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MSHA mine register by county

Mines in Sussex County, Delaware

Sussex County, Delaware has 9 mines on MSHA's register: 4 active, 1 intermittent, 4 abandoned. 29 accidents have been reported at these mines between 1999 and 2025. Inspectors have issued 207 citations.

Every mine MSHA has registered in Sussex 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 Sussex County →

Mines on register
9
Active
4
Fatalities on record
0
Citations issued
207
0 underground · 9 surface · 0 facilities 0 coal · 9 metal and non-metal 1 intermittent 4 abandoned 29 reported accidents, 1999–2025
Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Sussex County, Delaware · Population 247,799
0.2%
Mining share of county employment
$78,162
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
Vulcan Construction Materials, LLC 3 1 0
M.L. JOSEPH SAND & GRAVEL INC. 2 2 0
Chaney Enterprises, LP DBA Sussex Sand & Gravel 3 1 0 0
David G Horsey & Sons Trucking Inc 1 0 0
Howard L Ritter & Sons Inc 1 0 0
Sustainable Land Use, LLC 1 1 0
Mines in Sussex County9 on register
  1. M L Joseph Sand & Gravel Company Inc
    Surface metal/non-metal · M L Joseph Sand & Gravel Company Inc · MSHA ID 0700104
    Active
  2. SEAFORD-DE SAND & GRAVEL
    Surface metal/non-metal · Sustainable Land Use, LLC · MSHA ID 0700108
    Active
  3. Wolman
    Surface metal/non-metal · Vulcan Construction Materials LLC · MSHA ID 0700112
    Active
  4. PLANT #2
    Surface metal/non-metal · M.L. JOSEPH SAND & GRAVEL INC. · MSHA ID 0700113
    Active
  5. Laurel Sand Plant
    Surface metal/non-metal · Vulcan Construction Materials, LLC · MSHA ID 0700106
    Intermittent
  6. James Sand Plant
    Surface metal/non-metal · Vulcan Construction Materials, LLC · MSHA ID 0700107
    Abandoned
  7. DAVID G. HORSEY & SONS TRUCKING
    Surface metal/non-metal · David G Horsey & Sons Trucking Inc · MSHA ID 0700102
    Abandoned
  8. Sussex 3
    Surface metal/non-metal · Chaney Enterprises, LP DBA Sussex Sand & Gravel 3 · MSHA ID 0700111
    Abandoned
  9. Lewes Pit
    Surface metal/non-metal · Howard L Ritter & Sons Inc · MSHA ID 0700099
    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 DelawareAll 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.