24Q0041 0002 Amendment.pdf

W81G6733536932

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to add a question and answ ers section.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 4

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

16C. DATE SIGNED

BY 30-Jan-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912ES24Q0041

X 9B. DATED (SEE ITEM 11)

19-Jan-2024

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer 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 Items 8 and 15, and returning 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 ACKNOWLEDGMENT 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.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

30-Jan-2024

CODE

CONTRACTING DIVISION

USACE, ST PAUL

332 MINNESOTA STREET

SUITE E1500

ST PAUL MN 55101-1323

W912ES 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912ES24Q0041

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been modified:

QUESTIONS & ANSWERS

Amendment 0001 Q1. We would like to use hollow tube for the vertical lifting posts that will bolt to the skid base and be welded to the lifting bar assembly, and also for fork tubes which will help support the entire structure. These will be fully open on both ends ensuring full drainage and galvanization. These are both for structural integrity design preferences over flat bar and channel. Can these be approved deviations from your spec sheet?

A1. If all ends are fully open to prevent the water from being trapped and ensure galvanizing reaches those surfaces, that is acceptable construction method.

Q2. Is the 10,000 lb WLL for each individual lifting eye or for both eyes combined?

A2. The 10,000 lb WLL is the desired capacity of the entire skid and therefore is the needed rating of both eyes combined.

Q3. Can you approve welded lifting eyes and stainless steel shackles in place of the stainless steel swivel eyes?

We’re looking at simplification and cost reduction here, as the swivel eyes are quite costly if the infinite lifting eye angles are not required for achieving proper sling angles.

A3. It is acceptable to go with the stainless-steel shackles. The concern is that the bearings in the swivel eyes are going to be submerged therefore requiring regular replacement. In this application, either a hole in the beam for the shackle pin OR a fixed lifting eye assembly that bolts onto the rigging beam is acceptable. Either of the above outlined picking point options can be used in conjunction with the stainless shackle.

Q4. What is your required clearance from the skid floor to the bottom of the lifting bar?

A4. Skid floor to bottom of the beam dimension is 72” as stated in SOW. I see that there could be confusion on this after looking at the supplied drawing as it shows what looks like 72” from the ground to the bottom of the rigging beam. The correct dimension is 72” from the skid floor to bottom of rigging beam.

Q5. Do you have an overall height restriction from ground to the absolute top of the platform lifting bar?

A5. Yes, 84” from ground to beam.

Q6. In regard to your given skid dimensions LxW, is there any leeway beyond the 1” min/max difference to allow for the lifting posts bolting to the base, and some structural pockets we intend to use for securing the posts to the base? Furthering this question, are you limited to the 96” x 54” as a maximum footprint due to spatial constraints, and the 95” x 53” as a minimum skid footprint allowing accommodation of all your various pumps?

A6. 96” x 54” MAX is a spatial constraint. All skid components shall fit inside this dimension. The skids can not be larger than this due to the size of the concrete sumps in the floor of the lock chambers. These skids are being sized exactly to fit within those sump walls while also being as large as possible to accommodate the various possible pump configurations. We need the most leeway there possible as it directly affects dewatering capabilities when in operation. To allow for rigid brackets and hardware by the builders, we will increase the min/max difference to 3”. The resulting new minimum dimension of the skid base is 93” long x 51” wide.

Q7. Do you have a maximum distance preference from the ground to the skid floor? We are planning on an I-beam frame, W8x18 with ½” plate as our preferred base/floor design. I’m not sure if your objective is to get the pumps down in the muck as close to the river bottom as possible or if you have some leeway here.

A7. 4” max skid base thickness. This is ample room to allow for fork pockets. The base need be only as thick as necessary to house the fork pockets & meet the load rating of 10,000 lbs. As stated above, our overall lifting skid height should be under 84”. We need to keep the overall height to the picking beam as low as possible to ensure personnel won’t require the use of ladders when rigging the skid during crane operations. With 72” between the skid floor and the bottom of the rigging beam, that only leaves 12” of height to be consumed by rigging beam and base. 4” max base height leaves 8” for rigging beam height.

Amendment 0002

Q8. For a 10,000 lb. WLL we prefer to dedicate more room for both the floor and the lifting beam design.

A8. This is a custom build for a specific purpose. The dimension specifications and 10,000 lb weight rating must be adhered to meet the needs of the equipment application.

Q9. In regard to the height of the lifting beam: we can eliminate the use of a ladder to reach the beam connection to load line by the use of a two-leg wire rope sling assembly with master link. This will lower the height required to attach to the load line to the height of the master link in a resting position. The length of the two-leg sling can provide the safe height. The wire rope can be stainless if required. Is this acceptable?

A9. The rigging arms attaching the rigging beam to the skid floor must be rigid in design. Wire rope configurations are not allowed. This specification shall be adhered to as the entire assembly will be attached under the waterline by divers and rigid rigging on the assembly is required in this application.

Q10. In regard to the floor: to achieve a safe design for the 10,000 lb. capacity we prefer to design with a beam structure, as tube is unusable for this frame in this application. This will will make the floor taller than 4”. Is this acceptable?

A10. The floor base height may not exceed 4” in the provided design. The pumps need to be rigged on the skid as low in the pumping sump as possible in our application of this equipment.

Q11. I believe the original lifting platforms transferred much of the weight forces into the pump housings, which appear to be bolted to both the floor and the lifting beam. I do not believe this is the case with the new proposed design. All load will be carried by the platform floor, transferred into the lifting arms and lifting beam. Do I understand this correctly?

A11. Yes, all load will be carried by the platform floor and transferred into the lifting arms to the lifting beam.

Q12. Within the dimensions allowed it is going to be hard to get anything for the lifting beam structure that is designed to be removable/pinnable at only 1.5” on each side. It certainly will have little to no integrity in side loading and will easily bend if done so. Vertical pull only would be fine, as that is just a product of cross-sectional area. This is where we had originally planned on 3” square steel tube for the lifting posts.

A12. The dimensions provided are the MIN/MAX specifications for the skid floor. All components of the assembly must fit withing the Maximum dimension to fit inside the rectangular concrete pumping sumps the equipment will be used in. The lifting skid floor outside dimensions must meet the Minimum dimensions in size. The lifting arms may be extended inward inside the specified footprint as necessary to be appropriately sized for the load. We understand that to size them appropriately, the arms attachment locations will need to be recessed into the skid footprint.

Q13. Is there any way to gain more space for the vertical lifting posts of the pinned on lifting beam structure?

A13. No there is not. Four inches (4”) are allowed for skid base ground to top of skid floor height. Skid floor to bottom of lifting beam must be seventy-two (72”). Overall height of entire assembly cannot exceed eighty-four (84”) from ground to the top of lifting beam.

Q14. Q7 and A7 state that the thickness is 4" max, is that the framing height? also, does the skid need a steel plate on it or is an open-top okay as long as it meets the requirements stated in A7?

A14. 4” max is from the ground to the top of the base. Any design that allows that as long as it can be picked with fork truck. We didn’t outline exactly how the fork pockets are accomplished, just that the skid have them and max skid base thickness is 4”. The floor of the base should be steel plate and we specified that it have a pattern of drilled holes in the SOW to allow for mounting different pump configurations. It should not be open areas as the originals were.

(End of Summary of Changes)