B08_Solicitation_(Attach_1_Specifications).pdf

Div. 1 V. 2022-9-6 Page | 1

HOT SPRINGS NATIONAL PARK

HOT SPRINGS, AR

WHITTINGTON CREEK STREAMBANK RESTORATION

PMIS 218268

Drawing No: 128/80078

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

FINAL CONSTRUCTION DOCUMENTS

20 April, 2023

AutoCAD SHX Text and that I am a duly licensed Professional Engineer

AutoCAD SHX Text under the laws of the State of Arkansas.

AutoCAD SHX Text

DATE

AutoCAD SHX Text I hereby certify that this engineering document was

AutoCAD SHX Text prepared by me or under my direct personal supervision

AutoCAD SHX Text

IAN A. DILLION

AutoCAD SHX Text

OLSSON

AutoCAD SHX Text

P.E. 15715, EXPIRATION DATE: 12/31/2023

AutoCAD SHX Text Specification Divisions covered by this seal:

AutoCAD SHX Text 04-20-2023

AutoCAD SHX Text Divisions: 31 & 32

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TABLE OF CONTENTS

SIGNED AND SEALED STAMP PAGE………Pg. 2

DIVISION 01 - GENERAL REQUIREMENTS

01 10 00 DIVISION 01 SHORT FORM GENERAL REQUIREMENTS

DIVISION 31 – EARTHWORK

31 10 00 SITE CLEARING

31 37 19 STACKED GROUTED BOULDERS

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 92 00 TURF AND GRASSES

32 93 00 PLANTS

DRAWINGS

UNDER SEPARATE COVER.

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SECTION 01 10 00

DIVISION 1 SHORT FORM GENERAL REQUIREMENTS

PART 1 – GENERAL

ITEM 1 - DESCRIPTION OF WORK

1.1 Background: The project is to restore select areas of embankment along an approx. 300 linear feet stretch of Whittington Creek, approximately 6’-8’ in height, which consists of intentionally constructed natural stone slab, boulder, and cobble material. The embankment, located on both sides of the creek, was constructed as a CCC project in the 1930's.

1.2 Work Covered by the Contract Documents:

A. Project Location: HOT SPRINGS NATIONAL PARK

WHITTINGTON CREEK

HOT SPRINGS, ARKANSAS

B. Work consists of: Restoration of an approximately 6 to 8 feet tall historic creek embankment through either repair or replacement of the of intentionally constructed natural stone slab, boulder, and cobble material. The embankment has experienced varied bank fail degradation which will require two different magnitudes of restoration including approx. 293 linear feet of limited stone re-setting (repair) and approx. 219 linear feet of full disassembly and reconstruction (replacement) of the embankment.

C. Project consists of a BASE BID scope of work to restore embankment on the eastern portion of the creek reach within the project limits including 219 linear feet of embankment replacement and 57 linear feet of embankment repair. BID OPTION 1 scope of work, which

NPS may elect to award, is to repair 236 linear feet of embankment on the western portion of the creek reach within the project limits.

D. All work will be performed under a single contract.

E. Project will be performed under an approved permit from the State of Arkansas and USACE.

Permit will be obtained by National Park Service; however, Contractor shall receive a copy and will comply with all construction activity parameters cited in the permit to remain compliant with the conditions of the permit.

F. Period of performance: Work shall be completed within 150 calendar days of the start date provided on the Notice to Proceed. The period of performance is inclusive of 15 weather days (3 weather days per 30 days).

ITEM 2 – PROTECTING EXISTING UTILITIES

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2.1 Protecting Existing Utilities: Notify Contracting Officer (CO), Contracting Officer’s Representative

(COR) and utility companies as required to request location services prior to and to coordinate any excavation/digging operations, and/or for demolition if within Scope of Work.

2.2 Contractor shall be responsible for locating and preventing damage to known utilities on site.If contractor damage occurs, alert CO and COR as soon as safely possible, and repair utility at no additional expense to the Government. If damage occurs to an unknown utility, contact CO and

COR as soon as safely possible.

2.3 Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated below:

A. Notify CO and COR not less than two business days in advance of proposed utility interruptions.

B. Hours for Utility Shutdowns: Shutdowns shall not exceed 2 to 3 hours. Temporary provisions will be needed by the Contractor for periods longer than stated allowance or if required for critical systems as determined by COR.

ITEM 3 - CONTRACTOR’S USE OF PREMISES

3.1 Conduct of Operations: At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park

Service, and applicable park rules and regulations prescribed by the Park Superintendent.

Park Superintendent's Compendium:

https://www.nps.gov/hosp/learn/management/superintendents-compendium.htm

A. No signs or advertisements (except those specified herein and as required for safety) shall be displayed on the construction site or within the park unless approved by the Contracting

Officer.

B. Smoking is not permitted within any Federal building or within 25 feet of entrances, operable windows, or outdoor air intakes.

C. Public Use of Site: Contractor shall at all times conduct operations to ensure the least inconvenience to the public.

D. Keep all driveways and access for the private property owners a well as the public thoroughfare of the street clear and accessible.

3.2 On-site work hours: Work shall be generally performed during normal business working hours of

7 a.m. to 4:30 p.m., Monday through Friday, except when otherwise indicated.

A. Work on Saturdays, Sundays, Federal holidays, early morning, or at night may not be performed without prior consent from the CO and COR. Submit requests for work outside of the stated normal business hours to the CO and COR for approval at least 48 hours in advance of the work.

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The following Federal holidays are observed by the National Park Service:

New Year Day

Martin Luther King, Jr’s Birthday

Washington’s Birthday

Memorial Day

Juneteenth National Independence Day

Independence Day

Labor Day

Columbus Day

Veterans Day

Thanksgiving Day

Christmas Day

B. Note: Any of the above holidays falling on a Saturday will be observed on the preceding

Friday; holidays falling on Sunday will be observed on the following Monday. The specific day that each holiday is recognized for each year can be found at the following site: Federal

Holidays (opm.gov).

3.3 Contractor Use of Site:

A. General: Contractor shall have limited use of the site for construction operations. Limit use of premises to construction area as shown on site plan . Do not disturb portions of Project site beyond areas in which the Work is indicated.

B. Driveways and Entrances: Keep driveways, access roads, and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize use of driveways and entrances.

C. Note this site is surrounded by private properties. Keep all driveways and access for the private property owners a well as the public thoroughfare of the street clear and accessible.

D. One lane of Whittington Ave. may be temporarily closed (one hour maximum during non-peak traffic) for loading/unloading of construction equipment and materials. Contractor shall coordinate with contracting officer and city of Hot Springs and follow all city requirements for lane closure.

E. Provide dedicated individual in high vis with sign/flag in hand to direct traffic during temporary obstruction.

F. Define site disturbance area, including earthwork and clearing of vegetation, to:

1. Areas within the limits of construction shown on the site plan.

2. No more than 30 feet from the centerline of the waterway.

G. Parking

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1. Contractor shall restrict parking within the limits of construction to company vehicles and equipment only.

a. Do not park vehicles or equipment within the drip line of trees.

2. All other Contractor parking shall be limited to the public street or other parking lots available to the public.

3. The Contractor shall not park in locations that create obstructions with driveways or privately owned locations without written permissions from the property owners.

4. No parking of Contractor employee vehicles within park green space.

H. Utilities

1. General: Cost or use charges for temporary facilities and utilities shall be included in the Contract Sum as required.

2. Water Service: Water from existing water system is not available for use.

a. Water service is only available through existing fire hydrants if authorized by the City of Hot Springs. All metering and paying for services are to be arranged by the Contractor directly with the City.

b. Provide connections and extensions of services as required for construction operations without any additional permit costs.

c. Use resources wisely and minimize waste of water.

3. Electric Power Service: Electric power from existing system is not available for use.

a. There is no available electric power within the project area and contractor shall provide own provisions for electrical power,

b. Provide connections and extensions of service as required for construction operations without any additional permit costs.

c. Use power in a resourceful manner and avoid excess power waste.

4. Waste Operation:

a. Toilets: Contractor provided for contracting personnel, sufficiently lighted and ventilated toilet facilities in weatherproof, sight proof, handicap accessible (if required), sturdy enclosures with privacy locks. Coordinate with COR for approved location if not shown on attached site plan.

b. Waste Removal / Recycling: Contractor is responsible for removing all waste created by the project. Contractor shall recycle to the highest degree possible and empty dumpsters as necessary to avoid debris on site. Locate as shown on site plan or coordinated with COR.

I. Security and Protection facilities:

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

2. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the Project Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area.

Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

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3. Tree and Plant Protection: Provide Tree Protection fence at drip line of trees impacted in construction area. Coordinate with COR. Restore damaged areas to original condition, repairing or replacing damaged trees and plants, at no additional expense to the Government.

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

b. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Contracting Officer Representative and remove agreed-on roots and branches that interfere with construction.

c. Do not fasten ropes, cables, or guys to trees.

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

4. Pest Control: N/A

5. Site Enclosure Fence: Before construction operations begins, furnish, and install orange snow fencing in a manner that will prevent people and animals from easily entering site and or storage areas except by entrance gates.

a. Extent of Fence: As required to enclose portion determined sufficient to accommodate construction operations and storage.

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

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

d. Contractor shall maintain construction fencing on a daily basis.

e. Temporary chain link fencing can be used as a construction fence at the Contractor’s discretion.

f. If chain link fencing is used maintain security by limiting number of keys and restricting distribution to authorized personnel. Provide CO and or COR with one set of keys or utilize double lock with NPS lock.

3.4 Storage - Staging Areas:

A. Confine Storage of materials and equipment to the project staging area noted on the plans/aerial. Specific storage and staging area’s may be discussed at the preconstruction briefing.

B. Do not store materials or equipment within the dripline of trees.

3.5 Preservation of Natural Features:

A. Bat Habitat Limitations:

a. Tree removal is restricted to between October 15 and March 31. Verify dates with

CP/COR.

b. The Park has removed some trees to 3’ high stumps. The Contractor should not have to remove additional trees to execute the project.

c. Incidental take of northern long-eared bat is prohibited if it occurs as a result of removing a known occupied maternity roost tree or removing trees within 150 feet of a known occupied maternity roost tree during the pup season from June 1 through July 31 or as a result of removing trees from within 0.25 mile of a hibernaculum at any time of the year.

d. .If for any reason a bat is killed it MUST be reported to the CO and US Fish & Wildlife.

B. Presence of venomous snakes:

a. There is an expected presence and expected encounter with snakes, which is probable to include Cottonmouth venomous species.

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b. Contractor shall take all necessary precautions and provide PPE to workers to mitigate snake strikes.

c. Encountered wildlife shall not be intentionally harmed that may be within the project limits and within NPS lands.

3.6 Hauling Restrictions: Contractor to verify path to site and meet state and county road requirements and height restrictions for all park work/access.

3.7 Housekeeping:

A. Keep project neat, orderly, and in a safe condition at all times.

1. Dispose of waste materials and recycling legally outside the park. The contractor shall not use park dumpsters

2. Address Recycling: Government goal is to salvage and recycle as much nonhazardous construction waste as possible. Use sustainable methods to extent possible during this project, recycling material as is probable with local means. Maintain accurate documentary records for submittal of all recycled materials used including fly ash and slag cement.

3. Operations. Contractor shall keep the street clean and clear of dirt, dust and construction debris that is a result of project use. As needed keep dust to a minimum;

Contractor shall take precautions and action to keep dust to a minimum per industry standards.

3.9 Photo Documentation:

A. Contractor must provide existing condition, progress, and completion photos. All photos shall be in focus, show maximum range of depth of field general photo and then close up detail photo as needed. Shall be in JPEG digital form and submitted electronically by email or via

CD-R Archival Gold or DVD-R Archival Gold media with printed labels and 8 mega pixels minimum within 7 days from time of taken or as approved by COR.

B. Existing Condition Images:

1. Before starting construction, take color, dated, digital images of project site and adjacent property/roads/etc. that may be impacted by construction activity/traffic. Include existing items to remain or be salvaged from different vantage points and with context for location identification.

C. Construction Progress Images:

1. Document all sub-surface work/ trenches etc. prior to backfill with photos covering enough overall field view to show location and then zoom in for details. (Locations and dimensions shall also be noted on as built drawing set.)

2. Maintain organized index for photos with date, description, etc.

3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

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4.

D. Completion Images:

1. Document all completed work within scope of work.

2. Maintain organized index for photos with date, description, etc..

3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

3.10 Fire and Life Safety:

A. As a minimum, conduct one weekly 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite. Topics need to coincide with work scheduled for the following week. Document and submit meeting minutes to the CO and COR within one day after the meeting and document the meetings on the daily reports.

B. Comply with the requirements of NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations). Take all necessary precautions to prevent fire during construction. Provide adequate ventilation during use of volatile or noxious substances.

C. Store and handle hazardous materials in accordance with manufacturers and OSHA 29CFR1926 Subpart D requirements 1926 | Occupational Safety and Health Administration (osha.gov). Maintain readily available, on site, MSDS/Safety Data Sheets (SDS) for each chemical.

1. Immediately report all spills of hazardous materials to the CO, COR, and park.

2. Maintain a spill emergency response kit.

3. Train employees how to respond to a spill and use the emergency response kit.

3.11 Noise and Acoustics Management

A. Noise Control: Perform all operations to minimize noise. Perform noise-producing work in less sensitive hours of the day or week as directed by the Contracting Officer or COR.

B. Repetitive and/or intermittent, high-level noise: Permitted only during Daytime.

1. Do not exceed the following dB(A) limitations at 50 feet:

Sound Level in dB(A) Time Duration of Impact Noise

70 More than 12 minutes in any hour

80 More than 3 minutes in any hour

2. Maximum permissible construction equipment noise levels at 50 feet:

EARTHMOVING dB(A) MATERIALS HANDLING dB(A)

Compressors 75 Pneumatic Tools 80

Pumps 75 Saws 75

Generators 75 Vibrators 75

C. Ambient Noise:

1. Maximum noise levels (dB) for receiving noise area at property line shall be as follows:

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a. Residential receiving area :

Daytime: 65 dB Nighttime: 45 dB

b. Commercial/Industrial receiving area:

Daytime: 67 dB Nighttime: 65 dB

ITEM 4 - COMMENCEMENT, PROSECUTION, AND COMPLETION

4.1 The Contractor shall commence work in accordance with the terms and conditions of the contract.

Contractor shall coordinate and incorporate long lead and delivery time items within the schedule.

ITEM 5 - EXAMINATION OF THE SITE

5.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids.

Contractors will be accountable for understanding existing conditions. No cost changes for items viewable during site visit will be allowed.

ITEM 6 - ABBREVIATIONS

6.1 The list of abbreviations, standards and organizations which may be used in/referred within the

Construction Specifications or Special Provisions, may be found linked from the listed page below. On the home page, follow the link under “Contracting and Procurement” labeled “NPS

Reference Standards.” https://www.nps.gov/orgs/1671/do-business-with-us.htm

ITEM 7 - ACCIDENT PREVENTION

7.1 Description: The work of this section consists of establishing and implementing an effective accident prevention program (APP) and providing a safe environment for all personnel and visitors.

7.2 Submittals:

A. Accident Prevention (Safety) Plan (APP): Submit a site-specific accident prevention (safety) plan. The Plan shall be written to comply with OSHA and project requirements (a generic plan is not acceptable) including but not limited to the following:

1. Name and qualifications of responsible supervisor to carry out the program.

2. First aid and rescue procedures.

3. Training, both initial and continuing.

4. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to provide for property protection and safety of the public, National

Park Service personnel, and Contractor's employees. Identify the work included under each phase, with a Job Hazard Analysis (JHA)/Job Safety Analysis (JSA), etc. A sample

JHA template may be provided upon request.

5. Planning for possible emergency situations, such as venomous snake bite response, cave-ins, earthquake, explosions, fires, floods, power outages, and windstorms. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

6. Contractor to identify nearest location of medical facility for emergencies

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7. Recognition that works will be performed in remote areas with limited communication or cell phone coverage if applicable.

8. Supplemental hazard specific plans may be required IAW 29 CFR 1926 or 1910.

B. Meeting and Inspection Reports: Safety Meetings: As a minimum, conduct 15 minute

"toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite. Submit a report of safety meetings and inspections to CO and COR within one day after the meeting and document the meetings on the daily reports.

7.3 Qualification of Employees:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner to include operators of vehicles and equipment. Provide operating instructions for all equipment.

B. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

7.4 Accident Reporting: The Contractor shall report all accidents to the CO and COR as soon as safely possible and assist the CO and COR and other officials as required in the investigation of the accident.

7.5 First Aid Facilities: Provide access to facilities for the number of employees and appropriate to the hazards associated with the types of ongoing construction work at the site.

7.6 Emergency Instructions: Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

7.7 Personal Protective Equipment (PPE): It is the Contractor's responsibility to require all those working on or visiting the site to wear necessary protective equipment at all times.

A. PPE must meet requirements of applicable ANSI standards. Selection shall conform to OSHA

29CFR 1926 Subpart E.

B. A hard hat use area shall be designated by the Contractor. The hard hat area shall be posted by the Contractor in a manner satisfactory to the Contracting Officer.

C. Contractor shall provide PPE to workers to mitigate snake strikes.

D. All PPE will be serviceable at all times. At a minimum, maintain one set of PPE including hard hats and all other Accident Prevention Plan required equipment.

7.8 Hazardous Materials: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with

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A. If a spill, leak, or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

ITEM 8 - PRECONSTRUCTION CONFERENCE

8.1 If the Contracting Officer decides to conduct a preconstruction conference, the successful offeror will be notified and will be required to attend. The Contracting Officer’s notification will include specific details regarding the date, time, and location of the conference, any need for attendance by subcontractors, and information regarding the items to be discussed. See Item 9.1C below.

ITEM 9 - SUBMITTALS

9.1 General Contracting Submittal Procedures:

A. General: Prepare and submit submittals required by individual Technical Specification

Sections. Types of submittals are indicated in individual specific sections.

1. CM-16 Transmittal Form: All submittals shall be transmitted via electronic email using

National Park Service form CM-16 form. The form will be provided by the Contracting

Officer. No action will be taken on a submittal item unless accompanied by the CM-16 transmittal form. Submit completed CM-16 forms to the CO and the COR

B. Submittal List: administrative required submittals are listed below in 9.1.C and does not include technical section submittal requirements included in each technical section.

C. Preconstruction Conference Submittal: Satisfactory evidence of liability insurance coverage and workman’s compensation, and any applicable bonds, must be submitted within 10 calendar days of Notice of Award. The following items shall be submitted a minimum of one week prior to the Preconstruction Conference. If all of these documents have not been received one week prior to the scheduled Pre-Construction Conference date, the conference will be cancelled, Notice to Proceed may not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to

Proceed has been issued. Contracting Officer will notify Contractor of tentative date for the

Pre-Construction Conference:

1. Letter designating Project Superintendent.

2. Construction Schedule. (Must include shop drawings, procurement time including long lead time items, mobilization, trade work progression and completion at minimum.)

3. A comprehensive breakdown of the Schedule of Values.

4. Accident Prevention (Safety) Plan (see section 7 of this document).

5. A list of Subcontractors for this project.

6. Written statements from subcontractors certifying compliance with applicable labor standard clauses (SF1413).

7. Quality Control Plan.

8. Waste Management Plan.

9. Water Control Plan

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10. List of Required Construction Permits. Include the following information for each permit:

a. Name of Permit.

b. The Agency(ies) with Jurisdiction issuing the permit.

c. Information required from the Government to complete the permit application.

9.2 Project Shop Drawings, Product Data, and Samples: Contracting Officer will provide sample cover sheet and a list of required submittals is included in each technical specification or attached at the end of this document.

A. Shop Drawings: Indicate all coordinating materials and work impacting the installation coordination, connection details, anchorage requirements, hardware locations, and installation details and locations.

1. Submit Shop Drawings according to Part 9.1 of this section to include one digital file (.PDF or .TIF) and two full size hardcopy documents to COR.

B. Product Data: Provide component construction and specification data sheets, anchorage requirements and any other product specific data.

1. Submit Product Data according to Part 9.1 of this section to include one digital file (.PDF or .TIF) to COR.

C. Samples: Provide photographic representation from source of procurement for new stone material proposed to be used to supplement re-use of existing stone.

1. Submit Samples according to Part 9.1 of this section to include one digital file (.PDF or

.TIF) to COR.

D. For submittals specified above, forward submittals to Contracting Officer and COR at least 15 days before need for approval (depends on length of project).

E. After approving submittals, Contracting Officer and/or COR will return one copy to the

Contractor. If submittals are not approved, Contracting Officer will return all copies to

Contractor with reasons for rejection. Resubmit, identifying changes. Any work done before approval shall be at Contractor's own risk.

9.3 Approved Equals: If an item in this solicitation is identified as “brand name or equal” or lists more than 1 manufacturer, the description of the proposed item must reflect the characteristics and level of quality that will satisfy the Government’s needs as demonstrated by the salient physical, functional, or performance characteristics that “equal” products must meet and/or exceed that as specified in the solicitation or relevant specification.

A. For each item proposed as an “approved equal,” submit supporting data, including:

1. Drawings and samples as appropriate.

2. Comparison of the characteristics of the proposed item with that specified and with the salient characteristics provided.

3. Changes required in other elements of the work because of the substitution.

4. Name, address, and telephone number of vendor.

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5. Manufacturer’s literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists.

Describe availability of maintenance service, and state source of replacement materials.

B. A request for approval constitutes a representation that Contractor:

1. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

2. Will provide the same warranties for the proposed item as for the item specified.

3. Has determined that the proposed item is compatible with interfacing items.

4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

5. Waives all claims for additional expenses that may be incurred as a result of the substitution.

C. Approved Equals will be evaluated and approved/disapproved during the submittal process.

9.4 Schedule of Values: Submit the Schedule of Values a minimum of one week prior to the

Preconstruction Conference for COR review. Schedule of Values shall include defined work line items with cost break downs including labor, material, and equipment for COR approval.

9.5 Progress Reporting: The initial Construction Schedule and Schedule of Values are required a minimum of one week prior to the Preconstruction Conference. After the Notice to Proceed is issued and after on-site work begins, progress will be documented via daily logs and by providing an updated Construction Schedule and Schedule of Values when requested, but minimally with each pay application. Submit digital copy electronically (PDF preferred) of all required documents.

Construction Schedules are normally in bar chart form and indicate estimated starting and completion dates for each part of the work. For a pay application to be reviewed and processed in a timely manner, the following information must either be submitted prior to or accompany submission of the pay application:

A. Daily/weekly progress reports during construction as part of the administration process.

B. Updated Schedule of Values: Breakdown each lump-sum item into component work activities used in the schedule, for which progress payments may be requested. The Schedule of

Values will form the basis for payment. The work activities broken out within the schedule of values shall be integrated into and made a logical part of the construction baseline schedule submitted under this specification. The total costs for the component work activities shall equal the contract price for that lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values. A sample Schedule of Values format may be provided upon request.

ITEM 10 – TEMPORARY SERVICES

10.1 It is the Contractor’s responsibility to provide temporary services, equipment, tools, and skilled labor as required for the chosen means and methods to perform the work in accomplishing this

Contract.

ITEM 11 - PROJECT CLOSEOUT

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11.1 Description: The work of this section consists of final cleanup, closeout submittals, final inspection procedures working toward Final Acceptance.

11.2 Cleaning: Remove all tools, equipment, surplus materials, and rubbish. At time of final inspection, project shall be thoroughly clean and ready for intended use. Inspector holds the right to reschedule if project is not ready for inspection.

11.3 Completion and Final Inspection: Contractor shall submit written certification of project completion and request a final inspection to the Contracting Officer and COR. The Contracting

Officer or designee will make an inspection within 10 days of receipt of request or at a mutually agreeable time.

A. If the work is determined to be complete following the final inspection with minor comments, the COR will prepare and provide the Contractor a Punch List noting outstanding items to be addressed.

B. If the work is not determined to be complete following the final inspection, the Contracting

Officer will notify Contractor in writing, stating reasons. Contractor, after completing the work according to the Contract Documents, shall resubmit completion and request a new final inspection. Re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction contract clause.

C. Contractor shall complete the Punch List within 30 calendar days, or a time directed by the

CO.

D. Once Contractor completes all items of work on the Punch List and all contractually required items are accepted, Contracting Officer will issue Letter of Final Acceptance of Work and request the final pay application.

E. If the Contractor fails to complete the work within the time frame, the Contracting Officer may correct the work with an appropriate reduction in contract price or charge for re-inspection costs in accordance with the Inspection of Construction contract clause.

F. Disposition of any permits and warranties required by the specifications in this section.

11.4 Final Acceptance of the Work: After all punch list deficiencies have been corrected, a Letter of

Final Acceptance will be issued. A Release of Claims document must be executed and submitted to the Contracting Officer before final payment can occur.

11.5 Warranties

A. Construction Warranty shall be based on date of final acceptance of the work and remain in effect for one year.

B. Provide all manufacturer warranty information of products installed organized by Division. All contact information, extent of coverage and conditions shall be clearly noted as well as date of overall final acceptance.

C. Information shall include operation and maintenance manuals for each warranted product.

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PART 2 – PRODUCTS (NOT USED)

PART 3 – EXCUTION (NOT USED)

END OF SECTION

THIS PAGE INTENTIONALLY LEFT BLANK.

HOSP-218268 31 10 00 - 1

SECTION 31 10 00 - SITE CLEARING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Protecting existing vegetation to remain.

2. Removing existing vegetation.

3. Clearing and grubbing.

4. Stripping and stockpiling topsoil.

5. Stripping and stockpiling rock.

6. Temporary erosion and sedimentation control.

B. Related Requirements:

1. Section 01 50 00 "Temporary Facilities and Controls" for temporary erosion- and sedimentation-control measures.

1.3 DEFINITIONS

A. Subsoil: Soil beneath the level of subgrade; soil beneath the topsoil layers of a naturally occurring soil profile, typified by less than 1 percent organic matter and few soil organisms.

B. Surface Soil: Soil that is present at the top layer of the existing soil profile. In undisturbed areas, surface soil is typically called "topsoil," but in disturbed areas such as urban environments, the surface soil can be subsoil.

C. Topsoil: Top layer of the soil profile consisting of existing native surface topsoil or existing in-place surface soil; the zone where plant roots grow.

D. Topsoil: Top layer of the soil profile consisting of existing native surface topsoil or existing in-place surface soil; the zone where plant roots grow. Its appearance is generally friable, pervious, and black or a darker shade of brown, gray, or red than underlying subsoil; reasonably free of subsoil, clay lumps, gravel, and other objects larger than 2 inches in diameter; and free of weeds, roots, toxic materials, or other nonsoil materials.

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E. Plant-Protection Zone: Area surrounding individual trees, groups of trees, shrubs, or other vegetation to be protected during construction and indicated on Drawings.

F. Tree-Protection Zone: Area surrounding individual trees or groups of trees to be protected during construction and indicated on Drawings.

G. Vegetation: Trees, shrubs, groundcovers, grass, and other plants.

1.4 MATERIAL OWNERSHIP

A. Except for materials indicated to be stockpiled or otherwise remain Owner's property, cleared materials shall become Contractor's property and shall be removed from Project site.

1.5 FIELD CONDITIONS

A. Traffic: Minimize interference with adjoining railroads, roads, streets, walks, and other adjacent occupied or used facilities during site-clearing operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction.

2. Provide alternate routes around closed or obstructed trafficways if required by Owner or authorities having jurisdiction.

B. Salvageable Improvements: Carefully remove items indicated to be salvaged and store on Owner's premises where indicated.

C. Utility Locator Service: Notify One Call for area where Project is located before site clearing.

D. Do not commence site clearing operations until temporary erosion- and sedimentation-control and plant-protection measures are in place.

E. Soil Stripping, Handling, and Stockpiling: Perform only when the soil is dry or slightly moist.

PART 2 - PRODUCTS – NOT USED.

PART 3 - EXECUTION

3.1 PREPARATION

A. Protect and maintain benchmarks and survey control points from disturbance during construction.

B. Verify that trees, shrubs, and other vegetation to remain or to be relocated have been flagged and that protection zones have been identified and enclosed.

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C. Protect existing site improvements to remain from damage during construction.

1. Restore damaged improvements to their original condition, as acceptable to Owner.

3.2 TEMPORARY EROSION AND SEDIMENTATION CONTROL

A. Provide temporary erosion- and sedimentation-control measures to prevent soil erosion and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways, according to erosion- and sedimentation-control Drawings and requirements of authorities having jurisdiction.

B. Verify that flows of water redirected from construction areas or generated by construction activity do not enter or cross protection zones.

C. Inspect, maintain, and repair erosion- and sedimentation-control measures during construction until permanent vegetation has been established.

D. Remove erosion and sedimentation controls, and restore and stabilize areas disturbed during removal.

3.3 TREE AND PLANT PROTECTION

A. Protect trees and plants remaining on-site.

3.4 EXISTING UTILITIES

A. Interrupting Existing Utilities: Do not interrupt utilities serving facilities occupied by Owner or others, unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Do not proceed with utility interruptions without Owner's written permission.

3.5 CLEARING AND GRUBBING

A. Remove obstructions, trees, shrubs, and other vegetation to permit installation of new construction.

1. Do not remove trees, shrubs, and other vegetation indicated to remain or to be relocated.

2. Grind down stumps and remove roots larger than 2 inches in diameter, obstructions, and debris to a depth of 18 inches below exposed subgrade.

3. Use only hand methods or air spade for grubbing within protection zones.

B. Fill depressions caused by clearing and grubbing operations with satisfactory soil material unless further excavation or earthwork is indicated.

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1. Place fill material in horizontal layers not exceeding a loose depth of 8 inches, and compact each layer to a density equal to adjacent original ground.

3.6 TOPSOIL STRIPPING

A. Remove sod and grass before stripping topsoil.

B. Strip topsoil to depth of 6 inches in a manner to prevent intermingling with underlying subsoil or other waste materials.

1. Remove subsoil and nonsoil materials from topsoil, including clay lumps, gravel, and other objects larger than 2 inches in diameter; trash, debris, weeds, roots, and other waste materials.

C. Stockpile topsoil away from edge of excavations without intermixing with subsoil or other materials. Grade and shape stockpiles to drain surface water. Cover to prevent windblown dust and erosion by water.

1. Do not stockpile topsoil within protection zones.

2. Stockpile surplus topsoil to allow for respreading deeper topsoil.

3.7 STOCKPILING BOULDERS

A. Remove existing stacked boulders from area indicated on Drawings.

1. Separate or wash off non-rock materials from rocks, including grout, soil, clay lumps, gravel, and other objects larger than 2 inches in diameter; trash, debris, weeds, roots, and other waste materials.

a. Contractor shall place a filter sock downstream of cleaning/washing area to capture and prevent debris from entering creek.

b. Contractor shall capture, collect, and dispose of debris from wash off.

B. Stockpile rock where indicated on Drawings without intermixing with other materials.

Cover to prevent windblown debris from accumulating among rocks.

1. Do not stockpile rocks within protection zones.

2. Rocks shall be stockpiled on ground protection mats.

3. Rocks shall not be stacked on top of one another during stockpiling.

3.8 DISPOSAL OF SURPLUS AND WASTE MATERIALS

A. Remove surplus soil material, unsuitable topsoil, obstructions, demolished materials, and waste materials including trash and debris, and legally dispose of them off Owner's property.

END OF SECTION 31 10 00

HOSP-218268 31 37 19 - 1

SECTION 31 37 19 - STACKED GROUTED BOULDER RETAINING WALLS

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Dewatering

2. Subgrade preparation.

3. Installing stacked grouted boulders.

B. References

1. The following is a list of standards which may be reference in this section

a. ASTM International (ASTM):

1) C33, Standard Specification for Concrete Aggregates.

2) C94/C94M, Standard Specification for Ready-Mixed Concrete.

3) C150, Standard Specification for Portland cement.

4) C260, Standard Specification for Air-entraining Admixtures for

Concrete.

5) C494/C494M, Standard Specification for Chemical Admixtures for

Concrete.

b. American Concrete Institute (ACI):

1) 211, Standard Practice for Selecting Proportions for Concrete.

2) 301, Specifications for Structural Concrete.

3) 304, Guide for Measuring, Mixing, Transporting and Placing

Concrete.

4) 305.1, Specification for Hot Weather Concreting.

5) 306.1, Specification for Cold Weather Concreting.

6) 309, Standard Practice for Consolidating Concrete.

1.3 DEFINITIONS

A. The terms “boulders” and “rock” may be used interchangeably in this section.

1.4 SUBMITTALS

A. Provide product data on the following:

1. Boulders

2. Grout

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3. Fly ash

4. Admixtures (air entrainment and water reducing admixtures)

5. Bonding agent

6. Curing compound

7. Quarry/provider of stone materials and photos of boulders in stock.

B. Provide product samples on the following:

1. Boulders

a. Large stone sample: 2’ minimum diameter.

b. Small stone sample: 8”-12” diameter.

C. Provide shop drawings on the following:

1. Water Control Plan

1.5 QUALITY ASSURANCE

A. Qualifications: The ready-mixed concrete supplier shall have the capability to produce and deliver grout, meeting the requirements of this specification.

1. Truck mixed grout shall not be permitted.

1.6 DELIVERY, STORAGE, AND HANDLING

1. The ready-mixed concrete truck driver shall provide the batch ticket to the contractor’s site superintendent at the time of concrete delivery. The ticket shall summarize the following information legibly in an easily discernible table:

a. Weight in pounds of all materials, excepting the water reducing and air-entraining agents which shall be in ounces.

b. Cubic yards batched.

c. The ratio of water to cementitious (W/C) materials ratio.

d. Temperature of the concrete at the time it was batched.

e. Time of batching.

f. Free moisture in the fine and coarse aggregates in percent of weight of aggregate.

g. Gallons of water that may be added at the site without exceeding the permissible W/C ratio.

h. Mix design number.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Boulders

1. Material

a. Locally sourced boulders, matching geological type, coloration, and general shape of existing boulders, to replicate the historical stone aesthetic from the original CCC era construction.

2. Size

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a. As needed to match appearance and gradation of existing stacked boulder walls by providing range of size equivalent to exiting proportion of largest to smallest size of existing stone context.

B. Grout

1. Concrete for the grout shall be an approved batch meeting the following requirements:

a. All grout shall have a minimum 28-day compressive strength equal to 3,200 psi.

b. One cubic yard of grout shall contain a minimum of six (6) sacks of Type II

Portland cement.

c. A maximum of 25% Type F Fly Ash may be substituted for the Portland cement.

d. Aggregate for the grout shall consist of 70% natural sand (fines) and 30%

3/8-inch rock (coarse).

e. Slump shall be four (4) inches to six (6) inches.

f. Air entrainment shall be 5.5% - 7.5%.

g. Grout shall contain one and one-half (1-1/2) pounds of Fibermesh, or approved equivalent, per cubic yard of grout.

h. Temperature immediately before placement shall not be less than 50-degrees Fahrenheit or more than 90-degrees Fahrenheit.

2. Bonding adhesive: Concresive Liquid LPL or approved equivalent.

3. Water: Only clean potable water shall be used.

4. Curing compound: Masterkure 200WB or approved equivalent.

5. Evaporation reducer: Confilm Evaporation Reducer or approved equivalent.

2.2 SOURCE QUALITY CONTROL

A. Batching

1. Measuring and batching of materials shall be done at a qualified batching plant.

B. Mixing

1. Ready-mixed concrete shall be either “central mixed” or “shrink mixed” concrete as defined in ASTM C94/C94M. “Truck mixed” concrete as defined in ASTM C94/C94M shall not be permitted. Mixing time shall be measured from the time water is added to the mix, or cement contacts the aggregate. All concrete shall be homogeneous and thoroughly mixed, and there shall be no lumps or evidence of undispersed cement. Mixers and agitators, which have an accumulation of hard concrete or mortar, shall not be used. Ready-mixed concrete shall be mixed and transported in accordance with ASTM C94/C94M.

2. The temperature of mixed concrete, immediately before placing shall not be less than fifty degrees Fahrenheit (50°F) or more than ninety degrees Fahrenheit

(90°F). Aggregates and water shall be heated or cooled as necessary to produce concrete within these temperature limits. Neither aggregates nor mixing water shall be heated to exceed one hundred fifty degrees Fahrenheit (150°F).

3. The time elapsing from the time water is added to the mix (or the cement comes in contact with aggregate) until the concrete is deposited in place at the site of the work shall not exceed sixty (60) minutes when the concrete is hauled in non-agitating trucks, nor more than ninety (90) minutes when hauled in truck mixers or truck agitators.

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4. The batch shall be so charged into the drum that a portion of the mixing water shall enter in advance of the cement and aggregates. The flow of water shall be uniform and all water shall be in the drum by the end of the first one-quarter (1/4) of the specified mixing time.

5. Cement shall be charged into the mixer by means that will not result in loss of cement because of the effect of wind, or in accumulation of cement on surfaces of hoppers or in other conditions which reduce or vary the required quantity of cement in the concrete mixture.

C. Transporting Mixed Concrete

1. Transporting of mixed concrete shall conform to ASTM C94/C94M.

2. Truck agitators shall be loaded not to exceed the manufacturer’s guaranteed capacity. They shall maintain the mixed concrete in a thoroughly mixed and uniform mass during hauling.

3. No additional mixing water shall be incorporated into the concrete during hauling or after arrival at the delivery point, unless approved by the contracting officer. If additional water is to be incorporated into the concrete at the site, the drum shall be revolved not less than thirty (30) revolutions at mixing speed after the water is added and before discharge is commenced. One (1) addition of water at the site to adjust mix workability is permitted but the maximum water cement ratio shall not be exceeded.

4. Contractor shall furnish a water-measuring device in good working condition, mounted on each transit mix truck, for measuring the water added to the mix on the site. All water tanks on transit mix trucks shall be filled prior to being batched and arrive at the construction site one hundred percent (100%) full.

5. Each load of ready mixed concrete delivered at the job shall be accompanied by the ticket in accordance with Article Delivery, Storage, and Handling.

PART 3 - EXECUTION

3.1 DEWATERING

A. Contractor shall submit to the contracting officer a Water Control Plan two weeks prior to execution of the project. At a minimum, the Water Control Plan shall include:

1. Descriptions of proposed groundwater and surface water control facilities including, but not limited to, equipment, methods, standby equipment and power supply, means of measuring inflow to excavations, pollution control facilities, discharge locations to be utilized, and provisions for…