Marine construction · Illinois

Great Lakes Dredge & Dock

Oakbrook, IL · ~1,085 workers · 4 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Great Lakes Dredge & Dock runs at 36% of its industry's injury rate - far safer than the typical Marine construction workplace, earning a grade A.

Great Lakes Dredge & Dock: 1.0 TCR = 36% of Marine construction BLS 2.8 · 4y Form 300A (see methodology below)

Great Lakes Dredge & Dock safety composite

Great Lakes Dredge & Dock scores strongest on total case rate (tcr) (safer than 62% of same-industry peers) and weakest on dart rate (safer than 40%), 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

52/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.01 per 100 workers

Safer than 62% of industry peers

DART rate
D 0.43 per 100 workers

Safer than 40% 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

−0.9

2017→2020

Great Lakes Dredge & Dock injury rate improved

Great Lakes Dredge & Dock's TCR fell 0.9 from 1.7 in 2017 to 0.8 in 2020. Peak filing year was 2017 at 1.7 TCR. In 2020, DART was 0.43× this establishment's average TCR (severity share of cases).

2017=1.7 · 2018=0.9 · 2019=0.6 · 2020=0.8

OSHA ITA Form 300A scorecard

Establishment book 237990 · Oakbrook, IL AT/BELOW-IND · LARGE

Grade A · TCR 1.0 · 36% of ind

  • DART 0.4 DART
  • RANK #7/23
  • PHOTO Mechanical Construct…
  • BOOK 4y book
  • INJ 68 inj
  • SIZE ~1,085 FTE

Nearest TCR peer: Mechanical Construction Services, Inc. (0.0 TCR gap)

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

Great Lakes Dredge & Dock in the TCR neighbourhood

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

TCR

What this shows Great Lakes Dredge & Dock averages 1.0 TCR (36% of the Marine construction BLS benchmark).

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

Great Lakes Dredge & Dock TCR series: 2017=1.7 · 2018=0.9 · 2019=0.6 · 2020=0.8 · BLS 2.8

Where Great Lakes Dredge & Dock falls in its industry

932 Marine construction establishments

Safer than 62% of graded establishments in this industry, whose median TCR is 1.5.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #7 safest of 23 Marine construction employers in Illinois.

Great Lakes Dredge & Dock (1,085 employees, TCR 1.0) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 1.5 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 05001,0001,500 051015 Average employees Total Case Rate Great Lakes Dredge & Dock
Great Lakes Dredge & Dock (1,085 employees, TCR 1.0) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 1.5

Great Lakes Dredge & Dock has more employees than the Marine construction median and a lower injury rate than the industry's median TCR of 1.5. 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 0.8 0.4 15 0 0
2019 0.6 0.2 12 0 0
2018 0.9 0.4 17 1 0
2017 1.7 0.8 24 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

237990 · IL · Oakbrook

932 Marine construction employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 20 employers in Oakbrook, IL · 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 Mechanical Construction Services, Inc. 1.0 TCR
NAICS-TCR 108000 - Lima Wharf H2O Guam JV 1.0 TCR
NAICS-TCR Michels Directional Crossings- Brownsville 1.0 TCR
NAICS-TCR 5523_12243 1.0 TCR
STATE-SIZE IL156 1,085 FTE
STATE-SIZE IL01 1,084 FTE
STATE-SIZE Kraft Heinz Company 1,088 FTE
STATE-SIZE AGI ORD 1,092 FTE
CITY-NEAR COMPASS HEALTH CENTER OAKBROOK PLLC 410 FTE
CITY-NEAR MOR 5 -ROBOC 93 FTE
CITY-NEAR Loyola Center for Health Oakbrook Terrace - LUHS IL 90 FTE
CITY-NEAR Oakbrook #103 86 FTE
NAT-TCR 90003930 Canal 3 Simple Cycle Project 1.0 TCR
NAT-TCR American Bank Center 1.0 TCR
NAT-TCR Foothills Energy Services, Inc 1.0 TCR
NAT-TCR Town of Oro Valley - Town Hall Administrative Offices 1.0 TCR
NAT-SIZE St. Luke's Cornwall Hospital-Newburgh 1,085 FTE
NAT-SIZE Roehl Refrigerated Transport 1,085 FTE
NAT-SIZE Brandon Regional Hospital 1,085 FTE
NAT-SIZE Roger Williams Medical Center 1,085 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.