1673784_Q58DCSRestoration_EXSOW_REV1.pdf

eProjects No: 1673784

Executable Scope Q-58 Data Concentrator Shed Restoration at the Naval Station Norfolk, Virginia

DESIGNED BY:

NAVFAC MID-ATLANTIC

Facilities Engineering and Acquisition Division ROICC Norfolk Norfolk, VA 23511

SUBMITTED BY:

Design Manager : Andrew Butler, P.E.

APPROVED BY:

Design Director: James M. Smith, R.A.

For Commander, NAVFAC MID-ATLANTIC:

Date:

: J .

andrew.d.butler2 Typewritten Text

INCLUDES DESIGN REVISION 1 CHANGES ISSUED 04/17/2026

andrew.d.butler2 Polygon

PWD Norfolk, Facilities Engineering and Acquisition Division Rev. 5.7.10

Executable Scope eProjects Work Order Number: 1673784 Maximo Number: N/A Building: Q-58 Project Title: DCS Restoration Customer: Commander, Navy Instillations Command (CNIC) Scope By: Andrew Butler, P.E.

Date: December 20, 2025, Revised per Design Revision 1: 04/17/2026

General Notes:

The Q-58 Data Concentrator Shed (DCS) is a steel structure used during degaussing range operations. The structure is supported on four steel pipe piles. There are two small bollards and a fender system for small craft berthing.

Contractor Requirements:

1. The general scope of work includes, but is not limited to the restoration of the structural elements of the DCS including steel pile, beam, shell cleaning and recoating, fender replacement, and ladder repair.

2. Where existing structures to remain are damaged due to construction or demolition required by these documents, the Contractor must repair the damaged item(s) with new materials to match the adjacent material, texture and color, at no additional cost to the government.

3. Perform a thorough site visit before preparing a bid for any work on this project. Field verify existing dimensions and conditions given prior to ordering materials or beginning demolition. All existing dimensions indicated are plus/minus (+/-).

4. Observe and maintain facility and compound security requirements as directed by the Contracting Officer. An escort to the remote job site may be required daily. Contractor to coordinate with the activity and the contracting officer.

5. Laydown area must be coordinated with the activity by the Contracting Officer prior to the preconstruction meeting. Contracting Officer will establish the allowable area size.

As this work will be taking place in a remote area of the Chesapeake Bay, surrounded by water, anticipate the use of a barge or similar lay down area to assist with the storage and transfer of materials.

6. The working platform has limited space for mobility and transference of equipment. A caged ladder is the only existing access to the platform. Anticipate the need for hoisting equipment such as a barge supported crane. Coordinate with the Contracting Officer.

7. Provide and install all required materials in accordance with manufacturer’s written instructions and specifications herein.

8. Dispose of all unused and demolished materials to an offsite location. For bidding purposes, assume that the existing paint coating is NOT a Class B coating system.

9. In general terms, demolition work and the use of word “demolish”, must include the removal, effective management and disposal of existing construction and or structures.

Contractor must take care to prevent damage to existing utilities and construction that are not scheduled for demolition. If damage occurs, the Contractor must make repairs to the satisfaction of the Contracting Officer and at no cost to the Government. Selling of demolished or salvaged materials and equipment on government properties is prohibited. Dispose of all unused and demolished materials to an offsite location.

10. All repair materials must be new and are to be procured and installed by the Contractor, unless specifically noted as existing or as being provided by the government.

11. Adhere to all EM-385 and OSHA safety regulations. The use of access man lifts and fall protection devices will likely be required as part of this project.

12. Provide the Contract Line Item (CLIN) lump sum price for the items listed in the Supplementary Instructions to Offerors and the Price proposal Form (CLIN 0001AB – CLIN 0001AF). These items are to be included in the construction contract only at the direction of the Contracting Officer.

13. Submittals: The Contractor must submit all manufacturer’s drawings, certifications, catalog cuts, welders’ qualifications, testing and inspection reports, warranty documents and a safety plan to the Contracting Officer for review. Work may not begin on any given work task until all submittals related to that task have been successfully reviewed and approved by the Contracting Officer.

14. Work Schedule: Work will be accomplished in and around areas involving boat and ship traffic. Accordingly, measures must be taken to avoid interference. The DCS facility itself hosts infrequent personnel activity. Minimal interference with DCS personnel is expected. The Contractor must submit his proposed Work Schedule to the Contracting Officer at least 15 working days in advance of arriving on-site. All work milestones must be coordinated with the government inspector, the Facility Manager and the Activity Point of Contact.

15. The Contractor must contact the Government Representative 24 hours in advance to set up a time for final approval and acceptance of the repairs. The Activity point of contact must also be notified. Contract must not be considered complete until a satisfactory record of inspection is granted.

16. Any hazardous waste generated must be disposed and managed as such. Coordinate with the hazardous waste program manager to ensure environmental compliance. If further clarification/guidance is needed, contact Ronnie Stephens at (757-341-0642) or ronnie.s.stephens.civ@us.navy.mil

Summary of Required Work:

Steel Piles: (4) 18-in. diameter, battered steel pipe piles have minor coating failure on estimated 10% of the surface area and surface corrosion in the tidal zone.

Provide power tool cleaning or scraping of existing steel tube piles. Clean surfaces above mean low water (MLW) elevation.

Collect removed debris from pile cleaning implementing methods to prevent debris from entering waters surrounding DCS. Methods of collection and disposal must be in accordance with local, state, and federal laws and regulations.

Provide and apply commercial grade paint and primer to steel tube piles. Apply paint evenly without runs, sags, cracking or pinholes. Match color of existing surfaces on DCS.

Steel Pile Caps: (2) 15-ft. long x 6-in. wide pile cap W-shapes have minor coating failure on an estimated 10% of the surface with light surface corrosion.

Provide power tool cleaning or scraping of existing steel pile caps.

Collect removed debris from pile cap cleaning implementing methods to prevent debris from entering waters surrounding DCS. Methods of collection and disposal must be in accordance with local, state, and federal laws and regulations.

Provide and apply commercial grade paint and primer to steel pile caps. Apply paint

Upper and Lower Steel Beams: (8) 15-ft. long x 6-in. wide steel beams have minor coating failure on an estimated 10% of the surface.

Provide power tool cleaning or scraping of existing upper and lower steel beams.

Collect removed debris from beam/ girder cleaning implementing methods to prevent debris from entering waters surrounding DCS. Methods of collection and disposal must be in accordance with local, state, and federal laws and regulations.

Provide and apply commercial grade paint and primer to steel framing. Apply paint

Steel Conduits: (4) 30-in. diameter steel conduits have minor coating failure on an estimated 10% of the surface and light surface corrosion.

Provide power tool cleaning or scraping of existing steel pipe conduits. Clean surfaces above mean low water (MLW) elevation.

Collect removed debris from conduit cleaning implementing methods to prevent debris from entering waters surrounding DCS. Methods of collection and disposal must be in accordance with local, state, and federal laws and regulations.

Provide and apply commercial grade paint and primer to steel columns above MLW.

Apply plaint evenly without runs, sags, cracking or pinholes. Match color of existing surfaces on DCS.

Steel Bollards: Location of (2) existing 4” diameter bollards will not be feasible with new docking platform and fender system.

Demolish and remove complete (2) existing 4” diameter steel bollards from existing W8 beam. Ensure web of existing W8 beam is not damaged.

Provide (2) 4” diameter steel bollards at new, outboard locations as shown on design drawings as part of this bid package.

Docking Platform and Fender Frame: Existing fender system is causing damage to docking ships and there is currently no safe way to access ladder. A 3’-0” wide docking platform will be provided.

Demolish existing foam filled fenders and attachment hardware.

Provide power tool cleaning or scraping of existing C12x30 steel channels previously used as vertical fender supports.

Grind steel smooth at torch cuts, and provide power tool cleaning or scraping of existing horizontal W-sections.

Collect removed debris from demolition and W-section cleaning implementing methods to prevent debris from entering waters surrounding DCS. Methods of collection and disposal must be in accordance with local, state, and federal laws and regulations.

Perform ultrasonic testing to measure the thicknesses of base materials and welds to remain. If section loss is greater than 10%, report findings to contracting officer for reevaluation of project scope.

Provide and apply commercial grade paint and primer to steel W-sections. Apply paint evenly without runs, sags, cracking or pinholes. Match color of existing surfaces on DCS.

Provide (8) W6x20 beams. Weld all around to existing C12x30 vertical channels at the two elevations shown in the drawings.

Provide (2) C6x10.5 channels entire length of dock at elevations shown in drawings. Use clip angles and bolts as shown in drawings to attach W6x12 beams.

Provide double L3x3x3/8 braces attached to frame with the use of gusset plates. See drawings for details.

Provide (4) C15x40 steel channels for attachment of foam fender system. Attach to (2) horizontal C6x10.5 channels with use of welds. See S-101 for details.

Provide 1.5” steel grating place on dock frame. Attach per manufacturer’s instructions.

Provide (4) foam rubrail wing-type fenders. Attach to C15x40 vertical members per manufacturer’s recommendations.

Steel Ladder and Associated Safety Hardware: Steel ladder is in fairly good condition, but does not meet current code requirements. A new ladder with the use of a fall arrest system must be provided. Existing hinge plate security system is heavily corroded and considered unsafe without the use of an intermediate standing platform. A swing gate must be provided at ladder egress points for fall protection.

Torch cut and demolish steel ladder and attachment hardware complete.

Collect removed debris from ladder demolition implementing methods to prevent debris from entering waters surrounding DCS. Methods of collection and disposal must be in accordance with local, state, and federal laws and regulations.

Provide hot-dip galvanized steel ladder with fall arrest system (FAS) designed by ladder manufacturer. See specifications herein for ladder and FAS design requirements.

Provide new steel cage and hinge plate security system. See drawings for location.

Provide (2) pre-manufactured swing gates at ladder egress points. Attach swing gates to existing guardrail posts. See drawings for locations.

Specifications:

1. Provide and install all required materials in accordance with manufacturer’s written instructions.

2. Provide steel product data (material composition and strength tests) for review and approval prior to beginning fabrication. Shop drawings of doorframe to DCS connection is required to be submitted.

3. Work which requires the disturbance or removal of paint that has been determined to contain all or any of the following: lead, cadmium and chromium, must be performed in accordance with 29 CFR 1926.62, 29 CFR 1926.1126, and 29 CFR 1926.1127.

4. Work which requires the disturbance or removal of materials that are suspected to contain asbestos, including material testing, must be performed in accordance with 29 CFR 1926.1101.

5. Prior to welding, contractor must submit certification for each welder stating the type of welding and positions qualified for, the code and procedure qualified under, date qualified, and the firm and individual certifying the qualification tests.

6. Welds must be in accordance with AWS D1.1 “Structural Welding Code – Steel” and use E70XX electrodes. Unless otherwise noted, provide continuous fillet welds with minimum size required by Table J2.4 of the "Manual of Steel Construction, Load Resistance Factor Design."

a. Base metal must be sufficiently clean to permit welds to be made that will meet the quality requirements of AWS D1.1.

b. Loose scale, thick scale, and thick rust must be removed from the surfaces to be welded and from surfaces adjacent to the weld.

c. Surfaces to be welded, and surfaces adjacent to the weld, must be cleaned to remove excessive quantities of: Water, oil, grease, other hydrocarbon based materials. Unless otherwise noted in manufacturer’s instructions, structural steel must comply with the following specifications, also noted under structural steel notes on S-001:

i. Plates & bars (except w-shapes) - ASTM A36, Fy=36 ksi

ii. Angles - ASTM A36, Fy=36 ksi

iii. High Strength Bolts - ASTM A325 Type 1

iv. Nuts - ASTM A563, Grade to Match

Bolt

v. Washers - ASTM F844

7. Special Inspections are required for this project. Refer to the Statement of Special

Inspections and Schedule of Special Inspections included in the contract documents of this project’s bid package.

8. All steel permanently exposed to the weather must be hot dipped galvanized in accordance with ASTM A123 or A153 as applicable.

9. Finishing paint must match the color of the adjacent surfaces of the DCS. Paint must be applied in accordance with SSPC-PA 1 to the surfaces of installed hardware and offset 1 ft.

surrounding new work (applied to DCS).

a. Zinc-Rich Epoxy Base Coat Epoxy polyamide, MIL-DIL-24441/19C (Formula 159, Type III), 3 mil min.

thickness.

b. Epoxy Intermediate Coat Epoxy polyamide, MIL-DIL-24441/31 (Formula 150, Type IV), 3 mil min.

thickness.

c. Epoxy Top Coat Epoxy polyamide, MIL-DIL-24441/31 (Formula 151, Type IV), 4 mil min.

thickness.

10. Climbing ladder with fall arrest system must be designed to meet the requirements of the

Navy Fall Protection Guide and the following loads:

a. Fall Arrest System………………… 3,000 lbs.

b. Rungs…………………………………… 1,000 lbs. applied in the middle of the rung.

c. Attachment to walls…………….. 3,000 lbs. shear

Note: Rungs in which fall arrest system attaches to are required to resist 3,000 lb shear applied to the middle of the rung.

11. A standard SHOA compliant fixed industrial ladder (off-the-shelf) having ¾” rungs will not meet these load requirements. It is not permitted to attach or install a climbing ladder fall arrest system to an off-the-shelf ladder.

12. The manufacturer of the climbing ladder with fall arrest system must consider the shear and tension forces acting simultaneously on the anchors due to the eccentricity of the shear load acting on the attachment.

Quality Control Submittals:

Provide submittals electronically in .pdf format. The following is a synopsis of submittals for review and approval by the Contracting Officer:

Manufacturer’s Product Data: Submit manufacturer’s written detailed product data cut sheets for all material and equipment used on this project.

Color Selection samples to match existing painted surfaces.

Torch Cutter Qualifications.

Welder Qualifications.

Steel Framing Product Data & Shop Drawings

Paint and Finishing Product Data

Accident Prevention Plan (APP)

Activity Hazard Analysis (AHA)

Hazardous Waste/ Debris Management/ Disposal Plan.

Fall Protection Plan

Drawings:

Refer to NAVFAC drawing numbers 12,937,904 – 12,937,907 as part of the bid package of this project for more information.

Refer to Bathymetric Condition Survey dated October 2023 for depth sounding information near the DCS structure as part of the bid package for this project. Soundings shown are in feet and refer to the NOAA Mean Lower Low Water (MLLW) Datum.

Project Photographs:

Refer to the Inspection Report by Collins Engineers, Inc. from October 2019 for photographs and additional information.

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