Addendum No. 1 IFP #52-26-SKL Warfield Canal Dredging.pdf

Purchasing Office 801 Crawford Street • Portsmouth, VA 23704

Office (757) 393-8831 • Web Address: www.portsmouthva.gov

July 22, 2026

ADDENDUM NO. 1

TO ALL BIDDERS:

INVITATION FOR BID (IFB): NO. 52-26-SKL

COMMODITY: Warfield Canal Dredging

BIDS DUE: Thursday, July 30, 2026, at 2:00 PM EDT

This Addendum is to answer, make any changes and clarify questions submitted for this project.

Questions Submitted:

1. What is the City’s process for removing alligator grass? Is the contractor responsible for removal of alligator grass at all?

Answer: The City has contracted with a separate contractor for aquatic herbicide application to areas of alligator weed within the project area. These applications are ongoing and are anticipated to be complete prior to this work being undertaken.

Bidder has no responsibility for alligator weed treatment or removal under this contract.

2. Will the contractor that is responsible for the removal of the alligator grass be able to submit a document showing that there is no active alligator grass spores in the dredged material?

Answer: The City’s separate contractor is responsible for eradication of all alligator weed spores. At this time, we do not have a requirement for documentation to be provided.

3. How many areas are contractors accessing the lake from?

Office (757) 393-8831 • Web Address: www.portsmouthva.gov

ANSWER: Access to the lake is from Cavalier Boulevard right-of-way for dredging and through an existing 25-foot wide drainage easement between 1301 Warfield Drive and 1215 Warfield Drive for culvert pipe removal and end wall placement.

4. Instead of using VDOT EW-1 headwall, can the contractor use rip rap for outfall stabilization?

ANSWER: No. Due to easement width and tieback grading constraints, an endwall is required.

5. How many trees should contractor include for trimming in our price?

ANSWER: The amount of tree trimming will be dictated by the type of equipment used by the successful bidder. The City cannot determine the amount of tree trimming required and the bidders should familiarize themselves with the work area and include anticipated costs for vegetation removal in their bid.

6. How many trees should contractor include for removal in our price?

ANSWER: 6 small trees will need to be removed. This is also noted below under the project manual modifications.

7. Is the trash removal limited to just the existing materials inside of the trash boom?

ANSWER: Successful bidder is responsible for removing trash and debris contained by the existing trash boom and trash and debris in the areas proposed to be dredged in accordance with the Dredging Supplemental Specification Sections 1.1.3 and 3.1.4.

8. Is the contractor responsible for the cost of the before dredge and after dredge surveys?

ANSWER: Yes. The successful bidder is required to contract directly with Rouse- Sirine Associates, LTD to facilitate an accurate comparison of pre- and post-dredge conditions to the existing conditions survey completed for the project and dated May 18, 2023. Refer to Section 1.2.6 of the Supplemental Specification for Dredging for additional information.

Office (757) 393-8831 • Web Address: www.portsmouthva.gov

9. Will the contract be adjusted if before dredge survey reveals a discrepancy in the amount dredged on the plans from Kimley-Horn?

ANSWER: Successful bidder shall notify the Owner of discrepancies between the depths on the bid set and the bidder conducted pre-dredge survey in accordance with Dredging Supplemental Specification Section 1.2.6. Owner will review discrepancies between bid drawings and pre-bid survey if presented and provide direction to the successful bidder regarding changes to the scope of work, adjustments in dredge volume, or both based on differences in between the pre-dredge survey and the bid documents.

10. What are the restrictions for working around power lines on Cavalier Blvd?

ANSWER: Bidder shall protect existing overhead power lines during execution of work. Bidder shall conduct work in proximity of overhead electrical lines in accordance with OSHA requirements as well as Dominion Energy easement requirements. Bidder is responsible for coordination with utility providers should they wish to provide temporary overhead utility line support for communications lines. Site survey depicts the height above ground surface of the lowest overhead line on the date of survey and should be verified by the contractor prior to commencement of construction.

Project Manual:

1. In Section 102, Part I.1, first paragraph is revised to read:

“The City of Portsmouth, Virginia will receive electronic sealed bids for the above titled until 2:00 p.m. local time on Thursday, July 30, 2026.

Bids will be publicly opened and read aloud on the next day, at 2:30 p.m.

by Issuing Agency at the Teams meeting link below. Any Bids received after the specified time and date will not be considered. Bids opening Teams meeting link:

https://teams.microsoft.com/meet/262669360385375?p=Flse0l08LaTmu W01m3” https://teams.microsoft.com/meet/262669360385375?p=Flse0l08LaTmuW01m3 https://teams.microsoft.com/meet/262669360385375?p=Flse0l08LaTmuW01m3

Office (757) 393-8831 • Web Address: www.portsmouthva.gov

2. In Section 102, Part III. Bid Form, the Bid Closing Date is revised to Thursday, July 30, 2026, Time 2:00 pm, EDT. The Bid Opening Date is revised to Friday, July 31, 2026, Time 2:30 pm, EDT.

A signed acknowledgment of this Addendum must be received by this office either prior to the bid due date or attached to your bid. Signature of this Addendum does not substitute for your signature on the original Invitation for Bids document. The original Invitation for Bids document must be signed.

Sincerely, Susan Kenney-Lambert, CPPB Contract Specialist III

ACKNOWLEDGMENT

Name of Firm

Signature/Title

Date