RFB # P27-07 North Street Storm Sewer Replacement - Addendum 1.pdf
PDF 243 KB Posted
- Attached to
- North Street Storm Sewer Replacement
- Solicitation number
- 323-P27-07
- Issued by
- Henderson County, Charlotte City, North Carolina
About this file
This is Addendum 1 to a Request for Bids issued by the Town of Chapel Hill, North Carolina for RFB #P27-07, North Street Storm Sewer Replacement. The project scope involves removing a variable-size and variable-shape stormwater culvert at and around 116 North Street and replacing it with 36-inch circular reinforced concrete pipes, along with associated sanitary sewer and waterline adjustments. A mandatory pre-bid meeting was held on August 26, 2026, and only companies that attended are eligible to submit bids. Sealed bids are due September 18, 2026 at 2:00 p.m. at Town Hall, Room 102, 405 Martin Luther King Jr. Blvd., Chapel Hill, North Carolina 27514. The anticipated contract execution date is October 23, 2026, with the Notice to Proceed date flexible and to be coordinated with the selected contractor. Project completion is required within 120 days after Notice to Proceed. Unit prices are requested for remove-and-replace work measured per cubic yard for unsatisfactory soil, trench rock excavation, and mass rock excavation.
The addendum addresses 15 questions submitted by prospective bidders regarding project logistics and requirements. Key clarifications include that the Town does not object to raising overhead electric lines but coordination with the utility provider is the contractor's responsibility; the contractor must account for utility relocations shown on drawings and potentially other unforeseen utility conflicts; active/positive shoring is anticipated due to proximity to existing structures; a temporary field office is not required; the contractor is responsible for installing underground electric conduit with Duke Energy routing the cable; and the Historic Town Hall site at 100 W Rosemary (approximately 90 feet by 18 feet) is available for material storage at the contractor's expense and responsibility. The Town identified specific dates with potential lane closure restrictions from October through February due to UNC events and community activities, and noted that UNC Men's basketball restrictions may apply pending schedule finalization. No Engineer's estimate has been prepared, and unforeseen conditions will be addressed through written Requests for Information and contract change orders.
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Text version
North Street Storm Sewer Replacement 1 Bid: P27-07 Town of Chapel Hill, North Carolina September 10, 2026
ADDENDUM 1
REQUEST FOR BIDS (RFB)
For
NORTH STREET STORM SEWER REPLACEMENT
BID: P27-07
SUBJECT: Addendum 1 – North Street Storm Sewer Replacement
DATE: September 10, 2026
This Addendum answers questions received related to the Notice of Request for Bids (RFB) for construction services associated with replacing a stormwater culvert at and around 116 North Street in Chapel Hill, NC.
Submissions are due to Town Hall – Room 102, 405 Martin Luther King Jr. Blvd., Chapel Hill, North Carolina 27514, by 2:00 PM on September 18, 2026.
Listed below are those questions received and our responses:
1. Question: Can the existing overhead electric lines running down North Street be raised? They currently do not provide enough clearance to work under per OSHA requirements.
Response: The Town does not take exception to having the overhead lines raised; however, this will need to be coordinated between the Contractor and the utility provider.
2. Question: Where is the next upstream SS manhole on the line in North Street? Can the town provide exact location or plan sheets for tie-in location?
Response: The plans show the extent of the sanitary sewer to be replaced. The upstream sanitary manhole is shown on sheet C0101. The center of the new offset doghouse manhole (SMH #2) in North Street is 144-ft downstream of the center of the eastern upstream OWASA manhole. The center of the new doghouse manhole (SMH #1) is shown on the plans as 15.8-ft downstream of the existing OWASA manhole in North Street immediately west of the work zone.
3. Question: The existing 6” AC water main will need to be shut down for storm drain construction & subsequent water line relocation. How long can this water main remain out of service?
Response: The water main may not be placed out of service for an extended amount of time, and the project is to be phased to minimize any service outages. All service outages must be coordinated with
North Street Storm Sewer Replacement 2
OWASA in advance of the outage occurring. The water main should be properly supported at all times during construction activities. Extreme caution is to be used when placing new stormwater pipes and structures around water main. If temperatures are anticipated to drop below 40 degrees, any exposed utility mains should be properly insulated to prevent freezing.
4. Question: My firm missed the pre-bid meeting on August 26, 2026. Is there any way for us to still be eligible to bid, whether that's a chance to walk the site separately, a make-up session, or anything else the Town would consider?
Response: The RFB lists the pre-bid meeting as mandatory, therefore only companies who attended the August 26, 2026, Pre-bid meeting will have their bids considered.
5. Question: Can we obtain a list of any events within the anticipated project duration window that would interfere with the performance of work?
Response: Dates with potential lane closure restrictions are as follows:
- October 23 – 25 (UNC Family Weekend)
- October 31 (UNC Football home game)
- November 7 (Downtown FestiFall Arts Market)
- November 14 (UNC Football home game)
- November 28 (UNC Football home game)
- December 5 (Community Holiday Parade)
- February 19-21 (All Together Now Arts Festival) Note that the UNC Men’s basketball schedule is not yet finalized, and there may be lane closure restrictions on the large games (i.e. Duke at UNC). Any additional dates not listed here will be communicated with the selected contractor in advance of work.
6. Question: What is the anticipated Notice to Proceed date? Is it flexible?
Response: The Request for Bids notes an anticipated contract execution date of October 23. Depending on the proposed cost of the contract work, Town Council approval will be needed once a contractor is selected, which can take 2-4 weeks to coordinate with the Clerk’s Office. The Notice to Proceed Date is flexible within reason and will be coordinated with the lowest responsive, responsible bidder once selected.
7. Question: What is the Engineer’s estimate for this project?
Response: An Engineer’s opinion of probable cost has not been prepared for this project.
8. Question: How will unforeseen conditions be handled?
Response: Should unforeseen conditions arise, the selected Contractor must notify the Town in writing via a Request for Information. Any changes to the Contractor’s scope of work as a result of these unforeseen conditions shall be handled by a contract change order.
9. Question: Are there currently any known laydown areas that the contractor will be able to use during the work?
North Street Storm Sewer Replacement 3
Response: There are several businesses in the area that have open lots near the project site; however, the Town cannot comment on the availability of this privately owned land. The Town’s Historic Town Hall site located at 100 W Rosemary is available for use by the Contractor if needed. Historic Town Hall has approximately 90-ft x 18-ft of lot area useable for material storage; however, the Contractor will be responsible for all materials handling and security.
10. Question: Is any active/positive shoring anticipated on this project?
Response: Yes, use of active/positive shoring is anticipated during construction. This is due to the proximity of the construction activities to existing buildings, retaining walls, and within the roadway.
11. Question: Are there any BABA or AIS provisions for this project?
Response: No.
12. Question: Article 39/J of the General Conditions instructs the Contractor to install a temporary field office if so directed by the engineer. Please clarify if a temporary field office will or will not be required for this project.
Response: A temporary field office is not required for this project. The contractor must have a valid mailing address/ office location to receive project mail.
13. Question: Who is responsible for the cost/relocation of the existing underground electric lines, poles, and overhead service?
Response: Contractor should account for relocation of utility services in bid.
14. Question: We plan to bid this project based on the information provided in the documents. This includes any existing utility relocations that are specifically shown to be performed on the drawings. As we are not privy to what other existing utilities may be in conflict with this design, we cannot assess or quantify what may be required to perform this work. We suggest that an allowance be carried by all bidders to cover the costs of any potential existing utility relocations that may be required.
Response: The suggestion is noted.
15. Question: Who is installing the underground electric lines?
Response: The expectation is the Contractor shall install underground conduit and for Duke Energy to route the electrical cable.
END OF ADDENDUM
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