SO-1860 Hill EV Elec Infrastructure Addendum 1

Location:	Michigan
Posted:	May 28, 2026
Due:	Jun 4, 2026
Agency:	Lansing School District
Type of Government:	State & Local
Category:	D - Automatic Data Processing and Telecommunication Services
Publication URL:	To access bid details, please log in.

Attachment Preview

PRE-BID ADDENDUM NO. 1

TO SPECIFICATION 28172.00

OWNER:

Lansing Public School District

519 West Kalamazoo Street

Lansing, Michigan 48911

PROJECT:

Electric Vehicle Charger and Battery Storage Integration

with Hill Center Resiliency Project #SO-1860

CONTRACT FOR: Construction

ENGINEER:

CTC Engineering, LLC

3915 Research Park Dr., Ste. A-8

Ann Arbor, Michigan 48108

INTENT:

The following is intended to be a clarification to the Contract Documents

based upon the questions offered as a result of the Pre-Bid Walk Through

on May 20, 2026.

DRAWINGS:

The submittals for the EV Chargers are attached herewith for reference only.

The following drawings accompany this Addendum:

• Sheet 28172.00, E-2

• Sheet 28172.00, E-2.1

• Sheet 28172.00, E-5

PROJECT MANUAL: -No sections are reissued with this Addendum-

CLARIFICATIONS:

A. Note that the bid proposals can be hand delivered, or mailed, and must be received no later

than 2:00 pm, June 4, 2026 at: Lansing School District, Attn: Purchasing/Sealed Bid SO-

1860, 519 W. Kalamazoo St, Lansing, Michigan 48933.

B. Attached is the bidders list of those Contractors that attended the pre-bid walk through held

on May 20, 2026.

C. The following questions and associated clarifications are made part of and binding to the

Contract documents:

1. Are the EV chargers part of this Contract?

Response: The acquisition of the EV chargers is not under this Contract, as they have

already been purchased by the Owner. The installation of the chargers is under this

Contract and shall be assigned to the Contractor at the site.

2. Will there be for construction drawing issued for bidding or are we to bid from the

drawings labeled “preliminary – Not to be used for construction”?

Response: You are to bid from the documents issued as part of this package. The “For

Construction” documents will be issued at the time of award.

3. Will yellow Ideal plastic bollard protection sleeves be allowed in lieu of painting the

bollards?

Response: Yes.

4. Where are TR-1 and Panel GA-1 located?

Response: Sheet E-2 shows the overall equipment locations. Please see Sheet 28172.00

E-2.1 for more specific locations.

5. Please provide specs or a submittal of the owner provided bus EV chargers.

Response: Please see the attached submittals for the EV Chargers.

6. Who is responsible for final installation and startup of the Bus EV chargers?

Response: The final installation is under this Contract but the startup will be performed

by others.

7. Do the EV chargers require a data connection?

Response: Yes.

8. Is the fencing included in this project? The civil drawings show it as by others, but

the electrical drawings have details on how to install it. Are there further details on

the fencing? Fabric type? Post thickness? Gate dimensions?

Response: The fencing is part of this project in its entirety. In the Project Manual, please

see section #32 3100, for the specific specifications for the fencing and operators.

9. Who is responsible for the gate operator? If contractor, please provide specs on it.

Response: In the Project Manual, please see section #32 3100.

10. Will the gate operators require a traffic loop for exit?

Response: In the Project Manual, please see section #32 3100, page 3.

11. What will open the gate operators?

Response: In the Project Manual, please see section #32 3100, page 3.

12. Will there be civil specs provided for this project? The only specs are electrical.

Response: Civil specifications are provided on the civil sheets.

13. Is civil testing part of this project? Who is responsible for paying the cost of civil

testing?

Response: Civil testing is by a third party, obtained and paid for by the Owner.

14. What is expected for pavement markings or are these by others?

Response: Pavement markings are under this contract and shall conform to MDOT

specifications.

15. Please provide a base detail for the bus EV chargers.

Response: The base detail is shown in the submittals herewith. The base plate of the

charger is to be bolted in place direct to the concrete.

16. Please provide a more detailed/larger plan for the bus charger arrangement showing

the bollard spacing and bus EV charger layout

17. Response: Please see Sheet 28172, E-2.1 for an enlarged view of this area.

18. Please clarify how the tap in the existing switch is to be made and where this

equipment is on the plans. Can plans be provided indicating what and where each

piece of equipment is?

Response: These have been provided and are attached.

19. How long do you anticipate the Note #3 (sheet E-1) to be? It appears the tap length

may dictate overcurrent protection is needed for the tap conductors prior to reaching

the location shown for the 600A ATS.

Response: The is using the tap rule as indicated in Section 240.21 (B)(5) of the National

Electrical Code. The over-current protection in the ATS would be the required device

as identified in Section 240.21 (B)(5)(3).

20. The drawings indicate the solar array will not operate during a utility outage,

however it appears if you are back feeding the school switchboard from the

buses/BESS then the array will in fact see power at the tap and start pushing power

back to the system. No electronics are indicated to be added to the existing solar

switch to accept a signal from the SEL-751 to open it if there is a utility loss and the

buses/BESS are sent to a back feed scenario.

Response: The control of the solar array invertors, automatic transfer switches, EV

chargers and the future BESS is not under this Contract. The control conductors and

the termination thereof are however, under this Contract. The point-to-point

terminations will be issued after all submittals have been made.

21. Can you indicate where on the drawings the “Existing switch” below (left side) is located

that the 600 Amp tap will be made?

a. Does this tap need overcurrent protection?

Response: Please see response to [22] below.

22. Can the 600 Amp tap be completed anywhere in the existing main switchboard sections?

Does this tap need to be designed by Eaton or be UL field listed?

Response: It is anticipated that the tap at the existing switch would

be made at the load side of the switch with additional lugs with

respect to the existing switch feeding the existing solar panels. With

respect to the existing indoor distribution panel, it is anticipated that

a direct connection can be made to the low voltage bus, and then

by the tap rule, fed to the ATS.

23. Please clarify what is wanted for mesh reinforcement in the heavy duty concrete? We

assume this means W6x6 W2.9 but are unclear on what the SV stands for.

Response: The SV notation stands for

“smooth wire with deformed wire”, with the

W2.9 referring to the wire size.

- END OF PRE-BID ADDENDEM #1 -

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

SO-1860 Hill EV Elec Infrastructure Addendum 1

Attachment Preview

See also