W912EP26BA005_Mayport FY26 OM_PreBid Site Visit.pdf

**All Questions regarding this solicitation should be referred to Guesley Leger, Contract Specialist at (904) 232-3850 or via email at guesley.leger@usace.army.mil.

PREBID SITE VISIT

SOLICITATION NUMBER: W912EP26BA005, U.S. Naval Station Mayport Maintenance Dredging, Duval County, Florida

Date: March 19, 2026 Time: 10:00 AM Location: NS Mayport Pass & ID Office

Purpose: Allow prospective contractors access to the sites, formulate questions, and make appropriate considerations in their proposal preparations. Technical inquiries and questions relating to this solicitation are to be submitted via Bidder Inquiry in ProjNet at (https://www.projnet.org) No Later Than (NLT) 20 MARCH 2026, End of Day. To submit and review inquiry items, prospective vendors will need to use the Bidder Inquiry Key presented below and follow the instructions listed below the key for access. A prospective vendor who submits a comment / question will receive an acknowledgement of their comment/question via email, followed by an answer to the comment/question after it has been processed by our technical team. All timely questions and approved answers will be made available through ProjNet.

The Solicitation Number is: W912EP26BA005 The Bidder Inquiry Key is: H46IP7-KB7WW5

Pre-Bid Conference: A pre-bid conference will be held virtually on Friday, March 20, 2026, at 10:00 a.m. EDT via Microsoft Teams, using the following access information:

Meeting ID: 993 897 397 236 Passcode: xT7yD9ZA Dial-In Number: +1 601-262-2433 Phone Conference ID: 197 637 451#

Summary of Work: Project work consists of maintenance dredging portions of U.S.

Naval Station Mayport including Bar Cut-3, Mayport Entrance Channel, Turning Basin, Destroyer Slip, and Small Boat Basin. Excavated material will be transported to and disposed in the Jacksonville Ocean Dredged Material Disposal Site (ODMDS) Release Zone "A". Incidental work includes turbidity monitoring, environmental species monitoring, and sea turtle trawling.

mailto:guesley.leger@usace.army.mil

Key Contract Requirements:

Commencement, Prosecution, and Completion of Work - Construction (Apr 1984) The Contractor shall be required to (a) commence work under this contract within 60 calendar days after the date the Contractor receives the notice to proceed, (b) prosecute the work diligently, and (c) complete the entire work ready for use not later than 200 calendar days. The time stated for completion shall include final cleanup of the premises.

VARIATIONS IN ESTIMATED QUANTITIES -- SUB LINE ITEMS

This variation in estimated quantities clause is applicable only to item Nos. 0002, 0003 & 0004.

(a) Variation from the estimated quantity in the actual work performed under any second or subsequent subline item or elimination of all work under such a second or subsequent subline item will not be the basis for an adjustment in contract unit price.

(b) Where the actual quantity of work performed for item Nos. 0002, 0003 & 0004 is less than 85% of the quantity of the first subline item listed under such item, the contractor will be paid at the contract unit price for that subline item for the actual quantity of work performed and, in addition, an equitable adjustment shall be made in accordance with the Variation in Estimated Quantities in Section 00 73 00.

(c) If the actual quantity of work performed under item Nos. 0002, 0003 & 0004 exceeds 115% or is less than 85% of the total estimated quantity of the subline item under that item and/or if the quantity of the work performed under the second subline item or any subsequent subline item under item Nos. 0002, 0003 & 0004 exceeds 115% or is less than 85% of the estimated quantity of any such subline item, and if such variation causes an increase or a decrease in the time required for performance of this contract the contract completion time will be adjusted in accordance with the Variation in Estimated Quantities in Section 00 73 00.

Specification Section 01 11 00:

1.2.4.1 Adjacent Contractors

Active dredging near the project site may impact Contractor work. Separate contracts are underway for maintenance dredging within Jacksonville Harbor between Bar Cut-3 Station 198+00 to Cut-17 Station and Cut-55 Station 0+00 to Lower Terminal Channel Station 65+00 (one contract), and within various Jacksonville Port Authority's berths (second contract), in which each contractor is using the same ODMDS and possibly the same zone that will be used under this contract. Coordinate activities to avoid impact to the adjacent Contractors and prevent problems from the adjacent contracts.

1.2.5 Contractor Access and Use of Premises for Mayport Project Activity Regulations Ensure that Contractor personnel employed on the Activity become familiar with and obey Activity regulations including safety, fire, traffic and security regulations. Keep within the limits of the work and avenues of ingress and egress. To minimize traffic congestion, delivery of materials to the Base shall be outside of peak traffic hours (6:30 to 8:00 a.m. and 3:30 to 5:00 p.m.) unless otherwise approved by the Contracting Officer. Wear hard hats in designated areas. Do not enter any restricted areas unless required to do so and until cleared for such entry. Mark Contractor equipment for identification. A partial list of key Naval Station Mayport regulations is provided in

APPENDIX A.

1.2.5.2 Installation Access

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 the DBIDS is not mandatory, and Contractor personnel may apply for One-Day Passes at the Base Visitor Control Office to access an installation. If the Contractor chooses to not participate, the Contractor's personnel will have to obtain daily passes, be subject to daily mandatory vehicle inspection, and will have limited access to the installation. The Government will not be responsible for any cost or lost time associated with obtaining daily passes or added vehicle inspections.

1.2.5.2.4 Pier Area Access Passes

Access to the wharf will require all Contractor personnel to obtain pier area passes.

Contractor must prepare personnel lists with supporting documentation and coordinate with the Contracting Officer for these passes. Typically passes will need to be renewed on approximately a weekly basis.

1.2.5.2.5 Port Security Barrier (PSB) Access

All maritime access to the turning basin and berthing areas will require access through the Port Security Barrier. Access through the PSB will be directly coordinated with Naval Station Mayport Port Operations. Contractor will provide Naval Station Mayport Port Operations a minimum of two hours notice in advance of a required PSB opening.

Emergency/urgent situations necessitating an opening in less than one hour will be authorized on a case by case basis. Contractor will schedule the work and conduct operations in a manner that minimize opens during hours of darkness, keeps opening time to a minimum, and only necessary to meet mission requirements.

Specification Section 01 33 00:

1.5.1 Superintendent Qualifications

Provide project superintendent with a minimum of 5 years experience in construction with at least 3 of those years as a superintendent on projects similar in size and complexity. The individual must be familiar with the requirements of EM 385-1-1 and have experience in the areas of hazard identification and safety compliance. The individual must be capable of interpreting a critical path schedule and construction drawings. The qualification requirements for the alternate superintendent are the same as for the project superintendent.

Specification Section 01 35 26:

1.7.3 Additional Requirements

The Level 1 SSHO may not serve as the Quality Control Manager. The Level 1 SSHO may not serve as the Superintendent.

1.7.4 Contract Site Safety And Health Officer(s)(SSHOs) Minimum Requirements Provide a minimum of one Level One SSHO that meets the requirements of EM 385-1-1 for this project.

1.7.5 Dredging Contract Site Safety and Health Officer(s)(SSHOs) Requirements

1.7.5.1 Dredging SSHO Personnel Requirements

a. Provide a minimum of one primary Level One SSHO assigned for the primary shift.

b. For a project involving multiple work shifts, provide a minimum of a Level One SSHO for each additional shift.

c. For individual dredging projects the prime contractor will designate additional Level Three SSHOs at locations where the primary Level One SSHO is not located (example:

on dredge, tug, material placement site). Examples of one dredging project site is reflected in each of the following:

(1) a mechanical dredge, tug(s) and scow(s), scow route, and material placement site; or

(2) a hydraulic pipeline dredge, attendant plant, and material placement site; or,

(3) a hopper dredge (include land-based material placement site – if applicable.)

d. Designated SSHOs must be present at the project site, located so that they have full mobility and reasonable access to all major work operations and must be available during their shift for immediate verbal consultation and notification.

e. Designated Level One and Two SSHOs must have direct report authority to a senior project (or corporate) management official.

f. Designated Level Three SSHOs must report potential safety and occupational health hazards, incidents, and concerns to the Level One or Two SSHO on shift.

g. Level One and Level Two SSHOs for dredging must have a minimum of 3 years experience in one of the following areas:

(1) Supervising/managing dredging activities.

(2) Supervising/managing marine construction activities.

(3) Supervising/managing land-based construction activities.

(4) Work managing safety programs or processes.

(5) Conducting hazard analyses and developing controls in activities or environments with similar hazards.

Specification Section 01 45 05:

1.6.2 Quality Control (QC) Manager

1.6.2.1 Duties

Provide a QC Manager at the work site to implement and manage the QC program. The QC Manager must be employed by the Prime Contractor. The only duties and responsibilities of the QC Manager are to manage and implement the QC program on this Contract. The QC Manager must attend the Coordination and Mutual Understanding Meeting, perform the three phases of control, perform submittal review and approval, ensure testing is performed and provide QC certifications and documentation required in this Contract. The QC Manager is responsible for managing and coordinating the three phases of control and documentation performed by the QC

Specialists, testing laboratory personnel and any other inspection and testing personnel required by this Contract. The QC Manager is the manager of all QC activities.

1.16 NATIONAL DREDGING QUALITY MANAGEMENT PROGRAM SYSTEM

(DREDGES AND DUMP SCOWS)

1.16.1 System Requirements

See Section 35 20 23.13 NATIONAL DREDGING QUALITY MANAGEMENT PROGRAM - SCOW ULLAGE PROFILE and Section 35 20 23.33 NATIONAL

DREDGING QUALITY MANAGEMENT PROGRAM - PIPELINE HYDRAULIC DREDGE

and 35 20 23.23 NATIONAL DREDGING QUALITY MANAGEMENT PROGRAM - HOPPER DREDGE. However, in the event of NDQMP System failure (not fully operational), notify the Contracting Officer. If the NDQMP System cannot be used within 48 hours of failure, cease all dredging operations for the vessel until the NDQMP System is fully operational. Delays resulting from NDQMP System failure will be at the Contractor's expense.

Specification Section 01 57 20:

3.1.5.1 Listed Species Protection

c. Marine Animal Monitoring (Clamshell/Mechanical Only): During clamshell dredging operations, a qualified dedicated observer is to monitor for the presence of manatees and marine turtles. The dedicated observer must be in a location with direct line of sight for all in-water construction activity (i.e. direct line of sight of clamshell bucket or excavator arm entering water).

3.1.5.4 Endangered Species Observers (Hopper Dredge Only)

During dredging operations, observers approved by the National Oceanic and Atmospheric Administration - Fisheries (NOAA-Fisheries/NMFS) must be aboard to monitor for the presence of the listed species. Observer coverage must be 100 percent (24hr/day) and is to be conducted year round.

3.1.5.6 Hopper Dredge Equipment

Hopper dredge dragheads are to be equipped with rigid sea turtle deflectors which are rigidly attached. Deflectors are to be solid with no openings in the face.

3.1.5.7 Sea Turtle Trawling and Relocation (For Hopper Dredges Only)

a. Sea Turtle Trawling and Relocation: Initiation of sea turtle relocation via trawling will be determined by the Contracting Officer following the take of two sea turtles, without regard to species, and continue until as directed by the Contracting Officer.

Specification Section 01 57 25:

3.1 MONITORING REQUIREMENTS

3.1.2 Dredging Locations

Conduct monitoring at dredging locations provided sea, wind, visibility, marine traffic and other conditions allow for safe performance of the activity. Routine monitoring must be collected at surface and mid-depth at the following locations:

3.1.2.1 Station Descriptions

a. Station 1 (Compliance): No more than 150 meters downcurrent of the dredge or point of discharge and within the densest portion of any project-related turbidity plume.

b. Station 2 (Background): At least 300 meters upcurrent from the dredge or point of discharge and outside of any turbidity generated by the project.

Turbidity monitoring is not required at the ODMDS.

3.1.2.2 Frequency

Samples shall be collected approximately every four (4) hours during daylight dredging, beginning approximately 30 minutes after the commencement of dredging or placement activities, and also whenever a substantial plume approaches the edge of the mixing zone.

Specification Section 35 20 23:

1.5 DREDGING RESTRICTIONS

1.5.1 Order of Work

There is no specific order of work for this project.

1.5.3 "Charlie" Pier Restriction Dredging around "Charlie" pier is restricted during weapons loading and offloading operations. Dates, times and distances of restriction will be provided at least one week in advance.

1.5.4 Mayport Vessel Movements

Naval vessels arrive and depart at times on short notice, any movement of dredging operations required to allow unimpeded movements of the ships will be directed by the Contracting Officer.

3.5.3 Ocean Dredged Material Disposal Site (ODMDS)

Transport material excavated to and deposit in Release Zone "A" West of the Jacksonville ODMDS as indicated on the drawings. Do not place material higher than a depth of 30 feet MLLW. The use of bottom dump barges or bottom dump dredges and hydraulic unloading barges and hydraulic unloading hopper dredges to dispose of dredged material in the offshore disposal area will be permitted.

3.8 ENCOUNTER OF MUNITIONS AND EXPLOSIVES OF CONCERN (MEC) IN

PROJECT AREA

See the "Naval Station Mayport Probability Assessment For Munitions and Explosives of Concern, Duval County, FL" in Appendix A after the end of this section.

4.0 Summary and Conclusion

After reviewing all historical documents and conducting records search for military munitions use, there is no evidence indicative of MEC to be present within the construction footprint of this site. In addition, no MEC has been reported during the multiple years of maintenance dredging in this location since

FY13 – FY21.

5.0 Recommendations

It is the recommendation of CENAB Military Munitions Design Center that Naval Station Mayport O&M Navigational dredging project be classified as “No Probability” of encountering MEC.

3.14.4 Harbor Specific Dredging Restrictions (see Sheet ID G-03)

3.14.4.1 Jacksonville Harbor

A CRL-L is established at Cut-14/15, Station 0+00, and applies seaward of this point to Bar Cut-3, Station 191+75. A CRL-C is established at Bar Cut-3, Station 191+75 (located at the easterly junction of the Mayport Navy Basin) and applies seaward.

Dredging westward of Cut-14/15, Station 0+00 will have no CRL restriction.