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MSHA mine register by county

Mines in New Haven County, Connecticut

New Haven County, Connecticut has 81 mines on MSHA's register: 9 active, 4 intermittent, 67 abandoned. 3 miners have died and 384 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 2,218 citations.

Every mine MSHA has registered in New Haven County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in New Haven County →

Mines on register
81
Active
9
Fatalities on record
3
Citations issued
2,218
0 underground · 79 surface · 2 facilities 0 coal · 81 metal and non-metal 4 intermittent 67 abandoned 384 reported accidents, 1983–2026
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
CHERRY HILL CONSTRUCTION INC 10 0 0
HAYNES MATERIALS COMPANY 3 0 1
Bart LoRusso & Sons, Inc. 3 0 0
O & G INDUSTRIES INC 3 1 0
Tilcon Connecticut Inc 2 2 1
County Wide Construction 2 0 0
LARS Realty LLC 2 0 0
RD Scinto, Inc. 2 0 0
WSS HOLDINGS LLC 2 2 0
THE YORK HILL TRAP ROCK QUARRY COMPANY, INC. 1 1 1
Mines in New Haven County81 on register
  1. North Branford Quarry
    Surface metal/non-metal · Tilcon Connecticut Inc · MSHA ID 0600012
    Active
  2. YORK HILL MINE & MILL
    Surface metal/non-metal · THE YORK HILL TRAP ROCK QUARRY COMPANY, INC. · MSHA ID 0600026
    Active
  3. Wallingford Quarry
    Surface metal/non-metal · Tilcon Connecticut Inc · MSHA ID 0600013
    Active
  4. Quarry No 2 Southbury
    Surface metal/non-metal · O & G Industries Inc · MSHA ID 0600295
    Active
  5. STONY CREEK
    Surface metal/non-metal · STONY CREEK QUARRY CORPORATION · MSHA ID 0600005
    Active
  6. WATERBURY QUARRY
    Surface metal/non-metal · WSS HOLDINGS LLC · MSHA ID 0600761
    Active
  7. DEFEO PORTABLE PLANT
    Surface metal/non-metal · Defeo Materials LLC · MSHA ID 0600848
    Active
  8. BEACON FALLS QUARRY
    Surface metal/non-metal · WSS HOLDINGS LLC · MSHA ID 0600850
    Active
  9. SPLIT ROCK
    Surface metal/non-metal · F&F MATERIALS, LLC · MSHA ID 0600853
    Active
  10. HAYNES AGGREGATES - SEYMOUR LLC
    Surface metal/non-metal · HAYNES MATERIALS COMPANY · MSHA ID 0600763
    Intermittent
  11. Haynes Aggregates - Naugatuck, LLC
    Surface metal/non-metal · Haynes Materials Company · MSHA ID 0600555
    Abandoned
  12. Oxford Town Center LLC
    Surface metal/non-metal · Haynes Materials Company · MSHA ID 0600681
    Abandoned
  13. East Haven Trap Rock Quarry LLC
    Surface metal/non-metal · East Haven Trap Rock Quarry LLC · MSHA ID 0600779
    Abandoned
  14. Oak Ledge Properties LLC
    Surface metal/non-metal · Northeast Site Development LLC · MSHA ID 0600712
    Abandoned
  15. BLUESTONE QUARRY
    Surface metal/non-metal · Hychko Construction Company · MSHA ID 0600634
    Abandoned
  16. Bart Lo Russo & Sons Inc
    Surface metal/non-metal · Bart Lo Russo & Sons Inc · MSHA ID 0600618
    Abandoned
  17. Blue Rock Portable
    Surface metal/non-metal · Blue Rock Construction LLC · MSHA ID 0600655
    Abandoned
  18. Capital Heavy Hauling LLC
    Surface metal/non-metal · Capital Heavy Hauling LLC · MSHA ID 0600762
    Abandoned
  19. O & G PROSPECT QUARRY #3
    Surface metal/non-metal · O & G INDUSTRIES INC · MSHA ID 0600259
    Intermittent
  20. WATERVILLE MATERIALS
    Surface metal/non-metal · LEVEL DEVELOPMENT CORPORATION · MSHA ID 0600791
    Temporarily Idled
  21. McCloskey R155(SC24)S/N-70718
    Surface metal/non-metal · Cherry Hill Construction Inc · MSHA ID 0600692
    Abandoned
  22. Beacon Falls Wash Plant #2
    Surface metal/non-metal · O & G Industries Inc · MSHA ID 0600367
    Abandoned
  23. Watertown Ave
    Surface metal/non-metal · LARS Realty LLC · MSHA ID 0600758
    Abandoned
  24. Scinto Portable Plant One
    Surface metal/non-metal · R D Scinto · MSHA ID 0600784
    Abandoned
  25. RICE PIT
    Surface metal/non-metal · Thomas Keegan & Sons Inc · MSHA ID 0600226
    Abandoned
  26. VALLEY SAND & GRAVEL CORP.
    Facility metal/non-metal · Valley Sand & Gravel Corp · MSHA ID 0600342
    Abandoned
  27. ORONOQUE PIT AND MILL
    Surface metal/non-metal · Beard Sand & Gravel Company Inc · MSHA ID 0600201
    Abandoned
  28. SECONDARY PLANT
    Surface metal/non-metal · Cocchiola Paving Inc · MSHA ID 0600686
    Abandoned
  29. CEDARAPIDS 1
    Surface metal/non-metal · Sweeney Excavation Inc · MSHA ID 0600666
    Abandoned
  30. D And J Quarry
    Surface metal/non-metal · D & J Quarry Products Inc · MSHA ID 0600587
    Abandoned
  31. Metso HP300(SC19)S/N-72775
    Surface metal/non-metal · Cherry Hill Construction Inc · MSHA ID 0600753
    Abandoned
  32. PEARL LAKE ROAD PIT & MILL
    Surface metal/non-metal · Tony Calabro Sons Inc · MSHA ID 0600200
    Intermittent
  33. PORTABLE UNIT
    Surface metal/non-metal · Empire Paving Inc · MSHA ID 0600630
    Abandoned
  34. Oxbury LLC
    Surface metal/non-metal · Oxbury LLC · MSHA ID 0600771
    Abandoned
  35. Portable Crusher
    Surface metal/non-metal · Blakeman Construction LLC · MSHA ID 0600749
    Abandoned
  36. GOLIATH-7
    Surface metal/non-metal · Guerrera Construction Company Inc · MSHA ID 0600676
    Intermittent
  37. McCloskey R105(SC25)S/N-70845
    Surface metal/non-metal · Cherry Hill Construction Inc · MSHA ID 0600756
    Abandoned
  38. Riverview
    Surface metal/non-metal · LARS Realty LLC · MSHA ID 0600759
    Abandoned
  39. G W MATON MATERIALS
    Surface metal/non-metal · Greg Maton · MSHA ID 0600684
    Abandoned
  40. SEYMOUR PIT
    Surface metal/non-metal · Ed Mc Manus & Sons Construction Company Inc · MSHA ID 0600679
    Abandoned
  41. H. J. KELLY ASSC., INC.
    Surface metal/non-metal · H J Kelly Associates Inc · MSHA ID 0600640
    Abandoned
  42. Neubig Robert Portable #1
    Surface metal/non-metal · Neuco Corp · MSHA ID 0600787
    Abandoned
  43. Fountain Lakes Quarry
    Surface metal/non-metal · RD Scinto, Inc. · MSHA ID 0600788
    Abandoned
  44. KPI-JCI K300+6203CC(SC26)
    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600834
    Abandoned
  45. LOKOTRACK #1
    Surface metal/non-metal · BART LORUSSO & SONS INC · MSHA ID 0600709
    Abandoned
  46. Metso LT106(SC22)S/N-77205
    Surface metal/non-metal · Cherry Hill Construction Company Inc · MSHA ID 0600754
    Abandoned
  47. MOLSICK PIT & PLANT
    Surface metal/non-metal · Molsick Sand & Gravel Inc · MSHA ID 0600569
    Abandoned
  48. SEYMOUR CT
    Surface metal/non-metal · BOVE BROTHERS LLC · MSHA ID 0600849
    Abandoned
  49. MCCLOSKEY R155(SC40)S/N-82130
    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600833
    Abandoned
  50. METSO LT106(SC33)S/N-78420
    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600832
    Abandoned
  51. Metso HP200(SC21)S/N-76995
    Surface metal/non-metal · Cherry Hill Construction Company Inc · MSHA ID 0600755
    Abandoned
  52. METSO LT106(SC34)S/N-78238
    Surface metal/non-metal · CHERRY HILL CONSTRUCTION INC · MSHA ID 0600831
    Abandoned
  53. LoRusso & Sons, Inc.
    Surface metal/non-metal · Bart LoRusso & Sons, Inc. · MSHA ID 0600740
    Abandoned
  54. SC 8 Cedar Rapids
    Surface metal/non-metal · Cherry Hill Construction Co. Inc · MSHA ID 0600809
    Abandoned
  55. C & C Pit & Plant
    Surface metal/non-metal · C & C Materials Inc · MSHA ID 0600581
    Abandoned
  56. C & S Stone
    Surface metal/non-metal · C & S Stone · MSHA ID 0600638
    Abandoned
  57. CALABRESE CONTRACTING CO., INC.
    Surface metal/non-metal · Calabrese Construction Company Inc · MSHA ID 0600617
    Abandoned
  58. Cheshire North Haven Pit & Plant
    Surface metal/non-metal · Valley Sand & Gravel Corp · MSHA ID 0600577
    Abandoned
  59. Cheshire Pit
    Surface metal/non-metal · Oleski Construction Inc · MSHA ID 0600574
    Abandoned
  60. County Wide Construction Cheshire
    Surface metal/non-metal · County Wide Construction · MSHA ID 0600619
    Abandoned
  61. County Wide Construction Southington
    Surface metal/non-metal · County Wide Construction · MSHA ID 0600620
    Abandoned
  62. Derby Sand And Gravel Company
    Surface metal/non-metal · A W Beard Construction Corp · MSHA ID 0600376
    Abandoned
  63. Downs Pit And Mill
    Surface metal/non-metal · Frank H Downs · MSHA ID 0600344
    Abandoned
  64. Falls Road Pit & Plant
    Surface metal/non-metal · Roma Construction Company · MSHA ID 0600565
    Abandoned
  65. Finco Mine & Mill
    Surface metal/non-metal · Finco Corp · MSHA ID 0600244
    Abandoned
  66. H S G
    Surface metal/non-metal · H S G Inc · MSHA ID 0600657
    Abandoned
  67. Hamden Mill
    Facility metal/non-metal · Farnham Crushed Stone Inc · MSHA ID 0600007
    Abandoned
  68. Hamden Sand And Gravel
    Surface metal/non-metal · Hamden Sand & Gravel Company · MSHA ID 0600227
    Abandoned
  69. Jackson St.
    Surface metal/non-metal · Metcalf Paving Inc. · MSHA ID 0600685
    Abandoned
  70. Kettletown Road Pit
    Surface metal/non-metal · Kettletown Road Sand & Gravel Company · MSHA ID 0600558
    Abandoned
  71. Mesa Pit/Plant
    Surface metal/non-metal · Mesa Construction Co Inc · MSHA ID 0600566
    Abandoned
  72. Mitchell Pit
    Surface metal/non-metal · Gokey Sand & Gravel Company · MSHA ID 0600548
    Abandoned
  73. NEW HAVEN PLANT
    Surface metal/non-metal · Mls Construction Llc · MSHA ID 0600646
    Abandoned
  74. Nickelmine Brook Associates
    Surface metal/non-metal · Nickelmine Brook Associates · MSHA ID 0600621
    Abandoned
  75. Northford Pit & Plant
    Surface metal/non-metal · Northford Trucking & Excavating Inc · MSHA ID 0600567
    Abandoned
  76. Rimmon Road Pit
    Surface metal/non-metal · D & J Construction Company Inc · MSHA ID 0600241
    Abandoned
  77. Sanitary Land Fill
    Surface metal/non-metal · Town Of Cheshire · MSHA ID 0600556
    Abandoned
  78. Seymour Pit & Plant
    Surface metal/non-metal · Town Of Seymour · MSHA ID 0600568
    Abandoned
  79. TOELLES RD. SAND AND GRAVEL
    Surface metal/non-metal · Toelles Road Sand & Gravel Company · MSHA ID 0600616
    Abandoned
  80. Waterbury Rock Incorporated
    Surface metal/non-metal · Waterbury Rock Inc · MSHA ID 0600210
    Abandoned
  81. Wheeler Pit
    Surface metal/non-metal · Melvin S Wheeler Inc · MSHA ID 0600546
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in ConnecticutAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.