Asphalt paving (i.e., highway, road, street, public sidewalk) · California

Black Diamond Paving, LLC

Name: Black Diamond Paving, LLC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Hayward, CA · ~55 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 4.8
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Black Diamond Paving, LLC runs at 172% of its industry's injury rate - more dangerous than the typical Asphalt paving (i.e., highway, road, street, public sidewalk) workplace, earning a grade D.

Black Diamond Paving, LLC: 4.8 TCR = 172% of Asphalt paving (i.e., highway, road, street, public sidewalk) BLS 2.8 · 6y Form 300A (see methodology below)

Black Diamond Paving, LLC safety composite

Black Diamond Paving, LLC scores strongest on fatalities (safer than 53% of same-industry peers) and weakest on dart rate (safer than 28%), 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).

35/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 4.81 per 100 workers

Safer than 30% of industry peers
DART rate: F 3.03 per 100 workers

Safer than 28% of industry peers
Fatalities: D 0

Safer than 53% 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

−6.6

2018→2023

Black Diamond Paving, LLC injury rate improved

Black Diamond Paving, LLC's TCR fell 6.6 from 9.6 in 2018 to 3.0 in 2023. Peak filing year was 2018 at 9.6 TCR. In 2023, DART was 0.63× this establishment's average TCR (severity share of cases).

2018=9.6 · 2019=1.9 · 2020=0.0 · 2021=5.1 · 2022=9.2 · 2023=3.0

OSHA ITA Form 300A scorecard

Establishment book 237310 · Hayward, CA ABOVE-IND · SMALL

Grade D · TCR 4.8 · 172% of ind

DART 3.0 DART
RANK #472/551
PHOTO Public Works - Stree…
BOOK 6y book
INJ 14 inj
SIZE ~55 FTE

Nearest TCR peer: Public Works - Street, Parks (0.0 TCR gap)

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

This site

4.8
Public Works -

4.8
Centerline Tec

4.8
Kannapolis Pro

4.8
JACKSON SHOP &

4.8

What this shows Black Diamond Paving, LLC averages 4.8 TCR (172% of the Asphalt paving (i.e., highway, road, street, public sidewalk) BLS benchmark).

Black Diamond Paving, LLC TCR series: 2018=9.6 · 2019=1.9 · 2020=0 · 2021=5.1 · 2022=9.2 · 2023=3 · BLS 2.8

Where Black Diamond Paving, LLC falls in its industry

4,078 Asphalt paving (i.e., highway, establishments

Safer than 30% of graded establishments in this industry, whose median TCR is 3.0.

Grade D

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #472 safest of 551 Asphalt paving (i.e., highway, employers in California.

Black Diamond Paving, LLC (55 employees, TCR 4.8) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 3.0

Black Diamond Paving, LLC has fewer employees than the Asphalt paving (i.e., highway, road, str 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
2023	3.0	3.0	2	0
2022	9.2	3.7	5	0
2021	5.1	3.4	2	1
2020	0.0	0.0	0	0
2019	1.9	1.9	1	0
2018	9.6	9.6	4	0

OSHA ITA peer cross-reference

Establishment peer ledger

237310 · CA · Hayward

4,078 Asphalt paving (i.e., highway, road, street, public sidewalk) employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 336 employers in Hayward, CA · 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	Public Works - Street, Parks	WORTHINGTON, MN	4.8 TCR
NAICS-TCR	Centerline Technologies, LLC	VICTORIA, TX	4.8 TCR
NAICS-TCR	Kannapolis Project	KANNAPOLIS, NC	4.8 TCR
NAICS-TCR	JACKSON SHOP & WEST TENN STRUCTURES	JACKSON, TN	4.8 TCR
STATE-SIZE	FARMING ADMINISTRATION	BAKERSFIELD	55 FTE
STATE-SIZE	Dwelley Family Farms LLC	OAKLEY	55 FTE
STATE-SIZE	Tri-Valley Vineyard Management	CLOVERDALE	55 FTE
STATE-SIZE	Cornerstone Certified Vineyard	WINDSOR	55 FTE
CITY-NEAR	California Department of Transportation Facility 518	Hayward	2,891 FTE
CITY-NEAR	California Department of Transportation Facility 100	Hayward	2,817 FTE
CITY-NEAR	California Department of Transportation Facility 117	Hayward	2,817 FTE
CITY-NEAR	St Rose Hospital	Hayward	929 FTE
NAT-TCR	Military Affairs - 133rd AW	St Paul, MN	4.8 TCR
NAT-TCR	Integrated Recycling Technologies, Inc.	Saint Cloud, MN	4.8 TCR
NAT-TCR	Alliance Concrete Orange City	Orange City, IA	4.8 TCR
NAT-TCR	Big Lots Store #5116 Catonville, MD	Catonsville, MD	4.8 TCR
NAT-SIZE	Gregory Poole Lift Systems- Richmond	Richmond, VA	55 FTE
NAT-SIZE	BIR Transport Co., Inc.	Dper - Draper, VA	55 FTE
NAT-SIZE	St. George	Saint George, UT	55 FTE
NAT-SIZE	ClearSky Rehabilitation Hospital of Leesville	Leesville, LA	55 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: 2023, 2022, 2021, 2020, 2019, 2018. 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.