SSSD Manhole Rehab

Sewer Manhole Rehabilitation
Addendum No. 1
Invitation for Bids
Sewer Manhole Rehabilitation
Spartanburg Sanitary Sewer District
Issued on Wednesday, September 23, 2026
ACKNOWLEDGE RECEIPT OF THIS ADDENDUM BY INCLUDING THE
DOCUMENT ALONG WITH YOUR WRITTEN RESPONSE. FAILURE TO DO
SO MAY SUBJECT PROPOSERS TO DISQUALIFICATION. THIS ADDENDUM
AND ANY ATTACHMENTS FORMS A PART OF THE REQUEST FOR
PROPOSAL DOCUMENT AND MODIFIES THEM AS FOLLOWS:
1. Is there a laydown yard for job trailers, equipment and materials that can be
used? Locating staging area will be the Contractor's responsibility.
2. Where can potable water be obtained for use in pressure washing of manholes?
Potable water can be purchased from SWS at inventory control, 345 South
Avenue, for $10 per load, regardless of load size. If using water from
Spartanburg Water hydrants, the contractor will be responsible for applying for
and obtaining a hydrant meter from Spartanburg Water System. The cost is
$750 of which $650 of that cost is refundable upon return of the hydrant meter
back to Spartanburg Water. The cost of the water used will be the responsibility
of the contractor.
3. Can flow through plugs be utilized instead of any bypass pumping to keep costs
down? Yes
4. Can Sherwin Williams Dura-Plate 6000 be an approved epoxy coating?
Yes, this is an approved epoxy.
Will Strong-Seal be acceptable for this project? Strong-seal is not an approved
coating.
5. Will vacuum testing be required , and if so how many vac tests need to be
included in pricing? No.
6. Are there any manholes that have an existing coating that needs to be
removed? No.
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Sewer Manhole Rehabilitation
7. Can the 90 day contract to completion date be extended?
No, per the bid specifications.
8. Are the 2 manhole cover replacements in grass areas or on pavement? Two in
grass and one in asphalt.
9. What is the engineer's estimate or budget cost? $400,000
10. Are the MWBE requirements a goal or is it mandatory? Not mandatory.
If the MWBE requirements apply to the bidder indicate on Exhibit B.
11. What is the substantial / final completion time for the project? The project is
expected to be completed within 90 days.
12. WE respectfully request that Refratta's 100% pure-fused calcium aluminate
coating be approved as an equal under that manhole rehabilitation
specifications. Refratta's specs are attached for your review. SSSD respectfully
declines this request.
13. I do not see any additional forms for MWBE Participation & Community
Benefits Program Participation. How should this be submitted? On the
company letterhead and submitted with the bid package. There is not a
separate form.
14. Will the surety standard form suffice for the bid bond? Yes.
15. Please confirm that 1 (one) original copy of the bid submittal will suffice, or if
there are any additional copies required. Yes, only one hard copy of the bid is
required.
16. Are there any additional city licenses or registration required? If any permits or
licenses are required, that is the responsibility of the Contractor.
17. The list the has Quadex who has been out of business for a couple years and
Thoroc Plug who is now manufactured under MasterSeal 590 and horo
WaterPlug . So are MasterSeal 590 and ThoroPlug acceptable? Yes it is
18. Can the Owner provide a complete manhole schedule identifying each manhole
ID, location, depth/vertical footage, diameter and anticipated rehabilitation
scope? Please see the attached list.
19. Can the Owner confirm whether all 65 manholes are anticipated to receive the
same rehabilitation system or whether the required rehabilitation varies by
structure based on condition? Will they all receive a cementitious and epoxy
coating? All manholes will receive the same rehabilitation based on the
requirements in the Specifications.
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Sewer Manhole Rehabilitation
20. If significant infiltration is encountered requiring chemical grout or other specialty
infiltration-control measures, will this be considered incidental to the Manhole
Rehab unit price or handled as additional work? Infiltration repair shall be
included in the unit price.
21. Can the Owner clarify the anticipated scope of the five "Repair Manhole Table"
locations and provide the approximate dimensions and existing conditions for
each? These are identified in the photos, all manholes are 4ft in diameter?
22. Can the Owner confirm whether bypass pumping/flow control will be required at
all manholes or only where necessary based on existing flows and rehabilitation
methods? Not required.
23. If bypass pumping is required, can the Owner provide available flow information
for the affected manholes, including average and peak flows and upstream pipe
sizes, to allow bidders to accurately size and price bypass operations? Not
required.
24. Can the Owner confirm the 2 manholes that need frame and cover installation?
Yes, Owner will provide frame and cover.
25. Can the Owner confirm whether coating of the bench and invert is required at
every rehabilitated manhole or only where specifically identified? Yes, all
benches and inverts are to be coated.
26. While reviewing the specifications, we did not see minimum thickness
requirements identified for the cementitious and epoxy lining systems. Can the
Owner please clarify the minimum required thickness for each system? No
specification for thickness.
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