Grading construction sites · California

D.A. McCosker Construction Co.

Concord, CA · ~206 workers · 4 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.8
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

D.A. McCosker Construction Co. runs at 99% of its industry's injury rate - about level with the typical Grading construction sites workplace, earning a grade C.

D.A. McCosker Construction Co.: 2.8 TCR = 99% of Grading construction sites BLS 2.8 · 4y Form 300A (see methodology below)

D.A. McCosker Construction Co. safety composite

D.A. McCosker Construction Co. scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on total case rate (tcr) (safer than 46%), 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).

D

49/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 2.78 per 100 workers

Safer than 46% of industry peers

DART rate
D 0.74 per 100 workers

Safer than 49% 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%).

TCR Δ

−4.3

2017→2020

D.A. McCosker Construction Co. injury rate improved

D.A. McCosker Construction Co.'s TCR fell 4.3 from 5.8 in 2017 to 1.5 in 2020. Peak filing year was 2017 at 5.8 TCR. In 2020, DART was 0.27× this establishment's average TCR (severity share of cases).

2017=5.8 · 2018=1.7 · 2019=2.0 · 2020=1.5

OSHA ITA Form 300A scorecard

Establishment book 238910 · Concord, CA AT/BELOW-IND · MID

Grade C · TCR 2.8 · 99% of ind

  • DART 0.7 DART
  • RANK #89/184
  • PHOTO Cazier Excavating, I…
  • BOOK 4y book
  • INJ 19 inj
  • SIZE ~206 FTE

Nearest TCR peer: Cazier Excavating, Inc. (0.0 TCR gap)

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

D.A. McCosker Construction Co. in the TCR neighbourhood

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

TCR

What this shows D.A. McCosker Construction Co. averages 2.8 TCR (99% of the Grading construction sites BLS benchmark).

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

D.A. McCosker Construction Co. TCR series: 2017=5.8 · 2018=1.7 · 2019=2 · 2020=1.5 · BLS 2.8

Where D.A. McCosker Construction Co. falls in its industry

1,750 Grading construction sites establishments

Safer than 46% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #89 safest of 184 Grading construction sites employers in California.

D.A. McCosker Construction Co. (206 employees, TCR 2.8) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5 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 050100150200250 0246810 Average employees Total Case Rate D.A. McCosker Construction Co.
D.A. McCosker Construction Co. (206 employees, TCR 2.8) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5

D.A. McCosker Construction Co. has more employees than the Grading construction sites median and a higher injury rate than the industry's median TCR of 2.5. 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 1.5 0.7 2 0 0
2019 2.0 0.5 4 0 0
2018 1.7 0.9 3 1 0
2017 5.8 2.9 10 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238910 · CA · Concord

1,750 Grading construction sites 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 Cazier Excavating, Inc. 2.8 TCR
NAICS-TCR Blue Goose Construction LLC 2.8 TCR
NAICS-TCR Phillips and Jordan, Inc/CA 2.8 TCR
NAICS-TCR Civil Site Services, Inc. 2.8 TCR
STATE-SIZE Wiebe Farms, Inc. 206 FTE
STATE-SIZE SunSelect Produce (California) Inc 206 FTE
STATE-SIZE agf management inc 206 FTE
STATE-SIZE CHICO SERVICE CENTER 206 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 Reuter Family YMCA 2.8 TCR
NAT-TCR Fort Lee Commissary 2.8 TCR
NAT-TCR Eastern Division Oneonta Office 2.8 TCR
NAT-TCR 2253-H4610 2.8 TCR
NAT-SIZE The Mill-Rose Company 206 FTE
NAT-SIZE Deaf & Residential Services 206 FTE
NAT-SIZE Red Ball Oxygen Co, Inc. 206 FTE
NAT-SIZE Bernstein Management Corporation 206 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.

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

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