W912P418B00140003.pdf

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Harpersfield Dam Dam Renovation and Lamprey Barrier
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W912P418B0014
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Solicitation W912P418B0014 Amendment 0003

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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

This amendment provides answ ers to questions that w ere received, replaces the previously provided Bid Schedule, and provides information that revises AND supplements information in the Plans And Specif ications.

In accordance w ith this Solicitation Amendment, the sealed bid response date and time is extended to 29 June 2018 at 2:00PM eastern at w hich time the Bids w ill be opened publically at USACE Buffalo, 1776 Niagara St, Buffalo, NY 14207.

1. CONTRACT ID CODE PAGE OF PAGES

1 129

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

16C. DATE SIGNED

BY

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 W912P418B0014

X 9B. DATED (SEE ITEM 11)

21-May-2018

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 X is extended, 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

20-Jun-2018

CODE

U.S. ARMY ENGINEER DISTRICT, BUFFALO

1776 NIAGARA STREET

BUFFALO NY 14207-3199

W912P4 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

Item Unit No. Description Unit Price

1 Mobilization and Demobilization JB $

2 Excavation-Existing North Abutment JB $

3 Excavation-Existing South Abutment JB $

4 Excavation -New Lamprey Barrier CY $ $

5 Excavation -New Lamprey Barrier CY $ $

6 Removals - Existing North Abutment JB $

7 Removals - Existing South Abutment JB $

8 Removals - Upper portion of JB $

9 Clean Surface of Existing Concrete Base JB $

10 Clean Shale Bedrock Surface JB $

11 Water Diversion Structures JB $

(Cofferdams)

12 Installation-New North Abutment - CY $ $ Concrete

13 Installation - New North Abutment - CY $ $ Fill

Silt/Sediments

Shale/Rock

- 538

SECTION 00 10 00

SOLICITATION, AWARD (SF1142) AND BIDDING SCHEDULE

Bid will be based upon the removal of Harpersfield Dam and installation of Lamprey Barrier as shown on the contract drawings, in accordance with these specifications.

Estimated Estimated Quantity Amount

870 -

Existing Dam

14 Installation-New North Abutment - CY $ $ Grout

15 Installation - New South Abutment CY $ $ Concrete

16 Installation - New South Abutment - CY $ $ Fill

17 Installation - New South Abutment CY $ $ Grout

18 Installation - New Lamprey Barrier - CY $ $ Concrete

19 Installation - New Lamprey Barrier - CY $ $ Grout

20 Installation - New Lamprey Barrier - JB $ Lamprey Trap Accoutrements

21 Earthen Berm CY $ $

22 Site Restoration JB $

23 Record As-builts JB $

24 Mussel Survey DA $ $

25 Mussel Relocation DA $ $

Total Estimated Amount (Items 1 ~ 25) $

- 955

NOTE: BIDS MUST BE COMPLETE AS TO ALL THE ITEMS ON THE SCHEDULE. FAILURE

TO COMPLETE ALL ITEMS ON THE BID SCHEDULE WILL RENDER THE BID NON-

RESPONSIVE.

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AMENDMENT NO. 3

W912P418B0014

HARPERSFIELD LAMPREY BARRIER

GRAND RIVER, OHIO

BIDDER QUESTIONS AND

GOVERNMENT RESPONSE

UPDATED BID FORM, PLANS, AND

SPECIFICATIONS

20 JUNE 2018

HARPERSFIELD LAMPREY BARRIER

FY18HARPERSFIELD

AMENDMENT NO. 3

W912P418B0014

-- End of Section Table of Contents --

06/19/18

Below is a description of the contents of the Amendment:

1. Bidders questions with Government responses.

2. The following changes have been made to the documents listed below:

a. The bid form has been updated:

1. Bid item 'Core Samples' has been deleted.

2. A new line item has been added:

Line Item Quantity Unit 'Mussel Survey' 3 DA

3. The following line items units and quantities have been changed as indicated:

Line Item Quantity Unit

(a) Installation-New North Abutment Grout 10 CY

(b) Installation-New South Abutment Grout 10 CY

(c) Mussel Relocation 3 DA

b. Section 01 22 00 is replaced, new section is attached. Page numbers may not match exactly.

c. Section 41 22 15.00 10 JIB CRANES has been added. A submittal register for the section is included.

d. The following attachments have been added:

1. Ground Penetrating Radar Analysis

2. Signed copy of the 401 Water Quality Certification

e. The attachment for the Brush Mattress has be updated.

f. Contract drawing G-002 is replaced, updated drawing is attached

Subject: Bidder Questions for the Harpersfield Lamprey barrier Project

* ...the scope as defined rasies serious concerns on its biddability. Especially, the mussel survey item is not able to be bid as a lump sum item due to the undefined scope and unforeseen extent of work that may or may not be required. We request that in the best interest of all parties, this item be changed to a Predetermined Amount and be performed on a cost plus basis. This is due to the variables related to the performance of the suitable habitat survey, mussel survey, and mussel relocation task to an unknown location that is not presently defined. Considering the limited numbers of potential bidders attending the site visit, it may be necessary to extend the bid date after and clarify scope of other lump sum bid items as well such as Grouting.

Answer ‐ Amendment is forthcoming adding payment item for mussel survey with unit price per day (DA) and mussel relocation unit price is changed to per day. Suitable habitat for relocation is available in the Grand River reasonably close to the project location. USACE will confer with Ohio Department of Natural Resources and US Fish and Wildlife to identify a location for mussel relocation if this becomes necessary. Grouting unit price to be changed by amendment from job to cubic yard (CY).

* Will the contractor be allowed to use whatever means and methods are necessary to divert grand river flows to establish a “dry work zone” and perform the necessary work under the current permit, or are there imposed restrictions under the current permit.

Answer ‐ 401 water quality permit will be provided for information, see amendment. The permit does not specifically address dewatering activities, but best management practices shall be used in all situations. Broken asphalt is specifically excluded for use as fill or bank protection. Temporary fill materials must be removed from the stream.

* Work is not to be performed between December‐ June in any given season. If the work is not fully complete will river diversion devices be allowed to remain installed until work can be completed?

Answer – Diversion structures are not to remain within the River during work shut down periods.

* Will a variance be allowed to continue working during designated “no work” timeframes if requested by the contractor.

Answer – The allowable construction window without a wavier is 1 July to 15 September. USACE has requested a waiver from the Ohio Department of Natural Resources (ODNR) to allow work to occur from 1 July to 31 December in 2018, 2019, and 2020. (ODNR expressed a willingness to open the allowable construction period in January of 2019 and 2020, wavier would need to be requested.) Work in the spring timeframe prior to 1 July would occur when the sea lamprey are their most active in the River seeking spawning habitat. USACE believes it is an unacceptable risk to allow a break in the current barrier during this time period.

* What is going to be required of the contractor to handle and dispose of sediments build up behind the existing dam wall?

Answer ‐ Disposal of the sediments is the contractor's responsibility. One option available is to place the material at the disposal area shown in the specifications. Material meeting the requirements of impervious or random fill may be used as backfill behind the new abutment walls.

* Would the Army Corps consider a bid date extension given the complexity of the project

Answer ‐ Bid date will be extended from 25 June to 29 June 2018. See amendment.

* On page C‐104, the drawings call out for a new valve and box and endcap for existing raceway pipe. Could you verify what size that existing raceway pipe is?

Answer – Unknown as we have not found a record of the pipe size and haven’t opened the intake structure. Anticipate that the pipe size is between 24 and 48 inches.

* Also on page C‐105, it calls to install flap gate or rubber check valve on end of existing pipe.

Could you verify what size of existing pipe is there?

Answer – 18 inch pipe.

* can you please provide additional information on the JIB crane that is to be provided and installed.

Is it to be a hand crank or mechanically operated.

Answer - Jib crane can be mechanical or hand operated. See specification section 41 22 15.00 10 JIB CRANE added by amendment.

* Also in order to provide the best price for, would the department consider changing the unit of measure on reference #’s 15, 18 and 20 grout from JB unit of measure to a CY unit of measure, and change reference #’s 9 & 10 cleaning from a JB unit of measure to a SY unit of measure for payment

Answer - Units of measure for grouting will be changed by amendment to CY. No change will be made to units of measure for cleaning.

* Will the work limits of the of project be able to extend further upstream if necessary to build and install water diversion structures?

Answer - The work limits shown contain all the area acquired by USACE for construction of the project.

See specifications section 01 10 10 REAL ESTATE. Additional real estate can be obtained by the contractor. This area within the River would fall within the purview of Ashtabula Metro Parks (Harpersfield Covered Bridge Metro Park) and as the future owner of the barrier they would be very likely to work with you in regards to use of additional real estate.

Item Unit No. Description Unit Price

1 Mobilization and Demobilization JB $

2 Excavation-Existing North Abutment JB $

3 Excavation-Existing South Abutment JB $

4 Excavation -New Lamprey Barrier CY $ $

5 Excavation -New Lamprey Barrier CY $ $

6 Removals - Existing North Abutment JB $

7 Removals - Existing South Abutment JB $

8 Removals - Upper portion of JB $

9 Clean Surface of Existing Concrete Base JB $

10 Clean Shale Bedrock Surface JB $

11 Water Diversion Structures JB $

(Cofferdams)

12 Installation-New North Abutment - CY $ $ Concrete

13 Installation - New North Abutment - CY $ $ Fill

Silt/Sediments

Shale/Rock

- 538

SECTION 00 10 00

SOLICITATION, AWARD (SF1142) AND BIDDING SCHEDULE

Bid will be based upon the removal of Harpersfield Dam and installation of Lamprey Barrier as shown on the contract drawings, in accordance with these specifications.

Estimated Estimated Quantity Amount

870 -

Existing Dam

14 Installation-New North Abutment - CY $ $ Grout

15 Installation - New South Abutment CY $ $ Concrete

16 Installation - New South Abutment - CY $ $ Fill

17 Installation - New South Abutment CY $ $ Grout

18 Installation - New Lamprey Barrier - CY $ $ Concrete

19 Installation - New Lamprey Barrier - CY $ $ Grout

20 Installation - New Lamprey Barrier - JB $ Lamprey Trap Accoutrements

21 Earthen Berm CY $ $

22 Site Restoration JB $

23 Record As-builts JB $

24 Mussel Survey DA $ $

25 Mussel Relocation DA $ $

Total Estimated Amount (Items 1 ~ 25) $

- 955

NOTE: BIDS MUST BE COMPLETE AS TO ALL THE ITEMS ON THE SCHEDULE. FAILURE

TO COMPLETE ALL ITEMS ON THE BID SCHEDULE WILL RENDER THE BID NON-

RESPONSIVE.

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AMENDMENT NO. 3

W912P418B0014

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00

PRICE AND PAYMENT PROCEDURES

08/15

PART 1 GENERAL

1.1 SUBMITTALS

1.2 SINGLE JOB PAYMENT ITEMS

1.2.1 Mobilization and Demobilization

1.2.1.1 Payment

1.2.1.2 Unit of Measure

1.2.2 Excavations

1.2.2.1 Payment

1.2.2.2 Unit of Measure

1.2.3 Removals

1.2.3.1 Payment

1.2.3.2 Unit of Measure

1.2.4 Water Diversion Structures (Cofferdams)

1.2.4.1 Payment

1.2.4.2 Unit of Measure

1.2.5 Installations - New Lamprey Barrier Lamprey Trap Accoutrements

1.2.5.1 Payment

1.2.5.2 Unit of Measure

1.2.6 Site Restoration

1.2.6.1 Payment

1.2.6.2 Unit of Measure

1.2.7 Record (As-Built) Drawings

1.2.7.1 Payment

1.2.7.2 Unit of Measure

1.3 UNIT PRICE PAYMENT ITEMS

1.3.1 Excavations

1.3.1.1 Payment

1.3.1.2 Measurement

1.3.1.3 Unit of Measure

1.3.2 Fill

1.3.2.1 Payment

1.3.2.2 Measurement

1.3.2.3 Unit of Measure

1.3.3 Concrete

1.3.3.1 Payment

1.3.3.2 Measurement

1.3.3.3 Unit of Measure

1.3.4 Earthen Berms

1.3.4.1 Payment

1.3.4.2 Measurement

1.3.4.3 Unit of Measure

1.3.5 Installations - Grout

1.3.5.1 Payment

1.3.5.2 Unit of Measure

1.3.6 Mussel Relocation

SECTION 01 22 00 Page 1003 06/19/18

AMENDMENT NO.3

W912P418B0014

1.3.6.1 Payment

1.3.6.2 Unit of Measure

1.3.7 Mussel Survey

1.3.7.1 Payment

1.3.7.2 Unit of Measure

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 22 00 Page 1004

AMENDMENT NO. 3

W912P418B0014

SECTION 01 22 00

PRICE AND PAYMENT PROCEDURES

08/15

PART 1 GENERAL

1.1 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-07 Certificates

Bill Of Lading

1.2 SINGLE JOB PAYMENT ITEMS

Payment items for the work of this contract for which contract job payments will be made are listed in the BIDDING SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price payment item, are included in the listed job item most closely associated with the work involved. The job price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.2.1 Mobilization and Demobilization

1.2.1.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs associated with mobilization and demobilization, as defined in clause 252.236-7004 PAYMENT FOR MOBILIZATION AND DEMOBILIZATION. This includes the work required for the construction signs in section 01 58 00 PROJECT IDENTIFICATION and for providing and removal of temporary fence required in section 32 31 13 CHAIN LINK FENCES AND GATES.

1.2.1.2 Unit of Measure

Unit of measure: job.

1.2.2 Excavations

1.2.2.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs associated with operations necessary for the excavations listed below. All items below include (1) before and after surveys to verify excavations are to required grade, (2) the removal and disposal of excavated material from the site or stockpiling of excavated material, as required, (3) all required erosion control measures, (4)

SECTION 01 22 00 Page 1005

AMENDMENT NO. 3

W912P418B0014 design, installation, and removal of any and all required bracing and/or temporary shoring.

a. Excavation-Existing North Abutment

b. Excavation-Existing South Abutment

1.2.2.2 Unit of Measure

Unit of measure: job.

1.2.3 Removals

1.2.3.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs associated with operations necessary for the removal and proper/legal disposal for the items listed below.

a. Removals - Existing North Abutment: included with the removal of the existing north abutment is the removal and re-installation of all park benchs, tables, existing signs, stone pavers, and any other features within the work limits not specified. Replace any feature damaged by the contractor in kind at no cost to the Government.

b. Removals - Existing South Abutment: included with the removal of the existing south abutment is the removal of a water intake that is no longer used.

c. Removals - Upper portion of Existing Dam: this includes removing any debris on the existing dam, removing any debris and sediments within the dam, and removing any debris within the work limits that would interfere with the required work. Much of the upper portion of the dam is hollow as shown on the drawings but portions of the structure near the abutments and fish ladder are solid.

1.2.3.2 Unit of Measure

Unit of measure: job

1.2.4 Water Diversion Structures (Cofferdams)

1.2.4.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs associated with operations necessary for the proper design, installation, maintenance, and removal of any temporary water diversion structures, such as cofferdams, used. The payment will be made as follows:

a. Payments will be divided equally, for each installation and removal, indicated in the required submittal "Water Diversion Plan" (section

01 57 24.00 10 CONTROL OF WATER).

b. No separate payment will be made for instances where diversion structures are removed prior to scheduled completion of work within the diversion structure and reinstalled to complete the work.

SECTION 01 22 00 Page 1006

AMENDMENT NO. 3

W912P418B0014

1.2.4.2 Unit of Measure

Unit of measure: job.

1.2.5 Installations - New Lamprey Barrier Lamprey Trap Accoutrements

1.2.5.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs to include pipes, gates, gate operating mechanisms, screens, ladders, trap lifting posts with foundations, grating and trash racks as shown and/or specified.

1.2.5.2 Unit of Measure

Unit of measure: job.

1.2.6 Site Restoration

1.2.6.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs for returning all areas where no construction was intended but was disturbed, to their pre-existing conditions or better.

This includes the removal of any temporary installations not paid for under another line item, and to provide the final interpretive signs.

1.2.6.2 Unit of Measure

Unit of measure: job.

1.2.7 Record (As-Built) Drawings

1.2.7.1 Payment

Payment will be made for the items stated in paragraph SINGLE JOB PAYMENT ITEMS and for costs associated with line item "Record (As-Built) Drawings" as required in section 01 78 00.

1.2.7.2 Unit of Measure

Unit of measure: job.

1.3 UNIT PRICE PAYMENT ITEMS

Payment items for the work of this contract on which the contract unit price payments will be made are listed in the BIDDING SCHEDULE and described below. The unit price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.3.1 Excavations

1.3.1.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with the line items listed below to include

SECTION 01 22 00 Page 1007

AMENDMENT NO. 3

W912P418B0014 the cost of all reuired surveys.

a. Excavation -New Lamprey Barrier Silt/Sediments

b. Excavation -New Lamprey Barrier Shale/Rock

1.3.1.2 Measurement

The excavation will be measured by calculating the difference between the before survey with the after surveys.

1.3.1.3 Unit of Measure

Unit of measure: cubic yard

1.3.2 Fill

1.3.2.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with the line items listed below to include the cost of all reuired surveys.

a. Installation - New North Abutment - Fill

b. Installation - New South Abutment - Fill

1.3.2.2 Measurement

The fill will be measured by calculating the difference between the before survey and the after surveys. No seperate payment will be made for the different fill materials to be placed as shown on the contract drawings.

All costs for the flowable fill and geotextile are included in this line item.

1.3.2.3 Unit of Measure

Unit of measure: cubic yard

1.3.3 Concrete

1.3.3.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with providing concrete as specified, for the line items listed below. This includes all reinforcement (rebar), joint materials, and any other items required and associated with providing the concrete.

a. Installation-New North Abutment - Concrete

b. Installation-New South Abutment - Concrete

c. Installation-New Lamprey Barrier - Concrete

1.3.3.2 Measurement

Provide a Bill of Lading with every truckload indicating the origin of the concrete and the quantity of concrete carried, rounded to the nearest full

SECTION 01 22 00 Page 1008

AMENDMENT NO. 3

W912P418B0014 cubic yard.

1.3.3.3 Unit of Measure

Unit of measure: cubic yard

1.3.4 Earthen Berms

1.3.4.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with constructing and finishing earthen bermsm to include removal of trees, scarifying existing ground, placement and compaction of impervious fill, and landscape establishment as shown.

1.3.4.2 Measurement

The excavation will be measured by calculating the difference between the before survey and the after surveys.

1.3.4.3 Unit of Measure

Unit of measure: cubic yard

1.3.5 Installations - Grout

1.3.5.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with operations necessary for the installations listed below:

a. Installation-New North Abutment - Grout: to include foundation preparation and grouting.

b. Installation-New North Abutment - Grout: to include foundation preparation and grouting.

b. Installation-New Lamprey Barrier - Grout: to include foundation preparation and grouting.

1.3.5.2 Unit of Measure

Unit of measure: cubic yard

1.3.6 Mussel Relocation

1.3.6.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with line item "Mussel Relocation" as required in section 01 57 19.

1.3.6.2 Unit of Measure

Unit of measure: day

SECTION 01 22 00 Page 1009

AMENDMENT NO. 3

W912P418B0014

1.3.7 Mussel Survey

1.3.7.1 Payment

Payment will be made for the items stated in paragraph UNIT PRICE PAYMENT ITEMS and for costs associated with line item "Mussel Relocation" as required in section 01 57 19.

1.3.7.2 Unit of Measure

Unit of measure: day

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used -- End of Section --

SECTION 01 22 00 Page 1010

HARPERSFIELD LAMPREY BARRIER AMEMDMENT NO. 3

FY18HARPERSFIELD W912P418B0014

SECTION TABLE OF CONTENTS

DIVISION 41 -MATERIAL PROCESSING AND HANDLING EQUIPMENT

SECTION 41 22 15.00 10

JIB CRANES

04/06

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALIFICATION

1.4 TESTING AND INSPECTIONS

1.5 DESIGN CRITERIA

1.5.1 General

1.5.1.1 Welding

1.5.2 Classification

1.5.3 Rated Capacity

1.6 DELIVERY AND STORAGE

1.7 FIELD MEASUREMENTS

1.8 STABILITY

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

2.1.2 Nameplates

2.1.3 Use of Asbestos Products

2.1.4 Capacity Plates

2.1.5 Safety Warnings

2.2 STRUCTURAL MATERIALS

2.2.1 Bolts, Nuts and Washers

2.2.2 Girder or Girders

2.2.3 Additional Provisions for Outside Service

2.3 ELECTRICAL COMPONENTS

2.3.1 Electric Chain Hoist

2.3.2 Portable Generator

PART 3 EXECUTION

3.1 ERECTION

3.1.1 Shop Assembly

3.1.2 Welding

3.2 ACCEPTANCE TESTING

3.2.1 General

3.2.1.1 Test Sequence

3.2.1.2 Equipment Monitoring

3.2.1.3 Hooks

3.2.2 No-Load Testing

3.2.2.1 Hoist Operating

3.2.2.2 Hoist Loss of Power No-Load Test

3.2.3 Load Test

3.2.3.1 Hoist

SECTION 41 22 15.00 10 Page 1001 06/20/18

3.2.4 Overload Tests

3.2.5 Adjustments and Repairs

3.3 SCHEMATIC DIAGRAMS

3.4 MANUFACTURER'S FIELD SERVICE REPRESENTATIVE

3.5 FIELD TRAINING

3.6 ACCEPTANCE

-- End of Section Table of Contents --

SECTION 41 22 15.00 10 Page 1002

SECTION 41 22 15.00 10

JIB CRANES

04/06

PART 1 GENERAL

Work under this section involves designing, manufacturing,and erecting two permanently installed jib cranes. One is to be located at each new abutment as shown. Jibs can be a new custom design or a manufacturer's standard model that works for the indicated project conditions. Jibs are to be equiped with an electric chain hoist powered by a portable generator.

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 316 (1989) ASD Manual of Steel Construction

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2006) Structural Welding Code - Steel

AWS D14.1 (1997) Welding Industrial and Mill Cranes and Other Material Handling Equipment

ASME INTERNATIONAL (ASME)

ASME B30.16 (2003) Overhead Hoists (Underhung)

ASME B30.17 (2003) Overhead and Gantry Cranes (Top Running Bridge, Single Girder, Underhung Hoists)

ASME B30.2 (2005) Overhead and Gantry Cranes (Top Running Bridge, Single or Multiple Girder, Top Running Trolley Hoist)

ASME HST-1 (1999; R 2004) Electric Chain Hoists

ASME HST-4 (1999; R 2004) Overhead Electric Wire Rope Hoists

ASTM INTERNATIONAL (ASTM)

ASTM A 325 (2004b) Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM A 490 (2004a) Structural Bolts, Alloy Steel, SECTION 41 22 15.00 10 Page 1003

Heat Treated, 150 ksi Minimum Tensile Strength

CRANE MANUFACTURERS ASSOCIATION OF AMERICA (CMAA)

CMAA 70 (2004) EnviroTop Running and Bridge and Gantry Type Multiple Girder Electric Overhead Traveling Cranes, No. 70

CMAA 74 (2004) Top Running and Under Running Single Girder Electric Overhead Cranes Utilizing Under Running Trolley Hoist, No.

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00, SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Jib Crane; G,DS

Detail drawings containing complete wiring and schematic diagrams. Diagrams shall indicate each numbered wire, where wire initiates, where wire terminates, and any other details required to demonstrate that the system has been coordinated and will properly function as a unit. Drawings shall show layout and anchorage of equipment and appurtenances, and equipment relationship to other parts of the work including clearances for maintenance and operation.

SD-03 Product Data

Hooks

Hook material and any heat treatment performed, stamped on the hook shank or documented in certification papers furnished with the hooks. Crane test data recorded on appropriate test record forms suitable for retention for the life of the crane.

Jib Crane

A complete list of equipment and materials, including manufacturer's descriptive data and technical literature, performance charts and curves, catalog cuts, and installation instructions.

Framed Instructions

Diagrams, instructions and safety requirements.

Portable Generator

Owners manual for gasoline generator sized to power the electric chain hoists specified herein.

SECTION 41 22 15.00 10 Page 1004

Electric Chain Hoist

Owners manual, operating instructions, and all manufacturer's data related to the electric chain hoists showing they meet project requirements.

SD-06 Test Reports

ACCEPTANCE TESTING

Test reports in booklet form showing all field tests performed to adjust each component and all field tests performed to prove compliance with the specified performance criteria, upon completion and testing of the installed system. The report shall include the information as required by paragraph ACCEPTANCE

TESTING.

Load Chain Proof Test

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals

Six copies of operation and six copies of maintenance manuals for the equipment furnished. One complete set prior to performance testing and the remainder upon acceptance. Operation manuals shall detail the step-by-step procedures required for system startup, operation and shutdown. Operation manuals shall include the manufacturer's name, model number, parts list, and brief description of all equipment and basic operating features.

Maintenance manuals shall list routine maintenance procedures, possible breakdowns and repairs, and troubleshooting guides.

Maintenance manuals shall include piping and equipment layout and simplified wiring and control diagrams of the system as installed. Operation and maintenance manuals shall be approved prior to the field training course.

1.3 QUALIFICATION

Jib Crane is to be designed and manufactured by a company with a minimum of 10 years of specialized experience in designing and manufacturing the type of crane required to meet requirements of the Contract Documents.

Manufacturer's standard model can be used provided the model meets all the project requirements.

1.4 TESTING AND INSPECTIONS

Contractor is responsible for performance of quality control inspections, testing and documentation.

1.5 DESIGN CRITERIA

Cranes must operate in the given spaces. Hook coverage, hook vertical travel, clear hook height, lifting capacity, and load test weight will equal or exceed that indicated.

SECTION 41 22 15.00 10 Page 1005

1.5.1 General

The hoisting equipment will include the following: Two identical jib cranes, one at each abutment as shown.

1.5.1.1 Welding

Welding is to be in accordance with qualified procedures using AWS D14.1 as modified. Written welding procedures shall specify the Contractor's standard dimensional tolerances for deviation from camber and sweep and such tolerances shall not exceed those specified in AWS D14.1. All welding is to be performed indoors. Welders and welding operators are to be qualified in accordance with AWS D1.1/D1.1M or AWS D14.1. Allowable stress values are to be in accordance with CMAA 70.

1.5.2 Classification

Crane is to be designed and constructed to CMAA 74 moderate service requirements for operation in outdoor environment with hoist in accordance with ASME HST-1 or ASME HST-4.

1.5.3 Rated Capacity

Rated capacity of crane is to be determined by the contractor, cranes must be able to lift at least 500 pounds.

1.6 DELIVERY AND STORAGE

Equipment delivered and placed in storage is to be stored with protection from the weather, humidity and temperature variations, dirt and dust, and other contaminants.

1.7 FIELD MEASUREMENTS

Before performing any work, Contractor is to become familiar with all details of the work, verify all dimensions in the field, and submit a letter describing the results of this verification including discrepancies to the Contracting Officer and crane manufacturer.

1.8 STABILITY

Jib cranes must have a minimum factor of safety of 1.25 against overturning. Counterweights are to be provided if necessary to obtain the required stability.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 General

Materials and equipment are to be standard products of manufacturers regularly engaged in the fabrication of complete and totally functional cranes including necessary ancillary equipment.

2.1.2 Nameplates

Nameplates are to be secured to each major component of equipment with the manufacturer's name, address, type or style, model or catalog number, and

SECTION 41 22 15.00 10 Page 1006 serial number. Identified plates are to be noncorrosive metal with letters which are easily read from the ground.

2.1.3 Use of Asbestos Products

Materials and products required for designing and manufacturing cranes are not to contain asbestos.

2.1.4 Capacity Plates

Two capacity plates, per crane, indicating the crane capacity are required, one secured to each side of jib crane. Each capacity plate is to be fabricated of a steel backing plate and exterior quality/fade-resistant stick-on labels with letters large enough to be easily read from the ground. Capacity plates are to be placed in a location visible to operator's position after the crane has been installed.

2.1.5 Safety Warnings

Readable warning labels are to be affixed to each lift block or control pendant in a readable position in accordance with ASME B30.16, ASME B30.2 and ASME B30.17. The Contractor shall submit these safety warnings, diagrams and other Framed Instructions for display as indicated by the Contracting Officer.

a. The word "WARNING" or other legend shall be designed to bring the label to the attention of the operator. Warning labels shall be durable type and display the following information concerning safe-operating procedures: Cautionary language against lifting more than the rated load; operating the hoist when the hook is not centered under the hoist; operating hoist with twisted, kinked or damaged chain;

operating damaged or malfunctioning hoist; lifting people; lifting loads over people; and removing or obscuring the warning label.

b. To avoid operation of crane in the wrong direction, the words "FORWARD" and "REVERSE" and accompanying directional arrows shall be affixed in a location which are visible and readable to the operator from pendant station. The words "FORWARD" and "REVERSE" shall agree with the markings on control pendant. Directional arrows shall not be indicated on control pendant.

2.2 STRUCTURAL MATERIALS

2.2.1 Bolts, Nuts and Washers

High-strength bolted connections are to utilize SAE Grade 5 bolts with corresponding lockwashers, nuts, etc., conforming to requirements of AISC 316 bolts. Bolts, nuts and washers are to conform to ASTM A 325 bolts. Galvanized bolts are not acceptable. ASTM A 490 bolts will not be used.

2.2.2 Girder or Girders

Girders are to be welded structural steel box sections, wide flange beams, standard I-Beams, reinforced beams or sections fabricated from rolled plates and shapes.

SECTION 41 22 15.00 10 Page 1007

2.2.3 Additional Provisions for Outside Service

Welded structural members on outdoor cranes are to be seal welded. Crane bridges are to be provided with parking brakes which will sufficiently hold the crane against a wind pressure of 15 psf for in-service conditions.

2.3 ELECTRICAL COMPONENTS

2.3.1 Electric Chain Hoist

Electric chain hoist is to conform to ASME HST-1, Class H3 and NEMA ICS 8, NEMA MG 2, and NEMA ESPG. Hoists are to be rated to lift at least 500 pounds. Provide chain hoists with 20 foot lift or more with a load chain bucket. Submit load chain proof test results. Hoist is to be equipped with a power cord.

2.3.2 Portable Generator

Provide gas powered portable generator capable of powering the electric chain hoists described above. Provide outdoor extension cord sized appropriately to conenct electric hoist to generator located on the ground.

PART 3 EXECUTION

3.1 ERECTION

The entire crane erection shall be performed in accordance with manufacturer's instructions under the full-time supervision of the manufacturer's representative. Contractor is to provide a written certificate from crane manufacturer indicating the crane is erected in accordance with manufacturer's recommendations before testing the completed installation.

3.1.1 Shop Assembly

Major crane components are to be shop assembled as completely as possible.

Disassembled parts shall be match marked. Parts and equipment at site are to be protected from weather, damage, abuse and loss of identification.

Erection procedures must ensure that the crane is erected without initial stresses, forced or improvised fits, misalignments, nicks of high-strength structural steel components, stress-raising welds and rough burrs. Damaged painted surfaces are to be cleaned and repainted after crane is erected.

All necessary grease and oil of approved quality and grade for the initial servicing and field test are to be provided by the Contractor.

3.1.2 Welding

Welders, welding operations and welding procedures are to be qualified or prequalified in accordance with AWS D14.1. Welding is to be performed indoors and the surface of parts to be welded shall be free from rust, scale, paint, grease or other foreign matter. Minimum preheat and interpass temperatures shall conform to the requirements of AWS D14.1.

Welding shall be performed in accordance with written procedures which specify the Contractor's standard dimensional tolerances for deviation from camber and sweep. Such tolerances shall not exceed those specified in accordance with AWS D14.1. Allowable stress ranges shall be in accordance with CMAA 70. Welding of girders and beams shall conform with AWS D14.1.

SECTION 41 22 15.00 10 Page 1008

3.2 ACCEPTANCE TESTING

3.2.1 General

Contractor shall provide all personnel necessary to conduct the required testing which shall include but not be limited to crane operators, riggers, rigging gear and test weights. Testing shall be performed in the presence of Contracting Officer or his designated representative. Contractor shall notify Contracting Officer 14 days prior to testing operations. Contractor shall operate all equipment and make all necessary corrections and adjustments prior to the testing operations witnessed by Contracting Officer. A representative of the Contractor responsible for procuring and installing hoist equipment shall be present to direct the field testing.

Test loads is to be compact and permit a minimum of 50 percent of vertical lift. Test loads is to be minus 0 percent to plus 5 percent of the required weight, and must be verified prior to testing. Test weights required are 500 pounds. Three copies of all test reports are to be furnished to Contracting Officer.

3.2.1.1 Test Sequence

Crane is to be tested in accordance with applicable paragraphs of this procedure in the sequence provided.

3.2.1.2 Equipment Monitoring

Improper operation or poor condition of safety devices, electrical components, mechanical equipment and structural assemblies shall be monitored during the load test. Defects observed to be critical during the testing period shall be reported immediately to the Contracting Officer and the testing operations shall be suspended until the defects are corrected.

During each load test and immediately following each load test, the following inspections shall be made:

a. Inspect for evidence of bending, warping, permanent deformation, cracking or malfunction of structural components.

b. Check for overheating in brake operation; check for proper stopping.

c. Check for abnormal noise or vibration and overheating in machinery drive components.

d. Check electrical components for proper operation, freedom from chatter, noise, and overheating.

e. Inspect gears for abnormal wear patterns, damage, or inadequate lubrication.

f. Verify that locations of crane capacity plates are visible from pendant operator's position.

3.2.1.3 Hooks

Hooks is to be measured for hook throat spread before and after load test.

A throat dimension base measurement is to be established by installing two tram points and measuring the distance between the tram points to within 1/64 inch. This base dimension is to be recorded. Distance between tram points is to be measured before and after load test. An increase in throat

SECTION 41 22 15.00 10 Page 1009 opening by more than 1 percent from base measurement is cause for rejection.

3.2.2 No-Load Testing

3.2.2.1 Hoist Operating

Load hook is to be raised and lowered through the full range of normal travel

3.2.2.2 Hoist Loss of Power No-Load Test

Hooks shall be raised to a height of approximately 12 feet or less. While slowly lowering the hook the main power source shall be disconnected, verifying that the hook will not lower and that brakes will set.

3.2.3 Load Test

3.2.3.1 Hoist

Unless otherwise indicated, the following tests shall be performed using a test load of 125 percent (plus 5 percent, minus 0 percent) of rated load.

a. Hoist Static Load Test: Holding brakes and hoisting components are to be tested by raising the test load approximately 1 foot.

Load is to be held for 10 minutes. Any lowering that may occur indicates a malfunction of brakes or lowering components.

b. Dynamic Load Test: Test load is to be raised and lowered through the full range. Lift is to be completely stopped at least once in each direction to ensure proper brake operation.

c. Hoist Mechanical Load Brake: With test load raised approximately 5 feet and with the hoist controller in the neutral position, holding brake shall be released. Mechanical load brake shall be capable of holding the test load. With holding brake in released position, test load shall be lowered (first point) and the controller shall be returned to OFF position as the test load lowers. Mechanical load brake shall prevent the test load from accelerating.

d. Hoist Loss of Power Test: After raising test load to approximately 8 feet, slowly lowering the test load, the main power source and control pushbutton shall be released verifying that the test load will not lower and that both brakes will set.

Test shall be repeated using micro-drive controls.

3.2.4 Overload Tests

After the operational tests, crane system and all functions of crane shall be tested at 125 percent of rated load.

3.2.5 Adjustments and Repairs

Adjustments and repairs are to be performed by Contractor under the direction of the Contracting Officer at no additional cost to the Government, until satisfactory conditions are maintained, and contract compliance is affected. After adjustments are made to assure correct functioning of the components, pertinent testing is to be repeated.

SECTION 41 22 15.00 10 Page 1010

3.3 SCHEMATIC DIAGRAMS

Schematic diagrams for equipment shall be stored where indicated on drawings.

3.4 MANUFACTURER'S FIELD SERVICE REPRESENTATIVE

Contractor shall furnish a qualified experienced manufacturer's field service representative to supervise the crane installation, assist in the performance of the on site testing, and instruct personnel in the operational and maintenance features of the equipment.

3.5 FIELD TRAINING

Contractor shall conduct a training course for the operating staff.

Training period will consist of a total of 4 hours of normal working time and will start after the system is functionally completed but prior to final acceptance. Course instructions will cover pertinent points involved in operating, starting, stopping, and servicing the equipment, including all major elements of the Operation and Maintenance Manuals. Course instructions shall demonstrate all routine maintenance operations such as lubrication and general inspection. Contracting Officer is to be given at least 3 weeks advance notice of field training.

3.6 ACCEPTANCE

Final acceptance of crane system will not be given until Contractor has successfully completed all testing operations, corrected all material and equipment defects, made all proper operation adjustments, and removed paint or overspray on wire rope, hook and electrical collector bars.

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SECTION 41 22 15.00 10 Page 1011

SUBMITTAL FORM,Jan 96 PREVIOUS EDITION IS OBSOLETE PAGE 1 OF 1 PAGES

41 22 15.00 10 SD-02 Shop Drawings

1.3 G DSJib Crane

SD-03 Product Data 3.2.1.3Hooks 1.3Jib Crane 2.1.5Framed Instructions 2.3.2Portable Generator 2.3.1Electric Chain Hoist 2.3.1Electric Chain Hoist

SD-06 Test Reports

3.2ACCEPTANCE TESTING

2.3.1Load Chain Proof Test

SD-10 Operation and Maintenance Data

3.5Operation and Maintenance Manuals

SUBMITTAL REGISTER

CONTRACT NO.

TITLE AND LOCATION CONTRACTOR

CONTRACTOR:

SCHEDULE DATES

CONTRACTOR

ACTION

APPROVING AUTHORITY

A C T I V I T Y

N O

T R A N S M I T T A L

N O

S P E C

S E C T

DESCRIPTION

ITEM SUBMITTED

P A R A G R A P H

C L A S S I F I C A T I O N

G O V T

O R

A E

R E V W

R SUBMIT

APPROVAL

NEEDED

BY

MATERIAL

NEEDED

BY

A C T I O N

C O D E

DATE

OF

ACTION

DATE FWD

TO APPR

AUTH/

DATE RCD

FROM

CONTR

DATE FWD

TO OTHER

REVIEWER

DATE RCD

FROM OTH

REVIEWER

A C T I O N

C O D E

DATE

OF

ACTION

MAILED

TO

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DATE RCD

FRM APPR

AUTH REMARKS

(a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) (q) (r)

HARPERSFIELD DAM

GREAT LAKES ECOSYSTEM AND FISHERIES

RESTORATION

INTEGRATED DETAILED PROJECT REPORT

DRAFT

December 2012

APPENDIX C

Ground Penetrating Radar Analysis

(This page left intentionally blank.)

www.GPRDATA.com

2580 Edgewater Drive, Eugene, OR 97401

Ground Penetrating Radar Experts Tel: 541-345-1075 Fax: 541-684-7865 www.GPRDATA.com

GPR Data Inc.

presents this

Ground Penetrating Microwave Radar (GPMR) Analysis of

Harpersfield Low Head Dam located in

Ashtabula County, Ohio U.S.A for

Tetra Tech, Inc.

1468 W. 9th Street, Suite 620 Cleveland, O.H. 44113

2 www.GPRDATA.com

Ground Penetrating Radar Experts Tel: 541-345-1075 Fax: 541-684-7865 www.GPRDATA.com

Prepared for: General Notes:

Kevin Kratt GPR Data Inc. Project #2012 ‐ 26976 Project Engineer Subcontract #26976 ‐ GPR 216‐861‐2950 Ext. 101 GPMR data collection date 6/16/2012 ‐ 6/18/2012 Water Resources Group, Tetra Tech USACE—Buffalo District 1468 W. 9th Street, Suite 620 Cleveland, Ohio 44113

Project Location:

Harpersfield Low Head Dam Ashtabula County, Ohio U.S.A.

Produced by:

Michael Edwards, GPMR Analysis Engineer, Project Manager & Principal Matthew Edwards, GPMR Process Engineer, Principal Reid Davis, GPMR Data Acquisition Engineer & Field Collection Expert Jeff Sohlstrom, GPMR Data Acquisition Technician & Field Collection Expert

GPR Data Inc. website ‐ www.GPRDATA.com 2580 Edgewater Drive email ‐ mike.edwards@gprdata.com; matthew.edwards@gprdata.com Eugene, OR 97401 GPR Data Inc. Project 2012 ‐ 26976 Tel: 541‐345‐1075 Fax: 541‐684‐7856

3 www.GPRDATA.com

Ground Penetrating Radar Experts Tel: 541-345-1075 Fax: 541-684-7865 www.GPRDATA.com

GPR Data, Inc. was elected to perform the following tasks in support of Tetra Tech’s task order with the USACE– Buffalo District. Each contracted task is listed in order below and a detailed breakdown of that task’s data with analysis is presented on the following pages.

Task 1– GPR Data, Inc. will use ground penetrating radar to determine if the hollow area shown in available drawings actually exists. If there is a hollow area within the dam, GPR Data, Inc. will determine its extent with respect to both the longitudinal length of the dam and cross section of the dam.

Task 2‐ GPR Data, Inc. will determine the location and geometry of all voids within the concrete dam including distance of the voids to the dam face and also any voids that may exist along the concrete‐bedrock interface. Three to four full length dam profiles will be collected spaced 2’ apart.

Task 3– GPR Data, Inc. will determine the locations and approximate sizes of embedded metals, including reinforcing steel, within the concrete and also any metals that may ex‐ tend for the dam concrete into the rock foundation. Any metal that exists will be identified through the data collected in Tasks 1 and 2.3. The size of the material will need to be estimated.

Task 4– GPR Data, Inc. will map the concrete‐bedrock interface evaluation. Bedrock interface along the dam length can be evaluated only on the longitude profiles.

Task 5– GPR Data, Inc. will identify cracks, delamination, and other deterioration of the dam concrete and also rock just below the dam. Estimates will be provided of ongoing deterioration of concrete including type of deterioration, cause of deterioration and extent with respect to distance from the dam face. The compressive strength of the dam concrete will be estimated based on the GPR data collected and an overall assessment of the dam’s condition will be provided. Tetra Tech geotechnical personnel will assist with assessing the overall condition of the dam.

Task 6– GPR Data, Inc. will determine if the dam has moved or been forced downstream based on the results of the previous tasks.

Task 7– GPR Data, Inc. will attempt to determine if there is scour at the downstream end of the dam. It is understood that the downstream side of the dam is the most difficult area to collect data as the turbulence of the water from the falloff the dam creates an air induced surface that impacts the signal return. A smooth surface or standing pool type condition must exist to enable data collection on the downstream side. GPR Data, Inc.

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