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: 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, 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: 05/31/2006 Date of reporting period: 12/01/05 - 02/28/06 Item 1 - Schedule of Investments Muni Intermediate Duration Fund, Inc. Schedule of Investments as of February 28, 2006 (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 $ 5,989 6,500 Jefferson County, Alabama, Limited Obligation School Warrants, Series A, 5.25% due 1/01/2023 6,920 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 6,650 Arizona - 4.4% 3,020 Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project 1), Series A, 6.625% due 7/01/2020 3,028 3,000 Navajo County, Arizona, IDA, IDR (Stone Container Corporation Project), AMT, 7.20% due 6/01/2027 3,104 1,000 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series C, 6.70% due 7/01/2021 1,058 1,750 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series K/L, 6.375% due 7/01/2031 1,821 2,760 Pinal County, Arizona, COP, 5.25% due 12/01/2018 2,958 2,910 Pinal County, Arizona, COP, 5.25% due 12/01/2019 3,114 3,065 Pinal County, Arizona, COP, 5.25% due 12/01/2020 3,278 3,230 Pinal County, Arizona, COP, 5.25% due 12/01/2021 3,452 3,630 Vistancia Community Facilities District, Arizona, GO, 5% due 7/15/2014 3,603 Arkansas - 1.1% 3,755 Conway, Arkansas, Public Facilities Board, Capital Improvement Revenue Refunding Bonds (Hendrix College Projects), Series B, 5% due 10/01/2026 3,880 1,000 University of Arkansas, University Revenue Refunding Bonds (UAMS Campus), Series A, 5% due 11/01/2013 (d) 1,078 1,250 University of Arkansas, University Revenue Refunding Bonds (UAMS Campus), Series A, 5% due 11/01/2015 (d) 1,349 California - 26.7% 8,865 California Pollution Control Financing Authority, PCR, Refunding, DRIVERS, AMT, Series 878Z, 7.183% due 12/01/2009 (d)(h) 10,128 5,000 California State Department of Water Resources, Power Supply Revenue Bonds, Series A, 5.375% due 5/01/2012 (i) 5,535 5,000 California State, GO, Refunding, 5.25% due 2/01/2027 (d) 5,352 10,000 California State Public Works Board, Lease Revenue Bonds (Department of Corrections), Series C, 5.50% due 6/01/2020 11,055 17,500 California State, Various Purpose, GO, 5.50% due 4/01/2028 19,439 2,500 California Statewide Communities Development Authority, Health Facility Revenue Bonds (Memorial Health Services), Series A, 6% due 10/01/2023 2,775 2,400 Elk Grove, California, Poppy Ridge Community Facilities Number 3 Special Tax, Series 1, 6% due 9/01/2008 (i) 2,551 6,440 Grossmont-Cuyamaca Community College District, California, GO (Election of 2002), Series A, 5% due 8/01/2027 (d) 6,757 10,485 Los Angeles, California, Unified School District, GO (Election of 1997), Series F, 5% due 7/01/2025 (b) 11,115 Portfolio Abbreviations To simplify the listings of 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 DRIVERS Derivative Inverse Tax-Exempt Receipts EDA Economic Development Authority GO General Obligation Bonds HFA Housing Finance Agency 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 Muni Intermediate Duration Fund, Inc. Schedule of Investments as of February 28, 2006 (concluded) (in Thousands) Face State Amount Municipal Bonds Value California $ 26,575 Los Angeles, California, Unified School District, GO, Series A, 5% due (concluded) 1/01/2028 (d) $ 28,059 3,565 Oakland, California, Sewer Revenue Bonds, Series A, 5% due 6/15/2028 (c) 3,758 2,000 Oakland, California, Sewer Revenue Bonds, Series A, 5% due 6/15/2029 (c) 2,105 5,850 Ontario-Monclair, California, School District, GO (Election of 2002), Series A, 5% due 8/01/2027 (b) 6,128 10,135 Peralta, California, Community College District, GO (Election of 2000), Series D, 5% due 8/01/2030 (c) 10,712 1,515 Rowland, California, Unified School District, GO (Election of 2000), Series B, 5.25% due 8/01/2027 (c) 1,626 585 Sacramento, California, Special Tax (North Natomas Community Facilities), Series 4-C, 5.60% due 9/01/2020 620 1,720 Sacramento, California, Special Tax (North Natomas Community Facilities), Series 4-C, 5.75% due 9/01/2022 1,837 500 Sacramento, California, Special Tax (North Natomas Community Facilities), Series 4-C, 5.90% due 9/01/2023 537 3,000 Sacramento, California, Special Tax (North Natomas Community Facilities), Series 4-C, 6% due 9/01/2028 3,229 3,000 San Jose, California, Airport Revenue Bonds, Series A, 5.25% due 3/01/2017 (b) 3,202 3,100 San Jose, California, GO (Libraries, Parks and Public Safety Projects), 5% due 9/01/2030 (d) 3,246 9,030 Sequoia, California, Unified High School District, GO, Refunding, Series B, 5.50% due 7/01/2035 (c) 10,111 4,875 Tamalpais, California, Union High School District, GO (Election of 2001), 5% due 8/01/2028 (c) 5,112 Colorado - 2.6% 2,000 Denver, Colorado, City and County Airport Revenue Refunding Bonds, Series E, 5.25% due 11/15/2023 (d) 2,072 900 Elk Valley, Colorado, Public Improvement Revenue Bonds (Public Improvement Fee), Series A, 7.10% due 9/01/2014 967 2,250 Montrose, Colorado, Memorial Hospital, Revenue Bonds, 6.375% due 12/01/2023 2,532 7,500 Plaza Metropolitan District Number 1, Colorado, Tax Allocation Revenue Bonds (Public Improvement Fees), 7.50% due 12/01/2015 8,274 1,000 Southlands, Colorado, Medical District, GO (Metropolitan District Number 1), 6.75% due 12/01/2016 1,095 Connecticut - 1.7% 1,160 Connecticut State Development Authority, Airport Facility Revenue Bonds (LearJet Inc. Project), AMT, 7.95% due 4/01/2026 1,380 8,000 Connecticut State Development Authority, PCR, Refunding (Connecticut Light and Power Company), Series A, 5.85% due 9/01/2028 8,478 Florida - 4.7% 1,000 Broward County, Florida, Airport Exempt Facility Revenue Bonds (Learjet Inc. Project), AMT, 7.50% due 11/01/2020 1,136 2,970 Harbor Bay, Florida, Community Development District, Capital Improvement Special Assessment Bonds, 6.75% due 5/01/2034 3,231 2,550 Heritage Isle at Viera Community Development District, Florida, Special Assessment Bonds, Series B, 5% due 11/01/2009 2,562 4,705 Lee County, Florida, Revenue Bonds, 5% due 10/01/2022 (a) 5,029 3,500 Midtown Miami, Florida, Community Development District, Special Assessment Revenue Bonds, Series A, 6% due 5/01/2024 3,732 3,670 Orange County, Florida, Health Facilities Authority, Health Care Revenue Refunding Bonds (Orlando Lutheran Towers), 5% due 7/01/2013 3,639 965 Orlando, Florida, Urban Community Development District, Capital Improvement Special Assessment Bonds, 6% due 5/01/2020 1,040 1,085 Portofino Shores, Florida, Community Development District, Special Assessment Bonds, Series A, 6.40% due 5/01/2034 1,144 2,390 South Lake County, Florida, Hospital District Revenue Bonds (South Lake Hospital Inc.), 6.625% due 10/01/2023 2,645 875 Sterling Hill, Florida, Community Development District, Capital Improvement Revenue Refunding Bonds, Series B, 5.50% due 11/01/2010 880 2,060 Watergrass Community Development District, Florida, Special Assessment Revenue Bonds, Series B, 4.875% due 11/01/2010 2,066 Georgia - 3.1% 1,500 Atlanta, Georgia, Tax Allocation Bonds (Atlantic Station Project), 7.90% due 12/01/2024 1,630 5,395 Brunswick & Glynn County, Georgia, Development Authority, First Mortgage Revenue Bonds (Coastal Community Retirement Corporation Project), Series A, 7.125% due 1/01/2025 5,493 2,800 Brunswick & Glynn County, Georgia, Development Authority, First Mortgage Revenue Bonds (Coastal Community Retirement Corporation Project), Series A, 7.25% due 1/01/2035 2,849 4,500 Fulton County, Georgia, Residential Care Facilities, Revenue Refunding Bonds (Canterbury Court Project), Series A, 5.80% due 2/15/2018 4,581 1,245 Savannah, Georgia, EDA, Revenue Bonds (Marshes of Skidaway), First Mortgage, Series A, 6.25% due 1/01/2012 1,255 2,245 Savannah, Georgia, EDA, Revenue Bonds (Marshes of Skidaway), First Mortgage, Series A, 6.85% due 1/01/2019 2,341 Idaho - 0.1% 465 Idaho Housing and Finance Association, S/F Mortgage Revenue Bonds, AMT, Series F-2, 5.85% due 7/01/2015 (e) 467 Illinois - 3.5% 2,510 Chicago, Illinois, O'Hare International Airport Revenue Bonds, 3rd Lien, AMT, Series B-2, 6% due 1/01/2029 (f) 2,813 6,000 Hodgkins, Illinois, Environmental Improvement Revenue Bonds (Metro Biosolids Management LLC Project), AMT, 5.90% due 11/01/2017 6,313 6,930 Illinois, Development Finance Authority Revenue Bonds (Community Rehabilitation Providers Facilities), Series A, 6.625% due 7/01/2032 7,517 1,800 Illinois State Finance Authority Revenue Bonds (Landing At Plymouth Place Project), Series A, 6% due 5/15/2025 1,837 1,580 Village of Wheeling, Illinois, Revenue Bonds (North Milwaukee/Lake-Cook Tax Increment Financing (TIF) Redevelopment Project), 6% due 1/01/2025 1,555 Louisiana - 0.9% 5,000 Port New Orleans, Louisiana, IDR, Refunding (Continental Grain Company Project), 6.50% due 1/01/2017 5,116 Maine - 1.6% 1,965 Portland, Maine, Housing Development Corporation, Senior Living Revenue Bonds (Avesta Housing Development Corporation Project), Series A, 6% due 2/01/2034 2,056 7,000 Rumford, Maine, Solid Waste Disposal Revenue Refunding Bonds (Boise Cascade Corporation Project), AMT, 6.875% due 10/01/2026 7,482 Maryland - 0.9% 4,330 Baltimore, Maryland, Convention Center Hotel Revenue Bonds, Senior Series A, 5.25% due 9/01/2027 (f) 4,740 500 Maryland State Industrial Development Financing Authority, Economic Development Revenue Bonds (Our Lady of Good Counsel School), Series A, 6% due 5/01/2035 524 Massachusetts - 6.2% 4,560 Massachusetts Bay Transportation Authority, Sales Tax Revenue Refunding Bonds, Senior Series A, 5% due 7/01/2012 (i) 4,911 7,695 Massachusetts Bay Transportation Authority, Special Assessment Revenue Refunding Bonds, Series A, 5% due 7/01/2031 8,142 1,210 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds (Ogden Haverhill Associates), AMT, Series B, 5.35% due 12/01/2015 1,224 2,000 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds (Ogden Haverhill Associates), AMT, Series B, 5.50% due 12/01/2019 2,037 9,050 Massachusetts State, HFA, Rental Housing Mortgage Revenue Bonds, AMT, Series A, 5.15% due 7/01/2026 (c) 9,173 10,000 Massachusetts State School Building Authority, Dedicated Sales Tax Revenue Bonds, Series A, 5% due 8/15/2030 (c) 10,595 Michigan - 1.5% 3,325 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds (Mount Clemens General Hospital), Series B, 5.875% due 11/15/2034 3,377 4,795 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Oakwood Obligated Group), Series A, 6% due 4/01/2022 5,267 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 1,104 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 2,799 2,000 Minnesota State Municipal Power Agency, Electric Revenue Bonds, Series A, 5.25% due 10/01/2024 2,137 Mississippi - 1.4% 5,000 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System Energy Resources Inc. Project), 5.875% due 4/01/2022 5,064 2,910 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System Energy Resources Inc. Project), 5.90% due 5/01/2022 2,949 Nevada - 0.4% 2,250 Clark County, Nevada, Improvement District Number 142, Special Assessment Bonds, 6.375% due 8/01/2023 2,338 New Jersey - 16.3% 3,635 Garden State Preservation Trust of New Jersey, Open Space and Farmland Preservation Revenue Bonds, Series A, 5.80% due 11/01/2021 (c) 4,223 5,050 Garden State Preservation Trust of New Jersey, Open Space and Farmland Preservation Revenue Bonds, Series A, 5.80% due 11/01/2023 (c) 5,871 10,950 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.625% due 6/15/2018 11,525 9,810 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75% due 6/15/2029 10,462 17,900 New Jersey EDA, Motor Vehicle Surcharge Revenue Bonds, Series A, 5.25% due 7/01/2033 (d) 19,275 5,540 New Jersey EDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project), AMT, 6.625% due 9/15/2012 5,653 5,000 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series C, 5.25% due 6/15/2021 (d) 5,465 10,000 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series D, 5% due 6/15/2018 (a) 10,745 20,000 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series D, 5% due 6/15/2019 (c) 21,443 New Mexico - 2.2% 3,000 Farmington, New Mexico, PCR, Refunding (Public Service Company of New Mexico - San Juan), Series D, 6.375% due 4/01/2022 3,165 9,000 Farmington, New Mexico, PCR, Refunding (Tucson Electric Power Co.-San Juan Project), Series A, 6.95% due 10/01/2020 9,376 New York - 26.4% 1,145 Dutchess County, New York, IDA, Civic Facility Revenue Bonds (Saint Francis Hospital), Series B, 7.25% due 3/01/2019 1,248 5,465 Metropolitan Transportation Authority, New York, Revenue Bonds, Series B, 5% due 11/15/2027 (a) 5,806 6,600 Metropolitan Transportation Authority, New York, Revenue Bonds, Series B, 5% due 11/15/2030 (a) 6,990 10,500 Metropolitan Transportation Authority, New York, Revenue Refunding Bonds, Series A, 5.75% due 11/15/2032 11,627 1,755 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 1,774 3,500 New York City, New York, City IDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project), AMT, 8.375% due 11/01/2016 3,625 1,110 New York City, New York, City Transitional Finance Authority, Future Tax Secured Revenue Bonds, Series C, 5.50% due 5/01/2009 (i) 1,188 5,000 New York City, New York, GO, Refunding, Series B, 5.75% due 8/01/2015 5,543 2,540 New York City, New York, IDA, Civic Facility Revenue Bonds (Special Needs Facilities Pooled Program), Series C-1, 3.40% due 7/01/2019 2,444 5,550 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds, DRIVERS, Series 1133Z, 7.004% due 10/15/2012 (a)(h) 6,503 4,325 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds, Series A, 5% due 10/15/2032 (a) 4,576 3,900 New York Convention Center Development Corporation, New York, Revenue Bonds (Hotel Unit Fee Secured), 5% due 11/15/2027 (a) 4,143 5,580 New York State Dormitory Authority, Lease Revenue Refunding Bonds (Court Facilities), Series A, 5.25% due 5/15/2012 6,000 1,000 New York State Dormitory Authority Revenue Bonds (North Shore L I Jewish Group), 5% due 5/01/2012 1,056 7,075 New York State Dormitory Authority Revenue Bonds (School Districts Financing Program), Series D, 5.25% due 10/01/2023 (d) 7,640 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) 8,627 7,000 New York State Dormitory Authority, Revenue Refunding Bonds (Mount Sinai Health), Series A, 6.625% due 7/01/2018 7,621 5,000 New York State Dormitory Authority, Revenue Refunding Bonds (Mount Sinai Health), Series A, 6.625% due 7/01/2019 5,443 8,085 New York State Thruway Authority, General Revenue Refunding Bonds, Series G, 5.25% due 1/01/2027 (c) 8,813 60 New York State Thruway Authority, Local Highway and Bridge Service Contract, Revenue Refunding Bonds, 5.50% due 4/01/2017 66 11,650 New York State Urban Development Corporation, Correctional and Youth Facilities Services Revenue Refunding Bonds, Series A, 5.50% due 1/01/2017 12,515 10,000 New York State Urban Development Corporation, Personal Income Tax Revenue Bonds (State Facilities), Series A-1, 5.25% due 3/15/2034 (b) 10,751 3,340 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series A-1, 5.50% due 6/01/2016 3,569 6,510 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series A-1, 5.25% due 6/01/2022 (a) 7,005 7,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1, 5.50% due 6/01/2021 7,660 10,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1, 5.50% due 6/01/2022 10,943 North Carolina - 2.2% 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 3,262 6,000 North Carolina Medical Care Commission, Health Care Facilities, First Mortgage Revenue Refunding Bonds (Presbyterian Homes Project), 7% due 10/01/2031 6,397 3,150 North Carolina Medical Care Commission, Health Care Housing Revenue Bonds (The ARC of North Carolina Projects), Series A, 5.50% due 10/01/2024 3,353 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 1,366 Oklahoma - 0.5% 2,780 Norman, Oklahoma, Regional Hospital Authority, Hospital Revenue Bonds, 5.50% due 9/01/2025 2,888 Pennsylvania - 4.6% 3,500 Montgomery County, Pennsylvania, IDA, Revenue Bonds (Whitemarsh Continuing Care Project), 6% due 2/01/2021 3,672 7,710 Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds (National Gypsum Company), AMT, Series A, 6.25% due 11/01/2027 8,220 7,490 Philadelphia, Pennsylvania, Gas Works Revenue Refunding Bonds, 1975 General Ordinance, 17th Series, 5.375% due 7/01/2022 (c) 8,100 1,750 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds (Guthrie Healthcare System), Series A, 6.25% due 12/01/2015 1,950 3,000 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds (Guthrie Healthcare System), Series A, 6.25% due 12/01/2016 3,340 1,490 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds (Guthrie Healthcare System), Series A, 6.25% due 12/01/2018 1,653 South Carolina - 2.1% 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)(e) 4,571 3,000 Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Hospital Facilities, Revenue Refunding Bonds, Series A, 5.25% due 8/15/2024 (d)(e) 3,222 4,000 Newberry County, South Carolina, School District, Installment Purchase Revenue Bonds, 5% due 12/01/2030 (j) 4,159 Tennessee - 3.9% 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 1,826 5,000 McMinn County, Tennessee, IDB, PCR (Calhoun Newsprint Co. Project), AMT, 7.625% due 3/01/2016 5,010 6,000 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital Revenue Refunding Bonds (Methodist Healthcare), 6% due 9/01/2012 (i) 6,812 3,500 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital Revenue Refunding Bonds (Methodist Healthcare), 6.25% due 9/01/2012 (i) 4,021 3,550 Shelby County, Tennessee, Health, Educational and Housing Facilities Board Revenue Bonds (Germantown Village), Series A, 6.75% due 12/01/2018 3,682 1,450 Shelby County, Tennessee, Health, Educational and Housing Facilities Board Revenue Bonds (Germantown Village), Series A, 7% due 12/01/2023 1,501 Texas - 14.5% 6,445 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.), First Tier, Series A, 6.375% due 1/01/2016 6,789 10,260 Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.), First Tier, Series A, 6.70% due 1/01/2032 10,841 300 Bell County, Texas, Health Facilities Development Corporation, Hospital Revenue Bonds (Scott & White Memorial Hospital), VRDN, Series B-1, 2.95% due 8/15/2029 (d)(g) 300 1,500 Bexar County, Texas, Health Facilities Development Corporation, Revenue Refunding Bonds (Army Retirement Residence Project), 6.30% due 7/01/2032 1,612 1,500 Brazos River Authority, Texas, PCR, Refunding (TXU Energy Company LLC Project), AMT, Series A, 6.75% due 4/01/2038 1,688 5,085 Brazos River Authority, Texas, PCR, Refunding (Texas Utility Company), AMT, Series A, 7.70% due 4/01/2033 5,954 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 4,037 5,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation, Revenue Refunding Bonds, AMT, Series A-2, 9% due 5/01/2029 5,188 2,440 Gulf Coast, Texas, IDA, Solid Waste Disposal Revenue Bonds (Citgo Petroleum Corporation Project), AMT, 7.50% due 5/01/2025 2,760 6,540 Gulf Coast, Texas, Waste Disposal Authority Revenue Refunding Bonds (International Paper Company), AMT, Series A, 6.10% due 8/01/2024 6,949 9,320 Harris County, Texas, Revenue Refunding Bonds, DRIVERS, Series 1111, 6.994% due 8/15/2009 (c)(h) 10,369 6,300 Harris County, Texas, Revenue Refunding Bonds, DRIVERS, Series 1172-Z, 7.005% due 8/15/2009 (c)(h) 6,975 1,500 Houston, Texas, Health Facilities Development Corporation, Retirement Facility Revenue Bonds (Buckingham Senior Living Community), Series A, 7% due 2/15/2023 1,656 7,420 Lower Colorado River Authority, Texas, PCR (Samsung Austin Semiconductor), AMT, 6.95% due 4/01/2030 8,287 2,600 Matagorda County, Texas, Navigation District Number 1, Revenue Refunding Bonds (Reliant Energy Inc.), Series C, 8% due 5/01/2029 2,813 2,300 Port Corpus Christi, Texas, Individual Development Corporation, Environmental Facilities Revenue Bonds (Citgo Petroleum Corporation Project), AMT, 8.25% due 11/01/2031 2,420 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 5,293 Virginia - 4.5% 3,285 James City County, Virginia, IDA, Residential Care Facility Revenue Refunding Bonds, Series A, 5.75% due 3/01/2017 3,454 1,150 James City County, Virginia, IDA, Residential Care Facility Revenue Refunding Bonds, Series A, 6% due 3/01/2023 1,232 2,250 Loudoun County, Virginia, IDA, IDR, Refunding (Dulles Airport Marriott Hotel), 7.125% due 9/01/2015 2,297 10,735 Pocahontas Parkway Association, Virginia, Toll Road Revenue Bonds, Senior-Series A, 5.50% due 8/15/2028 11,038 7,800 Tobacco Settlement Financing Corporation of Virginia, Asset Backed Revenue Bonds, 5.625% due 6/01/2037 8,000 Guam - 0.4% 2,250 Commonwealth Of the Northern Mariana Islands, Guam, GO, Series A, 6.75% due 10/01/2033 2,466 Puerto Rico - 8.7% 17,935 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series NN, 5.50% due 7/01/2018 19,376 6,500 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series RR, 5% due 7/01/2025 (f) 6,924 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 4,497 1,500 Puerto Rico Municipal Finance Agency, GO, Series A, 5.25% due 8/01/2025 1,611 5,170 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding Bonds, Series D, 5.25% due 7/01/2027 5,431 8,000 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding Bonds, Series I, 5.50% due 7/01/2021 8,778 3,535 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds, Series E, 5.50% due 8/01/2029 3,762 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 7,414 Total Investments (Cost - $856,679*) - 153.3% 889,558 Other Assets Less Liabilities - 1.9% 10,951 Preferred Stock, at Redemption Value - (55.2%) (320,094) ----------- Net Assets Applicable to Common Stock - 100.0% $ 580,415 =========== * The cost and unrealized appreciation (depreciation) of investments as of February 28, 2006 as computed for federal income tax purposes, were as follows: Aggregate cost $ 856,679 ================ Gross unrealized appreciation $ 33,336 Gross unrealized depreciation (457) ---------------- Net unrealized appreciation $ 32,879 ================ (a) AMBAC Insured. (b) FGIC Insured. (c) FSA Insured. (d) MBIA Insured. (e) Federal Housing Administration/Veterans' Administration Mortgages packaged by the Federal National Mortgage Association. (f) XL Capital Insured. (g) 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. (h) The rate disclosed is that currently in effect. This rate changes periodically and inversely based upon prevailing market rates. (i) Prerefunded. (j) Assured Guaranty Insured. o Forward interest rate swaps outstanding as of February 28, 2006 were as follows: Notional Unrealized Amount Depreciation Pay a fixed rate of 3.955% and receive a floating rate based on a 1-week Bond Market Association rate Broker, JPMorgan Chase Bank Expires May 2021 $ 45,000 $ (337) Pay a fixed rate of 3.999% and receive a floating rate based on a 1-week Bond Market Association rate Broker, JPMorgan Chase Bank Expires April 2026 $ 58,000 $ (262) --------- Total $ (599) ========= 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) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the last fiscal quarter of the period covered by this report that has materially affected, or is 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. Muni Intermediate Duration Fund, Inc. By: /s/ Robert C. Doll, Jr. ---------------------- Robert C. Doll, Jr. Chief Executive Officer Muni Intermediate Duration Fund, Inc. Date: April 20, 2006 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 Muni Intermediate Duration Fund, Inc. Date: April 20, 2006 By: /s/ Donald C. Burke ------------------- Donald C. Burke Chief Financial Officer Muni Intermediate Duration Fund, Inc. Date: April 20, 2006