UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant  ☒                             Filed by a party other than the Registrant  ☐

Check the appropriate box:

☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to §240.14a-12

ADVANCED DRAINAGE SYSTEMS, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

☒	No fee required.
☐	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
	(1)	Title of each class of securities to which transaction applies:
	(2)	Aggregate number of securities to which transaction applies:
	(3)	Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
	(4)	Proposed maximum aggregate value of transaction:
	(5)	Total fee paid:
☐	Fee paid previously with preliminary materials.
☐	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
	(1)	Amount previously paid:
	(2)	Form, Schedule or Registration Statement No.:
	(3)	Filing party:
	(4)	Date Filed:

*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on July 17, 2017.

		Meeting Information
		Meeting Type:	Annual Meeting
ADVANCED DRAINAGE SYSTEMS, INC./WMS		For holders as of:	May 24, 2017
		Date:  July 17, 2017	Time: 10:00 AM Eastern Time
		Location:  Meeting live via the Internet-please visit
	ADVANCED DRAINAGE SYSTEMS, INC./WMS	www.virtualshareholdermeeting.com/WMS2017.
	4640 TRUEMAN BOULEVARD   HILLIARD, OH 43026	The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/WMS2017 and be sure to have the information that is printed in the box marked by the arrow (located on the following page). You are receiving this communication because you hold shares in the company named above or you are a participant in the Advanced Drainage Systems, Inc. Employee Stock Ownership Plan.
		This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
		We encourage you to access and review all of the important information contained in the proxy materials before voting.
		See the reverse side of this notice to obtain proxy materials and voting instructions.

Before You Vote  

How to Access the Proxy Materials

  Proxy Materials Available to VIEW or RECEIVE:

  NOTICE AND PROXY STATEMENT        FORM 10-K        

  How to View Online:

  Have the information that is printed in the box marked by the arrow (located on the following page)   and visit: www.proxyvote.com.

  How to Request and Receive a PAPER or E-MAIL Copy:

  If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a   copy. Please choose one of the following methods to make your request:

                                 1) BY INTERNET:         www.proxyvote.com

                                 2) BY TELEPHONE:     1-800-579-1639

                                 3) BY E-MAIL*:             sendmaterial@proxyvote.com

  *  If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the   arrow (located on the following Page) in the subject line.

  Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor.

  Please make the request as instructed above on or before July 3, 2017 to facilitate timely delivery.

How To Vote  

Please Choose One of the Following Voting Methods

          Vote By Internet:         Before The Meeting: Go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.         During The Meeting:   Go to www.virtualshareholdermeeting.com/WMS2017. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.     Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.  

Voting Items

The Board of Directors recommends you vote FOR all of the nominees listed and FOR proposals 2,3,4 and 5.

1.      Election of Directors

         1a.  Joseph A. Chlapaty

         1b.  Tanya Fratto

         1c.  Carl A. Nelson, Jr.

2.       Ratification of the appointment of Deloitte & Touche LLP as the Company’s Independent Registered

          Public Accounting Firm for fiscal year 2018.

3.       Approval, in a non-binding advisory vote, of the compensation for named executive officers.

4.       Approval of the Advanced Drainage Systems, Inc. 2017 Omnibus Incentive Plan.

5.       Approval of the material terms of the performance measures under the 2017 Omnibus Incentive Plan for

          purposes of Internal Revenue Code Section 162(m).

NOTE: Such other business as may properly come before the meeting or any adjournment thereof.