Am0002.pdf

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 items 8 and 15, and returning or (c) By separate letter or electronic communication 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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

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

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

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

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

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.

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

Amendment No. 0002

Plunge Pool Repairs, Salt Creek, NE.

See attached documentation for content of the amendment revisions

Date for receipt of Bids is 14 September 2020 at 2:00 pm (local time)

Government Point of Contact: Nicole Parker, Contract Specialist (402) 995-2210

U.S ARMY CORPS OF ENGINEERS, OMAHA DISTRICT

CONTRACTING OFFICE

1616 CAPITOL AVE.

OMAHA, NE 68102-4901

See Item 6

W9128F20B0020

09/04/2020

08/14/2020

Am #0002 - 2 (Continuation of SF 30)

04 September 2020 Solicitation No. W9128F20B0020

Date of Issue: 14 August 2020 Date of Opening: 14 September 2020

SUBJECT: Amendment No. 0002 to Specifications and Drawings for Construction of Plunge Pool Repairs, Salt Creek, NE.

TO: Prospective Bidders and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Section 01 12 00 Page 3, paragraph 1.4 Care of Water: add to end of paragraph: “To reduce the risk of flow through conduit, the reservoirs will be lowered to at least 1.5 feet below the uncontrolled inlet elevation of the intake structures. To allow sufficient time for this drawdown, the Contractor shall inform the Contracting Officer a minimum 21 calendar days prior to mobilization to the project site.”

(2) Section 01 12 00 Page 5, paragraph 1.9 Submittals, add the following under SD-01 Preconstruction Submittals:

“Pre-Construction Survey; G-AO

Post-Construction Survey; G-AO

Pre-Construction Inspection Report; G-AO”

(3) Section 01 12 00 Page 4, paragraph 1.7.2 Haul Roads, add the following new subparagraphs:

“1.7.2.1 Embankment Crest Haul Road

The Dam the crest may be used utilized as a haul road with approval from the Contracting Officer. If the contractor elects to cross the crest of the dam at Sites 8, 9, 10, 12 and 13 with any equipment the Contractor will perform a pre-construction and post-construction survey, pre-construction inspection with Contracting Officer, and maintain access for government vehicles. The following subparts below outline these requirements. The embankment crest for Dam Site 4 is not permitted for use as a haul road, alternate access from West Sprague Road and along the right abutment groin and toe of dam is available to access the south side of the plunge pool.

1.7.2.2 Pre-Construction and Post-Construction Survey

Prior to the start of construction and following the completion of construction, a dam centerline profile survey shall be completed by the contractor using a licensed third-party surveyor (i.e. a pre-construction survey and post-construction survey). The centerline profile surveys shall be completed on the centerline of dam crest in the vicinity of all work areas, access routes, hauls roads, and any other areas that may be impacted by work.

Horizontal and vertical information shall be obtained at approximately 50-

Am #0002 - 3 foot intervals and in a manner that is reproducible between the pre-construction and post-construction surveys. Record survey data in reference to horizontal datum Nebraska State Plane NAD83 and vertical datum North American Vertical Datum NAVD88. The Contractor shall provide the raw survey data to USACE in the form of ASCII text or spreadsheet files, as well as provide a profile plot in pdf format of the data. The post-construction survey plot shall show both the pre-construction and post-construction data and clearly note any deviations between the two surveys of greater than 0.1'.

The Contractor shall repair any location that deviates more than 0.1' between the pre-construction and post-construction survey to pre-construction survey elevation. The crest will be resurfaced with gravel meeting the gradation requirements in Specification 31 00 00 Earthwork paragraph 2.3.

1.7.2.3 Pre-Construction Inspection

Prior to start of any on site construction activities, the Contractor and the Contracting Officer shall jointly make a pre-existing condition inspection of all work areas and the dam crest. The inspection shall be visually recorded (still pictures and/or video) and shall consist of reviewing the area within the project limits, and adjoining areas which the contractor may access during construction. The inspection shall specifically record all existing damage to vegetation, earthwork, structures, roads, and other pre-existing damage in order to establish condition of areas prior to the commencement of construction activities. The contractor shall furnish and operate all video recording devices required in order to accurately reflect current conditions.

Immediately following the inspection, the Contractor shall prepare a brief report including a plan describing the features requiring protection. This report shall be signed by both the Contractor and the Contracting Officer upon mutual agreement as to its accuracy and completeness. A copy of this report, as well as an electronic copy of the pictures and video capturing the pre-existing condition will be provided to the government. This inspection will establish the baseline for damages identified upon acceptance inspection(s) by the government for which the contractor is not responsible for restoration. All other damages identified during the acceptance inspections will be repaired to pre-existing condition by the contractor at no additional cost to the government.

1.7.2.4 Maintain Crest Road Access

If the Contractor elects to use the dam crest for a haul road at Dam Sites 8, 9, 10, 12, and 13, it shall be continuously maintained during hauling to ensure access is available along the dam crest by government vehicles.”

(4) Section 01 22 00 Page 10, Part 5 ALL REMAINING WORK, subparagraph 5.1 Work Included: after “haul road repair;” add “pre-construction survey; post-construction survey; pre-construction inspection; repair of embankment crest (if utilized as haul road);”

(5) Section 31 00 00 Page 10, add the following new subparagraph:

“2.3 Material for Embankment Crest Road Surfacing

Crest road embankment will be re-surfaced with gravel within the gradation limits shown below:

Am #0002 - 4

Sieve Designation Percent Passing 3 inch 100 1 1/2 inch 70-100 3/8 inch 35-50 No. 4 20-40 No. 10 15-30 No. 40 10-20 No. 200 8-12 “

(6) Section 31 00 00 Page 16, paragraph 3.13 UTILIZATION OF

EXCAVATED MATERIALS, add the following text to the end of paragraph: “Excavated satisfactory material suitable for filling or backfilling may be disposed at the designated borrow sites shown on the drawings with approval of the Contracting Officer or disposed of off-site at Contractor’s expense. If soil material is disposed of at designated borrow sites, the surplus soil must be disked into the existing soils a minimum 12 inches, the site graded to provide drainage, and seeded with Seed Mix B as described in Specification 32 92 19.”

(7) Section 31 00 00 Page 18, delete paragraph 3.17 DISPOSITION

OF SURPLUS MATERIAL and substitute the following:

“3.17 DISPOSITION OF SURPLUS MATERIAL

Unsatisfactory material or other soils not suitable for filling or backfilling, and vegetation, brush, refuse, stumps, roots, and other organic materials stripped as part of site preparation work must be disposed of off-site at the Contractor's expense. Excavated riprap material shall be disposed off-site at the Contractor’s expense. Satisfactory material shall be disposed as specified in subpart 3.13. All disposal activities must meet Federal, State, and local laws and regulations. “

(8) Section 31 24 50 Page 2, paragraph 1.2 SUBMITTALS, add the following submittal under SD-06 Test Reports: “Test Report for Freezing and Thawing; G-DO”

(9) Section 31 24 50 Page 4, paragraph 1.6.3.3 Soundness of

Freezing and Thawing, add Submittal text to end of paragraph: “The submitted certified test report will be performed not longer than 12 months prior to delivery to the project.”

b. Drawings (Not Reissued). The following drawings are revised as indicated below with latest revision date of 04 September 2020. These drawings are not reissued with this amendment.

(1) Sheet GR001, Under GENERAL NOTES, revise Note 1 to read as follows: (Changes are in red)

“1. ACCESS ROUTE AND HAUL ROADS·

ACCESS THE CONTRACT WORK AREAS AS INDICATED ON SHEETS G-008 THROUGH G-013,

UNLESS OTHERWISE APPROVED BY THE CONTRACTING OFFICER'S REPRESENTATIVE (COR).

SECURE ALL ACCESS POINTS EACH TIME THEY ARE USED FOR VEHICLES/EQUIPMENT

ENTERING OR LEAVING THE WORK AREAS. ALL WORK AREAS ARE ON GOVERNMENT

PROPERTY. ACQUISITION OF RIGHTS-OF-ENTRY TO ENTER THE PROPERTY ARE NOT

REQUIRED. RE-ESTABLISH TEMPORARY HAUL ROADS TO PRECONSTRUCTION CONDITIONS

Am #0002 - 5

UPON COMPLETION OF THE WORK AS INDICATED IN PARAGRAPH 1.6.2 IN SPECIFICATION

SECTION 31 00 00. UTILIZE THE DAM GROINS AND DOWNSTREAM TOE OF THE DAMS AS

MUCH AS PRACTICABLE FOR HAUL ROUTES. SPECIFIC APPROVAL TO USE THE CREST OF

THE DAM AS A HAUL ROUTE IS REQUIRED BY THE COR FOR DAM SITES 8, 9, 10, 12,

AND 13. ALTERNATE ACCESS FOR DAM SITE 4 IS PROVIDED FROM WEST SPRAGUE ROAD TO

ACCESS THE SOUTH SIDE OF PLUNGE POOL. HAUL ROAD LOCATIONS TO AND FROM BORROW

LOCATIONS AND/OR STOCKPILES MUST BE APPROVED BY THE COR PRIOR TO BEGINNING

WORK. PRE-CONSTRUCTION AND POST-CONSTRUCTION HAUL ROUTE CENTERLINE PROFILE

GROUND SURVEYS AND HAUL ROUTE PHOTOGRAPHS MUST BE TAKEN FOR EACH BORROW AREA

USED. SEE SPECIFICATIONS 01 12 00 REGARDING PRE-CONSTRUCTION AND POST-

CONSTRUCTION REQUIREMENTS FOR HAUL ROADS UTILIZING THE CREST OF THE DAM. IF

THE CONTRACTOR ELECTS TO USE THE DAM CREST FOR A HAUL ROAD, IT SHALL BE

CONTINUOUSLY MAINTAINED DURING HAULING TO ENSURE ACCESS IS AVAILABLE ALONG

THE DAM CREST BY GOVERNMENT VEHICLES. THE CONTRACTOR SHALL REPAIR ANY

LOCATION TO THE EMBANKMENT CREST AND HAUL ROAD THAT DEVIATES MORE THAN 0.1'

BETWEEN THE PRE-CONSTRUCTION AND POST-CONSTRUCTION SURVEY TO PRE-CONSTRUCTION

SURVEY ELEVATION.”

c. Drawing (Reissued). The following drawingis revised with latest revision date of 04 September 2020, and reissued with this amendment.

(1) Sheet G-008.

2. This amendment is a part of the bidding papers and its receipt shall be acknowledged. All other conditions and requirements of the specifications remain unchanged. If the bids have been mailed prior to receiving this amendment, you will notify the office where bids are opened, in the specified manner, immediately of its receipt and of any changes in your bid occasioned thereby.

a. See Section 00 21 00, paragraph GENERAL BIDDING INFORMATION, on how to submit electronic bids.

3. Electronic bids will be received until 2:00 p.m., local time at place of bid opening, 14 September 2020.

Attachments: Drawing listed in 1.c above

U.S. Army Engineer District, Omaha Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

04 Sept 2020

MFS/2184