Footing and foundation concrete contractors · Iowa

Duwa's Quality Walls, Inc

Name: Duwa's Quality Walls, Inc Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Riverside, IA · ~33 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 7.7
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Duwa's Quality Walls, Inc runs at 276% of its industry's injury rate - far more dangerous than the typical Footing and foundation concrete contractors workplace, earning a grade F.

Duwa's Quality Walls, Inc: 7.7 TCR = 276% of Footing and foundation concrete contractors BLS 2.8 · 6y Form 300A (see methodology below)

Duwa's Quality Walls, Inc safety composite

Duwa's Quality Walls, Inc scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 18%), 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).

30/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 7.72 per 100 workers

Safer than 18% of industry peers
DART rate: F 3.42 per 100 workers

Safer than 30% of industry peers
Fatalities: D 0

Safer than 51% 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

−3.1

2017→2023

Duwa's Quality Walls, Inc injury rate improved

Duwa's Quality Walls, Inc's TCR fell 3.1 from 13.4 in 2017 to 10.3 in 2023. Peak filing year was 2020 at 75.0 TCR. In 2023, DART was 0.44× this establishment's average TCR (severity share of cases).

2017=13.4 · 2018=10.6 · 2020=75.0 · 2021=0.7 · 2022=3.6 · 2023=10.3

OSHA ITA Form 300A scorecard

Establishment book 238110 · Riverside, IA ABOVE-IND · SMALL

Grade F · TCR 7.7 · 276% of ind

DART 3.4 DART
RANK #20/32
PHOTO Advance Poured Walls
BOOK 6y book
INJ 18 inj
SIZE ~33 FTE

Nearest TCR peer: Advance Poured Walls (0.0 TCR gap)

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

This site

7.7
Advance Poured

7.7
Builders Plus

7.7
Gunite Special

7.7
Burgess Concre

7.7

What this shows Duwa's Quality Walls, Inc averages 7.7 TCR (276% of the Footing and foundation concrete contractors BLS benchmark).

Duwa's Quality Walls, Inc TCR series: 2017=13.4 · 2018=10.6 · 2020=75 · 2021=0.7 · 2022=3.6 · 2023=10.3 · BLS 2.8

Where Duwa's Quality Walls, Inc falls in its industry

1,314 Footing and foundation concret establishments

Safer than 18% of graded establishments in this industry, whose median TCR is 3.8.

Grade F

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 32 Footing and foundation concret employers in Iowa.

Duwa's Quality Walls, Inc (33 employees, TCR 7.7) among 29 same-industry peers, split at the industry median of 64 employees and a TCR of 3.8

Duwa's Quality Walls, Inc has fewer employees than the Footing and foundation concrete contract median and a higher injury rate than the industry's median TCR of 3.8. 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
2023	10.3	3.4	3	0
2022	3.6	3.6	1	0
2021	0.7	0.3	2	0
2020	75.0	25.0	6	0
2018	10.6	7.1	2	1
2017	13.4	0.0	4	0

OSHA ITA peer cross-reference

Establishment peer ledger

238110 · IA · Riverside

1,314 Footing and foundation concrete contractors employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 3 employers in Riverside, IA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Advance Poured Walls	KALAMAZOO, MI	7.7 TCR
NAICS-TCR	Builders Plus Construction, LLC	WICHITA, KS	7.7 TCR
NAICS-TCR	Gunite Specialists, Inc	AMBLER, PA	7.7 TCR
NAICS-TCR	Burgess Concrete Construction, Inc	MOLINE, MI	7.7 TCR
STATE-SIZE	Beck's Marshalltown	MARSHALLTOWN	33 FTE
STATE-SIZE	Select Genetics IA Hatchery & Logistics	OSCEOLA	33 FTE
STATE-SIZE	East-Central Iowa Rural Electric Cooperative	URBANA	33 FTE
STATE-SIZE	Keokuk Contractors LLC	KEOKUK	33 FTE
CITY-NEAR	Absolute Outdoor Services Inc.	Riverside	38 FTE
CITY-NEAR	Larry Yoder Masonry, Inc.	Riverside	20 FTE
NAT-TCR	Omaha Zoological Society	Omaha, NE	7.7 TCR
NAT-TCR	Eagle Machine	Union Gap, WA	7.7 TCR
NAT-TCR	Community Center	Batavia, NY	7.7 TCR
NAT-TCR	Spendrup Fan Company	Grand Junction, CO	7.7 TCR
NAT-SIZE	Sacramento Pocket Grocery Outlet	Sacramento, CA	33 FTE
NAT-SIZE	Helapan, Inc.	Guaynabo, PR	33 FTE
NAT-SIZE	St Clair Cleaners, Inc	St. Clairsville, OH	33 FTE
NAT-SIZE	Goodwill CFL - N Melb	Melbourne, FL	33 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: 2023, 2022, 2021, 2020, 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.