Common grade; NLGA.

4. Western woods, Construction or No. 2 Common grade; WCLIB or WWPA.

2.6 INTERIOR WOOD TRIM

A. Hardwood Lumber Trim for Transparent Finish (Stain or Clear Finish): Clear, kiln-dried, red oak or white maple finished lumber (S4S), selected for compatible grain and color.

B. Lumber Trim for Opaque Finish (Painted): Finished lumber (S4S), either finger-jointed or solid lumber, of one of the following species and grades:

1. Grade Finish or 2 Common eastern white pine; NELMA or NLGA.

06105-4

2. Grade D Select (Quality) Idaho white, lodgepole, ponderosa, or sugar pine;

NLGA or WWPA.

3. Grade A Finish alder, aspen, basswood, cottonwood, gum, magnolia, soft maple, sycamore, tupelo, or yellow poplar; NHLA.

C. Moldings: Made to patterns included in WMMPA WM 7. Wood moldings made from kiln-dried stock and graded according to WMMPA WM 4.

1. Moldings for Transparent Finish (Stain or Clear Finish): N-grade eastern white, Idaho white, lodgepole, ponderosa, or sugar pine.

2. Moldings for Opaque Finish (Painted): P-grade eastern white, Idaho white, lod-gepole, ponderosa, or sugar pine, aspen, basswood, cottonwood, gum, magnolia, soft maple, tupelo, or yellow poplar, primed medium-density fiberboard.

2.7 SHELVING AND CLOTHES RODS

A. Shelving: 3/4-inch (19-mm)

B. Clothes Rods:

particleboard shelving with radiused and filled front edge, medium-density fiberboard shelving with radiused front edge, or boards of same species and grade indicated above for exposed boards.

1-1/2-inch- (38-mm-)

2.8 PANEL PRODUCTS

diameter, clear, kiln-dried hardwood rods, clear, kiln-dried softwood rods; either Douglas fir or southern pine, or aluminum tubes.

A. Miscellaneous Concealed Plywood: Exterior sheathing, span rating to suit framing in each location, and thickness as indicated but not less than 1/2 inch (13 mm)

B. Miscellaneous Concealed Oriented Strand Board: Exposure 1 sheathing, span rating to suit framing in each location, and thickness as indicated but not less than

1/2 inch (13 mm)

C. Particleboard Underlayment: ANSI A208.1, Grade PBU.

D. Hardboard Underlayment: AHA A135.4, Class 4 (Service), Surface S1S; with back-side sanded.

E. Miscellaneous Exposed Plywood: DOC PS 1, A-D Interior, thickness as indicated but not less than 1/2 inch (13 mm)

F. Telephone and Electrical Equipment Backing Panels: DOC PS 1, Exposure 1, C-D Plugged, fire-retardant treated, in thickness indicated or, if not indicated, not less than

1/2 inch (12.7 mm)

2.9 FASTENERS

thick.

06105-5

A. General: Where carpentry is exposed to weather, in ground contact, or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with

ASTM A 153/A 153M.

B. Power-Driven Fasteners: CABO NER-272.

C. Screws for Fastening to Cold-Formed Metal Framing: ASTM C 954, except with wa-fer heads and reamer wings.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Set carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Fit carpentry to other construction; scribe and cope as needed for accurate fit.

Locate furring, nailers, blocking, grounds, and similar supports to comply with re-quirements for attaching other construction.

B. Securely attach carpentry work as indicated and according to applicable codes and recognized standards.

C. Countersink fastener heads on exposed carpentry work and fill holes with wood filler.

D. Wood Structural Panels: Comply with applicable recommendations contained in APA Form No. E30K, "APA Design/Construction Guide: Residential & Commercial," for types of structural-use panels and applications indicated.

E. Wood Trim Installation: Install with minimum number of joints practical, using full-length pieces from maximum lengths of lumber available. Cope at returns and miter at corners to produce tight-fitting joints. Use scarf joints for end-to-end joints.

1. Match color and grain pattern across joints.

2. Install trim after gypsum board joint-finishing operations are completed.

3. Install to tolerance of 1/8 inch in 96 inches (3 mm in 2438 mm) for level and plumb. Install adjoining finishes carpentry with 1/32-inch (0.8-mm) maximum offset for flush installation and 1/16-inch (1.6-mm)

END OF SECTION 06105

maximum offset for reveal installation.

06200 - 1

FINISH CARPENTRY

SECTION

FINISH CARPENTRY

06200

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Standing and running trim.

2. Stairs and railings.

3. Paneling.

4. Exterior soffits.

B. See Division 6 Section "Interior Architectural Woodwork" for interior woodwork not specified in this Section.

1.2 DEFINITION

A. Finish carpentry is nonstructural work that is exposed to view, not usually shop fabri-cated and not specified in other sections.

1.3 SUBMITTALS

A. Product Data: For each type of factory-fabricated product and process indicated.

B. Samples: For the following:

1. Each type of finish required.

2. Each type of paneling required.

3. Each type of siding required.

PART 2 - PRODUCTS

2.1 MATERIALS, GENERAL

A. Lumber Standards: Comply with DOC PS 20, "American Softwood Lumber Stan-dard," for lumber and with applicable grading rules of inspection agencies certified by the American Lumber Standards Committee Board of Review.

B. Softwood Plywood: Comply with DOC PS 1, "U.S. Product Standard for Construc-tion and Industrial Plywood."

C. Hardwood Plywood: Comply with HPVA HP-1, "Interim Voluntary Standard for Hardwood and Decorative Plywood."

06200 - 2

D. Preservative Treatment: Comply with NWWDA I.S. 4 for exterior finish carpentry to receive water-repellent preservative treatment.

E. Fire-Retardant Treatment: Where indicated, use materials impregnated with fire-retardant chemicals per AWPA C20; exterior type or interior Type A as required.

2.2 STANDING AND RUNNING TRIM

A. Exterior Standing and Running Trim: Finished lumber and moldings.

1. Species and Grade: Saw-textured, Clear Heart, western red cedar; NLGA, WCLIB, or WWPA.

B. Primed Hardboard Trim: Fabricated from high-temperature-cured, high-resin, wood fiber composite; factory primed on face and two edges; and recommended by manu-facturer for exterior use.

C. Interior Standing and Running Trim: Finished lumber and moldings.

1. Species and Grade or Cut: C Select, eastern white pine; NELMA or B & Btr.

Select or Supreme, Idaho white, lodgepole, ponderosa, or sugar pine; WWPA or Rift-sawn, clear, kiln-dried red oak selected for compatible grain and color, re-quirements specified in task order.

D. Wood Molding Patterns: Stock moldings made to patterns included in WMMPA WM 7 and graded under WMMPA WM 4.

1. Base: WM 623 (ogee base), WM 713 (ranch base), or WM 753 (beaded-edge base), requirements specified in task order.

2. Casing: WM 327 (clamshell casing), WM 366 (featheredge casing), WM 376 (beaded-edge casing), requirements specified in task order.

3. Shoe Mold: Clear, kiln-dried red oak; WM 126, 1/2-by-3/4-inch (13-by-19-mm)

4. Moldings for Transparent Finish: N-Grade.

quarter-round shoe.

5. Moldings for Painted Finish: P-Grade.

E. Shelving: 3/4-inch (19-mm)

2.3 STAIRS AND RAILINGS

D select (quality) shelving with radiused and filled…