A.07.24_W9127N-17-R-0008_Amendment_0003.pdf

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

PROJECT TITLE: MOUTH OF THE COLUMBIA RIVER (MCR) NORTH JETTY REHABILITATION

1. This Amendment is issued to revise Division 35 - Waterw ay and Marine Construction technical specification section 35 31 26.40 25 paragraphs 3.1.7 and 3.1.8.

2. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY 11-Apr-2017

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 W9127N-17-R-0008

X 9B. DATED (SEE ITEM 11)

24-Mar-2017

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 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 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

11-Apr-2017

CODE

USACE PORTLAND DISTRICT

333 SW 1ST AVE

PORTLAND OR 97204-3440

W9127N 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W9127N-17-R-0008

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

(End of Summary of Changes)

Mouth of the Columbia River North Jetty Rehabilitation 2017

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 10 00.00 25 CONTRACT ADMINISTRATION DATA

01 10 10.00 25 CONTRACTOR'S OPERATIONS AND REQUIREMENTS

01 11 00.00 25 SUMMARY OF WORK

01 22 00.00 25 MEASUREMENT AND PAYMENT

01 32 01.00 25 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 35 26.00 25 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.00 25 QUALITY CONTROL

01 45 00.10 25 QUALITY CONTROL SYSTEM (QCS)

01 57 19.00 25 TEMPORARY ENVIRONMENTAL CONTROLS

01 78 39.00 25 PROJECT RECORD DOCUMENTS

DIVISION 31 - EARTHWORK

31 11 00.00 25 CLEARING AND GRUBBING

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 12 16.00 25 HOT-MIX ASPHALT (HMA) FOR ROADS

32 31 29.13 25 SAND FENCING

32 90 00.00 25 SITE RESTORATION

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 31 26.40 25 JETTY REPAIRS

35 52 00.00 25 MATERIAL OFF-LOADING FACILITY CONSTRUCTION

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1

SECTION TABLE OF CONTENTS

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 31 26.40 25

JETTY REPAIRS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 DEFINITIONS

1.3.1 Armor Layer

1.3.2 Core

1.3.3 Cross Section

1.3.4 Jetty Features

1.3.4.1 Crest

1.3.4.2 Head

1.3.4.3 Root

1.3.4.4 Trunk

1.3.5 Toe Berm

1.4 WORKING ENVIRONMENT

1.4.1 Site Related Weather and Tidal Conditions

1.4.2 Managing Work to Match Weather and Oceanographic Conditions

1.5 STONE DELIVERY

1.5.1 Barge Delivery

1.5.2 Truck Delivery

1.6 QUARRY

1.6.1 General

1.6.2 Sampling, Testing, and Acceptance of Stones

PART 2 PRODUCTS

2.1 SOURCES

2.1.1 General

2.1.2 Stone Quality and Acceptance

2.1.3 Testing Requirements

2.1.4 Stone Classification

2.1.5 Testing Frequency

PART 3 EXECUTION

3.1 JETTY REPAIR FEATURES

3.1.1 General

3.1.2 Jetty Access

3.1.3 Identification of Repair Areas

3.1.4 Variable Repair Areas and Re-handling Existing Jetty Armor Stone

3.1.5 Protection of Existing Tidal Overflow Area

3.1.6 Root Repair and Transition Section, Station 16+50 to 20+00

3.1.7 Jetty Repair Section, Station 20+00 to 40+00

3.1.8 Jetty Repair Section, Station 40+00 to 98+50

3.1.9 Jetty Head Extension Section, Station 98+50 to 99+00

3.1.10 Final Jetty Head, Station 99+00 to 102+00

3.2 EQUIPMENT

3.2.1 Hauling Equipment

3.2.2 Placing Equipment

3.3 PERSONNEL

SECTION 35 31 26.40 25 Page 1

COR in order to agree on the prioritization of areas to be repaired within a given reach before repair activities have started.

3.1.4 Variable Repair Areas and Re-handling Existing Jetty Armor Stone

Reworking of existing jetty stone will be required to place, interlock, and seat new jetty stone within the repair cross section template. The present damage trend along the repair area is highly variable; some reaches will require significant amount of new armor stone (>2,000 tons/50-ft segment) to re-establish the jetty cross-section and some reaches will need minor repairs (<200 tons/50-ft segment). Because of the variable damage within the project area, many repair areas may require considerable reworking of existing jetty stone to achieve requisite interfacing with new repair armor stone. Cannibalizing "healthy" jetty areas for the purpose of filling in damaged areas will be prohibited.

3.1.5 Protection of Existing Tidal Overflow Area

A Tidal Overflow Area exists on the north side of the jetty between approximately stations 18+50 and 20+00 and is located at elevation +6' NAVD88. The existing access road along the jetty root is at elevation +15' NAVD88 from station 16+00 to 28+00 except at the Tidal Overflow Area.

As-builts of this feature are attached to this contract. This feature must be avoided.

3.1.6 Root Repair and Transition Section, Station 16+50 to 20+00

a. A jetty access ramp is allowed to be constructed somewhere between Station 16+50 and 18+50 to provide access of equipment on top of the jetty crest with interlocked side slopes. Place stone to a crest elevation +20.0 ft NAVD88, and a crest width of 30 feet.

b. Transition the repair template elevation between station 19+00 and 20+00 from +20 feet to +25 feet NAVD88. Move and rearrange existing jetty stone as necessary to allow keying in the new stone to form a tight knit, smooth transition from the existing structure to the new work with no protrusions, notches, or sharp slope changes. Place C-stone in this section.

3.1.7 Jetty Repair Section, Station 20+00 to 40+00

Place C-stone in this section. The toe stones in this section must be the 40% to 60% size or larger. Place stone to a crest elevation +25.0 ft NAVD88, and a crest width of 30 feet. Place the armor stone with a finished side slope of 1v:1.5H as shown on the drawings. The repair transition to existing side slopes must be smooth with no protrusions, notches, or sharp slope changes.

3.1.8 Jetty Repair Section, Station 40+00 to 98+50

a. Place B-stone in this section. Repairs in this section consist of small holes in the side slopes and are identified on the plan view drawings within the red boundary and are shown on Sheet CS001 Typical Section 1. Place the armor stone with a finished side slope of 1V:1.5H as shown on the drawings. The repair transition to existing side slopes must be smooth with no protrusions, notches, or sharp slope changes.

b. Between stations 60+50 and 63+00, on the north side, sand will be encountered within repair areas where armor stone must be placed. In

SECTION 35 31 26.40 25 Page 22 these areas, excavate the sand away from the existing jetty stones to elevation +5 feet NAVD88. Fill the excavated areas with jetty crest haul road material to elevation +15 feet NAVD88 to create a base for the armor stone, ensuring jetty stone voids are filled as much as practicable. Place the armor stone with a finished side slope of 1V:1.5H to create a finished 30-foot wide crest width at elevation +25 feet NAVD88.

3.1.9 Jetty Head Extension Section, Station 98+50 to 99+00

Between stations 98+50 and 99+00, a jetty head extension must be advanced to transition to the head. Place A-stone with a finished side slope of 1V on 2H, crest width of 40 feet at elevation +25.0 feet NAVD88. Relic armor stone above the final crest elevation in this area must be removed and reused as indicated in the drawings.

3.1.10 Final Jetty Head, Station 99+00 to 102+00

a. Use A-select stone to construct a toe berm with a top width of 18 feet at elevation +6.5 feet NAVD88. The toe berm transitions between station 99+00 and 100+00 from 0 to 18 feet.

b. Use A-stone to construct a head section with a crest width of 40 feet at elevation +25.0 NAVD88 and 1V:2H side slopes. The jetty head will also have a centerline offset to the north (clockwise rotation is at station 99+00 and is not to exceed 3 degrees as shown on the drawings). Build side slopes, including the outer or western end of the repairs, to a stable 1V:2H slope configuration. A minimum of two layers of new armor stone is required. The elevation of the existing relict base stone will vary but on average is level at -5.5 feet NAVD88 from neat lines shown on the drawings. The lowest elevation for new armor stone placement may extend to approximately -6 feet NAVD88. Seat and interlock the new repair stone with the existing stone base.

c. The repair work in the head section is intended to provide a tightly interlocked mass of repair stone which slopes down to the existing stone base and ties the new repair section into the seaward extent of existing stone.

3.2 EQUIPMENT

3.2.1 Hauling Equipment

Plainly mark all hauling equipment with numbers. Weigh empty vehicles at least once a day and at any time after the equipment is modified or repaired in a manner that could affect its weight. The tare weight thus determined will be deducted from the gross weight to determine the net weight of the stone.

3.2.2 Placing Equipment

a. Placing equipment must be capable of placing jetty stone individually without dropping the stone and in such a manner to not displace the underlying material. Stone placing equipment must have adequate safe capacity to repair the jetty to the lines, grades, and slopes shown. Size of equipment should include consideration for handling overweight stones for both newly placed and existing jetty armor stone. Note that the size of some of the existing armor stones presently on the jetty may exceed 30 tons. The selected equipment must

SECTION 35 31 26.40 25 Page 23