SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. 3) *

InfraREIT, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

45685L100

(CUSIP Number)

December 31, 2018

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

	X	Rule 13d-1(b)

		Rule 13d-1(c)

		Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Page 1 of 7

CUSIP No.

45685L100

1	NAME OF REPORTING PERSON Manulife Financial Corporation

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ☐ (b) ☐
	N/A

3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION Canada

Number of Shares Beneficially Owned by Each Reporting Person With		5	SOLE VOTING POWER

			-0-

		6	SHARED VOTING POWER

			-0-

		7	SOLE DISPOSITIVE POWER

			-0-

		8	SHARED DISPOSITIVE POWER

			-0-

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	None, except through its indirect, wholly-owned subsidiaries, John Hancock Life Insurance Company (U.S.A.)
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

	N/A

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

	See line 9 above.

12	TYPE OF REPORTING PERSON*

	HC

*SEE INSTRUCTIONS

Page 2 of 7

CUSIP No.

45685L100

1	NAME OF REPORTING PERSON John Hancock Life Insurance Company (U.S.A.)

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ☐ (b) ☐
	N/A

3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION Michigan

Number of Shares Beneficially Owned by Each Reporting Person With		5	SOLE VOTING POWER

			4,276,235

		6	SHARED VOTING POWER

			-0-

		7	SOLE DISPOSITIVE POWER

			4,276,235

		8	SHARED DISPOSITIVE POWER

			-0-

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	4,276,235
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

	N/A

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

	9.73%

12	TYPE OF REPORTING PERSON*

	IC

*SEE INSTRUCTIONS

Page 3 of 7

Item 1(a)	Name of Issuer:
	InfraREIT, Inc.

Item 1(b)	Address of Issuer's Principal Executive Offices: 1900 North Akard Street Dallas, Texas 75201

Item 2(a)	Name of Person Filing: This filing is made on behalf of Manulife Financial Corporation ("MFC") and MFC’s indirect, wholly-owned subsidiary John Hancock Life Insurance Company (U.S.A.).

Item 2(b)	Address of Principal Business Office: The principal business offices of MFC is located at 200 Bloor Street East, Toronto, Ontario, Canada, M4W 1E5. The principal business office of John Hancock Life Insurance Company (U.S.A.) is located at 200 Berkeley Street, Boston MA 02117, United States.

Item 2(c)	Citizenship: MFC is organized and exist under the laws of Canada. John Hancock Life Insurance Company (U.S.A.) is organized and exists under the laws of the State of Michigan.

Item 2(d)	Title of Class of Securities: Common Stock

Item 2(e)	CUSIP Number: 45685L100

Item 3	If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

	MFC:	(g) (X)	a parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G).

	John Hancock Life Insurance Company (U.S.A.)
		(c) (X)	an insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

Item 4	Ownership:

	(a) Amount Beneficially Owned: John Hancock Life Insurance Company (U.S.A.) has beneficial ownership of 4,276,235 shares of Common Stock. Through its parent-subsidiary relationship to John Hancock Life Insurance Company (U.S.A.), MFC may be deemed to have beneficial ownership of these same shares.

	(b) Percent of Class: Of the 43,962,167 shares outstanding as of October 29, 2018 according to the Form 10-Q filed by the issuer with the Securities and Exchange Commission on November 13, 2018, John Hancock Life Insurance Company (U.S.A) held 9.73%.

	(c) Number of shares as to which the person has:

	(i)	sole power to vote or to direct the vote: John Hancock Life Insurance Company (U.S.A.) has sole power to vote or to direct the voting of the shares of Common Stock beneficially owned by each of them.

	(ii)	shared power to vote or to direct the vote: -0-

	(iii)	sole power to dispose or to direct the disposition of: John Hancock Life Insurance Company (U.S.A.) has sole power to dispose or to direct the disposition of the shares of Common Stock beneficially owned by each of them.

	(iv)	shared power to dispose or to direct the disposition of: -0-

Page 4 of 7

Item 5	Ownership of Five Percent or Less of a Class: Not applicable.

Item 6	Ownership of More than Five Percent on Behalf of Another Person: Not applicable.

Item 7	Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company or Control Person: See Items 3 and 4 above.

Item 8	Identification and Classification of Members of the Group: Not applicable.

Item 9	Notice of Dissolution of Group: Not applicable.

Item 10	Certification: By signing below the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Page 5 of 7

SIGNATURE

After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

	Manulife Financial Corporation

	By:	/s/ Susie Rafael
	Name:	Susie Rafael
Dated: February 6, 2019	Title:	Agent*

	John Hancock Life Insurance Company (U.S.A.)

	By:	/s/ Maureen Milet
	Name:	Maureen Milet
Dated: February 7, 2019	Title:	Vice President and Chief Compliance Officer - Investments

* Signed pursuant to a Power of Attorney dated January 17, 2018 included as Exhibit A to Schedule 13F-NT filed with the Securities and Exchange Commission by Manulife Financial Corporation on January 29, 2018.

Page 6 of 7

EXHIBIT A

JOINT FILING AGREEMENT

Manulife Financial Corporation, John Hancock Life Insurance Company (U.S.A.) agree that the Schedule 13G (Amendment No. 3) to which this Agreement is attached, relating to the Common Stock of InfraREIT, Inc., is filed on behalf of each of them.

	Manulife Financial Corporation

	By:	/s/ Susie Rafael
	Name:	Susie Rafael
Dated: February 6, 2019	Title:	Agent*

	John Hancock Life Insurance Company (U.S.A.)

	By:	/s/ Maureen Milet
	Name:	Maureen Milet
Dated: February 7, 2019	Title:	Vice President and Chief Compliance Officer - Investments

Page 7 of 7

InfraREIT, Inc. SC 13G/A