UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM N-Q

 

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

 

Investment Company Act file number 811-21348

 

Name of Fund: BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809

 

Name and address of agent for service: John M. Perlowski, Chief Executive Officer, BlackRock Muni Intermediate Duration Fund, Inc., 55 East 52nd Street, New York, NY 10055

 

Registrant’s telephone number, including area code: (800) 882-0052, Option 4

 

Date of fiscal year end: 04/30/2011

 

Date of reporting period: 01/31/2011

 

Item 1 – Schedule of Investments

 

 

 

 

 

Schedule of Investments January 31, 2011 (Unaudited)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

(Percentages shown are based on Net Assets)

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Alabama — 3.0%

 

 

 

 

 

 

 

Birmingham Special Care Facilities
Financing Authority, RB, Children’s
Hospital (AGC), 6.00%, 6/01/34

 

$

4,615

 

$

4,785,893

 

County of Jefferson Alabama, RB,
Series A:

 

 

 

 

 

 

 

5.50%, 1/01/21

 

 

5,500

 

 

5,159,550

 

5.25%, 1/01/23

 

 

6,500

 

 

5,844,345

 

 

 

 

 

 

 

 

 

 

 

 

15,789,788

 

Arizona — 4.9%

 

 

 

 

 

 

 

City of Tucson Arizona, COP (AGC):

 

 

 

 

 

 

 

4.25%, 7/01/21

 

 

1,870

 

 

1,853,637

 

4.25%, 7/01/22

 

 

1,895

 

 

1,849,690

 

4.50%, 7/01/24

 

 

2,120

 

 

2,055,510

 

Refunding, 4.00%, 7/01/20

 

 

2,325

 

 

2,296,193

 

Maricopa County IDA Arizona, RB,
Arizona Charter Schools Project,
Series A, 6.63%, 7/01/20

 

 

2,610

 

 

1,989,446

 

Pima County IDA, RB:

 

 

 

 

 

 

 

Arizona Charter Schools Project,
Series C, 6.70%, 7/01/21

 

 

965

 

 

942,651

 

Charter Schools, Series K, 6.38%,
7/01/31

 

 

930

 

 

816,624

 

Pima County IDA, Refunding RB, Tucson
Electric Power Co., San Juan, Series A,
4.95%, 10/01/20

 

 

2,325

 

 

2,229,931

 

Salt River Project Agricultural
Improvement & Power District, RB,
Series A, 5.00%, 1/01/25

 

 

4,000

 

 

4,136,800

 

Scottsdale IDA, RB, Scottsdale
Healthcare, Series C (AGC), 5.00%,
9/01/35

 

 

7,710

 

 

7,057,657

 

State of Arizona, COP, Department of
Administration, Series A (AGM),
4.25%, 10/01/23

 

 

1,250

 

 

1,152,775

 

 

 

 

 

 

 

 

 

 

 

 

26,380,914

 

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

California — 17.8%

 

 

 

 

 

 

 

Antelope Valley Healthcare District
California, RB, Series A, 5.25%,
9/01/17

 

$

8,000

 

$

7,539,360

 

California Health Facilities Financing
Authority, Refunding RB, Sutter
Health, Series B, 5.00%, 8/15/22 (a)

 

 

2,135

 

 

2,112,476

 

California HFA, RB, Home Mortgage,
Series K, AMT, 4.55%, 8/01/21

 

 

3,805

 

 

3,291,439

 

California HFA, Refunding RB, Home
Mortgage, Series M, AMT, 4.55%,
8/01/21

 

 

7,210

 

 

6,546,175

 

California Pollution Control Financing
Authority, RB, AMT:

 

 

 

 

 

 

 

Republic Services Inc. Project,
Series B, Mandatory Put Bonds,
5.25%, 6/01/23 (b)

 

 

605

 

 

607,196

 

Waste Management Inc. Project,
Series A-2, 5.40%, 4/01/25

 

 

1,240

 

 

1,230,092

 

California Pollution Control Financing
Authority, Refunding RB, Pacific Gas,
Series C, AMT (FGIC), 4.75%,
12/01/23

 

 

9,035

 

 

8,514,042

 

California State Public Works Board, RB,
Department of Corrections, Series C,
5.50%, 6/01/20

 

 

10,000

 

 

10,099,100

 

California Statewide Communities
Development Authority, RB, Health
Facility, Memorial Health Services,
Series A, 6.00%, 10/01/23

 

 

2,500

 

 

2,574,850

 

City of Sacramento California, Special
Tax Bonds, North Natomas
Community Facilities, Series 4-C:

 

 

 

 

 

 

 

5.75%, 9/01/22

 

 

1,715

 

 

1,636,796

 

6.00%, 9/01/28

 

 

2,990

 

 

2,723,771

 

Golden State Tobacco Securitization
Corp. California, Refunding RB, Asset-
Backed, Senior Series A-1, 5.00%,
6/01/15

 

 

5,000

 

 

5,036,450

 

 

Portfolio Abbreviations

To simplify the listings of portfolio holdings in the Schedule of Investments, the names and descriptions of many of the securities have been abbreviated according to the following list:

 

 

AGC

Assured Guaranty Corp.

AGM

Assured Guaranty Municipal Corp.

AMBAC

American Municipal Bond Assurance Corp.

AMT

Alternative Minimum Tax (subject to)

ARB

Airport Revenue Bonds

BHAC

Berkshire Hathaway Assurance Corp.

CAB

Capital Appreciation Bonds

COP

Certificates of Participation

EDA

Economic Development Authority

EDC

Economic Development Corp.

FGIC

Financial Guaranty Insurance Co.

FHA

Federal Housing Administration

GARB

General Airport Revenue Bonds

GO

General Obligation Bonds

HFA

Housing Finance Agency

IDA

Industrial Development Authority

LRB

Lease Revenue Bonds

MRB

Mortgage Revenue Bonds

NPFGC

National Public Finance Guarantee Corp.

RB

Revenue Bonds

S/F

Single-Family

TIF

Tax Increment Financing

 

 

 

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011

1


 

 

 

 

Schedule of Investments (continued)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

(Percentages shown are based on Net Assets)

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

California (concluded)

 

 

 

 

 

 

 

Los Angeles Regional Airports
Improvement Corp. California,
Refunding RB, Facilities, LAXFUEL
Corp., LA International, AMT (AMBAC),
5.50%, 1/01/32

 

$

1,435

 

$

1,330,747

 

Rowland Unified School District
California, GO, Election of 2000,
Series B (AGM), 5.25%, 8/01/27

 

 

1,515

 

 

1,520,969

 

State of California, GO:

 

 

 

 

 

 

 

5.50%, 4/01/14 (c)

 

 

14,795

 

 

16,817,773

 

5.50%, 4/01/28

 

 

15

 

 

14,917

 

(NPFGC), 5.25%, 2/01/27

 

 

5,000

 

 

4,878,500

 

Refunding (AMBAC), 4.50%,
8/01/28

 

 

3,000

 

 

2,580,750

 

Various Purpose, 5.25%, 10/01/21

 

 

2,550

 

 

2,651,490

 

Various Purpose, 5.13%, 11/01/24

 

 

2,030

 

 

2,015,607

 

Various Purpose, 5.75%, 4/01/31

 

 

7,000

 

 

6,982,780

 

Various Purpose, 5.00%, 11/01/32

 

 

2,000

 

 

1,801,220

 

Tustin Unified School District California,
Special Tax Bonds, Senior Lien,
Community Facilities District 97-1,
Series A (AGM), 5.00%, 9/01/32

 

 

2,610

 

 

2,469,164

 

 

 

 

 

 

 

 

 

 

 

 

94,975,664

 

Colorado — 2.0%

 

 

 

 

 

 

 

Montrose Memorial Hospital, RB,
6.38%, 12/01/23

 

 

2,250

 

 

2,237,107

 

Plaza Metropolitan District No. 1
Colorado, Tax Allocation Bonds, Public
Improvement Fee, Tax Increment,
7.50%, 12/01/15

 

 

7,500

 

 

7,395,150

 

Southlands Metropolitan District No. 1,
GO, 6.75%, 12/01/14 (c)

 

 

840

 

 

959,910

 

 

 

 

 

 

 

 

 

 

 

 

10,592,167

 

Connecticut — 0.2%

 

 

 

 

 

 

 

Connecticut State Development
Authority, RB, Learjet Inc. Project,
AMT, 7.95%, 4/01/26

 

 

1,160

 

 

1,200,565

 

Florida — 4.4%

 

 

 

 

 

 

 

County of Miami-Dade Florida,
Refunding RB, Series C (BHAC),
5.00%, 10/01/23

 

 

8,000

 

 

8,309,040

 

Harbor Bay Community Development
District Florida, Special Assessment
Bonds, 6.75%, 5/01/34

 

 

2,770

 

 

2,006,422

 

Highlands County Health Facilities
Authority, Refunding RB, Adventist
Health, Series G, 5.13%,
11/15/16 (c)

 

 

35

 

 

40,825

 

Midtown Miami Community
Development District, Special
Assessment Bonds:

 

 

 

 

 

 

 

Series A, 6.00%, 5/01/24

 

 

3,190

 

 

2,953,302

 

Series B, 6.50%, 5/01/37

 

 

1,925

 

 

1,741,740

 

Panther Trace II Community
Development District, Special
Assessment Bonds, Special
Assessment, 5.13%, 11/01/13

 

 

1,820

 

 

1,601,673

 

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Florida (concluded)

 

 

 

 

 

 

 

Portofino Shores Community
Development District, Special
Assessment Bonds, Series A, 6.40%,
5/01/34

 

$

1,085

 

$

995,552

 

South Lake County Hospital District, RB,
South Lake Hospital Inc., 6.63%,
10/01/23

 

 

2,390

 

 

2,423,699

 

Sterling Hill Community Development
District, Special Assessment Bonds,
Refunding, Series B, 5.50%,
11/01/10 (d)(e)

 

 

160

 

 

111,872

 

University of Florida Research
Foundation Inc., RB (AMBAC), 5.13%,
9/01/33

 

 

4,000

 

 

3,320,240

 

 

 

 

 

 

 

 

 

 

 

 

23,504,365

 

Georgia — 1.3%

 

 

 

 

 

 

 

Fulton County Development Authority,
Refunding RB, Robert Woodruff,
Series B, 5.25%, 3/15/24

 

 

4,000

 

 

4,030,240

 

Medical Center Hospital Authority,
Refunding RB, Columbus Regional
Healthcare (AGM):

 

 

 

 

 

 

 

4.00%, 8/01/23

 

 

1,500

 

 

1,376,370

 

4.13%, 8/01/24

 

 

2,000

 

 

1,805,560

 

 

 

 

 

 

 

 

 

 

 

 

7,212,170

 

Guam — 0.8%

 

 

 

 

 

 

 

Territory of Guam, GO, Series A, 6.00%,
11/15/19

 

 

1,530

 

 

1,558,060

 

Territory of Guam, RB, Section 30,
Series A, 5.38%, 12/01/24

 

 

2,620

 

 

2,551,749

 

 

 

 

 

 

 

 

 

 

 

 

4,109,809

 

Idaho — 0.6%

 

 

 

 

 

 

 

Idaho Health Facilities Authority, RB,
St. Luke’s Regional Medical Center
(AGM), 4.63%, 7/01/30

 

 

3,700

 

 

3,251,375

 

Illinois — 11.5%

 

 

 

 

 

 

 

City of Chicago Illinois, ARB, General,
Third Lien, Series B-2, AMT:

 

 

 

 

 

 

 

(AGM), 5.75%, 1/01/23

 

 

8,130

 

 

8,242,600

 

(Syncora), 6.00%, 1/01/29

 

 

7,510

 

 

7,531,404

 

City of Chicago Illinois, Refunding ARB,
General, Third Lien, Series A-2, AMT
(AGM), 5.75%, 1/01/19

 

 

2,550

 

 

2,644,580

 

Du Page & Will Counties Community
School District No. 204 Indian, GO,
School Building, Series A (NPFGC),
5.25%, 12/30/22

 

 

8,650

 

 

9,150,921

 

Du Page County Forest Preservation
District Illinois, GO, Refunding,
Series A, 3.50%, 11/01/24

 

 

3,000

 

 

2,681,910

 

Illinois Finance Authority, RB, Community
Rehabilitation Providers Facilities,
Series A, 6.63%, 7/01/12 (c)

 

 

6,930

 

 

6,094,727

 

Railsplitter Tobacco Settlement
Authority, RB:

 

 

 

 

 

 

 

5.50%, 6/01/23

 

 

3,500

 

 

3,313,695

 

6.25%, 6/01/24

 

 

12,750

 

 

12,737,250

 

 

 

 

2

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011


 

 

 

 

Schedule of Investments (continued)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

(Percentages shown are based on Net Assets)

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Illinois (concluded)

 

 

 

 

 

 

 

State of Illinois, GO, First Series
(NPFGC), 5.13%, 2/01/20

 

$

1,335

 

$

1,318,633

 

Village of Hodgkins Illinois, RB, MBM
Project, AMT, 5.90%, 11/01/17

 

 

6,000

 

 

5,999,520

 

Village of Wheeling Illinois, Tax
Allocation Bonds, North
Milwaukee/Lake-Cook TIF Project,
6.00%, 1/01/25

 

 

1,525

 

 

1,340,124

 

 

 

 

 

 

 

 

 

 

 

 

61,055,364

 

Indiana — 0.4%

 

 

 

 

 

 

 

County of Jasper Indiana, Refunding RB,
Northern Indiana Public Service Co.,
Series C (NPFGC), 5.85%, 4/01/19

 

 

2,000

 

 

2,156,320

 

Iowa — 0.6%

 

 

 

 

 

 

 

Iowa Higher Education Loan Authority,
Refunding RB, Private College Facility:

 

 

 

 

 

 

 

5.00%, 9/01/20

 

 

1,000

 

 

1,012,880

 

5.00%, 9/01/22

 

 

2,315

 

 

2,291,456

 

 

 

 

 

 

 

 

 

 

 

 

3,304,336

 

Kansas — 1.5%

 

 

 

 

 

 

 

City of Dodge City Kansas, RB (AGC),
4.00%, 6/01/24

 

 

2,245

 

 

2,130,662

 

Kansas Development Finance Authority,
Refunding RB:

 

 

 

 

 

 

 

Adventist Health, 5.00%, 11/15/23

 

 

1,500

 

 

1,557,165

 

Adventist/Sunbelt, Series D, 5.00%,
11/15/24

 

 

1,000

 

 

1,024,200

 

Sisters of Leavenworth, Series A,
4.00%, 1/01/22

 

 

3,425

 

 

3,241,626

 

 

 

 

 

 

 

 

 

 

 

 

7,953,653

 

Kentucky — 3.1%

 

 

 

 

 

 

 

Kentucky Economic Development
Finance Authority, Refunding RB,
Owensboro Medical Health System,
Series A, 5.25%, 6/01/23

 

 

8,650

 

 

8,103,839

 

Kentucky State Property & Buildings
Commission, Refunding RB, Project
No. 93 (AGC), 5.25%, 2/01/24

 

 

8,000

 

 

8,339,360

 

 

 

 

 

 

 

 

 

 

 

 

16,443,199

 

Louisiana — 3.0%

 

 

 

 

 

 

 

Louisiana Public Facilities Authority, RB
(NPFGC):

 

 

 

 

 

 

 

Nineteenth Judicial District Court,
5.50%, 6/01/41

 

 

2,000

 

 

1,956,520

 

University of New Orleans Research
& Technology, 5.25%, 3/01/26

 

 

5,000

 

 

4,984,300

 

Louisiana Public Facilities Authority,
Refunding RB, Entergy Gulf States
Louisiana, LLC Project, Series A,
5.00%, 9/01/28

 

 

5,000

 

 

4,562,450

 

New Orleans Aviation Board Louisiana,
Refunding GARB, Restructuring,
Series A-2 (AGC), 6.00%, 1/01/23

 

 

850

 

 

921,723

 

Port of New Orleans Louisiana,
Refunding RB, Continental Grain Co.
Project, 6.50%, 1/01/17

 

 

3,500

 

 

3,372,775

 

 

 

 

 

 

 

 

 

 

 

 

15,797,768

 

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Maine — 0.3%

 

 

 

 

 

 

 

Portland New Public Housing Authority
Maine, Refunding RB, Senior Living,
Series A, 6.00%, 2/01/34

 

$

1,965

 

$

1,783,473

 

Maryland — 0.5%

 

 

 

 

 

 

 

Maryland EDC, RB, Transportation
Facilities Project, Series A, 5.13%,
6/01/20

 

 

1,750

 

 

1,722,490

 

Maryland EDC, Refunding RB, CNX
Marine Terminals, Inc., 5.75%,
9/01/25

 

 

790

 

 

735,364

 

Maryland Industrial Development
Financing Authority, RB, Our Lady of
Good Counsel School, Series A,
6.00%, 5/01/35

 

 

500

 

 

460,505

 

 

 

 

 

 

 

 

 

 

 

 

2,918,359

 

Massachusetts — 0.8%

 

 

 

 

 

 

 

Massachusetts Development Finance
Agency, RB, Ogden Haverhill Project,
Series B, AMT:

 

 

 

 

 

 

 

5.35%, 12/01/15

 

 

1,210

 

 

1,210,254

 

5.50%, 12/01/19

 

 

2,000

 

 

2,000,460

 

Massachusetts Health & Educational
Facilities Authority, RB, Winchester
Hospital, 5.00%, 7/01/25

 

 

1,060

 

 

976,886

 

 

 

 

 

 

 

 

 

 

 

 

4,187,600

 

Michigan — 4.4%

 

 

 

 

 

 

 

City of Detroit Michigan, Refunding RB,
Second Lien, Series C (BHAC), 5.75%,
7/01/26

 

 

4,235

 

 

4,376,619

 

Kalamazoo Hospital Finance Authority,
Refunding RB, Bronson Methodist
Hospital, 4.25%, 5/15/25

 

 

2,120

 

 

1,849,064

 

Michigan State Hospital Finance
Authority, Refunding RB:

 

 

 

 

 

 

 

Hospital, Henry Ford Health, 5.25%,
11/15/24

 

 

4,900

 

 

4,759,223

 

Hospital, Oakwood Obligation
Group, Series A, 6.00%, 4/01/22

 

 

4,795

 

 

4,853,163

 

Wayne County Airport Authority, RB,
Detroit Metropolitan Wayne County
Airport, AMT (AGC), 4.75%, 12/01/18

 

 

7,665

 

 

7,650,130

 

 

 

 

 

 

 

 

 

 

 

 

23,488,199

 

Minnesota — 1.5%

 

 

 

 

 

 

 

City of St. Cloud Minnesota, RB,
CentraCare Health System, Series A,
4.25%, 5/01/21

 

 

2,300

 

 

2,238,314

 

Minneapolis & St. Paul Housing &
Redevelopment Authority, RB,
HealthPartners Obligation Group
Project:

 

 

 

 

 

 

 

6.00%, 12/01/19

 

 

1,000

 

 

1,028,690

 

6.00%, 12/01/21

 

 

2,545

 

 

2,594,424

 

Minnesota State Municipal Power
Agency, RB, Series A, 5.25%,
10/01/24

 

 

2,000

 

 

2,042,940

 

 

 

 

 

 

 

 

 

 

 

 

7,904,368

 

 

 

 

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011

3


 

 

 

 

Schedule of Investments (continued)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)
(Percentages shown are based on Net Assets)


 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Mississippi — 1.7%

 

 

 

 

 

 

 

Mississippi Business Finance Corp.,
Refunding RB, System Energy
Resource Inc. Project:

 

 

 

 

 

 

 

5.88%, 4/01/22

 

$

5,000

 

$

4,864,450

 

5.90%, 5/01/22

 

 

4,410

 

 

4,296,531

 

 

 

 

 

 

 

 

 

 

 

 

9,160,981

 

Missouri — 1.4%

 

 

 

 

 

 

 

Missouri State Health & Educational
Facilities Authority, RB, SSM Health
Care, Series B, 4.25%, 6/01/25

 

 

8,125

 

 

7,389,687

 

Montana — 0.5%

 

 

 

 

 

 

 

Montana Facility Finance Authority,
Refunding RB, Series B, 5.00%,
1/01/24

 

 

2,625

 

 

2,704,879

 

Nebraska — 1.5%

 

 

 

 

 

 

 

Douglas County Hospital Authority No. 2,
RB, Health Facilities, Immanuel
Obligation Group, 5.50%, 1/01/30

 

 

500

 

 

475,720

 

Douglas County School District No. 17
Nebraska, GO, Refunding:

 

 

 

 

 

 

 

2.00%, 6/15/24

 

 

4,390

 

 

3,305,758

 

2.00%, 6/15/25

 

 

4,480

 

 

3,253,600

 

Lancaster County Hospital Authority
No. 1, RB, Immanuel Obligation
Group, 5.50%, 1/01/30

 

 

1,000

 

 

948,170

 

 

 

 

 

 

 

 

 

 

 

 

7,983,248

 

Nevada — 1.1%

 

 

 

 

 

 

 

County of Clark Nevada, Special
Assessment Bonds, Special
Improvement District No. 142, Local
Improvement, 6.38%, 8/01/23

 

 

2,110

 

 

1,900,625

 

County of Humboldt Nevada, Refunding
RB, Idaho Power Co. Project, 5.15%,
12/01/24

 

 

3,800

 

 

3,788,562

 

 

 

 

 

 

 

 

 

 

 

 

5,689,187

 

New Jersey — 12.0%

 

 

 

 

 

 

 

Essex County Improvement Authority,
RB, Newark Project, Series A (AGM),
5.00%, 11/01/20

 

 

2,000

 

 

1,954,020

 

Garden State Preservation Trust, RB,
Election of 2005, Series A (AGM):

 

 

 

 

 

 

 

5.80%, 11/01/21

 

 

3,635

 

 

4,107,841

 

5.80%, 11/01/23

 

 

5,050

 

 

5,660,393

 

New Jersey EDA, RB:

 

 

 

 

 

 

 

Cigarette Tax, 5.75%, 6/15/29

 

 

9,810

 

 

8,794,469

 

Continental Airlines Inc. Project,
AMT, 6.63%, 9/15/12

 

 

5,540

 

 

5,571,910

 

Motor Vehicle Surcharge, Series A
(NPFGC), 5.25%, 7/01/33

 

 

17,900

 

 

17,598,206

 

New Jersey EDA, Refunding RB:

 

 

 

 

 

 

 

New Jersey American Water Co.,
Series E, AMT, 4.70%, 12/01/25

 

 

3,250

 

 

2,998,970

 

School Facilities Construction,
Series AA, 4.25%, 12/15/24

 

 

3,850

 

 

3,618,885

 

New Jersey Health Care Facilities
Financing Authority, Refunding RB,
Hackensack University Medical,
Series B (AGM), 4.00%, 1/01/24

 

 

635

 

 

574,186

 

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

 

New Jersey (concluded)

 

 

 

 

 

 

 

New Jersey Higher Education Assistance
Authority, Refunding RB, Series 1A,
4.75%, 12/01/21

 

$

2,400

 

$

2,362,152

 

New Jersey State Housing & Mortgage
Finance Agency, RB, S/F Housing,
Series X, AMT, 5.10%, 10/01/23

 

 

4,500

 

 

4,433,715

 

New Jersey Transportation Trust Fund
Authority, RB, CAB, Transportation
System, Series C (AMBAC), 5.71%,
12/15/25 (f)

 

 

9,450

 

 

3,817,233

 

South Jersey Port Corp., RB, Marine
Terminal, Series O-1 (AGC), 4.63%,
1/01/23

 

 

1,375

 

 

1,389,946

 

University of Medicine & Dentistry of
New Jersey, RB, Series A (AMBAC),
5.50%, 12/01/23

 

 

1,000

 

 

1,007,010

 

 

 

 

 

 

 

 

 

 

 

 

 

63,888,936

 

 

New Mexico — 2.0%

 

 

 

 

 

 

 

New Mexico Finance Authority, RB,
Senior Lien, Series A (NPFGC), 5.13%,
6/15/14 (c)

 

 

9,520

 

 

10,759,599

 

 

New York — 25.5%

 

 

 

 

 

 

 

City of New York New York, GO:

 

 

 

 

 

 

 

Series D1, 5.13%, 12/01/26

 

 

4,615

 

 

4,701,208

 

Sub-Series I-1, 5.50%, 4/01/21

 

 

5,000

 

 

5,509,800

 

Dutchess County Industrial
Development Agency New York, RB,
St. Francis Hospital, Series B, 7.25%,
3/01/19

 

 

895

 

 

872,312

 

Essex County Industrial Development
Agency, Refunding RB, International
Paper, Series A, AMT, 5.20%,
12/01/23

 

 

6,300

 

 

5,937,813

 

Long Island Power Authority, Refunding
RB, Series A, 5.50%, 4/01/24

 

 

1,475

 

 

1,532,363

 

Metropolitan Transportation Authority,
RB, Transportation, Series A, 5.00%,
11/15/25

 

 

1,980

 

 

1,959,467

 

Metropolitan Transportation Authority,
Refunding RB, Series B, 5.25%,
11/15/25

 

 

4,000

 

 

4,130,440

 

New York City Industrial Development
Agency, RB:

 

 

 

 

 

 

 

Continental Airlines Inc. Project,
Mandatory Put Bonds, AMT, 8.38%,
11/01/16

 

 

3,500

 

 

3,569,720

 

Special Needs Facilities Pooled
Program, Series C-1, 6.80%,
7/01/19

 

 

1,895

 

 

1,825,453

 

New York City Industrial Development
Agency, Refunding RB, New York
Stock Exchange Project, Series A,
4.25%, 5/01/24

 

 

1,740

 

 

1,672,123

 

New York City Transitional Finance
Authority, RB:

 

 

 

 

 

 

 

Fiscal 2007, Series S-1 (NPFGC),
5.00%, 7/15/24

 

 

500

 

 

512,240

 

Fiscal 2009, Series S-3, 5.00%,
1/15/23

 

 

3,560

 

 

3,701,759

 

 

 

 

4

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011


 

 

 

 

Schedule of Investments (continued)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)
(Percentages shown are based on Net Assets)


 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

New York (continued)

 

 

 

 

 

 

 

New York Liberty Development Corp.,
Refunding RB, Second Priority, Bank
of America Tower at One Bryant Park
Project, 5.63%, 7/15/47

 

$

3,000

 

$

2,808,990

 

New York State Dormitory Authority,
LRB, Municipal Health Facilities,
Sub-Series 2-4, 5.00%, 1/15/27

 

 

6,900

 

 

6,729,501

 

New York State Dormitory Authority, RB:

 

 

 

 

 

 

 

Interagency Council Pooled,
Series A-1, 4.25%, 7/01/25

 

 

405

 

 

371,308

 

Mental Health Services Facilities
Improvement, Series A (AGM),
5.00%, 2/15/22

 

 

4,000

 

 

4,163,680

 

Mount Sinai School of Medicine,
Series A (NPFGC), 5.15%, 7/01/24

 

 

1,000

 

 

979,200

 

North Shore-Long Island Jewish
Health System, Series A, 5.50%,
5/01/30

 

 

1,495

 

 

1,453,379

 

NYU Hospital Center, Series A,
5.00%, 7/01/22

 

 

1,725

 

 

1,681,013

 

NYU Hospital Center, Series A,
5.13%, 7/01/23

 

 

1,670

 

 

1,617,028

 

The New School, 5.25%, 7/01/24

 

 

2,400

 

 

2,408,736

 

The New School, 5.25%, 7/01/25

 

 

2,100

 

 

2,081,058

 

University of Rochester, Series C,
4.00%, 7/01/24

 

 

625

 

 

600,769

 

New York State Dormitory Authority,
Refunding RB:

 

 

 

 

 

 

 

Mount Sinai Hospital, Series A,
4.25%, 7/01/23

 

 

2,225

 

 

2,069,984

 

North Shore-Long Island Jewish
Health System, Series E, 5.00%,
5/01/22

 

 

650

 

 

651,385

 

North Shore-Long Island Jewish
Health System, Series E, 5.00%,
5/01/23

 

 

2,160

 

 

2,142,266

 

Yeshiva University, 4.00%, 9/01/23

 

 

2,860

 

 

2,773,685

 

Yeshiva University, 4.25%, 9/01/24

 

 

2,750

 

 

2,691,535

 

New York State Environmental Facilities
Corp., RB, Environment, Series A
(FGIC), 5.25%, 12/15/14 (c)

 

 

7,380

 

 

8,514,454

 

New York State Urban Development
Corp., Refunding RB, Service Contract,
Series B, 5.00%, 1/01/21

 

 

8,000

 

 

8,461,440

 

Port Authority of New York & New
Jersey, RB, JFK International Air
Terminal, 5.00%, 12/01/20

 

 

2,475

 

 

2,391,617

 

Port Authority of New York & New
Jersey, Refunding RB Consolidated:

 

 

 

 

 

 

 

152nd Series, AMT, 5.00%,
11/01/23

 

 

2,500

 

 

2,460,925

 

153rd Series, 5.00%, 7/15/24

 

 

2,010

 

 

2,087,063

 

Sales Tax Asset Receivable Corp., RB,
Series A (NPFGC), 5.00%, 10/15/20

 

 

9,070

 

 

9,649,664

 

Tobacco Settlement Financing Corp.
New York, RB, Asset-Backed:

 

 

 

 

 

 

 

Series A-1 (AMBAC), 5.25%,
6/01/22

 

 

6,510

 

 

6,700,157

 

Series B-1C, 5.50%, 6/01/21

 

 

7,000

 

 

7,364,140

 

Series B-1C, 5.50%, 6/01/22

 

 

10,000

 

 

10,516,300

 

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

New York (concluded)

 

 

 

 

 

 

 

Trust for Cultural Resources, RB,
Carnegie Hall, Series A, 5.00%,
12/01/29

 

$

3,750

 

$

3,713,625

 

United Nations Development Corp. New
York, Refunding RB, Series A, 4.25%,
7/01/24

 

 

2,985

 

 

2,790,169

 

 

 

 

 

 

 

 

 

 

 

 

135,797,769

 

North Carolina — 0.8%

 

 

 

 

 

 

 

Gaston County Industrial Facilities &
Pollution Control Financing Authority
North Carolina, RB, Exempt Facilities,
National Gypsum Co. Project, AMT,
5.75%, 8/01/35

 

 

3,105

 

 

2,313,567

 

North Carolina Eastern Municipal Power
Agency, Refunding RB, Series B,
5.00%, 1/01/26

 

 

1,925

 

 

1,841,031

 

 

 

 

 

 

 

 

 

 

 

 

4,154,598

 

Northern Mariana Islands — 0.9%

 

 

 

 

 

 

 

Commonwealth of the Northern Mariana
Islands, GO, Series A:

 

 

 

 

 

 

 

6.75%, 10/01/13 (c)

 

 

3,800

 

 

4,382,198

 

6.75%, 10/01/33

 

 

250

 

 

228,715

 

 

 

 

 

 

 

 

 

 

 

 

4,610,913

 

Pennsylvania — 8.2%

 

 

 

 

 

 

 

City of Philadelphia Pennsylvania, RB,
Series A, AMT (AGM), 5.00%, 6/15/20

 

 

2,895

 

 

2,919,666

 

City of Philadelphia Pennsylvania,
Refunding RB, Series B, AMT (AGM),
5.00%, 6/15/19

 

 

3,905

 

 

3,993,448

 

City of Pittsburgh Pennsylvania, GO,
Refunding, Series B (AGM), 5.25%,
9/01/17

 

 

9,630

 

 

10,309,204

 

City of Pittsburgh Pennsylvania, GO,
Series C (AGM), 5.25%, 9/01/18

 

 

6,430

 

 

6,785,579

 

Montgomery County IDA Pennsylvania,
MRB, Whitemarsh Continuing Care,
6.00%, 2/01/21

 

 

3,500

 

 

3,204,215

 

Montgomery County IDA Pennsylvania,
RB, New Regional Medical Center
Project (FHA), 5.00%, 8/01/24

 

 

3,500

 

 

3,571,645

 

Pennsylvania Economic Development
Financing Authority, RB, National
Gypsum Co., Series A, AMT, 6.25%,
11/01/27

 

 

7,710

 

 

6,298,145

 

South Fork Municipal Authority, RB,
Conemaugh Valley Memorial, Series A
(AGC), 6.00%, 7/01/26

 

 

6,225

 

 

6,409,571

 

 

 

 

 

 

 

 

 

 

 

 

43,491,473

 

Puerto Rico — 11.6%

 

 

 

 

 

 

 

Commonwealth of Puerto Rico, GO,
Refunding, Public Improvement,
Series A (NPFGC), 5.50%, 7/01/21

 

 

3,290

 

 

3,309,279

 

Puerto Rico Aqueduct & Sewer
Authority, RB, Senior Lien, Series A
(AGC), 5.00%, 7/01/25

 

 

3,215

 

 

3,182,336

 

 

 

 

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011

5


 

 

 

 

Schedule of Investments (continued)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)
 (Percentages shown are based on Net Assets)

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Puerto Rico (concluded)

 

 

 

 

 

 

 

Puerto Rico Electric Power Authority, RB:

 

 

 

 

 

 

 

Series CCC, 4.25%, 7/01/23

 

$

2,360

 

$

2,141,582

 

Series TT, 5.00%, 7/01/27

 

 

8,500

 

 

7,956,680

 

Series WW, 5.50%, 7/01/38

 

 

3,000

 

 

2,776,560

 

Puerto Rico Highway & Transportation
Authority, RB:

 

 

 

 

 

 

 

Series Y (AGM), 6.25%, 7/01/21

 

 

3,000

 

 

3,227,520

 

Subordinate (FGIC), 5.75%,
7/01/21

 

 

4,375

 

 

4,401,644

 

Puerto Rico Highway & Transportation
Authority, Refunding RB, Series AA-1
(AGM), 4.95%, 7/01/26

 

 

1,500

 

 

1,454,310

 

Puerto Rico Housing Finance Authority,
Refunding RB, Subordinate, Capital
Fund Modernization, 5.13%,
12/01/27

 

 

12,900

 

 

12,820,020

 

Puerto Rico Industrial Medical &
Environmental Pollution Control
Facilities Financing Authority, RB,
Special Facilities, American Airlines,
Series A, 6.45%, 12/01/25

 

 

5,390

 

 

4,671,136

 

Puerto Rico Public Buildings Authority,
RB, Government Facilities, Series I,
5.50%, 7/01/14 (c)

 

 

8,000

 

 

9,073,280

 

Puerto Rico Public Buildings Authority,
Refunding RB, Government Facilities:

 

 

 

 

 

 

 

Series D, 5.25%, 7/01/27

 

 

3,280

 

 

3,038,067

 

Series M-3 (NPFGC), 6.00%,
7/01/28

 

 

1,900

 

 

1,907,771

 

Puerto Rico Sales Tax Financing Corp.,
RB, First Sub-Series A, 5.75%,
8/01/37

 

 

2,000

 

 

1,946,980

 

 

 

 

 

 

 

 

 

 

 

 

61,907,165

 

Rhode Island — 0.5%

 

 

 

 

 

 

 

Rhode Island Health & Educational
Building Corp., RB, University of
Rhode Island, Series A (AGC), 4.75%,
9/15/24

 

 

2,500

 

 

2,493,900

 

South Carolina — 0.2%

 

 

 

 

 

 

 

County of Florence South Carolina, RB,
McLeod Regional Medical Center,
Series A, 4.50%, 11/01/25

 

 

1,000

 

 

909,490

 

South Dakota — 0.4%

 

 

 

 

 

 

 

Educational Enhancement Funding
Corp., RB, Series B, 6.50%, 6/01/32

 

 

2,200

 

 

2,114,046

 

Tennessee — 2.1%

 

 

 

 

 

 

 

Chattanooga-Hamilton County Hospital
Authority Tennessee, Refunding RB,
Erlanger Health (AGM), 5.00%,
10/01/22

 

 

1,620

 

 

1,632,134

 

Johnson City Health & Educational
Facilities Board, RB, Appalachian
Christian Village Project, Series A,
6.00%, 2/15/19

 

 

1,515

 

 

1,446,234

 

Memphis-Shelby County Sports Authority
Inc., Refunding RB, Memphis Arena
Project:

 

 

 

 

 

 

 

Series A, 5.00%, 11/01/23

 

 

2,695

 

 

2,707,505

 

Series B, 5.00%, 11/01/22

 

 

1,000

 

 

1,014,790

 

 

 

 

 

 

 

 

 

Municipal Bonds

 

Par
(000)

 

Value

 

Tennessee (concluded)

 

 

 

 

 

 

 

Shelby County Health Educational &
Housing Facilities Board, RB,
Germantown Village, Series A:

 

 

 

 

 

 

 

6.75%, 12/01/18

 

$

3,550

 

$

3,271,609

 

7.00%, 12/01/23

 

 

1,450

 

 

1,289,050

 

 

 

 

 

 

 

 

 

 

 

 

11,361,322

 

Texas — 2.5%

 

 

 

 

 

 

 

Dallas-Fort Worth International Airport
Facilities Improvement Corp., RB,
Series 2001-A-1, AMT, 6.15%, 1/01/16

 

 

4,000

 

 

3,938,320

 

Dallas-Fort Worth International Airport
Facilities Improvement Corp.,
Refunding RB, Series A, Sub-Series 2,
Mandatory Put Bonds, AMT, 9.00%,
5/01/29 (b)

 

 

3,000

 

 

3,068,970

 

Gulf Coast IDA, RB, Citgo Petroleum
Corp. Project, Mandatory Put Bonds,
AMT, 7.50%, 5/01/25 (b)

 

 

2,440

 

 

2,451,712

 

Gulf Coast Waste Disposal Authority,
Refunding RB, Series A, AMT, 6.10%,
8/01/24

 

 

2,000

 

 

2,000,000

 

Houston Health Facilities Development
Corp., RB, Buckingham Senior Living
Community, Series A, 7.00%,
2/15/14 (c)

 

 

1,500

 

 

1,760,715

 

 

 

 

 

 

 

 

 

 

 

 

13,219,717

 

U.S. Virgin Islands — 1.6%

 

 

 

 

 

 

 

United States Virgin Islands, Refunding
RB, Senior Secured, Hovensa Coker
Project, AMT, 6.50%, 7/01/21

 

 

1,860

 

 

1,846,422

 

Virgin Islands Public Finance Authority,
RB, Senior Secured, Hovensa
Refinery, AMT, 6.13%, 7/01/22

 

 

6,750

 

 

6,458,737

 

 

 

 

 

 

 

 

 

 

 

 

8,305,159

 

Virginia — 3.3%

 

 

 

 

 

 

 

James City County EDA, Refunding RB,
First Mortgage, Williamsburg Lodge,
Series A:

 

 

 

 

 

 

 

5.75%, 3/01/17

 

 

3,285

 

 

3,222,191

 

6.00%, 3/01/23

 

 

1,150

 

 

1,084,864

 

Roanoke Economic Development
Authority, Refunding RB, Carilion
Health System, Series B (AGM),
5.00%, 7/01/38

 

 

4,705

 

 

4,323,895

 

Tobacco Settlement Financing Corp.
Virginia, RB, Asset-Backed, 5.63%,
6/01/15 (c)

 

 

7,800

 

 

8,988,876

 

 

 

 

 

 

 

 

 

 

 

 

17,619,826

 

West Virginia — 0.7%

 

 

 

 

 

 

 

West Virginia Hospital Finance Authority,
Refunding RB, Charleston, Series A,
5.13%, 9/01/23

 

 

4,000

 

 

3,879,000

 

Wisconsin — 0.4%

 

 

 

 

 

 

 

Wisconsin Housing & EDA, RB, Series C,
AMT, 4.85%, 9/01/26

 

 

2,000

 

 

1,907,900

 

Total Municipal Bonds – 141.5%

 

 

 

 

 

753,358,251

 

 

 

 

 

 

 

 

 

 

 

 

6

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011


 

 

 

Schedule of Investments (continued)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

(Percentages shown are based on Net Assets)


 

 

 

 

 

 

 

 

Municipal Bonds Transferred to Tender
Option Bond Trusts (g)

 

Par
(000)

 

Value

 

California — 5.0%

 

 

 

 

 

 

 

City of San Jose California, GO, Libraries,
Parks, and Public Safety Project
(NPFGC), 5.00%, 9/01/30

 

$

3,101

 

$

3,102,567

 

Peralta Community College District, GO,
Election of 2000, Series D (AGM),
5.00%, 8/01/30

 

 

10,140

 

 

9,905,462

 

Sequoia Union High School District
California, GO, Refunding, Election of
2004, Series B (AGM), 5.50%,
7/01/35

 

 

9,028

 

 

8,932,118

 

Tamalpais Union High School District
California, GO, Election of 2001
(AGM), 5.00%, 8/01/28

 

 

4,875

 

 

4,755,855

 

 

 

 

 

 

 

 

 

 

 

 

26,696,002

 

Illinois — 2.4%

 

 

 

 

 

 

 

McHenry County Conservation District
Illinois, GO (AGM), 5.13%, 2/01/27

 

 

12,695

 

 

12,776,436

 

Massachusetts — 1.6%

 

 

 

 

 

 

 

Massachusetts School Building
Authority, RB, Series A (AGM), 5.00%,
8/15/30

 

 

8,338

 

 

8,344,823

 

Minnesota — 1.8%

 

 

 

 

 

 

 

State of Minnesota, GO, State Various
Purpose, Series A, 4.00%, 8/01/29

 

 

10,525

 

 

9,706,975

 

New Jersey — 2.2%

 

 

 

 

 

 

 

New Jersey Transportation Trust Fund
Authority, RB, Transportation System,
Series D (AGM), 5.00%, 6/15/19

 

 

11,120

 

 

11,523,100

 

New York — 7.2%

 

 

 

 

 

 

 

City of New York New York, GO,
Sub-Series B-1, 5.25%, 9/01/22

 

 

8,250

 

 

8,790,788

 

New York City Municipal Water Finance
Authority, Refunding RB, Series A,
4.75%, 6/15/30

 

 

8,000

 

 

7,763,840

 

New York State Urban Development
Corp., RB, State Personal Income Tax,
State Facilities, Series A-1 (NPFGC),
5.25%, 3/15/34

 

 

10,000

 

 

10,027,900

 

Sales Tax Asset Receivable Corp., RB,
Series A (AMBAC), 5.25%, 10/15/27

 

 

11,101

 

 

11,526,917

 

 

 

 

 

 

 

 

 

 

 

 

38,109,445

 

Washington — 2.0%

 

 

 

 

 

 

 

Snohomish County School District No.
15-Edmonds Washington, GO
(NPFGC), 5.00%, 12/01/19

 

 

10,000

 

 

10,783,800

 

Total Municipal Bonds Transferred to
Tender Option Bond Trusts – 22.2%

 

 

 

 

 

117,940,581

 

Total Long-Term Investments
(Cost – $883,189,552) – 163.7%

 

 

 

 

 

871,298,832

 

 

 

Short-Term Securities

 

Shares

 

Value

 

FFI Institutional Tax-Exempt Fund,
0.15% (h)(i)

 

 

14,077,944

 

$

14,077,944

 

Total Short-Term Securities
(Cost – $14,077,944) – 2.6%

 

 

 

 

 

14,077,944

 

Total Investments
(Cost – $897,267,496*) – 166.3%

 

 

 

 

 

885,376,776

 

Other Assets Less Liabilities – 0.2%

 

 

 

 

 

931,433

 

Liability for Trust Certificates, Including Interest
Expense and Fees Payable – (12.5)%

 

 

 

 

 

(66,676,000

)

Preferred Shares, at Redemption Value – (54.0)%

 

 

 

 

 

(287,245,867

)

 

 

 

 

 

Net Assets Applicable to Common Shares – 100.0%

 

 

 

 

$

532,386,342

 

 

 

 

 

 

 

 

*

The cost and unrealized appreciation (depreciation) of investments as of January 31, 2011, as computed for federal income tax purposes, were as follows:


 

 

 

 

 

 

 

 

 

 

Aggregate cost

 

 

 

 

$

830,859,017

 

 

 

 

 

 

 

 

Gross unrealized appreciation

 

 

 

 

$

15,923,212

 

 

Gross unrealized depreciation

 

 

 

 

 

(28,014,265

)

 

 

 

 

 

 

 

Net unrealized depreciation

 

 

 

 

$

(12,091,053

)

 

 

 

 

 

 

 

 

(a)

When-issued security. Unsettled when-issued transactions were as follows:


 

 

 

 

 

 

 

 

 

 

 

Counterparty

 

Value

 

Unrealized
Depreciation

 

 

Morgan Stanley Co. Inc.

 

$

2,112,476

 

$

(406

)

 

 

 

(b)

Variable rate security. Rate shown is as of report date.

 

 

(c)

US government securities, held in escrow, are used to pay interest on this security as well as to retire the bond in full at the date indicated, typically at a premium to par.

 

 

(d)

Non-income producing security.

 

 

(e)

Issuer filed for bankruptcy and/or is in default of interest payments.

 

 

(f)

Represents a zero-coupon bond. Rate shown reflects the current yield as of report date.

 

 

(g)

Securities represent bonds transferred to a tender option bond trust in exchange for which the Fund acquired residual interest certificates. These securities serve as collateral in a financing transaction.

 

 

(h)

Investments in companies considered to be an affiliate of the Fund during the period, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Affiliate

 

Shares
at
April 30,
2010

 

Net
Activity

 

Shares
at
January 31,
2011

 

Income

 

 

 

FFI Institutional Tax-Exempt Fund

 

 

17,541,876

 

 

(3,463,932

)

 

14,077,944

 

$

11,148

 

 

 

 

(i)

Represents the current yield as of report date.


 

 

 

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011

7


 

 

 

Schedule of Investments (concluded)

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)


 

 

 

•

Fair Value Measurements - Various inputs are used in determining the fair value of investments, which are as follows:

 

 

 

•

Level 1 — price quotations in active markets/exchanges for identical assets and liabilities

 

 

 

 

•

Level 2 — other observable inputs (including, but not limited to: quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market-corroborated inputs)

 

 

 

 

•

Level 3 — unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the Fund’s own assumptions used in determining the fair value of investments)

 

 

 

The inputs or methodologies used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. For information about the Fund’s policy regarding valuation of investments and other significant accounting policies, please refer to the Fund’s most recent financial statements as contained in its semi-annual report.

 

The following table summarizes the inputs used as of January 31, 2011 in determining the fair valuation of the Fund’s investments:


 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valuation Inputs

 

Level 1

 

Level 2

 

Level 3

 

Total

 

Assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

Investments in Securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

Long-Term Investments1

 

 

—

 

$

871,298,832

 

 

—

 

$

871,298,832

 

Short-Term Securities

 

$

14,077,944

 

 

—

 

 

—

 

 

14,077,944

 

Total

 

$

14,077,944

 

$

871,298,832

 

 

—

 

$

885,376,776

 

 

 

 

 

1

See above Schedule of Investments for values in each state or political subdivision.


 

 

 

8

BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

JANUARY 31, 2011

Item 2 –

Controls and Procedures

 

 

2(a) –

The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the ″1940 Act″)) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended.

 

 

2(b) –

There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.

 

 

Item 3 –

Exhibits

 

 

 

Certifications – Attached hereto

 

 

 

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

 

 

BlackRock Muni Intermediate Duration Fund, Inc.
   
  By: /s/ John M. Perlowski  
    John M. Perlowski
    Chief Executive Officer (principal executive officer) of
    BlackRock Muni Intermediate Duration Fund, Inc.
   
  Date: March 25, 2011
   
  Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
   
  By: /s/ John M. Perlowski  
    John M. Perlowski
    Chief Executive Officer (principal executive officer) of
    BlackRock Muni Intermediate Duration Fund, Inc.
   
  Date: March 25, 2011
   
  By: /s/ Neal J. Andrews  
    Neal J. Andrews
    Chief Financial Officer (principal financial officer) of
    BlackRock Muni Intermediate Duration Fund, Inc.
     
  Date: March 25, 2011