    <SEC-DOCUMENT>0001193125-23-061575-index.html : 20230306
    <SEC-HEADER>0001193125-23-061575.hdr.sgml : 20230306
    <ACCEPTANCE-DATETIME>20230306171422
    ACCESSION NUMBER:		0001193125-23-061575
    CONFORMED SUBMISSION TYPE:	N-CSR
    PUBLIC DOCUMENT COUNT:		41
    FILED AS OF DATE:		20230306
    DATE AS OF CHANGE:		20230306
    EFFECTIVENESS DATE:		20230306

    FILER:

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

    	FILING VALUES:
    		FORM TYPE:		N-CSR
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-22606
    		FILM NUMBER:		23709905

    	BUSINESS ADDRESS:
    		STREET 1:		100 BELLEVUE PARKWAY
    		CITY:			WILMINGTON
    		STATE:			DE
    		ZIP:			19809-3700
    		BUSINESS PHONE:		(800) 882-0052

    	MAIL ADDRESS:
    		STREET 1:		100 BELLEVUE PARKWAY
    		CITY:			WILMINGTON
    		STATE:			DE
    		ZIP:			19809-3700

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	BlackRock Utility & Infrastructure Trust
    		DATE OF NAME CHANGE:	20110830
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSR
    <SEQUENCE>1
    <FILENAME>d447258dncsr.htm
    <DESCRIPTION>BLACKROCK UTILITIES, INFRASTRUCTURE & POWER OPPORTUNITIES TRUST
    <TEXT>
    Document 1 - file: d447258dncsr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CERT
    <SEQUENCE>2
    <FILENAME>d447258dex99cert.htm
    <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
    <TEXT>
    Document 2 - file: d447258dex99cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.906CERT
    <SEQUENCE>3
    <FILENAME>d447258dex99906cert.htm
    <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906
    <TEXT>
    Document 3 - file: d447258dex99906cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.SECTION19
    <SEQUENCE>4
    <FILENAME>d447258dex99section19.htm
    <DESCRIPTION>SECTION 19 NOTICES
    <TEXT>
    Document 4 - file: d447258dex99section19.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CONSENT
    <SEQUENCE>5
    <FILENAME>d447258dex99consent.htm
    <DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
    <TEXT>
    Document 5 - file: d447258dex99consent.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.PROXYPOL
    <SEQUENCE>6
    <FILENAME>d447258dex99proxypol.htm
    <DESCRIPTION>PROXY VOTING POLICY AND PROCEDURES
    <TEXT>
    Document 6 - file: d447258dex99proxypol.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.GLOBALCORPGOV
    <SEQUENCE>7
    <FILENAME>d447258dex99globalcorpgov.htm
    <DESCRIPTION>GLOBAL CORPORATE GOVERNANCE & ENGAGEMENT PRINCIPLES
    <TEXT>
    Document 7 - file: d447258dex99globalcorpgov.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.USCORPGOV
    <SEQUENCE>8
    <FILENAME>d447258dex99uscorpgov.htm
    <DESCRIPTION>CORPORATE GOVERNANCE AND PROXY VOTING GUIDELINES FOR U.S. SECURITIES
    <TEXT>
    Document 8 - file: d447258dex99uscorpgov.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>9
    <FILENAME>cik0001528988-20230306.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 9 - file: cik0001528988-20230306.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>10
    <FILENAME>cik0001528988-20230306_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 10 - file: cik0001528988-20230306_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>11
    <FILENAME>cik0001528988-20230306_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 11 - file: cik0001528988-20230306_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>12
    <FILENAME>cik0001528988-20230306_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 12 - file: cik0001528988-20230306_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g412750dsp17n.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g412750dsp17n.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g412750g00s01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g412750g00s01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g412750g00s02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g412750g00s02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g412750g0228085941376.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g412750g0228085941376.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g412750g0228092419143.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g412750g0228092419143.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>g412750g42l24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g412750g42l24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>g447258g1dsp025.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g447258g1dsp025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>g447258g1dsp028.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: g447258g1dsp028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>g447258g1dsp031.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: g447258g1dsp031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>g447258g1dsp034.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: g447258g1dsp034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>g447258g1dsp10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: g447258g1dsp10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>g447258g1dsp13.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: g447258g1dsp13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>g447258g1dsp16.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: g447258g1dsp16.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>g447258g1dsp19.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: g447258g1dsp19.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>g447258g1dsp22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: g447258g1dsp22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>g447258g1dsp37.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: g447258g1dsp37.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>g447258g1dsp41.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: g447258g1dsp41.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>g447258g1dsp7.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: g447258g1dsp7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>g447258g1g42l24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: g447258g1g42l24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>g447258g1leaf.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: g447258g1leaf.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>g447258g1photo_01mips.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: g447258g1photo_01mips.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>g447258g1sig_01mips.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: g447258g1sig_01mips.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>35
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 35 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>36
    <FILENAME>d447258dncsr_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 36 - file: d447258dncsr_htm.html

    Document 36 - RAW XML: d447258dncsr_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>37
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 37 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>38
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 38 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>39
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 39 - file: FilingSummary.html

    Document 39 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>41
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 41 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>42
    <FILENAME>0001193125-23-061575-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 42 - file: 0001193125-23-061575-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>