23-122 addendum #1

Purchasing Division

11360 Lakefield Drive | Johns Creek, GA 30097 | JohnsCreekGA.gov | 678-512-3200 | Fax: 678-512-3244

ADDENDUM #1

Invitation to Bid (ITB)

Bid #23-122

TAYLOR ROAD LEFT TURN LANE PROJECT

To All Prospective Offerors:

To follow is Addendum Number #1 for the above solicitation.

1. Summary from Prebid meeting that took place at City Hall on Tuesday 4/13/2023 10AM (optional attendance). Q&A from Prebid meeting.

2. Questions asked in BidNet up until the Q&A Deadline.

3. Revised plans PDF

4. Arborist recommendation PDF

5. Special handrail design PNG

6. Revised cost line items

Project Overview:

Overview of Map Page 1 of project plans. It simple Left turn project into a school driveway.

Project includes sidewalk replacement on the road. Highlighted in the plans is a tree the City desires to save new station #6 including the installation of a wall to be included in a design of the plans?

QUESTIONS ASKED DURING THE PREBID MEETING

Q1: Awarding project at the end of the school year?

A1: Contract to be approved in May and NTP expected the end of May to begin work in June.

End of Questions from the Prebid meeting

Bid Due Dates for the RFQ:

All proposal submissions are due electronically in BidNet no later than 2:00 PM ET Tuesday, May 2, 2023. Electronic submission in BidNet, Please fill out the required forms and color scan into 1 PDF with any certifications your firm have. Next you will enter your unit costs directly into BidNet. Any questions regarding bid submissions, feel free to email purchasing@johnscreekga.gov.

mailto:purchasing@johnscreekga.gov

Purchasing Division

11360 Lakefield Drive | Johns Creek, GA 30097 | JohnsCreekGA.gov | 678-512-3200 | Fax: 678-512-3244

All addendums are electronically acknowledged at submission of bid within BidNet. Firms shall include this acknowledgement of receiving ITB 23-122 addendum #1 and included with your forms and documents.

Firm: ______________________________________

Signature: __________________________________

Date:__________________

Questions & Answers - 1

Project 23-122 - Taylor Road Left Turn Lane

Buying Organization The City of Johns Creek

No Question/Answer Question Date

Q1 Question: Pavement Fabric Strips

I was looking into this job and saw there are no pavement fabric strips in the bid schedule. Please let us know if this item will be added?

Answer: Pavement fabric strips will be added to the bid schedule. An updated quantities list with the pavement fabric strips is included in Addendum 1.

04/25/2023

Q2 Question: Water Line Conflict

Will the city be in charge of relocating the water line, if yes, will the contractor be responsible for coordinating with Public Works? Or who will have the responsibility of resolving this conflict?

Answer: The City coordinates with Fulton County to resolve any conflicts with existing water lines. For this project, the existing water line underneath Taylor Road is NOT in conflict. A 6-inch concrete pad will be installed on top of the existing water line to provide a buffer between the water line and proposed storm water structures. The updated final construction plans with this revision as well as the quantities for the concrete pad are included in Addendum 1.

04/25/2023

Q3 Question: Water Line Conflict

Will resolving the water line conflict be done outside the 60 days to complete the project?

Answer: The existing water line underneath Taylor Road is NOT in conflict with the project. The

Contractor will install the 6-inch concrete pad.

04/25/2023

Q4 Question: Poles Conflict

Please provide detail for sidewalk realignment at STA 105+20 due to the conflict with the telephone and power poles.

Answer: The updated final construction plans in Addendum 1 include the utility pole relocation at STA

105+00. The City has been coordinating with Sawnee EMC and attached utilities. Grading at the new pole location must be performed by Contractor before the new pole will be installed. Contractor will need to coordinate with Sawnee EMC and attached utilities as needed throughout construction. The

City has given Sawnee EMC and attached utilities the Notice to Proceed for relocation.

04/25/2023

Q5 Question: Tree Removal

Please confirm that we can remove the 3 pines at Sta. 105+70 and the 2 small trees at Sta. 140+25. Is any permit required?

Answer: Yes, the City confirms that the three pines at STA 105+70 and the two small trees at STA

140+25 can be removed. No permit is required.

04/25/2023

No Question/Answer Question Date

Q6 Question: Tree Preservation

Regarding the tree that you want to preserve, will the city provide an arborist or will the arborist be under the contractor's responsibility?

Answer: Addendum 1 includes arborist recommendations to save the tree. The City will provide skilled arborist services to assist with the tree-saving measures noted in the recommendations. Contractor to coordinate with City and arborist to ensure these measures are followed.

04/25/2023

Q7 Question: Tree Preservation

It is possible that during the retaining wall construction, some roots of the tree have to be cut, which could cause the death of the tree, if this were to happen, what is the replacement plan? Or what would be the procedure to follow?

Answer: Addendum 1 includes the recommendations for constructing the retaining wall to save the tree. However, the City acknowledges the possibility that the tree might not be saved during the construction of the retaining wall, in which case the tree will be removed through a City contractor with no retaining wall built.

04/25/2023

Q8 Question: Rock Excavation

In the vicinity of station 104+75, there seem to be traces of rock with the shape of "07" or "OZ", there was some foundation of a structure there? Is it possible that exists a rock on this slope and we will have to incur rock excavation activities? Please clarify.

Answer: The City is not aware of any rock in this area.

04/25/2023

Q9 Question: Retaining Wall

Is there already a final design for the retaining wall that will be built to preserve the tree?

Answer: The final design for the retaining wall to preserve the tree is included in the updated final construction plans in Addendum 1. A handrail needs to be installed on the retaining wall. Addendum 1 includes the handrail detail and updated quantities.

04/25/2023

Taylor Road Operational Improvements

Re: Tree at ~106+50 LT, Recommendations From the City Arborist

At construction:

Tree root zone should be partitioned with silt fencing from the limit of disturbance and following, at minimum, along the drip line of the canopy. Alternatively, silt fencing should be placed 25 feet (based on tree diameter) from the base of the tree all the way around the tree. The area inside the silt fence should be kept clean of any and all construction debris. This area should also be mulched with approximately 2-4 inches of biodegradable mulch (wood chips, pinestraw, etc) The builder should be capable of most of this but may need a landscape service to mulch.

Severed roots from any earth moving should be clean cut. The jagged ripped edges caused by construction and digging are bad for tree health. At time of root exposure, roots 2" in diameter and larger should be clean cut with a chainsaw, loppers, hand saw or other such tool.

Additionally, ends of these roots should be treated with a fungicide to limit infection during construction. This will need to be provided by someone with a license to treat trees and shrubs and the root pruning should ideally be overseen by a certified arborist.

Following construction:

There is a lingering construction impact time for such operations of 3-5 years. The tree should be fertilized through soil injection for minimally 3 years (once in spring with a slow release product) to help recover lost root systems and keep nutrients available to the persisting root system. The tree should also be treated for boring insects like ambrosia beetle, which often kill stressed trees like this one will be during construction. That program should also continue for 3 years so as to protect the tree from this sort of invasion during recovery.

The tree should also be inspected at LEAST annually by a certified arborist to monitor recovery and potential risks. You will receive some pricing info on this portion of services later but this should be completed by a licensed applicator and the program should be overseen by a certified arborist.