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Question
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Date:
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4/18/2018 4:33:45 PM
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We believe that the Unit of Item ID 40380 should be LS instead LF. Please confirm
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Answer
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Date:
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5/14/2018 12:52:35 PM
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This item has been changed to Item 41983 (Lump Sum) per addendum
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Question
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Date:
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4/17/2018 2:01:13 PM
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Can stainless steel end plate be designed as bolted? If not the as designed shop weld will require end bay of stringers and end plate to be shipped assembled. This will be difficult to ship and handle at the site.
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Answer
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Date:
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4/25/2018 1:21:34 PM
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Yes, stainless steel end plate can be designed as bolted. However, Contractor shall provide tight fit connection so water shall not intrude between stainless steel plate and stringer’s end.
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Question
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Date:
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3/29/2018 7:42:45 PM
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If stainless steel end plate is shop welded to end stringers then end bay of stringers and end plate will need to be shipped and installed as one piece. This section will be difficult to handle and ship. Would bolting design of end plate to end bay stringers be acceptable? All other connections, field and shop on the truss will be bolted.
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Answer
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Date:
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5/14/2018 9:34:04 AM
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A bolted connection of the stainless steel end plate shall be allowed as long as neoprene washers are used when stainless steel components are connected to non-stainless steel structural steel. The bolted stainless steel plate shall be required to provide the same protection to the end of the stringer as the welded steel plate. The Contractor shall provide the Engineer with detailed drawings of the bolted stainless steel connection plate.
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Question
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Date:
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3/27/2018 8:57:16 AM
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Plan sheet 296-38 calls for Stainless steel end plate to be shop welded to the end bay of galvanized stringers.
Our galvanizer has questioned the reaction between the two steel items when welded together. Is there concern?
The end stringers also need to be installed in truss before the stainless end plate is attached. Can the end plate be field welded?
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Answer
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Date:
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3/28/2018 11:22:16 AM
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The stainless steel plate can be welded to the galvanized steel as long as the coating in the weld area is removed before welding. After welding in complete, the galvanized coating needs to be restored to the carbon steel for corrosion protection. If this re-coating / painting is allowed to lap over onto the weld bead then the joint should not be at risk to bimetallic corrosion in any environment so long as the coating is sound. Ideally the weld bead should be covered so that only the 'parent' stainless steel is ultimately exposed. This ensures that galvanic corrosion cells cannot be set up across the joint, where there is a composition 'gradient'.
Field welding of the end plate will not be allowed. Stainless Steel plate width is 3” on each side plus flange width of stringers.
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Question
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Date:
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3/29/2018 7:42:45 PM
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If stainless steel end plate is shop welded to end stringers then end bay of stringers and end plate will need to be shipped and installed as one piece. This section will be difficult to handle and ship. Would bolting design of end plate to end bay stringers be acceptable? All other connections, field and shop on the truss will be bolted.
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Answer
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Date:
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5/14/2018 9:34:04 AM
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A bolted connection of the stainless steel end plate shall be allowed as long as neoprene washers are used when stainless steel components are connected to non-stainless steel structural steel. The bolted stainless steel plate shall be required to provide the same protection to the end of the stringer as the welded steel plate. The Contractor shall provide the Engineer with detailed drawings of the bolted stainless steel connection plate.
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Question
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Date:
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4/16/2018 2:39:12 PM
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On sheet 6 of the bridge plans, the typical elevation at the abutments state to see the roadway plans for guardrail. The roadway plans do not show any guardrail for either bridge and there is no pay item for guardrail.
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Answer
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Date:
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5/14/2018 12:53:31 PM
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Guardrail has been added to the plans under Revision #2. Guardrail GR-MGS1 Item #13280. 32 LF was added to each project, so 64 LF total.
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Question
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Date:
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4/13/2018 9:15:02 AM
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The typical detail on Bridge Plan sheet 3 for both bridges show VDOT No 2 Aggregate between the new sheet pile wall and the existing timber bulkhead. Bridge Plan sheet 1 shows removal of the timber bulkhead.
We are assuming that the aggregate fill is required between the new abutment and sheet pile wall as shown in the Substructure Layout on Bridge Plan Sheet 3. Please confirm
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Answer
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Date:
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4/18/2018 10:36:15 AM
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The existing timber bulkhead is to be removed until level with the new steel sheet piling. The area between the existing bulkhead and new sheet piling shall be excavated 6” down from the top of the bulkhead/sheet piling elevation and a layer of geotextile fabric placed and then the area filled with No. 2 stone. The voids in the steel sheet pile wall at the abutment shall be filled with No. 2 stone as well.
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Question
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Date:
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4/5/2018 11:41:38 AM
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Can the field office be changed to a type III?
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Answer
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Date:
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5/3/2018 1:07:04 PM
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No, the field office will remain Type 1
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Question
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Date:
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4/3/2018 11:23:09 AM
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On sheet 160 of the proposal book (Location # 1-13 Existing Span Structure) they are taking a sign off and putting a new sign on an existing structure. It appears to me that the new sign is bigger than the one they are taking off. In the Notes on sheet 160 of the proposal book it states “The Structure Shall Be Designed”. Is there any design work required for this structure? If Designing of Existing Structure is needed, How are we to prove an Old Design with the New VDOT Standards and Specs?
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Answer
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Date:
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5/23/2018 9:23:42 AM
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This question does not pertain to this project.
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Question
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Date:
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4/3/2018 11:21:32 AM
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Location No. 5-4 (Type VIA-W) W14x26 Post, Location No. 5-6 (Type VIA-S) W12x16 Post, Location No. 5-7 (Type VIA-C) W10x12Post, & Location No. 5-8 (Type VIA-T) W12x19 Post Sizes doesn’t match the Bid Item Sizes (Item # 0130 W12x16) (Item # 0140 W14x22) (Item # 0150 W16x26)? Which should we be quoting?
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Answer
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Date:
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5/23/2018 9:24:05 AM
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This question does not pertain to this project.
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Question
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Date:
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4/2/2018 9:05:14 AM
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Both bridges appear to have power lines in the right of way and will interfere with any lifts made for piling, setting the abutments and setting the bridges. Can the power lines be taken out of service for these activities?
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Answer
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Date:
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4/4/2018 1:44:28 PM
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The overhead power line at B-622 on School Street (UPC# 98821) have been relocated into an utility easement out of the right of way. The overhead power lines at B-623 on Wallace Road (UPC# 98822) have been removed.
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Question
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Date:
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4/18/2018 4:15:27 PM
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There is an existing communication line crossing the creek on one side of the Bridge B622. Is it going to be relocated prior construction. Please confirm.
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Answer
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Date:
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5/14/2018 12:54:18 PM
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The existing telephone line located on the plan (1306-001-609, UPC# 98821) right of construction base line has been relocated. The new phone is located with the proposed utility easement shown on the plans.
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Question
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Date:
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4/2/2018 9:02:35 AM
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Will a temporary trestle be allowed for access in the right of way?
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Answer
1 previous answer(s)
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Date:
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5/14/2018 12:55:29 PM
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Yes, the environmental permits have been revised to allow for a temporary work trestle. Please see updated permit sketches in the addendum.
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Question
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Date:
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4/18/2018 4:22:34 PM
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Project 1304-001-60 - Sheet No.3 shows an existing 4.5’ wood fence inside of the proposed Right of Way and Temporary Construction Easement. Is it going to be relocated prior construction? Please confirm.
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Answer
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Date:
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5/3/2018 1:10:18 PM
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The property owner has indicated that the fence will be removed prior to construction.
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Question
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Date:
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4/11/2018 3:13:08 PM
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Can a trestle be placed in the footprint of the existing bridge?
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Answer
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Date:
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5/14/2018 12:55:59 PM
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The environmental permits have been revised to allow for a temporary work trestle. Please see updated permit sketches in the addendum.
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Question
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Date:
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4/11/2018 11:18:32 AM
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We do not see any way to submit a reasonable bid on this project without the construction and use of temporary trestles. Therefore, we will probably not participate in this one.
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Answer
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Date:
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5/14/2018 12:56:26 PM
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The environmental permits have been revised to allow for a temporary work trestle. Please see updated permit sketches in the addendum.
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Question
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Date:
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3/29/2018 1:44:30 PM
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The sheet pile cap detail on sheet 3 of the bridge plans show a filler plate to make up the difference in width between the channel and the sheet pile wall. A channel section has tapered flanges so is a tapered filler plate required?
the detail shows the filler plate welded to the sheets. Does the fill plate get welded to the channel?
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Answer
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Date:
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4/16/2018 2:11:35 PM
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Yes and it will be welded to channel also.
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