Canton_Sluice_Gates_As-Builts_Phase_I_FIO_6-16-16.pdf

Solicitation No. W912BV-16-R-0126

US Army Corps of Engineers Tulsa District Arkansas River Watershed Canton Lake, Oklahoma

Replace Canton Dam Sluice Gates

Phase I – For Information Only, Not for Construction

June 16, 2016

For Inf orm ati on O nly

Replace Canton Dam Sluice Gates CANTONSLUICEFY16

SECTION 01 00 00

SUMMARY OF WORK

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.

The work required includes a new design for the sluice gates, and at the Governments option a new emergency gate design. New gate designs shall become sole property of the Government and may be used for future repair and/or fabrication.

A Detailed Work Plan shall be submitted by the Contractor for review and approval by the Administrative Contracting Officer (ACO) before contract award.

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 CONSTRUCT (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

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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 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 1110-2-2610 (2013) Mechanical and Electrical Design for Lock and Dam Operating Equipment

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 Sluice Gate No. 3 and all appurtenances. Remove and replace control room EDPM roofing, roof slabs, and hoist machinery.

b) Replace two (2) sluice gates, extent of the replacement is the sluice gate and lower hitch/hoist block. Gate and lower hoist/hitch block shall be a new design conforming to current USACE standards.

c) Sluice Gate; design and construction in accordance with ETL 1110-2-584 DESIGN OF HYDRAULIC STEEL STRUCTURES, cleaning, preparing, and painting, delivery, and testing of new Sluice Gates No.1 and No.3, and all appurtenances. Designer of Record (DOR) shall be responsible for editing specifications as noted herein. The following components of design shall be included as part of the Design Document Record (DDR), per USACE engineering standards (EM's, ER's, and ETL's):

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* Complete Calculations per USACE engineering and design standards, to include any and all modeling files. All computer aided modeling and computer aided design (both commercial and A/E proprietary based software) shall be back-checked by hand verifying, all reactions and member forces for each design load and load combination. Design calculations shall include comparison of original design weight and new gate design weight and associated centers of gravity.

* Design Drawings shall include, but not limited to: all member sizes, overall size and tolerances limits, weld performance and inspection requirements, over all center of gravity, overall/final dry weight (including mechanically attached appurtenances).

* Mechanical and Operational Loadings, to include hydraulic and vibrational modeling, shall be calculated per referenced engineering standards.

* Mechanical design shall include appropriate material selection and testing for use with existing components and environmental conditions.

* Gates are operated under various conditions and opening heights for flow control, design considerations and loading analysis shall take full operating ranges into account.

* All connections must be detailed and designed by DOR, not the fabricator.

* Fracture prone detailing is prohibited; Fracture Control Plan (FCP), shall be provided in accordance with ETL 1110-2-584 and

ER 1110-2-8157.

* DOR shall provide Operations and Maintenance guidance per

ER 1110-2-8157.

d) Provide and install all new gate seals, gate frame seals, bottom (conduit) sill plate, and hardware. Seals shall be machined after assembly to stop all leaks.

e) Remove, transport, disassemble, clean, facilitate Government inspection, rehabilitate, blast, paint, reassemble, and reinstall original Emergency Gate (Government to identify which E-Gate).

f) Clean, facilitate Government inspection, rehabilitate, blast, and paint sluice gate (No.1 and No.3) conduit Liners, air vents, gate frames, gate frame extensions, and side roller guides.

g) Remove, transport, disassemble, clean, facilitate Government inspection, rehabilitate, blast, paint, and reinstall dogging devices.

h) Provide traffic control for the duration of the contract.

i) Perform dewatering, dehumidification, and control for water for the duration of the contract.

j) The paint systems shall be System 5-E-Z for sluice and emergency gates, lower gate hoisting blocks, and dogging devices. System 23-A-Z

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For Inf orm ati on for conduit liners, air vents, gate frames, gate frame extensions, and side roller guides.

Option 1

Upon Government inspection of Emergency Gate (item e in base bid), Government may elect to move forward with Option 1.

a) Emergency Gate; design, construction, and install. Design shall follow all requirements of Sluice Gate design as annotated in Base Bid.

Option 2

a) Construction and installation of additional Emergency Gate and requisite appurtenances.

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

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

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

1.5 DETAILED WORK PLAN REQUIREMENTS

A Detailed Work Plan shall be submitted. The plan shall include as a minimum details for all work listed in paragraph: GENERAL PROJECT DESCRIPTION above. The plan shall include detailed design, fabrication, and construction methods and procedures, names of all subcontractors, staffing (including each profession/trade/skill, number of profession/trade/skill, and team or crew sizes), all software and equipment (including version, make, size, capacity, and weight), and a detailed explanation of how each task (design, fabrication, inspection, and installation) will be accomplished. In addition, the work plan shall include:

a. Methods for machining all seals to insure sluice and emergency gates do not leak after installation. Methods for ensuring the gates function correctly through entire operational ranges.

b. Methods and details for containment, removal, and disposal of blast media and paint to meet all Federal, state, and local laws, and regulations. While preventing damage to existing Government property and equipment.

c. Work site access route for personnel, materials, and equipment, SECTION 01 00 00 Page 4

For Inf orm ati on work platform construction, and locations (if necessary). Methods to contain dust and debris.

d. Procedures for gate removal and reinstallation, minimizing stress on the gates/hoist connections during the vertical-to-horizontal transition when repositioning.

e. Methods for control of water and humidity.

f. Any additional information as directed by the ACO.

1.6 APPLICABLE CRITERIA

The Contractor shall design and construct, deliver, and test two (2) new sluice gates and rehabilitate or replace emergency gate(s) 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. If the technical criteria of a listed standard conflict with those of another, the Contractor shall request clarification from the ACO before proceeding with the design. 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 uncited standards.

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 1110-2-2610 Mechanical and Electrical Design for Lock and Dam Operating Equipment 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

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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 Repr.

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

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For Inf orm ati on through future contract modifications.

1.10 CONSTRUCTION WORK HOURS AT CANTON DAM PROJECT SITE

Construction work hours at Canton Dam project site shall be Monday through Friday, 7:00 a.m. to 4:30 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

Canton Lake Website http://www.swt.usace.army.mil/Locations/TulsaDistrictLakes/Oklahoma/CantonLake.aspx

Canton Lake Reservoir Data http://www.swt-wc.usace.army.mil/CANT.lakepage.html

Monthly charts for Canton Lake from Nov 1994 http://www.swt-wc.usace.army.mil/CANTcharts.html

Any conclusions drawn by the Contractor from this data are done so at the Contractor's risk.

1.12 GATES TO REMAIN IN SERVICE/WATER RELEASES

In order for the Government to make water releases and maintain operational capability of the sluice gates and outlet works, only one gate and one conduit may be out of service at any given time.

Two types of water releases will be made and may impact he Contractor's operations: water supply releases and flood releases.

Water supply releases will be made from the service gates/outlet works as necessary to supply water to Oklahoma City. Water supply will not be compromised to accommodate any work under this contract. The Government will give 24 hours advance notice to the Contractor when water supply releases and/or gate changes are made for water supply purposes.

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 service gates for flood damage purposes. The Contractor's on-site superintendent shall be accessible to communications from the Government at all times and will be notified of gate changes by the Government. 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 continuously prepared to move, secure, and protect work areas, marine plant, equipment, and personnel from flood releases.

1.13 LIMITED ACCESS

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

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1.14 PRESENCE OF LEAD

The paint on all items to be painted contains lead. The Contractor shall test the paint for lead prior to removal/blasting. All paint, solvents, and blast media shall be contained and disposed of offsite by the Contractor.

PART 2 PRODUCTS (NOT APPLICABLE)

PART 3 EXECUTION

3.1 SLUICE AND EMERGENCY GATE DESIGN

New sluice 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. The design of both the sluice and emergency gates shall be such that they will function in any gate slot, emergency or service, for at least a temporary period.

The following specifications sections are examples of those to be completed by the DOR, shall include (but not limited to):

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 cathodic 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.

This historical information shall be considered by the Contractor during the design of the sluice gates.

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.

UFGS Section 05 50 23.16 STRUCTURAL WELDING shall be edited by the DOR and submitted to the Government for acceptance.

UFGS Section 05 05 23.13 ULTRASONIC INSPECTION OF WELDMENTS shall be edited by the DOR and submitted to the Government for acceptance.

UFGS 09 97 02 PAINTING: HYDRAULIC STRUCTURES shall be edited by the DOR, in conformance with paint requirements stated herein, and submitted to the Government for acceptance.

The Contractor shall include weight and center of gravity calculations of the proposed gates for comparison to the Contractor calculated weight of the existing gates as originally constructed.

The combined weight of the new gates, seals, hardware, and paint included shall not exceed the calculated weight of the existing gates by more than 10 percent. The center of gravity of the new gates 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,"

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For Inf orm ati on 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 Canton Water Control Manual. Seals shall be designed by the DOR. Specifications shall not be edited to make the specification less restrictive than the UFGS specifications.

3.2 CONSTRUCTION OF SLUICE 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 less than 1 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 less than 1 gpm leakage per gate criterion is met. Final payment shall not be made until the CO or ACO has verified that the less than 1 gpm leakage per gate criterion has been met for each gate.

The Contractor shall salvage the chains and rollers from each existing sluice 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 LOCATION OF WORK

All work shall be performed on Government property at Canton Lake, or at an approved location as directed by the ACO. The Contractor shall provide all necessary facilities (gates, fences, gravel, office trailers, storage buildings, fuel tanks, etc.) 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 turfing) before the contract is deemed to be complete by the Government. Payment may be withheld pending acceptable obliteration of these Contractor provided/erected facilities.

The Contractor may propose to perform the work at a remote location within 40 road miles of Canton Dam. Approval of work at the remote location shall be subject to the sole approval of the ACO, with no explanation of denial necessary.

3.4 TRANSPORTATION OF GATES

The Contractor is advised to exercise great caution while placing and lifting the gates to and from the transport trailer. These gates were originally transported in an upright position, and do not have dedicated lifting eyes installed. Instead, there is a hoist connection plate at the top of the gate, and a great amount of stress is placed on the gate during the vertical-to-horizontal transition.

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3.5 REMOVAL OF GATE HOIST AND GATE

The hoist unit weights approximately 13,000 pounds and the gate approximately 29,000 pounds. Government personnel will place the gates in the "dogged" position prior to removal by the Contractor. The Contractor shall remove roof panels, disconnect all power from the hoist unit, disconnect and remove hoist cables, remove any appendages from the hoist unit necessary to remove it without damage, remove platform with handrail, and remove the hoist unit and gate and transport them to the work area.

The gate repair and work area shall be in the vicinity of the Project Office as directed by the Contracting Officer. The hoist unit and gate shall be placed on blocks, cleaned and prepped by the Contractor for Government inspection, either rehabilitated or disposed of as directed by the ACO.

3.6 DEWATERING AND CONTROL OF WATER

The Contractor shall be responsible for all dewatering and control of water. The Contractor is advised that water supply and flood releases from the other service gate will impact the construction operations.

3.7 DETAILED WORK REQUIREMENTS

In addition to the requirements in paragraph GENERAL PROJECT INFORMATION above, the following detailed requirements shall be a part of this contract.

3.7.1 Inspections and Reports

All inspections shall be performed in the presence of the Government's Quality Assurance Representative (QAR). Reports of all inspections shall be provided to the ACO in both hard copy printed (8-1/2" x 11") and electronic (pdf) form. Sketches shall be included as necessary to fully describe inspection results and documentation of completed repairs. The Contractor shall received approval from the ACO before reassembly of components begins.

3.7.2 Inspect Gates and Conduit Liners for Metal Loss from Corrosion

The Contractor shall inspect all service and emergency gates and conduit liners for corrosion pits and loss of metal. All pits 1/4" or deeper shall be documented (mapped) and repaired by welding. Documentation (mapping) shall include size, depth, and location of pits.

3.7.3 Paint Systems for Gates, Conduit Liners, and Appurtenances

The Contractor shall blast and paint all service and emergency gates, conduit liners, gate frames, gate frame extensions, and roller guides in accordance with Section 09 97 02 - Painting: Hydraulic Structures.

3.7.4 New Gate and Gate Frame Seals and Hardware

After painting of each sluice gate and gate frame is properly completed, new gate and gate frame seals and hardware shall be installed by the Contractor. After installation, the seals shall be machined to prevent all leaks.

3.7.5 Rehabilitate Dogging Devices

The Contractor shall disassemble, clean, inspect, blast, paint, and

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For Inf orm ati on reassemble all eight dogging devices. The Contractor shall replace bent trip rods with new trip rods. All parts except dog pins and trip rod pins shall be blasted and painted with System 5-E-Z in accordance with Section 09 97 02 - Painting: Hydraulic Structures. Replace all hardware (washers, cotter pins, and nuts) with new hardware.

3.7.6 Dewatering, Control of Water, and Control of Humidity

The Contractor shall be responsible for all dewatering, control of water, and control of humidity. The Contractor is advised that low flow and flood releases from the other service gate and tainter gates will impact the construction operations.

3.7.7 Cleaning and Inspection of Salvaged Parts for Re-Use

All existing parts identified by the Government for salvage and re-use shall be cleaned by low-pressure power washing in accordance with SSPC SP 12/NACE No.5. After power washing, the Contractor shall notify the Quality Assurance Representative (QAR) that the salvaged part is available for inspection. The salvaged part shall not be reinstalled until approval for re-use is granted by the QAR.

3.7.8 Tightening Requirements for Fasteners

Unless indicated otherwise, steel fasteners shall be tightened to the following torques: 3/8 inch diameter = 16 ft-lbs, 7/16 inch diameter = 25 ft-lbs, 1/2 inch diameter = 40 ft-lbs, 9/16 inch diameter = 55 ft-lbs, 5/8 inch diameter = 75 ft-lbs, 3/4 inch diameter = 100 ft-lbs, 7/8 inch diameter = 150 ft-lbs, 1 inch diameter = 200 ft-lbs. Tolerance on torque values is plus or minus 10%. Lubricants shall not be used on fasteners.

The Contractor shall have a torque wrench available at the work site at all times for use by the ACO.

3.7.9 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.

3.8 REINSTALLATION OF GATE HOIST AND GATE

The gate shall be placed in the "dogged" position, the hoist unit reinstalled, appendages reinstalled, platform installed, power reconnected, cable installed, and roof panels replaced and sealed. Any areas of the gate or hoist unit damaged during removal or reinstallation shall be repaired by the Contractor. Roof panels shall be sealed and new EPDM roofing installed. After the gate and hoist unit are declared ready for service by the Contractor, an operational test shall be performed to assure that the gate and hoist unit are satisfactory, and that all limit switches are in proper adjustment.

3.9 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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37/1 OUTLET WORKS- SERVICE & EMERGENCY GATES GENERAL ASSEMBLY - SERVICE AND EMERGENCY GATE LINER AND ANCHORAGE 37/2 OUTLET WORKS- SERVICE & EMERGENCY GATES SERVICE GATE - SERVICE GATE ASSEMBLY

37/3 OUTLET WORKS- SERVICE & EMERGENCY GATES SERVICE GATE - WHEEL DETAILS

37/4 OUTLET WORKS- SERVICE & EMERGENCY GATES SERVICE AND EMERGENCY GATES - SEALS AND STRUCTURAL DETAILS

37/5 OUTLET WORKS- SERVICE & EMERGENCY GATES SERVICE GATE - LINER AND GUIDES I

37/6 OUTLET WORKS- SERVICE & EMERGENCY GATES SERVICE GATE - LINER AND GUIDES II

37/7 OUTLET WORKS- SERVICE & EMERGENCY GATES EMERGENCY GATE - EMERGENCY GATE ASSEMBLY

37/8 OUTLET WORKS- SERVICE & EMERGENCY GATES EMERGENCY GATE - WHEEL DETAILS

37/9 OUTLET WORKS- SERVICE & EMERGENCY GATES EMERGENCY GATE - LINER AND GUIDES

55/1.1 MECHANICAL SERVICE GATE HOIST - EQUIPMENT ARRANGEMENT

55/2 MECHANICAL SERVICE GATE HOIST - CYLINDER ASSEMBLY & DETAILS

55/3 MECHANICAL SERVICE GATE HOIST - CYLINDER STEM & MISCELLANEOUS DETAILS

55/4.1 MECHANICAL SERVICE GATE HOIST - HYDRAULIC SYSTEM, PLAN, ELEVATIONS, AND DETAILS

55/5 MECHANICAL SERVICE GATE HOISTS - HYDRAULIC SYSTEM, SCHEMATIC

69/1.2 MECHANICAL WET WELL SLIDE GATES - PLAN, ELEVATIONS, AND DETAILS

69/2.1 MECHANICAL AIR VENT PIPING - PLAN, SECTIONS & DETAILS

69/3.6 MECHANICAL LOW FLOW & DOMESTIC WATER SUPPLY PLAN AND DETAILS

69/5.3 MECHANICAL LOW FLOW SLIDE GATE

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