| 249 | 1 | CAD Files for Takeoff | 06/26/2024 11:11 AM | Granite Construction Company | Response Published |
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| Question: Can you please provide please provide all line work, existing and design, in digital format (.XML, .DGN, .DWG) for takeoff purposes? If possible, please provide the files elevated in 3D coordinates, all AEC objects exploded/removed, saved in .DWG 2018 or earlier, and bind all external references. |
| Answer: CAD files have been uploaded to E-Bidding Portal. Please contact NDOT Contract Services at 775-888-7070 or via email at ndotcontractservices@dot.nv.gov for additional information. |
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| 250 | 2 | Dynamic Message Sign | 07/02/2024 11:43 AM | Sunrise SESA Technologies, Inc. | Response Published |
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| Question: Can your confirm the specific version of the Type 2 DMS on the project. Based on the standards a Type 2A is a 70mm amber sign, and a type 2C is a full color. |
| Answer: All DMS need to be color. This will be corrected in an upcoming pre-bid addendum. |
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| 251 | 3 | Bid Item 6180540 GALVANIZED GUARDRAIL | 07/08/2024 12:54 PM | Nevada Barricade & Sign Company, Inc. | Response Published |
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| Question: Due to the slopes in conjunction with the back of the guardrail posts, all guardrail posts on this project should be a minimum of 8' steel posts per NDOT Standard Plan sheet RB-1 note 3, which states, “When the distance between the back of guardrail post and hinge point is less than 2 feet, the post shall be lengthened to 8 feet minimum". However, there are several instances where posts greater than 8' will be required due to the current slope conditions. Will NDOT require the contractor to rebuild the slopes so that 8' Guardrail posts can be installed uniformly throughout the project? If not, there are several cases where 10’ & 11' posts may be required due to the slope angle. What will NDOT requirements be for determining the additional post lengths greater than 8'? |
| Answer: NDOT intends to utilize eight-foot posts on barrier rail for slopes where the distance from the back of the guardrail post and the hinge point is less than two feet. Longer posts may be used at the discretion of the project’s resident engineer to replace the existing rail in-kind. We expect the majority of guardrail posts to measure eight feet in length. NDOT does not intend to rebuild the slopes behind guardrail with this project. |
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| 252 | 4 | Working Days | 07/11/2024 01:07 PM | Q&D Construction | Response Published |
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| Question: After a detailed analysis of the project scope, limitations of operations, and quantity of work to be performed, the 180 working days allocated for the project is insufficient. Will NDOT consider adding additional working days to the contract time? |
| Answer: The working days have been determined to be adequate for the scope of work in the Tahoe Basin and will not be adjusted. Refer to the 4th paragraph under Section 108.02 in the Special Provisions. Please refer to Addendum 1, published on 7/31/2024, as special provisions in section 108.04 of the limitations of operations have been modified allowing multiple work zones and changes to full-width common point paving requirements. |
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| 253 | 5 | 6130860 - Type 6 Modified Curb and Gutter | 07/15/2024 11:54 AM | Granite Construction Company | Response Published |
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| Question: Per Detail RB-7 in the Standard plans, Note 1, mountable curb should not be used under guardrail. In areas calling for both Type 6 (Modified) Curb and Gutter to be installed and the removal and replacement of guardrail can Type 5 Curb and Gutter be installed in place of Type 6 (Modified)? Type 5 looks to match the overall dimensions of the Type 6 (Modified). |
| Answer: Type 5 modified curb and gutter should be used under guardrail rather than the mountable type 6 modified. Type 6 modified will be used when not under guardrail. This will be corrected in a pre-bid addendum. |
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| 254 | 6 | Bid Item 6341030 THERMOPLASTIC PAVEMENT MARKING (24- INCH SOLID WHITE) 5,334.500 LF | 07/16/2024 03:56 PM | Nevada Barricade & Sign Company, Inc | Response Published |
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| Question: it appears the bid item unit of measure for bid item 6341030 should be 5,334.5 SF, not LF, as indicated in the estimate of quantities. Can NDOT please double-check the quantities for this line item? |
| Answer: We have checked the quantities for 24 Inch Solid White Thermoplastic (6341030). We will revise the estimate to show 2678 LF when we send out the addendum. The bid item will remain as 6341030. We will also adjust the quantity for 6341060, thermoplastic pavement markings (varies) from 2371.2 to 2202 SQFT. |
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| 255 | 7 | Bid Item 2021288 GRINDING FOR PAVEMENT MARKINGS 6,600.600 SF | 07/16/2024 04:06 PM | Nevada Barricade & Sign Company, Inc | Response Published |
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| Question: 1. Can NDOT please double-check the quantities of this item? 2. is NDOT going to allow for boxes/rectangles for all legends & Symbols or does the recess need to match the layout of the legends & symbols? |
| Answer: To minimize the extent of ice sheets in the voids, the grinding layout shall adhere to the layout of the symbols. Following a review of material quantities, NDOT will update the grinding pavement markings quantity (Item 2021288) to 2202 square feet in the forthcoming addendum. |
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| 256 | 8 | Bid Item 6270300 VANDALISM DETERRENT 3-EACH | 07/16/2024 06:54 PM | Nevada Barricade & Sign Company, Inc | Response Published |
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| Question: Does NDOT have details for these and where they are being placed? There are no overhead sign structures on this project, and this pay item is typically reserved for overhead sign structures. |
| Answer: Please refer to Detail Number OS-21 on page 368 of the NDOT Standard Plans for Road and Bridge Construction for the detail. See contract sheet T03, Plan Note #15 to indicate the location where the bid item is used on this project. This item is intended to deter pedestrians from climbing the poles; vandalism is not a concern at these locations. Sharp edges shall be dulled to prevent undue injury. |
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| 257 | 9 | Roadway Excavation | 07/18/2024 04:49 PM | Granite Construction Company | Response Published |
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| Question: On sheet 3K there is one line for Barrier Rail under Roadway Excavation for "L2" 128+53.80 to 157+44.72. This run of Barrier Rail seems to have the same properties and existing conditions to the rest of the 'Remove Existing Guardrail Lt. Construct Concrete Barrier Rail (Modified)' extending down to Sta. "L2" 252+09.36. Are the Road Ex quantities for the remaining runs of Concrete Barrier Rail missing from sheet 3K? |
| Answer: The removals for new barrier rail are covered by bid item 202 0935 – REMOVAL OF COMPOSITE SURFACE. The note on sheet 3K is placed in error. NDOT will remove the item in the upcoming addendum and adjust the quantity for Roadway Excavation to be 989 CUYD. |
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| 258 | 10 | ITS Trench Asphalt Patch | 07/23/2024 04:27 PM | Granite Construction Company | Response Published |
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| Question: Referring to plan sheet 3I, it appears NDOT used an eight-inch-wide trench to quantify the amount of asphalt needed for the permanent ITS Trenching patch. Due to the means and methods needed to get compaction on an eight-inch-deep asphalt patch, a wider trench in the asphalt will be required. Will NDOT pay for the required asphalt needed to properly patch the ITS Trench above the quantities listed on plan sheet 3I? |
| Answer: NDOT will adjust the trenching quantities for dense grade to reflect a 48-inch trench width. Total Plantmix Dense Grade Type 2 (Wet) Quantity will be 72598 tons. Changes will be reflected in the forthcoming addendum. |
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| 259 | 11 | Traffic Signal equipment specifications | 07/31/2024 09:52 AM | Sierra Transportation Technologies | Response Published |
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| Question: Please provide specifications for the traffic signal controller, controller cabinet, video image detection camera, Ethernet switch, and any other agency specifications for the traffic signal equipment on this project. The local agency has requested we go thru this RFI process for the specifications. |
| Answer: This will be addressed in an upcoming supplemental. |
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| 1 | 12 | Bid Item Clarification and Spec Clarification | 08/02/2024 01:04 PM | Summit Line Construction, Inc | Response Published |
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| Question: ITS Construction Notes 39 Says DMS BBS is under bid item 623 2890 which is actually the bid item for the DMS sign itself. In the structure list it is called out however for bid item 623 1628 Which is Battery Backup System. According to the Specs the same BBS is going to be used for DMS, Signals and communications. That doesn't seem correct for the NDOT systems and Douglas County (Carson City) to have same equipment for different systems and loads. Is NDOT going to issue an addendum to clarify or break out the BBS bid items and/or provide the Douglas County specs for this project. |
| Answer: The Bid item called out in both construction notes #38 and #39 should be 623 1628 (Battery Backup System). Information on the signal system BBS will be provided in an upcoming supplemental. |
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| 2 | 13 | Working Days | 08/02/2024 01:16 PM | Road and Highway Builders | Response Published |
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| Question: As already brought up in a previous RFI, 180 working days is no adequate to complete this project. The ITS work alone will require the entire contract time. Please share NDOT's schedule analysis showing that the working days allocated are sufficient. |
| Answer: The Department utilizes historical production rates, internal guidelines and procedures to establish contract durations. It is the bidder's responsibility to perform the work within the contract timeline stated in Subsection 108.02 of the Special Provisions and in accordance with all other contract requirements. The Department will not be providing a schedule as requested. The Department expects this to be a 2 season project and realizes additional resources will be required to meet that obligation. |
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| 3 | 14 | Bid Item 627 0300 Vandalism Deterrent | 08/06/2024 08:39 AM | Summit Line Construction, Inc | Response Published |
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| Question: This item isn't typical for signal poles. NDOT needs to provide a detail for signal pole application. Detail on OS21 is for a sign structure or bridge structure, not a signal pole with signal display. Detail on OS21 calls out for sharp edges everywhere so this application is not anything like the detail also pole C is a " Special Pole " what are the dimensions for those? Trying to get accurate pricing on a NDOT custom item without an accurate detail isn't practical. |
| Answer: Install the vandalism deterrent between the pole mounted signal head and signal pole mast arm. If there is not a pole mounted signal head, install the vandalism deterrent at 24 -inches below mast arm. The pole diameter at the point the vandalism deterrent will be installed will need to be determined prior to the vandalism deterrent diameter being finalized. |
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| 4 | 15 | Bid Date | 08/06/2024 09:39 AM | Sierra Transportation Technologies | Response Published |
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| Question: Will the bid date be changed in the upcoming supplemental? We will need time to get the upcoming supplement processed and time to prepare an adequate quote once the information is received. |
| Answer: The Department will be issuing an addendum to delay the bid opening for one week. |
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