Foundation, building, poured concrete, contractors · Washington

Diamond Structures Inc.

Name: Diamond Structures Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Renton, WA · ~107 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 28.4
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Diamond Structures Inc. runs at 1013% of its industry's injury rate - far more dangerous than the typical Foundation, building, poured concrete, contractors workplace, earning a grade F.

Diamond Structures Inc.: 28.4 TCR = 1013% of Foundation, building, poured concrete, contractors BLS 2.8 · 3y Form 300A (see methodology below)

Diamond Structures Inc. safety composite

Diamond Structures Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 0%), 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).

13/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 28.35 per 100 workers

Safer than 0% of industry peers
DART rate: F 20.91 per 100 workers

Safer than 1% of industry peers
Fatalities: D 0

Safer than 51% 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%).

TCR Δ

−6.0

2017→2019

Diamond Structures Inc. injury rate improved

Diamond Structures Inc.'s TCR fell 6.0 from 30.9 in 2017 to 24.9 in 2019. Peak filing year was 2017 at 30.9 TCR. In 2019, DART was 0.74× this establishment's average TCR (severity share of cases).

2017=30.9 · 2018=29.3 · 2019=24.9

OSHA ITA Form 300A scorecard

Establishment book 238110 · Renton, WA ABOVE-IND · MID

Grade F · TCR 28.4 · 1013% of ind

DART 20.9 DART
RANK #28/28
PHOTO Pro Formance, Inc.
BOOK 3y book
INJ 89 inj
SIZE ~107 FTE

Nearest TCR peer: Pro Formance, Inc. (0.5 TCR gap)

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

Pro Formance,

28.8
This site

28.4
Steffy Concret

27.7
Placing

27.5
RRC Specialtie

26.8

What this shows Diamond Structures Inc. averages 28.4 TCR (1013% of the Foundation, building, poured concrete, contractors BLS benchmark).

Diamond Structures Inc. TCR series: 2017=30.9 · 2018=29.3 · 2019=24.9 · BLS 2.8

Where Diamond Structures Inc. falls in its industry

1,314 Foundation, building, poured c establishments

Safer than 0% of graded establishments in this industry, whose median TCR is 3.8.

Grade F

More dangerous than peersSafer than peers

Narrower to Washington alone (the establishments it most directly competes with for workers and contracts): ranked #28 safest of 28 Foundation, building, poured c employers in Washington.

Diamond Structures Inc. (107 employees, TCR 28.4) among 29 same-industry peers, split at the industry median of 64 employees and a TCR of 3.8

Diamond Structures Inc. has more employees than the Foundation, building, poured concrete, c median and a higher injury rate than the industry's median TCR of 3.8. 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
2019	24.9	20.9	25
2018	29.3	19.9	31
2017	30.9	21.5	33

OSHA ITA peer cross-reference

Establishment peer ledger

238110 · WA · Renton

1,314 Foundation, building, poured concrete, contractors employers nationwide with a credible TCR · 10,147 rated employers in Washington with headcount on file · 151 employers in Renton, WA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Pro Formance, Inc.	COLORADO SPRINGS, UT	28.8 TCR
NAICS-TCR	Steffy Concrete Inc	STEVENS, PA	27.7 TCR
NAICS-TCR	Placing	SOUTH ST. PAUL, MN	27.5 TCR
NAICS-TCR	RRC Specialties	ISANTI, MN	26.8 TCR
STATE-SIZE	Baker Produce - Northview	GEORGE	107 FTE
STATE-SIZE	PCI Seattle ISS	SEATTLE	107 FTE
STATE-SIZE	Niagara Bottling, LLC - Tacoma	PUYALLUP	107 FTE
STATE-SIZE	Sheets Unlimited	RENTON	107 FTE
CITY-NEAR	WA016	Renton	12,418 FTE
CITY-NEAR	Northwest Center	Renton	994 FTE
CITY-NEAR	AMZL : DSE5	Renton	794 FTE
CITY-NEAR	City of Renton	Renton	681 FTE
NAT-TCR	Landing on Dundee Senior Living	Wheeling, IL	28.4 TCR
NAT-TCR	Good Shepherd Home - Bethlehem (GSRN)	Bethlehem, PA	28.4 TCR
NAT-TCR	River Street School	Windsor, CT	28.3 TCR
NAT-TCR	City-Wide Forestry/Landscape	Los Angeles, CA	28.3 TCR
NAT-SIZE	Flambeau Sharon Center	Sharon Center, OH	107 FTE
NAT-SIZE	Grace Living Center-Norman	Norman, OK	107 FTE
NAT-SIZE	Parking Lot Maintenance Inc	Pewaukee, WI	107 FTE
NAT-SIZE	Olympic Products LLC	Greensboro, NC	107 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: 2019, 2018, 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.