NSWC Demolition Statement of Work_Site Visit.pdf

NAVFAC South Potomac Dahlgren

Facilities Engineering Division

SCOPE OF WORK

Demolish Buildings 370, 370A, 370B, 409, 462, 1352

Design Manager: Patrick Shifflette 1/28/2021 (Revised)

1. PROJECT DESCRIPTION:

a. The base scope of this project is to completely demolish buildings/structures 370

(Rocket Laboratory), 370A (Magazine), 370B (Boiler House), 409 (Magazine/Weighing Room), 462 (Systems Integration Lab), and 1352 (Storage/Test Fixture Assembly Building) and restore sites. Project will consist of complete facility demolition, including the total removal of all foundations, removal and disposal of all utilities, site amenities, and associated site features. Demolition will include the termination of all site utilities (water, power, telecommunications etc.). Hazardous material testing and containment will be performed at all sites prior to the start of demolition. Site restoration activities will include back filling, grading and seeding the disturbed sites.

b. Building Descriptions

The descriptions below for all facilities are brief. Please refer to attachment A for more detailed building descriptions.

a. Building 370 (Rocket Laboratory): Building 370 is an existing one-story building, with an attic, on a slab on grade. The building footprint is approximately 2,200 square feet. This building acted as an explosive research facility. It houses multiple storage rooms and two toilet rooms. This building was built in 1944 as a rocket laboratory. There was an addition and renovation done to the building in 1991.

b. Building 370A (Magazine): Building 370A is an existing one-story building, on a slab on grade. The building footprint is approximately 175 square feet.

This building acted as a magazine for the explosive research facility. It is a single room building. This building was built in 1944.

c. Building 370B (Boiler House): Building 370B is an existing one- story building, on a slab on grade. The building footprint is approximately 150 square feet. The building acted as a boiler house for the explosive research facility. The building was built in 1944.

d. Building 409 (Magazine/Weighing Room): Building 409 is an existing one-story structure comprised of two Quonset hut-like structures partially built into grade with a 6” concrete slab. The footprints of the two structures are approximately 195 square feet and 130 square feet. The structures have a concrete retaining wall at their faces and extending out perpendicular from the faces. This building acted as a magazine and weighing room for the explosive research facility. This building was built in 1948.

e. Building 462 (Systems Integration Lab): Building 462 is an existing one-story structure comprised of a Quonset hut-like structure with a 6” concrete slab. The footprint of the structure is approximately 1,365 square feet. The structure has a 6” concrete turn down foundation walls and a 2’-0” wide concrete steam trench. This building acted as an Interior Ballistic Lab and later as a Weapons System Integration Lab. This building was built in 1949.

f. 1352 (Storage/Test Fixture Assembly Building): Building 1352 is an existing one-story building, on a slab on grade. The building footprint is approximately 150 square feet. This building acted as a RDT&E Storage Facility and Test Fixture Assembly Building. It is a single room building. This building was built in 1975.

c. Working Hours All work is to take place at Naval Support Activity South Potomac (NSASP) Dahlgren, VA for Buildings 370, 370A, 370B, 409, 462 and 1352. Any work done during normal working hours shall be done in a manner with minimal disturbance to the buildings occupants. Normal working hours are defined as Monday – Friday 0700-1600. Any building escorts are to be provided by the end user.

d. Access and Passes

All Contractor employees, including subcontractors, subcontractors’ employees, suppliers, and suppliers’ employees are required to comply with the Installation Security Requirements regarding personnel, vehicle, and equipment security passes and access to the jobsite. Nothing in the contract is to be construed in any way to limit the authority of the Commanding Officer to prescribe new, or to enforce existing security regulations governing the admission or exclusion of persons or personnel and the conduct of persons while aboard the station, including but not limited to, the rights of search of all persons or vehicles aboard the station.

Coordinate with the Contracting Officer for specific security and access requirements.

a. Access to Buildings/Occupied Buildings: The Contractor may work in or around occupied buildings. The Contractor is responsible, via the Contracting Officer, to obtain access to the building and facilities and arrange for them to be opened and closed. Do not enter the building(s) without prior approval of the Contracting Officer. Contract personnel will not be permitted in security-regulated buildings or areas unless cleared by the Security Officer.

In addition, buildings located within operational areas of the station, must be given approval by Range Control and therefore, must work with the Contracting Officers Representative (COR) to arrange for access to these facilities.

b. Passes and Badges: Contractor employees and representatives performing work under this contract are required to be either United States citizens or documented legal residents (status verified by the prime contractor). All Contractor employees must obtain the required contractor employee and vehicle passes. Each employee is required to wear and display the Government issued badge over the front of outer clothing. Failure to obtain security and base access passes must not be a cause for contract performance time extension(s) or delays in performance of the contract. The Contractor is required to immediately turn in all terminated employee’s badges to the issuing office.

Obtain access to Navy installations through participation in the Defense Biometrics Identification System (DBIDS). Requirements for Contractor employee registration, and transition for employees currently under Navy Commercial Access Control System (NCACS), are available at https://www.cnic.navy.mil/om/dbids.html. No fees are associated with obtaining a DBIDS credential. Participation in DBIDS is not mandatory, and Contractor personnel may apply for One-Day Passes at the Base Visitor Control Office to access the installation. Registration for DBIDS includes:

Present a letter or official award document (i.e. DD Form 1155 or SF 1442) from the Contracting Officer that provides personnel the purpose for access to the base Visitor Control Center representative.

Present valid identification, such as a passport or Real ID Act-compliant state driver’s license.

Provide completed SECNAV FORM 5512/1 to the base Visitor Control Center representative to obtain a background check. This form is available for download at https://www.cnic.navy.mil/om/dbids.html.

Upon successful completion of the background check, the

Government will complete the DBIDS enrollment process, which includes Contractor employee photo, finger prints, base restriction and several other assessments.

Upon successful completion of the enrollment process, the Contractor employee will be issued a DBIDS credential, and will be allowed to proceed to the work site.

1.1 Dig Permit Approval

The Contractor is required to obtain a dig permit prior to the start of any construction or demolition related activities on-site. In order to obtain the dig permit, the Contractor must first obtain Miss Utility Ticket for the project site(s), so outside utilities such as, Verizon telephone and Comcast cable can be marked by the service provider. Once the utility ticket is obtained and the service provider has marked the utilities, then the utility ticket is forwarded to the Contracting Officer’s Representative (COR), so that the COR can have base utilities personnel mark all Government Owned utilities. At the conclusion of the utility markings, a dig permit will be issued to the Contractor via the COR. The permit is good for two (2) weeks at a time and will be re-issued by the Government; however, once marked, the Contractor is now responsible for up-keeping the utility makings throughout the contract duration.

1.2 Hot Work Permit

Prior to performing any “Hot Work” (e.g. welding, cutting or torching) or operating other flame-producing/spark-producing devices, request a written permit from the Fire Division.

CONTRACTORS ARE REQUIRED TO MEET ALL CRITERIA BEFORE A PERMIT IS

ISSUED. It is mandatory to have a designated FIRE WATCH for any “Hot Work” done on this activity. The Fire Watch shall be trained in accordance with NFPA 51B and remain on-site as required after completion of the task or as specified on the hot work permit.

2. APPLICABLE CODES AND STANDARDS:

The design and construction shall be in accordance with the latest revision/edition of the following referenced codes and standards. The term "Latest Revision/Edition" is defined as the version as of the project award date.

1. International Mechanical Code (IMC)

2. International Building Code (IBC)

3. National Electrical Code (NEC)

4. International Plumbing Code (IPC)

5. Unified Facilities Guide Specifications (UFGS)

6. Unified Facilities Criteria (UFC)

7. ASHREA Standards

8. US Army Corps of Engineers Safety and Health Requirements Manual EM 385

3. Site Demolition Work:

a. Existing building utility connections, including water, power and communications shall be removed from the building/tower back to the nearest supplying manholes or transformers and water/sanitary sewer lines removed back to main lines and suitably plugged or capped at the removal limits.

b. Utility demolition and removal must be coordinated with on-site personnel for planned outages. Contractor personnel shall allow at least two weeks for outage request approvals prior to performing the work.

c. Existing sidewalks, pavements and other associated features will be completely removed. On the site visit, the Customer has decided to keep all existing pavement around the site to remain in-place.

d. Contractor shall install and maintain sediment and erosion control measures, such as, silt fence and storm water inlet protection prior to the start of site demolition work.

4. Building/Structure Demolition Work:

1. Demolish the structures to include the tower truss, porches, stairs and landings, walls, slab, footings and foundation.

2. Structures shall be demolished in a systematic manner, from the top of the structure to the ground.

Mechanical Work:

1. Remove all mechanical, plumbing, and fire protection systems and equipment completely, including but not limited to: air compressor units, exhaust fans, unit heaters, pumps, water heaters, air handling equipment, sprinkler system components, ductwork and diffusers, mechanical and plumbing piping, valves, control components, panels and wiring. Remove any existing, external, above-ground piping routing to facility and support structures.

2. Remove air conditioning, refrigeration, and other equipment containing refrigerants without releasing chlorofluorocarbon refrigerants to the atmosphere in accordance with the Clean Air Act Amendment of 1990. Recover all refrigerants prior to removing any air conditioning, refrigeration, and other equipment containing refrigerants and dispose of in accordance with Class I and Class II ODS as defined in Section 602 (a) and (b) of the Clean Air Act. Place recovered ODS in cylinders meeting AHRI Guidelines K suitable for type ODS (filled to no more than 80% capacity)and provide appropriate labeling and turn into the Navy as directed by the Contracting Officer.

Electrical Work:

1. Remove all electrical systems and equipment completely, including but not limited to:

lighting, receptacles, disconnects, electrical wiring and conduit.

5. CONTRACTOR CLEANUP:

Contractor shall be responsible for and not limited to:

a. Providing necessary safety to protect any adjacent existing buildings, landscape ad associated features.

b. Cleaning up debris on project site at the end of each working day.

c. Properly dispose of removed materials and debris at completion of project.

d. Disposal of demolished material and equipment.

6. SITE RESTORATION:

Contractor shall be responsible for and not limited to:

a. After completion of the demolition, all disturbed areas shall be re-graded to restore natural drainage patterns and returned to open turf cover with topsoil or clean fill and seeding. The demolition site shall be compacted, graded and free from protrusions, demolition debris and abrupt edges.

b. Once seed is established and approval is given by the Environmental Department Representative, Contractor shall remove sediment and erosion control devices.

7. OTHER PROJECT REQUIREMENTS:

General Hazardous Component Abatement:

Reports, performed in 1990, identify that ACM are not present in the facility. A report for each of the following: asbestos, lead based paint, mercury, and PCBs will need to be performed to support this project. The General Contractor is required to hire, as a first tier subcontractor, a PQP to ensure compliance with the approved work plans and perform independent inspections, testing and verification of the hazardous components work including: asbestos, lead containing paint, mercury containing equipment, LLR components, PCBs, animal droppings, molds and spores.

During the site visit, it was discovered that asbestos tiles (9” x 9”) were discovered in Building 370, under the existing 12” x 12” VCT tiles. The 9” x 9” tiles also contain asbestos mastic/glue to adhere the tiles to the concrete floor. It was also noted that Building 370A (Boiler Room) has a below-grade fuel oil tank (500 Gallon) that needs to emptied, cleaned, removed and transported off-site. Additionally, the steam pipes both underground in the steam trench and aboveground going from Building 370A to Building 1352 could possibility have asbestos containing materials.

General Explosive Contamination Abatement:

Structures, in which explosive materials have been managed and/or stored, may contain explosive residues hidden within cracks, crevices, under flooring, in ventilation ducts, behind wall panels, etc. Friction or impact from dismantling the structural components can present a potential detonation hazard that must be evaluated and addressed prior to dismantling/demolition operations. The decommissioning and demolition of an explosives-contaminated structure may present unobvious hazards requiring application of specialized knowledge and expertise as well as implementation of established regulatory safety programs. Consequently, the decommissioning and demolition of structures should be preceded by a comprehensive planning process and be conducted in accordance with both established and project-specific safety procedures. This process shall include a Safety and Environmental Hazard Review and Site Inspection, Work Plan Development, Obtain Permits, Gain Approval, Implementation of Work Plan, Test Debris and Soil for Reactivity/Toxicity. Activities involving ammunition and explosives or their constituents or chemical warfare agents have additional requirements as specified in EM 385-1-97, Explosives Safety and Health Requirements Manual. If tests show no reactivity/toxicity in debris and soil, then maintain a complete written project report. Properly dispose of non-hazardous non-combustible materials. If tests show reactivity/toxicity in debris and soil, dispose of materials in accordance with applicable Hazardous Waste Regulations.

Structures Containing Blasting Agents: Decontamination of structures that have contained blasting agents composed of high percentages of water soluble, hygroscopic salts such as ammonium nitrate and fuels may be achieved by sweeping or other physical means. Water wash down usually results in the safe decontamination of this building category. In certain cases, collecting and treating the wash down water may be required.

Open burning is not recommended for this explosives contaminated building category.

Structures Containing Black Powder and Pyrotechnic Mixtures: Decontamination of black powder and similar pyrotechnic mixtures may also be achieved by mechanical cleaning followed by water wash down. However, due to the ease of ignition after drying, burning is recommended for this building category.

Structures Containing Other Explosive Chemicals and Compounds: Water insoluble molecular explosives such as nitroglycerin, tetryl, TNT, PETN, RDX, and HMX require special decontamination and dismantling procedures. These procedures may include sweeping and physical removal followed by steam cleaning of equipment and the use of solvents, such as acetone, or a desensitizing oil prior to the removal of threaded fittings.

Trinitroresorcinol, lead styphnate, lead azide, mercury fulminate and other initiating explosives are quite sensitive to initiation by heat, impact and friction. These materials present the supplemental problem of residual metal contamination after the criteria of reactivity is eliminated. Structures that have contained these two groups of explosives require soil monitoring to assure complete, safe closure of the site. Bioremediation or ash and soil removal may be required. It is highly recommended that buildings used to manufacture or process any of these two groups of explosives be burned to eliminate possible hazards associated with reactive materials that may have accumulated in cracks, crevices or larger spaces within the floors and walls.

Unexploded Ordinance (UXO)/Munitions & Explosives of Concern (MEC) Monitoring & Clearance:

The project sites are located within the Range limits of NSA South Potomac Dahlgren and therefore, require UXO/MEC monitoring and clearance. The approved work plan and DB specifications will need to indicate the area to be monitored and include the pertinent conditions and constraints that will be imposed on the Construction Contractor. The project locations will require all of the site clearance and/or excavation work to be monitored by a qualified/certified UXO Technician and/or coordinated with a Government provided MEC Contractor via the NAVFAC KO.

8. Required Contractor Submittals:

a. Demolition Plan: Prepare a Demolition Plan and submit proposed demolition, and removal procedures for approval before work is started. Include in the plan procedures for careful removal, separation and disposition of materials specified to be salvaged, coordination with other work in progress, a disconnection schedule of utility services, a detailed description of methods and equipment to be used for each operation and of the sequence of operations.

REQUEST DEMO PACKAGE Eprojects #: 1669066

GENERAL NOTES:

1. Job site and field conditions shall be verified prior to beginning work. Plans herein are schematic in nature. The layout is based on the best available information. Existing conditions and field conditions shall be verified by the contractor.

2. Assume that all electrical wires to be capped and or removed are located underground.

3. ALL utilities and associated equipment are to be removed and sealed/capped.

4. Unless otherwise noted foundations and pavements are to be completely removed.

5. Buildings/Structures have been clearly listed and identified in documents. Any additional buildings shown in maps are for reference only.

BUILDING/STRUCTURE DETAILS For BUILDINGS 370, 370A, 370B, 409, 462 & 1352

Buildings 370, 370A, 370B, 409, 462 and 1352:

Building 370 (Rocket Laboratory):

CURRENT CONDITIONS

Building 370 is an existing one-story building, with an attic, on a slab on grade. The building footprint is approximately 2,200 square feet. This building acted as an explosive research facility. It houses multiple storage rooms and two toilet rooms. This building was built in 1944 as a rocket laboratory. There was an addition and renovation done to the building in 1991.

Substructure General:

1. The substructure consists of reinforced concrete spread footings and reinforced concrete grade beams, concrete foundation walls, and concrete masonry foundation walls.

Localized areas have firing pits that contain 3’-0” deep concrete emplacements.

Superstructure General:

1. The exterior walls primarily consist of 2x6 wood studs, at 16”o.c. with ½” exposed aggregate panels. The framing of this structure, for the most part, utilizes dimensional lumber. Some areas, including the firing pit areas, contain concrete walls. These concrete walls vary between 8” and 12” thick concrete.

2. The roof framing consists of both wood roof trusses in most areas and ceiling joists and rafters in other places. In addition, a 6” concrete roof slab is also utilized in the firing pit areas. Where roof trusses are utilized, they span from exterior wall to exterior wall.

Where ceiling joists and rafters are utilized, they span from exterior load bearing walls to interior load bearing walls. Wide flange steel beams and columns are utilized to support roof loads.

3. This structure shall be demolished in a systematic manner, from the top of the structure to the ground.

Interior General:

1. The interior construction and finishes at Building 370 reflects wood stud, gypsum board partitions, painted finishes, some concrete partitions, and gypsum board ceilings. Floor finishes include vinyl composition tile and exposed concrete.

Mechanical General:

1. Mechanical equipment includes but is not limited to: air compressor units, unit heaters, pumps, water heaters, air handling equipment, sprinkler system components, ductwork and diffusers, mechanical piping, plumbing piping, valves, control components, panels, and wiring.

Electrical General:

1. Electrical systems and equipment includes but is not limited to: pad-mounted transformers, switchboards, motor control centers, transfer switches, panel boards, transformers, lighting, receptacles, disconnects, electrical wiring and conduit, telecommunications devices, wiring, and backbone, security devices, wiring, and fire alarm panels, devices and wiring.

ADDITIONAL DETAILS:

The work to be performed includes but is not limited to:

1. Prior to any demolition activities the contractor shall install approximately 100 linear feet of construction and silt fence around each demolition site.

2. Assume that demolition includes the removal of at least 20 square yards of concrete pavement.

3. Assume that demolition includes the removal of at least 100 square yards of bituminous pavement.

Figure 1 ‐ Structure 370 (Rocket Laboratory)

Figure 2‐ Building 370 (Rocket Laboratory) Map View

Building 370A (Magazine)

CURRENT CONDITIONS

Building 370A is an existing one-story building, on a slab on grade. The building footprint is approximately 175 square feet. This building acted as a magazine for the explosive research facility. It is a single room building. This building was built in 1944.

Substructure General:

1. The substructure consists of reinforced concrete spread footings and concrete masonry foundation walls with a 6” slab on grade.

Superstructure General:

1. The exterior walls primarily consist of 8” concrete masonry units covered in stucco.

2. The roof framing consists of 2x6 wood ceiling joists and rafters.

Interior General:

1. The interior construction and finishes at Building 370A reflects concrete masonry unit partitions, and gypsum board ceilings. Floor finishes include exposed concrete.

Mechanical General:

1. Mechanical equipment includes but is not limited to: Exhaust Fans, unit heaters and wiring.

Electrical General:

1. Electrical systems and equipment includes but is not limited to: lighting, receptacles, disconnects, electrical wiring and conduit.

1. Prior to any demolition activities the contractor shall install approximately 70 linear feet of construction and silt fence around each demolition site.

2. 2. Assume that demolition includes the removal of at least 2 square yards of concrete pavement.

Figure 3 ‐ Building 370B (Boiler House)

Figure 4 ‐ Building 370B (Boiler House) Map View

Building 370B (Boiler House)

CURRENT CONDITIONS:

Building 370B is an existing one- story building, on a slab on grade. The building footprint is approximately 150 square feet. The building acted as a boiler house for the explosive research facility. The building was built in 1944.

Substructure General:

1. The substructure consists of reinforced concrete spread footings and concrete masonry foundation walls with a 6” slab on grade.

Superstructure General:

1. The exterior walls primarily consist of 8” concrete masonry units covered in stucco.

2. The roof framing consists of 2x6 wood ceiling joists and rafters.

Interior General:

1. The interior construction and finishes at Building 370A reflects concrete masonry unit partitions, and gypsum board ceilings. Floor finishes include exposed concrete.

Mechanical General:

1. Mechanical equipment includes but is not limited to: Exhaust Fans, unit heaters and wiring.

Electrical General:

1. Prior to any demolition activities the contractor shall install approximately 70 linear feet of construction and silt fence around each demolition site.

Building 409 (Magazine/Weighing Room)

Building 409 is an existing one-story structure comprised of two Quonset hut-like structures partially built into grade with a 6” concrete slab. The footprints of the two structures are approximately 195 square feet and 130 square feet. The structures have a concrete retaining wall at their faces and extending out perpendicular from the faces. This building acted as a magazine and weighing room for the explosive research facility. This building was built in 1948.

1. The substructure consists of reinforced concrete, 1’-6” wide by 2’-6” (minimum) turn-down footings with a 8” thick by 2’-0” (abv. slab and grade) concrete foundation walls with a 6” slab on grade.

2. The two structures have 8” reinforced concrete retaining walls.

Superstructure General:

1. These structures consist of “Armco Multi-plate Ready Magazines” ( Model # MP10B2)

2. These structures shall be demolished in a systematic manner, from the top of the structure to the ground.

Interior General:

1. Floor finishes include a ¾” spark proof topping on concrete slab on grounded copper mesh.

Mechanical General:

1. Mechanical systems and equipment include but is not limited to: Exhaust Fans, unit heaters and wiring.

Electrical General:

1. Prior to any demolition activities the contractor shall install approximately 150 linear feet of construction and silt fence around each demolition site.

2. Assume that demolition includes the removal of at least 50 square yards of concrete

Figure 5 ‐ Building 409 (Magazine/Weighing Room)

Figure 6 ‐Building 409 (Magazine/Weighing Room) Map View

Building 462 (Systems Integration Lab)

Building 462 is an existing one-story structure comprised of a Quonset hut-like structure with a 6” concrete slab. The footprint of the structure is approximately 1,365 square feet. The structure has a 6” concrete turn down foundation walls and a 2’-0” wide concrete steam trench. This building acted as an Interior Ballistic Lab and later as a Weapons System Integration Lab. This building was built in 1949.

1. The substructure consists of reinforced concrete, 6” wide by 2’-6” (minimum) turn-down footings with a 6” slab on grade.

2. The structure contains a 2’-0” wide concrete steam trench.

3. The structure contains (4) 9”x1’-8”x1’-2” high concrete piers that held high pressure equipment.

Superstructure General:

1. These structures consist of corrugated metal, with 1” insulation and Masonite with an approximate 10’ radius

2. These structures shall be demolished in a systematic manner, from the top of the structure to the ground.

Interior General:

1. Floor finishes include a linoleum tile deck on concrete slab.

Mechanical General:

1. Mechanical systems and equipment include but is not limited to: Exhaust Fans, unit heaters and wiring.

Electrical General:

1. Prior to any demolition activities the contractor shall install approximately 200 linear

2. Assume that demolition includes the removal of at least 20 square yards of concrete

Figure 7‐ Building 462 (Systems Integration Lab)

Figure 8‐ Building 462 (Systems Integration Lab) Map View

Building 1352 (Storage/ Test Fixture Assembly Building)

Building 1352 is an existing one-story building, on a slab on grade. The building footprint is approximately 150 square feet. This building acted as a RDT&E Storage Facility and Test Fixture Assembly Building. It is a single room building. This building was built in 1975.

1. The substructure consists of reinforced concrete spread footings and concrete masonry foundation walls with a 6” slab on grade.

Superstructure General:

1. The exterior walls primarily consists of 8” concrete masonry units covered in stucco.

2. The roof is flat and the framing consists of 2x6 wood ceiling rafters.

Interior General:

1. The interior construction and finishes reflects concrete masonry unit partitions. Floor finished include exposed concrete.

Mechanical General:

1. Mechanical systems and equipment include but is not limited to: Exhaust Fans, unit heaters and wiring.

Electrical General:

1. Prior to any demolition activities the contractor shall install approximately 200 linear

Figure 9 ‐ Building 1352 (Storage/ Test Fixture Assembly Building)

Figure 10 ‐ Building 1352 (Storage/ Test Fixture Assembly Building) Map View

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WELSH ROAD

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AVENUE B

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BAGEY ROAD

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1ST STREET

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GAMBO ROAD

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FUZING HOUSE ROAD

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TURKEY TROT ROAD

THOMPSON ROAD

MAGAZINE ROAD

MONTANA LOOP

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3RD STREET

SMALL CALIBER DRIVE

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AVENUE C

JARRETT'S PLACE

RUNWAY ROAD

RAMP ROAD

WA

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JENKINS ROAD

SHELL LANE

THOMPSON ROAD

Sources: Esri, HERE, DeLorme, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), MapmyIndia, NGCC, © OpenStreetMap contributors, and the GIS User Community

This map is for reference only. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the database may be reflected on this map.The USN & NAVFAC shall not be liable for any errors, ommisions, or damage that results from inappropriate use of this document.

This material is For Official Use Only. Unauthorized reproduction, distribution, publication, or exhibition of this material is STRICTLY PROHIBITED.

Destroy as "For Official Use Only".

FOR OFFICIAL USE ONLY

Grid: State Plane (Feet), Geographic (Lat/Long) Coordinate System:

State Plane Maryland 1900 Datum: NAD 1983 Map Units: Feet

500 0 500 1,000250 Feet

Naval Support Facility Dahlgren

Legend

G Site Access Gate Building Other Structure Canopy / Pavilion Slab / Loading Dock Open Storage

D D Fence Wall Railroad Centerline Sidewalk Bridge Paved Road Unpaved Road Airfield Pavement Mooring Area Recreation Area Swimming Playground Stream / Creek Lake / Pond Installation

Naval Facilities Engineering Command NAVFAC Washington GeoReadiness Center

(301) 995-3697 Map Publication Date: October 10, 2017

100 0 100 20050 Meters naomi.james-snead Callout Bldg 312 naomi.james-snead Callout Structure 360 naomi.james-snead Callout Buildings 370, 307A, 370B, 1352 naomi.james-snead Callout Building 409 naomi.james-snead Callout Building 462

This Floor Plan is for reference only.

Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the database may be reflected on this floor plan. The

USN & NAVFAC shall not be liable for any errors, ommissions or damage that results from inappropriate use of this document.

This material is For Official Use Only.

Unauthorized reproduction, distribution, publication, or exhibition of this material is STRICTLY

PROHIBITED. Destroy as "For

Official Use Only"

FOR OFFICIAL USE ONLY

Naval District Washington

Drawing Creation Date:

May 2018

NFA100000595965

ORDNANCE BUILDING

Building 312

First Floor

Naval Support Activity

South Potomac

Dahlgren

AutoCAD SHX Text N

AutoCAD SHX Text S

AutoCAD SHX Text W

AutoCAD SHX Text E

AutoCAD SHX Text

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AutoCAD SHX Text

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FEET

AutoCAD SHX Text

AutoCAD SHX Text 221.26

AutoCAD SHX Text 42132

AutoCAD SHX Text

AutoCAD SHX Text 149.06

AutoCAD SHX Text 42132

AutoCAD SHX Text

AutoCAD SHX Text 377.15

AutoCAD SHX Text 42132

AutoCAD SHX Text

ACTION/REMARKS

AutoCAD SHX Text

SUBMISSIONS/REVISIONS

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DATE

AutoCAD SHX Text

NO.

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AutoCAD SHX Text Net Sq Feet

N

S

W

E

0 10 20

FEET

NFA100000595830

N00178 82109

115.00

A93

137.0000

161.0000

This Floor Plan is for reference only.

Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the database may be reflected on this floor plan. The USN & NAVFAC shall not be liable for any errors, ommissions or damage that results from inappropriate use of this document.

This material is For Official Use Only.

Unauthorized reproduction, distribution, publication, or exhibition of this material is STRICTLY

PROHIBITED. Destroy as "For Official Use Only"FOR OFFICIAL USE ONLY

ACTION/REMARKS

SUBMISSIONS/REVISIONS

DATENO.

Identified With:

Each Space

Naval District Washington

Drawing Creation Date:

April 2013

NFA100000595830

BOILER HOUSE

Building 370B First Floor

Naval Support Activity South Potomac

Dahlgren

Space Description Room Number

Category Code Net Sq Feet

REQUEST DEMO PACKAGE eProjects #: 1669066

SECTION 02 41 00

DEMOLITION

05/10

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AIR-CONDITIONING, HEATING AND REFRIGERATION INSTITUTE (AHRI)

AHRI Guideline K (2009) Guideline for Containers for Recovered Non-Flammable Fluorocarbon Refrigerants

AMERICAN SOCIETY OF SAFETY PROFESSIONALS (ASSP)

ASSP A10.6 (2006) Safety & Health Program Requirements for Demolition Operations - American National Standard for Construction and Demolition Operations

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

40 CFR 61 National Emission Standards for Hazardous Air Pollutants

40 CFR 82 Protection of Stratospheric Ozone

1.2 PROJECT DESCRIPTION

1.2.1 Definitions

1.2.1.1 Demolition

Demolition is the process of wrecking or taking out any load-supporting structural member of a facility together with any related handling and disposal operations.

1.2.1.2 Demolition Plan

Demolition Plan is the planned steps and processes for managing demolition activities and identifying the required sequencing activities and disposal mechanisms.

1.2.2 Demolition/Deconstruction Plan

Prepare a Demolition Plan and submit proposed demolition, and removal

SECTION 02 41 00 Page 1 procedures for approval before work is started. Include in the plan procedures for careful removal and disposition of materials specified to be salvaged, coordination with other work in progress, a disconnection schedule of utility services, a detailed description of methods and equipment to be used for each operation and of the sequence of operations.

Identify components and materials to be salvaged for reuse or recycling with reference to paragraph Existing Facilities to be Removed. Append tracking forms for all removed materials indicating type, quantities, condition, destination, and end use. Coordinate with Waste Management Plan in accordance with Section 01 74 19 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL. Provide procedures for safe conduct of the work in accordance with EM 385-1-1. Plan shall be approved by Contracting Officer prior to work beginning.

1.2.3 General Requirements

Do not begin demolition until authorization is received from the Contracting Officer. The work of this section is to be performed in a manner that maximizes the value derived from the salvage and recycling of materials. Remove rubbish and debris from Government property daily, unless otherwise directed. Store materials that cannot be removed daily in areas specified by the Contracting Officer. In the interest of occupational safety and health, perform the work in accordance with EM 385-1-1, Section 23, Demolition, and other applicable Sections.

1.3 ITEMS TO REMAIN IN PLACE

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government. Repair or replace damaged items as approved by the Contracting Officer.

Coordinate the work of this section with all other work indicated.

Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Increase structural supports or add new supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract. Do not overload structural elements. Provide new supports and reinforcement for existing construction weakened by demolition, deconstruction, or removal work. Repairs, reinforcement, or structural replacement require approval by the Contracting Officer prior to performing such work.

1.3.1 Existing Construction Limits and Protection

Do not disturb existing construction beyond the extent indicated or necessary for installation of new construction. Provide temporary shoring and bracing for support of building components to prevent settlement or other movement. Provide protective measures to control accumulation and migration of dust and dirt in all work areas. Remove dust, dirt, and debris from work areas daily.

1.3.2 Trees

Protect trees within the project site which might be damaged during demolition or deconstruction, and which are indicated to be left in place, by a 6 foot high fence. Erect and secure fence a minimum of 5 feet from the trunk of individual trees or follow the outer perimeter of branches or clumps of trees. Replace any tree designated to remain that is damaged during the work under this contract with like-kind or as approved by the Contracting Officer.

SECTION 02 41 00 Page 2

1.3.3 Utility Service

Maintain existing utilities indicated to stay in service and protect against damage during demolition and deconstruction operations. Prior to start of work, utilities serving each area of alteration or removal will be shut off by the Government and disconnected and sealed by the Contractor.

1.3.4 Facilities

Protect electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities. Floors, roofs, walls, columns, pilasters, and other structural components that are designed and constructed to stand without lateral support or shoring, and are determined to be in stable condition, must remain standing without additional bracing, shoring, or lateral support until demolished or deconstructed, unless directed otherwise by the Contracting Officer. Ensure that no elements determined to be unstable are left unsupported and place and secure bracing, shoring, or lateral supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract.

1.4 BURNING

The use of burning at the project site for the disposal of refuse and debris will not be permitted.

1.5 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Demolition Plan; G

Existing Conditions

SD-07 Certificates

Notification; G

SD-11 Closeout Submittals

Receipts

1.6 QUALITY ASSURANCE

Submit timely notification of demolition projects to Federal, State, regional, and local authorities in accordance with 40 CFR 61, Subpart M.

Notify the Contracting Officer in writing 10 working days prior to the commencement of work in accordance with 40 CFR 61, Subpart M. Comply with federal, state, and local hauling and disposal regulations. In addition to the requirements of the "Contract Clauses," conform to the safety requirements contained in ASSP A10.6. Comply with the Environmental

SECTION 02 41 00 Page 3

Protection Agency requirements specified. Use of explosives will not be permitted.

1.6.1 Dust and Debris Control

Prevent the spread of dust and debris and avoid the creation of a nuisance in the surrounding area. Do not use water if it results in hazardous or objectionable conditions such as, but not limited to, ice, flooding, or pollution. Sweep pavements as often as necessary to control the spread of debris that may result in foreign object damage potential to aircraft.

1.7 PROTECTION

1.7.1 Traffic Control Signs

a. Where safety is endangered in the area of removal work, use traffic barricades with flashing lights. Notify the Contracting Officer prior to beginning such work.

1.7.2 Protection of Personnel

Before, during and after the demolition work continuously evaluate the condition of the structure being demolished and take immediate action to protect all personnel working in and around the project site. No area, section, or component of floors, roofs, walls, columns, pilasters, or other structural element will be allowed to be left standing without sufficient bracing, shoring, or lateral support to prevent collapse or failure while workmen remove debris or perform other work in the immediate area.

1.8 FOREIGN OBJECT DAMAGE (FOD)

Aircraft and aircraft engines are subject to FOD from debris and waste material lying on airfield pavements. Remove all such materials that may appear on operational aircraft pavements due to the Contractor's operations. If necessary, the Contracting Officer may require the Contractor to install a temporary barricade at the Contractor's expense to control the spread of FOD potential debris. The barricade shall include a fence covered with a fabric designed to stop the spread of debris. Anchor the fence and fabric to prevent displacement by winds or jet/prop blasts.

Remove barricade when no longer required.

1.9 EXISTING CONDITIONS

Before beginning any demolition work, survey the site and examine the drawings and specifications to determine the extent of the work. Record existing conditions in the presence of the Contracting Officer showing the condition of structures and other facilities adjacent to areas of alteration or removal. Photographs sized 4 inch will be acceptable as a record of existing conditions. Include in the record the elevation of the top of foundation walls, finish floor elevations, possible conflicting electrical conduits, plumbing lines, alarms systems, the location and extent of existing cracks and other damage and description of surface conditions that exist prior to before starting work. It is the Contractor's responsibility to verify and document all required outages which will be required during the course of work, and to note these outages on the record document. Submit survey results.

SECTION 02 41 00 Page 4

PART 2 PRODUCTS

2.1 FILL MATERIAL

a. Comply with excavating, backfilling, and compacting procedures for soils used as backfill material to fill basements, voids, depressions or excavations resulting from demolition or deconstruction of structures. Fill material shall be waste products from demolition or deconstruction until all waste appropriate for this purpose is consumed.

PART 3 EXECUTION

3.1 EXISTING FACILITIES TO BE REMOVED

Inspect and evaluate existing structures onsite for reuse. Existing construction scheduled to be removed for reuse shall be disassembled.

Dismantled and removed materials are to be separated, set aside, and prepared as specified, and stored or delivered to a collection point for reuse, remanufacture, recycling, or other disposal, as specified.

Materials shall be designated for reuse onsite whenever possible.

3.1.1 Structures

a. Remove existing structures indicated to be removed to 3 feet below grade. Interior walls, other than retaining walls and partitions, shall be removed to 3 feet below grade. Break up basement slabs to permit drainage. Remove sidewalks, curbs, gutters and street light bases as indicated.

b. Demolish structures in a systematic manner from the top of the structure to the ground. Complete demolition work above each tier or floor before the supporting members on the lower level are disturbed.

Demolish concrete and masonry walls in small sections. Remove structural framing members and lower to ground by means of derricks, platforms hoists, or other suitable methods as approved by the Contracting Officer.

c. Locate demolition and deconstruction equipment throughout the structure and remove materials so as to not impose excessive loads to supporting walls, floors, or framing.

3.1.2 Utilities and Related Equipment

3.1.2.1 General Requirements

Do not interrupt existing utilities serving occupied or used facilities, except when authorized in writing by the Contracting Officer. Do not interrupt existing utilities serving facilities occupied and used by the Government except when approved in writing and then only after temporary utility services have been approved and provided. Do not begin demolition or deconstruction work until all utility disconnections have been made.

Shut off and cap utilities for future use, as indicated.

3.1.2.2 Disconnecting Existing Utilities

Remove existing utilities, as indicated and terminate in a manner conforming to the nationally recognized code covering the specific utility and approved by the Contracting Officer. When utility lines are

SECTION 02 41 00 Page 5 encountered but are not indicated on the drawings, notify the Contracting Officer prior to further work in that area. Remove meters and related equipment and deliver to a location in accordance with instructions of the Contracting Officer.

3.1.3 Chain Link Fencing

Remove chain link fencing, gates and other related salvaged items scheduled for removal and transport to designated areas. Remove gates as whole units. Cut chain link fabric to 25 foot lengths and store in rolls off the ground.

3.1.4 Paving and Slabs

Remove concrete and asphaltic concrete paving and slabs including aggregate base as indicated completely. Pavement and slabs designated to be recycled and utilized in this project shall be moved, ground and stored as directed by the Contracting Officer. Pavement and slabs not to be used in this project shall be removed from the Installation at Contractor's expense.

3.1.5 Masonry

Sawcut and remove masonry so as to prevent damage to surfaces to remain, to removed materials being salvaged and to facilitate the installation of new work. Where new masonry adjoins existing, the new work shall abut or tie into the existing construction as indicated specified for the new work.

Provide square, straight edges and corners where existing masonry adjoins new work and other locations. Masonry removed in whole blocks shall be salvaged and stored for reuse. Masonry removed in pieces shall be crushed for use as aggregate.

3.1.6 Concrete

Saw concrete along straight lines to a depth of a minimum 2 inch. Make each cut in walls perpendicular to the face and in alignment with the cut in the opposite face. Break out the remainder of the concrete provided that the broken area is concealed in the finished work, and the remaining concrete is sound. At locations where the broken face cannot be concealed, grind smooth or saw cut entirely through the concrete.

3.1.7 Structural Steel

Dismantle structural steel at field connections and in a manner that will prevent bending or damage. Salvage for recycle structural steel, steel joists, girders, angles, plates, columns and shapes. Flame-cutting torches are permitted when other methods of dismantling are not practical.

Transport steel joists and girders as whole units and not dismantled.

Transport structural steel shapes to a designated area as directed by the Contracting Officer, stacked according to size, type…