MIDDLESEX COUNTY, MASSACHUSETTS (ALL JURISDICTIONS)

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VOLUME 7 OF 8 MIDDLESEX COUNTY, MASSACHUSETTS COMMUNITY NAME COMMUNITY NUMBER ACTON, TOWN OF 250176 ARLINGTON, TOWN OF 250177 Middlesex County ASHBY, TOWN OF 250178 ASHLAND, TOWN OF 250179

250184 NEWTON, CITY OF 250208 BURLINGTON, TOWN OF 250185 NORTH READING, TOWN OF 250209 CAMBRIDGE, CITY OF 250186 PEPPERELL, TOWN OF 250210 CARLISLE, TOWN OF 250187 READING, TOWN OF 250211

250215 EVERETT, CITY OF 250192 STOW, TOWN OF 250216 FRAMINGHAM, TOWN OF 250193 SUDBURY, TOWN OF 250217 GROTON, TOWN OF 250194 TEWKSBURY, TOWN OF 250218 HOLLISTON, TOWN OF 250195 TOWNSEND, TOWN

WATERTOWN, TOWN OF 250223 LITTLETON, TOWN OF 250200 WAYLAND, TOWN OF 250224 LOWELL, CITY OF 250201 WESTFORD, TOWN OF 250225 MALDEN, CITY OF 250202 WESTON, TOWN OF 250226 MARLBOROUGH, CITY OF

1 VOLUME 7 OF 8 MIDDLESEX COUNTY, MASSACHUSETTS COMMUNITY NAME COMMUNITY NUMBER ACTON, TOWN OF ARLINGTON, TOWN OF Middlesex County ASHBY, TOWN OF ASHLAND, TOWN OF AYER, TOWN OF BEDFORD, TOWN OF COMMUNITY NAME COMMUNITY NUMBER BELMONT, TOWN OF MELROSE, CITY OF BILLERICA, TOWN OF NATICK, TOWN OF BOXBOROUGH, TOWN OF NEWTON, CITY OF BURLINGTON, TOWN OF NORTH READING, TOWN OF CAMBRIDGE, CITY OF PEPPERELL, TOWN OF CARLISLE, TOWN OF READING, TOWN OF CHELMSFORD, TOWN OF SHERBORN, TOWN OF CONCORD, TOWN OF SHIRLEY, TOWN OF DRACUT, TOWN OF SOMERVILLE, CITY OF DUNSTABLE, TOWN OF STONEHAM, TOWN OF EVERETT, CITY OF STOW, TOWN OF FRAMINGHAM, TOWN OF SUDBURY, TOWN OF GROTON, TOWN OF TEWKSBURY, TOWN OF HOLLISTON, TOWN OF TOWNSEND, TOWN OF HOPKINTON, TOWN OF TYNGSBOROUGH, TOWN OF HUDSON, TOWN OF WAKEFIELD, TOWN OF LEXINGTON, TOWN OF WALTHAM, CITY OF LINCOLN, TOWN OF WATERTOWN, TOWN OF LITTLETON, TOWN OF WAYLAND, TOWN OF LOWELL, CITY OF WESTFORD, TOWN OF MALDEN, CITY OF WESTON, TOWN OF MARLBOROUGH, CITY OF WILMINGTON, TOWN OF MAYNARD, TOWN OF WINCHESTER, TOWN OF MEDFORD, CITY OF WOBURN, CITY OF Federal Emergency Management Agency FLOOD INSURANCE STUDY NUMBER 25017CV007B

2 NOTICE TO FLOOD INSURANCE STUDY USERS Communities participating in the National Flood Insurance Program have established repositories of flood hazard data for floodplain management and flood insurance purposes. This Flood Insurance Study (FIS) may not contain all data available within the repository. It is advisable to contact the community repository for any additional data. Part or all of this FIS may be revised and republished at any time. In addition, part of this FIS may be revised by the Letter of Map Revision process, which does not involve republication or redistribution of the FIS. It is, therefore, the responsibility of the user to consult with community officials and to check the community repository to obtain the most current FIS components. Initial Countywide FIS Effective Date: June 4, 2010 Revised Countywide FIS Date: July 7, 2014

3 TABLE OF CONTENTS Volume 1- July 7, 2014 Page 1.0 INTRODUCTION Purpose of Study Authority and Acknowledgments Coordination AREA STUDIED Scope of Study Community Description Principal Flood Problems Flood Protection Measures ENGINEERING METHODS Hydrologic Analyses Hydraulic Analyses Vertical Datum FLOODPLAIN MANAGEMENT APPLICATIONS Floodplain Boundaries Floodways INSURANCE APPLICATIONS FLOOD INSURANCE RATE MAP OTHER STUDIES LOCATION OF DATA BIBLIOGRAPHY AND REFERENCES 117 i

4 TABLE OF CONTENTS Volume 1 continued FIGURES Page Figure 1 Floodway Schematic 108 TABLES Table 1 Initial and Final CCO Meetings Table 2 Scope of Revision 15 Table 3 Letters of Map Change 16 Table 4 Flooding Sources Studied by Detailed Methods Table 5 Areas Studied by Detailed Methods for Concord Watershed Revised Countywide Analyses Table 6 Areas Studied by Redelineation for Concord Watershed Revised Countywide Analyses 21 Table 7 Areas Studied by Approximate Methods for Concord Watershed Revised Countywide Analyses Table 8 Summary of Discharges Table 9 Summary of Stillwater Elevations Table 10 Manning s n Values Table 11 Community Map History TABLE OF CONTENTS Volume 2 - July 7, 2014 TABLES continued Table 12 Floodway Data ii

5 TABLE OF CONTENTS Volume 3 - July 7, 2014 EXHIBITS Exhibit 1 - Flood Profiles Aberjona River Aberjona River North Spur Alewife Brook (Little River) Angelica Brook Assabet Branch No. 3 Assabet Branch No. 4 Assabet River Baddacook Brook Baiting Brook Bear Meadow Brook Beaver Brook 1 Beaver Brook 2 Beaver Brook 2 - Split 1 Beaver Brook 2 - Split 2 Beaver Brook 2 - Split 3 Beaver Brook 3 Beaver Brook 4 Beaver Brook 5 Beaver Dam Brook Bennetts Brook Birch Meadow Brook Black Brook Bogastow Brook - Jar Brook Bogle Brook 1 Bogle Brook 2 Boons Pond Branch Boutwell Brook Bow Brook Panels 01P 08P Panels 09P 10P Panels 11P 13P Panels 14P 15P Panels 16P 17P Panel 18P Panels 19P 38P Panels 39P 40P Panels 41P 43P Panel 44P Panels 45P 49P Panels 50P 54P Panels 55P Panels 56P Panels 57P Panels 58P 61P Panels 62P 71P Panels 72P 73P Panels 74P 82P Panels 83P 87P Panel 88P Panel 89P Panels 90P 95P Panels 96P 97P Panels 98P 103P Panel 104P Panels 105P 106P Panels 107P 108P TABLE OF CONTENTS Volume 4 - July 7, 2014 EXHIBITS continued Exhibit 1 - Flood Profiles continued Branch of Assabet River Branch of Elizabeth Brook 1 Broad Meadow Brook Brook A of Shawsheen River Brook from Waushakum Pond Butter Brook Catacoonamug Brook Charles River Cheese Cake Brook Panels 109P 110P Panel 111P Panels 112P 113P Panel 114P Panels 115P 116P Panels 117P 119P Panels 120P 121P Panels 122P 133P Panel 134P iii

6 TABLE OF CONTENTS Volume 4 continued EXHIBITS continued Exhibit 1 - Flood Profiles continued Cherry Brook Chester Brook Chicken Brook Cochituate Brook Cold Brook Cold Spring Brook Cole's Brook Collins Brook Conant Brook Concord River Content Brook - Middlesex Canal Course Brook Cow Pond Brook Cranberry Brook Cummings Brook Dakins Brook Danforth Brook Darby Brook Davis Brook Dirty Meadow Brook Dopping Brook Dudley Brook / Tributary A to Dudley Brook East Outlet Elizabeth Brook 1 Elizabeth Brook 2 Elm Brook Farley Brook Farley Brook Split 1 Farrar Pond Brook Fort Meadow Brook Panels 135P 137P Panels 138P 141P Panels 142P 145P Panel 146P Panel 147P Panels 148P 151P Panel 152P Panel 153P Panels 154P 157P Panels 158P 164P Panels 165P 167P Panel 168P Panels 169P 171P Panels 172P 173P Panels 174P 175P Panel 176P Panels 177P 180P Panels 181P 182P Panels 183P 184P Panel 185P Panels 186P 187P Panels 188P 191P Panels 192P 193P Panels 194P 197P Panels 198P 203P Panels 204P 206P Panels 207P 208P Panels 209P Panels 210P 211P Panels 212P 217P TABLE OF CONTENTS Volume 5 - July 7, 2014 EXHIBITS continued Exhibit 1 - Flood Profiles continued Fort Pond Brook Fort Pond Brook Branch 1 Fort Pond Brook Branch 2 Grassy Pond Brook Graves Pond Brook Panels 218P 225P Panel 226P Panel 227P Panels 228P 229P Panel 230P iv

7 TABLE OF CONTENTS Volume 5 continued EXHIBITS continued Exhibit 1 - Flood Profiles continued Great Road Tributary Greens Brook Guggins Brook Gumpas Pond Brook Hales Brook Halls Brook Hayward Brook Heath Brook Heath Hen Meadow Brook Heath Hen Meadow Brook Split Hobbs Brook 1 Hobbs Brook 2 Hog Brook Hop Brook Horn Pond Brook / Fowle Brook Inch Brook Ipswich River James Brook Jenny Dugan Brook Jones Brook Kiln Brook King Street Tributary Landham - Allowance Brook Lawrence Brook Little Brook Locke Brook Lower Spot Pond Brook Lubbers Brook Malden River Maple Meadow Brook Marginal Brook Marshall Brook Martins Brook Panel 231P Panels 232P 233P Panels 234P 236P Panel 237P Panels 238P 239P Panels 240P 242P Panels 243P 244P Panels 245P 246P Panels 271P 248P Panels 249P Panels 250P 251P Panels 252P 253P Panels 254P 255P Panels 256P 260P Panels 261P 263P Panel 264P Panels 265P 270P Panels 271P 278P Panels 279P 280P Panels 281P 282P Panels 283P 284P Panels 285P 286P Panels 287P 291P Panels 292P 294P Panel 295P Panels 296P 297P Panel 298P Panels 299P 304P Panels 305P 307P Panels 308P 310P Panel 311P Panels 312P 314P Panels 315P 317P TABLE OF CONTENTS Volume 6 - July 7, 2014 EXHIBITS continued Exhibit 1 - Flood Profiles continued Martins Pond Brook Mascuppic Brook Mason Brook Meadow Brook Panels 318P 319P Panels 320P 321P Panels 322P 325P Panels 326P 327P v

8 TABLE OF CONTENTS Volume 6 continued EXHIBITS continued Exhibit 1 - Flood Profiles continued Meadow River Branch Merrimack River Mill Brook 1 Mill Brook 2 Mill Brook 3 Mill Pond Tributary Mill River Mineway Brook Mongo Brook Morse Brook Mowry Brook Mud Pond Brook Muddy Brook Mulpus Brook Munroe Brook Mystic River Nagog Brook Nashoba Brook Nashua River Nissitissit River Nonacoicus Brook 1 Nonacoicus Brook 2 North Lexington Brook Pages Brook Pages Brook Branch Pantry Brook Pearl Hill Brook Peppermint Brook Pine Brook Pole Brook Pratts Brook Putnam Brook Reedy Meadow Brook Panels 328P 329P Panels 330P 332P Panels 333P 335P Panels 336P 337P Panels 338P 341P Panels 342P 343P Panels 344P 346P Panels 347P 352P Panels 353P 354P Panel 355P Panels 356P 357P Panel 358P Panel 359P Panels 360P 368P Panels 369P 371P Panels 372P 374P Panels 375P 377P Panels 378P 381P Panels 382P 389P Panels 390P 392P Panels 393P 394P Panel 395P Panels 396P 398P Panels 399P 401P Panel 402P Panels 403P 405P Panels 406P 409P Panel 410P Panel 411P Panels 412P 415P Panels 416P Panels 417P Panels 418P 420P TABLE OF CONTENTS Volume 7 - July 7, 2014 EXHIBITS continued Exhibit 1 - Flood Profiles continued Reservoir No. 1 - North Branch and Reservoir No. 3 Richardson Brook River Meadow Brook Run Brook Panels 421P 422P Panels 423P 425P Panels 426P 430P Panels 431P 433P vi

9 TABLE OF CONTENTS Volume 7 EXHIBITS continued Exhibit 1 - Flood Profiles continued Salmon Brook Sandy Brook Saugus River Saunders Brook Sawmill Brook 1 Sawmill Brook 2 Schneider Brook Shakers Glen Brook Shawsheen River Skug River Snake Brook South Meadow Brook - Paul Brook Spencer Brook Spring Brook Squannacook River Stony Brook Stony Brook 1 Stony Brook 2 Strong Water Brook Sudbury River Sutton Brook Sweetwater Brook Tadmuck Brook Tadmuck Swamp Brook Panels 434P 436P Panels 437P 438P Panels 439P 443P Panel 444P Panels 445P 446P Panel 447P Panels 448P 449P Panel 450P Panels 451P 457P Panels 458P 459P Panels 460P 461P Panels 462P 463P Panel 464P 467P Panels 468P 470P Panels 471P 477P Panels 478P 479P Panels 480P 494P Panels 495P 501P Panels 502P 503P Panels 504P 513P Panels 514P 515P Panel 516P Panels 517P 518P Panel 519P TABLE OF CONTENTS Volume 8 - July 7, 2014 EXHIBITS continued Exhibit 1 - Flood Profiles continued Taylor Brook Tributary 1 to Cole s Brook Tributary 1 to Sudbury River Tributary 2 to Assabet River Tributary 2 to Tributary 1 to Cole s Brook Tributary 3 to Bogle Brook 2 Tributary 4 to Bogle Brook 2 Tributary A to Cold Brook Tributary A to Course Brook Tributary A to Hop Brook Tributary A to Pantry Brook Tributary A to Squannacook River Tributary B to Hop Brook Panel 520P Panel 521P Panel 522P Panel 523P Panel 524P Panel 525P Panel 526P Panels 527P 529P Panel 530P Panels 531P 532P Panels 533P 534P Panels 535P 536P Panel 537P vii

10 TABLE OF CONTENTS Volume 8 continued EXHIBITS continued Exhibit 1 - Flood Profiles continued Tributary B to Squannacook River Tributary B to Vine Brook Tributary C to Vine Brook Tributary to Beaver Brook 3 Tributary to Cold Spring Brook Tributary to Indian Brook Tributary to Martins Brook Tributary to Mill Brook Tributary to Nonacoicus Brook 1/Long Pond Brook Tributary to Waushakum Pond Trout Brook Trout Brook 1 Trout Brook 2 Trull Brook Trull Brook Tributary Unkety Brook Valley Pond Varnum Brook Vine Brook Walker Brook 1 Walker Brook 2 Walker Brook 3 Walkers Brook Wellington Brook West Chester Brook Whitehall Brook Willard Brook Winthrop Canal Witch Brook Panels 538P 539P Panels 540P 541P Panels 542P 543P Panel 544P Panels 545P 546P Panel 547P Panel 548P Panels 549P 552P Panels 553P 557P Panels 558P 559P Panels 560P 561P Panel 562P Panels 563P 565P Panels 566P 571P Panels 572P 573P Panels 574P 576P Panel 577P Panels 578P 581P Panels 582P 588P Panels 589P 591P Panels 592P 595P Panels 596P 598P Panels 599P 602P Panel 603P Panels 604P 606P Panels 607P 609P Panels 610P 611P Panels 612P 613P Panels 614P 615P Exhibit 2 - Flood Insurance Rate Map Index Flood Insurance Rate Map viii

11 FEDERAL EMERGENCY MANAGEMENT AGENCY RESERVOIR NO. 1 - NORTH BRANCH AND RESERVOIR NO % ANNUAL CHANCE BACKWATER FROM SUDBURY RIVER TO BE SHOWN SEPARATELY RESERVOIR NO. 1 - NORTH BRANCH STREAM DISTANCE IN FEET ABOVE RESERVOIR NO. 1 DAM 421P RESERVOIR NO. 1 DAM SALEM END ROAD WORCESTER ROAD (STATE ROUTE 9) RAILROAD (INTERSTATE 90) MASSACHUSETTS TURNPIKE THE PROFILE IS TOO CLOSE TO THE 1% ANNUAL CHANCE ELEVATION RESERVOIR NO. 3 CONFLUENCE OF ANGELICA BROOK RESERVOIR NO. 3 DAM 145

12 FEDERAL EMERGENCY MANAGEMENT AGENCY RESERVOIR NO. 1 - NORTH BRANCH AND RESERVOIR NO STREAM DISTANCE IN FEET ABOVE RESERVOIR NO. 1 DAM 422P PLEASANT STREET COUNTY BOUNDARY

13 FEDERAL EMERGENCY MANAGEMENT AGENCY RICHARDSON BROOK % ANNUAL CHANCE BACKWATER FROM MERRIMACK RIVER PROFILE 110 IS TOO CLOSE TO THE 1% ANNUAL CHANCE 110 FLOOD ELEVATION TO BE SHOWN SEPARATELY E A B C D STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 423P DAM CONFLUENCE WITH MERRIMACK RIVER METHUEN STREET CONFLUENCE OF TROUT BROOK 1 MERRIMAC AVENUE (STATE ROUTE 110) CRANBERRY ROAD

14 FEDERAL EMERGENCY MANAGEMENT AGENCY RICHARDSON BROOK F G H STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER P BLACKSMITH ROAD LOON HILL ROAD

15 FEDERAL EMERGENCY MANAGEMENT AGENCY RICHARDSON BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 425P STATE ROUTE 113 (BROADWAY STREET) LIMIT OF DETAILED STUDY I

24 STATE BOUNDARY MAIN STREET SALMON BROOK A ABANDONED RAILROAD B C D E F G H I STREAM DISTANCE IN FEET ABOVE STATE BOUNDARY* *STATE BOUNDARY IS APPROXIMATELY 12,400 FEET DOWNSTREAM OF MAIN STREET J K L FEDERAL EMERGENCY MANAGEMENT AGENCY 434P

25 LOWER MASSAPOAG POND MASSAPOAG POND STATE ROUTE MASSAPOAG POND DAM SALMON BROOK CULVERT M N O P Q R S T U V STREAM DISTANCE IN FEET ABOVE STATE BOUNDARY* *STATE BOUNDARY IS APPROXIMATELY 12,400 FEET DOWNSTREAM OF MAIN STREET W FEDERAL EMERGENCY MANAGEMENT AGENCY 435P

26 MASSAPOAG POND LIMIT OF DETAILED STUDY SALMON BROOK STREAM DISTANCE IN FEET ABOVE STATE BOUNDARY* *STATE BOUNDARY IS APPROXIMATELY 12,400 FEET DOWNSTREAM OF MAIN STREET FEDERAL EMERGENCY MANAGEMENT AGENCY 436P

27 FEDERAL EMERGENCY MANAGEMENT AGENCY SANDY BROOK 1% ANNUAL CHANCE BACKWATER FROM VINE BROOK CULVERT F G H A B C D E STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH VINE BROOK 437P CONFLUENCE WITH VINE BROOK SANDY BROOK ROAD HILLTOP DRIVE MAUD GRAHAM CIRCLE MAUD GRAHAM CIRCLE

28 FEDERAL EMERGENCY MANAGEMENT AGENCY SANDY BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH VINE BROOK 438P BEDFORD STREET RAYMOND ROAD EXTENSION LIMIT OF DETAILED STUDY I J K L

29 FEDERAL EMERGENCY MANAGEMENT AGENCY SAUGUS RIVER D A B C STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,020 FEET DOWNSTREAM OF WATER STREET 439P COUNTY BOUNDARY CONFLUENCE OF MILL RIVER WATER STREET STATE ROUTE 129 AVENUE TRIBUTARY CONFLUENCE OF MONTROSE

30 DAM SALEM STREET INTERSTATE 95 ACCESS ROAD SAUGUS RIVER E F G H I J STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,020 FEET DOWNSTREAM OF WATER STREET FEDERAL EMERGENCY MANAGEMENT AGENCY 440P

31 SAUGUS RIVER STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,020 FEET DOWNSTREAM OF WATER STREET FEDERAL EMERGENCY MANAGEMENT AGENCY 441P

32 85 85 RAILROAD INTERSTATE 95 SAUGUS RIVER STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,020 FEET DOWNSTREAM OF WATER STREET FEDERAL EMERGENCY MANAGEMENT AGENCY 442P

33 FEDERAL EMERGENCY MANAGEMENT AGENCY SAUGUS RIVER STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,020 FEET DOWNSTREAM OF WATER STREET 443P INTERSTATE 95 ON RAMP VERNON STREET CONFLUENCE OF READING DRAINAGE CANAL LOWELL STREET/STATE ROUTE 129 CONFLUENCE OF LAKE QUANNAPOWITT DAM

34 FEDERAL EMERGENCY MANAGEMENT AGENCY SAUNDERS BROOK 1% ANNUAL CHANCE BACKWATER FROM SHAWSHEEN RIVER A B C STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 444P CONFLUENCE WITH SHAWSHEEN RIVER LIMIT OF DETAILED STUDY

35 FEDERAL EMERGENCY MANAGEMENT AGENCY SAWMILL BROOK CULVERT E F A B C D STREAM DISTANCE IN FEET ABOVE DOWNSTREAM SIDE OF NOAH CLAPP DAM 445P LIMIT OF DETAILED STUDY NOAH CLAPP DAM MILL STREET

36 FEDERAL EMERGENCY MANAGEMENT AGENCY SAWMILL BROOK STREAM DISTANCE IN FEET ABOVE DOWNSTREAM SIDE OF NOAH CLAPP DAM 446P LIMIT OF DETAILED STUDY G H

38 FEDERAL EMERGENCY MANAGEMENT AGENCY SCHNEIDER BROOK 1% ANNUAL CHANCE BACKWATER FROM ABERJONA RIVER CULVERT A B C STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ABERJONA RIVER 448P CONFLUENCE WITH ABERJONA RIVER ACCESS ROAD ACCESS ROAD CULVERT

39 FEDERAL EMERGENCY MANAGEMENT AGENCY SCHNEIDER BROOK I J G D E F H STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ABERJONA RIVER 449P WASHINGTON STREET SALEM STREET FORBES STREET ACCESS ROAD CULVERT CULVERT CULVERT CULVERTS ACCESS ROAD LIMIT OF DETAILED STUDY CULVERT

40 FEDERAL EMERGENCY MANAGEMENT AGENCY SHAKERS GLEN BROOK CULVERT A B C D E F STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH FOWLE BROOK 450P CONFLUENCE WITH FOWLE BROOK FOOTBRIDGE TOTMAN ROAD LEXINGTON STREET CAMBRIDGE STREET US ROUTE 3 RUSSEL STREET ACCESS DRIVEWAY LIMIT OF DETAILED STUDY CULVERT CULVERT CULVERT CULVERT

41 FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS SHAWSHEEN RIVER D A B C STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE P COUNTY BOUNDARY INTERSTATE ROUTE 93 BRIDGE (APPROXIMATE LOCATION) CONFLUENCE OF BROOK A OF SHAWSHEEN RIVER SAUNDERS BROOK CONFLUENCE OF

42 FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS SHAWSHEEN RIVER L M F H J E G I K STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE P CONFLUENCE OF SUTTON BROOK BARRY DRIVE BRIDGE MILL STREET BRIDGE STRONG WATER BROOK CONFLUENCE OF BRIDGE STREET BRIDGE MAIN STREET BRIDGE STATE ROUTE 38 CONFLUENCE OF HEATH BROOK

43 FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS SHAWSHEEN RIVER Y 75 X W Z AA 70 S N O P Q R T U V STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE P CONFLUENCE OF MUD POND BROOK CONFLUENCE OF CONTENT BROOK GEORGE BROWN STREET SALEM ROAD STATE ROUTE 129 RAILROAD 70

44 FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS SHAWSHEEN RIVER AG AE AF AB AC AD STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE P CONFLUENCE OF JONES BROOK CONFLUENCE OF WEBB BROOK STATE ROUTE 3A BOSTON ROAD

45 MIDDLESEX TURNPIKE SHAWSHEEN RIVER AH AI AJ STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE 93 AK FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS 455P

46 FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS SHAWSHEEN RIVER AX BB AW AY AZ BA AN AM AR AL AO AP AQ AS AT AU AV STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE P US ROUTE 3 (NORTHBOUND) US ROUTE 3 (SOUTHBOUND) CONFLUENCE OF VINE BROOK BURLINGTON ROAD STATE ROUTE 62 CONFLUENCE OF SPRING BROOK PAGE ROAD CONFLUENCE OF ELM BROOK THE GREAT ROAD STATE ROUTE 4 BRIDGE STREET

47 FEDERAL EMERGENCY MANAGEMENT AGENCY ALL JURISDICTIONS SHAWSHEEN RIVER BE BG BJ BL BC BD BF BH BI BK BM STREAM DISTANCE IN FEET ABOVE COUNTY BOUNDARY* *COUNTY BOUNDARY IS APPROXIMATELY 1,250 FEET DOWNSTREAM OF INTERSTATE P ABANDONED RAILROAD SUMMER STREET NORTH LEXINGTON BROOK CONFLUENCE OF HANSOOM AFB ACCESS ROAD LIMIT OF DETAILED STUDY

48 FEDERAL EMERGENCY MANAGEMENT AGENCY SKUG RIVER E F A B C D STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MARTINS POND 458P CONFLUENCE WITH MARTINS POND MAIN STREET STATE ROUTE 28 CENTRAL STREET CULVERT

49 FEDERAL EMERGENCY MANAGEMENT AGENCY SKUG RIVER STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MARTINS POND 459P COUNTY BOUNDARY G H I

52 FEDERAL EMERGENCY MANAGEMENT AGENCY SOUTH MEADOW BROOK - PAUL BROOK SOUTH MEADOW BROOK PAUL BROOK CULVERT CULVERT CULVERT CULVERT F G B C D E STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 462P LIMITED OF DETAILED STUDY RAILROAD NEEDHAM STREET WINCHESTER STREET UPLAND AVENUE DEDHAM STREET MILDRED ROAD CULVERT A

53 FEDERAL EMERGENCY MANAGEMENT AGENCY SOUTH MEADOW BROOK - PAUL BROOK CULVERTS CULVERT CULVERT H I J STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 463P PARKER STREET GREAT MEADOW ROAD OLD FIELD ROAD HAYNES ROAD HAGEN ROAD LIMITED OF DETAILED STUDY CULVERT

58 FEDERAL EMERGENCY MANAGEMENT AGENCY SPRING BROOK 1% ANNUAL CHANCE BACKWATER FROM SHAWSHEEN RIVER A B C D E F G STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 468P CONFLUENCE WITH SHAWSHEEN RIVER OLD BILLERICA ROAD STATE ROUTE 62 ABANDONED BRIDGE

59 ALCOTT STREET SPRING BROOK CULVERT H I J STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER K L FEDERAL EMERGENCY MANAGEMENT AGENCY 469P

60 FEDERAL EMERGENCY MANAGEMENT AGENCY SPRING BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 470P LIMIT OF DETAILED STUDY 120 M N O 9600

61 1% ANNUAL CHANCE BACKWATER FROM NASHUA RIVER CONFLUENCE WITH NASHUA RIVER SQUANNACOOK RIVER STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER A B FEDERAL EMERGENCY MANAGEMENT AGENCY 471P

62 FEDERAL EMERGENCY MANAGEMENT AGENCY SQUANNACOOK RIVER G C D E F STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER 472P DAM GROTON ROAD STATE ROUTE 225 DAM

63 FEDERAL EMERGENCY MANAGEMENT AGENCY SQUANNACOOK RIVER STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER 473P CONFLUENCE OF WITCH BROOK H I J K

64 HARBOR POND SOUTH STREET DAM SQUANNACOOK RIVER L M N O P STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER FEDERAL EMERGENCY MANAGEMENT AGENCY 474P

65 FEDERAL EMERGENCY MANAGEMENT AGENCY SQUANNACOOK RIVER T Q R S STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER 475P BRIDGE REMAINS ELM STREET STATE ROUTE 13 DAM RAILROAD MAIN STREET/STATE ROUTE 119 CONFLUENCE OF TRIBUTARY A TO SQUANNACOOK RIVER

66 FEDERAL EMERGENCY MANAGEMENT AGENCY SQUANNACOOK RIVER W X U V STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER 476P CONFLUENCE OF TRIBUTARY B TO SQUANNACOOK RIVER TURNPIKE ROAD

67 FEDERAL EMERGENCY MANAGEMENT AGENCY SQUANNACOOK RIVER Y Z STREAM DISTANCE IN FEET ABOVE CONFLUNCE WITH NASHUA RIVER 477P RAILROAD DAM CANAL STREET CONFLUENCE OF WALKER BROOK 2

70 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK 1 1% ANNUAL CHANCE BACKWATER FROM CHARLES RIVER STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 480P MOUTH AT CHARLES RIVER WEIR AT SOUTH STREET

71 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 481P STONY BROOK RESERVOIR DAM

72 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 482P STONY BROOK DAM

73 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK CULVERT D 60 A B C STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 483P RAILROAD BOSTON POST ROAD US ROUTE 20

74 STONY BROOK E F G STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER RAILROAD H I RAILROAD FEDERAL EMERGENCY MANAGEMENT AGENCY 484P

75 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 485P CONFLUENCE OF HOBBS BROOK 1 DUMP ROAD CHURCH STREET Q J K L M N O P

76 STONY BROOK R STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER S FEDERAL EMERGENCY MANAGEMENT AGENCY 486P

77 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 487P VILES STREET CONFLUENCE OF CHERRY BROOK RAILROAD Z T U V W X Y

78 CONANT ROAD STONY BROOK AA AB AC AD STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER AE FEDERAL EMERGENCY MANAGEMENT AGENCY 488P

79 MERRIAM STREET STONY BROOK AF AG AH AI STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER AJ FEDERAL EMERGENCY MANAGEMENT AGENCY 489P

80 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK AK AL AM AN STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH CHARLES RIVER 490P NORTH AVENUE STATE ROUTE 117 LIMIT OF DETAILED STUDY

81 LIMIT OF DETAILED STUDY TOWER ROAD STONY BROOK AO AP AQ STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 960 FEET DOWNSTREAM OF TOWER ROAD FEDERAL EMERGENCY MANAGEMENT AGENCY 491P

82 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK AV AW AR AS AT AU STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 960 FEET DOWNSTREAM OF TOWER ROAD 492P PIERCE HILL ROAD LINCOLN ROAD BALLFIELD ROAD PRIVATE DRIVE PRIVATE DRIVE

83 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK AX AY AZ BA STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 960 FEET DOWNSTREAM OF TOWER ROAD 493P PRIVATE DRIVE DIRT ROAD WOODEN FOOTBRIDGE STONE CULVERT STONE CULVERT

84 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK BB BC BD STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 960 FEET DOWNSTREAM OF TOWER ROAD 494P SANDY POND ROAD WIER LIMIT OF DETAILED STUDY

85 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK % ANNUAL CHANCE BACKWATER FROM MERRIMACK RIVER H B A C D E F G STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 495P CONFLUENCE OF MERRIMACK RIVER RAILROAD RAILROAD MIDDLESEX STREET PRINCETON STREET STATE ROUTE 3A RAILROAD

86 RAILROAD STONY BROOK CULVERT I J STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER K FEDERAL EMERGENCY MANAGEMENT AGENCY 496P

87 RAILROAD US ROUTE STONY BROOK CULVERT CULVERT L M N O P Q STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER FEDERAL EMERGENCY MANAGEMENT AGENCY 497P

88 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK CULVERT R S STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH MERRIMACK RIVER 498P MEADOWBROOK ROAD LIMIT OF DETAILED STUDY

89 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK AE AD AC U X W AA T V Y Z AB STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 2,750 FEET DOWNSTREAM OF BROOKSIDE ROAD 499P LIMIT OF DETAILED STUDY RAILROAD BROOKSIDE ROAD DAM STONY BROOK ROAD CONFLUENCE OF TADMUCK BROOK DAM DEPOT STREET PIPE SUPPORT

90 RAILROAD RIVER STREET STONY BROOK AG AF AH STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 2,750 FEET DOWNSTREAM OF BROOKSIDE ROAD AI AJ FEDERAL EMERGENCY MANAGEMENT AGENCY 500P

91 FEDERAL EMERGENCY MANAGEMENT AGENCY STONY BROOK AM AP AO AR AT AW AY BA AZ BB AK AL AN AQ AS AU AV AX STREAM DISTANCE IN FEET ABOVE LIMIT OF DETAILED STUDY* *LIMIT OF DETAILED STUDY IS APPROXIMATELY 2,750 FEET DOWNSTREAM OF BROOKSIDE ROAD 501P BROADWAY STREET DAM CONFLUENCE OF BOUTWELL BROOK RAILROAD BRIDGE STREET MILOT ROAD TOWN FARM ROAD BUILDING BUILDING BUILDING PLEASANT STREET/STATE ROUTE 225 MURRAY PRINTING COMPANY DAM CONFLUENCE OF FORGE POND

92 FEDERAL EMERGENCY MANAGEMENT AGENCY STRONG WATER BROOK CULVERT D E A B C STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 502P CONFLUENCE WITH SHAWSHEEN RIVER SHAWSHEEN STREET BRIDGE TEW-MAC AIRPORT RUNWAY

93 FEDERAL EMERGENCY MANAGEMENT AGENCY STRONG WATER BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 503P SEWER TREATMENT PLANT ROAD ABANDONED ROAD EAST STREET CART BRIDGE CONFLUENCE OF MEADOW BROOK AND MARSHALL BROOK F G H I J K

100

101

102

103

104 FEDERAL EMERGENCY MANAGEMENT AGENCY SUTTON BROOK 1% ANNUAL CHANCE BACKWATER FROM SHAWSHEEN RIVER C A B STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 514P SHAWSHEEN RIVER CONFLUENCE WITH ABANDONED RAILROAD BRIDGE SOUTH STREET CONFLUENCE WITH COLLINS BROOK

105 FEDERAL EMERGENCY MANAGEMENT AGENCY SUTTON BROOK STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH SHAWSHEEN RIVER 515P LIMIT OF DETAILED STUDY D E

106 FEDERAL EMERGENCY MANAGEMENT AGENCY SWEETWATER BROOK CULVERT CULVERT CULVERT M E D A B C F G H I J K L STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH ABERJONA RIVER 516P CONFLUENCE WITH ABERJONA RIVER TWIN CULVERTS TWIN CULVERTS KRAFT FOODS FOOTBRIDGE KRAFT FOODS ACCESS ROAD WEIR INTERSTATE 93 MAPLE STREET ACCESS ROAD FOOTBRIDGE MONTVALE AVENUE CEMETERY CROSSING 1 CEMETERY CROSSING 2 LINDENWOOD ROAD LIMIT OF DETAILED STUDY CULVERT CULVERT CULVERT CULVERT CULVERT

107 1% ANNUAL CHANCE BACKWATER FROM STONY BROOK 2 CONFLUENCE WITH STONY BROOK 2 ACCESS ROAD LOWELL ROAD ACCESS ROAD MAIN STREET TADMUCK BROOK THE PROFILE IS TOO CLOSE TO THE 180 ELEVATION TO BE SHOWN SEPARATELY A B C D E STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH STONY BROOK 2 F G H I FEDERAL EMERGENCY MANAGEMENT AGENCY 517P

108 FEDERAL EMERGENCY MANAGEMENT AGENCY TADMUCK BROOK N M Q S J K L O P R STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH STONY BROOK 2 518P TADMUCK LANE FOOTBRIDGE DANA DRIVE FAIRVIEW DRIVE TADMUCK ROAD PROVIDENCE ROAD LIMIT OF DETAILED STUDY THE PROFILE IS TOO CLOSE TO THE ELEVATION TO BE SHOWN SEPARATELY

109

NORFOLK COUNTY, MASSACHUSETTS (ALL JURISDICTIONS)

NORFOLK COUNTY, MASSACHUSETTS (ALL JURISDICTIONS) Volume 4 of 4 COMMUNITY NAME COMMUNITY NUMBER AVON, TOWN OF 250231 BELLINGHAM, TOWN OF 250232 BRAINTREE, TOWN OF 250233 BROOKLINE, TOWN OF 250234 CANTON,