26-63 Attachment D Special Specifications.pdf

360-001

1 - 2

Special Provision to Item 360 – Concrete Pavement (GFRP)

Item 360, “Concrete Pavement” of the Standard Specifications is amended with respect to the clauses cited below. No other clauses or requirements of this Item are waived or changed.

2.2. Reinforcing Steel. Replace this section with the following:

2.2. Reinforcing. Reinforcing shall be steel or Glass Fiber Reinforced Polymer (GFRP) as indicated in the plans.

Provide Grade 60 or above, deformed steel for bar reinforcement in accordance with Item 440, "Reinforcement for Concrete" or provide deformed GFRP bar reinforcement in accordance with Special Specification 4270.

Provide positioning and supporting devices (baskets and chairs) capable of securing and holding the reinforcing bars in proper position before and during paving. Where GFRP bars are indicated, these devices shall be plastic or other approved non-ferrous material.

2.2.1. Dowels. Replace this section with the following:

2.2.1. Dowels. Provide smooth, straight dowels of the size shown on the plans, free of burrs, and conforming to the requirements of Item 440, “Reinforcement for Concrete.” or Special Specification 4270 "Glass Fiber Reinforced Polymer (GFRP)" Coat dowels with a thin film of grease, wax, silicone or other approved de-bonding material.

Provide dowel caps on the lubricated end of each dowel bar used in an expansion joint. Provide dowel caps filled with a soft compressible material with enough range of movement to allow complete closure of the expansion joint.

2.2.2. Tie Bars. Replace this section with the following:

2.2.2. Tie Bars. Provide straight deformed steel or GFRP tie bars. Provide either multiple-piece steel tie bars or single-piece steel or GFRP tie bars as shown on the plans. Furnish multiple piece tie bar assemblies from the list of approved multiple-piece tie bars that have been prequalified in accordance with DMS-4515, “Multiple Piece Tie Bars for Concrete Pavements,” when used. Multiple-piece tie bars used on individual projects must be sampled in accordance with Tex-711-I, and tested in accordance with DMS-4515 “Multiple Piece Tie Bars for Concrete Pavements.”

2.5. Epoxy. Replace this section with the following:

2.5. Epoxy. Provide Type III, Class C epoxy in accordance with DMS-6100, “Epoxies and Adhesives,” for installing all drilled-in reinforcing. Submit a work plan and request approval for the use of epoxy types other than Type III, Class C.

3.4. Reinforcing B Inserting Equipment. Replace this section with the following:

3.4. Reinforcing Bar Inserting Equipment. Provide inserting equipment that accurately inserts and positions reinforcing bars in the plastic concrete parallel to the profile grade and horizontal alignment in accordance to plan details when approved.

4.3. Reinforcing Steel and Joint Assemblies. Replace this section with the following:

4.3. Reinforcing and Joint Assemblies. Accurately place and secure in position all reinforcing as shown on the plans. Place dowels at mid-depth of the pavement slab, parallel to the surface. Place dowels for transverse contraction joints parallel to the pavement edge. Tolerances for location and alignment of dowels will be shown on the plans. Stagger the lap locations so that no more than 1/3 of the longitudinal reinforcing is spliced in any given 12-ft. width and 2-ft. length of the pavement. Use multiple-piece tie bars, drill and epoxy grout tie bars, or, if approved, mechanically-inserted single-piece tie bars at longitudinal construction joints. Verify that tie bars

360-001

2 - 2 that are drilled and epoxied or mechanically inserted into concrete at longitudinal construction joints develop a pullout resistance equal to a minimum of 3/4 of the yield strength of the bar after 7 days. Test 15 bars using ASTM E488, except that alternate approved equipment may be used. All 15 tested bars must meet the required pullout strength. Perform corrective measures to provide equivalent pullout resistance if any of the test results do not meet the required minimum pullout strength. Repair damage from testing. Acceptable corrective measures include but are not limited to installation of additional or longer tie bars.

4.3.1. Manual Placement. Replace this section with the following:

4.3.1. Manual Placement. Secure reinforcing bars at alternate intersections with wire ties or locking support chairs.

Tie all splices with wire. Use only non-ferrous materials with GFRP bars.

4.3.2. Mechanical Placement. Replace this section with the following:

4.3.2. Mechanical Placement. Complete the work using manual placement methods described above if mechanical placement of reinforcement results in misalignment or improper location of reinforcing, poor concrete consolidation, or other inadequacies.

4.4. Joints. Replace this section with the following:

4.4. Joints. Install joints as shown on the plans. Joint sealants are not required on concrete pavement that is to be overlaid with asphaltic materials. Clean and seal joints in accordance with Item 438, “Cleaning and Sealing Joints.” Repair excessive spalling of the joint saw groove using an approved method before installing the sealant. Seal all joints before opening the pavement to all traffic. Install a rigid transverse bulkhead, for the reinforcing bars, and shaped accurately to the cross-section of the pavement when placing of concrete is stopped.

4.4.2.1. Continuously Reinforced Concrete Pavement (CRCP). Replace this section with the following:

4.4.2.1. Continuously Reinforced Concrete Pavement (CRCP). Install additional longitudinal reinforcement through the bulkhead when shown on the plans. Protect the reinforcing bars immediately beyond the construction joint from damage, vibration, and impact.

4.4.2.3. Curb Joints. Replace this section with the following:

4.4.2.3. Curb Joints. Provide joints in the curb of the same type and location as the adjacent pavement. Use expansion joint material of the same thickness, type, and quality required for the pavement and of the section shown for the curb. Extend expansion joints through the curb. Construct curb joints at all transverse pavement joints. Place reinforcing bars into the plastic concrete pavement for non-monolithic curbs as shown on the plans unless otherwise approved. Form or saw the weakened plane joint across the full width of concrete pavement and through the monolithic curbs. Construct curb joints in accordance with Item 529, “Concrete Curb, Gutter, and Combined Curb and Gutter.”

2024 Specifications 3003

1 - 2 06-24 Districtwide

Special Specification 3003

Concrete Pavement Wide Flange Terminals

1. DESCRIPTION

Construct wide flange terminals for concrete pavement.

2. MATERIALS

Furnish materials conforming to the following:

Item 360, “Concrete Pavement,”

Item 421, “Hydraulic Cement Concrete,”

Item 440, “Reinforcement for Concrete,” and

Item 442, “Metal for Structures.”

Use ASTM A 36 steel for wide-flange structural steel. Shop-fabricate wide-flange beams in accordance with the plans. Unless otherwise shown on the plans, wide-flange beams are not required to be welded or spliced at longitudinal construction joints.

3. CONSTRUCTION

Construct concrete pavement wide flange terminals in accordance with the plans.

3.1. Excavation, Backfilling, and Base Preparation. Excavate and backfill in accordance with Item 400, “Excavation and Backfill for Structures,” and the plans. Avoid over-excavation. Restore subgrade and base layers damaged by excavation. Construct subgrade, base, and pavement layers in accordance with the plans.

3.2. Reinforcement and Structural Steel. Secure reinforcement in position before concrete placement in accordance with Item 440, and the plans. Accurately secure wide-flange beams in position in accordance with the plans and with sufficient supports to safely maintain alignment during concrete placement and finishing.

3.3. Concrete Placement and Finishing. Use Class P hydraulic cement concrete. Place hydraulic concrete pavement in accordance with Item 360, Place bridge approach slabs in accordance with Item 422, “Concrete Superstructures.”

3.4. Opening to Traffic. Open concrete pavement terminal to traffic in conformance with Item 360.

4. MEASUREMENT

This Item will be measured by the foot of concrete pavement terminal complete in place. Measurement will be made perpendicular to the direction of the flow of traffic.

This is a plans quantity measurement Item. The quantity to be paid is the quantity shown in the proposal, unless modified by Article 9.2, “Plans Quantity Measurement.” Additional measurement or calculations will be made if adjustments of quantities are required.

2024 Specifications 3003

2 - 2 06-24 Districtwide

5. PAYMENT

The work performed and the materials furnished in accordance with this Item and measured as specified under “Measurement” will be paid for at the unit price bid for “Wide Flange Pavement Terminals.”

This price is full compensation for excavation, disposal of waste material, backfilling, 12 in. cement treatment, hydraulic cement concrete (sleeper slab and support slab) underneath the concrete pavement, joint material, reinforcing steel, wide-flange beams, equipment, materials, labor, tools and incidentals.

Subgrade treatment, asphalt concrete, base material, and curbing required by the plans will be measured and paid for in accordance with pertinent Items. Concrete pavement constructed as part of the concrete pavement terminal will be paid for under Item 360, “Concrete Pavement.”

2024 Specifications 4003

1 - 2 10-23 Statewide

Special Specification 4003 Thermal Integrity Profiler (TIP) Testing of Drilled Shafts

1. DESCRIPTION

Perform the nondestructive testing (NDT) method termed “Thermal Integrity Profiler (TIP) testing” by obtaining records of the heat generated by curing cement (hydration energy) to assess the quality of drilled shafts. TIP measurements that are colder than normal indicate necks, inclusions, or poor-quality concrete, while warmer than normal measurements are indicative of bulges. Variations of temperatures between tubes reveal cage eccentricity. Furnish all materials, equipment, and labor necessary to conduct TIP testing on production-drilled shafts. The TIP testing must be in accordance with ASTM D7949, except as noted in this Specification.

2. EQUIPMENT

Supply all materials and equipment required to perform TIP tests. Equipment to perform the test must have the following minimum requirements.

2.1. Probe or Wire Option. A computer-based TIP data acquisition system for display of signals during data acquisition (probe only option) or to monitor temperature versus time after casting (wire only option).

2.2. Probe Only Option. Thermal probe with four infrared sensors equally spaced at 90° around the perimeter that read temperatures of the tube wall to within 1°F accuracy. The probes must be less than 1-1/4 in. in diameter and must freely descend through the full depth of properly installed access tubes in the drilled shafts; have one depth encoder sensor to determine probe depths; and be capable of collecting data at user-specified depth increments.

2.3. Wire Only Option. Ability to collect data at user-defined time intervals (typically 15–60 min.).

3. TESTING PROCEDURE

Conform to testing procedures in accordance with ASTM D7949.

4. TEST RESULT REPORTING

Submit a written report within 5 working days of completion of testing. The report must present results of TIP tests by including the following.

4.1. Graphical Displays. Provide graphical displays of all temperature measurements (probes or wires) versus depth.

4.2. Significant Temperature Deviations. Report indication of unusual temperatures, particularly significantly cooler local deviations of the average at any depth from the overall average over the entire length, in either probe or thermal wire measurements.

4.3. Overall Average Temperature. This temperature is proportional to the average radius computed from the actual total concrete volume installed (assuming a consistent concrete mix throughout). Radius at any point can then be determined from the temperature at that point compared to the overall average temperature.

2024 Specifications 4003

2 - 2 10-23

4.4. Temperature Variation. Report variations in temperature between tubes (at each depth) that in turn correspond to variations in cage alignment. Where concrete volume is known, report the cage alignment or offset from center.

4.5. Shaft-Specific Information. Report shaft-specific construction information (e.g., elevations of the top of shaft, bottom of casing, and bottom of shaft) when available. These values must be noted on all pertinent graphical displays.

5. MEASUREMENT

This Item will be measured by each successful test that is approved. Quantities of TIP testing must be shown on the plans.

6. PAYMENT

The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for each “Thermal Integrity Profiler (TIP) Testing of Drilled Shaft” of size and type specified. This price is full compensation for material, equipment, labor, work, tools, and incidentals.

2024 Specifications 5014

1 - 2 08-24

OTU

Special Specification 5014 Stainless Steel Flap Gate

1. DESCRIPTION

Furnish and install a stainless steel flap gate to provide a corrosion-resistant, rustproof automatic drainage and backflow prevention system, as shown on the plans and in accordance with this Specification.

2. MATERIALS

Provide the following information to confirm accordance with the Specification in addition to the submittal requirements specified.

Complete description of materials, including the material thickness of structural components of the frame, cover, lugs, hinge links, bushings, and washers Installation drawings showing details of construction, details required for installation, dimensions, and anchor bolt locations Maximum bending stress and deflection of the gate under the maximum design head, appearing in the order they are referenced, no matter how fleeting the reference.

2.1. Quality Assurance. Furnish equipment specified under this Section from a single manufacturer.

The Specification is based on the stainless steel flap gate in accordance with Table 1.

Table 1

Summary of Parts and Material Types Components Materials

Frame and cover Stainless steel ASTM A276, AISI Type 304, 304L, 316, 316L Pivot lug Stainless steel ASTM A276, AISI Type 304, 304L, 316, 316L Hinge link Stainless steel ASTM A276, AISI Type 304, 304L, 316, 316L Bushings and washers Commercial bronze, non-metallic, UHMWPE ASTM D4020 Anchor studs, hardware 18-8 stainless steel, Type 304 or 316 Seals Neoprene ASTM D2000 Grade 2, EPPDM ASTM D2000

3. CONSTRUCTION

Provide a stainless steel frame of flatback design, with seating surface inclined from vertical at least 2° for gates 6 in.–36 in. in diameter, and 1.5° for gates 36 in. and larger to ensure positive closure. For flatback gates mounted to thimbles, flanges, or concrete wall, drill the gate flange to match.

Supply a cover fabricated of stainless steel with reinforcing ribs, designed to withstand the seating head specified. Provide a lifting eye for manually lifting the cover.

Provide seating surfaces for the frame and cover with ethylene propylene diene monomer (EPDM), neoprene J-seal with stainless steel retainer.

Provide a gate with an adjustable, double-pivoted hinge linkage designed to permit complete seating, full opening, and with stops or other arrangements to prevent the cover from rotating enough to become wedged in the open position. Mount adjustable pivot lugs to the frame to allow adjustment of hinge links without having to remove the cover from the gate. Provide hinge links made of bronzed bushed stainless steel or a non-metallic plastic, ultra-high molecular weight polyethylene (UHMWPE). Use Type 18-8 stainless steel, 316, 304, as specified for assembly hardware.

2024 Specifications 5014

2 - 2 08-24

OTU

3.1. Installation. Install gates and appurtenances in an efficient manner. Handle, store, and install the equipment specified in this Specification in strict conformance with the manufacturer’s recommendations.

Review the installation drawings and installation instructions before installing the gates.

Fill any void between the guide frames and the structure with non-shrink grout as shown on the installation drawing and in conformance with the grout manufacturer’s recommendations.

3.2. Field Testing. After installation, field-test the gates in the presence of the Contractor and the Department to ensure that items of equipment are in full accordance with this Specification.

4. MEASUREMENT

This Item will be measured by each flap gate furnished and installed of the size specified.

5. PAYMENT

The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Flap Gate Valve” of the various sizes and types specified. This price is full compensation for materials, labor, equipment, tools, and incidentals.

2024 Specifications 6009

1 - 2 01-25

OTU

Special Specification 6009

ITS System Integration

1. DESCRIPTION

This Item will govern the integration of all furnished equipment and software as shown on the plans, as detailed in this Special Specification, and as directed. Furnish, install, test, and integrate all traffic management hardware and software into the Advanced Traffic Management System (ATMS) and the Department or local Traffic Management Center (TMC), as specified in the plans. The Contractor must select, install, and integrate the equipment and software as required to achieve a complete and fully operational Traffic Management System (TMS) as shown on the plans, as detailed in this Special Specification, and as directed.

2. SYSTEM EQUIPMENT AND INSTALLATION

Install, interconnect, test, integrate, and make all new equipment fully operational with system in accordance with the National Electrical Code (NEC).

Select, install, and integrate all new equipment and software as required to achieve a complete and fully operational system as shown on the plans, as detailed in this Special Specification, and as directed.

3. SYSTEM INTEGRATION

Provide an end-to-end communication system for integration into the Department or local TMCs. Equipment includes, but is not limited to proposed and existing:

Bluetooth Detectors (when shown on the plans), Closed-Circuit Televisions (CCTV) equipment (when shown on the plans), Dynamic Message Signs (DMS) equipment (when shown on the plans), Highway Advisory Radios (HAR) (when shown on the plans), Hub Cabinets, Hub Buildings and Environmentally Controlled Underground Vaults (ECUV) (when shown on the plans), Lane Control Signs (LCS) equipment (when shown on the plans), Lane Management Systems (LMS) (when shown on the plans), Fiber optic cable (when shown on the plans), Radar Vehicle Sensing Devices (RVSD) equipment (when shown on the plans), Traffic Signals (when shown on the plans), Radar Vehicle Detection Systems (RVSD) for Traffic Signals (when shown on the plans), Wireless Communication Systems (when shown on the plans), Wrong Way Driver Detection Systems (WWD) (when shown on the plans), Video Imaging Vehicle Detection Systems (VIVDS) (when shown on the plans), Roadway Weather Information Systems (RWIS) (when shown on the plans), Over Height Vehicle Detection Systems (when shown on the plans), Low Water Crossing Systems (when shown on the plans), Cellular Modems (when shown on the plans), and

Equipment not on this list but shown on the plans and General Notes.

2024 Specifications 6009

2 - 2 01-25

OTU

Provide, install, and make operational a complete and functional system. Install and integrate all field, central, and communications components.

Perform work inside proposed or existing enclosures, when required, including re-routing, re-assignment, re-wiring, reconfiguration, re-switching, and re-cabling, based on the proposed configuration as shown in the plans and as detailed in the specifications. Perform all work in accordance with the plans and as necessary to achieve a fully functional and operational system, including all re-routing, terminations, connections, splicing, and re-assignments.

4. TESTING, TRAINING, DOCUMENTATION, FINAL ACCEPTANCE AND WARRANTY

All testing, training, documentation, final acceptance and warranty requirements will be in accordance with Special Specification, “Testing, Training, Documentation, Final Acceptance, and Warranty.”

5. MEASUREMENT

The complete “System Integration” item as detailed in the plans and described in the specifications will be measured as a lump sum unit.

6. PAYMENT

The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “ITS System Integration.” This price shall be full compensation for preparing, furnishing, and installing all materials, equipment, and incidentals necessary to provide an integrated system. Items not specifically mentioned or addressed in this specification but are necessary for a complete and operational system as described herein, shall be provided by the Contractor and will not be paid for directly, but shall be considered incidental to this Item.

2024 Specifications 6011

1 - 18 10-24

Special Specification 6011

Intelligent Transportation System (ITS) Pole with Cabinet

1. DESCRIPTION

Furnish, install, relocate, or remove Intelligent Transportation System (ITS) pole structures and pole mounted cabinets of the various types and sizes at locations shown on the plans, or as directed.

1.1. ITS Equipment Application. At a minimum, the ITS pole structure serves as the structural support for the following ITS equipment applications:

closed circuit television (CCTV), fixed video, microwave vehicle detector (MVD) or radar vehicle sensing device (RVSD), bluetooth equipment, wireless radio equipment, environmental sensor station (ESS), solar power system, and pole mounted cabinets.

Ensure the equipment, design, and construction use the latest available techniques with a minimum number of different parts, subassemblies, circuits, cards, and modules to maximize standardization and commonality.

Design the equipment for ease of maintenance. All component parts must be readily accessible for inspection and maintenance. The only tools and test instruments required for maintenance by maintenance personnel must be simple hand-held tools, basic meters, and oscilloscopes.

2. MATERIALS

Provide materials that are in accordance with the details shown on the plans or as directed, the requirements of this Item, and the pertinent requirements of the following Items:

Item 416, “Drilled Shaft Foundations”

Item 421, “Hydraulic Cement Concrete”

Item 440, “Reinforcement for Concrete”

Item 441, “Steel Structures”

Item 442, “Metal for Structures”

Item 445, “Galvanizing”

Item 449, “Anchor Bolts”

Item 496, “Removing Structures”

Item 618, “Conduit”

Item 620, “Electrical Conductors”

Item 740, “Graffiti Removal and Anti-Graffiti Coating.”

2.1. Anchor Bolts. Provide anchor bolts, nuts, and washers that are in accordance with the details shown on the plans, the requirements of this Item, and Item 449, “Anchor Bolts.”

2 - 18 10-24 Statewide

Furnish “medium strength, mild steel” anchor bolts for anchor bolts 1 in. or less in diameter, unless otherwise shown on the plans. Furnish “alloy steel” anchor bolts for anchor bolts greater than 1 in. diameter, unless otherwise shown on the plans.

2.2. ITS Poles. Provide material for pole shafts that is in accordance with the requirements on the plans and the requirements of ASTM A1011 SS Grade 50, A572 Grade 50, A1011 HSLAS Grade 50, or A595 Grade A.

Material thicknesses in excess of those stipulated under A1011 will be acceptable, providing it meets all other ASTM A1011 requirements and the requirements of this Specification. A595 Grade A material must have a minimum of 50 ksi yield strength adjacent to base welds after fabrication.

Fabrication plants that produce steel ITS poles must be approved in accordance with DMS-7380, “Steel Non- Bridge Member Fabrication Plant Qualification.” The Department maintains an MPL of approved ITS pole fabrication plants.

2.3. ITS Pole Mounted Cabinet. Provide ITS pole mounted cabinets to house ITS field equipment as shown on the plans or as directed. ITS equipment applications inside the cabinet may include, but is not limited to:

CCTV field equipment, fixed video, radar vehicle sensing device (RVSD), dynamic message sign (DMS) or lane control signal (LCS) controller, bluetooth equipment, highway advisory radio (HAR), media conversion equipment, hardened ethernet switch, wireless radio equipment, environmental sensor station (ESS), roadway weather information system (RWIS), and solar power system.

Provide the cabinet with fully wired back panels, with all the necessary terminal boards, wiring, harnesses, connectors, and attachment hardware for each cabinet location. Place all terminals and panel facilities on the lower portion of the cabinet walls below all shelves.

Typically, an ITS pole mounted cabinet may contain, but is not limited to, the following:

19-in. EIA rack, adjustable shelves, fan and thermostat, cabinet light, back panel, surge protection, terminal strips, interconnect harnesses with connectors, “Door Open” connection to back panel, ITS equipment hardware (as listed in Section 2.3.), and all necessary installation and mounting hardware.

Ensure all cabinets are identical in size, shape, and quality for each type as provisioned on the plans or as directed. Equip and configure the cabinet setup as defined in this Specification and as detailed in the ITS pole with cabinet standards.

Submit details of the cabinet design and equipment layout for each cabinet to the Engineer for review and approval before fabrication.

https://ftp.dot.state.tx.us/pub/txdot-info/cst/DMS/7000_series/pdfs/7380.pdf

3 - 18 10-24 Statewide

2.4. Electrical Requirements.

2.4.1. Primary Input Power Interruption. Use material that meets all the requirements in Section 2.1.4., “Power Interruption” of the National Electrical Manufacturers Association (NEMA) Standard TS2 for traffic control system, or most current version.

2.4.2. Power Service Transients. Use material that meets all the requirements in Section 2.1.6., “Transients” of the NEMA Standard TS2 for traffic control system, or most current version.

2.4.3. Power Service Protection. Ensure that equipment contains readily accessible, manually resettable, or replaceable circuit protection devices (such as circuit breakers or fuses) for equipment and power source protection. Provide circuit breakers or fuses sized such that no wire, component, connector, PC board, or assembly is subjected to sustained current in excess of their respective design limits upon failure of any single circuit element or wiring.

2.4.4. Power Distribution Panel. Provide cabinets with a 120 VAC +/- 5 VAC power distribution panel. Provide the following components on the panel:

2.4.4.1. Duplex Receptacles. Provide two 120 VAC NEMA Type 5-15R duplex receptacles, or as shown on the plans, protected by a circuit breaker. Permanently label duplex receptacles “For Internal ITS Equipment Only.” Install duplex receptacles in an isolated location and provide a clear 1/8 in. thick removable cover made from transparent thermoplastic material to cover the duplex receptacles. Ensure this cover is installed as not to interfere with the functional operation within the cabinet and allows enough space to plug in AC adapters and any necessary equipment. Submit alternative cover material for approval as part of the documentation submittal requirement.

2.4.4.2. Ground Fault Circuit Interrupter (GFCI) Duplex Receptacles. Provide at least one 120 VAC NEMA Type 5-15R GFCI duplex receptacle, or as shown on the plans, protected by a circuit breaker. This GFCI duplex receptacle is intended for maintenance personnel and is not to be used to serve equipment inside the cabinet. Permanently label GFCI duplex receptacles “For Personnel Use.” Install GFCI duplex receptacles in a readily accessible location.

Provide a 120 VAC, rack mountable outlet strip with 6 NEMA Type 5-15R receptacles with surge suppression. Plug outlet strip into GFCI duplex receptacle and label for personnel use.

Circuit Breakers. Determine the ampere rating, quantity, and configuration for main, accessory, spare, and equipment circuit breakers to support ITS equipment loads as shown on the plans. Provide Underwriters Laboratories (UL) 489 listed circuit breakers capable of operating in accordance with Section 2, “Environmental Standards and Test Procedures” of NEMA TS2-2003, or most current version. Provide circuit breakers with an interrupt capacity of 5,000 A. and insulation resistance of 100 megohms at 500 VDC.

Provide minimum ampere rating for the following circuit types:

2.4.4.2.1. Main Breaker. Size the main circuit breaker such that the load of all branch circuits is less than the main circuit breaker ampere rating in conformance with the most current version of the National Electrical Code

(NEC).

2.4.4.2.2. Accessory Breaker. Minimum 15 A. Size accessory circuit breaker to protect lighting, door switches, fans, and GFCI duplex receptacle in conformance with the most current version of the NEC.

2.4.4.2.3. Equipment Breakers. Minimum 15 A. Size equipment circuit breaker to protect ITS equipment and duplex receptacles in conformance with the most current version of the NEC.

2.4.4.2.4. Spare Equipment Breaker. Minimum 20 A. Provide one spare equipment breaker for future use.

Furnish breakers, which are in addition to any auxiliary fuses, with the electronic equipment to protect component parts. Provide 3-terminal lightning arrestor to protect the load side of all circuit breakers. Connect

4 - 18 10-24 Statewide the arrestor into the circuit with size 8 AWG or larger stranded copper conductors. Connect arrestor to the line filter as recommended by the manufacturer.

2.4.4.3. Power Line Surge Protection. Provide and install power line surge protection devices that meet the requirements of Section 2.6.

2.4.4.4. Power Cable Input Junction Terminals. Provide power distribution blocks suitable for use as a power feed and junction points for 2 and 3 wire circuits. Accommodate up to No. 4 AWG conductors on the line side of each circuit. Provide appropriately sized lugs at the junction terminals for conductors larger than a No. 4 AWG when shown on the plans.

Electrically isolate the AC neutral and equipment ground wiring from the line wiring by an insulation resistance of at least 10 megohms when measured at the AC neutral. Color code the AC neutral and equipment grounding wiring white and green respectively in conformance with the most current version of the

NEC.

Utilize the back panel to distribute and properly interconnect all cabinet wiring related to the specific complement of equipment called out on the plans. Each item of equipment including any furnished by the Department must have the cable harness properly terminated at terminal boards on the back panel. Ensure all functions available at the equipment connector are carried in the connector cable harness to the terminal blocks from the power distribution panel mounted on the left side panel of the cabinet.

2.4.5. Alternative Power Option. When shown on the plans, accommodate renewable electrical power source for the design load specified in accordance with “ITS Solar Power System” Specification. Renewable electrical power source may, or may not, be integrated with public utility electrical services, as shown on the plans or as directed. Accommodate solar system components including batteries and solar charge controller when shown on the plans.

2.4.6. Wiring. Ensure all cabinet wiring identified by insulated pre-printed sleeving slipped over the wire before attachment of the lug or making the connection. Supply enough text on wire markers in plain words or abbreviations with enough level of detail so that a translating sheet will not be required to identify the type and size of wire.

Cut all wires to the proper length before assembly. Ensure no wires are doubled back to take up slack.

Ensure harnesses to connectors are covered with braided cable sleeves. Secure cables with nylon cable clamps.

Provide service loops to facilitate removal and replacement of assemblies, panels, and modules. Use insulated parts and wire rated for at least 600 V. Color-code harnesses and wiring.

Route and bundle all wiring containing line voltage AC separately and shield from all low voltage, i.e., control circuits. Cover all conductors and live terminals or parts, which could be hazardous to maintenance personnel, with suitable insulating material.

Provide AC internal cabinet wiring identified in accordance with the most current version of the NEC. Provide white insulated conductors for AC neutral. Provide green insulated conductors for equipment ground. Provide any color different from the foregoing on other conductors in accordance with the most current version of the NEC. For equipment that requires grounding, provide grounding conductors, and do not use conduit for grounding. Provide No. 22 AWG or larger stranded conductors for internal cabinet wiring. Provide conductors that are UL-listed THHN in accordance with the most current version of the NEC. Ensure the insulation has at least a thickness of 10 mm. Ensure all wiring containing line voltage is at least size No. 14 AWG. No strands of any conductor may be trimmed to “fit” the wiring into the breaker or terminal block.

2.4.7. Terminal Strips. Provide terminal strips located on the back panel that are accessible to the extent that it is not necessary to remove the electronic equipment from the cabinet to make an inspection or connection.

Ensure terminal blocks are 2 position, multiple pole barrier type.

5 - 18 10-24 Statewide

Provide shorting bars in each of the positions provided along with an integral marking strip.

Arrange terminal blocks such that they will not upset the entrance, training, and connection of incoming field conductors.

Identify all terminals with legends permanently affixed and attached to the terminal blocks.

Ensure not more than three conductors are brought to any one terminal screw.

Ensure no electrically energized components or connectors extend beyond the protection afforded by the barriers.

Locate all terminal blocks below the shelves.

Ensure terminals used for field connections are secure conductors by means of a No. 10-32 nickel or cadmium plated brass binder head screw.

Ensure terminals used for interwiring connections, but not for field connections, are secure conductors by means of a No. 5-32 nickel plated brass binder head screw.

Terminate all connections to and from the electronic equipment to an interwiring type block. These blocks will act as intermediate connection points for all electronic equipment input and output.

Provide termination panels that are used to distribute and properly interconnect all cabinet wiring related to the specific complement of equipment as shown on the plans. Provide properly terminated cable harnesses for each item including any furnished by the Department. Provide all functions available at the equipment terminals that are carried in the connector cable harness.

2.4.8. Cabinet Internal Grounding. The cabinet internal ground consists of at least one ground bus-bar permanently affixed to the cabinet and connected to the grounding electrode.

Use bare stranded No. 4 AWG copper wire between bus-bars and between the bus-bar and grounding electrode when providing multiple bus-bars.

Ensure each copper ground bus-bar has a minimum of 12 connection points, each capable of securing bare conductor ranging in size from No 4 AWG to No 14 AWG.

Return AC neutral and equipment ground wiring to these bus-bars.

2.4.9. Door Switch. Provide door switch meeting the following requirements:

momentary, pin-type door switch:

installed in the cabinet or on the door: and connected to a terminal so that the equipment installed in the cabinet can confirm input is connected to logic ground when the cabinet door is open.

Provide two momentary, pin type door switches for each door provided with the cabinet. Wire one switch to turn on the cabinet lights when the door is open and off when the door is closed. Wire the other in parallel to a terminal block to detect a cabinet intrusion condition.

2.5. Mechanical Requirements.

2.5.1. Size and Construction. Provide ITS pole mounted cabinets meeting the configuration types detailed in the Statewide ITS pole with cabinet standards.

6 - 18 10-24 Statewide

Table 1 Minimum Cabinet Internal Dimensions

Depth (in.) Width (in.) Height (in.)

Type 1 121 24 24

Type 2 18 24 36

Type 3 20 24 41

1. Minimum dimension for cabinet provided without EIA 19 in. rack assembly.

Provide 18 in. minimum depth when providing EIA 19 in. rack assembly.

Determine the suitability of the listed cabinet configuration types for the equipment at each field location identified on the plans or as desired.

2.5.2. Ventilation. Provide the cabinet with vent openings to allow cooling of electronic components.

Locate louvered air intake vent openings on the lower portion of the cabinet doors and covered fully on the inside with a commercially available disposable three layer graded pleated type filter of minimum size 6 in.

(high) x 12 in. (wide) for Type 1 cabinet and 12 in. (high) x 16 in. (wide) for Type 2 and 3 cabinets. Size the louvered intake area and filter to allow maximum filtered air flow and cooling, securely mounted so that any air entering the cabinet must pass through the filter. Ensure the cabinet opening for intake of air is large enough to accommodate filter size. Screen the exhaust to prevent entry of insects. Provide the screen openings no larger than 0.0125-sq. in.

Provide a minimum of two thermostatically controlled fans that are adjustable with an adjustment range of 70 to 110°F. Provide a press-to-test switch to test the operation of the fan. Provide a fan with a capacity of at least 110 cfm each.

There is no opening on the roof of the cabinet.

2.5.3. Lighting. Provide minimum 15 W fluorescent fixtures above each door inside the cabinet, each with clear shatter proof lens. NEMA TS2 rated light-emitting diode (LED) fixtures are acceptable instead of fluorescent light fixtures. Determine the appropriate number of fixtures to achieve at least 1000 lumens to illuminate the equipment. Position the fixtures to provide illumination to the face of the equipment in the cabinet and not into a technician’s eyes.

2.5.4. Exterior Finish. Provide cabinets with a smooth aluminum finish and the exterior in its unpainted natural color.

When shown on the plans or as directed, provide cabinets with an anti-graffiti coating in accordance with Item 740, “Graffiti Removal and Anti-Graffiti Coating.”

2.5.5. Serial Number. Provide the cabinets with a serial number unique to the manufacturer, preceded by an assigned two-letter manufacturer’s code. Provide at least a 0.2 in. letter height. Stamp the entire identification code and number on a metal plate which is riveted to the cabinet, stamp directly on the cabinet wall, or engrave on a metalized mylar plate that is epoxied on the upper right hand cabinet side wall.

2.5.6. Modular Design. Provide cabinets that have a modular design and allows ITS equipment to be installed in a variety of mounting configurations as detailed on the plans or as directed.

Provide Type 1 and Type 2 cabinets with two unistrut or DIN rail channels on each side wall of the cabinet for mounting power panel and auxiliary ITS equipment. Provide a 19 in. EIA rack assembly only when noted on the plans or in the General Notes.

Provide Type 3 cabinets with an EIA 19 in. rack assembly, sized appropriately based on cabinet type inside height dimension and is accessible from either door. Provide a rack with a minimum of one 1RU (RU = rack

7 - 18 10-24 Statewide unit) horizontal power strip. Provide two unistrut or DIN rail channels on each side wall of the cabinet for mounting power panel and auxiliary ITS equipment.

2.5.7. Shelves. Provide adjustable shelves in each cabinet as required to support the equipment as specified on the plans. Ensure shelf adjustment at 1 RU intervals in the vertical position. Provide shelves that can be mounted to an EIA 19 in. rack cage or unistrut channel as detailed in the standards.

Provide shelves that are removable and capable of supporting the electronic equipment. Provide a minimum of 2 in. between the back and front edge of the shelf to back inside wall and door of the cabinet respectively to allow room for the equipment cables and connectors.

Provide each cabinet type with at least one slide out drawer with telescoping drawer guides to allow full extension from the rack frame. Provide at least 1.75 in. (high) x 16 in. (wide) drawer sized appropriately for the cabinet with a hinged lid to allow access to storage space.

2.5.8. Mounting Hardware. Provide cabinets with the appropriate “U” channel mounting brackets, stiffening plates, anchor bolts, and any other necessary hardware to mount the cabinet on the ITS pole structure. Provide mounting brackets made of 0.250 in. thick steel.

Weld cabinet mounting plates to the pole. This may be done in the field for transport reasons. Do not band the cabinet or mounting plates to the pole. Design the cabinet for pole mounting and reinforce at the points of attachment to the pole.

2.6. Surge Protective Devices (SPD). Provide SPDs to protect electronics from lightning, transient voltage surges, and induced current. Install SPDs on all power, data, video, and any other conductive circuit.

2.6.1. 120 V or 120/240 V SPD at Service and ITS Cabinet Power Distribution Panel. Install an SPD at the closest termination or disconnection point where the supply circuit enters the cabinet. Locate the SPD on the load side of the cabinet power distribution panel breakers and ahead of any and all electronic devices. Keep leads as short as possible with all conductor bends formed to the maximum possible radius. Connect the SPD ground lead directly to the ground bus. Use of wire nuts is prohibited. Install in conformance with manufacturers recommendations.

Provide UL Listed Type 1 or Type 2 SPD and labeled to UL1449 Third Edition, posted at UL.com, under Certifications UL Category Code VZCA, and have a 20 kA I-nominal rating. Provide SPD rated as NEMA 4.

SPD with integral EMI/RFI line filtering may be required if shown on the plans.

Do not exceed 700 V on the voltage protection rating (VPR) on any mode (L-N, L-G, and N-G).

Do not exceed 150 V on the maximum continuous operating voltage (MCOV).

Equal or exceed 40 kA the SPD surge current rating per mode (L-N), (L-G), (N-G).

Equal or exceed 50 kA or the available short circuit current, whichever is higher for the SPD short circuit current rating (SCCR).

Provide SPD with directly connected metal oxide varistors (MOV) exceeding 32 mm in diameter with thermal safety disconnectors. Gas tube and spark gap SPD are not permitted. Ensure each MOV’s operational status can be monitored via visual indicator, including N-G mode.

Provide SPD with one set of normally open (NO), normally closed (NC) Form C contacts for remote monitoring.

Ensure the SPD utilized for AC power does not dissipate any energy and does not provide any series impedance during standby operation. Return the unit to its non-shunting mode after the passage of any surge and do not allow the shunting of AC power.

8 - 18 10-24 Statewide

2.6.2. Parallel SPD for 120 V Equipment. Install an SPD inside of the cabinet on the power distribution to the equipment. Keep leads as short as possible with all conductor bends formed to the maximum possible radius. Connect the SPD ground lead directly to the ground bus. Use of wire nuts is prohibited. Install in conformance with manufacturers recommendations.

Provide UL Listed Type 1 or Type 2 SPD labeled to UL1449 Third Edition, posted at UL.com, under Certifications UL Category Code VZCA, and have a 20 kA I-nominal rating. Provide SPD rated as NEMA 4.

Do not exceed 700 V on the voltage protection rating (VPR) on any mode (L-N and N-G).

Do not exceed 150 V on the maximum continuous operating voltage (MCOV).

Equal or exceed 40 kA the SPD surge current rating per mode (L-N) and (N-G).

Equal or exceed 50 kA or the available short circuit current, whichever is higher for the SPD short circuit current rating (SCCR).

Provide SPD with directly connected metal oxide varistors (MOV) exceeding 32 mm in diameter with thermal safety disconnectors. Gas tube and spark gap SPD are not permitted. Ensure each MOV’s operational status can be monitored via visual indicator, including N-G mode.

Provide SPD with one set of normally open (NO), normally closed (NC) Form C contacts for remote monitoring.

2.6.3. Low-Voltage Power, Control, Data and Signal Systems SPD. Install a specialized SPD on all conductive circuits including, but not limited to, data communication cables, coaxial video cables, and low-voltage power cables. Ensure that these devices comply with the functional requirements shown in Table 2 for all available modes (i.e., power L-N, N-G; data and signal center pin-to-shield, L-L, L-G, and shield-G where appropriate).

These specialized SPD must have an operating voltage matching the characteristics of the circuit. Ensure that these specialized SPD are UL 497B or UL 497C Listed, as applicable.

Provide the SPD with three stages of surge suppression in a Pi (π) configuration. The first stage (primary side) consists of parallel-connected gas discharge tubes (GDTs). The second stage consists of a series connected resistor or inductor. The third stage (secondary side) consists of parallel-connected transorbs or silicone avalanche diodes (SADs).

Ground the SPD to the DIN rail and a wire terminal connection point. (Grounding solely through the DIN rail connection is not adequate and does not meet the performance or intent of this Specification.)

Install coaxial SPDs in a manner that prevents ground loops and resulting signal deterioration. This is usually caused where the cable has different references to ground at either end and connecting SPDs at both ends that have only pin to shield protection completes a ground loop circuit through the shield. SPDs having pin to shield protection, and separate shield to ground protection are acceptable to eliminate ground loops.

9 - 18 10-24 Statewide

Table 2 SPD Minimum Requirements

Circuit Description Maximum Continuous

Operating Voltage

(MCOV)

Frequency/ Bandwidth/ Data

Rate Surge Capacity

Maximum Let-Through Voltage

12 VDC 15-20 V N/A 5 kA per mode (8×20 µs) <150 Vpk

24 VAC 30-55 V N/A 5kA per mode (8×20 µs) <175 Vpk

48 VDC 60-85 V N/A 5 kA per mode (8×20 µs) <200 Vpk

Coaxial Composite Video

4-8 V Up to 1.5 GHz 10 kA per mode (8×20 µs) <100 Vpk

RS422/RS485 8-15 V Up to 10 Mbps 10 kA per mode (8×20 µs) <30 Vpk

T1 13-30 V Up to 10 Mbps 10 kA per mode (8×20 µs) <30 Vpk

Ethernet Data 7-12 V Up to 100 Mbps 3kA per mode (10×1000 µs) <30 Vpk

2.7. Environmental Design Requirements. Provide cabinets that meet the functional requirements of this Item during and after subjection to any combination of the following requirements:

ambient temperature range of -30 to 165°F;

temperature shock not to exceed 30°F per hour, during which the relative humidity does not exceed

95%;

relative humidity range not to exceed 95% over the temperature range of 40 to 110°F; and moisture condensation on all surfaces caused by temperature changes.

2.8. Vibration. Material used must show no degradation of mechanical structure, soldered components, plug in components or satisfactory operation in accordance with the manufacturer's equipment specifications after being subjected to the vibration test as described in the NEMA standard TS2, Section 2.2.8., “Vibration Test,” or the latest revision.

3. FABRICATION

3.1. Anchor Bolts. Fabricate anchor bolts, nuts, and washers in accordance with the details shown on the plans and Item 449, “Anchor Bolts.” Galvanize these items in accordance with Item 445, “Galvanizing.”

Provide two circular steel templates as shown on the plans conforming to ASTM A36 for each assembly.

Tack weld the lower anchorage nuts to the lower template in the shop. Perform this welding with an appropriate jig to ensure that the anchor bolt is perpendicular to the template. Shipping of the anchor bolt cage in its assembled condition is not required.

10 - 18 10-24 Statewide

3.2. ITS Poles. Fabricate ITS poles in accordance with the details shown on the plans, this Item, and Item 441, “Steel Structures.” Alternate designs are not acceptable unless approved by the Department.

Provide properly fitting components. Provide round, octagonal (8-sided), or dodecagonal (12-sided) pole shafts tapered to the heights shown on the plans.

Permanently mark, at a visible location when erected, ITS pole base plates with the design wind speed.

Locate the handholes, as shown on the plans, opposite of the direction of traffic flow.

Permanently mark, at a visible location when erected, ITS pole base plates with the fabrication plant’s insignia. Place the mark on the pole base plate adjacent to the handhole access compartment.

Provide circumferential welds only at the ends of the shaft. Provide no more than two longitudinal seam welds in shaft sections. Provide 100% penetration within 6 in. of circumferential base welds and 60% minimum penetration at other locations along the longitudinal seam welds, unless otherwise specified. Use a welding technique that minimizes acid entrapment during later galvanizing. Hot-dip galvanize all fabricated parts in accordance with Item 445, “Galvanizing.”

Perform at least 10% ultrasonic testing (UT) of longitudinal seam welds on the pole shafts. Use a Department-approved UT procedure to ensure 60% or 85% minimum penetration where specified. Perform testing at a minimum of three locations on each shaft section (at both ends and middle). The minimum length of each test area must be 10 in.