B08_Attch_05_NAMA_318722_Specs.pdf

NAMA 318722

ATTACHMENT 5

PROJECT SPECIFICATIONS

TABLE OF CONTENTS

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

A. SUBMITTAL LIST

B. TEST REQUIREMENT LIST

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

A. ACCESSIBILITY INSPECTION REPORT & FORM

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 67 00 PRODUCT REQUIREMENTS

01 73 40 EXECUTION

01 74 19 CONSTRUCTION WASTE MANAGEMENT DISPOSAL

A. PROJECT WASTE MANAGEMENT PLAN WORKSHEET

B. STANDARD SOLID WASTE CONVERSIONS

01 77 00 CLOSEOUT PROCEDURES

A. CLOSEOUT AND OPERATION & MAINTENANCE REQUIREMENTS

DIVISION 01 - GENERAL REQUIREMENTS

NAMA-318722 TOC-1

02 21 13 SITE SURVEYS

02 22 13 VIBRATION MONITORING

02 32 13 SUBSURFACE DRILLING AND SAMPLING

02 41 00 DEMOLITION AND DECONSTRUCTION

03 30 00 CAST-IN-PLACE CONCRETE

03 35 23 EXPOSED AGGREGATE CONCRETE FINISHING

03 45 33 PRECAST STRUCTURAL CONCRETE

04 20 00 UNIT MASONRY

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

32 05 33 LANDSCAPE ESTABLISHMENT

32 52 00 SOIL, SEED, AND SOD

32 93 00 EXTERIOR PLANTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

DIVISION 02 - EXISTING CONDITIONS

DIVISION 03 - CONCRETE

DIVISION 04 - MASONRY

DIVISION 31 - EARTHWORK

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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 sequencing criteria.

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. Soils or spills on site.

15. Special construction requirements.

16. 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:

1. Tidal Basin East (TB-E)

2. Tidal Basin West (TB-W)

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3. West Potomac Park – South (WPP-S)

4. 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, ancillary design and construction 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.

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

a. TB-E seawall is approximately 1,182-feet long

b. TB-W seawall is approximately 808-feet long

c. WPP-S seawall is approximately 2,438-feet long

d. 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)

e. 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, permitting allows for the construction of temporary works 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 demolition work on the seawalls. Recovery of stone for use in the mock up can be obtained from the loose stones at the West Potomac Park South area, subject to approval of the NPS.

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 schematic design preferred alternative consists of design and construction of a pile supported foundation

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(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.

Design, fabrication and installation of the Wayside Interpretive Sign in Tidal Basin – East.

The Work at WPP-S includes demolition and removal of the remaining historical 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 schematic design preferred alternative 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 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 schematic design preferred alternative 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

Which can be found by accessing https://www.nps.gov/orgs/1739/secretary-standards-treatment-historic-properties.htm

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.

https://www.nps.gov/orgs/1739/secretary-standards-treatment-historic-properties.htm https://www.nps.gov/orgs/1739/secretary-standards-treatment-historic-properties.htm

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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.

1.3 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SUBMITTAL PROCEDURES

1. Tidal Basin Silt and Debris Curtain Deployment, Maintenance and Demobilization /

Removal Plan

1.4 WORK SEQUENCING CRITERIA

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

1. Engineering and design of all portions of the seawall rehabilitation, associated investigations, analysis, grading, drainage, walkways, utilities, wayside interpretive sign, landscaping, tree mitigation, exhibits, reports, permits, related project components, services and activities necessary for the full execution of the project in conformance with the standards and requirements provided in DSC Workflows (U.S. National Park Service) (nps.gov). All work on these requirements shall be completed according to Project Solicitation Section F.

2. TB-E and TB-W seawall renovations completions are the priority and it is desired by the

NPS to 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).

3. 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).

4. 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.

5. The DB Contractor will be allowed to claim, and submit for the Contracting Officer’s approval, Substantial Completion of work areas as they are finished. The areas which qualify for submittal are be designated as outlined in Section 1.2.A of this Specification.

To be “substantially complete”, construction and inspection, testing and verification of completion of those tasks, consistent with the approved plans and specifications, shall be entirely completed within a designated work area. Office and reporting procedures (e.g.

Project Record Drawings, Warranty paperwork, etc.) may continue. Refer to Specification Section 01 77 00 – Closeout Procedures for additional requirements.

1.5 WORK UNDER OTHER CONTRACTS

https://www.nps.gov/dsc/workflows/index.htm https://www.nps.gov/dsc/workflows/index.htm

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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 of Ohio Drive SW will occur and review of those plans is required.

2. The EA lists other potential projects in the region that may occur during this contract period.

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.

1.6 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.

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.

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4. The contractor may re-use demolished concrete walkways, seawall components, etc., as riprap materials, cleaned and properly prepared, as backfill below the new seawall relieving platform. Cleaning shall include removal or burning off of protruding reinforcement steel.

5. Existing shoreline revetment riprap 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 not indicated for removal, 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.

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.

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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

Handrails, bollards and chain within the construction zones shall be removed and replaced with new materials matching the existing features.

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.

https://www.nps.gov/tps/standards.htm

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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 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.

1.7 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

1.8 ACCESS AND SECURITY

A. For the duration of the construction work phase of the Tidal Basin – East and Tidal Basin –

West contract, the D-B Contractor shall provide and maintain a floating silt and debris curtain, NAMA-318722 01 11 00-9 with highly visibility buoys, across the Tidal Basin-East and Tidal Basin-West waterway areas as generally indicated by the Construction Staging Plans shown on sheets G09.0 and G10.0 of the drawings. Generation and submittal of a Deployment, Maintenance and Demobilization/Removal plan is required by the D-B Contractor to the Contracting Officer.

B. The following sections (1.7.B through 1.7.E) apply to the area around the Thomas Jefferson Memorial and more specifically the TB-E work area when working from Station TB-E Stations 1005+00 to 1012+00.

1. This 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 to inform the D-B Contractor team 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.

C. 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. NPS has budgeted 6 months of USPP time for the work in this area and D-B Contractor shall plan the construction duration accordingly or additional costs will be borne by the D-B Contractor.

b. The site will have a dedicated K-9 for specific hours (6 am to 10 am, weekdays, excluding holidays) for screening prior to entering the TJM security zone construction area during construction hours.

c. There will be USPP K-9 Unit stations at the main TJM site access point. This team 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 with screening at access gate by USPP.

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

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drawings. Overflow parking will not be provided by the Government and is the Contractor’s responsibility.

D. 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.

E. Personnel, Material, and Equipment Screening and Access

1. Access to Project Site

a. Personnel must present their identification badge and are subject to screening of materials, bags, tools, personal items, etc. by USPP at all access points. Details and access plan provided on Drawing Sheet G09.0 CONSTRUCTION STAGING

PLAN 1.

b. Access to the TB-E Project Site will be via two methods:

1) Access by land 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.

2) Access by water will require screening by USPP K9 officer at the TB-W landing prior to transporting material to TB-E.

3) Screenings via methods other than vehicle or outside the regular USPP K9 access hours of 0600-1000 will require advance coordination with USPP.

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 to the CO 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).

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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 .

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 for all construction fencing gates.

3) Personnel in vehicles requiring access 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 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. The vehicle access gate shall be a NMSB XV M30 (K4) mobile and portable barrier, manufactured by Nasatka Security (www.nasatka.com), or equivalent.

b.

http://www.nasatka.com/

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c. K9 unit (vehicle, officer and dog) tent / shade structure large enough to fit K9 SUV with adequate room to open all doors underneath cover

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

e. 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

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

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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

1.9 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.

1.10 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.

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1.11 OCCUPANCY REQUIREMENTS FOR EXISTING BUILDING/STRUCTURES

A. Existing Building/Structures

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.

1.12 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.

1.13 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. The section around the Thomas Jefferson Memorial and more specifically the TB-E work area when working from Station TB-E Stations 1005+00 to 1012+00 will require security screening and could practically limit the production of work because of the required screenings.

B. Vehicle and barge deliveries to TB-E are subject to K-9 sweep referenced in sections above and are limited to weekday hours of 6:00 AM to 10:00 AM (excluding NPS holidays).

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

NAMA-318722 01 11 00-15

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.

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.

4. D-B Contractor will be required to submit a construction workplan before performing any underground work (e.g. pile installations, excavations, etc.) for review by the government.

Additional utilities or obstructions may be identified at that time which could require an adjustment in the D-B Contractor's workplan at no additional cost to the Government.

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: All utility interruptions can only be performed with an NPS representative present.

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

1.14 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.

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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

1.15 VIBRATION RESTRICTIONS

A. See specification Section 02 22 13 – Vibration Monitoring.

1.16 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.

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.

1.17 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. During the geotechnical data sampling phase of the DB Project Scope 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.

NAMA-318722 01 11 00-17

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

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

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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.

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

9. Personal vehicles i.e. Superintendent Pickup trucks

C. 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

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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

D. 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.

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

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

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

1) Health Care Insurance Premiums

2) Cell Phone http://en.wikipedia.org/wiki/Employee

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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

E. 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.

F. 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.

G. 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.

H. 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.

1.3 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. 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.

http://en.wikipedia.org/wiki/Surety_bond http://en.wikipedia.org/wiki/Insurance http://en.wikipedia.org/wiki/Bank http://www.nps.gov/dscw/publicforms.htm#ct

NAMA-318722 01 26 01-5

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 appropriately sized for the work being performed.

2. Do not include costs for “miscellaneous tools and equipment”, in your proposal for a replacement value of $500 or less. Costs shown in excess of $500 must be broken out separately.

3. Regardless of ownership, the rates to be used in determining equipment rental costs shall be the lowest cost from one of the following sources:

NAMA-318722 01 26 01-6

a. U.S. Army Corps of Engineers , Ownership and Operating Expense Schedule (use latest edition and applicable region)

b. Construction Blue Book

c. Local equipment rental rates, documented by actual invoice charges, or itemized vendor quotes.

4. The estimated equipment rates shall include the operating costs of all fuel, oil, lubrication, supplies, small tools, necessary attachments, ground engaging components, tires & tracks, routine repairs and maintenance (cost of major repair and overhaul is not allowed per FAR 31.105(d)(2)), depreciation, storage, insurance, and all incidentals. Mobilization, if applicable, may be included for equipment solely used on the modification work but must be listed separately.

5. Estimate the full rate for equipment only for the duration that the equipment will be utilized to accomplish the work of the modification.

6. Standby unit rates used are to be in accordance with paragraph 1.3, D, 2, above. If the US Army Corp of Engineers is utilized then their standby rates prevail.