ISSUE DATE: April 13, 2026

TO: Interested Firms

FROM: Shari Chinevere, Procurement Manager

SUBJECT: Invitation for Bids 42069, Addendum 1

Underwater Structure Repairs

Please be advised of the following regarding the subject Invitation for Bids:

A. Bid Due Date has been extended to Tuesday, April 21, 2026 at 2:00PM

B. Questions / Answers

1. Please clarify required coating systems. All coatings and/or sealants shall be recommended by the contractor and approved by the District. The are several coatings and/or sealants that are approved for marine grade applications for both above and below the waterline. For steel structures, above the waterline, the District has used Dura-plate 235 as a protective coating for structural steel.

2. Please clarify types and requirements for hardware to be used on this project. For this bid and estimate all bolts to be replaced shall be considered ½” 304 stainless steel. An additional three days for the

Dive Team have been added to the bid schedule to allow time for the contractor to verify hardware requirements should they be different than noted above.

3. Are structure sizes included in the report? The District has reviewed the inspection reports and believe all appropriate sizing information is contained within the reports. No additional information is provided.

4. What is the extent of timber repairs and flange work required on this project? Most timber modifications/wood epoxy needs have been removed from the work requirement.

5. How should any dredged materials be handled? This request has been removed from the solicitation.

6. Please confirm flap gate dimensions. Flap gate sizes are noted on the inspection reports.

7. Please provide guidance regarding previously used liner repair materials and acceptable wood epoxy products. This question was in reference to B-1, we believe that this pipe is A-2000 PVC.

C. Scope of Work Revisions (See attached Revised Scope of Work)

The Scope of Work has been revised to remove the following structures and changes the total number of structures for repairs to thirteen (13):

1. S-250A

2. S-250C

3. S-250D

4. S-257

5. S-258

42069IFB26 Addendum 1

D. Project Location Map Revisions (See attached Revised Figure 3 – USJRB South and Revised Figure

5 - Upper Ocklawaha River Basin (UORB)

Exhibit 1 – Project Location Maps has been revised to add Structure S-3 to Figure 3 – USJRB South, and remove Structure HBO from Figure 5- Upper Ocklawaha River Basin (UORB).

E. Repair List Revisions (See attached Revised Exhibit 2: 2026 Underwater Repair List)

Exhibit 2: 2026 Underwater Repair List has been revised to edit several of the repair requirements and remove the following structures in their entirety.

1. S-250A

2. S-250C

3. S-250D

4. S-257

5. S-258

F. Bid Form Revisions (See attached Revised Bid Form)

The Bid Form has been revised to remove the following structures and adds an additional three days for the Dive Team to allow time for Contractor to verify hardware requirements should they be different than noted herein.

1. S-250A

2. S-250C

3. S-250D

4. S-257

5. S-258

G. This Addendum forms a part of the Contract Documents and modifies the original Bid Documents as set forth below. This Addendum supersedes any contrary information or requirements contained in the original documents. Contractors shall acknowledge receipt of this Addendum as required.

H. In the event of a conflict between this Addendum and the original solicitation documents or plans, this

Addendum shall govern and shall constitute a binding part of the Contract Documents. All provisions of the original specifications shall remain in full force and effect, except as specifically modified by this

Addendum.

NOTE: Please acknowledge receipt of this Addendum in your submittal.

If you have any questions regarding this addendum, contact Shari Chinevere at (386) 643-1172 or via email at SLChinev@sjrwmd.com.

End Addendum 1 mailto:SLChinev@sjrwmd.com

INVITATION FOR BIDS

42069IFB26 UNDERWATER STRUCTURE REPAIRS

PART 1 – REVISED SCOPE OF WORK

I. INTRODUCTION

The St. Johns River Water Management District (District) comprises all or part of 18 counties starting at the

Florida/Georgia border (Nassau County) down to Vero Beach (Indian River County) and from the Atlantic Ocean to Interstate 75 and south through Orlando. The District’s boundaries are based on natural, hydrogeologic basins rather than political/county limits to allow for effective and efficient planning and management.

Every five (5) years, the District performs inspections of all underwater structures within flood control levees. In summer 2025, Underwater Engineering Services, Inc. (UESI) performed the most recent underwater inspections of the minor water control structures associated with the District’s flood control levee systems for the District. During these inspections, commercial divers utilizing surface supplied diving equipment performed complete and thorough inspections of the interior and exterior portions of the water control structures as well as the surrounding channels and instrumentation. The defects and conditions of the structures inspected were recorded and conveyed through written condition reports and video taken during the inspections. These inspections revealed that a number of the structures and culverts require repairs to ensure their continued operability.

II. OBJECTIVE

The objective of this work order is to perform repairs to thirteen (13) structures associated with the District’s flood control systems. Exhibit 1 contains Figures 1 through 5, which depict structure location maps for this work.

The structures to be repaired include the following:

a. AP-1

Structure AP-1 is a gated culvert comprised of two barrels, extending west (gated end) to east under Levee

FWMA north of Headwaters Lake / Fellsmere Water Management Area in Indian River County. The barrels are CAP, 96 inches diameter by 186 feet long. The west end has an access pier comprised of steel superstructure supported by steel piles.

b. B-1

Structure B1 is a gated culvert comprised of two barrels, extending south (gated end) to north under Levee

C-231 adjacent to the Sunnyhill Restoration Area in Marion County. The barrel is a PVC-lined, 36 inches diameter by 60 feet long. Both ends have an access pier comprised of timber piles and a timber superstructure providing access to the stilling wells or sampling tubes. There are two gates at the upstream end. The gates have been replaced since the 2020 inspection.

c. E-2

Structure E2 is a gated culvert comprised of three barrels, extending southeast (gated end) to northeast under Levee E-2 in the Sunnyhill Restoration Area in Marion County. The barrels are CAP, 60 inches diameter by 80 feet long. The upstream end has an access pier comprised of timber piles, a timber superstructure, and steel channels for cross bracing. The east and middle barrels have a gate at the barrel ends. The west barrel has a riser with two gates mounted to the riser.

d. E-3

Structure E3 is a gated culvert comprised of one barrel, extending south (gated end) to north under CD

Levee in the Sunnyhill Restoration Area in Marion County. The barrel is a CAP, 60 inches diameter by 70 feet long. The south end has an access pier comprised of timber piles, steel channel cross bracing and a timber superstructure. The downstream end has an access pier comprised of steel H-piles, steel caps, and an aluminum superstructure. The slide gate appears to have an upper gate.

e. PS-2N

Structure PS-2N is a pump station comprised of three pumps and discharge pipes, extending east (pump end) to west (discharge end) under Levee L-74N in Brevard County. The intakes and discharge pipes are steel. The north pipe, No. 1, is 18 inches diameter. The middle (No. 2) and the south (No. 3) pipes are 36 inches diameter. The distance from the intake to the discharge is approximately 220 feet.

f. PS-2RO

Structure PS-2RO is a pump station discharge structure comprised of three discharge pipes, extending east

(upstream end) to west (flap gated end) under Levee FWMA in Indian River County. The discharge pipes are CAP, 78-inch diameter by 85 feet long.

g. S-2

Structure S-2 is a gated culvert comprised of three barrels, extending west (gated end) to east under Levee

L-75 in Indian River County. The barrels are CAP, 84 inches diameter by 100’ feet long. The west end has three access piers comprised of aluminum wide flange piles that also serve as the gate guides and a metal superstructure.

h. S-3

Structure S-3 is a gated culvert comprised of three barrels, extending south (gated end) to north under Levee

L-75 in Indian River County. The barrels are CAP, 72 inches diameter by 73’ feet long. The south end has an access pier above each barrel comprised of steel piles that also serve as the gate guides, and a metal superstructure.

i. S-250E

Structure S-250E is a gated culvert comprised of one barrel, extending south (gated end) to north under

Levee L-74W, which serves as the boundary between Indian River and Brevard Counties. The barrel is a

CAP, 72 inches diameter by 112 feet long. The south end has an access pier comprised of steel H-piles and an aluminum superstructure.

j. S-252A

Structure S-252A is a gated culvert comprised of two barrels, extending south (gated end) to north under

Levee L-78 on the north side of Fort Drum Conservation Area in Indian River County. The 60-inch diameter

CMP barrels have been lined with HDPE and are 126’ feet long. The south end has an access pier comprised of timber piles and a timber superstructure.

k. S-252D

Structure S-252D is a gated culvert comprised of one barrel, extending west (gate end) to east under Levee

L-79 on the east side of Fort Drum Conservation Area in Indian River County. The barrel has been relined with a 63” diameter HDPE inside the 72” CMP. The barrel is 170’ long.

l. S-252F

Structure S-252F is a gated culvert comprised of two barrels, extending south to north under Levee L-78 on the west side of Fort Drum Conservation Area in Indian River County. The barrels have been relined with HDPE. The barrels are 100 ft long each.

m. C1-RA1

Structure S-C1RA1 is a gated culvert comprised of one barrel, extending south (gated end) to north under

Levee C1RA on the west side of the C1 Retention Area in Brevard County. The barrel is a CAP, 36 inches diameter by 120 feet long. The north end has an access pier comprised of concrete piers and an aluminum deck. There is a fixed gate at the upstream end. The downstream end was cut at the slope of the bank above water.

III. SCOPE

The Work includes repairs of identified deficiencies at thirteen (13) structures across the District. The Contractor shall provide a construction team including qualified divers and alligator trapping services to perform the repairs, which are primarily below water. The construction team shall include individuals qualified by experience and training in the repair of flood control structures. All dive operations shall meet the requirements and qualifications of 29 CFR 1910 Subpart T Commercial Dive Operations. The Contractor shall provide all necessary equipment to perform the tasks described in this Scope of Work at no additional charge to the District.

The repairs required at each structure are identified in Exhibit 2 - 2026 Underwater Repair List, and supported by

Exhibit 3, Inspection Reports. Item numbers shown in the Inspection Reports refer to deficiency item numbers. Not all deficiencies noted in the Inspection Reports are included in this project. Only the items specifically listed in the

2026 Underwater Repair List are included in the Scope of Work.

Contractor’s Responsibilities:

a. Conduct a preconstruction meeting with District operations staff 48 hours in advance of mobilizing to site.

At this meeting, Contractor will present a proposed schedule and order of the repairs.

b. Recommended actions in this solicitation are recommendations only; the District will entertain other repair options that may be discussed at the preconstruction meeting.

c. Mobilize to site and provide all labor, equipment and material to complete each specified repair.

d. The Contractor shall not operate any structure machinery or perform equipment lock-out/tag-out associated with the structure being inspected. This will be performed by District staff.

e. Provide product specifications for all materials to be used in the repairs above.

f. The Contractor shall be responsible for animal control. Problems with nuisance animals shall be the responsibility of the Contractor. The District has a Florida Fish and Wildlife Conservation Commission

(FWC) Special Purpose Permit (Permit) which allows for alligator security services for the purpose of repair of District structures, facilities and properties, Exhibit D. A copy of the District’s permit is attached as

Exhibit 4.

g. The Contractor shall be responsible for all materials, labor, and equipment needed to humanely and lawfully manage nuisance alligators, including proper disposal of any alligator that must be lethally removed due to safety concerns or other necessity, and in accordance with all applicable permits and regulatory requirements. The Contractor shall provide the District documentation verifying proper disposal for each lethally removed alligator. The District’s objective is to limit lethal removal by requiring the permitted trapper to use non-lethal measures when feasible, including capture and release on District property when lawful and practical, including same-day release when possible.

h. Demobilize from site. The Contractor shall take care to protect all existing structures, roads, utilities and other improvements from damage. Additionally, the Work will be considered complete only after all rubbish and unused material associated with the Work has been removed and the premises left in a condition satisfactory to the District. All property disturbed or damaged during prosecution of the Work shall be restored to its former condition or better at no additional expense to the District.

District Responsibilities:

a. Provide access to Contractor.

b. Participate in preconstruction meeting.

c. Provide Florida Fish and Wildlife Conservation Commission (FWC) Special Purpose Permit which allows for alligator security services.

d. Operate all structures as requested by Contractor and provide lock-out/tag-out as necessary.

e. Oversee all aspects of the construction.

f. Review work completed and approve invoices.

IV. TIMEFRAMES AND DELVERABLES

All construction activities outlined in the Task Identification section must be completed by July 31, 2026.

V. PROJECT MANAGER/INSPECTOR INFORMATION

PROJECT MANAGER

Rayford McCain

Bureau of Operations and Maintenance

Mobile: 321-212-9329 rmccain@sjrwmd.com

PROJECT INSPECTOR

Harman Bansil

Bureau of Operations and Maintenance

Mobile: 321-978-1917 hbansil@sjrwmd.com

EXHIBITS

EXHIBIT 1 – PROJECT LOCATION MAPS (Figures 1 through 5)

EXHIBIT 2 – 2026 UNDERWATER REPAIR LIST

EXHIBIT 3 – UNDERWATER INSPECTION REPORTS (PROVIDED AS A SEPARATE FILE (220 PGS)

EXHIBIT 4 – FLORIDA FISH AND WILDLIFE CONSERVATION COMMISSION SPECIAL

PURPOSE PERMIT FOR ALLIGATOR MANAGEMENT

Revised Figure 3 – USJRB South

Revised Figure 5 – Upper Ocklawaha River Basin (UORB)

REVISED EXHIBIT 2 – 2026 UNDERWATER REPAIR LIST

Levee Structure Item # Description Score Repair Recommendation

Fellsmere East AP-1 US114

The access pier members have loss of coating with minor corrosion within a 6" to 2' high band in the splash zone. The beams have 5% coverage of coating loss. The pile caps have 75% coverage of surface corrosion.

The diagonal braces have 75% coverage of surface to minor corrosion with up to 1/16" deep pitting. The horizontals have 100% coverage of minor corrosion with up to 1/8" deep pitting. The piles have minor corrosion in a 6" band concentrated mostly on the web.

C-3 Clean and apply an epoxy coating on the corroded elements. If water level can be lowered, it may be able to be completed above water. For underwater elements, use an underwater coating.

Fellsmere East AP-1 US115 The clamps for the barrels have three or four bolts on each side. The bolts have moderate to major corrosion with up to 50% section loss, and the nuts have moderate to major corrosion with up to 50% section loss.

C-3 Replace the barrel clamp bolts with stainless steel bolts and nuts.

C-231 B-1 DS115

The west barrel had a crack extending across the crown from the 10:00 to the 2:00 position, located 3' in from the downstream end. The crack is up to 1/8" wide and splits into a Y shape from 2:00 to 4:00 position with evidence of moisture. The crack is in the liner material.

C-3 Clean, route and apply a flexible sealant to the crack in the liner.

The pipe is assumed to be A-2000 PVC.

E2 Levee E2 US114 The cross bracing typically has 100% coverage of corrosion with rust scale. C-3 Clean and recoat the steel channel cross bracing. Place plastic washers under the bolt heads and nuts to separate the stainless steel bolts from the mild steel channels.

E2 Levee E2 DS115 The east barrel has several bolts in the side with an unknown purpose. One of the bolts located at 9:00 position and 64' in from the downstream end has evidence of soil intrusion, but no obvious sign of a hole around the bolt.

C-3 Clean around the bolt in the east barrel and apply a sealant around it to prevent future soil loss.

E3 Levee E3 US114 The pier has cross bracing using steel channels bolted to the timber piles. The channels had 100% coverage of corrosion with 90% coverage of pitting up to 1/16" with rust scale.

C-3

Clean and recoat the steel channel cross bracing. For the stainless steel bolts, place a plastic washer between the steel washer and the channel to separate the materials. Replace any corroded hardware.

E3 Levee E3 US114 The stringers were not in contact with the southern cap beams. C-3 Insert shims under the stringers to put them in contact with the cap beams.

E3 Levee E3 US153 The seals for the upper gates were damaged from the bolts. It appeared that these upper gates may have been installed backward - the seals are facing out, rather than inward. The seal on the west upper gate is missing 90% of the seal on the east side.

C-3 Install new seals on both gates.

E3 Levee E3 DS115 The barrel had mechanical damage at the downstream end from 09:00 to 12:00, measuring 18" x 18" C-3 Cut the end of the barrel so that the torn section is gone and no sharp edges or projections remain.

L-74 Extension PS-2N US106 The south sheet pile wall has an area, approximately 8 feet long, near the east corner with moderate corrosion scale where vegetation is overgrowing the wall. The north wall has two interlocks with evidence of moisture.

C-3 Clean and recoat the south sheet pile with moderate corrosion.

Pressure wash the interlocks and install sealant along the interlock.

Fellsmere East PS-2RO PS206

(1) All gates show no indication of grease on the pins. (2) Flap Gate #2 hinges have one missing washer, and 20% coverage of surface corrosion on the washers that are present.

C-3

(1) Install grease into the hinges. (2) Replace all washers on the hinges on Flap Gate #2.

L-75 S-2 US155

All three gate stems have a collar connection at the bottom to the gate frame. The collar is connected with four bolts. The nuts for these bolts have corrosion with up to 50% section loss.

C-3 Replace the collar connection bolts to the gate frame at each gate with stainless steel bolts and nuts.

L-75 S-2 DS153

The north barrel gate seal had some of the plastic ring still visible. The seal has two leaks. The leaks were approximately 2 gpm each, over a 1' length, and located at the 1:00 and 5:00 positions.

C-3 Cycle the north gate to dislodge possible debris. If gates do not close, recommend repair options to District PM for consideration.

Work would be completed as a change order.

L-75 S-3 US155

The stem guard for Gate #1 is detached at the bottom of the guard. (2) The stem for Gate #3 appears to be bowed out of alignment approximately 1" to 2".

C-3

(1) Reattach the stem guard. (2) Cycle the gates with District Project Manager and observe stresses in machinery and movement in stem.

L-74W S-250E DS153

The gate has a moderate leak of approximately 10 gpm over a 1' width at the 6:00 position. The gate does not appear to be closed. The diver noticed a 1/2" gap on the upstream side. The diver did not observe debris from the downstream side, but did observe up to 1" diameter branches stuck below the gate on the upstream side.

C-4 Check the limits on the gate and adjust as necessary. Possibly open the gate and remove debris and see if the gate will close.

REVISED EXHIBIT 2 – 2026 UNDERWATER REPAIR LIST

Levee Structure Item # Description Score Repair Recommendation

L-74W S-250E US155 The gate is missing one stem bolt, 1" dia. X 6" long. C-3 Install a new stem bolt.

L-78 S-252A US114

The hardware for the cross bracing for the timber pier had heavy corrosion below water with 50% section loss. The cross bracing had moderate checks and decay.

C-3 Replace the cross bracing and connection bolts for the timber pier.

Assume cross bracing to be replaced with four (4) 2" x 8" x 16' Marine Grade Pressure Treated timbers.

l-79 S-252D US152

(1) The south side of the frame has a broken weld on the bracket member that extends to the other side.

There was a 2" gap between the frame and the bracket. (2) The hardware connecting the bottom of the gate to the timber beam under the gate has minor to moderate corrosion. Refer also to DS153.

C-4

(1) Re-secure the bracket to the gate frame. (2) Replace the hardware between the bottom of the gate frame members and the timber beam.

L-78 S-252F US155

The angle brackets around the stem had 50% coverage of corrosion pitting up to 1/8" deep with additional loss on the edges.

C-3 Replace the angle brackets around the lifting stems.

L-78 S-252F DS60 The backboard was loose due to decay in the blocking. The blocking bolts had 20% corrosion section loss. C-3 Resecure the backboard to the pile by replacing the blocking connections.

C1RA C1-RA1 DS115

(1) The downstream end had mechanical damage at 3:00, with cuts up to 12" long. (2) The barrel has five field joints with gaps ranging from 0.5" to 1.5". The joints at 60' and 80' penetration had evidence of moisture coming through and small amount of sediment.

C-3

(1) Trim the downstream end so it is not a safety hazard. (2) Clean and apply a flexible sealant to the joints at 60' and 80' penetration.

INVITATION FOR BIDS

42069IFB26 UNDERWATER STRUCTURE REPAIRS

REVISED BID FORM

ITEM # DESCRIPTION UNIT TOTAL**

1 AP-1 LS $

2 B-1 LS $

3 E-2 LS $

4 E-3 LS $

5 PS-2N LS $

6 PS-2RO LS $

7 S-2 LS $

8 S-3 LS $

9 S-250E LS $

10 S-252A LS $

11 S-252D LS $

12 S-252F LS $

13 S-C1RA1 LS $

14 DIVE TEAM (3 MAN CREW) 3 DAYS $

TOTAL BID

** Each item’s lump sum total shall be inclusive of all materials, equipment, appurtenances and labor required to perform the work and complete the repairs described in this solicitation.

PUBLIC RECORDS: Florida Statutes provide that sealed submittals or replies received by the District shall remain exempt from disclosure until an intended decision is announced or until 30 days from the opening, whichever is earlier. This means that Respondents will not be able to obtain a copy of their competitors’ submittals until the statutory time has elapsed.

AIS REQUIREMENT: If the solicitation concerns a public works project or involves the procurement of materials for use in a public works project as defined in §255.0993, Fla. Stat., the Respondent hereby acknowledges that it is obligated to comply with the American Iron and Steel Requirement (the “AIS Requirement”) set forth therein and

Respondent hereby certifies that any iron or steel product contained in this Cost Schedule that is to be permanently incorporated into the subject project will be produced in the United States in accordance with the AIS Requirement.

Respondent agrees that it shall be responsible for any penalty imposed as a result of Respondent’s failure to comply with the AIS Requirement. In addition, Respondent has included any costs associated with the AIS Requirement into this cost schedule.

UNDER PENALTIES OF PERJURY, I, as the Respondent’s authorized officer or representative, hereby declare that I have fully reviewed the Respondent’s submittal, of which this Cost Schedule is a part; that all facts stated in the submittal are true; that I understand all terms and conditions set forth in the District’s solicitation; and that, if awarded, the Respondent shall fully comply with all terms and conditions.

Name of Respondent Company

Authorized Representative Signature Date

Printed Name/Title

This document must be completed and returned with your submittal