Flagging (i.e., traffic control) services · California

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent.

Somis, CA · ~25 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.1
Avg TCR
2.6
Industry avg
0
Fatalities
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The verdict

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. runs at 119% of its industry's injury rate - about level with the typical Flagging (i.e., traffic control) services workplace, earning a grade C.

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent.: 3.1 TCR = 119% of Flagging (i.e., traffic control) services BLS 2.6 · 3y Form 300A (see methodology below)

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. safety composite

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 8%), 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

36/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.1 per 100 workers

Safer than 50% of industry peers

DART rate
F 6.9 per 100 workers

Safer than 8% 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%).

Rising injury rate

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent.: 0.0 → 6.9 TCR

Peak year 2023 @ 6.9 TCR · DART/TCR 2.23× in 2023

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent.'s TCR rose 6.9 from 0.0 in 2020 to 6.9 in 2023. In 2023, DART was 2.23× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 561990 · Somis, CA ABOVE-IND · SMALL

Grade C · TCR 3.1 · 119% of ind

  • DART 6.9 DART
  • RANK #15/20
  • PHOTO Alkon
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~25 FTE

Nearest TCR peer: Alkon (0.0 TCR gap)

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

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. in the TCR neighbourhood

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

TCR

What this shows Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. averages 3.1 TCR (119% of the Flagging (i.e., traffic control) services BLS benchmark).

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

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. TCR series: 2020=0 · 2022=2.4 · 2023=6.9 · BLS 2.6

Where Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. falls in its industry

208 Flagging (i.e., traffic contro establishments

Safer than 50% of graded establishments in this industry, whose median TCR is 3.1.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #15 safest of 20 Flagging (i.e., traffic contro employers in California.

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. (25 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.1 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 Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent.
Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. (25 employees, TCR 3.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.1

Sierra Traffic Service /Sierra Barricade Service /Terry Traffic Ent. has fewer employees than the Flagging (i.e., traffic control) service median and a higher injury rate than the industry's median TCR of 3.1. 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
2023 6.9 6.9 2 0 0
2022 2.4 2.4 1 0 0
2020 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

561990 · CA · Somis

208 Flagging (i.e., traffic control) services employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 8 employers in Somis, CA · 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 Alkon 3.1 TCR
NAICS-TCR Heath Consultants Incorporated--Tucson 3.1 TCR
NAICS-TCR Shred-it USA - Portland,OR 3.1 TCR
NAICS-TCR Crews Control, LLC 3.1 TCR
STATE-SIZE Conservation Farms Ranches 25 FTE
STATE-SIZE GM Ag Services, Inc. 25 FTE
STATE-SIZE Farm Shop 25 FTE
STATE-SIZE Dougherty Brothers 25 FTE
CITY-NEAR UNDERWOOD FAMILY FARMS LP 91 FTE
CITY-NEAR West Coast Harvesting Inc. 82 FTE
CITY-NEAR HAGLE LUMBER COMPANY 68 FTE
CITY-NEAR Grether Farming Company, Inc 44 FTE
NAT-TCR Parkdale America LLC Plant 29 3.1 TCR
NAT-TCR Craft Beer Guild Distributing of Connecticut, LLC 3.1 TCR
NAT-TCR Ellis Island Casino 3.1 TCR
NAT-TCR Area Energy & Electric, Inc. Columbus 3.1 TCR
NAT-SIZE Swift County Homes, Inc 25 FTE
NAT-SIZE Westonka ISD #277-ESC 25 FTE
NAT-SIZE Fayetteville Office 25 FTE
NAT-SIZE IGPS Austell 25 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, 2020. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.