Data / Mines / Colorado / Riverbend Sand and Gravel
Riverbend Sand and Gravel: 21 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Riverbend Sand and Gravel is an active construction sand and gravel surface mine in Weld County, Colorado, operated by Martin Marietta Materials, Inc. with 23 employees on MSHA's record (mine ID 0504841). Since January 1, 2022 MSHA inspectors issued 21 citations and orders there with $204,715 in proposed penalties, and 4 accident reports were filed there, with 4 injury or illness cases, 1 of them fatal.
The request: Watch Riverbend Sand and Gravel (MSHA mine ID 0504841) in Weld County, Colorado: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0504841
- Status
- Active since February 1, 2013
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Weld County, Colorado
- Nearest town
- Brighton
- Operator
- Martin Marietta Materials, Inc.
- Parent company
- Martin Marietta Materials Inc
- Employees
- 23
- MSHA field office
- Denver CO Field Office
- Citations and orders since January 1, 2022
- 21
- Significant and substantial
- 5 (23.8%)
- Closure orders
- 1
- High negligence or reckless
- 3
- Proposed penalties
- $204,715
- Amount paid so far
- $152,315
- Inspections
- 16
- Inspector hours on site
- 219
- Citations per inspection
- 1.31 (all mines 2.30)
- Accident reports
- 4
- Injury and illness cases
- 4
- Fatalities
- 1
- Latest MSHA record
- September 24, 2026
- Citations issued to contractors here
- 11 ($2,207 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 | $4,160 | 1 |
| 2023 | 4 | 0 | $750 | 2 |
| 2024 | 6 | 3 | $198,986 | 1 |
| 2025 | 3 | 0 | $668 | 0 |
| 2026 | 3 | 1 | $151 | 0 |
Standards cited most at Riverbend Sand and Gravel
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 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 2 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14211 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.16009 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.7 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.3200 | Surface metal and nonmetal mines | 1 |
| 30 CFR 47.41 | Hazard communication | 1 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Riverbend Sand and Gravel
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Days away from work or restricted activity | 3 |
What the accident reports at Riverbend Sand and Gravel describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 2 |
| Powered haulage | 1 |
| Machinery | 1 |
Equipment named in accident reports at Riverbend Sand and Gravel
| Equipment | Reports |
|---|---|
| Conveyor | 1 |
| Front-end loader | 1 |
| Shovel | 1 |
Other open mines in Weld County, Colorado
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| North Weld Gravel Pit | C & H Excavation LLC | Weld County, CO | Construction sand and gravel | 10 | 58 |
| 115 WP | Raptor Materials LLC | Weld County, CO | Construction sand and gravel | 20 | 56 |
| Keenesburg #2 | Colorado Sand Company | Weld County, CO | Sand, industrial | 85 | 39 |
| Portable Crusher #1 | Mill Iron Mining | Weld County, CO | Construction sand and gravel | 9 | 38 |
| Inouye Gravel Mine | Burnco | Weld County, CO | Construction sand and gravel | 9 | 29 |
| Portable Plant 1 | Laser Oilfield Services | Weld County, CO | Construction sand and gravel | 2 | 28 |
| Bennett Pit | Northern Colorado Constructors, Inc. | Weld County, CO | Construction sand and gravel | 14 | 25 |
| Ragsdale Reservoirs | L G Everist Inc | Weld County, CO | Construction sand and gravel | 6 | 23 |
| Pit 25-Morton Lakes | Ready Mixed Concrete Company | Weld County, CO | Construction sand and gravel | 22 | 21 |
| Fort Lupton Sand & Gravel | L G Everist Inc | Weld County, CO | Construction sand and gravel | 6 | 17 |
| Portable Crusher #1 | Connell Resources, Inc. | Weld County, CO | Construction sand and gravel | 10 | 15 |
| Bucklen Equipment Company Incorporated | Bucklen Equipment Company Incorporated | Weld County, CO | Construction sand and gravel | 3 | 15 |
| Denm | Monarch Mountain Minerals & Aggregates, LLC | Weld County, CO | Construction sand and gravel | 2 | 14 |
| Green/Croissant | Loveland Ready Mix Concrete Inc | Weld County, CO | Construction sand and gravel | 5 | 13 |
| Vip Mine | Vip Mine LLC | Weld County, CO | Construction sand and gravel | 5 | 11 |
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.