Retaining wall, masonry (i.e., block, brick, stone), construction · California

B.C. McCosker Construction

Concord, CA · ~26 workers · 4 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.6
Avg TCR
2.8
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

B.C. McCosker Construction runs at 200% of its industry's injury rate - far more dangerous than the typical Retaining wall, masonry (i.e., block, brick, stone), construction workplace, earning a grade F.

B.C. McCosker Construction: 5.6 TCR = 200% of Retaining wall, masonry (i.e., block, brick, stone), construction BLS 2.8 · 4y Form 300A (see methodology below)

B.C. McCosker Construction safety composite

B.C. McCosker Construction scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 20%), 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

33/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.61 per 100 workers

Safer than 33% of industry peers

DART rate
F 5.08 per 100 workers

Safer than 20% 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

−1.2

2017→2020

B.C. McCosker Construction injury rate improved

B.C. McCosker Construction's TCR fell 1.2 from 6.3 in 2017 to 5.1 in 2020. Peak filing year was 2019 at 7.8 TCR. In 2020, DART was 0.91× this establishment's average TCR (severity share of cases).

2017=6.3 · 2018=3.2 · 2019=7.8 · 2020=5.1

OSHA ITA Form 300A scorecard

Establishment book 238140 · Concord, CA ABOVE-IND · SMALL

Grade F · TCR 5.6 · 200% of ind

  • DART 5.1 DART
  • RANK #43/77
  • PHOTO Dee Brown, Inc. Dallas
  • BOOK 4y book
  • INJ 6 inj
  • SIZE ~26 FTE

Nearest TCR peer: Dee Brown, Inc. Dallas (0.0 TCR gap)

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

B.C. McCosker Construction in the TCR neighbourhood

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

TCR

What this shows B.C. McCosker Construction averages 5.6 TCR (200% of the Retaining wall, masonry (i.e., block, brick, stone), construction BLS benchmark).

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

B.C. McCosker Construction TCR series: 2017=6.3 · 2018=3.2 · 2019=7.8 · 2020=5.1 · BLS 2.8

Where B.C. McCosker Construction falls in its industry

703 Retaining wall, masonry (i.e., establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 3.9.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #43 safest of 77 Retaining wall, masonry (i.e., employers in California.

B.C. McCosker Construction (26 employees, TCR 5.6) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.9 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 0200400600 0246810 Average employees Total Case Rate B.C. McCosker Construction
B.C. McCosker Construction (26 employees, TCR 5.6) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.9

B.C. McCosker Construction has fewer employees than the Retaining wall, masonry (i.e., block, br median and a higher injury rate than the industry's median TCR of 3.9. 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
2020 5.1 5.1 1 0 0
2019 7.8 7.8 2 0 0
2018 3.2 3.2 1 0 0
2017 6.3 0.0 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238140 · CA · Concord

703 Retaining wall, masonry (i.e., block, brick, stone), construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 201 employers in Concord, CA · 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 Dee Brown, Inc. Dallas 5.6 TCR
NAICS-TCR Alban Masonry, LLC 5.6 TCR
NAICS-TCR Palo Verde Plastering, Inc 5.6 TCR
NAICS-TCR Slattery Mitchell, Inc. 5.6 TCR
STATE-SIZE HAULING & TRAILER SHOP 26 FTE
STATE-SIZE Seasholtz Co., LLC 26 FTE
STATE-SIZE Redwood Valley Vineyards 26 FTE
STATE-SIZE North Central Coast Vineyards 26 FTE
CITY-NEAR CA-01 4,525 FTE
CITY-NEAR California Department of Transportation Facility 403 2,891 FTE
CITY-NEAR AX9 Security Inc 1,725 FTE
CITY-NEAR Gonsalves and Santucci 1,551 FTE
NAT-TCR Nemschoff Riverside 5.6 TCR
NAT-TCR Outpatient Rehab Center 5.6 TCR
NAT-TCR 6396-Sprenger Health Care of Mishawaka 5.6 TCR
NAT-TCR Jenco, Inc. 5.6 TCR
NAT-SIZE Circleville Family Practice 26 FTE
NAT-SIZE Covey 26 FTE
NAT-SIZE Fairfield Inn Portsmouth Seacoast 26 FTE
NAT-SIZE Home Health Waynesboro 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: 2020, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.