CrescentSpecs.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

SECTION 01770- CLOSEOUT PROCEDURES 2

SECTION 01790- HANDAVIRUS CLEAN UP 2

DIVISION 2 – SITE WORK

SECTION 02222 – STRUCTURAL EXCAVATION, BACKFILL & COMPACTION 2

DIVISION 4- MASONRY

SECTION 04402- STONE FOUNDATIONS 2

SECTION 06100 - ROUGH CARPENTRY 3

DIVISION 6 – WOOD AND PLASTICS

SECTION 06200 - FINISH CARPENTRY 2

SECTION 07131- SELF ADHERING UNDERLAYMENT 2

DIVISION 7- THERMAL AND MOISTURE PROTECTION

SECTION 08211- WOOD DOORS 2

DIVISION 8- DOORS AND WINDOWS

SECTION 08550- WOOD WINDOWS 2

SECTION 09900- PAINTING, STAINING AND CHINKING 3

DIVISION 9 – FINISHES

SECTION 10301 – PREFABRICATED WOOD STOVES 1

DIVISION 10 – SPECILITIES

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 various maintenance work items to six historic Forest Service cabins on the San Isabel National Forest. The cabins included are four at the Crescent Mining Camp, #’s 8104, 8105, 8106 and 8107, Dawson cabin, #8108, and Hutchinson-Barnett cabin, #9218. Also included are two additive items to dig the holes for concrete toilet vault structures and construct new wood framed toilets on top of Government Furnished and installed concrete vaults at the Woods and Hutchinson- Barnett cabins. The maintenance work to be done includes:

1. Removing and replacing rotten sill logs. Prior to commencing work the

Contractor shall submit a plan to the COR for the log replacement including temporary bracing of the structure, proposed materials and sources, and proposed preservative treatment.

2. Refurbishing the existing metal shingle roofs on three cabins at the Crescent Mining Camp and replacing the roof on building #8106 to match the others. The historic metal shingles shall be removed and retained for reinstallation, 5/8” plywood shall be installed over existing board sheathing, a waterproof, self-sealing underlayment consisting of two layers, one similar to “Grace Ultra” and one similar to “Tamko Nail-Fast” shall be installed over the entire roof surface, and the metal shingles shall be reinstalled using galvanized ring shank roofing nails with neoprene washers. Missing shingles and the new shingles for building 8106 shall be fabricated by the Contractor to have similar dimensions, shape and color as existing historic shingles. All sheathing, underlayment, fasteners, and shingle material shall be submitted to the COR for approval before beginning work.

3. Reconstructing native stone and mortar foundations on buildings 8104 and 8105, similar to those of buildings 8106 and 8107.

4. Re-chinking the logs of all six cabins with synthetic chink.

5. Cleaning and disinfecting the interiors of all six cabins.

6. Replacing several doors and windows on the Crescent cabins. Doors, windows and rough sawn shutters shall be similar in appearance to buildings 8106 and 8107.

01010 - 2

7. Replace the front porches on buildings 8104 and 8105. The new porches shall match the appearance of existing porches and be designed for a snow load of 90 psf. The design and construction materials shall be submitted to the COR for approval.

8. Replacement of approximately 50% of the floor planks in buildings 8104 and 8105. Paint or stain to match existing floor.

9. Supply and install a cast iron wood stove in building 8107, replace the wood stove pipes and chimneys in buildings 8106, 8107 and 8108, and remove the unused chimney and patch the roof on building 8108.

10. Grade around building 8108 as shown on the drawings to facilitate water drainage away from the building.

B. 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

2.2 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 on the Leadville Ranger District in Chaffee County. From Buena Vista, CO, travel north on Hwy 24 approximately 15 miles to Lake County Rd 390, travel west on CR 390 approximately 10 miles to Rockdale. The mining camp is located on the south side of the county road.

B. The Dawson Cabin, Building #8108, is located 3.5 miles east of Rockdale (Crescent Cabins) on the north side of Road 390.

C. The Hutchinson-Barnett Cabin is located on the Salida Ranger District in Chaffee County. From Poncha Springs, CO, travel south on Hwy 285 for 5 miles, turn right on Chaffee County RD 200, travel west for 3 miles to FS 202, turn right and travel for 0.8 miles, turn right on FS 200 for 8 miles, turn right on FS 200.C for 0.2 miles.

D. The Woods Cabin is located on the Salida Ranger District in Chaffee County. From Poncha Springs, CO, travel south on Hwy 285 for 5 miles, turn right on Chaffee County RD 200, travel west for 3 miles to FS 202, turn right and travel for 0.8 miles, turn right of FS 200 and travel for 1.5 miles, turn right on FS 204 (4WD road) for 1 mile to Woods cabin.

01010 - 3

3.2 GENERAL SITE CONDITIONS AND WEATHER

A. The elevations of the sites are between approximately 9,300 and 10,800 feet above mean sea level. These sites experience heavy snowfall and extremely cold temperatures in the winter, 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.

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.

3.3 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: Confine 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.

01010 - 4

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.

3.4 MEALS AND LODGING

A. Meals and lodging are commercially available in the Town of Leadville within 30 miles of the Crescent Mining Camp 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.

3.5 CAMPING

A. With approval by the Leadville and Salida Ranger Districts, 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.

3.6 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.

3.7 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 Actual Quantity (AQ) 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.

01025-2

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.

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

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

D.

: Linear feet measured horizontally.

Square Foot:

E.

Measure on a plane parallel to the surface being measured. Make no deductions from the area computation for individual fixtures having an area of 1.2 square yards or less. Do not measure overlaps.

Square

1.4 DEFINITION OF PAY ITEMS

: An amount of roof area equal to 100 square feet.

A. Definition of Pay Items No. 1, 14, 37 and 45

1. Description: Furnish labor, equipment and materials to 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.

B. Definition of Pay Item No. 2 and 15

1. Description: Furnish labor, equipment and materials to reconstruct native stone and mortar foundation similar to those on buildings 8106 and 8107.

2. Measurement and payment: Lump Sum Quantity.

C. Definition of Pay Item No. 3, 16, 31, 36, 38 and 46

1. Description: Furnish labor, equipment and materials to remove and replace loose and damaged chinking, cleanup and disposal. Chinking color shall match existing.

2. Measurement and payment: Actual Quantity; payment per linear foot of chinking replaced.

01025-3

MEASUREMENT AND PAYMENT

D. Definition of Pay Item No. 4, 17, 28, 33 and 43

1. Description: Furnish labor, equipment and materials to clean interior of cabins of all debris, including rodent droppings, and disinfect using a spray solution.

See section 01790 of the specifications, Hantavirus Clean Up, for proper safety and clean up procedures.

2. Measurements and Payment: Actual Quantity; payment per cabin cleaned and disinfected.

E. Definition of Pay Item No. 5, 18, 27 and 42

1. Description: Furnish labor, equipment and materials to replace exterior doors and associated hardware with in-kind materials that match the historic period.

Verify sizes before ordering.

2. Measurement and payment: Actual Quantity; payment per each door and associated hardware replaced.

F. Definition of Pay Item No. 6, 7, 8, 19 and 20

1. Description: Furnish labor, equipment and materials to replace single hung window sash assemblies. Match windows in buildings 8106 and 8107.

2. Measurement and payment: Actual quantity; payment for each window replaced.

G. Definition of Pay Item No. 9 and 21

1. Description: Furnish labor, equipment and materials to cover all windows and doors with shutters similar to buildings 8106 and 8107. Use rough sawn ponderosa pine lumber.

2. Measurement and payment: Actual quantity; payment for complete shutters over each window and door.

H. Definition of Pay Item No. 10 and 22

1. Description: Furnish labor, equipment and materials to paint window and door frames and shutters to match buildings 8106 and 8107.

2. Measurement and payment: Lump Sum Quantity

I. Definition of Pay Item No. 11, 23 and 32

1. Description: Furnish labor, equipment and materials to remove and retain existing historic metal shingles, install 5/8” plywood sheathing over existing board sheathing, install two layers of waterproof underlayment, reinstall historic metal shingles replacing missing shingles and damaged fascia with “in kind” materials to match historic appearance. Shingles shall be fastened with galvanized ring shank roofing nails with neoprene washers. Included in the pay items are all labor, equipment and materials required to complete the job. All sheathing, underlayment, fasteners, and replacement shingle materials shall be submitted to the COR for approval before beginning work. Every effort should be made to create a waterproof roof that is adequate to protect the structure, while maintaining the historic appearance of the unique roofing materials.

01025-4

MEASUREMENT AND PAYMENT

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

J. Definition of Pay Item No. 12 and 24

1. Description: Furnish labor, equipment and materials to replace the front porches on buildings 8104 and 8105. The new porches shall match the appearance of existing porches and be designed for a snow load of 90 psf. The design and construction materials shall be submitted to the COR for approval.

Pay item includes all material, fasteners, foundation and exterior finishes.

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

K. Definition of Pay Item No. 13 and 25

1. Description: Furnish labor, equipment and materials to replace approximately

50% of floor planks in buildings 8104 and 8105- approximately 154 SF in bld.

8104 and 100 SF in bld. 8105. Match existing dimensions, color, and finish.

Items include all labor, materials, fasteners, and finishes.

2. Measurement and payment: Actual quantity; payment per square foot of flooring replaced.

L. Definition of Pay Item No. 29

1. Description: Furnish labor, equipment and materials to remove ceiling paneling to create a vaulted ceiling and remove paneling from walls. COR shall mark all paneling and ceiling sections to be removed prior to work.

2. Measurement and payment: Lump Sum Quantity

M. Definition of Pay Item No. 30, 34 and 40

1. Description: Furnish labor, equipment and materials to replace woodstove pipe and chimney. Ensure pipes and chimneys meet local building codes and are installed in compliance with the UL listing.

2. Measurement and payment: Actual quantity; payment for each chimney removed and replaced.

N. Definition of Pay Item No. 35

1. Description: Furnish labor, equipment and materials to supply and install cast iron woodstove. Stoves shall be Morso 2110 double-door or an approved equal.

The appearance of the stoves shall match the time period of the cabins. Ensure stove is installed per local building codes and the UL listing.

2. Measurement and payment: Actual quantity; payment for each woodstove installed.

01025-5

MEASUREMENT AND PAYMENT

O. Definition of Pay Item No. 41

1. Description: Furnish labor, equipment and materials to remove unused chimney and patch roof. Patch roof with materials similar to existing roofing materials.

Item includes framing, materials and labor.

2. Measurement and payment: Actual quantity; payment for each chimney removed and patched.

P. Definition of Pay Item No. 44

1. Description: Furnish labor, equipment and materials to grade around building for proper drainage. Forest Service shall stake cut and fill locations and slopes on the ground prior to commencing work.

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

Q. Additive Pay Item No. 1

1. Description: Furnish labor, equipment and materials to dig the hole for

Government Furnished LDPE lined concrete vault and floor at the Hutchinson- Barnett cabin and construct wood framed toilet on top of concrete vault per construction drawings. Item includes all material, equipment, transport, mobilization, excavation and backfill to furnish a completed toilet structure.

2. The location of the toilet shall be staked on the ground by the Forest Service.

3. The Contractor shall dig the hole for the concrete vault prior to delivery of the vault. Missoula Concrete will place the vault in the hole dug by Contractor upon delivery.

4. The size and depth of the hole shall be large enough to allow for proper backfill and compaction.

5. Contractor shall contact Missoula Concrete to arrange for delivery. Forest Service will provide contact information.

6. Measurement and payment: Lump Sum Quantity

R. Additive Pay Item No. 2

1. Description: Furnish labor, equipment and materials to dig the hole for

Government Furnished LDPE lined concrete vault and floor at the Woods cabin and construct wood framed toilet on top of concrete vault per construction drawings. Item includes all material, equipment, transport, mobilization, excavation and backfill to furnish a completed toilet structure.

2. The location of the toilet shall be staked on the ground by the Forest Service.

3. The Contractor shall dig the hole for the concrete vault prior to delivery of the vault. Missoula Concrete will place the vault in the hole dug by Contractor upon delivery.

4. The size and depth of the hole shall be large enough to allow for proper backfill and compaction.

5. Contractor shall contact Missoula Concrete to arrange for delivery. Forest Service will provide contact information.

6. Measurement and payment: Lump Sum Quantity

01025-6

MEASUREMENT AND PAYMENT

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

01150 - 2

ARCHEOLOGICAL PROTECTION

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

PART 2 - PRODUCTS

2.1 BARRICADES

A. As specified by CO

PART 3 - EXECUTION

3.1 BARRICADES

A. Construct as specified by CO, 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

B. The Government shall supply two LDPE lined concrete vaults and floors

C. The Contractor shall dig the hole for the concrete vault prior to delivery of the vault.

Missoula Concrete will place the vault in the hole dug by Contractor upon delivery.

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

01550_02.doc - 2

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.

PART 2 – PRODUCTS

2.1 GOVERNMENT-FURNISHED MATERIALS

A. Government-furnished materials shall be limited to:

1. Two LDPE lined concrete vaults and floors

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

01770 - 1

CLOSEOUT PROCEDURES

SECTION

CLOSEOUT PROCEDURES

01770

PART - GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for contract clo-seout, including, but not limited to, the following:

1. Instruction of Government personnel.

2. Final cleaning.

B. See Division 1 for special cleaning requirements.

1.2 SUBSTANTIAL COMPLETION

A. Preliminary Procedures: Before requesting inspection for determining date of Sub-stantial Completion, complete the following. List items below that are incomplete in request.

1. Prepare a list of items to be completed and corrected (punch list), the value of items on the list, and reasons why the Work is not complete.

2. Advise Contracting Officer (CO) of pending insurance changeover require-ments.

3. Submit specific warranties, workmanship bonds, maintenance service agree-ments, final certifications, and similar documents.

4. Prepare and submit Project Record Documents, operation and maintenance ma-nuals, Final Completion construction photographs and photographic negatives, damage or settlement surveys, property surveys, and similar final record infor-mation.

5. Make final changeover of permanent locks and deliver keys to CO. Advise Government personnel of changeover in security provisions.

6. Submit changeover information related to Government occupancy, use, opera-tion, and maintenance.

7. Complete final cleaning requirements, including touchup painting.

8. Touch up and otherwise repair and restore marred exposed finishes to eliminate visual defects.

B. Inspection: Submit a written request for inspection for Substantial Completion. On receipt of request, CO will either proceed with inspection or notify Contractor of un-fulfilled requirements. CO will prepare the Certificate of Substantial Completion after inspection or will notify Contractor of items, either on Contractor's list or additional items identified by CO, that must be completed or corrected before certificate will be issued.

1. Reinspection: Request reinspection when the Work identified in previous in-spections as incomplete is completed or corrected.

01770 - 2

CLOSEOUT PROCEDURES

2. Results of completed inspection will form the basis of requirements for Final Completion.

1.3 FINAL CLEANING

A. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and anti-pollution regulations.

B. Cleaning: Employ experienced workers or professional cleaners for final cleaning.

Clean each surface or unit to condition expected in an average Forest Service building.

Comply with manufacturer's written instructions.

1. Complete the following cleaning operations before requesting inspection for cer-tification of Substantial Completion for entire Project or for a portion of Project:

a. Clean Project site, yard, and grounds, in areas disturbed by construction activities, including landscape development areas, of rubbish, waste ma-terial, litter, and other foreign substances.

b. Sweep paved areas broom clean. Remove petrochemical spills, stains, and other foreign deposits.

c. Remove tools, construction equipment, machinery, and surplus material from Project site.

d. Clean transparent materials, including mirrors and glass in doors and win-dows. Remove glazing compounds and other noticeable, vision-obscuring materials. Replace chipped or broken glass and other damaged transparent materials. Polish mirrors and glass, taking care not to scratch surfaces.

e. Remove labels that are not permanent.

f. Touch up and otherwise repair and restore marred, exposed finishes and surfaces. Replace finishes and surfaces that cannot be satisfactorily re-paired or restored or that already show evidence of repair or restoration.

1) Do not paint over "UL" and similar labels, including mechanical and electrical nameplates.

g. Leave Project clean and ready for occupancy.

C. Comply with safety standards for cleaning. Do not burn waste materials. Do not bury debris or excess materials on Government property. Do not discharge volatile, harm-ful, or dangerous materials into drainage systems. Remove waste materials from Project site and dispose of lawfully.

D. This work shall be considered incidental to all Pay Items. No separate payment shall be made for cleanup procedures.

END OF SECTION 01770

01790 - 1

HANTAVIRUS CLEAN UP PROCEDURES

SECTION

01790

PART 1 - GENERAL

1.1 SUMMARY

A. This section includes procedures for safely opening and working in cabins, general precautions in areas affected by hantavirus, and for cleaning up rodent urine and droppings.

PART 2 – PROCEDURES

2.1 OPENING AND WORKING IN CABINS

A. When opening a cabin or shelter make a quick visual inspection for signs of rodent ac-tivity from outside the door. Signs include dropping, nests, and dead rodents. If such evidence is found ventilate the building by opening doors for at least 30 minutes.

Leave the area downwind during the airing-out period. This airing helps to remove in-fectious primary aerosols that might be created when hantavirus-infected rodents uri-nate.

2.3 GENERAL PRECAUTIONS IN AREAS AFFECTED BY HANTAVIRUS

A. Eliminate rodents and reduce the availability of food sources and nesting sites used by rodents inside buildings.

B. Keep food (including pet food) and water covered and stored in rodent-proof metal or thick plastic containers with tight-fitting lids. Wash dishes and cooking utensils immediately after use and remove all spilled food.

C. Use spring-loaded rodent traps or approved rodent repellent continuously.

2.4 CLEANING UP RODENT URINE AND DROPPINGS

A. Required respirator PPE is ½ face or filtering face piece, N95 Cartridge, N100 Particulate. The N100 should be used when cleaning up an infected area. Higher effective respirators are available upon request.

Required PPE Wear rubber, latex, vinyl, or nitrile gloves.

Use insect repellent (containing DEET) on clothing, shoes, and hands to reduce the risk of fleabites that might transmit plague.

Where there is heavy rodent infestation, wear high efficiency National Institute of Safety and Health( NIOSH certified particulate air respirators (FSH 6709.11

01790 - 2 sec.21.13),disposable coveralls, disposable shoe covers, suitable eye protection, and two pair of latex gloves.

B. The hantavirus is eliminated by disinfectants. Two types of disinfecting solutions are recommended:

1. General-Purpose Household Disinfectant --- Prepare according to the label, if not pre-diluted. Any product labeled "disinfectant" should be sufficient. These include products with the following active ingredients: phenols, quaternary ammonium com-pounds and hypochlorite.

2. A chlorine solution, freshly prepared by mixing 1½ cups of household bleach in 1 gallon of water (or a 1:10 solution). Chlorine solutions should be prepared fresh daily.

During cleaning, wear rubber, latex, vinyl or nitrile gloves Spray rodent urine and droppings with a disinfectant or chlorine solution until thoroughly soaked. To avoid generating aerosols, do not vacuum or sweep surfaces until they have been disin-fected. Use a paper towel to pick up the urine and droppings. Place paper towels in sealable garbage bags. Treat waste as biohazardus material waste and properly dis-pose of items (such as capture bags and gloves) that cannot be completely disinfected.

Except in remote area, burying and incineration are not appropriate means of disposal (FSH 6709.11 sec. 53.01). Unless burned on-site, all potentially infectious waste ma-terial should be double-bagged in plastic bags. These bags should then be labeled as infectious and disposed of in accordance with local regulations for infectious waste (FSH 6709.11 sec. 53.01). After the rodent droppings and urine have been removed, disinfect items that might have been contaminated by rodents or their urine and drop-pings.

--- Spray floors and horizontal surfaces with a disinfectant or chlorine solution.

---Do not sweep or vacuum until the area has been soaked with disinfectant (bleach solution) Carpets and furniture should be disinfected or shampooed. Launder bedding and clothing and bedding in a dryer to aid in disinfection( FSH 6709.11 53.73a)

--- Leave books, papers, and other items that cannot be cleaned with a liquid disinfec-tant outdoors in the sunlight for several hours. After that time, the virus should no longer be infectious.

--- Disinfect gloves before removing them with disinfectant or soap and water. After removing the clean gloves, thoroughly wash bare hands with soap and water.

--- Clothes worn during the clean-up should be washed in hot water with detergent and dried on high heat or hung in sunlight to dry

END OF SECTION 01790

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. Digging two holes for concrete toilet vaults.

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

02222 – 2

STRUCTURAL EXCAVATION, BACKFILL AND COMPACTION

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, 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. 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 hand tamp compaction tool.

END OF SECTION 02222

04402-1

STACKED STONE AND MORTAR FOUNDATIONS

SECTION 04402

STACKED STONE AND MORTAR FOUNDATIONS

PART 1 - GENERAL

1.1 DESCRIPTION

A. The work of this section consists of reconstructing stacked stone and mortar foundations on building 8104 and 8105.

B. The foundations shall match the previously reconstructed foundations of buildings 8106 and 8107 in both appearance and workmanship.

1.2 PROJECT CONDITIONS

A. Lay masonry only when ambient temperature is above 40 degrees F. Protect work from cold and frost, ensuring that mortar will harden without freezing.

PART 2 - PRODUCTS

2.1 STONE

A. Use existing stone on site. If more stone is needed use fractured rock to match existing that is sound, hard, and well shaped.

2.2 MORTAR

A. Use type “M” mortar

1. 3 parts Portland cement, 1 part lime and 12 parts sand

2. Mortar shall have a minimum compressive strength of 2500 psi.

3.1 EXCAVATION AND BACKFILL

A. Extend foundation walls at least 18” below grade on all four sides of cabins.

1. Where sill logs are in contact with the ground excavate 18” below the log.

B. Remove all rocks from beneath the porches.

3.2 LAYING STONE

A. Roughly shape stone with a hammer to approximate fit. Knock off weak portions.

Knob corners and returns square.

B. Use large stones for bottom courses and large selected stones at the corners. Generally decrease size of stone from bottom to top.

C. Protect stone faces from staining. When work is not in progress, keep tops of walls covered with approved nonstaining waterproof coverings. When work resumes, clean

04402-2

STACKED STONE AND MORTAR FOUNDATIONS

loose mortar from stone. Where new masonry joins partially or totally set masonry, remove loose mortar and dampen stone before laying new course.

D. Lay even-colored, sound, quarry seam faces to weather on face of wall. Lay face stones in random bond with maximum 1-inch-wide joints. Fit small stones into irregular spaces to give appearance of random sizes and shapes.

E. Build walls straight and plumb on both faces, building in anchors, dowels, and work of other trades. Set each stone level in a full bed of mortar; tap to an even bearing. Fill joints with mortar leaving no voids. Keep faces of stone free of mortar. Rake face stone joints 3/4 inch in depth. Point joints and rub with a stiff broom or brush to remove trowel sheen.

3.3 CLEANING

A. Scrub completed wall with fiber brushes, using a mild alkaline abrasive cleaner that contains no caustic or harsh fillers. Begin at top and work down. Clean stone thoroughly, leaving no mortar stains or traces of cleaning compound

END OF SECTION 04402

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 underlayment.

10. Plywood backing panels.

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. Power-driven fasteners.

3. Powder-actuated fasteners.

PART 2 - PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

A. Rough Sawn Lumber (buildings 8104 and 8105 porches)

1. Provide rough sawn ponderosa pine lumber for reconstructing existing porches in kind. Lumber shall be sound and free of large knots, splits or checks.

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

06100 - 2

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)

C. Wood Structural Panels:

thickness or less, unless otherwise indi-cated.

1. Plywood: 5/8”, either DOC PS 1 or DOC PS 2, unless otherwise indicated.

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

2.2 WOOD-PRESERVATIVE-TREATED MATERIALS

A. Bora-Care or approved equal.

2.3 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

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.

06100 - 3

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. Sheathing: Nail to wood rafters.

2. Underlayment: self-adhering, self-sealing underlayment, similar to “Grace Ul-tra”.

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

END OF SECTION 06100

06200 - 1

FINISH CARPENTRY

SECTION

FINISH CARPENTRY

06200

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Stairs and railings.

2. Paneling.

3. Installing window sashes in existing window frames

4. Installing doors in existing door jambs.

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 item below:

1. Single hung window sash assemblies.

2. Window locks for double hung windows.

3. 6-panel doors (both interior and exterior)

4. Door hinges for 6-panel doors

5. Door knob passage sets for 6-panel doors.

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."

06200 - 2

FINISH CARPENTRY

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

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

2.2 STAIRS AND RAILINGS

A. Exterior Stair Treads: 1-1/4-inch (32-mm)

B. Exterior Railings: Clear, kiln-dried, pressure-preservative-treated, southern yellow pine railing stock of pattern indicated.

, kiln-dried, pressure-preservative-treated, southern yellow pine, B & B stepping with half-round nosing.

2.3 MISCELLANEOUS MATERIALS

A. Fasteners for Exterior Finish Carpentry: Provide nails of hot-dip galvanized steel.

PART 3 - EXECUTION

3.1 PREPARATION

A. Condition finish carpentry to average prevailing humidity conditions in installation areas before installation, for a minimum of 24 hours.

B. Prime and backprime lumber for painted finish exposed on the exterior. Comply with requirements for surface preparation and application in Division 9 Section "Painting."

3.2 INSTALLATION

A. Install finish carpentry level, plumb, true, and aligned with adjacent materials. Use concealed shims where required for alignment. Scribe and cut finish carpentry to fit adjoining work. Refinish and seal cuts.

B. Repair damaged or defective finish carpentry where possible to eliminate functional or visual defects. Where not possible to repair, replace finish carpentry. Adjust joinery for uniform appearance.

END OF SECTION 06200

07131 - 1

SELF-ADHERING SHEET WATERPROOFING

SECTION

SELF-ADHERING SHEET WATERPROOFING

07131

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes self-adhering, rubberized-asphalt sheet waterproofing.

B. Two layers of self-adhering sheet waterproofing shall be installed under the historic metal shingles on the four cabins at Crescent Mining Camp. The first layer, applied to clean, smooth plywood substrate, shall be a cold applied, self-adhering membrane composed of a high strength polyethylene film coated on one side with a layer of butyl rubber adhesive and interwound with a disposable release sheet. The second layer shall be applied directly to the first layer, with the seams offset from the first layer by at least 4”, and shall be an SBS-modified bitumen utility sheet that forms a tight seal around fasteners.

1.2 SUBMITTALS

A. Product Data: Include manufacturer's written instructions for evaluating, preparing, and treating substrate, technical data, and tested physical and performance properties of waterproofing.

1.3 PROJECT CONDITIONS

A. Environmental Conditions: Apply waterproofing within the range of ambient and substrate temperatures recommended by waterproofing manufacturer. Do not apply waterproofing to a damp or wet substrate.

1.4 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to replace waterproofing material that does not comply with requirements or that does not remain watertight for period of five years after date of Substantial Completion.

PART 2 - PRODUCTS

2.1 SELF-ADHERING SHEET WATERPROOFING

A. Cold applied, self-adhering membrane composed of a high strength polyethylene film coated on one side with a layer of butyl rubber adhesive and interwound with a disposable release sheet. Thickness- 30 mil, tensile strength- 250 psi.

1. Available Products: Grace Ultra, or an approved equivalent product.

07131 - 2

SELF-ADHERING SHEET WATERPROOFING

B. SBS-Modified Bitumen utility sheet designed for easy installation on decks with slopes exceeding 3 inches per foot that forms a watertight seal around mechanical fasteners.

1. Available Products: Tamko Nail-Fast, or an approved…