rfp-des-2026-19-addendum-4.pdf

Murphy Dam Outlet Works Improvements Project, Pittsburg, NH

ADDENDUM NO. 4

To: All Prospective Bidders Murphy Dam Outlet Works Improvements Project

Location: Pittsburg, NH

From: Charlie Krautmann – NHDES Dam Bureau

Re: Addendum No. 4

Date: June 10th, 2026

Please find the following ADDENDUM NO. 4 for the Murphy Dam Outlet Works Improvements Project which is to be included as part of the Contract Documents thereof.

As per Specification Section 00200, Article 13.09 the bid shall contain an acknowledgment of receipt of this Addendum No. 4, (and all addenda). The addendum number and date shall be entered in the space provided in Section 00301 – Bid Form, Article 3 – 3.01A

Please note bids are due Friday, June 19th, 2026 at 1300 (EST). Hard copy bids may be received as stipulated in the Contract Documents.

This Addendum has been issued to include a bid alternate for the Broome gate tower roof as well as a few clarifications which include:

Item #1 – Addition of Bid Alternate No. 2: Asphalt Shingles for Broome Gate Tower

The Contract Documents are hereby amended to include Bid Alternate No. 2, described below.

This alternate will be added to Section 00301 – Bid Form and shall be priced as a separate lump-sum bid item.

Bid Alternate No. 2 – Remove Existing Shingles at Broome Gate Tower and Replace with Asphalt Shingles

Work under this alternate includes the removal and replacement of the existing roofing system at the Broome Gate Tower, as described below and in greater detail in Specification 01200 Bid Items 12a–b, and in accordance with Specifications 00 73 11 and 00 76 20 (Asphalt Shingles and Sheet Metal Flashing and Trim):

1. Contractor to verify and confirm dimensions of components described within Addendum 2, Attachment B. If discrepancies are noted during verification, notify owner and engineer immediately prior to proceeding;

2. Install all temporary scaffolding, staging and/or fall protection as necessary to comply with state and federal regulations.

3. Remove shingles and dispose of offsite;

4. Observe roof sheathing and confirm no structural damage or past signs of water damage;

5. Replace with asphalt shingles; and

6. Clean site debris associated with roofing rehabilitation.

7. Uninstall all temporary scaffolding, staging and/or fall protection as necessary to comply with state and federal regulations.

Item #2 – Bid Form

Replace the original section 00301 and the one in Addendum 2, Attachment A with this one to include the Broome Gate Tower shingle alternate, see Attachment A (Addendum 4).

Item #3 – Clarification

Question – On page 56 of the project manual, item 5, letter “c”, it states Buy America, and we were wondering which clause you are referring to?

Response – Buy America doesn’t apply for this project as it is not a federal-aid contract.

Item #4 – Clarification

Question – Please clarify how water temperature exceedances and monitoring protocols should be addressed during construction, and what criteria apply for determining acceptable conditions for work in the forebay and downstream reaches.

Response – Based on review and input from NHDES biomonitoring and trout fisheries staff, in coordination with NH Fish & Game, the following guidance shall apply:

1. Temperature Thresholds The 16°C threshold remains protective for trout fisheries. For evaluation of exceedances, both a daily maximum temperature and a 7-day rolling average may be used to guide construction activities. Occasional short-duration exceedances above 16°C (e.g., a daily maximum up to approximately 16.5°C) are not expected to result in significant impacts.

Temperatures approaching 18°C constitute a level of higher concern and should be avoided.

2. Inclusion of 2025 Temperature Data To illustrate the typical thermal conditions in the forebay and to support planning for construction sequencing, the 7-day rolling average EMP water-temperature graph from the 2025 monitoring season is included in Attachment B. This graph provides a representative depiction of seasonal variability and can be used as a reference for anticipating temperature trends during the allowable construction windows.

3. Monitoring Requirements Regular temperature monitoring will be required throughout construction.

• Frequency: Multiple readings per day

• Equipment: A calibrated scientific temperature sonde as approved by NHDES Temperature data shall be submitted to NHDES (attention: Amy Smagula, Amy.P.Smagula@des.nh.gov).

4. Operational Considerations and Questions Raised The Contractor shall address the following operational considerations as part of their construction sequence and reservoir management plan:

• Identify who will conduct temperature readings, the equipment to be used, the monitoring frequency, and staff qualifications.

The Contractor shall incorporate these requirements and considerations into their proposed construction sequence and monitoring plan, subject to review and approval by the Owner/NHDES.

mailto:Amy.P.Smagula@des.nh.gov

Attachment A

Updated Section 00301 – Bid Form Updated Rev 2.

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SECTION 00301 – BID FORM

PROJECT IDENTIFICATION: MURPHY DAM OUTLET WORKS IMPROVEMENTS

Article 1 – BID RECIPIENT

1.01 THIS BID IS SUBMITTED TO: Chief Engineer, New Hampshire Department of Environmental

Services, Dam Bureau, 29 Hazen Drive, PO Box 95, Concord, NH 03302-0095, here in after referred to as the Agency.

1.02 The undersigned Bidder proposes and agrees, if this Bid is accepted, to enter into an Agreement with the Agency in the form included in the Bidding Documents to perform all Work as specified or indicated in the Bidding Documents for the prices and within the times indicated in this Bid and in accordance with the other terms and conditions of the Bidding Documents.

Article 2 – BIDDER’S ACKNOWLEDGEMENTS

2.01 Bidder accepts all of the terms and conditions of the Advertisement or Invitation to Bid and Instructions to Bidders, including without limitation those dealing with the disposition of Bid security. The Bid will remain subject to acceptance for 90 days after the Bid opening, or for such longer period of time that Bidder may agree to in writing upon request of the Agency.

2.02 Bidder acknowledges that execution of a contract is subject to receipt of all state and federal permits necessary to complete the work. If permits are not received, the bid security will be returned to the Successful Bidder.

Article 3 – BIDDER’S REPRESENTATIONS

3.01 In submitting this Bid, Bidder represents, as set forth in the Agreement, that:

A. Bidder has examined and carefully studied the Bidding Documents, other related data identified in the Bidding Documents, and the following Addenda, receipt of which is hereby acknowledged:

Addendum No. Addendum Date

B. Bidder has visited the Site and become familiar with and is satisfied as to the general, local and Site conditions that may affect cost, progress, and performance of the Work.

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C. Bidder is familiar with and is satisfied as to all Laws and Regulations that may affect cost, progress, and performance of the Work.

D. Bidder has considered the information known to Bidder; information commonly known to contractors doing business in the locality of the Site; information and observations obtained from visits to the Site; the Bidding Documents; and the Site-related reports and drawings identified in the Bidding Documents, with respect to the effect of such information, observations, and documents on (1) the cost, progress, and performance of the Work; (2) the means, methods, techniques, sequences, and procedures of construction to be employed by Bidder, including applying the specific means, methods, techniques, sequences, and procedures of construction expressly required by the Bidding Documents; and (3) Bidder’s safety precautions and programs.

E. Based on the information and observations referred to in Paragraph 3.01.E above, Bidder does not consider that further examinations, investigations, explorations, tests, studies, or data are necessary for the determination of this Bid for performance of the Work at the price(s) bid and within the times required, and in accordance with the other terms and conditions of the Bidding Documents.

F. Bidder is aware of the general nature of work to be performed by the Agency and others at the Site that relates to the Work as indicated in the Bidding Documents.

G. Bidder has given Resident Project Representative (RPR) written notice of all conflicts, errors, ambiguities, or discrepancies that Bidder has discovered in the Bidding Documents, and the written resolution thereof by RPR is acceptable to Bidder.

H. The Bidding Documents are generally sufficient to indicate and convey understanding of all terms and conditions for the performance of the Work for which this Bid is submitted.

Article 4 – BIDDER’S CERTIFICATION

4.01 Bidder certifies that:

A. This Bid is genuine and not made in the interest of or on behalf of any undisclosed individual or entity and is not submitted in conformity with any collusive agreement or rules of any group, association, organization, or corporation;

B. Bidder has not directly or indirectly induced or solicited any other Bidder to submit a false or sham Bid;

C. Bidder has not solicited or induced any individual or entity to refrain from bidding;

D. Bidder has not engaged in corrupt, fraudulent, collusive, or coercive practices in competing for the Contract. For the purposes of this Paragraph 4.01.D:

1. “corrupt practice” means the offering, giving, receiving, or soliciting of any thing of value likely to influence the action of a public official in the bidding process;

2. “fraudulent practice” means an intentional misrepresentation of facts made (a) to influence the bidding process to the detriment of the Agency, (b) to establish bid prices at artificial non-competitive levels, or (c) to deprive the Agency of the benefits of free and open competition;

00301 - 3

3. “collusive practice” means a scheme or arrangement between two or more Bidders, with or without the knowledge of the Agency, a purpose of which is to establish bid prices at artificial, non-competitive levels; and

4. “coercive practice” means harming or threatening to harm, directly or indirectly, persons or their property to influence their participation in the bidding process or affect the execution of the Contract.

E. The Bidder accepts the state’s terms and conditions that apply to the particular bid and any resulting purchase order or contract by filling out and signing Form P-37 and that any other terms and conditions submitted by the bidder are null and void;

F. The Bidder will be subject to the terms and conditions stated on the purchase order relating to purchase; and

G. The Bidder offers to sell to the State of New Hampshire the commodities or services indicated at the price or prices quoted and in compliance with the requirements and specifications of the bid.

H. In addition to the foregoing, the Bidder shall, as part of his or her Bid submission, certify by notarized affidavit, signed under oath, that neither the Bidder, nor any of its subsidiaries, affiliates or principal officers:

1. Has, within the past 2 years, been convicted of, or pleaded guilty to, a violation of

RSA 356:2, RSA 356:4, or any state or federal law or county or municipal ordinance prohibiting specified bidding practices, or involving antitrust violations, which has not been annulled;

2. Has been prohibited, either permanently or temporarily, from participating in any public works project pursuant to RSA 638:20;

3. Has previously provided false, deceptive, or fraudulent information on a vendor code number application form, or any other document submitted to the state of New Hampshire, which information was not corrected as of the time of the filing a bid, proposal, or quotation;

4. Is currently debarred from performing work on any project of the federal government or the government of any state;

5. Has, within the past 2 years, failed to cure a default on any contract with the federal government or the government of any state;

6. Is presently subject to any order of the New Hampshire Department of Labor, the New Hampshire Department of Employment Security, or any other state department, agency, board, or commission, finding that the applicant is not in compliance with the requirements of the laws or rules that the department, agency, board, or commission is charged with implementing;

7. Is presently subject to any sanction or penalty finally issued by the New Hampshire Department of Labor, the New Hampshire Department of Employment Security, or any other state department, agency, board, or commission, which sanction or penalty has not been fully discharged or fulfilled;

8. Is currently serving a sentence or is subject to a continuing or unfulfilled penalty for any crime or violation noted in this section;

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9. Has failed or neglected to advise the Agency of any conviction, plea of guilty, or finding relative to any crime or violation noted in this section, or of any debarment, within 30 days of such conviction, plea, finding, or debarment; or

10. Has been placed on the debarred parties list specified in Adm 606.11 within the past year.

Article 5 – BASIS OF BID

5.01 Bidder will complete the Work in accordance with the Contract Documents for the following price(s):

Bidder proposes to furnish all materials and complete the Scope of Work described in general in these Bid Documents and more specifically as described in the Technical Specifications of the Contract Documents and as illustrated on the Contract Drawings for the sum of

(Words) (Numerals)

Or with the exclusion of Bid Alternate No. 1 for the sum of

(Words) (Numerals)

Or with the exclusion of Bid Alternate No. 2 for the sum of

(Words) (Numerals)

Or with the exclusion of Bid Alternate No. 1 and 2 for the sum of

(Words) (Numerals)

Bidder hereby agrees that requests for progress payments will be made on the basis of percentage of work complete by item for the items listed on the Schedule of Values, which follows on the following pages of this Bid Form. Bidder shall complete the Schedule of Values as part of the bid process. Bidder agrees that percentages of work completed are subject to approval by the Resident Project Representative (RPR) and the Bureau, or their authorized representative and that the decision of the Bureau regarding the percentage completed will be the sole basis for progress payments.

00301 - 5

Bidder hereby agrees that the Terms and Conditions of the Agreement under which the work will be executed will be those as specified in Division 1 of the Contract Documents.

Signature of Printed or Typed Name Printed or Typed Name Person Legally Authorized of Company to Enter into Contractual or Corporation Agreement For Bidder

Date Signed

MURPHY DAM OUTLET WORKS IMPROVEMENTS

5/27/2026 00301 - 6

BID ITEMS

IN DOLLARS AND CENTS

ITEM

NO.

DESCRIPTION UNIT ESTIMATED

QUANTITY

UNIT

PRICE

TOTAL

PRICE

01200-1 Mobilization, Demobilization and Preparatory Work

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-2 Bonds and Insurances

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-3 Care and Diversion of Water

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-4 Dewatering

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-5 Erosion and Sediment Control

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-6 Clearing and Grubbing

(Unit Price written in words)

Acre 0.5 $_________ $ ________________

01200-7 Select Demolition and Removal

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-8a Site and Earthwork - Stripping and Stockpiling of Topsoil

(Unit Price written in words)

Cubic Yard 300 $_________ $ ________________

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BID ITEMS

IN DOLLARS AND CENTS

ITEM

NO.

DESCRIPTION UNIT ESTIMATED

QUANTITY

UNIT

PRICE

TOTAL

PRICE

01200-8b

Site and Earthwork – Common Excavation

Cubic Yard

01200-8c

Site and Earthwork – Common Fill Placement and Compaction, Utilities Trench

01200-8d

Site and Earthwork – Common Fill and Placement, Slab-on-grade

01200-8e

Site and Earthwork – Rock Excavation / Trimming

01200-8f

Site and Earthwork – Backfill and Associated Grading Around New Structures

01200-8g

Site and Earthwork – Topsoil Placement, Seeding and Restoration

Acre

0.5

01200-9a

Concrete Construction – Cast-in-place concrete retaining wall and slab-on-grade along right wall of plunge pool

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ITEM

NO.

DESCRIPTION UNIT ESTIMATED

QUANTITY

UNIT

PRICE

01200-9b concrete operator deck, wall extensions

01200-9c concrete for liner extension encapsulation

01200-9d

Concrete Construction – Concrete repairs for headwall

Square Foot

01200-9e

Concrete Construction – Non-shrink Grout for Equipment Based and Anchors

Cubic Foot

01200- 10a

Mechanical Fabrications – Supply and Installation of Jib Crane Assembly

(Lump Sum Price written in words)

Lump Sum

NA

10b

Mechanical Fabrications – Downstream Conduit Liner Extension

11a

Hydraulic and Flow-Control Equipment – Fabricate, deliver and install new 72-inch Jet Flow Gates (2-units) complete with steel guides and seals

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BID ITEMS

IN DOLLARS AND CENTS

ITEM

NO.

DESCRIPTION UNIT ESTIMATED

QUANTITY

UNIT

PRICE

TOTAL

PRICE

01200- 11b

Hydraulic and Flow-Control Equipment – Supply and install hydraulic operators, actuators and control systems for Jet Flow Gates

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-11c Hydraulic and Flow-Control Equipment – Field testing and commissioning of gates and operators

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200- 11d

Hydraulic and Flow-Control Equipment – Ultrasonic flow meter system – supply, install and calibrate

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200- 12a

Building Rehabilitation – Control building roof replacement (asphalt shingles and flashing)

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200- 12b

Building Rehabilitation – Sheet metal trim, gutters and downspouts

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200- 13a

Miscellaneous – Chain-link fence installation

(Unit Price written in words))

Lineal Foot 320 $_________ $ ________________

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BID ITEMS

IN DOLLARS AND CENTS

ITEM

NO.

DESCRIPTION UNIT ESTIMATED

QUANTITY

UNIT

PRICE

TOTAL

PRICE

01200- 13b

Miscellaneous – Hand-rail, mounted to top of concrete

(Unit Price written in words))

Lineal Foot 250 $_________ $ ________________

01200- 14a

Operator Deck Radiant Heating System – Furnish, install and commission complete hydronic radiant heating system per Section 23 83 30.

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-15 Southern Access Road Improvements and Maintenance

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-16 Demolition and Removal of Dow Valves and Control Equipment

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

01200-17 Change Order Contingency Five-hundred Thousand Dollars (Lump Sum Price written in words)

Lump Sum NA NA 500,000

Alternate No. 1

Addendum No. 2 – Replacement of Existing Broome Gate Engine

(Lump Sum Price written in words)

Lump Sum NA NA $ ________________

Alternate No. 2

Building Rehabilitation – Broome gate tower roof replacement (asphalt shingles and flashing)

Lump Sum NA NA $ ________________

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ITEM

NO.

DESCRIPTION UNIT ESTIMATED

QUANTITY

UNIT

PRICE

Bid Price (Summation of Line Item Bid Prices including Alternates No. 1 and 2)

Bid Price (Summation of Line Item Bid Prices excluding Alternate No. 1)

Bid Price (Summation of Line Item Bid Prices excluding Alternate No. 2)

Bid Price (Summation of all Line Item Bid Prices excluding Alternates No. 1 and 2)

5/27/2026 00301 - 12

All specific cash allowances are included in the price(s) set forth above and have been computed in accordance with Article 9 of the General Conditions.

Unit Prices have been computed in accordance with paragraph 109.01B of the General Conditions.

Bidder acknowledges that estimated quantities are not guaranteed, and are solely for the purpose of comparison of Bids, and final payment for all Unit Price Bid items will be based on actual quantities provided, determined as provided in the Contract Documents.

Award of Alternate No. 1 and/or No. 2 will be at the sole discretion of the state and may be accepted or rejected independent of the Base Bid. Accepted Alternates will be identified in the Agreement.

Article 6 – TIME OF COMPLETION

6.01 Bidder agrees that the Work will be substantially complete on or before December 1st, 2028 and will be completed and ready for final payment in accordance with 109.06.10 of the General Conditions on or before December 31st, 2028.

6.02 Bidder accepts the provisions of the Agreement as to liquidated damages in the event of failure to complete the Work within the times specified above, which shall be stated in the Agreement.

Article 7 – ATTACHMENTS TO THIS BID

7.01 The following documents are submitted with and made a condition of this Bid:

A. Required Bid security in the form of Bid Bond (Specification Section 00310 – Bid Bond (Penal Sum), Payment Bond and Performance Bond, identified in Section 00200 – Instructions to Bidders in the form of a certified or bank check or bid bond;

B. List of Proposed Subcontractors;

C. List of Proposed Suppliers;

D. List of Project References;

E. Noncollusion Affidavit.

F. Proposed Schedule for Project Completion

5/27/2026 00301 - 13

Article 8 – DEFINED TERMS

8.01 The terms used in this Bid with initial capital letters have the meanings stated in the Form

P-37, Instructions to Bidders, the General Conditions, and the Supplementary Conditions.

Any conflicts in the definitions shall be resolved in the following order of precedence:

Form P-37, General Provisions, General Conditions, and Supplementary Conditions.

SUBMITTED on , 20 .

If Bidder is:

An Individual

Name (typed or printed):

By: (SEAL) (Individual’s signature) Doing business as:

Business address:

Phone No.: FAX No.:

An entity

Entity Name: (SEAL) Type of entity (partnership, corporation, limited liability company, other):______________ By:

(Signature -- attach evidence of authority to sign)

Name (typed or printed):

Business address:

Phone No.: FAX No.:

Provide notarized execution by any additional parties, such as joint venturers, if necessary.

NOTARIZED AFFIDAVIT

On this the ___ day of _________, 20__, before the undersigned officer, personally appeared ________________________(print name), ______________(title), who acknowledged himself to be the person who executed the foregoing instrument for the purpose therein contained.

IN WITNESS WHEREOF, I hereunto set my hand and official seal.

enter name notary public/JOP, select title

My Commission Expires:

______________________(date)

Attachment B

7-Day Rolling Average Water Temperature Graph (2025 Forebay at Murphy Dam)