Natural gas pipeline construction · California

Underground Construction Co Inc

Benicia, CA · ~516 workers · 2 years of OSHA Injury Tracking Application data.

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

Underground Construction Co Inc runs at 26% of its industry's injury rate - far safer than the typical Natural gas pipeline construction workplace, earning a grade A.

Underground Construction Co Inc: 0.7 TCR = 26% of Natural gas pipeline construction BLS 2.8 · 2y Form 300A (see methodology below)

Underground Construction Co Inc safety composite

Underground Construction Co Inc scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 29%), 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

43/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 0.72 per 100 workers

Safer than 50% of industry peers

DART rate
F 0.35 per 100 workers

Safer than 29% 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

Underground Construction Co Inc: 0.4 → 1.1 TCR

Peak year 2022 @ 1.1 TCR · DART/TCR 0.49× in 2022

Underground Construction Co Inc's TCR rose 0.7 from 0.4 in 2017 to 1.1 in 2022. In 2022, DART was 0.49× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 237120 · Benicia, CA AT/BELOW-IND · MID

Grade A · TCR 0.7 · 26% of ind

  • DART 0.3 DART
  • RANK #26/45
  • PHOTO M. O'Herron Company
  • BOOK 2y book
  • INJ 10 inj
  • SIZE ~516 FTE

Nearest TCR peer: M. O'Herron Company (0.0 TCR gap)

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

Underground Construction Co Inc in the TCR neighbourhood

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

TCR

What this shows Underground Construction Co Inc averages 0.7 TCR (26% of the Natural gas pipeline construction BLS benchmark).

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

Underground Construction Co Inc TCR series: 2017=0.4 · 2022=1.1 · BLS 2.8

Where Underground Construction Co Inc falls in its industry

809 Natural gas pipeline construct establishments

Safer than 50% of graded establishments in this industry, whose median TCR is 0.7.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #26 safest of 45 Natural gas pipeline construct employers in California.

Underground Construction Co Inc (516 employees, TCR 0.7) among 29 same-industry peers, split at the industry median of 137 employees and a TCR of 0.7 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 01,0002,0003,0004,000 01234 Average employees Total Case Rate Underground Construction Co Inc
Underground Construction Co Inc (516 employees, TCR 0.7) among 29 same-industry peers, split at the industry median of 137 employees and a TCR of 0.7

Underground Construction Co Inc has more employees than the Natural gas pipeline construction median and a higher injury rate than the industry's median TCR of 0.7. 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
2022 1.1 0.3 9 0 0
2017 0.4 0.4 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

237120 · CA · Benicia

809 Natural gas pipeline construction employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 91 employers in Benicia, 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 M. O'Herron Company 0.7 TCR
NAICS-TCR Worley Field Services at Sabic Burkville 0.7 TCR
NAICS-TCR Michels Pipeline - Montana 0.7 TCR
NAICS-TCR Precision Pipeline Services 0.7 TCR
STATE-SIZE 1660 Circle B Rd. Paso Robles, CA 93465 516 FTE
STATE-SIZE Webcor Construction L.P. 516 FTE
STATE-SIZE Rudolph and Sletten 516 FTE
STATE-SIZE 2802_5346 516 FTE
CITY-NEAR California Department of Transportation Facility 484 2,891 FTE
CITY-NEAR California Department of Transportation Facility 111 2,859 FTE
CITY-NEAR Bio-Rad Laboratories Benicia Campus 649 FTE
CITY-NEAR Underground Construction - Main 625 FTE
NAT-TCR Delta Imports 0.7 TCR
NAT-TCR NurseCore of Arlington 0.7 TCR
NAT-TCR Iris Place 0.7 TCR
NAT-TCR Valassis Direct Mail, Inc. 0.7 TCR
NAT-SIZE Corporate 516 FTE
NAT-SIZE Illinois Office 516 FTE
NAT-SIZE Pitney Bowes Hebron FDR 516 FTE
NAT-SIZE Field Services 516 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: 2022, 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.