30_01_50_00_Temporary_Facilities_and_Controls_0008_0008.pdf

NATIONAL PARK SERVICE

REHABILITATION OF THE EIELSON VISITOR CENTER

DENALI NATIONAL PARK AND PRESERVE, ALASKA

Design Alaska, Inc. 01 50 00- 1

PART 1 GENERAL

1.1 SCOPE: SECTION 01 50 00 - TEMPORARY FACILITIES AND CONTROLS

A. Section includes requirements for temporary utilities, support facilities, and security and protection facilities.

1.2 DEFINITIONS

A. Permanent Enclosure: As determined by Contracting Officer (CO), permanent or temporary roofing is complete, insulated, and weathertight; exterior walls are insulated and weathertight; and openings are closed with permanent construction or substantial temporary closures.

1.3 USE CHARGES

A. General: The Park will furnish access to existing site power, potable water, and wastewater/sewer connections at no cost to the Contractor, subject to the limitations stated herein.

1.4 QUALITY ASSURANCE

A. Electric Service: Comply with National Electrical Contractors Association (NECA), National Electrical Manufacturers Association (NEMA), and Underwriter Laboratories (UL) standards and regulations for temporary electric service. Install service to comply with National Fire Protection Association (NFPA) 70.

B. Environmental Protection: Provide environmental protection as required by agency(ies) with jurisdiction and as indicated in Contract Documents. Coordinate with requirements of the following:

1. Regulatory Requirements.

2. Environmental Management.

3. Construction Waste Management.

1.5 PROJECT CONDITIONS

A. Temporary Use of Permanent Facilities: Installer of each permanent service shall assume responsibility for operation, maintenance, and protection of each permanent service during its use as a construction facility before NPS acceptance, regardless of previously assigned responsibilities.

SECTION 01 50 00

TEMPORARY FACILITIES AND CONTROLS

Amendment 0008

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SECTION 01 50 00

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PART 2 PRODUCTS

2.1 MATERIALS

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

B. Chain-Link Fencing: Minimum 2-inch (50 millimeters), 0.148-inch (3.76 millimeters) thick, galvanized steel, chain-link fabric fencing; minimum 6 feet (1.8 millimeter) high with galvanized steel pipe posts; minimum 2-3/8-inch (60 millimeters) OD (outside diameter) line posts and 2-7/8-inch (73 millimeters) OD corner and pull posts, with 1-5/8-inch (42 millimeters) OD top rails

C. Portable Chain-Link Fencing: Minimum 2-inch (50 millimeters), 9-gage, galvanized steel, chain-link fabric fencing; minimum 6 feet (1.8 millimeters) high with galvanized steel pipe posts; minimum 2-3/8-inch (60 millimeters) OD line posts and 2-7/8-inch (73 millimeters) OD corner and pull posts, with 1-5/8-inch (42 millimeters) OD top and bottom rails.

Provide galvanized steel bases for supporting posts.

D. Safety Barrier Fence: Orange plastic fence, minimum height, 4 feet.

E. Barrier Tape: Yellow tape Imprinted with "CAUTION: CONSTRUCTION AREA," manufactured by Reef Industries, Inc., Houston, Texas, or approved equal.

F. Wood Enclosure Fence: Plywood, 6 feet (1.8 millimeters) high, framed with four 2 by 4-inch (50 by 100 millimeters) rails, with preservative-treated wood posts spaced not more than 8 feet (2.4 millimeters) apart.

2.2 PRECONSTRUCTION DOCUMENTATION

A. See 01 32 33 PHOTO DOCUMENTATION

2.3 TEMPORARY FACILITIES

A. Field Offices, General: Prefabricated or mobile units with serviceable finishes, temperature controls, and foundations adequate for normal loading.

B. Contracting Officer’s Field Office: Furnish, install, maintain, heat, service, and remove a dedicated field office for use by the Contracting Officer, COR, Construction Management Representative (CMR), and other authorized Government personnel. The Government field office shall be a separate structure from the Contractor’s primary field office and shall be available for Government use before commencement of on-site construction activities requiring CMR presence. Maintain the office through completion of on-site

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Government construction-administration activities unless otherwise authorized by the Contracting Officer.

1. Provide a prefabricated, job-built, or mobile unit in excellent condition; structurally sound; weather-tight; insulated and suitable for the anticipated Denali environmental conditions; minimum 240 square feet.

2. Provide operable windows with security screens, adjustable ventilation, and secure exterior entrance door(s) with keyed deadbolts.

3. Provide heating capable of maintaining a habitable working environment throughout the period of use. Provide ventilation and cooling as necessary for seasonal conditions.

4. Provide finished interior walls and ceiling and durable resilient flooring.

5. Provide safe exterior access, including steps, landing, handrails, and snow/ice protection as applicable.

6. Provide adequate electrical service and lighting, including a minimum of two quad electrical outlets with surge protection.

7. Provide one desk and office chair; one drafting/work table and stool; two guest chairs; locking file storage; shelving; drawing/document storage; and coat storage.

8. Provide an under-counter refrigerator; fire extinguisher; first-aid kit; trash receptacles; and other ordinary furnishings necessary for Government field-office use.

9. Provide reliable Contractor-furnished internet service suitable for Government project administration, including access to the NPS/DSC project-management system, electronic documents, email, and virtual meetings. Maintain service for the duration of Government field-office use.

10. Provide electrical power and other temporary utilities necessary for continuous operation of the field office. Temporary utility service for the Government field office shall not reduce or interfere with required service to construction operations or existing NPS facilities.

11. Maintain the office in clean, safe, weather-tight, and serviceable condition. Provide routine trash removal and corrective maintenance throughout the period of use.

12. Locate the field office at EVC or another location approved by the Contracting Officer that provides practical access to the Work and complies with staging, resource-protection, and Park requirements.

C. Storage and Fabrication Sheds: Temporary weather tight sheds or other covered facilities for storage of materials subject to weather damage. Number and size of structures shall be subject to CO's approval.

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D. Toilets: Sufficiently lighted and ventilated toilet facilities in weatherproof, sight proof, handicap accessible, sturdy enclosures with privacy locks.

1. Provide separate toilet facilities for men and women.

2. The toilets shall resist tipping caused by wind and/or wildlife and doors shall be secured closed when not in use.

2.4 EQUIPMENT

A. Fire Extinguishers: Portable, UL rated; with class and extinguishing agent as required by locations and classes of fire exposures.

B. Heating, Ventilation, and Air Conditioning (HVAC) Equipment: Use of temporary heaters and ventilators with individual space thermostatic control is prohibited unless approved by CO.

2.5 STAGING

A. Provide staging area plans for approval by CO prior to mobilization. Include details of temporary facilities, utilities, fences, signage, barricades, erosion controls, revegetation, etc.

2.6 PARK REQUIREMENTS

A. Nesting Bird Protection:

1. Notify the CO a minimum of 7 days before disturbing vegetation at each separate work site, including staging areas, housing areas, and/or the project site.

2. Unless the vegetation disturbance will be confined to an area within 15 feet of the edge of an established roadway and/or the disturbance will occur entirely between the dates of August 1 and April 30, an NPS Wildlife Biologist will inspect the area for the presence of nesting birds. Do not commence vegetation disturbance until the Wildlife Biologist has completed the inspection and the CO has authorized work to proceed. If nesting birds are found, the Wildlife Biologist will either remove or relocate the nest(s) or suspend work within the affected area.

3. If active bird nests are encountered in the project area during construction, immediately suspend all construction operations within 100 feet the discovery site and notify the CO. Await CO direction before resuming work in the affected area.

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B. Wildlife approach distances:

1. Do not intentionally approach wildlife. Maintain the following minimum safe distances:

a. Bears - 300 yards. If a bear traveling in your direction comes within 300 yards, move to the safety of a hard-sided structure or vehicle.

b. Sheep – 100 yards

c. Moose, caribou, and wolves – 25 yards

C. Reporting wildlife encounters:

1. Immediately report wildlife encounters to the CO in the following instances:

a. Any encounter occurring at less than the approach distances listed above.

b. Any bear or wolf encounter wherein the animal’s behavior appears to be altered by the presence of a human.

c. Any instance of an animal contacting a human, damaging property, displaying signs of aggression, or obtaining access to human or pet food or garbage.

2. Report these encounters using the Bear-Human Interaction Management (BHIM) form or Wildlife Encounter Form (WEF), as appropriate. Electronic copies of these forms will be provided by the CO at the preconstruction conference.

D. Managing wildlife attractants:

1. Store all food, toiletries, and other potential wildlife attractants (e.g., petroleum products, antifreeze, personal hygiene items) in wildlife-proof containers, fully enclosed vehicles, or hard-sided buildings or structures, except during actual use.

Do not cook outside.

2. Protect outdoor temporary piping and wiring from wildlife damage by burying or routing though protective conduit. Securely store hoses used for conveyance of strongly scented fluids (e.g. sewage, petroleum products) when not in use.

Protect sewage holding tanks (including those within portable toilets) from access, damage, or overturning by wildlife. Close and securely lock doors to portable toilets when not in use.

3. Contain construction waste materials in dumpsters with solid lids or screen lids with openings no larger than 2 inches. Do not dispose of kitchen or other food wastes or scented substances in construction dumpsters.

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4. Dispose of kitchen and food waste and other scented substances only within fully liquidtight, bear-resistant dumpsters meeting the following requirements:

a. The lid or lids, and any man doors, must close tightly to prevent access by bears.

b. The lid or lids, and any man doors, must be:

1) Self-closing and self-latching; or

2) Capable of being completely closed and secured with a latching device.

3) Closed and secured when not in use

c. The latches for the lid or lids must be such that an adult bear using its claws or teeth will be unlikely to reach and operate the latch trigger mechanism.

d. Hinges and latches for lids must be sufficiently strong, and sufficiently affixed to the container, that they cannot be pried open by an adult bear using its claws or teeth. As a guideline, a lid that can be opened using a crowbar is not sufficient.

e. The container must be sufficiently stable or anchored as to prevent tipping or being dragged away by an adult bear.

f. Container and lid material must be of solid metal sheet of sufficient strength to prevent bears from chewing, battering, or crushing the container to gain access to contents.

g. Container must meet the standards developed by the Interagency Grizzly Bear Committee (IGBC) for Technical Evaluations of Metal Products or have been tested and certified as bear-resistant by the IGBC or the Living with Wildlife Foundation.

5. Regularly empty dumpsters to prevent accumulation of waste at the project site, staging, or contractor housing areas. Dispose of waste at a permitted landfill outside the Park boundaries.

E. Domestic animals and pets are not permitted on the project site, in staging areas, or in the contractor housing area. Comply with posted Park regulations regarding pets when in all other areas of the Park.

F. Drone (uncrewed aircraft system (UAS)), snowmachine, or ATV use within the park are prohibited.

G. Campfires are prohibited.

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H. Denali Park Road

1. General

a. The entrance to Denali National Park and Preserve is located at milepost (MP) 237.4 of Alaska Highway 3 (also called the George Parks Highway).

The park entrance is located roughly 237 road miles north of Anchorage, Alaska and 120 miles south of Fairbanks, Alaska. Access between the park entrance and the project site (MP 66), housing area (MP 70), and staging areas (EVC and MP 70) is exclusively via the Denali Park Road, a limited access road through federally designated wilderness.

b. The first 15 miles of the Park road (from the park entrance to the Savage River check station at MP 15) are paved and open to the public. The remaining 77 miles of the road is gravel and access by vehicle requires a park-issued road permit. The road consists of two traffic lanes with shoulders of variable width from MP 0 through MP 30. Beyond MP 30 the road narrows considerably. The road further narrows west of MP 66.

c. Travel on all portions of the Park Road beyond MP 3 is seasonally restricted by the presence of snow. Because of snow, the project site is generally inaccessible by road from October until April.

d. Any vehicles or equipment that have been in contact with vegetation or soil outside the park must be washed and inspected before entering the park to prevent the spread of invasive exotic plants. Any vehicles or equipment that have been used in areas known to contain invasive exotic species must be washed prior to their use in a different area of the park.

Vehicles and equipment that have only had contact with paved roads are exempt from this requirement.

2. Road Access Permits

a. Before travelling west beyond the Savage Check Station (MP 15), obtain a park-issued Road Access Permit for each project-related vehicle that will be operated on the Park Road, including all subcontractor, employee, service, and delivery vehicles.

b. Request permits through the CO at least 7 calendar days before planned travel beyond MP 15. Include the following information with each request:

1) Company name and address

2) Destination on Park Road

3) Driver’s name and relationship to the project

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4) Vehicle make, model, year, license plate number and state.

5) Desired permit start and end dates.

c. The CO will provide permits electronically via email. Print a color copy of the permit. The primary driver for each vehicle must sign the back of the permit. Affix the signed permit inside the windshield on the lower left (driver) side of the vehicle.

d. Failure to abide by the conditions of the permit may result in suspension or revocation of the permit or the driver’s status as an authorized user.

3. Driver Training Requirements

a. Each driver operating a vehicle on the Denali Park Road beyond MP 15 must view a Rules of the Road video, available online at https://www.nps.gov/dena/learn/photosmultimedia/denali-road-rules-video.htm.

b. All drivers must comply with the Denali National Park and Preserve Road Use Handbook. The CO will provide an electronic copy of the Road Use Handbook at the preconstruction conference.

4. Rules of the Denali Park Road

a. Definitions

1) Denali Park Road summer season – The time period between the Saturday prior to Memorial Day weekend and the second Thursday following Labor Day, or September 15, whichever comes first.

2) Oversize vehicle - Vehicles over 22 feet long and/or more than 8 feet wide and/or more than 12 feet tall, and any vehicle pulling a trailer.

b. Stop when passing the Savage River check station for screening by park staff. When the check station is unstaffed, sign in or out on the form provided at the check station.

c. Vehicle speed

1) Limit speed to 35 mph except where other speed limits are posted.

2) Slow to a “no dust” speed when passing bicycles, pedestrians, or workers along unpaved sections of the road.

3) Slow when passing wildlife on or near the road.

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d. Drive with vehicle headlights on at all times.

e. Yielding and right-of-way

1) On all sections of the Park Road, yield right-of-way to emergency vehicles with flashing lights activated and to working NPS road maintenance equipment

2) On the portion of the Park Road between the Teklanika River Bridge (MP 30) and the end of the road (MP 92):

a) Small vehicles (such as passenger cars, pickup trucks, and vans) shall yield to all large vehicles including buses, dump trucks, semi-trucks, and heavy equipment, whether working or not.

b) When large vehicles approach one another, right-of-way is determined by location along the road and direction of travel as shown in the following table:

3) Yield when approached by a vehicle having right-of-way using the following procedure:

a) Activate right turn signal to indicate your intention to yield.

b) Come to a complete stop in a safe place that will allow the oncoming vehicle to pass. Once stopped, activate hazard lights.

c) Allow the vehicle with right-of-way to completely clear your vehicle before proceeding.

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f. Overtaking and passing

1) Approach closer than recommended minimum following distance only when intending to pass.

2) Activate left turn signal to indicate intent to pass at least 100 feet in advance of passing.

3) Before passing, allow the vehicle being overtaken to activate right turn signal and come to a complete stop at a safe place.

4) Check that following and oncoming traffic is clear and that the road width ahead will allow a safe pass.

5) After overtaking the other vehicle, deactivate left turn signal and activate right turn signal and return to normal road position ahead of the overtaken vehicle.

g. During the summer season, do not operate oversize vehicles on the Denali Park Road west of the Teklanika River Bridge (MP 31) between the hours of 6 am and 10 pm unless authorized in writing by the CO. Request exceptions a minimum of 48 hours in advance. Ensure that approved oversize vehicles are accompanied by a pilot car.

h. West of the Teklanika River Bridge (MP 31), yield, pull to the right, and come to a complete stop for oncoming buses, heavy equipment, and emergency vehicles. Remain stopped until the oncoming vehicle has completely passed.

i. Stop all vehicles which arrive at posted wildlife crossing signs during the first 10 minutes of each hour between the hours of 6 am and 10 pm. For example, if a vehicle arrives at a posted wildlife crossing sign at 1:07 pm, the driver will stop and wait three minutes (until 1:10 pm) before proceeding. If a vehicle arrives at 1:27 pm, the vehicle may proceed past the sign without delay.

j. Do not park vehicles along the Denali Park Road except for short stops at designated rest areas or in case of emergency.

k. Limit use of engine compression brakes (“Jake brakes”) except as required for safety. Vehicles using compression brakes must have functional and unmodified exhaust systems.

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5. Load restrictions

a. The bridges on the Denali Park Road are subject to load restrictions as listed in Table 1.

b. The Government may, without prior notification, establish temporary weigh stations for the purpose of confirming adherence to Park Road weight restrictions.

c. Any axle load exceeding the legal limit of 20,000 pounds, shall require an Overload Permit Request. In general, any load over 80,000lb JBW would also be considered an overload and need to be checked by the bridge team for safe crossing of the Park’s bridges. Permit forms will be provided by the CO to the Contractor on request.

PART 3 EXECUTION

3.1 INSTALLATION, GENERAL

A. Locate facilities where they will serve Project adequately and result in minimum interference with performance of the Work. Relocate and modify facilities as required by progress of the Work.

B. Provide each facility ready for use when needed to avoid delay. Do not remove until facilities are no longer needed or are replaced by authorized use of completed permanent facilities.

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3.2 TEMPORARY UTILITY INSTALLATION

A. General:

1. The Park will make available existing site power, potable water, and wastewater/sewer connections for Contractor use at the EVC project site only at no cost to the Contractor, subject to seasonal availability, system capacity, weather conditions, and operational limitations of the existing remote site utility systems.

2. Park-furnished utilities are provided to support logistical efficiency and reduce project cost; however, the Contractor remains responsible for providing, supplementing, or replacing temporary utilities, services, and facilities necessary to perform the Work when Park-furnished utilities are unavailable, insufficient, interrupted, or outside the seasonal operating window.

3. The Contractor shall coordinate all temporary utility connections with the CO and Park staff prior to connection or use. Do not connect to, modify, bypass, overload, or otherwise alter existing utility systems without prior CO approval.

4. No Park-furnished utilities will be available at MP 70. Contractor to provide all temporary utilities, services, and facilities necessary at this site.

B. Seasonal Availability and Limitations

1. Existing water and wastewater systems are typically available from approximately May through September; however, availability is weather-dependent and may be limited, delayed, interrupted, or discontinued due to freezing temperatures, spring flow, seasonal startup/shutdown requirements, maintenance, or other operational conditions.

2. The Contractor shall not rely on uninterrupted availability of Park-furnished utilities. The Contractor shall provide temporary power, water, sanitary facilities, wastewater handling, or other support services as necessary to maintain construction operations outside of seasonal availability or during periods when Park-furnished utilities are unavailable or insufficient.

3. No additional compensation or time extension will be granted solely due to the Contractor’s failure to plan for seasonal, weather-dependent, or capacity-related limitations of the existing utility systems.

C. Power:

1. The Park will furnish access to existing site power for Contractor use at no cost, subject to availability and system capacity. The Park will keep the existing 26kw propane generator at the site fueled for operation of the existing site power system.

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2. NPS will provide a designated connection point to the existing propane generator.

The generator characteristics are:

a. 26 kW nameplate capacity;

b. 100 amp;

c. 120/240 volt; and

d. Single phase.

3. The generator also serves the existing NPS water-treatment system. NPS operational loads will take priority, and the full generator capacity should not be represented as continuously available to the Contractor.

4. The Contractor shall:

a. Determine its anticipated electrical demand;

b. Have all connections completed by a qualified electrician;

c. Provide all temporary panels, disconnects, overcurrent protection, grounding, wiring, and distribution equipment;

d. Not exceed the capacity of the designated connection;

e. Submit a load schedule and one-line connection diagram for NPS review;

f. Provide supplemental or backup power when its demand exceeds the available capacity or during interruptions/maintenance; and

g. Maintain access to the generator, mechanical building, propane tanks, and related NPS equipment.

5. NPS will provide propane and perform routine generator maintenance, generally at intervals of approximately 200 to 250 operating hours. The Contractor shall anticipate temporary outages during scheduled and unscheduled maintenance.

Routine service is expected to require approximately two hours.

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6. The Contractor shall protect all Government-furnished utility systems, equipment, and connection points from damage resulting from its operations.

Any damage caused by the Contractor, its subcontractors, employees, or equipment shall be promptly reported to the CO and repaired or restored, at the Contractor’s expense, to a condition equal to or better than that existing before Contractor use. The Contractor and NPS shall jointly document and promptly notify the CO of any pre-existing damage, deficiency, abnormal operating condition before initial contractor use and after final disconnection, or utility-system issue discovered before or during use and shall not perform repairs or modifications to Government-owned systems unless specifically authorized by the CO. Failure to document a visible pre-existing condition before connecting to or using a Government-furnished utility may result in the condition being attributed to Contractor operations.

7. Contractor use of Government-furnished power shall be limited to available capacity. The Contractor shall provide temporary power, generators, distribution, extension cords, panels, fuel, and related equipment as necessary when Government-furnished power is unavailable, insufficient, or not suitable for the Contractor’s means and methods.

a. Contractor provided generator: Do not operate electric generating plants which operate at a noise level in excess of 60 decibels (dB) measured on the A-weighted scale at a distance of 50 feet.

D. Storm Sewers and Drainage:

1. Provide temporary utilities to remove effluent lawfully.

E. Telephone Service:

1. No telephone service is available on site for Contractor's use.

F. Potable Water:

1. The Park will provide access to the existing potable-water service point in Mechanical Room 121. The service point has a maximum available flow of approximately 25 gpm and an anticipated pressure of approximately 40 psi. These are operating conditions rather than guaranteed minimums. Any updated pressure or flow information will be incorporated by amendment.

2. NPS staff will perform the required daily chlorine-residual testing at the NPS potable-water service point. The Contractor shall provide NPS personnel with safe and unobstructed daily access to the service point.

3. The Contractor shall be responsible for:

a. All connections and temporary distribution downstream of the NPS service point;

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b. Determining its anticipated potable-water demand;

c. Providing any required tanks, pumps, hoses, treatment, freeze protection, or temporary storage;

d. Maintaining the sanitary condition of its temporary system; and

e. Preventing cross-connections with the non-potable-water system or other potential sources of contamination.

4. For bidding purposes, assume that NPS potable-water service will be available from May 1 through September 30. Actual startup, shutdown, and continuity of service will remain dependent on weather, freezing conditions, system operations, maintenance, water availability, and other site conditions. The Contractor shall provide all water required outside this period and during interruptions.

5. The Contractor may also be permitted to haul potable water from the Toklat fill location, with a maximum anticipated availability of up to 4,000 gallons per day.

The Contractor shall provide all transportation, potable-water-rated tanks, hoses, pumps, and related equipment. This alternative should be identified as subject to confirmation of availability and NPS operational needs unless the Park is prepared to guarantee the full daily quantity.

6. The Contractor shall protect all Government-furnished utility systems, equipment, and connection points from damage resulting from its operations.

Any damage caused by the Contractor, its subcontractors, employees, or equipment shall be promptly reported to the CO and repaired or restored, at the Contractor’s expense, to a condition equal to or better than that existing before Contractor use. The Contractor and NPS shall jointly document and promptly notify the CO of any pre-existing damage, deficiency, abnormal operating condition before initial contractor use and after final disconnection, or utility-system issue discovered before or during use and shall not perform repairs or modifications to Government-owned systems unless specifically authorized by the CO. Failure to document a visible pre-existing condition before connecting to or using a Government-furnished utility may result in the condition being attributed to Contractor operations.

G. Non-Potable Water

1. NPS will install a backflow preventer and provide a designated stub-out connection for non-potable construction water. NPS will label the source as

“NON-POTABLE WATER.”

2. NPS will conduct a pressure reading and flow test at the designated connection point. The resulting information will be incorporated into the contract documents or provided by amendment. Until testing is complete, no minimum flow or pressure should be represented to prospective contractors.

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3. The Contractor shall:

a. Provide all temporary piping, hoses, tanks, pumps, storage, distribution, and freeze protection downstream of the NPS connection;

b. Clearly label its downstream non-potable piping, tanks, hoses, and outlets;

c. Prevent any connection between the non-potable and potable-water systems; and

d. Use the non-potable water only for purposes permitted by applicable requirements and product manufacturers.

4. The Contractor shall protect all Government-furnished utility systems, equipment, and connection points from damage resulting from its operations.

Any damage caused by the Contractor, its subcontractors, employees, or equipment shall be promptly reported to the CO and repaired or restored, at the Contractor’s expense, to a condition equal to or better than that existing before Contractor use. The Contractor and NPS shall jointly document and promptly notify the CO of any pre-existing damage, deficiency, abnormal operating condition before initial contractor use and after final disconnection, or utility-system issue discovered before or during use and shall not perform repairs or modifications to Government-owned systems unless specifically authorized by the CO. Failure to document a visible pre-existing condition before connecting to or using a Government-furnished utility may result in the condition being attributed to Contractor operations.

H. Wastewater/Sewer:

1. The Park will make the existing 5,000-gallon septic tank available for the Contractor’s use. The Contractor shall develop and submit a proposed temporary sanitary connection based on its anticipated camp population, fixtures, wastewater flows, and means and methods.

2. Before making any connection, the Contractor shall submit a temporary sanitary-connection plan that:

a. Identifies anticipated average and peak daily wastewater flows;

b. Identifies the proposed connection point and routing;

c. Provides a watertight, properly sloped, and adequately supported line;

d. Addresses freeze protection, pedestrian and vehicle traffic, wildlife, and trip hazards;

e. Prevents spills, leakage, and unauthorized access;

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f. Maintains access for NPS inspection and maintenance;

g. Preserves a separate and accessible septic pump-out point for NPS staff (NPS to Pump); and

h. Maintains the east walkway for pumper-truck and trail-system access.

3. The plan shall be submitted to NPS for coordination and acceptance. NPS acceptance will not relieve the Contractor of responsibility for its design, installation, operation, or compliance with applicable requirements.

4. If NPS identifies deficiencies in the proposed arrangement, the Contractor shall revise and resubmit its plan to address the identified concerns. NPS will provide pumping services to manage and maintain the septic for clean out. Use of an independent wastewater collection and disposal system will be required only if the Contractor’s proposed wastewater demand cannot be accommodated by the existing system capacity. Signs of misuse or disposing of debris

5. The Contractor shall protect all Government-furnished utility systems, equipment, and connection points from damage resulting from its operations.

Any damage caused by the Contractor, its subcontractors, employees, or equipment shall be promptly reported to the CO and repaired or restored, at the Contractor’s expense, to a condition equal to or better than that existing before Contractor use. The Contractor and NPS shall jointly document and promptly notify the CO of any pre-existing damage, deficiency, abnormal operating condition before initial contractor use and after final disconnection, or utility-system issue discovered before or during use and shall not perform repairs or modifications to Government-owned systems unless specifically authorized by the CO. Failure to document a visible pre-existing condition before connecting to or using a Government-furnished utility may result in the condition being attributed to Contractor operations.

I. Work-camp authorization on Federal Lands

1. Alaska drinking-water, wastewater, and solid-waste requirements apply to camps located within a national park in addition to applicable federal requirements.

2. AkDEC currently classifies camps as follows:

a. Short-term camp: 24 or fewer occupants operating in the same location for 14 days or less; AkDEC camp authorization is not required.

b. Small camp: 24 or fewer occupants operating in the same location for more than 14 days; AkDEC authorization is generally required.

c. Large camp: 25 or more occupants; standard permitting, plan review, and authorizations apply.

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3. The determining factor is whether workers will reside or lodge at the EVC site or MP 70. Before mobilization, the Contractor shall disclose its proposed:

a. Camp locations;

b. Maximum population;

c. Duration;

d. Lodging and food-service arrangements;

e. Potable- and non-potable-water demand;

f. Wastewater approach; and

g. Solid-waste management approach.

4. The Contractor shall determine the applicable AkDEC camp classification and obtain all required authorizations, permits, plan reviews, and approvals before establishing or occupying a camp. Copies of all required approvals shall be submitted to the CO before camp operation.

3.3 SUPPORT FACILITIES INSTALLATION

A. General: Comply with the following:

1. Provide non-combustible construction or 30 feet of fire separation for offices, shops, and sheds located within construction area or within 50 feet of building lines. Comply with NFPA 241.

2. Maintain support facilities until near Substantial Completion. Remove structures, equipment, and furnishings, and terminate services after punch list is 100 percent completed or when directed by CO. Personnel remaining after Substantial Completion will be permitted to use permanent facilities, under conditions acceptable to CO.

B. Traffic Controls: Erect and maintain barricades, lights, danger signals, and warning signs in accordance with Manual on Uniform Traffic Control Devices (MUTCD), Part IV, latest edition.

1. Protect existing site improvements to remain including curbs, pavement, and utilities.

2. Maintain access for fire-fighting equipment and access to fire hydrants.

3. Illuminate barricades and obstructions at night; keep safety lights burning from sunset to sunrise.

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4. Adequately barricade and post open cuts in or adjacent to thoroughfares.

5. Cover pipes, hoses, and power lines crossing sidewalks and walkways with troughs using beveled edge boards.

6. Install Barrier Tape where directed by CO. Keep a minimum of two rolls on site.

C. Public Access / Pedestrian Access

1. The Contractor shall maintain pedestrian access through the east driveway for hikers and visitors accessing the trail network south of the EVC.

2. Pedestrian access shall remain safe, clearly delineated, and separated from active construction operations to the maximum extent practicable. Provide temporary signage, barriers, fencing, flagging, or other controls as necessary to direct pedestrians through or around the work area while maintaining public safety.

3. Temporary closures, restrictions, or rerouting of pedestrian access shall be coordinated in advance with the CO and Park staff and shall not be implemented without CO approval, except where immediate action is necessary to protect life, safety, or property.

4. The Contractor shall incorporate pedestrian access requirements into the Site Utilization Plan, Accident Prevention Plan, and any temporary traffic/control plans required by the Contract Documents.

D. Parking: Use designated areas of existing shown on drawings parking areas for construction personnel.

E. Waste Disposal Facilities: Provide waste-collection containers in sizes adequate to handle waste from construction operations. Comply with requirements of agency(ies) with jurisdiction.

3.4 SECURITY AND PROTECTION FACILITIES INSTALLATION

A. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

B. Cleaning of Equipment: Thoroughly clean vehicles and construction equipment to remove all visible traces of soil, plant material, grease, oil, and other foreign contaminants before entry into the Park. Maintain cleaning and inspection records. Request inspection of vehicles and equipment by the CO a minimum of 48 hours in advance of planned entry to the Park.

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C. Temporary Erosion and Sedimentation Control: Refer to Section 01 57 23 "Temporary Storm Water Pollution Prevention".

D. Tree and Plant Protection: Refer to Section 01 11 00 "Summary of Work".

E. Pest Control: Follow NPS requirements to minimize attraction and harboring of rodents, roaches, and other pests and perform extermination and control procedures at regular intervals so Project will be free of pests and residues at Substantial Completion. Perform control operations lawfully, using environmentally safe materials.

F. Site Enclosure Fence: Before construction operations begin, furnish and install chain link fencing to prevent people and animals from easily entering site except by entrance gates.

1. Extent of Fence: As required to restrict vehicle access to entire Project site.

2. Locate vehicular gates to avoid interference with traffic on public thoroughfares.

3. Locate pedestrian entrance gates as required to provide controlled personnel entry.

G. Security Enclosure and Lockup: Install substantial temporary enclosure around partially completed areas of construction. Provide lockable entrances to prevent unauthorized entrance, vandalism, theft, and similar violations of security.

H. Temporary Partitions: Provide floor-to-ceiling dustproof partitions to limit dust and dirt migration.

1. Construct dustproof partitions with 2 layers of 3-mil (0.07-millimeters) polyethylene sheet on each side. Cover floor with 2 layers of 3-mil (0.07-millimeters) polyethylene sheet, extending sheets 18-inches (460 millimeters) up the sidewalls. Overlap and tape full length of joints. Cover floor with fire-retardant plywood.

2. Protect air-handling equipment.

3. Provide walk-off mats at each entrance through temporary partition.

I. Temporary Fire Protection: Install and maintain temporary fire-protection facilities of types needed to protect against reasonably predictable and controllable fire losses.

Comply with NFPA 241.

1. Responsible Person: Capable and qualified person shall be placed in charge of fire protection. Responsibilities shall include locating and maintaining fire protective equipment and establishing and maintaining safe torch cutting and welding procedures.

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2. Tobacco Use, Smoking, and Vaping: Smoking within buildings or temporary storage sheds is prohibited.

3. Supervise hot work processes, including heat treating, grinding, thawing pipe, use of powder-driven fasteners, welding operations, combustion-type temporary heating units, and similar sources of fire ignition according to requirements of the Denali National Park Structural Fire Management Plan. At least 14 days prior to planned commencement of hot work on Park property, submit a Hot Work Permit request (Form HW-1) to the CO. Describe location of the proposed hot work, type of work to be performed, precautions that will be taken to prevent fire or explosion, and contact information for the responsible party. Hot work may not commence until the permit is signed by the Park Structural Fire Coordinator and returned to contractor via the CO. Copies of the Form HW-1 and Structural Fire Management Plan are available from the CO upon request.

4. Develop and supervise overall fire-prevention and -protection program for personnel at Project Site. Review needs with local fire department and establish procedures to be followed. Instruct personnel in methods and procedures. Post warnings and information.

5. Hazard Control: Take necessary precautions to prevent fire during construction.

Do not store flammable or combustible liquids in existing buildings. Provide adequate ventilation during use of volatile or noxious substances.

6. Spark Arresters: Equip gasoline or diesel-powered equipment used during periods of potential fire hazards or in potential forest and grass fire locations with spark arresters approved by United States Department of Agriculture (USDA) Forest Service.

a. Written determinations of periods and areas of potential fire hazard will be issued by CO.

7. Buildings: Furnish a minimum of one extinguisher for each 1,500 square feet of area or major fraction thereof.

a. Travel distance from any workstation to nearest extinguisher shall not exceed 75 feet.

8. Vehicles and Equipment: Provide one extinguisher on each vehicle or piece of equipment.

3.5 OPERATION, TERMINATION, AND REMOVAL

A. Supervision: Enforce strict discipline in use of temporary facilities. Minimize waste and abuse, limit availability of temporary facilities to essential and intended uses.

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B. Maintenance: Maintain facilities in good operating condition until removal.

1. Maintain operation of temporary enclosures, heating, cooling, humidity control, ventilation, and similar facilities on 24-hour basis where required to achieve indicated results and avoid possibility of damage.

C. Temporary Facility Changeover: Do not change over from using temporary security and protection facilities to permanent facilities until Substantial Completion.

D. Termination and Removal: Remove each temporary facility when need for its service has ended, when it has been replaced by authorized use of a permanent facility, or no later than Substantial Completion. Complete or, if necessary, restore permanent construction that may have been delayed because of interference with temporary facility. Repair damaged Work, clean exposed surfaces, and replace construction that cannot be satisfactorily repaired.

1. Materials and facilities that constitute temporary facilities are property of Contractor. NPS reserves right to take possession of Project identification signs.

2. At Substantial Completion, clean and renovate permanent facilities used during construction period.

3. Disturbed vegetation from temporary site areas as well as any temporary construction access areas (e.g. laydown, equipment storage etc.) shall be addressed through the prepared revegetation plan.

END OF SECTION