Sewage disposal plant construction · Washington

Ohno Construction Company

Seattle, WA · ~63 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.9
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Ohno Construction Company runs at 211% of its industry's injury rate - far more dangerous than the typical Sewage disposal plant construction workplace, earning a grade F.

Ohno Construction Company: 5.9 TCR = 211% of Sewage disposal plant construction BLS 2.8 · 3y Form 300A (see methodology below)

Ohno Construction Company safety composite

Ohno Construction Company scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 6%), 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).

F

23/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.92 per 100 workers

Safer than 19% of industry peers

DART rate
F 8.12 per 100 workers

Safer than 6% 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

Ohno Construction Company: 1.8 → 8.1 TCR

Peak year 2024 @ 8.1 TCR · DART/TCR 1.37× in 2024

Ohno Construction Company's TCR rose 6.4 from 1.8 in 2017 to 8.1 in 2024. In 2024, DART was 1.37× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 237110 · Seattle, WA ABOVE-IND · SMALL

Grade F · TCR 5.9 · 211% of ind

  • DART 8.1 DART
  • RANK #22/29
  • PHOTO Delta Pipeline, Inc.
  • BOOK 3y book
  • INJ 10 inj
  • SIZE ~63 FTE

Nearest TCR peer: Delta Pipeline, Inc. (0.0 TCR gap)

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

Ohno Construction Company in the TCR neighbourhood

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

TCR

What this shows Ohno Construction Company averages 5.9 TCR (211% of the Sewage disposal plant construction BLS benchmark).

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

Ohno Construction Company TCR series: 2017=1.8 · 2023=7.9 · 2024=8.1 · BLS 2.8

Where Ohno Construction Company falls in its industry

1,614 Sewage disposal plant construc establishments

Safer than 19% of graded establishments in this industry, whose median TCR is 3.0.

More dangerous than peersSafer than peers

Narrower to Washington alone (the establishments it most directly competes with for workers and contracts): ranked #22 safest of 29 Sewage disposal plant construc employers in Washington.

Ohno Construction Company (63 employees, TCR 5.9) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0 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 Ohno Construction Company
Ohno Construction Company (63 employees, TCR 5.9) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0

Ohno Construction Company has more employees than the Sewage disposal plant construction median and a higher injury rate than the industry's median TCR of 3.0. 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 8.1 8.1 6 0 0
2023 7.9 2.6 3 0 0
2017 1.8 1.8 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237110 · WA · Seattle

1,614 Sewage disposal plant construction employers nationwide with a credible TCR · 10,147 rated employers in Washington with headcount on file · 1,279 employers in Seattle, WA · 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 Delta Pipeline, Inc. 5.9 TCR
NAICS-TCR Cary 5.9 TCR
NAICS-TCR Stanley Miller Construction Co Main 5.9 TCR
NAICS-TCR ProPump and Controls Inc 5.9 TCR
STATE-SIZE Watson's Greenhouse 63 FTE
STATE-SIZE John I Haas Inc 63 FTE
STATE-SIZE George DeRuyter & Sons Dairy 63 FTE
STATE-SIZE Manke Lumber Company Inc. - Shelton 63 FTE
CITY-NEAR UW Seattle 32,378 FTE
CITY-NEAR The United States of America 25,000 FTE
CITY-NEAR Starz Entertainment 25,000 FTE
CITY-NEAR UW Medical Center - Montlake and NW 11,307 FTE
NAT-TCR Assisted Living Facility 5.9 TCR
NAT-TCR Brookwood Medical Center 5.9 TCR
NAT-TCR Shakopee Public Utilities 5.9 TCR
NAT-TCR Brookdale Desert Ridge 5.9 TCR
NAT-SIZE Union Power Cooperative - Oakboro 63 FTE
NAT-SIZE Direct Source Inc 63 FTE
NAT-SIZE Reliant Energy Systems 63 FTE
NAT-SIZE Bernard J Mulcahy Company 63 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, 2017. 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.