Repair, highway, road, street, bridge or airport runway · Iowa

Denco Highway Construction Corporation

Mingo, IA · ~72 workers · 8 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.9
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Denco Highway Construction Corporation runs at 176% of its industry's injury rate - more dangerous than the typical Repair, highway, road, street, bridge or airport runway workplace, earning a grade D.

Denco Highway Construction Corporation: 4.9 TCR = 176% of Repair, highway, road, street, bridge or airport runway BLS 2.8 · 8y Form 300A (see methodology below)

Denco Highway Construction Corporation safety composite

Denco Highway Construction Corporation scores strongest on fatalities (safer than 53% of same-industry peers) and weakest on total case rate (tcr) (safer than 30%), 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

39/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.92 per 100 workers

Safer than 30% of industry peers

DART rate
D 1.8 per 100 workers

Safer than 40% of industry peers

Fatalities
D 0

Safer than 53% 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

−6.0

2017→2024

Denco Highway Construction Corporation injury rate improved

Denco Highway Construction Corporation's TCR fell 6.0 from 7.8 in 2017 to 1.8 in 2024. Peak filing year was 2017 at 7.8 TCR. In 2024, DART was 0.37× this establishment's average TCR (severity share of cases).

2017=7.8 · 2018=7.1 · 2019=3.3 · 2020=6.6 · 2021=3.2 · 2022=4.9 · 2023=4.6 · 2024=1.8

OSHA ITA Form 300A scorecard

Establishment book 237310 · Mingo, IA ABOVE-IND · SMALL

Grade D · TCR 4.9 · 176% of ind

  • DART 1.8 DART
  • RANK #52/111
  • PHOTO South Carolina Depar…
  • BOOK 8y book
  • INJ 21 inj
  • SIZE ~72 FTE

Nearest TCR peer: South Carolina Department of Transportation (0.0 TCR gap)

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

Denco Highway Construction Corporation in the TCR neighbourhood

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

TCR

What this shows Denco Highway Construction Corporation averages 4.9 TCR (176% of the Repair, highway, road, street, bridge or airport runway BLS benchmark).

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

Denco Highway Construction Corporation TCR series: 2017=7.8 · 2018=7.1 · 2019=3.3 · 2020=6.6 · 2021=3.2 · 2022=4.9 · 2023=4.6 · 2024=1.8 · BLS 2.8

Where Denco Highway Construction Corporation falls in its industry

4,078 Repair, highway, road, street, establishments

Safer than 30% of graded establishments in this industry, whose median TCR is 3.0.

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #52 safest of 111 Repair, highway, road, street, employers in Iowa.

Denco Highway Construction Corporation (72 employees, TCR 4.9) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 3.0 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 01,0002,0003,000 0102030 Average employees Total Case Rate Denco Highway Construction Corporation
Denco Highway Construction Corporation (72 employees, TCR 4.9) among 29 same-industry peers, split at the industry median of 69 employees and a TCR of 3.0

Denco Highway Construction Corporation has more employees than the Repair, highway, road, street, bridge or median and a higher injury rate than the industry's median TCR of 3.0. 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 1.8 1.8 1 0 0
2023 4.6 1.5 3 0 0
2022 4.9 3.3 3 0 0
2021 3.2 3.2 2 0 0
2020 6.6 3.3 2 2 0
2019 3.3 0.0 2 0 0
2018 7.1 3.5 3 1 0
2017 7.8 1.6 5 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237310 · IA · Mingo

4,078 Repair, highway, road, street, bridge or airport runway employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 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 South Carolina Department of Transportation 4.9 TCR
NAICS-TCR Region 4 - Bldg K 4.9 TCR
NAICS-TCR ASRC Civil Construction LLC 4.9 TCR
NAICS-TCR Brothers' Construction, Inc. 4.9 TCR
STATE-SIZE Des Moines Two Rivers Gas 72 FTE
STATE-SIZE Forrest & Associate, Inc. 72 FTE
STATE-SIZE CKF Des Moines 72 FTE
STATE-SIZE IDT Coralville 2600 72 FTE
NAT-TCR Bulloch Fertilizer Co., Inc. 4.9 TCR
NAT-TCR Orange County Plastering Company Inc. 4.9 TCR
NAT-TCR Dillard Door & Security 4.9 TCR
NAT-TCR Dafco Aerospace 4.9 TCR
NAT-SIZE RMF Steel Products Co 72 FTE
NAT-SIZE Corporate 72 FTE
NAT-SIZE Kingman Police Department 72 FTE
NAT-SIZE Gordon Plumbing, Inc. 72 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: 2024, 2023, 2022, 2021, 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.