DCKA-2025-Q-0080_Amd4.pdf

AMENDMENT OF SOLICITATION / MODIFICATION OF CONTRACT

1. Solicitation Number Page of Pages

DCKA-2025-Q-0080 1 2

2. Amendment/Modification Number 3. Effective Date 4.

Requisition/Purchase Request No.

5. Solicitation Caption

INSPECTION AND ENGINEERING SUPPORT SERVICES FOR

TUNNELS

Amendment No. 4 See Box 16C N/A

6. Issued by: Code 7. Administered by (If other than line 6)

District Department of Transportation Office of Contracting and Procurement 250 M Street, SE, 7th Floor Washington, DC 20003

8. Name and Address of Contractor (No. street, city, county, state and zip code)

X

9A. Amendment of Solicitation No.

DCKA-2025-Q-0080

TO ALL PROSPECTIVE OFFERORS 9B. Dated (See Item 11)

November 12, 2025

10A. Modification of Contractor/Order No.

10B. Dated (See Item 13) Code Facility

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in item 14. The hour and date specified for receipt of Offers is extended. is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing Items 8 and 15, and returning _____1_____ copies of the amendment: (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or

(c) BY separate letter or fax which includes a reference to the solicitation and amendment number. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such may be made by letter or fax, provided each letter or telegram makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. Accounting and Appropriation Data (If Required):

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTORS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14

A. This change order is issued pursuant to (Specify Authority):

The changes set forth in Item 14 are made in the contract/order no. in item 10A.

B. The above numbered contract/order is modified to reflect the administrative changes (such as changes in paying office, appropriation data etc.) set forth in item 14, pursuant to the authority of 27 DCMR, Chapter 36, Section 3601.2.

C. This supplemental agreement is entered into pursuant to authority of:

☐ D. Other (Specify type of modification and authority) Paragraph 15, Changes, Standard Contract Provisions

E. IMPORTANT: Contractor is not is required to sign this document and return one (1) copy to the issuing office.

14. Description of Amendment/Modification (Organized by UCF Section headings, including solicitation/contract subject matter where feasible.)

Solicitation No. DCKA-2025-Q-0080 is hereby amended as follows:

1. Please see questions and answers below:

15A. Name and Title of Signer (Type or print) 16A. Name of Contracting Officer

Louis Brown

15B. Name of Contractor 15C. Date Signed 16B. District of Columbia 16C. Date Signed

(Signature)

(Signature of Contracting Officer)

November 21, Questions:

1. In the last paragraph on page 38 within Section C.5.1.c.c, modeling tools are required to evaluate the ventilation system within the first contract year. This scope is typically part of design tasks and not NTIS inspections. Would the DDOT consider moving this scope to within the Tunnel Support Services IDIQ category? Do we need to provide a subconsultant that can perform these services as part of our team or can this wait until specific task assignments are assigned?

a. The evaluation of the ventilation system with the new variable frequency drive (VFD) will be reassigned and addressed under Tunnel Supporting Services category. Accordingly, there is no need to provide a subconsultant to perform this evaluation.

2. Are SF330 Part II forms needed for subconsultants?

a. No. SF 330 Part II is required only for the prime consultant. Proposed subconsultants should be identified in SF 330 Part and their roles and qualifications described in the appropriate sections

3. For the Tunnel Team Leader Key Staff role on both the NTIS Inspection Category and Tunnel Support

Services Category, does DDOT want one (1) Tunnel Team Leader proposed for the team that will be responsible for the duration of all field work or can we provide multiple Tunnel Team Leaders as part of our team structure?

a. Offerors may include multiple qualified tunnel team Leaders across all relevant disciplines, provided that those team leaders will be engaged in the execution of the assigned tasks.

4. Will DDOT allow pages in landscape orientation (11” x 8.5”) to accommodate tables in our Section H?

a. Yes, DDOT will allow pages in landscape orientation (11” x 8.5”) to accommodate tables in

Section H