01010_Summary AG-82B1-S-10-0280-00004.doc

SOLICITATION AG-82B1-S-10-0280

AMENDMENT 000004

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.

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 questionnaires 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: 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.

2. Rehabilitation: focuses on the need to alter or add to a historic property to meet continuing or changing uses while retaining the property's historic character.

1.2 PROJECT LOCATIONS

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.

1.3 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.

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: 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.

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.

1.5 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.

1.6 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.

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

01010 - 5

SUMMARY OF WORK