<SEC-DOCUMENT>0000950123-11-099558.txt : 20120406
<SEC-HEADER>0000950123-11-099558.hdr.sgml : 20120406
<ACCEPTANCE-DATETIME>20111118165809
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000950123-11-099558
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20111118

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BlackRock Utility & Infrastructure Trust
		CENTRAL INDEX KEY:			0001528988
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		55 EAST 52ND STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		(800) 882-0052

	MAIL ADDRESS:	
		STREET 1:		55 EAST 52ND STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
</SEC-HEADER>
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<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
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<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">BlackRock Utility and Infrastructure Trust<BR>
100 Bellevue Parkway<BR>
Wilmington, Delaware 19809
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">November&nbsp;18, 2011
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Securities and Exchange Commission<BR>
100 F Street N.E.<BR>
Washington, D.C. 20549<BR>
Attn: John Ganley

</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Re:</TD>
    <TD>&nbsp;</TD>
    <TD>BlackRock Utility and Infrastructure Trust<br>
Registration Statement on Form&nbsp;N-2<br>
<U>(File Nos. 811-22606 and 333-176661)</U></TD>
</TR>
</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Dear Mr.&nbsp;Ganley:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In accordance with Rule&nbsp;461 of the General Rules and Regulations under the Securities Act of
1933, as amended, BlackRock Utility &#038; Infrastructure Trust hereby requests acceleration of the
effective date of the above-captioned Registration Statement so that it may become effective by
12:00&nbsp;p.m., New York City time, on November&nbsp;22, 2011 or as soon as practicable thereafter.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Trust hereby acknowledges that: (1)&nbsp;it is responsible for the adequacy and accuracy of the
disclosure in the filing; (2)&nbsp;should the Securities and Exchange Commission (the &#147;Commission&#148;) or
the staff, acting pursuant to delegated authority, declare the filing effective, it does not
foreclose the Commission from taking any action with respect to the filing; (3)&nbsp;the action of the
Commission or the staff, acting pursuant to delegated authority, in declaring the filing effective,
does not relieve the Trust from its full responsibility for the adequacy and accuracy of the
disclosure in the filing; and (4)&nbsp;it may not assert the action as a defense to any proceeding
initiated by the Commission or any person under the federal securities laws of the United States.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Trust hereby requests that you notify Thomas A. DeCapo (617-573-4814) or Kevin T. Hardy
(312-407-0641) of Skadden, Arps, Slate, Meagher &#038; Flom LLP by telephone once the Registration
Statement has been declared effective.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
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    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">Sincerely,<BR>
<BR>
BLACKROCK UTILITY AND<BR>
INFRASTRUCTURE TRUST<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Janey Ahn
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Janey Ahn&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Assistant Secretary&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%"><B>1585 Broadway<BR>
New York, New York 10036</B>

</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt">November&nbsp;18, 2011
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Securities and Exchange Commission<BR>
100 F Street, N.E.<BR>
Washington, D.C. 20549

</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Re:</TD>
    <TD>&nbsp;</TD>
    <TD>BlackRock Utility and Infrastructure Trust<br>
Form&nbsp;N-2 Registration Statement No.&nbsp;333-176661<br>
Investment Company Act File No.&nbsp;811-22606</TD>
</TR>
</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Dear Commissioners:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to Rule&nbsp;460 of the General Rules and Regulations under the Securities Act of 1933, as
amended, we, on behalf of the several underwriters, wish to advise you that distribution of the
Registration Statement on Form N-2 filed on September&nbsp;2, 2011 and the Preliminary Prospectus filed
October&nbsp;26, 2011, began on October&nbsp;26, 2011 and is expected to conclude at approximately 5:00 p.m.,
Eastern Time, on November&nbsp;22, 2011, with anticipated distribution results as follows: a limited
number of Registration Statements have or will be sent to underwriters and approximately 97,170 copies
of the Preliminary Prospectus have or will be sent to underwriters, dealers and institutions.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In accordance with Rule&nbsp;461 of the General Rules and Regulations under the Securities Act of
1933, as amended, the undersigned, on behalf of the underwriters of the offering of shares of
common stock of the Fund, hereby joins in the request of the Fund for acceleration of the effective
date of the above-named Registration Statement so that it becomes effective at 12:00&nbsp;p.m., Eastern
Time, on November&nbsp;22, 2011 or as soon as possible thereafter.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">Very truly yours,<BR>
<BR>
MORGAN STANLEY &#038; CO. INCORPORATED<BR>
<BR>
On behalf of the several Underwriters<BR>
<BR>
By: MORGAN STANLEY &#038; CO. INCORPORATED<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Susan Portelli
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Susan Portelli&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Executive Director&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



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