RIA Laurel Street Stormwater Upgrades - Addendum 1

Agency:	City of Conway
State:	South Carolina
Type of Government:	State & Local
Posted Date:	Mar 24, 2026
Due Date:	Mar 26, 2026
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

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AECOM Technical Services, Inc.

1831 W Evans Street

Suite 200

Florence, SC 29501

Phone: (843) 254-4400

Sent via Duncan Parnell

March 23, 2026

RE: Laurel Street Storm Water Upgrades

RIA Grant No.: R-25-1391

AECOM Project No. 60751558

ADDENDUM NO. 1 – March 23, 2026

TO: ALL HOLDERS OF RECORD OF BID DOCUMENTS

Acknowledge receipt of this addendum by inserting its number and date in the Bid Form.

Failure to do so may subject bidder to disqualification. This addendum forms a part of

the Contract Documents. It modifies them as follows:

Plans:

Replace Sheet C2 , C8 and C15 with Revised Sheets.

Specifications:

Section 00005 – Table of Contents

Replace Table of Contents in its entirety with the attached.

Section 00311 – Bid Form

Replace Bid Form in its entirety with the attached.

Section 01410 – Testing Lab Services

This section has been added in it’s entirety.

Section 02018 – Vibration Monitoring

This section has been added in it’s entirety.

Section 02722 – Sewers: Sanitary Gravity

This section has been added in it’s entirety.

Questions:

Q1: When is the anticipated start date?

A1: We are anticipating having approval to start by late April 2026.

Q2: Can Laurel Street be shutdown? If so, how long? If not, what are the restrictions?

A2: For the base bid (no required night work), Laurel Street cannot be completely

closed. But lane closures will be allowed. For the Night work alternate, Laurel

street can be completely closed during the night work hours Sunday through

Thursday night 9pm to 7am), but must be opened up each morning.

Q3: Are we to demo/remove all of the old storm drainage and then come back and install

the new storm drainage, or are we to remove and replace as we go?

A3: Removing and replace as you go. Drainage will need to be maintained during the

construction process.

Q4: Are we required to patch back laurel street every night, or are we able to put GABC

back in the trench until we are ready to pave?

A4: GABC will be allowed in the trench after every construction shift (night or day).

Paving is not required after every shift. Paving will need to be performed at least

every 2 weeks, dependent on what and how much is open cut and not paved.

Q5: Note #9 on Plan C6, is the contractor required to provide temporary detection for

the 3rd & 4th Ave. Intersections or will this be the responsibility of the owner? If it is

the responsibility of the contractor, what will be required for this?

A5: This is a SCDOT requirement and it is the responsibility of the contractor. Camera

detection has been used in the past on underground conversion projects to satisfy

this requirement.

Q6: What are the allowable number of days for this project?

A6: Contract time is 120 days for this project.

Q7: Nightwork Premiums Alternate, what exactly should this price contain? If we are

required to do portions of this work at night, and other portions during the day, why

would we need a nightwork premiums alternate?

A7: Any lane closures within SCDOT ROW (3rd & 4th Avenues) are required to performed

as nightwork only and any costs associated with should be included in the overall

price in the base bid. Also included in the base bid is all the work shown in Laurel

Street as normal daytime work utilizing lane closures. The alternate for nightwork

premiums is any additional costs needed to perform all construction in Laurel

Street as nightwork (Sunday-Thursday night 9pm-7am).

Q8: If pipe bursting is used, how are we to tie-in the sewer services on a fused HDPE

Pipe?

A8: Connect sewer services to HDPE per Section 02726, utilizing service saddle Romac

CB type or approved equal.

Q9: Can a tra ic control plan be provided? A tra ic control plan for the SCDOT roads is

included on sheet C32.

A9: If Laurel Street construction is performed during the day it will also need to be

performed with lane closures and the Contractor will need to submit tra ic control

plan. If work is performed as nightwork, the entire Laurel Street block can be closed

during the construction shift, provided it is opened every morning. Contractor can

submit revised tra ic control plans if desired for approval.

Q10: Can the conﬂict boxes be Pre-cast with knock-out panels?

A10: Yes, as long as they conform to SCDOT standards.

Q11:

A11:

When installing the new sewer line, will the city accommodate the

businesses/residents that will be out of service?

Sewer tangent rehabilitation / replacement and reconnecting of services should

occur as nightwork when sewer ﬂows are at their lowest, per Note 11 – Sheet C10.

Contractor is responsible for coordinating and maintaining ﬂow of customers during

construction.

Q12: Plans C2, Is the contractor required to pay for the relocation of dry utilities?

A12: Yes, the contractor is responsible for all utility relocations required in order to install

the project.

Q13: Plans C2, Plans state all excavation is unclassiﬁed, are we to remove and replace all

existing soils with select ﬁll?

A13: Yes.

Q14:

A14:

SCDOT notes state that no dewatering shall take place in the SCDOT ROW, please

explain how we are to dewater.

We discussed this further with SCDOT. Temporary Construction dewatering is

allowed within the ROW. This discharge needs to be cleaned and pumped though a

ﬁlterbag and not discharged directly into the surface of the SCDOT ROW.

Q15: Who is required to pay for geotechnical testing, owner or contractor?

A15: Contractor

Q16:

A16:

Plans C3, Plans state that major construction activities are required to be

completed at night. Please clarify which portions of the project can be completed

during the day and what items are required to be at night.

Any construction activities requiring a lane closure on a SCDOT roadway is required

to be completed at night. The potholing and camera work occurring on Laurel Street

can be performed during daytime hours utilizing lane closures as necessary. If the

nightwork alternate is selected for Laurel Street, the potholing and camera work can

still take place during day time hours, while the Installation of storm drainage, water,

and sewer would be required to take place at night.

Q17:

A17:

Plans state to begin work on the upstream side of the project. Is there a reason for

this? Are we able to begin at the downstream end?

Work can begin on the downstream side of the project. General Note 6 on Plan

Sheet C2 has been removed via this addendum. The Construction Sequence on

Plan Sheet C3 has more detailed information on which items will likely need to be

constructed ﬁrst, but starting at the downstream end of the drainage system is

preferred.

Q18:

A18:

Please be more speciﬁc about the camera of the existing drainage. Will each joint

need to be inspected? Please clarify.

The purpose of the camera work on the existing drainage system is to identify any

connections to the drainage system that were not evident during the survey, so that

these can be planned for prior to the excavation, demolition and installation of the

storm drainage. The potholing of all known potential crossings will aid in this as

well.

Q19: Plans C6, note 10 states that the existing conduits/wiring for the tra ic signals are to

be relocated if they conﬂict with the proposed utilities. How are we to price this if we

do not know if they are in conﬂict?

A19: Assume it is in conﬂict and a bid item has been added for you to allocate your costs

for this. If these conduits & wiring turns out to not be in conﬂict, these items can be

deducted.

Q20:

A20:

Plans C6, note 10 states Laurel Street may contain existing concrete pavement, how

are we to price this? Are we to assume the entirety of Laurel Street to have this

concrete pavement? Should this concrete pavement exists there any indication of

the thickness? Can the engineers perform pavement cores before the bid opening to

provide this information?

In previous excavations, 2-3” of asphalt was encountered and approximately 6-8” of

concrete under the asphalt has been encountered. Although this is not guaranteed

to be uniform across the entire roadway cross section. No bores are being provided

although signiﬁcant excavations have taken place in Laurel Street in recent years

which all resulted in similar ﬁndings. Areas that have been previously excavated will

have no concrete layer.

Q21:

A21:

What is the existing thickness of asphalt on Laurel Street? If unknown, what should

we assume?

In previous excavations, 2-3” of asphalt was encountered and approximately 6-8” of

concrete under the asphalt has been encountered.

Q22:

A22:

Utility plans state to pump and haul while pipe working on the existing sewer line.

What are the ﬂows we should expect? Is there a way to set up bypass pimping to

avoid vac-trucks?

According to the City of Conway Utilities department, the ﬂow can be very low

during the overnight hours on this section of sewer (less than 20 gpm) provided

there has not been recent rains. Bypass pumping can be utilized instead of pump

and haul. Contractor will need to provide a plan prior to construction.

Q23: There are three di erent backﬁll details, please clarify which should be used for this

project.

A23: A revised Plan sheet C15 is being provided with the required bedding.

Q24:

A24:

Will this project require vibration monitoring? If so, is the owner or contractor

responsible?

Vibration Monitoring will be required, and speciﬁcation section 02018 is being

added. The contractor will be responsible for the monitoring. Include costs for this

into the most applicable bid items.

This page summarizes the opportunity, including an overview and a preview of the attached documents.

RIA Laurel Street Stormwater Upgrades - Addendum 1

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