Aqueduct construction · California

Blocka Construction Inc.

Name: Blocka Construction Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Fremont, CA · ~76 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.7
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Blocka Construction Inc. runs at 24% of its industry's injury rate - far safer than the typical Aqueduct construction workplace, earning a grade A.

Blocka Construction Inc.: 0.7 TCR = 24% of Aqueduct construction BLS 2.8 · 2y Form 300A (see methodology below)

Blocka Construction Inc. safety composite

Blocka Construction Inc. scores strongest on total case rate (tcr) (safer than 94% 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).

78/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0.67 per 100 workers

Safer than 94% of industry peers
DART rate: B 0 per 100 workers

Safer than 79% 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

−1.3

2017→2021

Blocka Construction Inc. injury rate improved

Blocka Construction Inc.'s TCR fell 1.3 from 1.3 in 2017 to 0.0 in 2021. Peak filing year was 2017 at 1.3 TCR. In 2021, DART was 0× this establishment's average TCR (severity share of cases).

2017=1.3 · 2021=0.0

OSHA ITA Form 300A scorecard

Establishment book 237110 · Fremont, CA AT/BELOW-IND · SMALL

Grade A · TCR 0.7 · 24% of ind

DART 0.0 DART
RANK #10/201
PHOTO Site Contractor
BOOK 2y book
INJ 1 inj
SIZE ~76 FTE

Nearest TCR peer: Site Contractor (0.0 TCR gap)

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

This site

0.7
Site Contracto

0.7
Progressive Co

0.7
CUSTOM DRILLIN

0.7
ILIAD, INC.

0.7

What this shows Blocka Construction Inc. averages 0.7 TCR (24% of the Aqueduct construction BLS benchmark).

Blocka Construction Inc. TCR series: 2017=1.3 · 2021=0 · BLS 2.8

Where Blocka Construction Inc. falls in its industry

1,614 Aqueduct construction establishments

Safer than 94% of graded establishments in this industry, whose median TCR is 3.0.

Grade A

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #10 safest of 201 Aqueduct construction employers in California.

Blocka Construction Inc. (76 employees, TCR 0.7) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 3.0

Blocka Construction Inc. has more employees than the Aqueduct construction median and a lower 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
2021	0.0	0.0	0	0	0
2017	1.3	0.0	1	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

237110 · CA · Fremont

1,614 Aqueduct construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 348 employers in Fremont, CA · 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	Site Contractor	WILLIAMSBURG, VA	0.7 TCR
NAICS-TCR	Progressive Contracting, Inc.	ST. GEORGE, UT	0.7 TCR
NAICS-TCR	CUSTOM DRILLING SERVICES, INC.	MULBERRY, FL	0.7 TCR
NAICS-TCR	ILIAD, INC.	SEATTLE, WA	0.7 TCR
STATE-SIZE	CAL-O ADMINISTRATION	LAMONT	76 FTE
STATE-SIZE	3181_6797	GUINDA	76 FTE
STATE-SIZE	J&J Labor,Inc.	HOLLISTER	76 FTE
STATE-SIZE	Fujishige Farms, Inc.	IRVINE	76 FTE
CITY-NEAR	NA-US-CA-Fremont-45500 Fremont Blvd	Fremont	21,378 FTE
CITY-NEAR	NA-US-CA-Fremont-Factory	Fremont	12,707 FTE
CITY-NEAR	California Department of Transportation Facility 517	Fremont	2,891 FTE
CITY-NEAR	Lam Research Corp. Fremont Campus	Fremont	2,887 FTE
NAT-TCR	Simone Engineering	Columbus, OH	0.7 TCR
NAT-TCR	Prior Building	Newbury, OH	0.7 TCR
NAT-TCR	Recreacion Y Deportes	San Lorenzo, PR	0.7 TCR
NAT-TCR	Southwest Infiniti	Houston, TX	0.7 TCR
NAT-SIZE	FT Group, LLC.	Bristol, IN	76 FTE
NAT-SIZE	Drillers F &B LLC	Tulsa, OK	76 FTE
NAT-SIZE	Blue Grass Manufacturing Co. of Lexington, Inc	Lexington, KY	76 FTE
NAT-SIZE	Little Canada	Little Canada, MN	76 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: 2021, 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.