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.
Fund Address: P.O. Box 9011
Princeton, NJ 08543-9011
Name and address of agent for service: Robert C. Doll, Jr., Chief Executive
Officer, BlackRock Muni Intermediate Duration Fund, Inc., 800 Scudders
Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011,
Princeton, NJ, 08543-9011
Registrant's telephone number, including area code: (609) 282-2800
Date of fiscal year end: 05/31/2007
Date of reporting period: 12/01/06 - 02/28/07
Item 1 - Schedule of Investments
BlackRock Muni Intermediate Duration Fund, Inc.
Schedule of Investments as of February 28, 2007 (in Thousands)
Face
State Amount Municipal Bonds Value
Alabama - 3.4% $ 5,500 Jefferson County, Alabama, Limited Obligation School Warrants, Series A,
5.50% due 1/01/2021 $ 6,024
6,500 Jefferson County, Alabama, Limited Obligation School Warrants, Series A,
5.25% due 1/01/2023 6,986
6,600 Tuscaloosa, Alabama, Special Care Facilities Financing Authority, Residential
Care Facility Revenue Bonds (Capstone Village, Inc. Project), Series A, 5.625%
due 8/01/2025 6,677
Arizona - 2.6% 2,560 Coconino County, Arizona, Pollution Control Corporation Revenue Bonds (Arizona
Public Service Co.-Navajo Project), VRDN, AMT, Series A, 3.70% due 10/01/2029 (h) 2,560
2,820 Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools
Project 1), Series A, 6.625% due 7/01/2020 2,881
3,000 Navajo County, Arizona, IDA, IDR (Stone Container Corporation Project), AMT,
7.20% due 6/01/2027 3,075
995 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools
Project), Series C, 6.70% due 7/01/2021 1,073
1,750 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools
Project), Series K/L, 6.375% due 7/01/2031 1,898
3,630 Vistancia Community Facilities District, Arizona, GO, 5% due 7/15/2014 3,864
Arkansas - 0.7% 3,755 Conway, Arkansas, Public Facilities Board, Capital Improvement Revenue Refunding
Bonds (Hendrix College Projects), Series B, 5% due 10/01/2026 3,899
California - 21.9% 5,000 California State Department of Water Resources, Power Supply Revenue Bonds,
Series A, 5.375% due 5/01/2012 (g) 5,467
14,795 California State, GO, 5.50% due 4/01/2014 (g) 16,545
795 California State, GO, 5.50% due 4/01/2028 875
5,000 California State, GO, Refunding, 5.25% due 2/01/2027 (f) 5,338
10,000 California State Public Works Board, Lease Revenue Bonds (Department of
Corrections), Series C, 5.50% due 6/01/2020 11,042
2,500 California Statewide Communities Development Authority, Health Facility Revenue
Bonds (Memorial Health Services), Series A, 6% due 10/01/2023 2,782
2,400 Elk Grove, California, Poppy Ridge Community Facilities Number 3 Special Tax,
Series 1, 6% due 9/01/2008 (g) 2,496
35,265 Los Angeles, California, Unified School District, GO, Series A, 5% due
7/01/2013 (f)(g) 38,144
10,135 Peralta, California, Community College District, GO (Election of 2000), Series D,
5% due 8/01/2030 (e) 10,843
1,515 Rowland, California, Unified School District, GO (Election of 2000), Series B,
5.25% due 8/01/2027 (e) 1,630
Portfolio Abbreviations
To simplify the listings of BlackRock Muni Intermediate Duration Fund, Inc.'s
portfolio holdings in the Schedule of Investments, we have abbreviated the
names of many of the securities according to the list below.
AMT Alternative Minimum Tax (subject to)
COP Certificates of Participation
EDA Economic Development Authority
EDR Economic Development Revenue Bonds
GO General Obligation Bonds
IDA Industrial Development Authority
IDB Industrial Development Board
IDR Industrial Development Revenue Bonds
PCR Pollution Control Revenue Bonds
S/F Single-Family
VRDN Variable Rate Demand Notes
BlackRock Muni Intermediate Duration Fund, Inc.
Schedule of Investments as of February 28, 2007 (concluded) (in Thousands)
Face
State Amount Municipal Bonds Value
California $ 585 Sacramento, California, Special Tax (North Natomas Community Facilities),
(concluded) Series 4-C, 5.60% due 9/01/2020 $ 623
1,720 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 5.75% due 9/01/2022 1,843
500 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 5.90% due 9/01/2023 539
3,000 Sacramento, California, Special Tax (North Natomas Community Facilities),
Series 4-C, 6% due 9/01/2028 3,238
2,295 San Francisco, California, City and County, GO (Branch Library Facilities
Improvements), Series G, 5% due 6/15/2023 (f) 2,452
3,000 San Jose, California, Airport Revenue Bonds, Series A, 5.25% due 3/01/2017 (c) 3,163
3,100 San Jose, California, GO (Libraries, Parks and Public Safety Projects), 5% due
9/01/2030 (f) 3,282
9,030 Sequoia, California, Unified High School District, GO, Refunding, Series B, 5.50%
due 7/01/2035 (e) 10,204
4,875 Tamalpais, California, Union High School District, GO (Election of 2001), 5%
due 8/01/2028 (e) 5,146
2,610 Tustin, California, Unified School District, Senior Lien Special Tax Bonds
(Community Facilities District Number 97-1), Series A, 5% due 9/01/2032 (e) 2,730
Colorado - 2.5% 2,000 Denver, Colorado, City and County Airport Revenue Refunding Bonds, Series E, 5.25%
due 11/15/2023 (f) 2,038
800 Elk Valley, Colorado, Public Improvement Revenue Bonds (Public Improvement Fee),
Series A, 7.10% due 9/01/2014 857
2,250 Montrose, Colorado, Memorial Hospital, Revenue Bonds, 6.375% due 12/01/2023 2,542
7,500 Plaza Metropolitan District Number 1, Colorado, Tax Allocation Revenue Bonds
(Public Improvement Fees), 7.50% due 12/01/2015 8,333
1,000 Southlands, Colorado, Medical District, GO (Metropolitan District Number 1), 6.75%
due 12/01/2016 1,109
Connecticut - 1.9% 1,160 Connecticut State Development Authority, Airport Facility Revenue Bonds (Learjet
Inc. Project), AMT, 7.95% due 4/01/2026 1,403
8,000 Connecticut State Development Authority, PCR, Refunding (Connecticut Light and
Power Company), Series A, 5.85% due 9/01/2028 8,401
1,250 South Central Connecticut Regional Water Authority, Water System Revenue Refunding
Bonds, Fifteenth, Series A, 5.125% due 8/01/2009 (c)(g) 1,304
Florida - 5.3% 2,935 Harbor Bay, Florida, Community Development District, Capital Improvement Special
Assessment Bonds, 6.75% due 5/01/2034 3,220
1,085 Heritage Isle at Viera Community Development District, Florida, Special Assessment
Bonds, Series B, 5% due 11/01/2009 1,084
1,900 Lee County, Florida, Hospital Board of Directors, Hospital Revenue Bonds (Memorial
Health System), VRDN, Series A, 3.65% due 4/01/2025 (h) 1,900
5,500 Miami-Dade County, Florida, Aviation Revenue Refunding Bonds (Miami International
Airport), AMT, 5.75% due 10/01/2019 (c) 5,972
3,500 Midtown Miami, Florida, Community Development District, Special Assessment Revenue
Bonds, Series A, 6% due 5/01/2024 3,785
2,000 Midtown Miami, Florida, Community Development District, Special Assessment Revenue
Bonds, Series B, 6.50% due 5/01/2037 2,216
3,670 Orange County, Florida, Health Facilities Authority, Health Care Revenue Refunding
Bonds (Orlando Lutheran Towers), 5% due 7/01/2013 3,654
930 Orlando, Florida, Urban Community Development District, Capital Improvement Special
Assessment Bonds, 6% due 5/01/2020 1,001
1,085 Portofino Shores, Florida, Community Development District, Special Assessment Bonds,
Series A, 6.40% due 5/01/2034 1,170
2,390 South Lake County, Florida, Hospital District Revenue Bonds (South Lake Hospital
Inc.), 6.625% due 10/01/2023 2,710
430 Sterling Hill, Florida, Community Development District, Capital Improvement Revenue
Refunding Bonds, Series B, 5.50% due 11/01/2010 430
4,000 University of Florida Research Foundation Inc., Capital Improvement Revenue Bonds,
5.125% due 9/01/2033 (a) 4,104
Georgia - 3.1% 1,500 Atlanta, Georgia, Tax Allocation Bonds (Atlantic Station Project), 7.90% due
12/01/2024 1,667
5,395 Brunswick and Glynn County, Georgia, Development Authority, First Mortgage
Revenue Bonds (Coastal Community Retirement Corporation Project), Series A,
7.125% due 1/01/2025 5,275
2,800 Brunswick and Glynn County, Georgia, Development Authority, First Mortgage
Revenue Bonds (Coastal Community Retirement Corporation Project), Series A, 7.25%
due 1/01/2035 2,750
4,500 Fulton County, Georgia, Residential Care Facilities, Revenue Refunding Bonds
(Canterbury Court Project), Series A, 5.80% due 2/15/2018 4,576
1,245 Savannah, Georgia, EDA, First Mortgage Revenue Bonds (Marshes of Skidaway),
Series A, 6.25% due 1/01/2012 1,279
2,245 Savannah, Georgia, EDA, First Mortgage Revenue Bonds (Marshes of Skidaway),
Series A, 6.85% due 1/01/2019 2,416
Idaho - 0.8% 4,000 Boise City, Idaho, COP, AMT, 5.50% due 9/01/2025 (c) 4,192
370 Idaho Housing and Finance Association, S/F Mortgage Revenue Bonds, AMT,
Series F-2, 5.85% due 7/01/2015 (d)(k) 376
Illinois - 3.7% 2,510 Chicago, Illinois, O'Hare International Airport Revenue Bonds, Third Lien, AMT,
Series B-2, 6% due 1/01/2029 (j) 2,824
6,000 Hodgkins, Illinois, Environmental Improvement Revenue Bonds (Metro Biosolids
Management LLC Project), AMT, 5.90% due 11/01/2017 6,222
6,930 Illinois, Development Finance Authority Revenue Bonds (Community Rehabilitation
Providers Facilities), Series A, 6.625% due 7/01/2032 7,580
1,400 Illinois Health Facilities Authority, Revenue Refunding Bonds (University of
Chicago Hospitals), VRDN, 3.64% due 8/01/2026 (f)(h) 1,400
1,800 Illinois State Finance Authority Revenue Bonds (Landing At Plymouth Place Project),
Series A, 6% due 5/15/2025 1,926
1,580 Village of Wheeling, Illinois, Revenue Bonds (North Milwaukee/Lake-Cook Tax
Increment Financing (TIF) Redevelopment Project), 6% due 1/01/2025 1,616
Indiana - 0.8% 4,300 Indiana Transportation Finance Authority, Highway Revenue Bonds, Series A, 5%
due 6/01/2028 (e) 4,533
Louisiana - 2.2% 6,965 Louisiana Public Facilities Authority Revenue Bonds (University of New Orleans
Research and Technology Foundation, Inc. - Student Housing Project), 5.25% due
3/01/2026 (f) 7,642
5,000 Port New Orleans, Louisiana, IDR, Refunding (Continental Grain Company Project),
6.50% due 1/01/2017 5,100
Maine - 0.3% 1,965 Portland, Maine, Housing Development Corporation, Senior Living Revenue Bonds
(Avesta Housing Development Corporation Project), Series A, 6% due 2/01/2034 2,085
Maryland - 0.1% 500 Maryland State Industrial Development Financing Authority, EDR (Our Lady of Good
Counsel School), Series A, 6% due 5/01/2035 538
Massachusetts - 4.9% 4,560 Massachusetts Bay Transportation Authority, Sales Tax Revenue Refunding Bonds,
Senior Series A, 5% due 7/01/2012 (g) 4,854
7,695 Massachusetts Bay Transportation Authority, Special Assessment Revenue Refunding
Bonds, Series A, 5% due 7/01/2015 (g) 8,401
1,210 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds
(Ogden Haverhill Associates), AMT, Series B, 5.35% due 12/01/2015 1,245
2,000 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds
(Ogden Haverhill Associates), AMT, Series B, 5.50% due 12/01/2019 2,076
3,000 Massachusetts State Industrial Finance Agency, Resource Recovery Revenue Refunding
Bonds (Ogden Haverhill Project), AMT, Series A, 5.30% due 12/01/2009 3,078
8,325 Massachusetts State School Building Authority, Dedicated Sales Tax Revenue Bonds,
Series A, 5% due 8/15/2030 (e) 8,893
Michigan - 1.3% 2,325 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds (Mount
Clemens General Hospital), Series B, 5.875% due 11/15/2034 2,472
4,795 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Oakwood
Obligated Group), Series A, 6% due 4/01/2022 5,290
Minnesota - 1.0% 1,000 Minneapolis and Saint Paul, Minnesota, Housing and Redevelopment Authority, Health
Care System Revenue Bonds (Group Health Plan Inc. Project), 6% due 12/01/2019 1,098
2,545 Minneapolis and Saint Paul, Minnesota, Housing and Redevelopment Authority, Health
Care System Revenue Bonds (Group Health Plan Inc. Project), 6% due 12/01/2021 2,798
2,000 Minnesota State Municipal Power Agency, Electric Revenue Bonds, Series A, 5.25%
due 10/01/2024 2,142
Mississippi - 1.4% 5,000 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System
Energy Resources Inc. Project), 5.875% due 4/01/2022 5,054
2,910 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System
Energy Resources Inc. Project), 5.90% due 5/01/2022 2,941
Missouri - 0.4% 2,050 Missouri Development Finance Board, Cultural Facilities Revenue Bonds (Nelson
Gallery Foundation), VRDN, Series B, 3.63% due 12/01/2031 (f)(h) 2,050
Nevada - 0.4% 2,245 Clark County, Nevada, Improvement District Number 142, Special Assessment Bonds,
6.375% due 8/01/2023 2,325
New Jersey - 13.5% 3,635 Garden State Preservation Trust of New Jersey, Open Space and Farmland Preservation
Revenue Bonds, Series A, 5.80% due 11/01/2021 (e) 4,200
5,050 Garden State Preservation Trust of New Jersey, Open Space and Farmland Preservation
Revenue Bonds, Series A, 5.80% due 11/01/2023 (e) 5,840
10,950 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.625% due 6/15/2018 11,347
9,810 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75% due 6/15/2029 10,643
17,900 New Jersey EDA, Motor Vehicle Surcharge Revenue Bonds, Series A, 5.25% due
7/01/2033 (f) 19,370
5,540 New Jersey EDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project),
AMT, 6.625% due 9/15/2012 5,974
5,000 New Jersey EDA, Water Facilities Revenue Refunding Bonds (American Water), AMT,
Series B, 5.125% due 4/01/2022 (a) 5,290
4,215 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue
Bonds, Series D, 5% due 6/15/2018 (a) 4,567
11,120 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue
Bonds, Series D, 5% due 6/15/2019 (e) 12,024
New Mexico - 3.9% 3,000 Farmington, New Mexico, PCR, Refunding (Public Service Company of New Mexico - San
Juan Project), Series D, 6.375% due 4/01/2022 3,067
9,000 Farmington, New Mexico, PCR, Refunding (Tucson Electric Power Company - San Juan
Project), Series A, 6.95% due 10/01/2020 9,290
9,520 New Mexico Finance Authority, Senior Lien State Transportation Revenue Bonds,
Series A, 5.125% due 6/15/2018 (f) 10,336
New York - 25.8% 1,090 Dutchess County, New York, IDA, Civic Facility Revenue Bonds (Saint Francis
Hospital), Series B, 7.25% due 3/01/2019 1,201
10,500 Metropolitan Transportation Authority, New York, Revenue Refunding Bonds, Series A,
5.75% due 11/15/2032 11,452
875 New York City, New York, City IDA, Civic Facility Revenue Bonds (Special Needs
Facilities Pooled Program), Series C-1, 5.50% due 7/01/2007 878
3,500 New York City, New York, City IDA, Special Facility Revenue Bonds (Continental
Airlines Inc. Project), AMT, 8.375% due 11/01/2016 3,913
1,110 New York City, New York, City Transitional Finance Authority, Future Tax Secured
Revenue Bonds, Series C, 5.50% due 5/01/2009 (g) 1,164
5,000 New York City, New York, GO, Refunding, Series B, 5.75% due 8/01/2015 5,466
2,055 New York City, New York, IDA, Civic Facility Revenue Bonds (Special Needs Facilities
Pooled Program), Series C-1, 6.80% due 7/01/2019 2,206
9,070 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds,
Series A, 5% due 10/15/2020 (f) 9,791
5,580 New York State Dormitory Authority, Lease Revenue Refunding Bonds (Court
Facilities), Series A, 5.25% due 5/15/2012 5,937
4,615 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A, 6.625% due
7/01/2010 (g) 5,088
3,670 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A, 6.625% due
7/01/2010 (g) 4,047
2,385 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A, 6.625% due
7/01/2018 2,575
1,330 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding
Bonds (Mount Sinai-NYU Medical Center Health System), Series A, 6.625% due 7/01/2019 1,435
1,000 New York State Dormitory Authority Revenue Bonds (North Shore L I Jewish Group),
5% due 5/01/2012 1,047
9,540 New York State Dormitory Authority Revenue Bonds (School Districts Financing
Program), Series D, 5.25% due 10/01/2023 (f) 10,231
7,775 New York State Dormitory Authority, Revenue Refunding Bonds (City University
System), Consolidated Second Generation, Series A, 6.125% due 7/01/2013 (a) 8,428
7,380 New York State Environmental Facilities Corporation, State Personal Income Tax
Revenue Bonds, Series A, 5.25% due 12/15/2014 (c)(g) 8,180
60 New York State Thruway Authority, Local Highway and Bridge Service Contract,
Revenue Refunding Bonds, 5.50% due 4/01/2017 65
825 New York State Urban Development Corporation, Correctional and Youth Facilities
Services, Revenue Refunding Bonds, Series A, 5.50% due 1/01/2011 (g) 881
10,825 New York State Urban Development Corporation, Correctional and Youth Facilities
Services, Revenue Refunding Bonds, Series A, 5.50% due 1/01/2017 11,480
10,000 New York State Urban Development Corporation, Personal Income Tax Revenue Bonds
(State Facilities), Series A-1, 5.25% due 3/15/2034 (c) 10,816
5,000 Port Authority of New York and New Jersey, Senior Consolidated Revenue Bonds, AMT,
131st Series, 5% due 12/15/2017 (b) 5,323
3,340 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series A-1,
5.50% due 6/01/2016 3,521
6,510 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series A-1,
5.25% due 6/01/2022 (a) 6,971
9,750 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1,
5.50% due 6/01/2020 (c) 10,608
7,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1,
5.50% due 6/01/2021 7,612
10,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1,
5.50% due 6/01/2022 10,863
North Carolina - 1.7% 3,105 Gaston County, North Carolina, Industrial Facilities and Pollution Control
Financing Authority, Revenue Bonds (National Gypsum Company Project), AMT, 5.75%
due 8/01/2035 3,346
6,000 North Carolina Medical Care Commission, Health Care Facilities, First Mortgage
Revenue Refunding Bonds (Presbyterian Homes Project), 7% due 10/01/2010 (g) 6,717
Ohio - 0.2% 1,280 Port of Greater Cincinnati Development Authority, Ohio, Special Assessment Revenue
Bonds (Cooperative Public Parking Infrastructure Project), 6.30% due 2/15/2024 1,389
Pennsylvania - 6.4% 3,500 Montgomery County, Pennsylvania, IDA, Revenue Bonds (Whitemarsh Continuing Care
Project), 6% due 2/01/2021 3,698
7,710 Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue
Bonds (National Gypsum Company), AMT, Series A, 6.25% due 11/01/2027 8,122
7,490 Philadelphia, Pennsylvania, Gas Works Revenue Refunding Bonds, 1975 General
Ordinance, 17th Series, 5.375% due 7/01/2022 (e) 8,136
9,630 Pittsburgh, Pennsylvania, GO, Refunding, Series B, 5.25% due 9/01/2017 (e) 10,701
1,750 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2015 1,930
3,000 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2016 3,309
1,490 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds
(Guthrie Healthcare System), Series A, 6.25% due 12/01/2018 1,640
South Carolina - 2.2% 8,000 Georgetown County, South Carolina, Pollution Control Facilities, Revenue Refunding
Bonds (International Paper Company Project), Series A, 5.125% due 2/01/2012 8,335
4,250 Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Hospital
Facilities, Revenue Refunding Bonds, Series A, 5.25% due 8/15/2023 (d)(f)(k) 4,593
Tennessee - 4.9% 300 Blount County, Tennessee, Public Building Authority, Local Government Public
Improvement Revenue Bonds, VRDN, Series A3A, 3.64% due 6/01/2026 (a)(h) 300
1,800 Johnson City, Tennessee, Health and Educational Facilities Board, Retirement
Facility Revenue Bonds (Appalachian Christian Village Project), Series A, 6%
due 2/15/2019 1,827
5,000 McMinn County, Tennessee, IDB, PCR (Calhoun Newsprint Co. Project), AMT, 7.625%
due 3/01/2016 5,027
2,005 Memphis-Shelby County, Tennessee, Airport Authority, Airport Revenue Bonds, AMT,
Series A, 5.50% due 3/01/2017 (e) 2,117
4,000 Sevier County, Tennessee, Public Building Authority, Local Government Public
Improvement Revenue Bonds, VRDN, Series IV-F-1, 3.64% due 6/01/2025 (a)(h) 4,000
3,550 Shelby County, Tennessee, Health, Educational & Housing Facilities Board Revenue
Bonds (Germantown Village), Series A, 6.75% due 12/01/2018 3,513
1,450 Shelby County, Tennessee, Health, Educational & Housing Facilities Board Revenue
Bonds (Germantown Village), Series A, 7% due 12/01/2023 1,458
745 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital
Revenue Refunding Bonds (Methodist Healthcare), 6% due 9/01/2012 (g) 831
1,495 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital
Revenue Refunding Bonds (Methodist Healthcare), 6% due 9/01/2012 (g) 1,667
1,255 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital
Revenue Refunding Bonds (Methodist Healthcare), 6% due 9/01/2012 (g) 1,400
2,505 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital
Revenue Refunding Bonds (Methodist Healthcare), 6% due 9/01/2012 (g) 2,794
1,310 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital
Revenue Refunding Bonds (Methodist Healthcare), 6.25% due 9/01/2012 (g) 1,477
2,190 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital
Revenue Refunding Bonds (Methodist Healthcare), 6.25% due 9/01/2012 (g) 2,469
Texas - 12.0% 6,230 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.),
First Tier, Series A, 6.375% due 1/01/2011 (g) 6,751
10,260 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.),
First Tier, Series A, 6.70% due 1/01/2011 (g) 11,344
500 Bell County, Texas, Health Facilities Development Corporation, Hospital Revenue
Bonds (Scott & White Memorial Hospital), VRDN, Series B-2, 3.64% due 8/15/2029 (f)(h) 500
1,500 Bexar County, Texas, Health Facilities Development Corporation, Revenue Refunding
Bonds (Army Retirement Residence Project), 6.30% due 7/01/2012 (g) 1,693
1,500 Brazos River Authority, Texas, PCR, Refunding (TXU Energy Company LLC Project),
AMT, Series A, 6.75% due 4/01/2038 1,637
5,085 Brazos River Authority, Texas, PCR, Refunding (Texas Utility Company), AMT,
Series A, 7.70% due 4/01/2033 5,839
4,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation,
Revenue Bonds (Learjet Inc.), AMT, Series A-1, 6.15% due 1/01/2016 4,041
5,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation,
Revenue Refunding Bonds, AMT, Series A-2, 9% due 5/01/2029 6,227
2,440 Gulf Coast, Texas, IDA, Solid Waste Disposal Revenue Bonds (Citgo Petroleum
Corporation Project), AMT, 7.50% due 5/01/2025 2,750
3,000 Gulf Coast Waste Disposal Authority, Texas, Revenue Refunding Bonds (International
Paper Company), AMT, Series A, 6.10% due 8/01/2024 3,239
5,790 Houston, Texas, Airport System Revenue Refunding Bonds, Sub-Lien, AMT, Series A,
5.50% due 7/01/2023 (e) 6,050
1,500 Houston, Texas, Health Facilities Development Corporation, Retirement Facility
Revenue Bonds (Buckingham Senior Living Community), Series A, 7% due 2/15/2023 1,683
7,420 Lower Colorado River Authority, Texas, PCR (Samsung Austin Semiconductor), AMT,
6.95% due 4/01/2030 8,077
2,600 Matagorda County, Texas, Navigation District Number 1, Revenue Refunding Bonds
(Reliant Energy Inc.), Series C, 8% due 5/01/2029 2,741
2,300 Port Corpus Christi, Texas, Individual Development Corporation, Environmental
Facilities Revenue Bonds (Citgo Petroleum Corporation Project), AMT, 8.25% due
11/01/2031 2,358
5,000 Sabine River Authority, Texas, PCR, Refunding (TXU Electric Company Project/TXU
Energy Company LLC), AMT, Series B, 5.75% due 5/01/2030 5,156
Utah - 0.2% 900 Emery County, Utah, PCR, Refunding (PacifiCorp Projects), VRDN, 3.64% due
11/01/2024 (a)(h) 900
Virginia - 4.5% 3,285 James City County, Virginia, IDA, Residential Care Facility Revenue Refunding
Bonds, Series A, 5.75% due 3/01/2017 3,453
1,150 James City County, Virginia, IDA, Residential Care Facility Revenue Refunding
Bonds, Series A, 6% due 3/01/2023 1,228
2,250 Loudoun County, Virginia, IDA, IDR, Refunding (Dulles Airport Marriott Hotel),
7.125% due 9/01/2015 2,275
10,735 Pocahontas Parkway Association, Virginia, Toll Road Revenue Bonds, Senior-Series A,
5.50% due 8/15/2008 (g) 11,225
7,800 Tobacco Settlement Financing Corporation of Virginia, Asset-Backed Revenue Bonds,
5.625% due 6/01/2037 8,330
Washington - 2.1% 1,500 Seattle, Washington, Municipal Light and Power Revenue Bonds, 5.30% due
12/01/2020 (f) 1,579
10,000 Snohomish County, Washington, School District Number 015 (Edmonds), GO, 5%
due 12/01/2019 (c) 10,856
Guam - 0.8% 4,250 Commonwealth of the Northern Mariana Islands, Guam, GO, Series A, 6.75% due
10/01/2033 4,767
Puerto Rico - 7.7% 1,820 Puerto Rico Commonwealth, Public Improvement, GO, Refunding, Series B, 5.25%
due 7/01/2032 1,977
17,935 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series NN, 5.50%
due 7/01/2018 19,463
5,390 Puerto Rico Industrial, Medical and Environmental Pollution Control Facilities
Financing Authority, Special Facilities Revenue Bonds (American Airlines Inc.),
Series A, 6.45% due 12/01/2025 5,502
5,170 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding
Bonds, Series D, 5.25% due 7/01/2027 5,473
8,000 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding
Bonds, Series I, 5.50% due 7/01/2021 8,810
3,535 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds,
Series E, 5.50% due 8/01/2029 3,741
U.S. Virgin 1,860 Virgin Islands Government Refinery Facilities, Revenue Refunding Bonds (Hovensa
Islands - 1.6% Coker Project), AMT, 6.50% due 7/01/2021 2,104
6,750 Virgin Islands Public Finance Authority, Refinery Facilities Revenue Bonds
(Hovensa Refinery), AMT, 6.125% due 7/01/2022 7,503
Total Municipal Bonds (Cost - $814,809) - 146.2% 856,461
Municipal Bonds Held in Trust (I)
California - 3.2% 17,730 California Pollution Control Financing Authority, PCR, Refunding (Pacific Gas
and Electric), AMT, Series A, 5.35% due 12/01/2016 (f) 18,996
New York - 2.1% 11,100 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds,
Series A, 5.25% due 10/15/2027 (a) 12,157
Texas - 5.6% 31,240 Harris County, Texas, Toll Road Revenue Refunding Bonds, Senior Lien, Series A,
5.25% due 8/15/2035 (e) 32,581
Total Municipal Bonds Held in Trust (Cost - $63,151) - 10.9% 63,734
Total Investments (Cost - $877,960*) - 157.1% 920,195
Other Assets Less Liabilities - 2.7% 15,896
Liability for Trust Certificates, Including Interest Expense Payable - (5.1%) (30,212)
Preferred Stock, at Redemption Value - (54.7%) (320,194)
-----------
Net Assets Applicable to Common Stock - 100.0% $ 585,685
===========
* The cost and unrealized appreciation (depreciation) of investments
as of February 28, 2007, as computed for federal income tax purposes,
were as follows:
Aggregate cost $ 848,384
====================
Gross unrealized appreciation $ 42,216
Gross unrealized depreciation (440)
--------------------
Net unrealized appreciation $ 41,776
====================
(a) AMBAC Insured.
(b) CIFG Insured.
(c) FGIC Insured.
(d) FHA Insured.
(e) FSA Insured.
(f) MBIA Insured.
(g) Prerefunded.
(h) Security may have a maturity of more than one year at time of issuance,
but has variable rate and demand features that qualify it as a short-term
security. The rate disclosed is that currently in effect. This rate
changes periodically based upon prevailing market rates.
(i) Securities represent underlying bonds transferred to a separate
securitization trust established in a tender option bond transaction
in which the Fund may have acquired the residual interest certificates.
These securities serve as collateral in a financing transaction.
(j) XL Capital Insured.
(k) Federal Housing Administration/Veterans' Administration Mortgages
packaged by the Federal National Mortgage Association.
Item 2 - Controls and Procedures
2(a) - The registrant's certifying officers have reasonably designed such
disclosure controls and procedures to ensure material information
relating to the registrant is made known to us by others particularly
during the period in which this report is being prepared. The
registrant's certifying officers have determined that the
registrant's disclosure controls and procedures are effective based
on our evaluation of these controls and procedures as of a date
within 90 days prior to the filing date of this report.
2(b) - As of September 29, 2006, with the conclusion of the combination of
Merrill Lynch's asset management business with BlackRock, the
registrant was migrated to BlackRock's trading and compliance
monitoring systems, and various personnel changes occurred. In
conjunction with these business improvements, there were no changes
in the registrant's internal control over financial reporting (as
defined in Rule 30a-3(d) under Act (17 CFR 270.30a-3(d)) that
occurred during the last fiscal quarter that has materially affected,
or is reasonably likely to 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/ Robert C. Doll, Jr.
-----------------------
Robert C. Doll, Jr.
Chief Executive Officer
BlackRock Muni Intermediate Duration Fund, Inc.
Date: April 23, 2007
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/ Robert C. Doll, Jr.
-----------------------
Robert C. Doll, Jr.
Chief Executive Officer
BlackRock Muni Intermediate Duration Fund, Inc.
Date: April 23, 2007
By: /s/ Donald C. Burke
-------------------
Donald C. Burke
Chief Financial Officer
BlackRock Muni Intermediate Duration Fund, Inc.
Date: April 23, 2007