Denison_Dam_Sources_Sought_ATT.pdf

APPENDIX 1: Purpose and Objectives

SUMMARY OF WORK

08/11

PART 1 GENERAL

1.1 GENERAL PROJECT DESCRIPTION

This project will be a total turn-key, Design-Build (D-B) contract with all design and construction work being performed by the Contractor. The Contractor shall provide all investigation, verification of site conditions and dimensions, design, research, travel, plant, materials, equipment, labor, instruments, tools, subcontractors, supervision, and management to complete all work required by these contract documents.

Requirements stated in this contract are minimums. Innovative, creative, and life cycle cost effective solutions which meet or exceed these requirements are encouraged.

1.2 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 ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO LRFD BRIDGE DESIGN (2010) LRFD Bridge Design Specifications, 6th Edition

AASHTO LRFD BRIDGE CONSTRUCTS (2010) LRFD Bridge Construction Specifications, 3rd Edition

AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)

ACI 318 (2014; Errata 2014) Building Code Requirements for Structural Concrete and Commentary

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 325 (2011) Steel Construction Manual, 14th Edition

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2010; Errata 2011) Structural Welding Code - Steel

AWS D1.5/D1.5M (2010) Bridge Welding Code

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-270-03 (2001; Revised 2006) Concrete Crack and Partial-Depth Spall Repair

UFC 3-270-04 (2001; Revised 2006) Concrete Repair

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

EM 1110-2-1602 (1980) Hydraulic Design of Reservoir Outlet Works

EM 1110-2-2002 (1995) Evaluation and Repair of Concrete Structures

EM 1110-2-2400 (2003) Structural Design and Evaluation of Outlet Works

EM 1110-2-2704 (2004) Cathodic Protection Systems for Civil Works Structures

EM 1110-2-3400 (1995) Painting: New Construction and Maintenance

ER 1110-2-8157 (2009) Responsibility for Hydraulic Steel Structures

ETL 1110-2-584 (2014) Design of Hydraulic Steel Structures

Design criteria is listed below.

1.3 SCOPE OF WORK

The work in this contract shall include:

Base Bid

a) Removal and disposal off Government property of existing Flood Gate No. 16 and all appurtenances.

b) Design and construction in accordance with ETL 1110-2-584 DESIGN OF HYDRAULIC STEEL STRUCTURES, cleaning, preparing, and painting with Paint System 5-E-Z, delivery, and testing of new Flood Gate No. 16 and all appurtenances. Designer of Record (DOR) shall be responsible for editing specifications as noted herein.

c) Contractor to coordinate with ACO for locations of eased edges/corners to facilitate safe and proper installation of gate in existing slots.

d) Contractor shall coordinate and install new lifting brackets to accommodate Government-provided pins.

Lifting bracket locations shall be positioned to facilitate the re-use of existing equipment and rigging.

e) The gate frame liner for Gate 16 shall be replaced from the bottom of conduit liner to two feet above the top of conduit liner.

f) Contractor shall inspect all concrete surfaces upstream to the bulkhead and downstream of Flood Gate No. 16 for any erosion or spall areas. Contractor shall provide repairs to all areas noted in the inspection, subject to Government approval.

g) Design and construction in accordance with ETL 1110-2-584 DESIGN OF HYDRAULIC STEEL STRUCTURES, cleaning, preparing, and painting with Paint System 5-E-Z, delivery, and testing of new Emergency Gate.

Option 1

Construction of additional Emergency Gate.

Option 2

a) Design and construction in accordance with "Omaha Steel Works" shop drawing 16795-14, four sets of Service Gate dogging devices in Service Gate Slot No's. 7,8,9, & 10. Cleaning, preparing, and painting in accordance with Paint System 5-E-Z. Work to include delivery, installation, and testing of new dogging devices.

b) Design and construct a permanent, movable work platform for performing installation and maintenance of dogging devices.

See PART 3 - EXECUTION below for detailed work requirements.

1.4 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. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Detailed Work Plan; G Drawings; G Design Analysis; G

Including but not limited to load cases, load combinations, all assumptions, and modeling parameters

Specifications; G;

Shop Drawings; G Submittal Register; G Certificates of Insurance; G Surety Bonds; G List of Contractor and Subcontractor Personnel; G List of Proposed Materials, Equipment, and Products; G Construction Progress Schedule; G Schedule of Prices; G Safety Plan; G Crane Placement Plan; G Activity Hazard Analysis; G Confined Space Entry Plan; G Fall Protection Plan; G Contractor Quality Control Plan; G Care of Water Plan; G Environmental Protection Plan; G Gate Replacement Contingency Plan; G Spare Parts List; G

See Contract Clauses, other sections of the specifications, and paragraphs below for detailed submittal requirements.

1.5 DETAILED WORK PLAN REQUIREMENTS

Before contract award, the Contractor shall submit a Detailed Work Plan to the Government for review, comment, Contractor revision(s), and final Government acceptance. The final Government accepted Detailed Work Plan shall become a binding part of the contract. The Detailed Work Plan shall be in accordance with the document "Detailed Work Plan Requirements" at the end of this section.

1.6 APPLICABLE CRITERIA

The Contractor shall design and construct, deliver, and test one new flood gate and emergency gate, gate seals, and appurtenances in accordance with the following Engineering Manuals (EMs), Engineering Regulations (ERs), Engineering Technical Letters (ETLs), industry standards, and references. These documents shall establish the concept or basis for the new gate system design. These requirements are minimum standards and may be exceeded by the Contractor. The extent of development of these requirements in no way relieves the Contractor from his responsibility of completing the design, construction documentation, and construction of the gates in conformance with applicable codes and criteria. The Contractor shall request clarification from the ACO before proceeding with the design, if the technical criteria of a listed standard conflict with those of another. The Contractor shall be responsible for obtaining clarification of any unresolved ambiguity in standards before proceeding with design or construction. All EMs, ERs, ETLs, and standards specifically cited in this section shall have precedence over other standards not cited.

1.6.1 USACE CRITERIA

The following EMs, ERs, and ETLs shall be incorporated into the project, as a minimum:

EM 1110-2-1602 Hydraulic Design of Reservoir Outlet Works EM 1110-2-2002 Evaluation and Repair of Concrete Structures EM 1110-2-2400 Structural Design and Evaluation of Outlet Works EM 1110-2-2704 Cathodic Protection Systems for Civil Works Structures EM 1110-2-3400 Painting: New Construction and Maintenance ER 1110-2-8157 Responsibility for Hydraulic Steel Structures ETL 1110-2-584 Design of Hydraulic Steel Structures

Note: ETL 1110-2-584, Design of Hydraulic Steel Structures supersedes both EM 1110-2-2701, Engineering and Design-Vertical Lift Gates and EM 1110-2-2105, Design of Hydraulic Steel Structures.

EMs are available at http://www.publications.usace.army.mil/USACEPublications/EngineerManuals.aspx

ERs are available at http://www.publications.usace.army.mil/USACEPublications/EngineerRegulations.aspx

ETLs are available at http://www.publications.usace.army.mil/USACEPublications/EngineerTechnicalLetters.aspx

1.6.2 INDUSTRY STANDARDS AND CRITERIA

The following industry standards and criteria shall be incorporated into the project, as applicable:

AASHTO LRFD BRIDGE DESIGN LRFD Bridge Design Specifications 6th Ed.

AASHTO LRFD BRIDGE CONSTRUCT LRFD Bridge Construction Specs. 3rd Ed.

ACI 318 Building Code Requirements for Structural Concrete and Commentary AISC 325 Steel Construction Manual, 14th Edition AWS D1.1/D1.1M Structural Welding Code - Steel AWS D1.5/D1.5M Bridge Welding Code UFC 3-270-03 Concrete Crack & Partial-Depth Spall Repair.

UFC 3-270-04 Concrete Repair

Relevant ASTM and UFGS documents

UFGS documents are available at http://www.wbdg.org/ccb/browse_org.php?o=70.

1.7 SITE VISIT

An authorized Contractor representative in conjunction with the ACO and technical representatives shall conduct a site visit at the project site/gate tower. The purpose of the site visit will be to meet with project representatives and discuss this Summary of Work. The site visit will also allow the Contractor the opportunity to examine the existing project site conditions.

1.8 AS-BUILT DRAWINGS

As-built drawings of existing structures and facilities are provided for informational purposes only and are not to be assumed as true existing as-built conditions. The Contractor shall be responsible for investigating and verifying actual dimensions and conditions. Contractor developed as-built drawings, shop drawings, and Operation & Maintenance (O&M) manuals shall be as required in Sections 01 33 16 and 01 78 00.

All documents submitted to the Government shall be the property of the Government. The Government may duplicate, use, and disclose in any manner and for any purpose all documents delivered under this contract. The Contractor shall include this requirement in all contracts with subcontractors and suppliers.

1.9 VERIFICATION OF SITE CONDITIONS

The Contractor shall obtain all required information, measurements, dimensions, etc. necessary to field verify all existing conditions and dimensions and provide the specified Detailed Work Plan and all other necessary submittal information. If there are existing conditions that appear to affect the proposed construction, the Contractor shall inform the ACO in writing before proceeding with any manufacturing or construction processes, including ordering of materials. The Contractor shall photograph the site and structure in connection with the project to document the initial conditions. One copy of all pictures taken shall be furnished the ACO at the time of the first review of the Detailed Work Plan. Digital photographs each with 5 megapixel minimum resolution and 5"x7" color hard copies of each photograph shall be provided on photograph quality paper by the Contractor to the ACO. Work outside the original scope of work shall be accomplished only at the direction of the ACO through future contract modifications.

1.10 CONSTRUCTION WORK HOURS AT DENISON DAM PROJECT SITE

Construction work hours at Denison Dam project site shall be Monday through Thursday, 7:00 a.m. to 4:30 p.m and Friday, 7:00 a.m. to 3:30 p.m. unless otherwise requested in writing by the Contractor and approved in writing by the ACO. The Contractor shall not work during legal United States Code Federal holidays unless prior approval is granted in writing by the ACO.

1.11 RESERVOIR INFORMATION AND HISTORICAL DATA

Lake Texoma/Denison Dam Website http://www.swt.usace.army.mil/Locations/TulsaDistrictLakes/Oklahoma/LakeTexoma.aspx

Lake Texoma/Denison Dam Reservoir Data http://www.swt-wc.usace.army.mil/DENI.lakepage.html

Monthly charts for Lake Texoma/Denison Dam from Nov 1994 http://www.swt-wc.usace.army.mil/DENIcharts.html

Any conclusions drawn by the Contractor from this data are done so at the Contractors’ own risk.

1.12 WATER RELEASES

All gates not repaired in this contract shall remain in service at all times. Water releases may impact the Contractor's operations. Two types of water releases will be made: low flow releases and flood releases.

Low flow releases will be made from the flood/service gates/outlet works as necessary. The Government will give 24 hours advance notice to the Contractor when water releases and/or gate changes are made.

Flood releases will be made as required for flood damage reduction. The Contractor shall develop a plan to remove all construction scaffolding and equipment in less than 24 hours in order for the Government to operate the emergency gates for flood damage reduction purposes. In flood release emergencies, every effort will be made to give the Contractor 24 hours notification of gate changes. The Contractor shall constantly monitor weather conditions and forecasts and be prepared for potential emergency conditions. The Contractor shall be prepared to secure and protect current working areas and personnel from flood releases. The Contractor's on-site superintendent will be notified of gate changes by the Government. Voice mail notification will be made when Government personnel are unable to contact the superintendent in person.

1.13 LIMITED ACCESS

The Contractor shall enter and exit the project site only through Government approved access points as directed by the ACO.

1.14 SPECIAL REQUIREMENTS FOR CRANES

Government personnel will operate the gate house gantry crane and hoist equipment to remove and install the flood gates as needed for the Contract during normal working hours. The Contractor shall give the Government 48 hours advance notice before any use of the gantry crane is required. The Contractor shall not operate the gantry crane or any other Government hoist equipment.

Once a gate has been removed from the gate slot by the Government, the Government will set the gate on a Government-owned trailer for transportation to the powerhouse. The Government will move the trailer and gate from the gate tower area to the powerhouse. Once the gate is at the powerhouse, the Government will operate the powerhouse crane to offload the gate onto the Contractor's trailer for transportation offsite for disposal. The existing emergency gates will not be scraped. The existing emergency gates will be retained by the Government.

Newly constructed gates shall be delivered to the powerhouse by the Contractor. The procedure described above will be reversed for the installation of each new gate.

1.15 PROGRESS AND COMPLETION PICTURES

Photographically document site conditions prior to start of construction operations. Provide monthly, and within one month of the completion of work, digital photographs, 1600x1200x24 bit true color minimum resolution in JPEG file format showing the sequence and progress of work. Take a minimum of 20 digital photographs each week throughout the entire project from a minimum of ten views from points located by the ACO. Submit a view location sketch indicating points of view. Submit with the monthly invoice two sets of digital photographs each set on a separate CD-R, cumulative of all photos to date. Photographs for each month shall be in a separate monthly directory and each file shall be named to indicate its location on the view location sketch. The view location sketch shall also be provided on the CD as digital file. All file names shall include a date designator.

Cross reference submittals in the appropriate daily report. Photographs shall be provided for unrestricted use by the Government.

PART 2 PRODUCTS

All products, equipment, and materials shall be equivalent or better than existing.

PART 3 EXECUTION

3.1 FLOOD AND EMERGENCY GATE DESIGN

New flood and emergency gates shall be designed to LRFD (Load and Resistance Factor Design) Code. The Contractor shall provide the design, including all possible load cases and combinations per the EMs, ERs, and ETLs listed herein. Loads on the gates shall include but not be limited to: gravity loads, hydrostatic loads, hydrodynamic loads, equipment loads, earthquake loads, and down-pull forces. The Contractor shall consider fatigue and fracture critical members in the design of the gates. UFGS Section 05 59 13 FABRICATION OF HYDRAULIC STEEL STRUCTURES shall be edited by DOR and submitted to the Government for acceptance.

Fracture critical members shall be identified on the drawings. The Contractor shall include in the design sacrificial anode cathodes protection. UFGS Section 26 42 14.00 10 CATHODIC PROTECTION SYSTEM (SACRIFICIAL ANODE) shall be edited by the DOR and submitted to the Government for acceptance. Design and construction for the flood gate shall include design and construction of gate frame seals that are compatible with the flood gate seals. Historical project and design information has been provided (see Other Documents - Historical Information). This historical information shall be considered by the Contractor during the design of the flood gates. The design of both the flood gates & emergency gates shall be such that they will function in any gate slot, emergency or service, for at least a temporary period. Leakage limits per paragraph 3.2 do not apply to this interoperability requirement.

Seals on the new gates shall incorporate a center bulb seal by Seals Unlimited Inc. as shown on sketch attached at the end of this section.

UFGS Section 05 50 15 ROLLER CHAINS shall be edited by the DOR and submitted to the Government for acceptance. Roller Chains on the new gates shall be provided in accordance with this document.

The Contractor shall include weight and center of gravity calculations of the proposed gates for comparison to the Government-calculated weight of the existing gates as originally constructed. The Government calculated weight of the existing gates as originally constructed weighs approximately 45,000 pounds. The combined weight of the new gates, seals, hardware, and paint included shall not exceed the Government calculated weight of the existing gates by more than 10 percent. The center of gravity of the new gate shall be in the same location as the existing gate as indicated herein.

The complete design including design specifications, computations, and fabrication and installation drawings shall be certified by the DOR. The DOR shall meet all requirements of ER 1110-2-8157 Par 6.c "qualifications," be a registered Professional Engineer with a minimum of 5 years experience designing hydraulic structures, and shall be submitted to the ACO for approval. Approval of the design by the ACO shall not relieve the Contractor of responsibility for design and performance of the gates. Design elevation shall come from the Tulsa District Pertinent Data Book, March 2004 edition. Maximum pool elevation shall be 666.4. Seals shall be designed by the DOR. Specifications for the seals shall be edited as applicable and submitted to the Government for approval prior to purchasing the seals. Specifications shall not be edited to make the specification less restrictive than the UFGS specifications.

Gates shall be painted with vinyl paint system 5-E-Z in accordance with Section 09 97 02 PAINTING: HYDRAULIC STRUCTURES which shall be edited by the DOR and submitted to the Government for acceptance.

3.2 CONSTRUCTION OF FLOOD AND EMERGENCY GATES

The gates shall be fabricated by an AISC certified fabricator with an AISC Category CBR and shall be endorsed to produce fracture critical members and connections. The Contractor shall be responsible for verifying all dimensions of existing structures and appurtenances. Once installed, the new gates and new gate frame seals shall provide a seal that allows not more than 10 gallons per minute leakage per gate. The contractor shall provide a technical representative to be present during testing of newly installed gates and gate frame seals. The technical representative(s) shall make the necessary adjustments (i.e. field milling and/or adjustment of the seals) to ensure the 10 GPM leakage per gate criterion is met. Final payment shall not be made until the CO or ACO has verified that the 10 GPM leakage per gate criterion has been met for each gate.

The contractor shall salvage the chains and rollers from each existing flood gate that is replaced. These salvaged chains and rollers shall remain onsite and be used as spare parts. The CO or ACO shall designate a storage area for the salvaged chains and rollers. The contractor shall move and store the salvaged chains and rollers in the Government designated area.

3.3 SPECIAL REQUIREMENTS AND LIMITATIONS

The Contractor shall:

a) give a minimum of 30 calendar days notice to the ACO before initial delivery of a gate;

b) deliver gates one at a time with subsequent gate deliveries scheduled after installation and testing of the previous gate is successfully completed;

c) give powerhouse personnel seven calendar days to remove or set a gate starting on the date the gate is made available to the Government to remove or set;

d) remove the gate from the intake deck to a place set aside in the powerhouse parking lot if adjustments to the gate are required;

e) obtain approval from the ACO to demolish and dispose of old gate after the new gate is successfully installed and tested; and

f) demolish the old gate on the intake deck within three calendar days. Existing equipment shall be protected and repaired if damaged during demolition.

3.4 DOGGING DEVICE DESIGN

At a minimum, the dogging device design per "Omaha Steel Works" shop drawing 16795-14, shall be validated to current codes, and new drawings created in accordance with Section 01 33 16 DESIGN AFTER AWARD.

Any additions or revisions to the original design shall be specifically noted as such in the submitted design analysis.

Included in the design shall be a permanent, movable work platform for performing installation and maintenance of dogging devices. Platform shall meet the following parameters:

Platform shall function in both emergency and service gate slots.

Platform shall hang from the existing edges of the gate slots, without any modification to the existing structure.

Floor of platform shall be 6 feet below the level of the operating deck to allow working access to the dogging devices while not requiring the use of a fall arrest system.

Floor of platform shall match the outline of the gate well with minimal gaps to prevent tools or materials from dropping into the well. In addition, toe boards shall extend above the bottom of the operating deck floor. This is anticipated to be approximately 20" high.

Platform shall be designed to be moved with a four point sling and the gantry crane. When not in use, the platform shall sit upright on any flat surface or dunnage.

In addition to normal live loads, platform shall be capable of supporting two dogging devices and 1000 lbs of tooling

3.5 DOGGING DEVICE MANUFACTURE AND INSTALLATION

Service gate slots 7, 8, 9, and 10 have existing provisions for dogging devices. These existing provisions, as well as the new dogging devices and actuating linkages, shall be cleaned, prepared, and painted in accordance with Paint System 5-E-Z. New dogging devices and actuating linkages shall be manufactured and installed in these eight locations. Working platform designed per previous section shall be constructed and utilized for the installation of dogging devices, both for worker safety and to prevent damage from tools, materials, equipment, or other items falling into the gate well.

3.6 SAFETY

All work shall be in accordance with EM 385-1-1 and all subsequently issued interim changes.

3.7 OPERATION OF EMERGENCY GATE AND DEWATERING/CONTROL OF WATER

One emergency gate is available onsite for use during this contract. Only one flood gate shall be taken out of service at a time. The Government will operate the emergency gate as required to isolate and provide access to flood gate areas of work. The Contractor is hereby informed that the emergency gate will leak. The Government will not dewater the conduits and work areas. The Contractor shall be fully responsible for all dewatering (including initial dewatering) and control of water. The Contractor shall maintain a completely dry work environment in order to properly perform the work as shown and specified. The Contractor shall provide all dewatering pumps, materials, equipment, fuels, lubricants, hoses, and piping, downstream bulkheads (if necessary), and all other appurtenances necessary to dewater the work area and maintain a dry work environment.

3.8 CONTRACTING STAGING AREA

The Government will designate a staging area for Contractor use. The Contractor shall provide all necessary facilities and utilities. The Government will provide no facilities. The Contractor shall obliterate all facilities and return the area to its pre-contract state (including grading and replacing turf as necessary) before the contract is deemed to be complete by the Government. Payment may be withheld pending acceptable obliteration of these facilities.

3.9 EXISTING MATERIAL & EQUIPMENT

Unless otherwise noted or specified by the ACO, all material, equipment, and debris permanently removed from the gate tower and conduit structure shall be the property of the Contractor and shall be legally disposed of Government property at no additional cost to the Government.

3.10 PROTECTION OF GOVERNMENT PROPERTY

In addition to all contract requirements to protect Government property, the Contractor shall take particular care to protect the gantry crane and gate hoist operating machinery assemblies, which are highly susceptible to damage by dust, blast media, and debris. The Contractor shall not drill holes or otherwise alter or deface any existing structure unless requested in writing with proposed repair methods and approved in writing by the Contracting Officer.

3.11 ANTI-SEIZE COMPOUND ON HARDWARE

Before assembly, the Contractor shall coat all threads on hardware, nuts, bolts, and screws with an approved anti-seize compound. Compound shall be submitted for approval by the ACO before use.

3.12 CLEAN UP

After completion of construction, the Contractor shall clean all Contractor-generated blast media and construction debris from Government property. The Contractor shall ensure that all drain holes are completely open.

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