W911KB21B0006 Amendment 1.pdf

CHL026

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 update the draw ings and documents as described in the attached Summary of Changes, to include the notes and sign in sheet from the pre-bid site visit on July 15, 2021 and to respond to 9 Bidder Inquiries.

The point of contact for this amendment is Jennifer Gosh at Jennifer.Gosh@usace.army.mil.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY 22-Jul-2021

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 W911KB21B0006

X 9B. DATED (SEE ITEM 11)

06-Jul-2021

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

22-Jul-2021

CODE

U.S. ARMY ENGINEER DISTRICT, AK

CEPOA-CT (W911KB)

PO BOX 6898

JBER AK 99506-0898

W911KB 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SUMMARY OF CHANGES

W911KB21B0006

AMENDMENT #0001

• The following drawings are substituted for the superseded drawings:

Drawing Sheet C-301 is replaced in its entirety.

• The following revised documents are substituted for the superseded documents. The identifier “AM#2” appears before and after new and/or revised material and replacement pages are provided, except as noted:

SECTION 01 20 00, PRICE AND PAYMENT PROCEDURES, reissuing pages 4-5. Paragraph 1.5.3.1 revised.

SECTION 01 50 00, TEMPORARY CONSTRUCTION FACILITIES

AND CONTROLS, reissuing pages 7-8. Revised paragraphs 3.3.1 and 3.3.2.

SECTION 35 31 19, STONE, CHANNEL, SHORELINE/COASTAL

PROTECTION FOR STRUCTURES, reissuing pages 4-5. Paragraph 3.2 revised.

• The following documents/drawings are deleted:

NONE

• The following documents/drawings are added:

Drawing Sheet C-102 is added with a 25’ right offset alignment.

• The following revisions are incorporated:

• Other:

NONE

- Notes and sign-in sheet from the pre-bid site visit on July 15, 2021 are provided.

- Electronic files for the topographic and hydrographic survey conducted on June 14, 2021 are available upon request. Please contact Donna West by email at Donna.L.West@usace.army.mil.

W911KB21B0006

(End of Summary of Changes) mailto:Donna.L.West@usace.army.mil

R0001 Repair Tanana Sill Groin CHL026 North Pole, Alaska lieu of scale weights at the jobsite.

1.5.1.3 Unit of Measure

Unit of measure: Ton 2,000 pounds.

1.5.2 Surveys Line Item 0003

1.5.2.1 Payment

Payment will be made at the contract unit price for performing preconstruction and post construction surveys and producing the survey deliverable when the survey meets the requirements of Section 31 09 13.00 29 SURVEYS (CIVIL WORKS). Unit prices for surveys will not be subject to adjustment under Contract Clause 52.211-18 VARIATION IN ESTIMATED

QUANTITIES.

1.5.2.2 Measurement

Measurement will be in units of one completed and accepted final survey deliverable in accordance with Secion 31 09 13.00 29 SURVEYS (CIVIL WORKS).

1.5.2.3 Unit of Measure

Unit of Measure: Each

1.5.3 Additional Stockpiled Rip Rap Line Items 0011 Through 0015

1.5.3.1 Payment

Payment will be made for all costs and activities associated with stockpiling additional Class IV rip rap in the quantities indicated in Line Items 0011 through 0015 to include production, testing and transport of the rip rap as specified. Unit prices for stockpiled rip rap will not be subject to adjustment under Contract Clause 52.211-18 VARIATION IN ESTIMATED QUANTITIES. AM#1. . . Cost s associ at ed wi t h r oad i mpr ovement s at t he st ockpi l e l ocat i on shal l be i ncl uded i n t he uni t cost f or Li ne I t em

0011....AM#1

1.5.3.2 Measurement

Measure stockpiled rip rap for payment by the ton (2,000 pounds) by weighing each truckload to the nearest 200 pounds and the final quantity of the whole sum rounded to the nearest whole ton. Weigh the riprap for payment on approved scales before being placed in the work. Use scales of sufficient length to permit simultaneous weighing all axle loads. Scales must be inspected, tested and sealed as directed to assure accuracy with

0.5 percent throughout the range of the scales. Certify scales located at the site of the work as to accuracy by an acceptable scales company representative prior to weighing any riprap. Scales will be checked and certified before riprap hauling and rechecked and recertified whenever a variance is suspected. If commercial scales are readily available in close proximity, within 30 miles of site of work, the Contracting Officer may approve the use of the scales. Weigh riprap in the presence of the Government representative. The Contracting Officer may elect to accept certified weight certificates furnished by a public weighmaster in lieu of scale weights at the jobsite.

SECTION 01 20 00 Page 4

1.5.3.3 Unit of Measure

Unit of Measure: Ton (2,000 pounds)

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

-- End of Section --

SECTION 01 20 00 Page 5

3.3 TRAFFIC PROVISIONS

3.3.1 Traffic Control

Complete closure of Moose Creek Landing Road from the Richardson Highway to the Tanana Sill Protection Groin will be permitted during construction.

Provide a Traffic Control Plan for Government approval that identifies the proposed closure period and controls to restrict traffic access to Contractor and Government vehicles only. AM#1. . . The cont r act or i s r esponsi bl e f or mai nt ai ni ng Moose Cr eek Landi ng Road and t he Gover nment access gat es t hr oughout t he const r uct i on per i od. . . . AM#1

Contractor operations may not close any other thoroughfare or interfere with traffic on railways or highways. The Contractor may move oversized and slow-moving vehicles to the worksite provided requirements of the highway authority have been met.

Provide cones, signs, barricades, lights, or other traffic control devices and personnel required to restrict traffic on Moose Creek Landing Road.

3.3.2 Haul Roads and Loading Ramps

Moose Creek Landing Road is the designated haul route to the Tanana Sill Groin. The use of any other existing roads for hauling must be coordinated with Federal, State and Local agencies. It is the Contractor's responsibility to acquire all permits and easements for use of existing roads or for construction of new haul roads or loading ramps.

The stockpile site AM#1...may...AM#1 require road improvements and construction of a truck route to facilitate traffic flow during stockpile operations. All road improvements at the stockpile location may remain upon completion of the project.

AM#1. . . Gr avel may be pl aced on t he exi st i ng gr oi n r i pr ap t o f aci l i t at e access f or const r uct i on and may r emai n upon compl et i on of t he project...AM#1 Any other haul roads or loading ramps built within the project area, must be removed to the satisfaction of the Contracting Officer. Any existing roads must be left in as good condition as when work started.

3.3.3 Dust Control

Dust control methods and procedures must be approved by the Contracting Officer. The Contractor must maintain embankments, stockpiles, haul roads, permanent and temporary access roads, and all other work areas within or outside the project boundaries free from dust which would cause a hazard or nuisance. Sprinkling or similar methods must be employed to control dust. Dust control must be performed as the work proceeds and whenever a dust nuisance or hazard occurs. There must be no visible dust coming off the work site at any time, or from any vehicle hauling for the contractor.

In addition the contractor must ensure that no material of any type will fall off any vehicle while in transit. Any dirt or mud, which is tracked onto paved or surfaced roadways, must be cleaned away within the day it is deposited. No separate or direct payment will be made for dust control and the cost thereof will be considered incidental to and included in the contract price.

SECTION 01 50 00 Page 7

3.4 CONTRACTOR'S TEMPORARY FACILITIES

Contractor is responsible for security of their property. Provide adequate outside security lighting at the temporary facilities. Trailers must be anchored to resist high winds and meet applicable state or local standards for anchoring mobile trailers. Coordinate anchoring with EM 385-1-1 Section 04.

During times the Contractor is actively working the project, equipment is permitted to be left alongside the road. If the Contractor chooses to leave equipment parked in this manner during non-work hours, it is at their own risk.

3.4.1 Administrative Field Offices

Provide and maintain administrative field office facilities within the construction area at the designated site. Government office and warehouse facilities will not be available to the Contractor's personnel.

3.4.2 Appearance of Trailers

a. Trailers utilized by the Contractor for administrative or material storage purposes must present a clean and neat exterior appearance and be in a state of good repair. Trailers which, in the opinion of the Contracting Officer, require exterior painting or maintenance will not be allowed on installation property.

b. Maintain the temporary facilities. Failure to do so will be sufficient reason to require their removal at the Contractor's expense.

3.5 CLEANUP

Remove construction debris, waste materials, packaging material and the like from the work site daily. Any dirt or mud which is tracked onto paved or surfaced roadways must be cleaned away. Neatly stack stored materials not in trailers, whether new or salvaged.

3.6 RESTORATION OF SITE

Upon completion of the project remove the bulletin board, signs, barricades, haul roads, and all other temporary products from the site.

Restore areas used during the performance of the Contract to the original or better condition.

-- End of Section --

SECTION 01 50 00 Page 8 rock will be necessary if results meet the requirements specified, and a continuous visual geologic examination of the rock by the Government indicates no change in rock type or quality for rock passing the laboratory tests. Rock exhibiting significant changes in type or quality will be rejected unless additional testing shows that the rock meets the specified requirements.

2.4 ROCK GRADATION, SIZE, AND ANGULARITY

2.4.1 General

The rock, after processing, must be angular and conform to the size requirements indicated below. The length of any piece of rock must not be greater than 2.5 times the lesser of the breadth or thickness. Operations of loading, hauling or stockpiling must be conducted in a manner which will minimize breakage.

a. Rock for the groin repair and for stockpiling must conform to AKDOTP&F gradation for Class IV riprap:

50-100% weighing 2000 pounds or more 0-15% weighing up to 400 pounds 0-10% weighing more than 5400 pounds

PART 3 EXECUTION

3.1 PRODUCTION TESTING

The Contractor must perform the following minimum Production Rock Gradation, Size, and Angularity Tests. Samples must be taken at the source of the materials. The COR will accompany the Contractor and observe and agree to the selection of the rock samples for testing. No failing tests will count toward meeting the minimum number of representative tests. Tests must be evenly spaced throughout production.

Tests must be by actual weighing. Results must be provided to the COR within 24 hours, or sooner if requested. The gradation testing must be conducted at the quarry or rock source location. Gradation tests must be performed in accordance with ASTM D 5519 , Test Method B.

Perform at least 1 representative test for each Class of riprap. The COR may request an additional (1) test at any time during production.

Each sample of Class IV riprap must be approximately 54 tons.

3.2 PLACEMENT FOR GROIN REPAIRS

Rock will be placed to the full thickness shown on the drawings. Rocks will be placed in such a manner as to produce a well-keyed mass of rock with individual pieces tightly in contact with each surrounding stone, and with the least practicable amount of void spaces. The finished surface must be free from pockets of single size rock. Placement of small rock to chink the spaces between large rock, or for leveling the surface, will not be permitted. Rock will not be placed on snow, ice, or debris. AM#1...

Snow and i ce r emoved f r om t he r i pr ap pl acement ar ea wi l l be moved wi t hi n t he pr oj ect l i mi t s as appr oved by t he Cont r act i ng Of f i cer . Debr i s r emoved f r om t he r i pr ap pl acement ar ea wi l l become t he pr oper t y of t he cont r act or and di sposed of of f s i t e. . . . AM#1 Breaking of individual pieces in place by blasting or mechanical methods will not be permitted. Rock must be placed to the full course thickness in one operation and in such a manner as to avoid displacing the underlying material. Placing by methods likely

SECTION 35 31 19 Page 4 to cause segregation will not be permitted. Materials that do not meet the specified requirements for size, quality, or distribution of sizes must be removed and replaced with suitable materials at no additional cost to the Government.

3.3 GROIN ROCK SLOPE MAINTENANCE

The contractor must maintain and repair any damage to the rip rap rock layers until final acceptance.

3.4 STOCKPILED RIP RAP

The rip rap stockpile location is shown on the drawings. Stockpiles must be shaped in order to present a neat appearance. Stockpile height shall not exceed 8 feet and shall have side slopes of approximately 2H:1V.

--END OF SECTION--

SECTION 35 31 19 Page 5

W911KB21B0006

CHL026

Repair Tanana Sill Groin Chena River Lakes Flood Control Project North Pole, Alaska

Pre-Bid Site Visit July 15, 2021, 1:00PM Alaska Time

a. General Overview

i. Bid Opening: August 5, 2021 at 2:00PM Alaska Time. Submit bids electronically. See Section 00 21 00 for instructions.

ii. Project Description: Repair the Tanana Sill Protection Groin at the Chena River Lakes Flood Control Project near North Pole, Alaska. The groin was initially constructed in the 1970s and the slope of the groin has been eroded by the Tanana River. The scope of the project is to procure, transport and place rip rap at the crest and slope of the Tanana Sill Protection Groin in accordance with the plans and specifications. The rip rap gradation is the Alaska Department of Transportation and Public Facilities gradation for Class IV rip rap.

iii. Payment: Payment will be made by the ton as weighed on certified scales. (See Section 01 20 00 Price and Payment Procedures)

iv. Groin Repair:

Base Item 0002: Stations 6+00 to 24+50: Estimated quantity of 55,000 tons.

Option Items 0004-0010: Seven options items, 200 feet each. Quantities ranging from 3,200 tons to 5,000 tons. Award of these option items will be dependent upon available funding and may not occur in the order shown.

Crest width of rip rap is to be a minimum of 17 feet. Rip rap is to be placed on a 1.5H:1.0V slope from the crest to the toe of the groin.

v. Stockpiled Rip Rap:

Option Items 0011-0015: Each stockpile option item is for a quantity of 1,500 tons of Class IV rip rap. The access road to the stockpile location may require some upgrade. The costs for any stockpile road improvements should be included in the first Stockpiled Rip Rap option item (Option Item 0011).

vi. Moose Creek Landing Road Closure: Moose Creek Landing Road from the Richardson Highway to the Tanana Sill Protection Groin will be closed to the public during construction. The contractor is responsible for maintaining the condition of the road and gates for the duration of the project and repairing any damage at no additional cost to the Government. See Section 01 50 00 for the traffic control plan and road maintenance requirements.

vii. Project Schedule: Onsite work shall be completed by 31 October 2022.

Reference contract clause 52.211-10.

b. Surveys (Section 31 09 13.00 29)

i. Pre- and Post-Construction Surveys: A topographic and hydrographic survey of the survey limits shown in the drawings is required prior to commencing the groin repair work and after all awarded work has been completed.

c. Rip Rap (Section 35 31 19)

i. Rip Rap Gradation: AKDOT&PF Class IV

50-100% weighing 2000 pounds or more 0-15% weighing up to 400 pounds 0-10% weighing more than 5400 pounds

ii. Rock Source: There is no Government furnished or designated rock source.

iii. Rock Quality: Rock quality testing requirements are included in paragraph

2.2.1.1 and must be performed by an independent commercial test lab validated by the Corps of Engineers. A web link for Corps of Engineers’ validated test labs is included in this section.

iv. Rock Production: Rock production testing is addressed in paragraph 3.1.

Samples shall be selected and tested in the presence of the Contracting Officer’s Representative.

v. Rock Placement: Rip rap is to be placed to the full thickness shown on the drawings and placed in such a manner as to produce a well-keyed mass of rock.

NAME

CHL026 REPAIR TANANA SILL GROIN

CHENA RIVER LAKES FLOOD CONTROL PROJECT

SITE VISIT - 15 JULY 2021

COMPANY PHONE EMAIL

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END OF PROJECT

START OF PROJECT

L6

L7

L8

L9

L11

L13

L14

C5

C6

C7

C8

C9

C10

C11

C12

L12

L10

TAPER CREST WIDTH FROM

17' TO 0' OVER A 25' LENGTH

TAPER CREST WIDTH FROM

17' TO 0' OVER A 25' LENGTH

L15

L16

L17

L18

L19

L20

L21

L22

L23

C13

C14

C15

C16

C17

C18

C19

C20

25' RIGHT OFFSET ALIGNMENT

PROJECT ALIGNMENT

ALIGNMENT CURVE DATA

CURVE

C13

C14

C15

C16

C17

C18

C19

C20

STATION

10+01.47

10+01.64

10+69.38

13+64.40

16+72.96

16+85.65

21+99.97

22+04.74

27+85.36

27+89.43

33+75.57

33+91.01

34+27.07

34+82.29

34+83.38

35+22.66

NORTHING

3,914,792.11

3,914,792.03

3,914,760.21

3,914,788.30

3,914,985.00

3,914,992.80

3,915,297.80

3,915,300.68

3,915,657.60

3,915,660.07

3,916,011.95

3,916,021.76

3,916,045.86

3,916,095.46

3,916,096.27

3,916,097.91

EASTING

1,437,391.08

1,437,390.93

1,437,331.13

1,437,054.35

1,436,816.60

1,436,806.61

1,436,392.47

1,436,388.68

1,435,930.72

1,435,927.48

1,435,458.72

1,435,446.79

1,435,419.97

1,435,417.50

1,435,418.24

1,435,453.56

RADIUS

175.00

250.00

225.00

175.00

225.00

175.00

35.00

25.00

ARC

LENGTH

0.16

295.02

12.69

4.77

4.07

15.44

55.22

39.28

DELTA

ANGLE

000°03'13"

067°36'52"

003°13'51"

001°33'37"

001°02'14"

005°03'21"

090°23'40"

090°01'08"

ALIGNMENT LINE DATA

LINE

L15

L16

L17

L18

L19

L20

L21

L22

L23

LENGTH

601.473

67.739

308.562

514.324

580.617

586.142

36.055

1.095

17.695

STATION

4+00.00

10+01.47

10+01.64

10+69.38

13+64.40

16+72.96

16+85.65

21+99.97

22+04.74

27+85.36

27+89.43

33+75.57

33+91.01

34+27.07

34+82.29

34+83.38

35+22.66

35+40.36

NORTHING

3,915,075.09

3,914,792.11

3,914,792.03

3,914,760.21

3,914,788.30

3,914,985.00

3,914,992.80

3,915,297.80

3,915,300.68

3,915,657.60

3,915,660.07

3,916,011.95

3,916,021.76

3,916,045.86

3,916,095.46

3,916,096.27

3,916,097.91

3,916,085.98

EASTING

1,437,921.82

1,437,391.08

1,437,390.93

1,437,331.13

1,437,054.35

1,436,816.60

1,436,806.61

1,436,392.47

1,436,388.68

1,435,930.72

1,435,927.48

1,435,458.72

1,435,446.79

1,435,419.97

1,435,417.50

1,435,418.24

1,435,453.56

1,435,466.64

25' RIGHT OFFSET ALIGNMENT

D R

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C A

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REFERENCE

NUMBER:

SHEET OF

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1 2 3 4 5 6 7 8 9 10 11 12

US Army Corps of Engineers ® Alaska District

VERIFY SCALES: BAR IS ONE INCH

ON ORIGINAL DRAWING

0 1"

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OFFSET

0 20 40 60 80 1000-20-40-60-80-100-120

EXISTING GROUND

RIPRAP

LEGEND NOTES:

1. THE "0" OFFSET CORRESPONDS TO THE PROJECT ALIGNMENT. THE

ALIGNMENT IS MADE UP OF LINE AND CURVE SECTIONS (L AND C) AS

SHOWN ON C-101.

2. THE RIGHT OFFSET ALIGNMENT IS LOCATED AT A +25 FOOT OFFSET FROM

THE PROJECT ALIGNEMT. THE RIGHT OFFSET ALIGNMENT PLAN AND

COORDINATES ARE SHOWN ON C-102.

3. THE CREST WIDTH OF THE RIPRAP SHALL BE A MINIMUM OF 17 FEET.

EXISTING ROCK THICKNESS AND SIDE SLOPE VARIES ALONG CREST.

VARIATIONS IN THE EXISTING SLOPE WILL BE FILLED WITH RIPRAP TO MEET

THE GRADE OF THE EXISTING ROCK SLOPE.

4. EXISTING GRADE AND BATHYMETRY SHOWN ARE FROM 2021 SURVEY DATA.

EXISTING RIPRAP SURFACE

EXISTING GRADE

RIPRAP

1V

1.5H

17' 25'

OFFSET ALIGNMENT

PROJECT ALIGNMENT

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REFERENCE

NUMBER:

SHEET OF

A

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1 2 3 4 5 6 7 8 9 10 11 12

US Army Corps of Engineers ® Alaska District

VERIFY SCALES: BAR IS ONE INCH

ON ORIGINAL DRAWING

0 1"

R T

H

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O L

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N

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AM1

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H E

NOT FOR CONSTRUCTION

D r a w i n g

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D w g s C

A D

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H L

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C-301

T Y

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SCALE: 1" = 10'

TYPICAL CROSS SECTION

C1

0 20'10'

7/22/2021 ProjNet: Logged In User

Controlled Unclassified Information (CUI) Only

Bid Inquiry Contractor Report All Inquiries

Project: Repair Tanana Sill Groin (sorted by CommentlD ) Displaying 9 inquiries.

Review: CHL026 Bidder Inquiry (00001)

I Id II Discipline II Sheet II Detail II Spec

1932921211 Civil II II II 015000-3.3.2 Comment Classification: Controlled Unclassified Information (CUI) the referenced specification any haul roads constructed other than at the stockpile location must be removed. If the contractor needs to spread gravel on the surface of the existing groin rip-rap to facilitate access, will that gravel require removal?

On: Jul 15 2021. D Government Response. . The placement of gravel on the existing groin riprap will be permitted and the gravel may remain upon completion of the project. See Amendment #1. On: Jul 22 2021

I I llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1932921411 Civil II II II Safety Comment Classification: Controlled Unclassified Information (CUI)

Will existing haul roads require construction of safety berms equal to 1/2 of the wheel height?

On: Jul 15 2021.

D Government Response. . Haul roads must comply with the requirements the USAGE Safety and Health Manual EM385-1-1. Please review to determine what conditions apply to this project. On: Jul 22 2021

I I llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1932921811 Civil II II II Payment Comment Classification: Controlled Unclassified Information (CUI)

What are the tolerances for construction, and are there any penalties for out of tolerance work?

On: Jul 15 2021.

Government Response. . The groin crest must be widened by a minimum of 17 feet, ripap must be placed to the existing river ground level and the groin slope must be no steeper than 1.5H:1V. Construction that exceeds the minimum requirements as a result of placing the quantity of riprap in the bid schedule will be acceptable with no payment penalty. Note that excavation around the groin nose is not required. On: Jul 22 2021

I I llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1933289811 Civil II II II 353119-2.4.1 Comment Classification: Controlled Unclassified Information (CUI)

Assuming my riprap test results meet the specifications for this project, will the following gradation be acceptable?

50% weighing 2000 pounds or more 15% weighing up to 400 pounds 35% weighing 400 up to 2000 pounds

All angular well-graded stone

On: Jul 19 2021.

Government Response. . The provided riprap gradation is ambiguous and not considered acceptable as it is

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I I I currently written. It is not clear from the gradation information provided how much material actually weights 400 pounds

I I or less with the statement of 35% weighing 400 up to 2000 pounds. That statement implies 35% could be 400 pounds and that does not meet the Class IV riprap gradation requirement for the project. On: Jul 22 2021 llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1933432911 Civil II C-301 II 11

II

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7/22/2021 ProjNet: Logged In User

Comment Classification: Controlled Unclassified Information (CUI)

During the site visit it was mentioned that woody and silt debris would require removal from the existing rock slope prior to placement of rip rap. This requirement is not mentioned in the plans or specifications. The downstream end, particularly around the bull nose, has filled in with silt to approximate elevation 508. Please clarify whether this will be required, the extents, and how this work will be measured and paid as much is below the water surface and not visible.

On: Jul 20 2021.

Government Response. . Debris removal is addressed in Section 35 31 19 however removal of debris below the water surface will not be required. At the nose of the groin, the toe of the revetment is the surface of the ground so the riprap will placed on the silt. On: Jul 22 2021

I I llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1933572311 Civil II II II 35 31 19-3.1 Comment Classification: Controlled Unclassified Information (CUI)

The referenced specification indicates each sample of class IV riprap must be approximately 54 tons. Please clarify whether this minimum sample size applies only to gradation testing and not quality.

On: Jul 21 2021.

Government Response. . 54 Tons is the sample size to be used for the gradation testing. Additional rock quality tests samples sizes are provided under 2.2.1.1 Rock Quality Tests and referenced in ASTM documentation. On: Jul 22

I I llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1933572111 Civil II II II 35 31 19-2.2.1.1d Comment Classification: Controlled Unclassified Information (CUI)

The referenced specification requires testing to be conducted on aggregate meeting Grading 1. What is Grading 1?

On: Jul 21 2021. D Government Response. . Reference ASTM C535 Table 1 Gradings of Test Samples, for Grading 1 material/sample requirements. On: Jul 22 2021

I I llcurrent Request Status: Request Closed Information for this report is procurement sensitive.

1933621711 Civil II n/a II N/A II Section Comment Classification: Controlled Unclassified Information (CUI)

It was mentioned at the site visit the Hydrographic survey will be provided to the bidder. Will that survey in fact be released to the bidders?

Can a coy of the site visit sign in sheet be released to the bidders.

On: Jul 21 2021.

D Government Response. . Contact information for the hydrographic survey and a copy of the sign in sheet provided as part of Amendment 0001. On: Jul 22 2021

I llcurrent Request Status: Request Closed

I Information for this report is procurement sensitive.

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I I 1933717711 Survey II II II Section 31 09 13.00 29 Item 1.6 https://www.projnet.org/projnet/binKornHome/index.cfm?strKornCob=BicPublicReportAll&strReportType=AIICont

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