Horizontal drilling (e.g., underground cable, pipeline, sewer installation) · Colorado
Superior Underground LLC
Denver, CO · ~89 workers · 2 years of OSHA Injury Tracking Application data.
- A
- Excellent Safety Record
- 0.9
- Avg TCR
- 2.8
- Industry avg
- 0
- Fatalities
The verdict
Superior Underground LLC runs at 32% of its industry's injury rate - far safer than the typical Horizontal drilling (e.g., underground cable, pipeline, sewer installation) workplace, earning a grade A.
Superior Underground LLC: 0.9 TCR = 32% of Horizontal drilling (e.g., underground cable, pipeline, sewer installation) BLS 2.8 · 2y Form 300A (see methodology below)
Superior Underground LLC safety composite
Superior Underground LLC scores strongest on total case rate (tcr) (safer than 66% of same-industry peers) and weakest on dart rate (safer than 23%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).
47/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- C 0.9 per 100 workers
Safer than 66% of industry peers
- DART rate
- F 1.8 per 100 workers
Safer than 23% of industry peers
- Fatalities
- D 0
Safer than 52% of industry peers
Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).
Rising injury rate
Superior Underground LLC: 0.0 → 1.8 TCR
Peak year 2024 @ 1.8 TCR · DART/TCR 2× in 2024
Superior Underground LLC's TCR rose 1.8 from 0.0 in 2023 to 1.8 in 2024. In 2024, DART was 2× this establishment's average TCR (severity share of cases).
OSHA ITA Form 300A scorecard
Establishment book 237990 · Denver, CO AT/BELOW-IND · SMALL
Grade A · TCR 0.9 · 32% of ind
- DART 1.8 DART
- RANK #7/26
- PHOTO TICONIC BRIDGE
- BOOK 2y book
- INJ 2 inj
- SIZE ~89 FTE
Nearest TCR peer: TICONIC BRIDGE (0.0 TCR gap)
Read with this employer → · Industry book → · Colorado employers → · Look up another →
Superior Underground LLC in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Superior Underground LLC
0.9 TCR
- TICONIC BRIDGE
TICONIC BRIDGE
0.9 TCR
- R. J. Corman R
R. J. Corman Railroad Services, Non-Emergency,
0.9 TCR
- Amboy Contract
Amboy Contractors, LLC
0.9 TCR
- 4043_7766
4043_7766
0.9 TCR
What this shows Superior Underground LLC averages 0.9 TCR (32% of the Horizontal drilling (e.g., underground cable, pipeline, sewer installation) BLS benchmark).
Superior Underground LLC TCR series: 2023=0 · 2024=1.8 · BLS 2.8
Where Superior Underground LLC falls in its industry
932 Horizontal drilling (e.g., und establishmentsSafer than 66% of graded establishments in this industry, whose median TCR is 1.5.
Narrower to Colorado alone (the establishments it most directly competes with for workers and contracts): ranked #7 safest of 26 Horizontal drilling (e.g., und employers in Colorado.
Superior Underground LLC has more employees than the Horizontal drilling (e.g., underground c median and a lower injury rate than the industry's median TCR of 1.5. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2024 | 1.8 | 1.8 | 2 | 0 | 0 |
| 2023 | 0.0 | 0.0 | 0 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
237990 · CO · Denver
932 Horizontal drilling (e.g., underground cable, pipeline, sewer installation) employers nationwide with a credible TCR · 9,007 rated employers in Colorado with headcount on file · 1,757 employers in Denver, CO · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.
| Rel | Establishment | Metric |
|---|---|---|
| NAICS-TCR | TICONIC BRIDGE | 0.9 TCR |
| NAICS-TCR | R. J. Corman Railroad Services, Non-Emergency, | 0.9 TCR |
| NAICS-TCR | Amboy Contractors, LLC | 0.9 TCR |
| NAICS-TCR | 4043_7766 | 0.9 TCR |
| STATE-SIZE | Lightsource bp - Denver Office | 89 FTE |
| STATE-SIZE | Poudre Valley Rural Electric Association, Inc | 89 FTE |
| STATE-SIZE | Gilbane Building Company Denver | 89 FTE |
| STATE-SIZE | Palace Construction Co., Inc | 89 FTE |
| CITY-NEAR | DEN DEN | 9,832 FTE |
| CITY-NEAR | 6925-DEN | 6,769 FTE |
| CITY-NEAR | DEN - Airport United Airlines Offices | 5,277 FTE |
| CITY-NEAR | CO-01 | 4,581 FTE |
| NAT-TCR | Freedom Finishing Inc | 0.9 TCR |
| NAT-TCR | Allen County Public Library | 0.9 TCR |
| NAT-TCR | HPC Industrial Services LLC H1226 | 0.9 TCR |
| NAT-TCR | Mann Mechanical | 0.9 TCR |
| NAT-SIZE | Cougar Cutting, Inc. | 89 FTE |
| NAT-SIZE | Midtown Health Center Inc. | 89 FTE |
| NAT-SIZE | Total Security Solutions | 89 FTE |
| NAT-SIZE | Stanley Engineering Co LLC | 89 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.