Electric power generation, hydroelectric · Montana

Rainbow Dam

Great Falls, MT · ~26 workers · 9 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
2.5
Avg TCR
1.2
Industry avg
0
Fatalities
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The verdict

Rainbow Dam runs at 208% of its industry's injury rate - far more dangerous than the typical Electric power generation, hydroelectric workplace, earning a grade F.

Rainbow Dam: 2.5 TCR = 208% of Electric power generation, hydroelectric BLS 1.2 · 9y Form 300A (see methodology below)

Rainbow Dam safety composite

Rainbow Dam scores strongest on dart rate (safer than 76% of same-industry peers) and weakest on fatalities (safer than 52%), 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).

C

64/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.5 per 100 workers

Safer than 60% of industry peers

DART rate
B 0 per 100 workers

Safer than 76% 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

Rainbow Dam: 0.0 → 7.4 TCR

Peak year 2017 @ 7.7 TCR · DART/TCR 0× in 2024

Rainbow Dam's TCR rose 7.4 from 0.0 in 2016 to 7.4 in 2024. Peak filing year was 2017 at 7.7 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 221111 · Great Falls, MT ABOVE-IND · SMALL

Grade F · TCR 2.5 · 208% of ind

  • DART 0.0 DART
  • RANK P60
  • PHOTO Wisconsin Valley Imp…
  • BOOK 9y book
  • INJ 6 inj
  • SIZE ~26 FTE

Nearest TCR peer: Wisconsin Valley Improvement Company (0.0 TCR gap)

Read with this employer → · Industry book → · Montana employers → · Look up another →

Rainbow Dam in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Rainbow Dam averages 2.5 TCR (208% of the Electric power generation, hydroelectric BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Rainbow Dam TCR series: 2016=0 · 2017=7.7 · 2018=0 · 2019=0 · 2020=0 · 2021=0 · 2022=3.7 · 2023=3.7 · 2024=7.4 · BLS 1.2

Where Rainbow Dam falls in its industry

129 Electric power generation, hyd establishments

Safer than 60% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers
Rainbow Dam (26 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300400500 051015 Average employees Total Case Rate Rainbow Dam
Rainbow Dam (26 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.3

Rainbow Dam has fewer employees than the Electric power generation, hydroelectric median and a lower injury rate than the industry's median TCR of 3.3. 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 7.4 0.0 2 0 0
2023 3.7 0.0 1 0 0
2022 3.7 3.7 1 0 0
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 0.0 0.0 0 0 0
2018 0.0 0.0 0 0 0
2017 7.7 0.0 2 0 0
2016 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

221111 · MT · Great Falls

129 Electric power generation, hydroelectric employers nationwide with a credible TCR · 1,536 rated employers in Montana with headcount on file · 121 employers in Great Falls, MT · 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 Wisconsin Valley Improvement Company 2.5 TCR
NAICS-TCR Avista Noxon 2.5 TCR
NAICS-TCR Brookfield Renewable - Safe Harbor 2.5 TCR
NAICS-TCR 705-NiSource-Monticello IN-Operating HQ 2.6 TCR
STATE-SIZE Parke Logging Inc. 26 FTE
STATE-SIZE Sheridan Electric Co-op, Inc. 26 FTE
STATE-SIZE Guy Tabacco Construction 26 FTE
STATE-SIZE Lonesome Dove Concrete Pumping LLC Belgrade 26 FTE
CITY-NEAR 2455 388 FTE
CITY-NEAR WM 7199 341 FTE
CITY-NEAR WM 2455 340 FTE
CITY-NEAR 7199 301 FTE
NAT-TCR Hays 2.5 TCR
NAT-TCR 99 Sunnyside Blvd 2.5 TCR
NAT-TCR Scottsboro 2.5 TCR
NAT-TCR CCL Label 2.5 TCR
NAT-SIZE Jones Manufacturing Company 26 FTE
NAT-SIZE UCO 26 FTE
NAT-SIZE UGJ 26 FTE
NAT-SIZE XCD 26 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.