P16PS01390_AMENDMENT_0002.pdf

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P16PS01390

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1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT

THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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PDS

Denver CO 80225-0287 P.O. Box 25287 12795 W. Alameda Pkwy DOI, NPS, DSC Contracting Services

PDS

Denver CO 80225-0287 P.O. Box 25287 12795 W. Alameda Pkwy NPS, DSC Contracting Services Div

CHOH 15069607/25/2016000002

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

07/25/2016

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not, is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of this amendment is to:

A) Incorporate the attached list of Questions and Answers.

All other terms and conditions remain unchanged.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Pamela Mault

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

NSN 7540-01-152-8070

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

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QUESTIONS AND ANSWERS

SOLICITATION P16PS01390, AMENDMENT 0002

1. What is the approximate depth of the sediment build up within the canal?

Depth of sediment varies. Please refer to the Geotechnical Engineering Report included in Project Specifications - Volume 1 of 3.

2. Please confirm the unit of measure of Lock #4 bid item 34 to be CY.

Unit of measure is Cubic Feet (CF) per Section 01 27 00 Definition of Contract Line Items

3. There are surface features that could be impacted by the excavation to parge the backside of the breast wall. Please define the total depth that must be excavated behind the breast wall to apply mortar parging.

Parging of the backside of the breast wall is to be the entire height of the wall.

Approximate height of the breast wall can be determined from elevations shown on S202. Surface features are called to be temporarily removed for excavation to parge the backside of the breast wall on S101 & S301.

4. Article H.5 Key Personnel ( page 21 of 161) of the Solicitation, Offer and Award, does not indicate to provide an "Environmental Manager". However, (TAB C) FACTOR 3 (page 154 of 161) indicates to provide an "Environmental Manager". Please confirm if the Proposers are to provide an Environmental manager and if this person can also be the Quality Control Manager. Also, please confirm if the Quality Control Manager and the Environmental Manager must be full time.

QC Manager and Environmental manger duties can be combined. Postion shall be full time. Please refer to Project Specification-Volume 1 of 3, Section 01 40 00, Paragraph 1.5.B.1 and 2, "QC Supervisors may also perform other duties…..and shall be on the project site whenever contract work is in progress".

5. Concepts on drawings indicate that the filter bags are on the wet side of the gabion sediment barrier. We assume that these bags need to be removed at the end of the project. Please confirm.

All Sediment and erosion control measures indicated on sheets C104, C105, & C106, including the filter bags are to be removed at the end of construction.

6. The specifications call for both concrete curb and steel restraints for the brick paving.

Please confirm the location of each.

Concrete curb shall be used throughout the project. Refer to Open Joint Brick Pavers on sheet C403.

7. The construction access road and staging area detail reads in part "....construction staging and storage with lock 3 and basin area, use HDPE geomembrane only." Should this instead read "...within the lock 3 and basin area"?

Correct.

8. There is a sign for the Foundry Building which hangs over benches which are marked for removal and reinstallation. Please confirm that this sign is not to be disturbed.

Existing sign is to remain.

9. This sheet shows a planter to be removed and reinstalled in the Southeast corner of the site, however there is no detail indicating the reinstallation of this planter. Please confirm that this bench will require a concrete pad foundation.

Planter wall to be reinstalled to match existing construction. Bench should not require a concerete pad foundation.

10. We assume that a dry work area within the canal will have to be established at lock 4 to perform line item #35. Please confirm.

NPS is diverting canal flow upstream of work area so Lock #4 should be mostly dry for construction. Localized efforts may be required to create dry work areas at base of wall.

Please also refer to the Geotechnical Engineering Report in the Project Specifications- Volume 1 of 3, for subdrainage recommendations for handling of groundwater during construction.

11. Demo note 2 calls for the existing steel tube railing to be disposed of and replaced with new steel tube railing, however the detail for this railing seems to be missing.

Please confirm.

Railing shall match the existing 1-1/14" pipe tube railing. Railing to be painted.

12. Please advise if we are to remove any existing organic material from the canal. Is the HDPE geomembrane to be placed above the organic material?

No organic material is removed within the "Level 3" area where construction staging and storage is proposed. The HDPE liner is to be placed on top of the organic material for stagin and storage as necessary. All organic material is required to be removed within the "Lock 3" area as necessary to remove the existing wood foundation and replace with a new foundation.

13. The drawing shows a stone storage location on the job site, is it possible to store stone off the site?

Limited off site storage has been indicated for new stone. See Sheet 46 - S313.

14. The mitered timber gates are called out to be made out of Southern pine, but the project also is subject to Buy America requirements. We have read that there are Buy America exceptions made for this project that permit materials sourced from WTO countries and that Free Trade Agreements apply. As a result, we have found that many manufacturers who make mitered timber canal gates are located in Europe. Are there any specific, domestic manufacturers that NPS had in mind to fabricate the gates?

Additionally, is it possible to manufacture the gates out of another wood used traditionally in canal gates since Southern Pine is not found in Europe?

Different wood types may be acceptable as long as properties are comparable and pending approval of the NPS.

15. At the pre-bid meeting, it was stated that the canal flow would be diverted by the NPS upstream and the contractor would only be responsible for local water since the canal would be "mostly dry." Where exactly will the diversion take place and what will be the approximate flow rate of the local water left in the canal?

The diversion takes place approximately 5 miles upstream. Determination of a flow rate is not possible but the work area will be mostly dry. Any drainage that may enter the Canal during the Construction phase of the project through local sheet flow is not quantified. The use of the cofferdam, sump pit, and pump system indicated on sheet C104 is necessary to keep upstream drainage from entering the work area during construction and is the contractor's responsibility. Please also refer to the Geotechnical Engineering Report in the Project Specifications-Volume 1 of 3, for subdrainage recommendations for handling of groundwater during construction.