W912P709B0001_Amendment0002.pdf

5. Bidders must complete and submit attached “Dredging Plant and Equipment Schedule”, forms P.1 and P.2 as part of their solicitation package for bid evaluation. Failure to do so may cause the bid to be considered nonresponsive. The Contractor shall demonstrate that all necessary equipment will be available and committed to this contract.

6. DREDGED QUANTITIES: For payment purposes, all quantities for which the Government will pay under this contract shall be based on the Government pre and post dredge surveys.

7. HAMILTON OFF LOADER OPERATION The Hamilton off Loader is operated by the Manson-Dutra Joint Venture [MDJV] under Contract NO. WP 912P7-07-C-0001, Oakland Navigation Improvement -50 ft Deepening Project Phase 3E, Oakland Inner and Outer Harbor, Alameda and San Francisco Counties. Bidders are advised that the dredged material to be disposed of at the HWRP will be off loaded with a hydraulic offloader, and pumped through several booster pumps and through approximately 35,000 to 40,000 lineal feet of pipeline. As such, the successful bidder is cautioned that its work plan and execution will require coordination with the MDJV and will further require certain equipment and production limitations as described in these contract documents. For coordination of additional requirements and/or further details relating to the Hamilton Off Loader, please contact Manson- Dutra JV, Attention: Terry Hammerwold, Telephone number 415/ 884-2973.

8. It is anticipated that a contract may be awarded to the lowest responsive responsible bidder Submitting a bid under the “bid Schedule – Government Furnished site”. Should award be made this bid schedule, the costs of disposal of this material at the Government furnished site will be paid for by the Federal authorized Hamilton Wetland Restoration Project.

9. BASIS of AWARD: A contract will be awarded to the lowest responsive, responsible bidder in accordance with FAR 52.214-19.

For purpose of determining the lowest responsive bid, the estimated O&M cost share associated with Government provided off loading at the Hamilton Wetland Restoration Project will be added to the Total Bid submitted under the Bid Schedule – Government Furnished Site to determine the Government Furnished Site – Total Evaluation Bid. The estimated O&M cost share associated with government provided off loading is determined by estimating the cost differential between hauling material to the Hamilton offloader and disposing of material at the traditional Richmond legacy aquatic site.

10. In the event a bidder or bidders submit bids under the Bid Schedule – Contractor Furnished Site, the lowest responsive, responsible Contractor Furnished Site – Total Evaluation Bid received will be compared to the lowest responsive, responsible Government Furnished Site – Total Evaluation Bid received. Award will be made to the lowest responsive, responsible bid identified from this comparison.

Page 1 of 9 Dredging Section 35 20 23

E) ns of on als

SECTION 35 20 23

DREDGING

PART 1 GENERAL

INTRODUCTION

This section primarily describes the procedures and methodology required to complete Dredging to include excavation and material loading.

PAYMENTS PROCEDURES

Payment procedures for work described in this section shall be in accordance with the HYDROGRAPHIC SURVEYING Section.

REFERENCES

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

Department of the Army, U.S. Army Corps of Engineers (USAC EM 1110-1-2909 (2005) Geospatial Data and Systems EM 1110-2-1003 (2002) Hydrographic Surveying EM 1110-2-1601 (1991) Dredging and Dredged Material Disposal

USACE / USEPA / BCDC / SFBRWQCB Publicatio

SF Bay LTMS (2001) Long-Term Management Strategy for the Placement Dredge Material in the San Francisco Bay Regi

SUBMITTALS

Government approval is required for submittals with a "G" designation. Submittals having an “I” designation are for information only. The following shall be submitted in accordance with SUBMITTAL PROCEDURES Section:

SD-01: Preconstruction Submitt

Page 2 of 9 Dredging le .1 an .2 on .4 an .5

S) .6 rts es G .3 og I .7 ta I .8

Dredging Plant & Equipment Schedu G 35 20 23-3.3 Dredging Pl G 35 20 23-3.3 Coast Guard Notificati I 35 20 23-3.3 Debris Pl G 35 20 23-3.3 Dredge Data Logging System (DDL G 35 20 23-3.3

SD-06: Test Repo

Dredging Plan Updat 35 20 23-3.3 Dredge Material Disposal Site L 35 20 23-3.3 DDLS Report/Da 35 20 23-3.3

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

GENERAL

All plant and equipment to be used in performing the work shall be of sufficient size and efficiency to meet the job requirement. The Government and other authorized personnel shall be allowed access to all equipment and materials pertaining to this contract for the purposes of monitoring and inspection.

Dredging prior to Contractor Certification of the Government provided Pre Dredge Survey is unauthorized. The use of explosives is prohibited.

MOBILIZATION

Mobilization shall include all work required to prepare for contract work including preparing the Contractor's dredging plant and equipment for shipment; moving plant, equipment, labor, materials, supplies and incidentals to the job site; making ready for dredging; and maintaining plant and equipment in working condition at the site during the dredging period.

SUBMITTAL REQUIREMENTS

Page 3 of 9 Dredging

3. 3.1 Dredging Plant & Equipment Schedule: The Contractor shall submit a schedule, within 20 calendar days after NTP, that describes the major equipment to be used on this job including dredge plants, scows, barges, tug boats and hydrographic survey vessels. Descriptions shall include but are not limited to equipment name, type, capacity and other identifying information.

3.3.2 Dredging Plan: The Contractor shall submit a Dredging Plan within 20 calendar days after NTP. Dredging prior to Government approval of the Dredge Plan is unauthorized. The Dredging Plan shall clearly and concisely describe the project specific procedures and methodologies proposed to ensure successful project delivery. Industry standards, regulations and information provided in other project submittals shall be incorporated by reference to the maximum extent practicable to avoid unnecessary redundant submittals. The Plan shall include but is not limited to:

General Project Information: A summary of project specific information including but not limited to contract identification information, major project milestones, methods of execution and key players.

Dredging Procedures: A narrative description of proposed project specific activities and methodologies.

Dredging Sequencing Description: A schedule and/or narrative description of the sequence of project activities that includes the start and end of dredging in each reach and identifies hydrographic survey activities. Coordinate and reference project submittals to avoid the duplication of information.

3.3. 3 Dredging Plan Drawings: These drawing(s) shall graphically present dredging activity including project channel data, barge anchoring locations, instrumentation, coordinates and land elevations of all control points for electronic positioning system and MLLW determination, estimated daily dredge advances, quality control survey procedures, anticipated problem areas of the project involving poor access due to boat traffic congestion or boat docking, and procedures to assure that dredging will proceed within the contract template and be performed in the most economical manner. Drawings shall be submitted in paper format and in electronic (.dwg and .pdf) format on a CD-ROM.

Material Monitoring Plan: Clearly and concisely describe the project specific procedures and methodologies proposed for the purpose of verifying no unauthorized placement, release and/or disposal of dredged material associated with dredged material management activities. The plan should include but is not limited to applicable information regarding monitoring for overflow, spillage and leakage associated with scow loading and transit operations, pipeline operations and hopper dredge operations. Typical quality control methodologies include but are not limited to

Page 4 of 9 Dredging before and after hydrographic surveys of scow fill areas, sensor monitoring of scow operational parameters and visual verifications.

Dredging Plan Updates: The Contractor shall submit updates to the Dredging Plan on a weekly basis.

3. 3 .4 Coast Guard Notification: The Contractor shall submit copies of written Coast Guard notifications prior to conducting dredging activities. The Contractor shall utilize the Dredging Plan to forecast the activities in the channels and shall notify the United States Coast Guard Marine Safety Office in writing with a copy to the Contracting Officer. When utilizing the Government-furnished open water disposal area, the Contractor shall notify the U.S. Coast Guard via radio five minutes in advance of actual departure from the dredge site and immediately prior to arrival at the disposal site and to begin actual disposal operations.

3.3.5 Debris. Debris, including but not limited to man-made objects, timber, chains, anchors, flotsam, miscellaneous metal objects, tires, cables, plastics, lumber, abandoned utilities, pilings, tree branches and other foreign material removed during dredging shall not be disposed of in the Government-furnished disposal and fill areas. The Contractor shall remove any errantly placed debris found in the Government-furnished disposal and fill areas at no expense to the Government.

3.3.5.1 Debris Plan. The Contractor, at the dredge site, shall pass the dredged material through a grid with openings of not more than 10 inches in any dimension to prevent debris larger than 10 inches in diameter to enter the scow. The Contractor may propose another method, such as slurrying, that will similarly break up the dredged material. The Contractor shall submit his grid plan or an alternate plan for breaking up the material, including but not limited to procedures and equipment used to generate the slurry, testing procedures and test reporting procedures at least ten (10) days prior to dredging.

3.3.5.2 Debris Delays. The Contractor shall anticipate delays that may occur for removal and disposal of debris. The time to remove debris will not be the basis for a contract time extension.

3.3.5.3 Debris Separation. The Contractor shall remove all debris encountered within the dredging prism and placed it in a separate scow or other conveyance and shall disposed of all debris as specified in subparagraph 3.3.5.4.

3.3.5.4 Disposal of Debris. The Contractor shall transport all debris by truck or other conveyance off Government or Port property and shall dispose of the debris in a land disposal site in accordance with local, State and Federal laws and regulations.

Page 5 of 9 Dredging

3.3.5.5 The Contractor shall obtain all necessary permits and approvals required for disposal of debris.

3.3.6 Dredge Data Logging System (DDLS): The Contractor shall submit the DDLS, the DDLS backup system and the qualifications of the DDLS QC firm to the Contracting Officer for approval.

3.3.7 Dredge Material Disposal Log (DMDSL): The Contractor shall maintain a DMDSL using the “Dredge Material Disposal Site Log” form in the appendices. Every Monday, the Contractor shall email the prior week’s DMDSL data to DLL-SPN-ET-C@usace.army.mil and Shelah.Sweatt@usace.army.mil

3.3.8 DDLS Report/Data: The Contractor shall submit electronic copies of the DDLS positional data for all dredge equipment and all disposal/fill vessels utilized; and dredged quantity, sediment type and GPS positional data on the dredge and disposal or fill locations for all scows and barges. This electronic data shall be included in the daily CQC Report on a CD-ROM.

3.4 EQUIPMENT

3.4.1 Dredging Plant: Dredging shall be performed by either/or a combination of pipeline dredging, clamshell dredging, hopper dredging or other method provided that the dredged material is managed is accordance with the Debris Plan requirements.

3. 4.2 Silent Inspector: The Contractor shall provide Silent Inspector system components in accordance with this section, the SILENT INSPECTOR Section(s) of these specifications, EM 1110-2-1003 and applicable contract clauses.

3. 5 SITE CONDITIONS

3.5.1 Character of Materials: The material to be restore the depth within the limits shown on the drawings is composed of material that has accumulated since the channel was last dredged to the depth.

3.5.2 In accordance with Contract Clause “ SITE INVESTIGATION AND CONDITIONS AFFECTING THE WORK( FAR 52.236-3)” the Contractor us expected to examine the site of the work . The records of previous dredging are available at the office of the District Commander, U.S. Army Corps of Engineers, 1445 Market Street, San Francisco, California 94103.

mailto:DLL-SPN-ET-C@usace.army.mil mailto:Shelah.Sweatt@usace.army.mil

Page 6 of 9 Dredging

3.6 GENERAL DREDGING

3.6.1 Dredging prior to Contractor Certification of the Government provided pre dredge survey is unauthorized.

3.6.2 Reaches: The project area has been divided into reaches as presented in the project plans.

The Contractor shall not dredge in a reach without the written approval of the Contracting Officer. Written requests to begin dredging in a reach shall be initiated by the Contractor and shall include a copy of the request for Reach Acceptance Survey for the previous reach if there is a previous reach.

3.6.3 Performance period. The Performance period is specified in Special Clause 53.211-10 Commencement , Prosecution and Completion of Work.

3.6.4 Coordination The Contractor shall coordinate all activities in such a way as not to interfere with other activities in dredging and disposal areas.

3.6.5 The Contractor shall coordinate with all other contractors to ensure smooth operating conditions in accordance with Contract Clause 52.236-8 Other Contracts.

3.6.6. Inherent Delays. The Contractor shall anticipate inherent delays for dredging around obstructions, including but not limited to, cables and moored vessels, and for accommodating marine traffic. Such delays will not be the basis for a contract extension or for an increase in the unit prices for dredged material.

3.6.7 Dredge Prisms

3.6.7.1 Required Dredging Prism: The Required Dredging Prism is defined by the required channel depth and required cannel width (between the channel toes). The total quantity of payable Standard Dredging material shall be the material available in the Required Dredging Prism and the Optional Side slope Prism as determined by the Government pre-dredge survey.

3.6.7.2 Side Slope Prism: Dredging in the Side Slope Prism, as defined in the project plans and specifications, is unauthorized.

3.6.7.3 Allowable Overdepth (Paid) Prism: Dredging in the Allowable Overdepth (Paid) Prism, as defined in the project plans and specifications, is authorized but not required.

3.6.7.4 Allowable Overdepth (Unpaid) Prism: Dredging in the Allowable Overdepth (Unpaid) Prism, as defined in the project plans and specifications, is authorized but not required.

Page 7 of 9 Dredging

3.6.7.5 All Other: Dredging outside of authorized prisms, as defined in the project plans and specification, is unauthorized.

3.6.8 Overflow, Spillage and Leakage: Overflow, spillage and leakage of any and all dredge material or water is prohibited outside of areas specifically authorize in accordance with the project plans, specifications and permits. Any material that is spilled, escapes, leaks, sloughs, or is lost or misplaced outside of authorized areas at any time during operations, to include but not limited to dredging, loading or transporting, shall be retrieved and deposited in accordance with the project plans, specifications and permits.

3.6.8.1 Overflow from Scows: No overflow of dredge material or water is allowed from equipment (dredges, scows, barges, pipelines, etc) during dredge operations.

3.6.8.2 Spill over or leakage of dredge material and water outside of the authorized Dredged Material Management site(s) is prohibited.

3.6.8.3 Barge Filling Areas: Placing or disposing of dredged material outside of authorized Dredged Material Management site(s) is prohibited.

3.6.9 Slurrying of Material: All dredged material shall be slurried prior to disposal to prevent any accumulation or build up of material at the disposal site. Dredged material will be either pumped with a centrifugal pump prior to leaving the dredge site for the disposal site or, if the material is mechanically dredged, passed through a debris grid, with a maximum opening size of 10 inches by 10 inches that will cover the entire loading area of the dump scow. Everything that does not pass through the grid will be considered solid debris and shall be disposed in areas outside of Corps jurisdiction. All such material shall be promptly removed from the grid at the end of each 8 hour shift or sooner.

3.6.10 Barring and Knock-Down Dredging: Barring, dragging and all other methods of bed leveling are prohibited without prior authorization by the Contracting Officer. Descriptions of any proposed barring activities, to smooth out high spots as needed after dredging is complete, shall be incorporated in to the Dredging Plan and shall be allowed after Clamshell dredging operations are completed in order to knock down spikes left in the previously dredged channels.

channels. No separate payment will be made for Barring and Knockdown Dredging. All costs associated with barring and knock-down dredging shall be included in the dredging line items under the payment schedule.

3.6.11 Shoaling: The Contractor shall remove any and all shoaling that occurs within the Required Dredge Prism prior to acceptance of a reach. The Government may direct the

Page 8 of 9 Dredging

Contractor to remove shoaling that occurs within the project limits after acceptance of a reach and prior to completion of the contract.

3.7 DREDGE MATERIAL MANAGEMENT

Dredged Material Management; including the transportation, placement, reuse and/or disposal of dredged material; shall be in accordance with the project drawing, specifications, permits, regulatory guidance and applicable contract clauses. Additional guidance for dredged material management is provided in separate section(s) and appendices of these specifications.

3.7 .1 Overdepth and Excessive Dredging

3.7.1.1 Overdepth. The 2-foot allowable overdepth shown on the drawings is being allowed to ensure removal of sufficient of material to reach project depth and width.

3.7.1.2 No payment will be made for material removed from beyond the allowable overdepth pay-line shown on the drawings.

3.7.1.3 No payment will be made for overdepth material removed in areas already at or below project depth in the Government pre-dredge survey.

3.7.1.4 No payment will be made for material removed from beyond the side slope neat line template.

3.7.2 The Clean Water Act Waste Discharge Requirement and Costal Zone Management Act Consistency Determination for this project support excavation to the characterization depth indicated on the drawings. The Contracting Officer may suspend performance at no cost to the Government when progress payment surveys reveal repeated, continuous, and intentional excavation below this elevation. Upon submittal of a corrective action plan acceptable to the Contracting Officer the Contractor would be permitted to resume work.

3.8 DEMOBILIZATION

3.8.1 General: Demobilization shall include all work required at the completion of the contract work to prepare the Contractor's dredging plant and equipment for shipment and to remove all plant, equipment, labor, unused supplies and incidentals from the job site, including cleaning up any land based staging site used in the prosecution of the work.

3.8.2 Authorization for Demobilizing: Written permission from the Contracting Officer shall be obtained prior to removing construction plant, equipment and materials from the project site.

Structures and facilities prepared or erected for the prosecution of the contract work shall be

Page 9 of 9 Dredging maintained and shall not be dismantled or removed prior to the completion and acceptance of the entire work without the written permission of the Contracting Officer.

-- End of Section --

SECTION 35 20 25

TRANSPORTATION FOR HAMILTON OFF LOADING

PART 1 GENERAL

1.1 INTRODUCTION

This section describes the procedures and methodology associated with the transportation and off loading of dredged material at the Hamilton Wetland Restoration Project through the use a Government-provided offloader that is operated by the Mason-Dutra Joint Venture (MDJV).

Dredged material shall be off loaded, pumped through approximately 35,000 to 40,000 lineal feet of pipeline and placed in upland cells to facilitate wetland restoration.

1.1.1 At this time the Government is unable to predict whether the offloader will be continuously operable during the performance of this contract. In the event the offloader becomes unavailable during the pendency of this work the Government may negotiate for the delivery of the O&M material to be dredged under this contract to an alternative site.

Subject to a reasonably negotiated price, the Government reserves the right to modify this contract to designate an alternative disposal location in accordance with the Changes clause, FAR 52.243-4."

1.2 PAYMENTS PROCEDURES

No separate payment will be made for the work covered under this section of the specifications, and all costs in connection therewith will be considered a subsidiary obligation of the Contractor.

1.3 REFERENCES

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

Department of the Army, U.S. Army Corps of Engineers (USACE)

EM 1110-1-2909

(2005) Geospatial Data and Systems

EM 1110-2-5025

(1991)

Dredging and Dredged Material Disposal tions

) nt of on

USACE / USEPA / BCDC / SFBRWQCB Publica

SF Bay LTMS (2001 Long-Term Management Strategy for the Placeme Dredge Material in the San Francisco Bay Regi

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation. Submittals having an “I” designation are for information only. The following shall be submitted in accordance with SUBMITTAL PROCEDURES Section:

Page 1 of 4 Transportation for Hamilton Off Loading Section 35 20 25

Dredged Material Disposal Site Log (See Appendix 07) I

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION

3.1 GENERAL

All plant and equipment to be used in performing the work shall be of sufficient size and efficiency to meet the job requirement. The Government and other authorized personnel shall be allowed access to all equipment and materials pertaining to this contract for the purposes of monitoring and inspection.

3.2 Hamilton Wetlands Disposal Site. Dredged material shall be transported and delivered by barge or dump scow to Hamilton for offloading and disposal as indicated on the drawings and as described herein. Offloading and disposal of the dredged material will be the responsibility of the Hamilton operator. The Contractor shall coordinate and communicate with the Hamilton operator during the offloading of the dredge material.

3.2.1 The Contractor shall deliver at least 4000-CY of dredged material to Hamilton every working day. The Government will deduct from the Contractor’s earnings $5000 for each production day without a 4000-CY delivery of dredged materials.

3.2.1.1 Deduction Waiver. If the quantity of material delivered for the 4-week period preceding a non-delivery day is at least 5,000CY per production day, the Government will not assess a deduction.

3.2.1.2 Downtime is an operational interruption of a production day longer than 24 consecutive hours. The Contractor is allowed three 24-hour downtime-days per calendar month.

Unused downtime-days do not carry forward to the next month.

3.2.1.3 The Contractor is allowed an additional three 24-hour downtime-days for the duration of the contract. These contract-duration downtime-days shall be used after the monthly allocation has been expended, can be used anytime during the contract and can be used singly or together or with the monthly allocation of downtime-days.

3.2.1.4 The Contractor shall report downtime-days on the daily CQC Report. The Contractor is not required to make a 4000-CY scow delivery on downtime-days. There will be no compensation for unused downtime-days.

3.3. The Hamilton operator, working 24 hours per day – 6 days per week, if necessary, will offload every scow delivering acceptable material to the site, but the Government cannot require the Hamilton operator to offload more than 6,000 CY per production day. The Contractor shall deliver between 4000 CY and 6,000 CY of

Page 2 of 4 Transportation for Hamilton Off Loading dredged material to Hamilton every production day. The Contractor will not be reimbursed for standby time if the Contractor attempts to deliver more than 6,000 CY in a production day and the Hamilton operator cannot accept the excess delivery. The Contractor shall not deliver dredged material to Hamilton on non-working days.

For In-bay Disposal, no disposal barge filled above its load limitation that shall be defined as 90 percent of its load line or 90 percent of visual verification by the on-site Government Representative.

3.3.1 The Contractor shall position the scow (or barge) within reach of the suction boom equipment and shall provide tugboats to maneuver the scow during off-loading at the Hamilton site. The towing vessel, which transports the scow to the Hamilton disposal site, shall maneuver the scow to the off-loader and assist Hamilton personnel securing the scow to the off-loader. The towing vessel shall then move to the designated waiting area and shall wait until the off-loader empties the scow. After completion of the dredge material offloading, the towing vessel shall maneuver itself and provide assistance releasing the scow from the Hamilton off-loader and shall return the scow to the project site.

3.3.2 The Contractor is responsible for all damage done to the wharf structure or to the Hamilton off-loader (Liberty), caused by movement of scows or other vessels under the Contractor’s control. The Contractor is also responsible for all damage caused to the off-loader, sediment pumps and pipeline caused by debris with a dimension greater than 10-inches. See Section 352023 Paragraph 3.3.5 Debris plan.

3.3.3 The Contractor shall coordinate directly with the 3E contractor for the specific dates and times of delivery. The Contractor will provide weekly schedules and estimated quantities to the 3E contractor for proposed delivery at a minimum of 3 calendar days in advance of the following workweek. The 3E contractor may delay offloading, the Contractor scows, as long as the 3E contractor is able to maintain the offloading of 4000-6000 CY of material a day. The Contractor shall record in the daily CQC Report the barge or scow's time of arrival, off-loading period, departure time, size, measurement of the fill line and estimated volume.

3.3.3.1 The Hamilton operator is allowed three 24-hour downtime-days per month, which do not carry forward to the next month.

3.3.3.2 When the Hamilton operator declares a downtime-day, the Contractor is not required to and shall not deliver dredged material to Hamilton. As long as the Hamilton operator has downtime-days for the time that dredged material cannot be accepted at Hamilton, the Contractor will not be entitled to standby costs.

3.3.3.3 The Contractor shall report downtime-days made by 3E Contractor on the Daily CQC report for record in case this delay impacts the Contractor.

Page 3 of 4 Transportation for Hamilton Off Loading

Page 4 of 4 Transportation for Hamilton Off Loading

3.3.4 Standby Cost. For non-downtime production-days, if the Hamilton offloader is unable to offload the Contractor’s schedule 6000 CY of material and this delay impacts the Contractor, the Contracting Officer will request a price proposal from the Contractor for standby cost.

3.4 Overflows: No overflow or decant water shall be discharged from a scow, with the exception of spillage incidental to mechanical dredge operations. During transportation from the dredging site to the off load site, no material shall be permitted to overflow, leak or spill from pipelines, barge, bins or scows.

3.5 Scows and Hopper Barges: All scows and hopper barges used to transport material to the off load site shall have capacity greater than 3,000 cubic yards. All hopper and scow barges shall be debris free and open(without a grid) when arriving at offloader. Pocket bins are prohibited. Hopper or scow combings must be able to fit under the offloader when the hopper barge or scow is empty.

3.5.1 In-bay load Disposal: The speed of scow shall be limited to 8 knots. No disposal barge filled above its load limitation that shall be defined as 90 percent of its load line or 90 percent of bin capacity, whichever governs. The scow shall have the 90 percent load line clearly marked inside of the bin for visual verification by the on-site Government Representative.

3.6 Transport Tugs: All tugs used to transport material to the off load site shall have greater than 2400 horsepower. All transit tug shall be twin screw vessels. The transport tug shall be responsible for docking and departing all hopper barges and scows delivered to Offloader.

Transport tugs shall assist the Offloader tending tug during off loading operations.

3.8 3.7 Manson Dutras Joint Venture: The Manson Dutra Joint Venture can be contacted at:

Contact Information Mailing Address Terry Hammerwold, Project Manager Manson Dutra Joint Venture thammerwold@mansonconstruction.com 3 Hamilton Landing, Suite 110 voice (415) 884-2973 Novato, CA 94949 fax (415) 884-8049

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