04_Specs_NAMA_318722_Specifications_12092022_1.pdf

DRAFT

TABLE OF CONTENTS Last Printed on: 12/09/2022

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 26 01 CONTRACT MODIFICATION PROCEDURES

01 27 00 DEFINITION OF CONTRACT LINE ITEMS

01 31 00 PROJECT MANAGEMENT AND COORDINATION

01 32 16 CONSTRUCTION SCHEDULE

01 33 23 SUBMITTAL PROCEDURES

01 35 00 ARCHEOLOGICAL PROTECTION

01 35 23 SAFETY REQUIREMENTS

01 35 91 HISTORIC PRESERVATION TREATMENT

01 36 00 ACCIDENT PREVENTION

01 40 00 QUALITY REQUIREMENTS

01 42 00 REFERENCE STANDARDS

01 50 00 TEMPORARY FACILITIES AND CONTROLS

01 56 39 TREE RETENTION, PROTECTION, AND MITIGATION

01 57 19.12 NOISE AND ACOUSTIC MANAGEMENT

01 57 23 TEMPORARY STORM WATER POLLUTION PREVENTION

01 67 00 PRODUCT REQUIREMENTS

01 73 40 EXECUTION

01 74 19 CONSTRUCTION WASTE MANAGEMENT DISPOSAL

01 77 00 CLOSEOUT PROCEDURES

01 90 02 COMPETENCY OF SPECIALIST FOR STONE REPAIRS

PROJECT TABLE OF CONTENTS SPECIFICATION DESCRIPTION

NAMA 318722 TOC-1

TABLE OF CONTENTS Last Printed on: 12/09/2022

PROJECT TABLE OF CONTENTS SPECIFICATION DESCRIPTION

DIVISION 02 - EXISTING CONDITIONS

02 21 13 SITE SURVEYS

02 22 13 VIBRATION MONITORING

02 32 13 SUBSURFACE DRILLING AND SAMPLING

02 41 00 DEMOLITION AND DECONSTRUCTION

02 42 91 REMOVAL AND STORAGE OF HISTORIC CONSTRUCTION MATERIALS

DIVISION 03 - CONCRETE

03 30 00 CAST-IN-PLACE CONCRETE

03 35 23 EXPOSED AGGREGATE CONCRETE FINISHING

03 45 33 PRECAST STRUCTURAL CONCRETE

DIVISION 04 - MASONRY

04 03 00 CONSERVATION TREATMENT FOR PERIOD MASONRY

04 20 00 UNIT MASONRY

DIVISION 31 - EARTHWORK

31 11 00 CLEARING AND GRUBBING

31 13 00 SELECTIVE TREE REMOVAL

31 23 00.00 20 EXCAVATION AND FILL

31 37 00 RIPRAP

31 63 33 MICROPILES

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 05 33 LANDSCAPE ESTABLISHMENT

32 52 00 SOIL, SEED, AND SOD

32 93 00 EXTERIOR PLANTS

NAMA 318722 TOC-2

NAMA - 318722 01 11 00 - 1

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) – West Potomac Park and Tidal Basin and specifically the four general work areas listed below:

Tidal Basin East (TB-E) Tidal Basin West (TB-W) West Potomac Park – South (WPP-S) West Potomac Park - North (WPP-N)

B. The Design Build Work generally consists of the design and construction of the following:

1. The Work includes the rehabilitation of existing seawalls, regrading of the adjacent areas and all required temporary construction works along the Tidal Basin-East (TB-E), Tidal Basin-West (TB-W), West Potomac Park – South (WPP-S) and West Potomac Park -North (WPP-N) areas.

NAMA - 318722 01 11 00 - 2

The proposed wall section is further described in Section 1.5 of the RPF and is generally outlined in the Drawing Set. A general summary of the limits of the individual seawall areas follows:

TB-E seawall is approximately 1,182-feet long TB-W seawall is approximately 808-feet long WPP-S seawall is approximately 2,438-feet long WPP-N seawall is approximately 2,235-feet long (290 feet of wall in this area is not included in the Contract and instead will be constructed by D.C. Water and Sewer Authority)

Wall mock-up section approximately 20 feet long

The seawalls were constructed, or modified, at different time periods dating from the late 1800’s to the mid to late 1950’s. From historical documents, it is believed that all wall sections are supported on top of a ground supported stone layered foundation which is approximately six feet thick by approximately 20 feet wide. Cross sections of the seawalls vary from stacked stone structures to reinforced concrete backed seawalls with stacked and grouted stone facings.

For delivery of materials, work will be required at the Southern end of West Potomac park to design, construct maintain and ultimately remove a pier, landings, and staging/operations area. These work areas must be restored upon demobilization from the project.

The Work for the Mock up Wall section, described in Specification Section 04 20 00 and shown on Drawing G12.0, must be completed and approved before the initiation of any work on the seawalls. The mockup will be used throughout the project to evaluate the constructed seawall for acceptance.

The Work at TB-E and TB-W includes demolition and removal of the existing stone seawall (selective demolition), cap, and concrete sidewalk, with salvage of existing historic face stone where not embedded in concrete. Demolition, removal and replacement of trees and fencing and removal and reinstallation of miscellaneous appurtenances (benches, trash cans, etc.) to facilitate regrading and restoration work is included. The new work consists of design and construction of a pile supported foundation (founded in bedrock) to support a cast-in-place relieving platform, pre-cast Z-sections which support both reclaimed and new stacked stone wall facing surfaces, cap stone, grouting, sidewalks, stormwater conveyance utility system cleaning and repairs, protection of existing utilities, backfill, grading, sodding and replacement of trees and landscaping.

The Work at WPP-S includes demolition and removal of the existing stone seawall (selective demolition) and cap, with salvage of existing historic face stone where not embedded in concrete. Demolition, removal and replacement of trees and removal and reinstallation of miscellaneous appurtenances (benches, trash cans, etc.) to facilitate regrading and restoration work is included. The new work consists of design and construction of a pile supported foundation (founded in bedrock) to support a cast-in-place or pre-cast relieving platform, pre-cast Z-sections which support both reclaimed and new stacked stone wall facing surfaces, cap stone, grouting, protection of existing utilities, backfill, grading, sodding and replacement of trees and landscaping.

The Work at WPP-N includes demolition and removal of the existing stone seawall (complete demolition) and cap. The majority of existing stone in this portion is embedded

NAMA - 318722 01 11 00 - 3

in concrete and will likely not be salvaged for re-use as stacked stone wall facing surfaces, but it may be used as backfill below the relieving platform if approved. Recovered stone may be salvaged for re-use. Demolition, removal and replacement of trees and removal and reinstallation of miscellaneous appurtenances (benches, trash cans, etc.) to facilitate regrading and restoration work is included. The new work consists of design and construction of a pile supported foundation (founded in bedrock) to support a cast-in-place or pre-cast relieving platform, pre-cast Z-sections which support both reclaimed and new stacked stone surfaces, cap stone, grouting, protection of existing utilities , backfill, grading, sodding and replacement of trees and landscaping.

Significant coordination and planning of seawall rehabilitation project with the DC Water Tunnel project will be required in this area.

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

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

a. Inlet Bridge: The bridge located at the center of the project area and which is the starting point (Station 0+00) of all the seawall areas including the TB-E, TB-W and WPP-S seawalls.

b. Arlington Memorial Bridge: The bridge located at the north end of the project and which is the termination of the WPP-N seawall.

c. Thomas Jefferson Memorial (TJM): The Memorial within TB-E with a plaza leading down to the Tidal Basin where the west steps leading up to the plaza serve as a terminus point of the TB-E seawall area.

d. Franklin Delano Roosevelt (FDR) Memorial: The within TB-W with a plaza leading down to the Tidal Basin and where the north end of the TB-W seawall area terminates near the Japanese Pagoda.

e. Ohio Drive SW: The roadway east of the WPP-S and WPP-N seawalls and is partially the DC Water Project construction area.

f. West Basin Drive: The roadway west of the FDR memorial area.

g. East Basin Drive SW: The roadway south of the TJM memorial area.

C. Project will be constructed under a single prime contract via a Design-Build delivery method. A two-stage procurement will be conducted to select a D-B Contractor. Further details of this advertisement and selection process is provided in Section ___ of the RFP.

1.3 WORK SEQUENCING CRITERIA

A. The Work shall be conducted with the following completion dates and sequencing considered and adhered to:

1. TB-E and TB-W seawall renovations shall be completed (including demobilization and clean up) to allow full access to visitors and Park personnel in sufficient time for the celebration of the Semiquincentennial (250th anniversary of the signing of the Declaration of Independence). All work in these areas shall be completed no later than May 1, 2026.

2. Work at WPP-N and WPP-S can occur at the same time as the TB-E and TB-W projects but is not required to be complete at the same date (Semiquincentennial). Final completion date is October 3, 2027 for all project work areas.

NAMA - 318722 01 11 00 - 4

3. The work shall ensure the continuity of operations, visitor protection, and ABAAS-compliant access to the TJM and FDR Memorials throughout the period of performance.

Elements of the overall work must be executed in the following sequence:

a. Construction of temporary TB-W Construction Landing, WPP-S Construction, Staging Area and site fencing. Pier (Drawing Sheet G10.0 CONSTRUCTION

STAGING PLAN 2 ).

b. Construction of the USPP security gates at TB-E. This work must be coordinated with the USPP and the NPS. (Drawing Sheet G09.0 CONSTRUCTION STAGING

PLAN 1 ).

c. Construction of TB-E project fencing to maintain separation of construction activities from public access routes, site access, storage areas and traffic control measures from the Inlet Bride to E. Basin Drive SW. This work must be coordinated with the USPP and the NPS. (Drawing Sheets G23.0 and G24.0 CONSTRUCTION ACCESS PLANS, G26.0 TRAFFIC PLAN and G28.0-G30.0 PEDESTRIAN

TRAFFIC FLOW PLANS ).

d. All work within the TJM security zone shall be planned and scheduled in coordination with the USPP a minimum of two (2) months prior to construction activity within the security zone. All construction activity within the security zone shall be executed in strict accordance with the planning and scheduling established and shall be accomplished in the minimum amount of time practicable.

e. All subsequent work items.

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.

Specific projects (not under the contracting authority of NPS) include the following:

1. District of Columbia Water and Sewer Authority – DC Clean Rivers Project, Potomac River Tunnel – Contract B, Tunnel System Construction (identified on Drawing Sheets G10.0 and G11.0 CONSTRUCTION STAGING PLANS 2 & 3 ). The work for this project is located in the vicinity of WPP-S and WPP-N and is anticipated to be a multi-year construction period. Traffic rerouting will occur of Ohio Drive SW and review of those plans is encouraged.

2. Others?

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

1. None identified for immediate vicinity of TB-E, TB-W, WPP-S or WPP-N work areas.

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

NAMA - 318722 01 11 00 - 5

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.

1. TB-E: The existing stone treads at the west most stair access to the TJM will be removed, stored and re-installed at the new level during construction of the transition from the memorial stairs to the new seawall walkway. (Dwg. Sht. S15.1 PROPOSED SEAWALL DETAILS 1). Historic stone of the existing seawall will be removed, cleaned, stored, resized (if feasible) and re-installed during construction to accomplish refacing of the seawall. The stone treads and historic seawall stone are to be stored by the DB Contractor until reinstallation.

2. TB-W: Historic stone of the existing seawall will be removed, cleaned, stored, resized (if feasible) and re-installed during construction to accomplish refacing of the seawall. The stone is to be stored by the DB Contractor until reinstallation.

3. WPP-S: Historic stone of the existing seawall will be removed, cleaned, stored, resized (if feasible) and re-installed during construction to accomplish refacing of the seawall. The stone is to be stored by the DB Contractor until reinstallation.

4. The contractor may re-use demolished concrete walkways, seawall components and rip-rap materials, cleaned and properly prepared, as backfill below the new seawall relieving platform.

5. Existing shoreline revetment rip-rap can be reused as scour protection upon approval.

6. The existing benches, trash receptacles, recycling receptacles, incidental signage, ballfield structures, equipment. amenities, and other miscellaneous Park property shall be removed from the project limits and staging areas, tagged, stored and reinstalled following repair of disturbed areas and landscaping at the same location as removed unless directed otherwise by the NPS.

C. Preservation of Natural Features and Cultural Landscape:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government. (Specification Sections 01 50 00, 01 56 39, 01 57 19.12 and 01 57 23).

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.

(Specification Section 01 56 39).

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 site features, including security systems, 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.

7. 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.

NAMA - 318722 01 11 00 - 6

8. 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 Thomas Jefferson Memorial, Franklin Delano Roosevelt Memorial, other

Memorials within or near the project area and surrounding sites are United States National Memorials and are cultural icons 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 adjacent historic features and buildings, specifically exterior historic stone, and other stone material within the Memorials. 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.

3. Utilize protective measures, rubber matting, plating, plywood, etc., to prevent equipment or materials from damaging the Memorials and other park features in the vicinity of the work.

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

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

a. Granite Curbs

b. Stairs

c. Marble walls and columns

d. Granite Terrace Wall

e. Exposed aggregate paving

f. Handrails

g. Bollards

h. Trees, Hedges, Vegetation

6. Do not remove or damage any building element.

7. Do not fasten ropes, cables or guys to the existing structures.

8. Carefully supervise all work to minimize damage to existing structures.

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

E. Driveways and Entrances: Keep roads, sidewalks and entrances serving premises clear and available to Government, Government's employees, emergency vehicles and visitors 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 for work within the

TJM security area.

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. There are no additional load restrictions on the bridges accessing the site. Information regarding rules and regulations for vehicular traffic on Park

NAMA - 318722 01 11 00 - 7

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, if and as applicable:

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

2. Provide for delivery of Owner-furnished products 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.

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. None Identified

1.7 ACCESS AND SECURITY

The following section applies to the area around the Thomas Jefferson Memorial and more specifically the TB-E work area when working from Station TB-E 1005+00 to 1012+00.

Summary

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

a. Material and equipment screening.

b. Contractor access to project site and staging area.

c. Screening procedures for personnel and vehicles.

d. Prohibited items to project site.

2. The purpose of this section is that while the Thomas Jefferson 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 performance within the security zone. USPP reserves the right to execute safety measures and searches as needed 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.

NAMA - 318722 01 11 00 - 8

B. Security Overview

1. All USPP officers, 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 have a dedicated K-9 for specific hours (6 am to 10 am) for screening prior to entering the TJM security zone construction area during construction hours.

b. There will be USPP K-9 Unit stations at the main TJM site access point will also be covering the TB-E Project Site. The TB-E Project Site is for construction deliveries only. No contractor vehicles are allowed past the TB-E Project Site vehicle barrier.

c. The vehicle access gate shall be a NMSB XV M30 (K4) mobile and portable barrier, manufactured by Nasatka Security (www.nasatka.com).

d. Smaller materials and tools will be required to be hand carried to the project site.

Contractor vehicles are to be parked in the staging area as identified on the drawings. Overflow parking will not be provided by the Government and is the Contractor’s responsibility.

C. Contractor Personnel Background Checks and Badging Security Review

1. Identification Badge

a. Contractor shall provide identification badges for all personnel working in the project site and personnel will be required to always visibly display their identification badge while on the project site.

b. ID badges must contain Contractor name, person’s name, DOB, access expiration date, and contract name. All badges must be uniform for any and all personnel working on the project.

D. Personnel, Material, and Equipment Screening and Access

1. Access to Project Site

a. Access to the TB-E Project Site will be via the “ 20’ construction gate and mobile security barrier with 12’ opening” located along E Basin Dr. SW on the southwest side of the TB-E site. Personnel must present their identification badge and are subject to screening of materials, bags, tools, personal items, etc. by USPP.

Details and access plan provided on Drawing Sheet G09.0 CONSTRUCTION

STAGING PLAN 1.

2. Deliveries

a. General Procedures

1) Deliveries will be through the security gate labeled “security barrier with 12’ opening”. (Drawing Sheet G09.0 CONSTRUCTION STAGING PLAN 1).

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

NAMA - 318722 01 11 00 - 9

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 .

3) The K-9 officer will conduct a sweep of the vehicle for explosives using 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.

5) At this point, if cleared, 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) Contractor to provide a combination security lock and combination must be shared with USPP.

3) Vehicle drivers must present ID to K-9 officer. Any other personnel must present ID upon request.

4) After the K-9 sweep is conducted, a USPP officer 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.

5) 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. Contractor furnished elements

a. K9 unit (vehicle, officer and dog) tent / shade structure.

b. Anti-fatigue drainage mat placed at screening area.

c. Security gate(s).

5. Prohibited Items

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

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

NAMA - 318722 01 11 00 - 10

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.

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 a 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/STRUCTURES

A. Existing Building/Structures

NAMA - 318722 01 11 00 - 11

1. Full Government Occupancy: Government will occupy the Memorial areas 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 grounds at all times, excluding the area designated for staging or construction activities.

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

e. 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.

1.12 WORK RESTRICTIONS

A. On-Site Work Hours: For all project areas (TB-E Station TB-E 1000+00 to 1005+00, TB-W, WPP- S and WPP-N) work may be generally performed 24 hours per day, 7 days per week.

B. Vehicle deliveries are subject to K-9 sweep referenced in sections above.

C. General: Any requested changes to delivery and/or 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.

D. 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.

NAMA - 318722 01 11 00 - 12

E. 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.

F. 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:

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.

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

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 Jefferson Memorial and Franklin Delano Roosevelt Memorial pavement, project areas 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

VIBRATION RESTRICTIONS

NAMA - 318722 01 11 00 - 13

B. Excessive vibration at Jefferson Memorial, Franklin Delano Roosevelt Memorial and adjacent Memorials 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.

C. 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.

D. 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)

4. Cofferdam installation

5. Seawall pile installation

E. 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.

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 Memorials 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

F. 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.

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

NAMA - 318722 01 11 00 - 14

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)

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)

H. 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 Contracting Officer if a vibration level is exceeded.

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

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

1.14 SOILS OR SPILLS ON SITE

A. Should hard surfaces in or around the Park 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.

NAMA - 318722 01 11 00 - 15

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 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.

1.15 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.

1.2 HAZARDOUS MATERIALS REPORT

A. During the geotechnical data sampling phase of the D-B RFP preparation, methane gas was encountered which caused delays in drilling and sample recovery. Notes from the sampling delays are included in the geotechnical data reports for both the Tidal Basin and West Potomac Park sampling areas. The documents are included in the BDR, Appendix A.

1. Copies of the reports are included within this package and are for information only. DB Contractor shall perform additional data collection, testing and reporting necessary to complete the work that is proposed by the DB team.

B. 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

NAMA - 318722 01 26 01 - 1

CONTRACT MODIFICATION PROCEDURES

SECTION 01 26 01

CONTRACT MODIFICATION PROCEDURES

PART 1 GENERAL

1.1 SUMMARY

A. The work of this section consists of administrative and procedural requirements for contract modifications.

1.2 DEFINITIONS AND ALLOWANCES

A. Home Office Overhead: Those costs incurred in support of all of a contractor’s projects and not attributable to a specific job. The cost for home office overhead is only allowed as a percentage of all direct work excluding profit. The following items represent allowable home office overhead costs identified in Part 31 of the Federal Acquisition Regulation (FAR):

1. Rent

2. Utilities

3. Furnishings

4. Office equipment

5. Executive and management staff not exclusively assigned to the project

6. Support, accounting, and administrative staff

7. Preparation of cost proposals, estimating, and schedule analyses connected with

Modifications

8. Estimating and preconstruction services

9. Mortgage costs

10. Real estate and corporate taxes

11. Automobile maintenance and travel costs for home office personnel

12. Home office insurances i.e. structure, automotive, umbrella, flood, etc.

13. Depreciation of equipment and other assets

14. Home office supplies (paper, staples, etc.)

15. Legal services

16. Accounting and data processing

17. Professional fees/registration

B. General Conditions (Field Office Overhead): Management and administrative costs incurred on site for the designated project. Costs associated with the preparation of modifications will not be allowed. The costs for these items are to be included only in the general conditions of the modification estimate. Only in the case of a contract time extension are additional general conditions included in modifications. The following items, if applicable, are considered allowable costs for calculating General Conditions:

1. Project Manager, Assistant Project Manager

2. Superintendent, Assistant Superintendent

3. Quality Control, Safety Officer, Environmental Manager, etc.

NAMA - 318722 01 26 01 - 2

4. Engineers

5. Travel, lodging, and per diem (as established by Federal Travel Regulations)

6. Scheduling

7. Field Office Trailers and associated temporary utilities

8. Field office supplies

a. Mailing and couriers

b. Reproduction costs

c. Storage

d. Phones

e. Computers

f. Copiers

1. Personal vehicles i.e. Superintendent Pickup trucks

B. General Requirements: These are costs directly associated with the project and are necessary to perform the actual work of the modification. These costs shall be shown as direct costs in the estimate. The following items, if applicable, are considered allowable costs for calculating General Requirements:

1. Hoisting

2. Material handling

3. Temporary fencing

4. Port-a-lets

5. Trash removal, dumpsters

6. Barricades

7. Small tools

8. Safety supplies

9. Scaffolding

10. Daily cleaning

11. Traffic control

12. Temporary signage

13. Temporary heating and power

C. Personnel Costs: Costs included in the modification must only be for General Conditions staff and workers actually present and working on the project site. Modification costs for salaried workers are only allowed within the structure of a 40 hour week and no overtime or holiday pay will be allowed.

1. Worker Hourly Rates are costs directly associated with the individual worker and consist of the following:

a. Base Rate: This is the hourly rate paid directly to the worker

b. Labor Burden: Employer payments of all applicable burdens, this includes insurance and taxes that the business must pay on behalf of the worker to government entities and educational forums , such as:

1) Social Security

2) Medicare

3) Workers Compensation– Policy and company calculation to be made available.

4) FUTA– Cap Rate and percentage to be proportionally allocated over one year.

NAMA - 318722 01 26 01 - 3

1) SUTA– Cap Rate and percentage to be proportionally allocated over one year.

2) Union agreement costs – Other costs required under an enforceable collective bargaining agreement.

b. Fringe Benefits: Various non-wage compensations provided to employees such as:

1) Health Care Insurance Premiums

2) Cell Phone

3) Clothing

4) 401K and Pensions

5) Vehicle allowances

6) Gas allowance

7) Life insurance premiums

8) Disability insurance

9) Other Fringe Benefits required under an enforceable collective bargaining agreement

B. Bonuses or Deferred Compensation: No Bonus or Deferred Compensation will be allowed within any components of pricing including Home Office Overhead, General Conditions, General Requirements, Hourly Worker Rates, or the direct costs of work.

C. General Liability Insurance: An insurance policy that protects the contractor from claims resulting from bodily injury or property damage to a third party. Include this as a separate line item within all modification proposals and provide a current insurance quote upon request.

D. Performance and Payment Bonds: A performance bond is a surety bond issued by an insurance company or bank to guarantee satisfactory completion of a project. The Payment Bond guarantees that the contractor will pay the labor and material costs they have incurred. Banks and Insurance companies charge a premium for each individual project based on a sliding scale which relates to the size of the project. Include this as a separate line item in modification proposals and provide current company bonding rates upon request.

E. Builder’s Risk Insurance: This covers the contractor’s loss due to fire, high winds, or other natural forces. This is not reimbursed by the National Park Service (NPS) and shall not be included in modification proposals.

1.2 MODIFICATION PROPOSAL PRICING REQUIREMENTS

A. General:

1. Your proposal must be received in the format and within the time frame specified in the Request for Proposal letter. Costs or delays resulting from failure of contractor to submit within the time frame specified will not be compensable.

2. The proposal must be detailed with itemized lists of equipment, materials, labor, production rates, overhead, profit, and bond markup for each item. Labor costs must be itemized by craft and hourly rate, including Fringe Benefits and Labor Burden. If the costs of Fringe Benefits and Labor Burden are not itemized, it is assumed that that they are included in the hourly rate shown, or contractor is not requesting reimbursement.

NAMA - 318722 01 26 01 - 4

Contractor may utilize the government provided Contractor Estimate Form, or their own form, provided that it contains the same information and level of detail as the Gov’t provided form.

3. Requests for extensions of contract time as a result of this change must be justified with a Time Impact Analysis (TIA). Refer to Division 01 Specification, “Construction Schedule”, for time impact analysis requirements. TIA and associated costs must be received with the proposal by the date shown within the Request for Proposal letter.

Contractor’s failure to submit within the specified time frame will be construed as the Contractor waiving the right for additional time and no time extension will be allowed.

4. All supporting documentation used to justify the proposed modification will be made available to the Contracting Officer upon request.

5. Contractor must review and approve all subcontractor/supplier pricing in detail for proper format, scope, production rates, and pricing prior to submission to the NPS. All delay costs associated with not reviewing and approving subcontractor/supplier pricing will be borne by the Contractor.

6. All pricing and production rates within the estimate must be based on fair and reasonable pricing and cannot include built-in contingency.

B. Labor:

1. Contractor shall estimate the cost of labor by itemizing each craft involved, indicating worker hourly rate (base rate + labor burden + fringe benefits) for each and itemizing the hours required for each craft that will be directly engaged in modification work.

Any work proposed that will require overtime work or premium pay shall be itemized separately. All rates shall be in accordance with the Davis-Bacon Act as incorporated herein. Labor Burden may include payroll taxes, Social Security, unemployment insurances, workers compensation insurance, FICA, FUTA, and other direct costs resulting from Federal, State or local laws.

2. Itemize labor costs for equipment operators separate from equipment costs.

3. The labor cost for foremen shall only be costs for related work required for the modification.

C. Materials:

1. The estimated cost for materials shall include quotes from multiple sources. Material prices must include all applicable fees and credits, including but not limited to, sales tax, freight and delivery charges, and tax rebates.

2. No markup shall be applied to any material provided by the NPS.

D. Equipment:

1. Equipment used for the project must be…