140P1221Q0091_Att_1_SAGU_Golden_Gate_Road_-_Grading_and_Addition_of_Surface_Material_SOW.docx

SAGUARO NATIONAL PARK

TUCSON MOUNTAIN DISTRICT (WEST)

PIMA COUNTY, AZ

SCOPE OF WORK

ADDITION OF SURFACE MATERIAL AND GRADING – GOLDEN GATE ROAD

SAGU TMD

PMIS 318986

NATIONAL PARK SERVICE

INTERMOUNTAIN REGION

Table of Contents

Project Overview Location and Facilities This project involves the Saguaro National Park (SAGU) West District (TMD), Golden Gate Road. This 1.5-mile section of Golden Gate Road is located on the Bajada Loop Drive between Sandario Road and Signal Hill Picnic Area. This section of road is two-way, and receives the largest amount of vehicle traffic on the Bajada Loop Drive.

Project Description This Scope of Work (SOW) is for the rehabilitation of a heavily used, 1.5-mile section of dirt road. The dirt road is 25 feet wide on average throughout the 1.5-mile section, although the actual width of the road varies along its length.

A. Existing conditions: Road base consists of mostly sand, where large potholes, washboard rutting, and shoulder erosion are all prevalent. This section of road frequently crosses natural drainages that intersect the road at perpendicular or close to perpendicular angles. Years of grading the road by park staff has resulted in a road base that is substantially lower than the surrounding desert.

The Contractor shall be responsible for all necessary work to achieve required project outcomes, including labor, equipment, tools, personal protective equipment (PPE), coordination with Authorities Having Jurisdiction (AHJ), internal construction permits, incidental design, travel, and other related expenses.

Summary of Requirements and Objectives Project requirements are described in this SOW. In addition, refer to Appendix A for project maps and photos. The Contractor is advised that these maps and photos are indicative only and do not represent as-built conditions. The Contractor shall site verify all existing conditions prior to commencing work on site.

Codes and Standards The Contractor is responsible for securing all needed permits and for ensuring compliance with all federal, state, and local codes and design standards, latest editions, including the following. If discrepancies are found between the SOW and codes or standards as referenced in this SOW, the codes or standards shall govern, unless noted otherwise.

A. International Building Code (IBC, International Code Council) (Most current edition) B. Occupational Safety and Health Administration (OSHA) C. US Department of Transportation Manual on Uniform Traffic Control Devices (MUTCD) D. Standard Specifications for the Construction of Roads and Bridges on Federal Highway Projects (FP-14). Applicable FP-14 standards for this project include:

a. Roadway Reconditioning: Sections 303.03 and 303.07

b. Crushed Aggregate: Section 703.06

c. Visual Inspection: Section 106.02

d. Measured or Tested Conformance: Section 106.04

e. Surface Preparation: Section 302.03

f. Placing Crushed Aggregate: Section 303.04

g. Compacting and Finishing Crushed Aggregate: Section 302.05

h. Acceptance: Section 302.6

i. Roadway Reconditioning: Section 303.07

j. Acceptance: Section 303.08

k. Water: Section 725.01

Approved Equivalents A. Contractor proposed equivalents shall be submitted for review during the solicitation period as Requests for Information (RFI). Proposed equivalents shall not be reviewed after the solicitation period.

Work and Material Specifications

Aggregate Base Course (ABC) A. Contractor shall build a 6-inch thick, compacted, aggregate base course on top of the existing roadway using weed-free certified, up to ¾ inch Aggregate Binder Course (ABC) or approved equivalent base course material.

1. Contractor shall approve base course material with COR prior to purchasing.

B. All aggregate and base course materials and installation practices shall comply with FHWA FP-14 Sections: 703.06 Crushed Aggregate, and 303.04 Placing Crushed Aggregate.

Grading A. Contractor shall grade existing roadway to remove irregularities and shape into a uniform surface. Road surface shall be free of potholes, washboarding, and protruding bedrock prior to installation of surface material. Grading shall include the rehabilitation of existing water bars, checks, and drains to slow water, reduce erosion, and eliminate pooling. Grading of existing road base shall comply with FHWA FP-14 Sections: 302.03 Preparing Surface, and 303.07 Roadway Reconditioning.

B. Contractor shall grade the applied aggregate to remove irregularities and shape into a uniform surface. Aggregate road surface shall be free of potholes, washboarding, and protruding bedrock and comply with FHWA FP-14 302.05 Compacting and Finishing Crushed Aggregate. Grading shall include the rehabilitation of existing water bars, checks, and drains to slow water, reduce erosion, and eliminate pooling in accordance with FHWA FP-14 Sections 303.03 Ditch Reconditioning and 303.07 Roadway Reconditioning.

C. Road shall be crowned or side-sloped accordingly to reduce sheet-flow erosion across the road surface. Avoiding loss of material via water erosion shall be the contractors main concern when grading the road surface.

Compaction A. Contractor shall compact road base in accordance with FHWA FP-14 Section 302.05 Compacting and Finishing Crushed Aggregate and 106.04 Measured or Tested Conformance.

B. Lifts shall not exceed 6 inches in compacted thickness.

Drainage A. Existing drainage points shall be retained and regraded and compacted for improved functionality.

B. Larger aggregate may be used at drainage points to reduce material erosion from rainwater. COR shall approve all changes in aggregate size at drainage points.

C. Contractor shall verify all proposed changes to drainage points with the COR.

D. All drains, waterbars, and checks shall comply with FHWA FP-14 Section 303.07 Roadway Reconditioning.

Additional Requirements Project Schedule A. The Contractor shall develop a detailed project schedule. This schedule shall include key milestones of the project, including start and finish dates, as well as proposed work times. The Contractor shall submit this schedule for review and approval prior to work proceeding. The Contractor shall actively maintain and update the schedule as required by the COR.

Safety

A. The Contractor shall submit the following prior to work proceeding and maintain a copy onsite during the project:

1. Project specific site safety plan. This plan shall include the following at a minimum:

a. Description of work

b. Nomination of project management staff, including site safety representative

c. Contact information for project management staff

d. Contact and location information for local emergency services

e. Description of anticipated high safety risk activities, including activity hazard analyses and safety control measures

f. Site protection and traffic control measures, including sketches to illustrate provisions.

B. Contractor shall be responsible for complete and strict compliance with Park policies and regulations.

C. Contractor shall maintain updated SDS’s on-site, for all chemicals present.

D. The Contractor shall fully comply with 29 CFR 1926.

E. The Contractor shall provide temporary safety barriers, as necessary, to provide a safe, hazard-free space for workers, pedestrians, and vehicles during construction.

F. The Contractor shall install protective measures to contain dust and debris during construction to assure a safe and irritant free work environment for building occupants. Return all areas to the original condition at the conclusion of work.

G. The Contractor shall remove and dispose of excess materials, debris, or waste at an approved off-site location in accordance with applicable Local, Tribal, State and Federal laws and regulations, and pay any related fees. Burning or burial of materials is not permitted.

H. All on site work shall comply with park COVID-19 policy. The Contractor shall provide a copy of their COVID-19 policy for work activities on site in accordance with park policy.

Security A. The Contractor shall secure equipment and materials. Limited storage space is available for the Contractor. However, the location of trailers, storage, sheds and staging areas shall be approved by the COR.

B. The Contractor shall comply with all Park security policies.

Quality Assurance A. The Contractor shall develop and maintain a quality control program to ensure services are performed in accordance with commonly accepted industry standards.

B. The quality of all work shall be the responsibility of the Contractor. Inspect and test all work as needed to ensure that the quality of materials, workmanship, work, finish, and functional performance complies with this SOW.

C. The Government shall periodically evaluate the Contractor’s performance in accordance with this SOW.

Travel A. Contractor shall be responsible for all travel related expenses for this project, including mobilization of equipment, tools, materials, labor, lodging, meals, and per diem.

Progress Payments A. Progress payments during work will be based on the percentage of work completed on items listed on the approved Bid Schedule, Schedule of Values or by Contract Line Item. Actual work completed and in place will form the basis for payment. Verification of the percentage (%) complete shall be initiated by the Contractor for approval by the COR. The Contractor shall make the computations for payment based on the Government’s verification of work completed and in place for any periods for which progress payments are requested.

B. The Contractor shall furnish the originals of all field notes, invoices and payroll reports, and all other records relating to the basis for payment, to the CO, who shall use them as necessary to determine the final amount of progress payments. The Contractor shall retain copies of all such material furnished to the CO.

Project Meetings A. Pre-construction meeting: The CO will arrange an on-site pre-construction meeting with the Contractor. Notes of the meeting shall be recorded by the Contractor and will be distributed after the meeting. The meeting agenda shall include the following as a minimum:

1. Park rules and regulations

2. Correspondence procedures

3. Progress meetings

4. Lines of authority

5. Roles and responsibilities

6. Coordination of sub-contractors

7. Submittal process

8. Project schedule

9. Progress payments

10. Acceptance/rejection of the work

11. Labor standards and labor law application

12. Payroll reports

13. Modifications

14. Accident Prevention Plan and accident reporting

15. Medical emergency processes, availability, emergency numbers, and contacts

16. Park permits, burning work waste, rules of the road, alcohol use, housekeeping, firearms, pets, natural and cultural resource concerns

17. Visitation, access, and public relations

18. Site and schedule coordination

Substantial Completion and Final Inspection A. Submit written certification that project, or designated portion of project, is substantially complete, and request, in writing, a final inspection. Upon receipt of written request that project is substantially complete, the CO will proceed with inspection within 10 calendar days of receipt of request or will advise the Contractor of items that prevent the project from being designated as substantially complete.

B. When work is determined to be substantially complete, the COR will prepare a list of deficiencies ("Punch List") to be corrected before final acceptance. The CO will issue a Letter of Substantial Completion. If work is not determined to be substantially complete, the CO will notify the Contractor in writing. After completing work, the Contractor shall resubmit certification and request a new final inspection.

C. If, following final inspection, the work is determined to be substantially complete, CO will prepare a list of deficiencies to be corrected before final acceptance and issue a Letter of Substantial Completion. Contractor shall complete the work described on the list of deficiencies within 15 calendar days, as weather permits. If the Contractor fails to complete the work within this time frame, the CO may either replace or correct the work with an appropriate reduction in the contract price or charge for re-inspection costs in accordance with the Inspection of Work clause of the contract.

Site Coordination Existing Conditions and Coordination A. The Contractor shall fully inform themself regarding all peculiarities and limitations of the spaces available for the installation of all work and materials furnished and installed under the contract.

Special Construction Conditions A. Contractor shall temporarily close Golden Gate Road at the intersection of Golden Gate and Sandario Roads while mobilized. Contractor shall not allow access of unauthorized personnel into the work zone.

B. Golden Gate Road shall not be reopened until construction is complete and contractor has demobilized.

C. Contractor requests to work afterhours shall be approved by the Contracting Officer’s Representative (COR). Requests to work outside normal business hours shall be submitted in writing to the COR not less than 48 hours in advance of the proposed after-hours work. Any SAGU staff overtime required may be charged back to the Contractor.

D. Contractor shall wash and inspect all vehicles, trailers, equipment, and attachments for dirt, mud, debris, and seeds, prior to mobilization. Vehicles, trailers, equipment, and attachments that contain dirt, mud, debris, or seeds will be turned away and not allowed onto the jobsite. COR will inspect all vehicles and equipment at a predetermined off-site location prior to allowing access to the jobsite.

Staging Areas A. Work sites shall be limited to the smallest feasible area. Ground disturbances and site management shall be carefully controlled to prevent undue damage to vegetation, soils, and archeological resources and to minimize air, water, soil, and noise pollution.

B. Confine storage of work materials and equipment to immediate vicinity of project site, unless directed otherwise by the COR. All staging areas shall be returned to pre-work conditions once work is complete. Standards for this, and methods for determining when the standards are met, shall be developed in consultation with the COR. If used, all temporary water, sewer, sanitary facilities, electric, and utility connections shall be completely removed upon project completion.

Work Zones A. Do not disturb portions of project site beyond areas in which the work is indicated. Work zones may require work barrier fencing, chain link, plastic or portable fencing as directed by the COR. The fencing shall define the work zone and confine activity to the minimum area required for work. All protection measures shall be clearly stated in the work documents, and workers will be instructed to avoid conducting activities beyond the work zone as defined by the work zone fencing.

B. Confine limits of work to the smallest safe and efficient working areas. Prevent unnecessary compaction of soils by equipment, and do not damage existing plantings or their root systems.

C. Establishment of a construction camp shall not be permitted.

Protection of Public A. The Contractor shall fence, barricade, or otherwise block off the immediate work area to prevent unauthorized entry. Erect and maintain fencing, barricades, lights, signals, and warning signs in accordance with MUTCD-2003 as applicable.

Parking of Work Vehicles A. Parking of vehicles shall be limited to existing parking lots, in designated areas close to the jobsite, and within approved staging area designated by COR.

Temporary Materials, Equipment and Services A. Temporary materials may be new or used but shall be adequate in capacity for the required usage, shall not create unsafe conditions, and shall not violate requirements of applicable codes and standards.

Hot Work Permit A. A Hot Work Permit in accordance with park policies is required for any welding, cutting, brazing, soldering or any work that generates sparks or excessive heat. Contractor shall provide at least a 24-hour advanced notice to obtain a Hot Work Permit. A capable and qualified person shall be placed in charge of fire protection. The responsibilities shall include providing and maintaining fire protection equipment and establishing and maintaining safe torch cutting and welding procedures.

Smoking A. Smoking is allowed only within Contractor vehicles.

Electricity A. SAGU will provide no electricity to the job site.

Telephone A. Cell phone service is occasionally not available at the project site. Contractor will require an alternate means of communication if emergency services are needed at the site.

Water A. Water is not available at the project site. Construction water will be available to the contractor at no cost from the hydrant at Picture Rocks Fire House No. 121, located at 7341 N. Sandario Rd, Tucson, AZ 85743. This hydrant is located 4.4 miles from the project area. There is no limitation to the quantity of water supplied.

B. All water supplied from PRFD hydrant will be used within Saguaro National Park.

Sanitary Facilities A. Restrooms are available at Signal Hill Picnic Area, located within the project area.

Hauling Restrictions A. Comply with all legal and local load restrictions in the hauling of materials.

B. Vehicles with a GVWR >12,000lbs will not be permitted on Picture Rocks or Gates Pass Roads.

1. These roads are actively patrolled by local and federal law enforcement agencies.

2. Any contractor or sub-contractor vehicle >12,000lbs GVWR ticketed on Picture Rocks or Gates Pass Roads will be turned around and not allowed onto the jobsite for the remainder of the project duration.

Waste Management A. Employ processes that ensure the generation of as little waste as possible. Minimize waste generation due to over-packaging, poor planning, breakage, mishandling, contamination, error, or other factors. Of the waste generated, as much as is economically feasible shall be reused, salvaged, or recycled. Waste disposal in landfills shall be minimized. All material unsuitable for recycling shall be disposed of, in a legal manner, at public or private dumping areas outside the park.

B. Contractor shall provide a solid waste diversion report estimating amount of construction waste produced (in pounds) to COR upon completion of project. Waste diversion report shall specifically include:

1. Total amount of solid waste generated on-site during period of performance.

2. Total percentage of waste diverted from landfill through reuse and/or recycling.

Submittals A. Submit the items listed below for review and approval within 14 calendar days of contract award and receipt of Contractor bonds (unless otherwise noted). Government review comments will be returned within 7 calendar days after receipt of submittals. Contractor mobilization or performance of work shall not begin until submittals have been approved.

1. Project schedule

2. Safety plan

3. List of all sub-contractors

4. Product data

a. aggregate base

5. Measured or Tested Conformance Report in accordance with FHWA FP-14 Section 106.04

6. Waste diversion report (submit after project completion) image1.wmf