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ATTACHMENT 1 – Specification #C67-2001.22 Request for Proposal (RFP) No. 240000002666 Mobile Barrier Wall Base Unit
All items specified and furnished by the Contractor shall be new, shall be of the latest model in current production, and shall include all standard features normally offered with these models.
Referenced make/model is Mobile Barriers MBT-1. Bidder may offer alternates or exceptions to the referenced make/model. Product literature for the make/model offered must be provided with bid response.
Bidder’s Response: Indicate offered Mobile Barrier Wall Base Unit:
Make:
Model:
RFP 240000002666, Attachment 1 2 Bidder must respond to each section with YES or NO (or enter additional information as requested). If NO is indicated, provide explanation and available option.
Bidder’s Response
| 1.1 |
| Unit number 67-2003 shall be welded to the unit in 2 inch high numbers or welded or stamped to a plate and bolted to the unit |
| 1.2 |
| All wires passing through holes in metal or non-metal wearing surfaces, which could cause wear of the insulation, shall be adequately protected by rubber or plastic grommets, and/or non-metal conduit. Ends of all wires shall be adequately anchored to prevent loosening. All wiring shall be properly secured to the unit by proper wiring hangers at 18" maximum intervals |
| 1.3 |
| All electrical connections shall be soldered and enclosed in heat shrink or in watertight junction blocks. Molded electrical connectors shall be used where individual wires would otherwise be exposed to the elements |
| 1.4 |
| Scotch locks and wire nuts are not acceptable |
| 1.5 |
| All wiring for all lights shall be routed in a protective jacketed cable or conduit |
| 1.6 |
| Lighting system shall include brake, tail, running lights, ICC bar, and turn signals that are LED type, that meet FMVSS 108 standards |
| 1.7 |
| All air and hydraulic lines passing through holes in metal or non-metal wearing surfaces, which could cause wear of the lines, shall be adequately protected by rubber or plastic grommets, and/or non-metal conduit. Ends of all air and hydraulic lines shall be adequately anchored to prevent loosening. All air and hydraulic lines shall be secured to the unit by proper hangers at 18" maximum intervals |
| 1.8 |
| Unit shall be equipped with hydraulic lines which can be attached to the semi tractor hydraulic system to be able to power outrigger or other mounted hydraulic operated units |
| 1.9 |
| Unit shall be equipped with air lines which can be attached to the semi tractor air system |
| 1.10 |
| The complete paint film, to include primer and finish coat, shall have a minimum thickness of 2.5 mils |
| 1.11 |
| Unit shall be painted a high visibility safety yellow |
| 1.12 |
| Unit shall be supplied with two (2) bi-directional platforms and miscellaneous hardware |
| 1.13 |
| Unit shall be able to be towed using a standard semi tractor without the need of special modifications |
| 1.14 |
| Unit shall be capable of being towed in either direction for left or right lane closures |
| 1.15 |
| Unit shall be of modular design. Any one or more of the 2 platforms and wall sections, and caboose may be replaced or repaired without replacing the entire trailer |
| 1.16 |
| Design must be independently tested and “Accepted” by FHWA under both NCHRP 350 and the new MASH update, for use at both TL-2 & TL-3 levels |
| 2.1 |
| Shall have one (1) 20’ platform at each end |
| 2.2 |
| Shall connect to one or more wall sections for extended lengths and normal operation |
| 2.3 |
| Shall have internal lockable storage space for tools, equipment & optional generator |
| 2.4 |
| Generator compartment shall include fresh air ducting and separate exhaust ducting away from work area |
| 2.5 |
| Shall include LED 2” round white lights in each lockable storage and generator compartments in the platforms |
| 2.6 |
| Shall contain removable ballast boxes which can be secured in recessed receptacles |
| 2.7 |
| Trailer plug connectors shall be wired per MDOT supplied Trailer Wiring Diagram, trailer connector shall be 7-way round pin Berg type , wired for turn signals independent of stop, compatible with trailers that have amber or side turn lamps |
| 2.8 |
| Shall connect to one or more wall sections for extended lengths and normal operation |
| 2.9 |
| Shall be wired for quick detachable trailer lighting |
| 2.10 |
| Shall be plumbed with quick detachable air lines |
| 2.11 |
| Shall be plumbed with quick detachable hydraulic lines |
| 2.12 |
| Shall be wired for quick detachable 120/240V power |
| 2.13 |
| Platforms shall be equipped with adjustable rollers designed to hold the platforms up and be adjustable for removing or installing wall sections to the platforms |
| 2.14 |
| Shall include LED Beacons at both rear corners of the platforms that provide 360-degree visibility, which are to be an amber/green unit with flash pattern set to quad fast flash amber and single slow flash green pattern |
| 3.1 |
| Unit shall be of modular design and interchangeable |
| 3.2 |
| Trailer shall be equipped with one (1) 20’ wall section |
| 3.3 |
| Trailer shall be equipped with one (1) 10’ wall section which shall be supplied with a hydraulicly operated outrigger |
| 3.4 |
| Shall be wired for quick detachable trailer lighting |
| 3.5 |
| Shall be plumbed with quick detachable air lines |
| 3.6 |
| Shall be plumbed with quick detachable hydraulic lines |
| 3.7 |
| Shall be wired for quick detachable 120/240V power |
| 3.8 |
| Wall sections shall be equipped with lockable support stands designed to hold the wall sections in a vertical position for removing or installing wall sections to the platforms |
| 4.1 |
| Shall have an integral standard 2” hitch receptacle and be movable from one end of the trailer to the other so that the trailer may be towed from either end |
| 4.2 |
| Shall have dual rear axles attached to Caboose equipped with ABS air brakes, and air suspension |
| 4.3 |
| Caboose air lines shall be equipped with 1/4 turn shut off valves which will allow the air brakes to be released for movement of the caboose when changing the direction of the unit |
| 4.4 |
| Shall be wired for quick detachable trailer lighting |
| 4.5 |
| Shall be plumbed with quick detachable air lines |
| 4.6 |
| Shall have protective shield for rear axles |
| 4.7 |
| Shall have TMA plate to accept TL-2 and TL-3 TMA |
| 4.8 |
| Shall have integral connections and power for TMA |
| 4.9 |
| Shall have battery packs embedded with the capability of being charged by solar panels, generator and 120 V power supply |
| 4.10 |
| GVWR: 33,556 KG (85,000 LBS) |
| 4.11 |
| GAWR-FR: 11,340 KG (25,000 LBS) |
| 4.12 |
| Tire/Rim-FR: 295/75R22.5 (G) /8.25x22.5 |
| 4.13 |
| GAWR-R: 11,340 KG (25,000 LBS) |
| 4.14 |
| Tire/Rim-R: 295/75R22.5 (G) /8.25x22.5 |
| 4.15 |
| Caboose lighting shall be FMVSS 108 approved tail, stop and turn LED type, wired for turn signals independent of stop lights |
| 5.1 |
| Trailer shall have (4) fixed axles, air suspension and super singles |
| 5.2 |
| GVWR: 33,556 KG (85,000 LBS) capacity |
| 5.3 |
| Tire/Aluminum Rims-FR: 425/65R22.5 (L) /12.25x22.5 |
| 6.0 |
| Generator Carrier and Wiring: |
| 6.1 |
| Unit shall be equipped with a slide out draw to house an optional 9.5 KW portable generator |
| 6.2 |
| Unit shall be equipped with a weather tight circuit braker box with circuit brakers |
| 6.3 |
| All outlets on platforms and wall sections shall be equipped with weather proof boxes with GFCI outlets |
| 6.4 |
| All wiring for the 120/240 volt system shall be routed in a protective jacketed cable or conduit |
| 6.5 |
| Shall be wired to charge battery pack |
| 7.1 |
| Shall be equipped with work lights for night time operations |
| 7.2 |
| Shall be capable of lighting entire work area |
| 7.3 |
| Shall be set as to not blind traffic or interfere with oncoming traffic |
| 7.4 |
| Shall be capable of 32,000 lumens per light head each w/ low draw & an est. bulb life of 2000 hrs. |
| 7.5 |
| Shall utilize DEUTCH watertight and sealed connectors to connect all light heads to cable harness for weather resistance and replacement ease. |
| 7.6 |
| Shall function with either battery pack, portable generator or optional on-board generator |
| 7.7 |
| Shall include light heads and extendable poles capable of being easily handled and stored in platform |
| 7.8 |
| Shall include integral quick detach brackets in wall sections and pockets for temp platform brackets |
| 8.0 |
| Hand Rails and Screen: |
| 8.1 |
| Unit shall be equipped with removal hand rails and screens which will go across all wall sections and platforms |
| 9.1 |
| Unit shall be equipped with an optional locking multi-drawer tool box |
| 10.0 |
| Truck Mounted Attenuator: |
| 10.1 |
| Unit shall have a quick disconnect (with two (2) pin release) system for the installation and removal of a mobile attenuator unit |
| 10.2 |
| Attenuator shall have a standard trailer lighting system compliant with FMVSS 108 standards, wired for turn signals independent of stop lights |
| 10.3 |
| Lighting system shall include brake, tail, ICC bar, and turn signals that are LED type |
| 10.4 |
| Wiring for the rear lights shall be routed and secured in the system frame |
| 10.5 |
| Light connector shall be round 7 pin Berg type wired to MDOT specifications |
| 10.6 |
| Lights shall be visible whether the system is in travel position or operating position |
| 10.7 |
| Four (4) hand crank jacks with swivel casters shall be attached to the system to allow removal of the unit from the truck for storage |
| 10.8 |
| Rear strike facing surface of the frame assembly shall display a black on yellow inverted "V" chevron pattern with a 4" wide color bands when in the horizontal position |
| 10.9 |
| All welding shall be done by, or under the direction of a certified welder |
| 10.10 |
| Metal work shall be made in America |
| 10.11 |
| All exposed metal of the attenuator shall be primed and painted black, unless it is galvanized |
| 10.12 |
| Hydraulic system shall consist of a pump with a 12 or 24 volt DC motor, cylinders, hoses, switches, wiring and necessary subcomponents to tilt the frame assembly to a 90 degree position from horizontal |
| 10.13 |
| Hydraulic system shall hydraulically lock to secure the frame assembly in the 90 degree position |
| 10.14 |
| Hydraulic system shall function with either battery pack, portable generator or optional on-board generator |
| 10.15 |
| Complete hydraulic system, including the pump and hoses, shall be factory assembled and mounted to the attenuator |
| 10.16 |
| A manual mechanical lock mechanism shall also be provided |
| 10.17 |
| The attenuator system shall be capable of tilting 5 degrees from horizontal when the back end of the attenuator contacts a rigid surface such, as a driveway |
| 10.18 |
| Complete hydraulic system, including the pump and hoses, shall be factory assembled and mounted to the attenuator |
| 10.19 |
| Attenuator system steel support frame and strike plate shall be easily refurbishable and reusable after a typical design impact |
| 10.20 |
| Cartridges shall be a lightweight aluminum type |
| 11.1 |
| Unit shall have a frame extension which will allow the mounting of a 4 foot x 8 foot arrow board |
| 11.2 |
| Sign board shall be aluminum construction, welded frame 48 inches high x 96 inches wide with flat black finish. |
| 11.3 |
| Arrow board shall be a manual tilt design with a worm gear and crank assembly to raise and lower the board |
| 11.4 |
| 15 replaceable lamps shall be Par 46 LED arrow lamps |
| 11.5 |
| Controller shall be solid state design, capable of simultaneous or sequential arrow with caution modes |
| 11.6 |
| Controller shall have LED display illustrating exact message mode arrow board will display |
| 11.7 |
| Controller shall be fully enclosed, sealed, hinged lid, lockable with padlock and mounted on the curb side of trailer |
| 11.8 |
| All connections shall be quick connect weatherproof design |
| 11.9 |
| Operating height of sign shall be approximately 146 inches |
| 11.10 |
| Travel height shall be approximately 88 inches |
| 11.11 |
| Power for the arrow shall be provided from the on board battery, solar panel, or generator |
| 11.12 |
| Arrow board shall be equipped with a 55 watt solar panel equipped with a 4 amp regulator, wired to connect to a platform battery pack |
END OF SPECIFICATIONS