Grading construction sites · California

D.A. McCosker Construction

Valencia, CA · ~129 workers · 4 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
3.5
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

D.A. McCosker Construction runs at 126% of its industry's injury rate - more dangerous than the typical Grading construction sites workplace, earning a grade D.

D.A. McCosker Construction: 3.5 TCR = 126% of Grading construction sites BLS 2.8 · 4y Form 300A (see methodology below)

D.A. McCosker Construction safety composite

D.A. McCosker Construction scores strongest on dart rate (safer than 77% of same-industry peers) and weakest on total case rate (tcr) (safer than 36%), 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

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.52 per 100 workers

Safer than 36% of industry peers

DART rate
B 0 per 100 workers

Safer than 77% 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

−6.8

2017→2020

D.A. McCosker Construction injury rate improved

D.A. McCosker Construction's TCR fell 6.8 from 6.8 in 2017 to 0.0 in 2020. Peak filing year was 2017 at 6.8 TCR. In 2020, DART was 0× this establishment's average TCR (severity share of cases).

2017=6.8 · 2018=5.3 · 2019=2.0 · 2020=0.0

OSHA ITA Form 300A scorecard

Establishment book 238910 · Valencia, CA ABOVE-IND · MID

Grade D · TCR 3.5 · 126% of ind

  • DART 0.0 DART
  • RANK #116/184
  • PHOTO Molon Excavating Inc
  • BOOK 4y book
  • INJ 17 inj
  • SIZE ~129 FTE

Nearest TCR peer: Molon Excavating Inc (0.0 TCR gap)

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

D.A. McCosker Construction in the TCR neighbourhood

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

TCR

What this shows D.A. McCosker Construction averages 3.5 TCR (126% 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 TCR series: 2017=6.8 · 2018=5.3 · 2019=2 · 2020=0 · BLS 2.8

Where D.A. McCosker Construction falls in its industry

1,750 Grading construction sites establishments

Safer than 36% 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 #116 safest of 184 Grading construction sites employers in California.

D.A. McCosker Construction (129 employees, TCR 3.5) 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
D.A. McCosker Construction (129 employees, TCR 3.5) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5

D.A. McCosker Construction 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 0.0 0.0 0 0 0
2019 2.0 2.0 2 0 0
2018 5.3 4.0 8 0 0
2017 6.8 2.9 7 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238910 · CA · Valencia

1,750 Grading construction sites employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 186 employers in Valencia, 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 Molon Excavating Inc 3.5 TCR
NAICS-TCR C W Strittmatter LLC 3.5 TCR
NAICS-TCR Sargent Corporation - New England Operations 3.5 TCR
NAICS-TCR Mark Haynes Construction, Inc. 3.5 TCR
STATE-SIZE MIGUEL OLIVARES & SONS 129 FTE
STATE-SIZE SUPERIOR AG. 129 FTE
STATE-SIZE Manco Ag Services 129 FTE
STATE-SIZE LADWP 11791 TRUESDALE 129 FTE
CITY-NEAR California Department of Transportation Facility 62 2,621 FTE
CITY-NEAR Henry Mayo Newhall Memorial Hospital 1,776 FTE
CITY-NEAR Boston Scientific Neuromodulation 1,455 FTE
CITY-NEAR Woodward HRT Santa Clarita 726 FTE
NAT-TCR Old Jefferson Community Care Center 3.5 TCR
NAT-TCR Sandschafer Electric 3.5 TCR
NAT-TCR Meijer 180 3.5 TCR
NAT-TCR Meijer Store 166 3.5 TCR
NAT-SIZE Atlantic CommTech Corporation 129 FTE
NAT-SIZE Nypro Healthcare Chicago 129 FTE
NAT-SIZE Protein Conversion 129 FTE
NAT-SIZE Augustana Mercy 129 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.