01_1100_-_Summary_of_Work_0009.pdf

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031414 SUMMARY OF WORK

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Work covered by the Contract Documents.

2. Work phases.

3. Work under other contracts.

4. Contractor Use of the Site.

5. Owner furnished/ contractor installed (OFCI) products

6. Access and Security.

7. COVID19 Requirements.

8. Public use of site.

9. Occupancy requirements for existing buildings.

10. Conduct of operations

11. Work Restrictions.

12. Load Capacity

13. Vibration Restrictions.

14. Noise Critical Spaces.

15. Soils or Spills on site.

16. Special Construction Requirements.

17. Soils Investigation Report.

18. Hazardous Materials Report.

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location:

National Mall and Memorial Parks (NAMA) Lincoln Memorial 2 Lincoln Circle, NW Washington, DC 20002

B. The Work consists of the following:

1. The Work includes complete removal of the existing Visitor’s Center and Retail Shop. The southeast elevator will be fully replaced, and a new elevator will be located in the former retail shop area in the northeast corner of the building. A new Interpretive Center will be constructed in the foundation space, referred to as the “Undercroft”, below the Memorial.

On the Chamber Level, the eastern corners will be renovated to provide access to the elevators, while the western rooms will be renovated to provide improvements to the existing restrooms and existing United States Park Police (USPP) security systems.

Exterior work includes widening of both the southeast and northeast entrances to the mezzanine undercroft, the enlargement of the existing vent on the north side into a new exit, partial replacement of the Raised Terrace slab, sod and waterproofing and installation

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of waterproofing under the upper landing and run of the existing granite and marble grand Main Stairs that lead up to the Statuary Chamber.

2. The work must also comply with the Secretary of the Interior’s Standards for Rehabilitation.

3. Definition of spaces/terms used in this project.

a. Statuary Chamber: The area within the Memorial which holds the Abraham

Lincoln statue.

b. Raised Terrace: The raised grassy area approximately 14 feet above grade that surrounds the marble Memorial. It is supported by a perimeter granite wall on its outer edge and bordered by the Stylobate on the inner edge.

c. Undercroft: The foundation space below the Memorial. The Undercroft is comprised of four distinct areas, the Raised Terrace Undercroft, the Statuary Chamber Undercroft, the Stairway Undercroft, and the Approachway Undercroft.

1) Raised Terrace Undercroft: The foundation area directly below the raised grass terrace that surrounds the marble Memorial. A perimeter granite wall defines its outer edge. The inner edge is defined by the poured concrete wall that supports the outer edge of the Memorial.

2) Statuary Chamber Undercroft: The foundation area directly below the Statuary Chamber.

3) Stairway Undercroft: The area directly below the main marble and granite stair that leads up to the Statuary Chamber.

4) Approachway Undercroft: The area directly below the plaza leading from the Reflecting Pool to the Main Stair. This area is Not in Contract.

d. Stylobate- The three large marble “steps” that form the base of the marble Memorial and transition down to the Raised Terrace.

C. Project will be constructed under a single prime contract.

1.3 WORK PHASES

A. The Work shall be conducted in one (1) phase with the following items on the critical path:

1. Temporary relocation of security system hub (ED310) including but not limited to exterior lighting, operable site bollards, and cameras. This work must be coordinated with the USPP and the Owner.

2. Construction of the USPP Security Room 019 on the Utility Level. The existing USPP office 203 on the Chamber Level will be required to remain occupied and operational until USPP Booth 144 is constructed. This work must be coordinated with the USPP and the Owner.

3. Sequencing of new Telecom Work. The existing Demarcation Point serves the Memorial and multiple structures at the eastern end of the National Mall. Contractor to coordinate new work with the local utility and the Owner.

4. To ensure the continuity of operations, visitor protection, and ABAAS-compliant access to the Statuary Chamber throughout the period of performance, elements of the overall work must be executed in the following sequence:

a. Removal of marble steps at the north side of the monumental stair between Col.

Lines 97-12 (Dwg. Shts. AD3, AD18-19, AD80).

b. Installation of the new roofing membrane at the north side of the monumental stair between Col. Lines 9-12 (Dwg. Shts. A65, A88-89).

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c. Reinstallation of the marble steps at the north side of the monumental stair between Col. Lines 97-12 (Dwg. Shts. A18-19).

d. Installation of protection measures and construction of the temporary walkways and lifts located at the north side of the monumental stair adjacent to Col. Line 12 (Dwg.

Shts. G12-G16).

e. Closure of the existing Visitors’ Center, which includes:

1) Removal of the existing elevator and machinery between Col. Lines 5-6

(Dwg. Shts. AD10, AD14, AD18).

2) Upon completion of the Temporary Support Facilities (provided under a separate contract), closure of the existing public toilets in the vicinity of Col.

Lines 2-5 (Dwg. Shts. AD10, AD14).

3) Upon completion of the Temporary Support Facilities (provided under a separate contract), closure of the existing retail store in the vicinity of Col.

Lines 12-14 (Dwg. Sht. AD19).

1.4 WORK UNDER OTHER CONTRACTS

A. General: Cooperate fully with separate contractors so work on those contracts may be carried out smoothly, without interfering with or delaying work under this Contract. Coordinate the Work of this Contract with work performed under separate contracts.

B. Concurrent Work: Government will award separate contract(s) for the following construction operations at Project site. Those operations will be conducted simultaneously with work under this Contract.

1. Temporary Support Facilities (Restrooms and Retail Shop): A separate contract will be awarded for constructing temporary restrooms and a retail shop. Work is required to be coordinated with this contract so that demolition of the existing restrooms and retail shop does not occur until after completion of the Temporary Restrooms and Retail Shop. This Work is expected to be completed prior to the contractor taking possession.

2. Exterior Security Camera Upgrades: As separate contract will be awarded for upgrading security cameras near the Reflecting Pool. Work is required to be coordinated with the security upgrades being completed under this contract.

3. Installation / Maintenance of Security Equipment: Installation and maintenance of security equipment is completed under a separate contract.

1.5 CONTRACTOR USE OF SITE

A. General: Contractor shall have full use of the site outlined for construction operations during the construction period (see construction drawings). Limit use of premises to areas with the Contract limits indicated. Do not disturb portions of the Project site beyond areas in which the Work is indicated.

1. Limits: Confine construction operations to areas indicated on the staging drawings.

B. Storage of Materials: Confine storage of materials to areas indicated on the staging drawings.

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1. The existing Martin Luther King Jr. commemorative plaque located on the landing of the main stair will be removed and re-installed during construction to accomplish waterproofing of the main stair. The plaque is to be stored by the Owner until reinstallation.

2. The existing stone pavers that are to be removed and re-installed at the south-east and north-east entrances plazas shall be stored in the “Secured Construction Yard” as indicated on the staging drawings.

3. The existing stone treads and landing panels that are to be removed and re-installed at the on the main entrance stair shall be stored in the “Secured Construction Yard” as indicated on the staging drawings.

C. Preservation of Natural Features:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

2. Provide temporary barriers to protect existing trees and plants and root zones. Periodic inspection of barriers will be conducted by the Construction Management Representative.

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

4. Do not fasten ropes, cables, or guys to existing trees.

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

6. Prevent damage to adjacent historic features and buildings, specifically exterior historic stone, and other stone material within the Memorial. Protect adjacent features as indicated in the drawings during construction and repair operations and restore any damaged areas at no additional expense to the Government.

7. Utilize protective measures, rubber matting, plating, plywood, etc., to prevent equipment or materials from damaging the Memorial.

8. Prevent damage to adjacent site features, including security walls, concrete walkways, signage, waysides, benches, and other site features that are not removed during construction operations. Restore damaged features, repairing or replacing them to existing conditions at no additional expense to the Government.

9. Contractor to maintain lawn/sodded area within staging and fenced areas, and locations where temporary facilities are located. Maintenance includes, but is not limited to, mowing, weeding, trash removal for pest control and general site “tidiness”, etc.

Contractor to coordinate with the CO to determine the schedule for regular maintenance.

10. The Contractor shall restore any turf that is disturbed during construction in accordance with NAMA’s turf specifications.

D. Preservation of Cultural Features

1. The Lincoln Memorial and surrounding site is an United States National Memorial and is a cultural icon to the American people. All work to be performed with the utmost care and respect for the existing structure and site, including but not limited to temporary protection of historic architectural features. All work to follow the Secretary of the Interior’s Standards for the Treatment of Historic Properties (https://www.nps.gov/tps/standards.htm).

2. Prevent damage to the existing historic structure. Restore damaged areas, repairing or replacing building elements, as coordinated with the CO and at no additional expense to the Government.

3. Protect site features, including but not limited to the following:

a. Granite Curbs

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b. Marble walls and columns

c. Granite Terrace Wall

d. Exposed aggregate paving

e. Bronze handrails

f. Bollards

g. Trees, Hedges, Vegetation

h. Historic Bronze Doors and transoms

i. Existing Stone (marble) floors

j. Marble stairs

k. Carved Stone :Tripods” on either side of the main Marble Stairs.

4. Do not remove or damage any building element not identified in the Contract Documents without prior approval from the Contracting Officer.

5. Do not fasten ropes, cables or guys to the existing structure.

6. Carefully supervise all work to minimize damage to existing structure.

7. Contractor to provide temporary protection to protect existing historic structure, building elements, etc. Contractor

E. Driveways and Entrances: Keep roads, sidewalks 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.

1. Schedule deliveries to minimize use of driveways and entrances.

2. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

3. Schedule deliveries in accordance with USPP security requirements, Project Security Plan.

F. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

1.6 OWNER FURNISHED/ CONTRACTOR INSTALLED (OFCI) PRODUCTS

A. Owner’s Responsibilities: Owner will furnish products indicated and perform the following, as applicable:

1. Provide the Contractor Owner-reviewed Product Data, Shop Drawing, and Samples

2. Provide for delivery of Owner-furnished projects to Project site.

3. Upon delivery, inspection with Contractor present, delivered items

a. If Owner-furnished products are damaged, defective, or missing, arrange for replacement

4. Obtain manufacturer’s inspections, service, and warranties

5. Inform Contractor of earliest available delivery date for Owner-furnished products

B. Contractor’s Responsibilities: The Work includes the following as applicable:

1. Designate delivery dates of Owner-furnished products in Contractor’s construction schedule, utilizing Owner-furnished earliest available delivery dates

2. Review Owner-reviewed Product Data, Shop Drawings, and Samples, noting discrepancies and other issues in providing for Owner-furnished products in the Work.

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3. Receive, unload, handle, store, protect, and install Owner-furnished products.

4. Make building services connections for Owner-furnished products

5. Protect Owner-furnished products from damage during storage, handling, and installation and prior to Substantial Completion.

6. Repair or replace Owner-furnished products damaged following receipt

C. Owner-furnished/ Contractor-Installed (OFCI) Products:

1. Magnetometers (Two)

2. X-Ray Machine

3. Ion Scanners (Two)

1.7 ACCESS AND SECURITY

A. Summary

1. The section includes administrative and procedural requirements for instructing the contractor including the following:

a. Contractor personnel background checks and badging.

b. Material and equipment screening.

c. Contractor access to project site and staging area.

d. Screening procedures for personnel and vehicles.

e. Prohibited items to project site.

2. The purpose of this section is that while the Lincoln Memorial and associated grounds experience a significant change in their day-to-day use and operations, additional security measures may be required throughout the project.

3. The goal is to ensure the safety and security of visitors, park staff, park resources, contractors, law enforcement and security resources throughout the duration of the project without producing any unnecessary burdens on the construction team or security personnel.

B. Security Overview

1. 1. All USPP officers, contract security guards, and K-9 units come at a cost to the government. Any additional days awarded to the contractor; has a direct impact on security requirements and needs.

a. The site will always have a minimum of number USPP officers within the construction area during construction hours.

b. There will be a minimum number of contract security guards providing access control at the pedestrian gate during construction hours.

c. There will be USPP K-9 Unit stations at the main site access point within the

Secure Construction Yard. The Secure Construction Yard is for construction deliveries only. No contractor vehicles are allowed past the Secure Construction Yard’s vehicle barrier. Smaller materials and tools will be required to be hand carried to the project site. Contractor vehicles are to be parked in the Field Office Construction Yard as identified on the drawings. Overflow parking will not be provided by the Owner and is the Contractor’s responsibility.

C. Contractor Personnel Background Checks and Badging Security Review

1. Security Background Check Review

a. All employees of the Contractor including subcontractors, vendors and testing agencies shall be required to undergo security review prior to accessing the project site. Requirements shall also apply to the Government’s A/E design and Construction Management teams as well as testing agencies. Contractor shall

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conduct their own criminal background check of all employees prior to employment on the Project Site. In addition, each employee shall fill out questionnaires and other forms required for criminal history checks by the United States Park Police (USPP). Contact the USPP at (202) 610-7500.

b. Contractor shall submit badging applications in Division 1 submittals.

Applications shall be received a minimum of number weeks in advance of mobilizing on site. Subsequent (maximum 5 applications at a time) shall be received a minimum of 10 days in advance for any new personnel requiring access to site (no exceptions). The contractor is to pay a $5 fee per application submitted to the USPP.

2. Lincoln Memorial Identification Badge

a. Once an applicant’s security review has been approved, Contractor shall coordinate with USPP to schedule an appointment to obtain identification badge at the USPP office located at Central District Station, 1200 Ohio Drive, SW, Washington DC 20024. Appointments shall be coordinated through the USPP Icon Protection Unit point of contact(s) for the project, Sgt. Phelan and Ofc. Faust.

Most badges will be distributed at weekly construction meetings.

b. Personnel will be required to visibly always display their identification badge while on the project site.

D. Personnel, Material, and Equipment Screening and Access

1. Access to Project Site

a. Access to Project Site will be via the “construction, storage and delivery entrance” located on the west side of the site. Personnel must present their Lincoln Memorial identification badge and are subject to screening of materials, bags, tools, personal items, etc. by USPP

2. Deliveries

a. General Procedures

1) Deliveries will be at the main project gate.

2) Trucks and materials will be inspected by a USPP (including K9 inspection) located at the gate.

3) Contractor shall provide a list of all drivers and passengers including subcontractors and suppliers a minimum of 24 hours prior to a delivery.

Drivers shall present a government issued ID such as a driver’s license.

4) Contractor shall keep project team up to date on upcoming deliveries on the three week look ahead construction schedule. USPP canine security is required to be onsite for the screening of construction materials and requires a 14 business days’ notice for any schedule changes. (Schedule to be confirmed after award based on Contractor schedule input and as per 3-week look ahead schedule updates).

b. Screening Procedures

1) Access for vehicles will only be available from 6:00 AM to 10:00 AM, Monday through Friday. USPP will consider requests for screening after 10:00 AM on a case-by-case basis when advanced notice is provided.

2) All personnel shall power off and exit the vehicle/ piece of equipment and be subject to the procedures listed below in “Personnel Screening.”

3) The K-9 officer will conduct a sweep of the vehicle for explosives using his/her bomb detection K-9 and visual observation.

4) The K-9 officer will then conduct a visual and physical inspection of the interior of the vehicle and any accessible compartments (trunks, cargo boxes, storage areas, etc.) for any prohibited items.

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5) At this point the vehicle is allowed entry into the site.

6) The K-9 officer shall operate the drop gate to allow vehicular access.

3. Daily Contractors

a. Screening Procedures

1) Access for personnel on foot will only be available during regularly scheduled work hours, tentatively from 6:00 AM to 4:00 PM. No bags, toolboxes, equipment, etc. may be brought into the site after 10:00 AM or anytime when the K-9 unit is not on site for screening. USPP will consider requests for screening after 10:00 AM on a case-by-case basis when advanced notice is provided.

2) Contract guards are on post at the security booth located at the entrance to the construction area no later than 6:00 AM hours, ready to begin screening.

3) Guard is responsible for unlocking the gate into the construction area at 6:00 AM utilizing the construction beat keys.

4) Contractors will place any hand carried, or hand trucked, tools and lined up on the sidewalk outside the secure area to be swept by the K-9 officer.

5) Contractors will then present their USPP provided ID badges to the contract security guards to be checked against the access roster.

6) After an ID check is conducted, the guard will conduct a screening of the contractor for prohibited items using a handheld metal detector and visual observation. Pat downs of specific areas may be conducted as needed if a metallic object is detected but cannot be visually identified or removed.

7) While the individual is being checked in and screened, the K-9 officer should conduct a sweep for explosives of the tools/equipment that has been laid out.

8) After the K-9 sweep is conducted, a contract guard will conduct a visual and physical inspection of the tools/equipment for prohibited items. If a prohibited but legal item is found, the contractor will have the opportunity to leave that item in the construction trailer area or his/her vehicle. If illegal contraband or a weapon is discovered, the USPP Officer (141C or K-9 141) shall take appropriate law enforcement action.

9) If the search reveals no illegal or prohibited items, or when the prohibited items are removed, the contractor and his/her equipment shall be allowed entry into the site.

4. Short-term Visitors

a. Screening Procedures

1) Occasionally there will be a need for visitor access of non-credentialed personnel to the secure area. To facilitate access, the Construction Manager should notify USPP Icon Protection Unit 24 hours in advance of the visit. The visitor will be subject to a full screening by security guards and USPP personnel. The visitor will also need to be escorted by the Construction Manager at all times within the secure area.

5. Contractor furnished elements

a. USPP Trailer for screening operations and sign-in with temporary electric power.

Trailer must have two doors to facilitate entry through a non-secured door, screening within the trailer and then exiting into the secured portion of the site.

b. USPP Tent or Overhead protection for screening and sign-in.

c. K9 unit tent.

6. Prohibited Items

a. Contractor staff is not allowed to bring any of the following items onto the grounds and designated construction site:

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1) Firearms or similar devices that expels a projectile through the action of an explosive

2) BB or pellet guns

3) Antique firearms

4) Flare guns

5) Realistic replica or toy firearms

6) Spear guns

7) Starter pistols

8) Stun guns, cattle prods, dart-firing stun guns, and other electronic weapons or controlled devices

9) Ammunition, shotgun shells or firearm cartridges, black powder, smokeless propellant powder

10) Slingshots

11) Axes and hatchets

12) Bows and arrows

13) Ice axes/ice picks

14) Throwing stars (martial arts)

15) Knives with a blade longer than 4 inches, including sabers, swords, daggers, and other bladed devices with a blade of more than 4 inches

16) Billy clubs

17) Blackjacks

18) Brass knuckles

19) Night sticks

20) Martial arts weapons, including nunchucks and kubatons

21) Blasting caps or detonators

22) Dynamite, nitroglycerin, trinitrololuene, ammonium nitrate, and other explosives

23) Fireworks

24) Gunpowder

25) Hand grenades, mine, bomb, rocket, missile, pipe bomb, plastic explosives

26) Realistic replicas of explosives or similar devices

27) Mace, pepper spray, tear gas, tear gas gun, or other chemical spray designed for self defense

28) Poisonous gases

29) Alcohol

30) Narcotics, including marijuana

31) Any other objects deemed dangerous by USPP that have no legitimate need for construction purpose

1.8 COVID19 REQUIREMENTS

A. Contractors are solely responsible for complying with all applicable COVID-19 protocols while at any NPS facility or work site. Each contractor is responsible for ensuring compliance by all its subcontractors and suppliers while on the work site or other NPS facility. Failure to comply with applicable COVID-19 protocols will result in immediate removal of the noncompliant worker(s) from the work site.

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1.9 PUBLIC USE OF SITE

A. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public.

1. Closure of the Memorial will only be permitted when the project work poses a safety risk to the public. If a serious issue arises, the Contracting Officer and USPP must be immediately notified.

2. Advance approval from the Contracting Officer is required. Notify the Contracting Officer a minimum of 5 business days in advance with the required closure times and duration.

1.10 OCCUPANCY REQUIRMENTS FOR EXISTING BUILIDING

A. Existing Building

1. Full Government Occupancy: Government will occupy the Memorial that will be under construction during the entire contract period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the Work so as not to interfere with the Public’s Memorial experience or the Government's day-to-day operations. Maintain existing exits, unless otherwise indicated.

a. Maintain an accessible path for public use to the Statuary Chamber and grounds at all times, excluding the area designated for staging. Requirements for a temporary lift to the Statuary Chamber are outlined in Section 015000 Temporary Facilities and Controls. A 40’-0” wide egress pathway on the Main Stairs to the Statuary Chamber must be provided at all times.

b. Contractor is to provide temporary signage directing able-bodied and disabled public visitors accordingly.

c. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from the Contracting Officer.

d. Maintain existing building in a weather tight condition throughout construction period. Repair damage caused by construction operations. Protect building and its occupants during construction period.

e. Contractor is responsible for monitoring and correcting any situations caused by inclement weather as soon as possible.

f. In case of damage caused by inclement weather, the United States Park Police (USPP) and CO should be notified at (202) 610-7500 as soon as possible. This requirement stands 24 hours a day, 7 days a week.

1.11 CONDUCT OF OPERATIONS

A. 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.

B. No signs or advertisements (except those specified herein) shall be displayed on the construction site, construction fencing or within the park unless approved by the Contracting Officer. This includes fence company and portable toilet signage.

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1.12 WORK RESTRICTIONS

A. On-Site Work Hours: Work may be generally performed between 6:00 AM and 4:00 PM, except when otherwise indicated.

1. Weekend Hours: Obtain permission from the Contracting Officer a minimum of 14 days in advance.

2. Early Morning Hours: Only as permitted by the District of Columbia and with permission from the Contracting Officer a minimum of 14 days in advance.

3. Federal Holidays: No on-site work is permitted.

4. February 22 (Abraham Lincoln’s Birthday): No on-site work is permitted.

5. July 3-5 (July 4th Holiday): No on-site work is permitted.

6. August 28: (Anniversary of the “I Have a Dream” Speech): No on-site work is permitted.

7. There may be other special events at the Memorial that will require full day or partial day work shutdowns. Contracting Officer will provide notification a minimum of 14 days in advance.

8. Work performed on Chamber Level shall occur between 6:00 AM and 11:00 AM to minimize visitor disturbance.

9. Hours for Core Drilling: Work to be performed during normal working hours. Coordinate all Core Drilling with NPS Construction Management Representative (CMR) a minimum of 14 days in advance. A NPS representative to be present for all core drilling work. No overtime work to be performed.

10. Any requested changes to work hours within the 14-day minimum notice may be accommodated but will be at the expense of the contractor for scheduling of extra USPP personnel on overtime. There will be no expense by the government to provide this accommodation.

B. Temporary Stoppages: The area surrounding the construction site may be subject to temporary shutdowns due to Government vehicle and/or pedestrian restrictions for security reasons (i.e.

Presidential motorcade) during the performance of this contract. If the Contractor receives notification from a third party concerning such restrictions and/or work stoppage requirement, the Contractor shall immediately notify the Contracting Officer providing the name of the individual and applicable agency including telephone number for contacting the individual that notified the Contractor of such restriction or work stoppage requirement, the applicable date and times. If this is a valid restriction or work stoppage requirement, the Contracting Officer may direct occasional short-term work stoppages or site restrictions to the Contractor.

C. Existing Utilities

1. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

2. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

3. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

D. 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:

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1. Notify Contracting Officer not less than 72 hours in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Contracting Officer’s written permission.

3. Hours for Utility Shutdowns: Work to be performed during normal working hours. A NPS representative to be present during all utility shutdowns. No overtime work to be performed.

E. Nonsmoking Building: Smoking is strictly prohibited anywhere within the building, on site and within the construction staging areas and yards. This included vaping and other substances.

F. Eating and Drinking: Consumption, handling and storage of food and beverages, with the exception of water, is prohibited within the building.

1.13 LOAD CAPACITY

A. All allowable structural loads (movable weight including equipment, vehicles, temporary structures, and people) must be strictly followed. Applicants are required to submit calculations, completed by a registered Professional Engineer1, certifying that the allowable maximum structural loads are observed.

Table 1: Load capacity of Lincoln Memorial pavement and surrounding sidewalks.

Vehicle Rear Axle Loads A5:E22A5:F28A5:F27A5:F26A5:E25 Surface Treatment Single Axle Limit (lbs.) Tandem Axle Limit (lbs.)

Asphalt Pavement 21,000 34,000

Concrete Paver 14,200 20,170

Exposed Aggregate Sidewalk 13,200 18,800

Estimated Maximum Gross Vehicle Weight (GVW)

Surface Treatment Single Axle Box Truck

(HS-10, HS-15)

Single Axle Tractor

(HS-15, HS-20)

Tandem Axle Tractor

(HS-15, HS-20)

Asphalt Pavement 26,250 47,250 68,000

Concrete Paver 17,750 31,950 43,360

Exposed Aggregate Sidewalk 13,200 29,700 40,420

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1.14 VIBRATION RESTRICTIONS

A. Excessive vibration at Lincoln Memorial and the surrounding historic site is potentially detrimental to the existing building materials, landscape features, wildlife and visitor health and safety. Sources of vibration include, but are not limited to, construction activities, heavy traffic, helicopters, etc.

B. Vibration limits to mitigate the risk of damage to historic structures must be in accordance with the following Swiss standards SN 640 312a. Sources of vibration must be operated and located in such a fashion that peak particle velocities stay below the guideline values identified for buildings in the Sensitivity Class: (3) Normally Sensitive. Specific peak particle velocities are noted in the Vibration Criteria section below.

C. Vibration Sources: At a minimum, the contractor must address the following potential sources of vibration:

1. Demolition or demolition equipment, such as hammers or chipping guns.

2. Moving heavy equipment or materials with floor jacks.

3. Dropping heavy loads (off handcarts, from a crane or lift)

D. Vibration Mitigation Plan: The Contractor must provide a written vibration mitigation plan for approval by the Contracting Officer prior to starting any construction activity that may produce deleterious vibrations. This study must include the following sections:

1. Identification of existing finishes susceptible to damage caused by vibrations.

2. Descriptions of sources of vibrations and schedules.

a. Construction schedule of activities.

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b. Equipment type, model, etc.

c. c. Purpose and location of use.

d. d. Duration of use.

3. Proposal for a vibration study of the existing conditions prior to the start of construction.

a. Proposal must address vibration concerns at the Memorial to the satisfaction of the

Contracting Officer.

b. Submit proposal for review and approval by the Contracting Officer prior to commencing study.

4. Results from the vibration study of existing conditions describing baseline conditions at the site with vibration monitoring recommendations during construction.

5. Methods planned to minimize vibration.

6. Vibration monitoring consultant contact and methodology

E. Vibration Monitoring: The Contractor is required to continuously monitor vibration generated by construction activities. This testing must be undertaken by qualified personnel using non-destructive methods, such as triaxial geophone monitoring equipment (vertical, radial traversal) with a microphone. Monitors must have wireless capacity to transmit responses as quickly as possible.

1. If vibration levels exceed predetermined threshold levels, work must cease and new approaches to completing the tasks must be proposed. New methods must minimize levels of vibration within acceptable standards.

F. Vibration Criteria: These requirements must be performed in collaboration with the CO following the CO approved monitoring methodologies and CO approved submission requirements described in the Vibration Mitigation Plan. NPS may stop work at any time if protocol is breached:

1. Sensitivity Class: (3) Normally Sensitive:

a. Occasional Vibrations:

1) Frequency (f) < 30 Hz, Peak Particle Velocity (V) < 15 mm/s (0.59 in/sec)

2) Frequency: 30 Hz < (f) < 60 Hz, Peak Particle Velocity (V) < 20 mm/s (0.79 in/sec)

3) Frequency (f) > 60 Hz, Peak Particle Velocity (V) < 30 mm/s (1.18 in/sec)

b. Frequent Vibrations

1) Frequency (f) < 30 Hz, Peak Particle Velocity (V) < 6 mm/s (0.24 in/sec)

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2) Frequency: 30 Hz < (f) < 60 Hz, Peak Particle Velocity (V) < 8 mm/s (0.31 in/sec)

3) Frequency (f) > 60 Hz, Peak Particle Velocity (V) < 12 mm/s (0.47 in/sec)

c. Continuous Vibrations:

1) Frequency (f) < 30 Hz, Peak Particle Velocity (V) < 3 mm/s (0.12 in/sec)

2) Frequency: 30 Hz < (f) < 60 Hz, Peak Particle Velocity (V) < 4 mm/s (0.16 in/sec)

3) Frequency (f) > 60 Hz, Peak Particle Velocity (V) < 6 mm/s (0.24 in/sec)

G. Exceeding Vibration Criteria: In the event that the vibration exceeds the criteria, the Contractor must adhere to the following protocol and is required to:

1. Stop all work if vibration criteria is exceeded.

2. Immediately notify the CO if a vibration level is exceeded.

3. Identify what activities generate the excessive vibration and propose measures to limit or reduce this condition. The CO must approve these measures.

4. Have alternative methods and/or plans read to implement if vibration limits are exceeded.

1.15 NOISE CRITICAL SPACE

A. Many areas of the building require special acoustical provisions and restrictions in order to meet allowed background and intrusive noise levels. These areas are designated as “Noise Critical Spaces.” Noise Critical Spaces include spaces that must be quiet, and spaces that contain noise-generating equipment.

B. The following areas have been designated as Noise Critical Spaces:

1. Lobbies, Security Screening Area, Vestibules, Sally Port, Elevator Access, Etc.

2. Exhibit Spine (Interpretive Center

3. Viewing Area (Interpretive Center)

4. Retail/Tenant Fit-out (Bookstore)

5. Public Restrooms

6. Break Room

7. Utilities

8. Statuary Chamber, Chamber Level Elevator Lobbies, NPS Office and USPP Office.

C. All penetrations in partitions and slabs enclosing Noise Critical Spaces shall be sleeved, packed, and sealed airtight with non-hardening sealant as shown on the Drawings and Details and as described elsewhere in the Specification.

1.16 SOILS OR SPILLS ON SITE

A. Should hard surfaces in or around the Memorial be inadvertently soiled or stained during an event, cleaning products must first be approved by the NAMA Division of Resource Management before proceeding. Ingredients in common cleaners vary widely and some may not be appropriate for surfaces found on site. For example, highly alkaline or highly acidic cleaners may irreparably damage masonry. Pigments in paint may spread when cleaned. Oil or petroleum-based stains may require yet another treatment.

B. If a surface is soiled or stained, this condition must immediately be brought to the attention of the National Park Service. The NPS may decide to clean the staining themselves or direct the permit

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holder to undertake this action using a specific product. Failure to alert the NPS of these circumstances and using the wrong cleaner may have significant adverse consequences. The permit holder is held liable under these circumstances.

1.17 SPECIAL CONSTRUCTION REQUIREMENTS

A. Project Website: A project website administered by the NPS will be used for purposes of managing communication and documents during the construction stage.

1. See Section 01 31 00 “Project Management and Coordination” for requirements on using the Project Website.

1.18 HAZARDOUS MATERIALS REPORT

A. A report entitled “Hazardous Materials Survey” has been prepared by Terracon Consultants, Inc.

1. A copy of the report is available to all plan holders with this package.

B. A report entitled “Limited Asbestos Sampling Report” has been prepared by Terracon Consultants, Inc.

1. A copy of the report is available to all plan holders with this package.

C. If conflicts occur between the report and drawings or specifications, the drawings and specifications govern.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01 11 00