Excavation contractors · Massachusetts

Seaport Block L5

Boston, MA · ~11 workers · 3 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Seaport Block L5 runs at 70% of its industry's injury rate - safer than the typical Excavation contractors workplace, earning a grade B.

Seaport Block L5: 2.0 TCR = 70% of Excavation contractors BLS 2.8 · 3y Form 300A (see methodology below)

Seaport Block L5 safety composite

Seaport Block L5 scores strongest on dart rate (safer than 77% of same-industry peers) and weakest on fatalities (safer than 52%), 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).

C

64/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.96 per 100 workers

Safer than 61% 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

−5.9

2022→2024

Seaport Block L5 injury rate improved

Seaport Block L5's TCR fell 5.9 from 5.9 in 2022 to 0.0 in 2024. Peak filing year was 2022 at 5.9 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2022=5.9 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 238910 · Boston, MA AT/BELOW-IND · SMALL

Grade B · TCR 2.0 · 70% of ind

  • DART 0.0 DART
  • RANK #20/56
  • PHOTO Double D Gravel, Inc.
  • BOOK 3y book
  • INJ 1 inj
  • SIZE ~11 FTE

Nearest TCR peer: Double D Gravel, Inc. (0.0 TCR gap)

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

Seaport Block L5 in the TCR neighbourhood

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

TCR

What this shows Seaport Block L5 averages 2.0 TCR (70% of the Excavation contractors BLS benchmark).

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

Seaport Block L5 TCR series: 2022=5.9 · 2023=0 · 2024=0 · BLS 2.8

Where Seaport Block L5 falls in its industry

1,750 Excavation contractors establishments

Safer than 61% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 56 Excavation contractors employers in Massachusetts.

Seaport Block L5 (11 employees, TCR 2.0) 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 Seaport Block L5
Seaport Block L5 (11 employees, TCR 2.0) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5

Seaport Block L5 has fewer employees than the Excavation contractors median and a lower 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
2024 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 5.9 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238910 · MA · Boston

1,750 Excavation contractors employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 577 employers in Boston, MA · 4 cross-state NAT-TCR peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Double D Gravel, Inc. 2.0 TCR
NAICS-TCR Woodson Incorporated 2.0 TCR
NAICS-TCR Main Office 2.0 TCR
NAICS-TCR Mack Contracting, LLC 2.0 TCR
STATE-SIZE HART Engineering Corporation - Alnylam 11 FTE
STATE-SIZE Eversource-Marshfield 11 FTE
STATE-SIZE SODEXO AT P&G SOUTH BOSTON ADMIN 11 FTE
STATE-SIZE SODEXO AT WINCHESTER HOSPITAL 11 FTE
CITY-NEAR Massachusetts General Hospital 26,855 FTE
CITY-NEAR Brigham and Women's Hospital 19,183 FTE
CITY-NEAR Brigham and Womens Hospital 19,004 FTE
CITY-NEAR Brigham & Women's Hospital 18,260 FTE
NAT-TCR 0000000003 Vocational Services 2.0 TCR
NAT-TCR Huntsville 2.0 TCR
NAT-TCR Suterra 2.0 TCR
NAT-TCR Western Specialty Contractors - Denver 2.0 TCR

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: 2024, 2023, 2022. 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.