Data / Mines / Connecticut / Sand and gravel mines
Sand and gravel mines in Connecticut: 47 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 47 open sand and gravel mines in Connecticut, run by 35 operators and employing 160 people. Since January 1, 2022 its inspectors issued 794 citations and orders there with $270,469 in proposed penalties, and operators reported 10 injury or illness cases. The operators with the most open mines are Rawson Materials; Tilcon Connecticut Inc.; Adelman Sand and Gravel. Data from MSHA, November 6, 2026.
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- Open mines
- 47
- Operators
- 35
- Employees
- 160
- Intermittent
- 28
- Active
- 18
- Temporarily Idled
- 1
- Mines run by individuals, counted and not listed
- 5
- Citations and orders since January 1, 2022
- 794
- Significant and substantial
- 131 (16.5%)
- Closure orders
- 14
- High negligence or reckless
- 40
- Proposed penalties
- $270,469
- Amount paid so far
- $235,599
- Inspections
- 366
- Inspector hours on site
- 2,276
- Citations per inspection
- 2.17 (all mines 2.30)
- Accident reports
- 10
- Injury and illness cases
- 10
- Fatalities
- 0
- Latest MSHA record
- September 23, 2026
Operators with the most open mines in Connecticut
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
Operators with the most citations in Connecticut
Citations and orders issued since January 1, 2022 at their open mines here.
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Windham Materials LLC | Windham Materials LLC | Windham County, CT | Construction sand and gravel | 3 | 82 |
| Desiato Pit and Mill | Desiato Sand & Gravel Corp | Tolland County, CT | Construction sand and gravel | 5 | 75 |
| Barnes Concrete Co Inc | Barnes Concrete Company Inc | Windham County, CT | Construction sand and gravel | 4 | 60 |
| Hain Materials Corp | Hain Materials Corp | Windham County, CT | Construction sand and gravel | 6 | 57 |
| Segalla Sand & Gravel, Inc | Segalla Sand & Gravel, Inc. | Litchfield County, CT | Construction sand and gravel | 6 | 46 |
| Middletown | JDG Materials LLC | Middlesex County, CT | Construction sand and gravel | 4 | 35 |
| East Canaan Pit & Mill | Laurelbrook Natural Resources, LLC | Litchfield County, CT | Construction sand and gravel | 6 | 28 |
| Nus | Hubert E Butler Construction Company LLC | Middlesex County, CT | Construction sand and gravel | 4 | 24 |
| McClure Sand & Gravel | McClure Construction | New London County, CT | Construction sand and gravel | 4 | 24 |
| Brickyard Pit and Mill | Dunning Industries Inc | Hartford County, CT | Construction sand and gravel | 5 | 21 |
| Rawson Materials, Plant 5 | Rawson Materials | Windham County, CT | Construction sand and gravel | 5 | 21 |
| Sammy P Inc | Sammy P Inc | Windham County, CT | Construction sand and gravel | 4 | 21 |
| Willow Spring Farm | Whittle Brothers Farm | New London County, CT | Construction sand and gravel | 4 | 21 |
| Caroline RD Pit | Adelman Sand and Gravel | New London County, CT | Construction sand and gravel | 3 | 20 |
| Plant 4, Plainfield | Rawson Materials | Windham County, CT | Construction sand and gravel | 4 | 18 |
| Rawson Plant #3 | Rawson Materials | Windham County, CT | Construction sand and gravel | 8 | 17 |
| Century Acquisitions | 21ST Century Concrete Inc | Litchfield County, CT | Construction sand and gravel | 3 | 13 |
| Andrew Ansaldi Company | Andrew Ansaldi Company | Hartford County, CT | Construction sand and gravel | 2 | 12 |
| Bogue Mill | O & G Industries Inc | Litchfield County, CT | Construction sand and gravel | 5 | 11 |
| Danielson Pit & Mill | Ernest Joly & Sons Inc | Windham County, CT | Construction sand and gravel | 5 | 10 |
| Plant 1 | Rawson Materials | Windham County, CT | Construction sand and gravel | 5 | 10 |
| Adelman Sand & Gravel Inc | Adelman Sand and Gravel | New London County, CT | Construction sand and gravel | 4 | 10 |
| Jewett City | Tilcon Connecticut Inc. | New London County, CT | Construction sand and gravel | 3 | 10 |
| Oneco Gravel LLC | Oneco Gravel LLC | Windham County, CT | Construction sand and gravel | 2 | 10 |
| Tall Pines Pit #1 | Tall Pines Land Development | Tolland County, CT | Sand, common | 1 | 9 |
| Chicken Hill | Adelman Sand and Gravel | New London County, CT | Construction sand and gravel | 4 | 8 |
| Ramp Road Plant | Canton Village Construction Inc | Hartford County, CT | Construction sand and gravel | 4 | 7 |
| Granby Notch Pit | Tilcon Connecticut Inc. | Hartford County, CT | Construction sand and gravel | 6 | 6 |
| Polinsky Farm LLC | Polinsky Farm LLC | New London County, CT | Construction sand and gravel | 3 | 6 |
| Griswold Sand & Gravel | Tilcon Connecticut Inc. | New London County, CT | Construction sand and gravel | 3 | 5 |
| Ellington Pit | Powder Hill Sand & Gravel | Tolland County, CT | Construction sand and gravel | 3 | 4 |
| Beacon Falls Wash Plant #2 | O & G Industries Inc | New Haven County, CT | Construction sand and gravel | 2 | 3 |
| Portable Crusher | Century Aggregates Inc | Litchfield County, CT | Construction sand and gravel | 2 | 3 |
| 81 Ipr | 81 Ipr LLC | Windham County, CT | Construction sand and gravel | 1 | 3 |
| Osga Pit | The Lynn Corporation | New London County, CT | Construction sand and gravel | 2 | 2 |
| Miller Brothers | Miller Bros Sand & Gravel | Windham County, CT | Construction sand and gravel | 2 | 2 |
| N.H.D. Pit | The Lynn Corporation | New London County, CT | Construction sand and gravel | 1 | 1 |
| Metso LT106 Jaw | Windham Materials LLC | New London County, CT | Construction sand and gravel | 0 | 1 |
| Geer Sand & Gravel | Geer Construction Company Inc | New London County, CT | Construction sand and gravel | 4 | 0 |
| Powerscreen Warrior 43.566616 | Tilcon Connecticut Inc. | Hartford County, CT | Construction sand and gravel | 3 | 0 |
| Waskiewicz Pit & Plant | Ed's Garage Inc | Windham County, CT | Construction sand and gravel | 1 | 0 |
| Holden Brothers LLC | Holden Brothers LLC | Tolland County, CT | Construction sand and gravel | 1 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 46 | 97.9% |
| Sand, common | 1 | 2.1% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 150 | 20 | $24,161 | 0 |
| 2023 | 236 | 43 | $54,802 | 1 |
| 2024 | 195 | 37 | $123,975 | 6 |
| 2025 | 133 | 22 | $54,721 | 1 |
| 2026 | 80 | 9 | $12,810 | 2 |
Standards cited most at sand and gravel mines in Connecticut
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 73 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 60 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 52 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 51 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 36 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 34 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 34 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 31 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 30 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 27 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 24 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 13 |
Injury and illness cases at sand and gravel mines in Connecticut
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 8 |
| No lost time, or an occupational illness | 2 |
What the accident reports at sand and gravel mines in Connecticut describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 3 |
| Machinery | 2 |
| Slip or fall of person | 2 |
| Electrical | 1 |
| Handtools (nonpowered) | 1 |
| Powered haulage | 1 |
Equipment named in accident reports at sand and gravel mines in Connecticut
| Equipment | Reports |
|---|---|
| Shovel | 3 |
| Hand tools (powered) | 1 |
| Hand tools (not powered) | 1 |
| Crusher | 1 |
| Front-end loader | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.