RVKQ 25-0012– Repair MAU Access Platforms B907

STATEMENT OF WORK

11 March 2026

1. SUMMARY OF WORK: The Contractor shall furnish and install all material, equipment, components, parts, tools, labor, transportation, hauling, disposal/recycling, cleaning, inspection, testing, commissioning, training, reporting, etc., necessary to perform this project as described in the contract-delivery order, including this Statement of Work and any / all applicable federal, state and local laws, regulations, and standards. Unless otherwise stated, any / all requirement for contractors to remove and properly dispose of / recycle off base, and to furnish and install / incorporate any / all new materials / equipment / components needed to properly complete the work item; any Government furnished property and / or reinstallation of existing materials / equipment / components shall be as stated / specified herein.

Contractors shall submit materials / methods for approval prior to ordering and / or incorporation into the work; at a minimum, submittals shall include product literature, SDS, standard color, texture and style samples / swatches / boards, and place of origin / manufacture. Demolished materials, waste / debris is property of the contractor, unless otherwise stated herein; contractor is responsible for proper disposal / recycling of such materials off base; such materials shall be promptly removed from the installation and shall not be stored / stockpiled unless submitted and approved for such. Contractor is responsible for verification of all details, measurements, etc., prior to ordering materials and execution of work.

2. Repair two existing Make-Up Air Unit (MAU) platforms in hangar B907 to allow access for MAU maintenance. The repair consists of a fixed ladder design that incorporates a vertical rail system with fall protection. The fixed ladder begins at the approximate height of 26.25ft above Hangar deck. This is the transitional platform and is accessed by a manned vertical boom lift. The fixed ladder vertical rail system is bolted to a subassembly structure that includes a step on platform attached via bolting or welding to the existing working platform structure above. This platform is accessed on its underside using a roof hatch design further detailed in the design portion of this statement of work (SOW).

3. Selectively demolish, remove, and properly dispose of removed materials in the existing portion of the platforms per design. Note: the underside of existing platform deck is ~32.25ft above hangar deck. (working platform)

914 MSG / CEC

Niagara Falls Air Reserve Station 2405 Franklin Drive Niagara Falls, New York 14304-5063

4. Provide all materials/tools necessary to build subassembly structure, including Professional Engineer (PE) certified design submittal.

4.1. If welding/hot work is performed, obtain a hot work permit for each day required.

4.2. If welding/hot work is performed, prevent emissions from migrating into occupied government areas by controlling MAU/intake pathways, isolating affected zones or scheduling work during low/no occupancy. Where structurally feasible and design allows, environmental recommends the use of non-fume-generating fastening methods in lieu of welding.

5. Safety and design are to conform with OSHA 1910.23, 1926 subpart L, 1915.73, 1926.453 and 1926.502 standards

6. Structural steel assembled per PE certified design submittal creating each platform substructure. These attach to underside of modified existing MAU platforms where the ladder and vertical rail system assembly is bolted too.

6.1. Finish: Substructure is cleaned, primed and painted to match existing platform appearance. Ladder and rail system are painted yellow for high visibility.

7. Install roof hatch per design. The roof hatch is placed in the selected demolished section of the existing platforms.

8. Provide and install all necessary ancillary components such as, but not limited to, fall protection safety anchors or modify other components as needed to facilitate a complete and proper installation according to OSHA requirements.

9. All structural components of this build must not impede the existing fire suppression, guide wires or any other equipment in its path. The boom lift must be able to articulate into position to allow a person to step onto substructure platform, tie off, and connect to vertical fall prevention rail.

10. Upon completion of the installation, perform operational testing, adjusting, and review of safety requirements

11. Provide an operation and maintenance training session with Base staff at system turn over.

Submit copies of all drawings, operation and maintenance manuals, warranties, and list of spare parts.

12. Design:

12.1. A fixed ladder with vertical rail and fall protection system, bolted to a substructure (assembled structural steel) and attached under an existing 6x12 foot steel platform. This platform is modified by cutting an opening to install a hatch access and entering platform from below.

12.2. The design is to conform to OSHA 1910.23, 1926 subpart L, 1915.73, 1926.453 and 1926.502 standards.

12.3. The substructure includes a small step-on platform with .25-inch-thick grid decking and .25-inch-thick deck supports. Material types and structural steel construction methods described in certified print. The size of platform should conform to OSHA safety standards in this design.

12.4. Utilizing a manned boom lift allows ascent from a starting point of ~26.25ft (32.25ft. – 6)

12.5. The ladder is 6 feet to the underside of MAU platforms with an extension remaining 42 inches above the deck. (6ft + 42in= 9.5ft)

12.6. This is a conceptual design framework. A qualified professional engineer must perform the final structural design, calculations, and approval to ensure the entire assembly is safe and compliant with all relevant federal, state, and local standards.

12.7. Engage an engineering professional to create detailed drawings for fabrication.

(see below design guide)

A. Starting Transitional Platform at ~26.25ft Elevation accessed by Boom Lift

• ~32.25ft Elevation is the existing working platform.

• ~26.26ft transitional platform serves as the starting point for the 6-foot ascent plus

42 inches above working platform. This design and construction are critical for an elevated working surface.

• Platform Dimensions & Guarding:

• Size: To comply with OSHA standards for landing platforms (1910.23(b)(4)), the transitional platform must be at least 24 inches wide and 30 inches long.

• Guardrail System: The platform must be protected by a full guardrail system on all open sides. Per OSHA 1910.29(b), this includes:

• A top rail at 42 inches above the platform's walking surface.

• A mid-rail installed halfway between the top rail and the walking surface.

• A toe board at least 3.5 inches high at the base to prevent tools from falling.

• Materials & Construction:

• Frame: ASTM A36 or A572 Gr. 50 structural steel (e.g., C-channel or angle).

• Decking: Similar to the main platform, a 0.25-inch-thick grid deck is suitable.

• Support: The platform must be independently and robustly supported. It should be attached directly to the primary structural steel of the building or main tower, not to the ladder system itself. Attachment can be via bolted connections or welding, as determined by the engineer.

B. Fixed Ladder Design

The fixed ladder now extends vertically 6 feet from the new transitional starting platform to the underside of the main 6x12 foot working platform. (This length does not include the 42-inch ladder extension above the main walking platform surface Per OSHA 1910.29(b).

• Materials:

• Side Rails: ASTM A36 structural steel angle (e.g., L3x3x1/4).

• Rungs: ASTM A36 solid steel round bar, minimum 3/4-inch diameter, with a slip-resistant surface.

• Construction:

• Total Length: 9.5 feet (9 feet 6 inches) 6 feet is the distance from underside of main working platform descending to transitional platform.

• Rung Spacing: Uniformly spaced at a maximum of 12 inches on center.

• Ladder Width: Minimum 16 inches clear width between side rails.

• Stand-off Distance: Minimum 7 inches of clear space from the rung centerline to any obstruction behind it.

C. Vertical Rail Fall Protection System

The fall protection system is essential for the entire climb; the length is the total including this final 6-foot section.

• System Type: A rigid rail system with a guided-fall protection sleeve remains the appropriate choice.

• Coverage: The rail must run continuously from the 26.25-foot transitional platform to a point that allows the worker to safely step onto the upper working platform at ~32.25ft above hangar deck.

• Anchorage (Critical Point): The primary anchorage for the fall arrest rail system must be on a main structural member of the upper 6x12 foot platform assembly. This anchorage must be engineered to withstand a force of 5,000 pounds, per OSHA 1926.502. The base of the rail will also be secured at the ~26.25ft platform, but the top anchor takes the fall-arrest load.

D. Structural Attachment Options

The attachments for both the ladder and the new platform must be to the primary building/tower structure.

Component Attachment Method

Details

Starting Platform

Bolted or Welded

Attach the platform's support frame directly to main structural columns or beams using engineered clips, plates, and/or welding.

6-Foot Ladder

Bolted (Preferred)

Use heavy-duty steel clips and high-strength A325/A490 bolts to attach the ladder's side rails to the starting platform at the bottom and the main platform's structural frame at the top.

E. Upper Platform Access and Safety (Unchanged)

Features for safely accessing the main 6x12 foot platform

• Ladder Extensions (Grab Bars): The side rails of the 6-foot ladder must extend 42 inches above the decking of the upper platform to provide handholds for a safe transition, as per OSHA 1910.23(d)(2).

• Hatch Access: The opening should be covered by a secure hatch.

• Self-Closing Gate: A self-closing safety gate must be installed around the ladder opening on the upper platform to prevent falls. (if applicable)

13. Environmental Protection

13.1. Collect, containerize and properly dispose of all waste materials generated from the project off base, including but not limited to: metal, paint chips, unused primer and paint, and cleaners.

13.2. Ensure the work area is clean and free of all debris at the end of each workday.

13.3. The Contractor shall be responsible for characterization, storage, describing, packaging, labeling, marking, and placarding of wastes. The Contractor shall characterize the waste as required by the disposal facility. Any analytical results shall be forwarded to 914 MSG/CEV for review and approval. Waste shall not leave the base until approval has been obtained from 914 MSG/CEV. It is anticipated the waste will be characterized as non-hazardous. The Contractor shall manifest, pack, ship and dispose of all waste in compliance with Federal, State and local laws and regulations.

13.4. Comply with Base standards for storage of hazardous materials. Bulk materials and waste must be secured and stored under cover. Maintain supplies on hand to contain and cleanup any spills generated by the Contractor’s activities. Report any spills to the Base Environmental office in accordance with Base’s HAZMAT Plan.

13.5. Contractor is to recycle or divert as much waste as practical.

13.6. Quarterly the Contractor must submit the Waste / Recycle Materials Log for

Contractors with a list of materials disposed of and recycled.

13.7. Green Purchasing: The Contractor shall comply with the Green Purchasing requirements of the contract. Known / possible EPA Comprehensive Procurement Guideline, USDA Biobased, Green Seal Energy Star, etc., items. Recycled materials must be used to fullest extent in accordance with Executive Order 13101. The EPA website, http://www.epa.gov/cpg, can be accessed for further instruction on what is an EPA-designated material.

13.8. The contractor shall immediately contact 914 MSG/CEV and 914 MSG/SGPB prior to disturbance if any asbestos containing materials is suspected.

14. Submittals

14.1. In addition to any submittals required by the contract, provide the following project specific submittals for government review and approval:

http://www.epa.gov/cpg

14.1.1. Work Schedule

14.1.2. Waste Logs

14.1.3. PE certified and stamped structural design. (detailed fabrication drawings): A qualified professional engineer must perform the final structural design, calculations, and approval to ensure the entire assembly is safe and compliant with all relevant federal, state, and local standards.

14.1.4. All submittals required per OSHA 1910.29(b) and 1910.23(b)(4), 1910.23(d)(2), 1915.73, 1926.453 and 1926.502 standards.

14.1.5. Entry Access Request