Data / Mines / Tennessee / Signal Mountain Cement Co
Signal Mountain Cement Co: 77 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Signal Mountain Cement Co is an active cement processing facility in Hamilton County, Tennessee, operated by Buzzi Unicem USA with 123 employees on MSHA's record (mine ID 4000838). Since January 1, 2022 MSHA inspectors issued 77 citations and orders there with $18,877 in proposed penalties, and 13 accident reports were filed there, with 11 injury or illness cases.
The request: Watch Signal Mountain Cement Co (MSHA mine ID 4000838) in Hamilton County, Tennessee: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4000838
- Status
- Active since May 11, 1973
- Main commodity
- Cement
- Mine type
- Facility
- County
- Hamilton County, Tennessee
- Nearest town
- Chattanooga
- Operator
- Buzzi Unicem USA
- Employees
- 123
- MSHA field office
- Knoxville TN Field Office
- Citations and orders since January 1, 2022
- 77
- Significant and substantial
- 15 (19.5%)
- Closure orders
- 2
- High negligence or reckless
- 0
- Proposed penalties
- $18,877
- Amount paid so far
- $18,877
- Inspections
- 23
- Inspector hours on site
- 695
- Citations per inspection
- 3.35 (all mines 2.30)
- Accident reports
- 13
- Injury and illness cases
- 11
- Fatalities
- 0
- Latest MSHA record
- June 25, 2026
- Citations issued to contractors here
- 8 ($2,325 proposed)
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 | 5 | 1 | $880 | 0 |
| 2023 | 28 | 4 | $6,578 | 5 |
| 2024 | 13 | 1 | $3,275 | 2 |
| 2025 | 23 | 7 | $5,223 | 4 |
| 2026 | 8 | 2 | $2,921 | 0 |
Standards cited most at Signal Mountain Cement Co
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 | 9 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12020 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.10 | Reporting of accidents, injuries and illnesses | 1 |
Injury and illness cases at Signal Mountain Cement Co
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 4 |
| No lost time, or an occupational illness | 7 |
What the accident reports at Signal Mountain Cement Co describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 4 |
| Handling of materials | 3 |
| Machinery | 3 |
| Fire | 1 |
| Ignition or explosion of gas or dust | 1 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at Signal Mountain Cement Co
| Equipment | Reports |
|---|---|
| Hand tools (powered) | 2 |
| Trucks | 1 |
| Milling machinery | 1 |
| Hand tools (not powered) | 1 |
Other open mines in Hamilton County, Tennessee
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Chattanooga Quarry | Vulcan Construction Materials, LLC | Hamilton County, TN | Crushed, broken limestone | 41 | 22 |
| Lookout Valley Quarry | Midsouth Aggregates | Hamilton County, TN | Crushed, broken limestone | 12 | 10 |
| Chattanooga Quarry | Martin Marietta Materials, Inc. | Hamilton County, TN | Crushed, broken limestone | 12 | 7 |
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.