Questions and Answers to Project Documents — Business Opportunities
PROJECT:  Parking Revenue Control System Construction Upgrades
NUMBER:  201950220-00

Current as of:  9/23/2019
 
Question Number  1:   Traffic Control - No plans are provided. Please define requirements for Entry and Exit lane Traffic Control (i.e.. Flagmen & Signage required). Would DEN consider establishing an Owner's Allowance for this scope of work should the requirements not be definable at this point in time?
    Answer:   It is the responsibility of the Contractor to develop and provide an MHT. The MHT must be in accordance with Technical Specification 15525 which is part of addendum 2. DEN will provide a revised phasing plan and equipment installer schedule which should be used as a guideline for developing your traffic control plan. All plans are to meet the requirement of CDOT and MUTCH. Contractor is required to provide enough information to allow roadway users reasonable and prudent information necessary to allow efficient and lawful usage of the roadways. Costs for this activity is to be included in your proposal.
Question Number  2:   It appears that the majority of the traffic equipment is owner furnished and installed. Please identify what equipment is not provided by DEN and the contractor is responsible for furnishing and installing. No specifications have been provided for equipment.
    Answer:   The parking equipment provided by the Owner is identified on the equipment matrix and the drawings developed by NextGen which are part of the IFB package. The construction documents identify the equipment being provide by the Owner as “By Others “or provided by “NextGen”. The contractor is not required to provide any type of Parking equipment. They are required to provide the structural supports for the equipment as specified on the drawings. The major items the contractor is required to provide, and install are the toll booths.
Question Number  3:   Please clarify how many locations the parking equipment installer can work at simultaneously and duration for each lane.
    Answer:   The parking equipment installer will work 3 lanes at one location at a time.
Question Number  4:   Phasing Plan - Site WW (Lanes 152, 153, 154 & 155) and Site UU (Lanes 156, 157, 158 &159) are not shown on the Phasing Plan. Please provide the Phase and Milestone these lanes are to be included.
    Answer:   As discussed in Tuesday’s pre-bid meeting, the phasing attached to the IFB is outdated and should not be used for bidding purposes. DEN will issue a new phasing plan as part of an addendum.
Question Number  5:   The milestones in certain cases may be difficult to achieve based on the phasing and sequencing constraints. Would DEN consider modifying the Bid Sheet to reflect contractor proposed milestone durations.
    Answer:   Yes, DEN would consider modifying the BID Sheet to reflect the contactor’s proposed milestone durations.
Question Number  6:   How will you – Denver Airport - verify that all DMS, Roadside Controllers, and other Electronic Devices Bid on this project have been tested and verified to be in compliance- including the appropriate labeling; and NOT in violation of the Law as specified in the FCC’s “ Title 47, CFR Part 15” regulations ?
    Answer:   Supply and installation of the VMS is not in the contractor’s scope of work.
Question Number  7:   Will Bidders be required to submit evidence of FCC Compliance with their Bid or prior to Award ?
    Answer:   Supply and installation of VMS is not in the contractor’s scope of work.
Question Number  8:   What actual documentation evidencing FCC Compliance for all DMS and other Electronic devices will you require to be provided, and when ?
    Answer:   Supply and installation of the VMS is not in the contractor’s scope of work.
Question Number  9:   Will alternatives to Daktronics VMS be considered/accepted?
    Answer:   No, DEN will not accept an alternative to the Daktronics VMS.
Question Number  10:   Please clarify who is to provide and install the structural supports for the VMS signage to be installed by NextGen (Item D of Architectural Key Notes). These supports are detailed in the Structural Details but are not called out as Item M “New Structural Element to provide support for New Overhead Equipment” in the Architectural Drawings. There are field welds shown as well as requirements to hot dip galvanize, etc. Will the sign manufacturer provide the steel backup members and NextGen install when installing the VMS?
    Answer:   All structural support steel is to be procured and installed by the GC. Procurement and installation of the backup frame as shown on the structural drawings is the responsibility of the GC. NextGen will only provide and install the sign. When attaching to an existing steel member, the sign backup members are welded to 3/8” plate. The 3/8” plate is to be field welded to the existing steel member. See response below with regards to welding galvanizing steel to existing members. All of this work is the responsibility of the GC.
Question Number  11:   Please clarify who is to provide and install the structural supports for the AVI Units. These are detailed in the Structural Details but are not called out as Item M “New Structural Element to provide support for New Overhead Equipment” in the Architectural Drawings. There are field welds shown as well as requirements to field verify existing steel member size and coordination of plate geometry. The Detail shows that the AVI unit is by Others and that Attachment to Steel Tube by Others, but it is unclear whether the Steel Tube mentioned is the Existing Steel Member or the new Hanger/Extending Arm.
    Answer:   The GC is responsible for procuring and installing the AVI supports as shown on the structural steel drawings. The steel tube that supports the AVI is provided and installed by the GC. When attaching to an existing member, the steel tube is bolted to steel plates. The steel plates are field welded to the existing steel member as shown on the drawings. Galvanized steel that is to be field welded to an existing steel member, the galvanized is to be grinded off and surface prepared to accept the weld. Once the weld has been accepted, a zinc paint is to be applied over the weld and all of the grinded areas. No welded areas are to remain exposed. All of this work is the responsibility of the GC.
Question Number  12:   Civil Site Drawing, Various Sheet numbers – Site Striping and Marking – The bid form has lump sum pricing for each package but the note for Site Striping and Marking states “Lengths and Areas of Proposed Striping and Marking to be determined by DEN Project Management during site walk through.” Can the bidders provide unit pricing per LF or SF for removal of existing pavement striping and painting of new pavement striping to be used when evaluating the work during the site walk through?
    Answer:   Yes, the bidders can provide a unit price for LF or SF for removing pavement striping and painting new striping. The note with regards to Striping and Marking, as shown on the drawings, does state with regards to the islands, the curbs are to be painted yellow, 6” horizontal and vertical. The costs for that painting is to be included in your proposal.
Question Number  13:   The Daktronics signs are to be supplied and installed by NextGen. Will NextGen provide and install the necessary conduits and wiring as well?
    Answer:   No. The GC is responsible for installing all conduits. The GC will also be responsible for pulling the power wiring and terminating at the sign and the panel. The Communication cable will be installed and terminated by DEN IT.
Question Number  14:   Will the NextGen provided and installed items be complete systems or will our electrical contractor need to tie into the signs after NextGen installs them?
    Answer:   The GC’s electrical contractor will be responsible for terminating the power cable to the sign after NextGen has installed it. DEN IT will be responsible for terminating the communication cable to the sign.
Question Number  15:   IB-31 Invoicing – 3rd Paragraph – The first sentence states “Effective January 2018, Textura moved to a flat fee schedule as attached.” That schedule has not been included. Please provide so that bidders may complete the Bid Form.
    Answer:   Please see Miscellaneous 6 under Additional Documents on the flydenver.com website.