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USDOT 516591

Underground Construction — compliance record

The full vetting file: federal registrations, authority history, insurance, inspections, record changes, and recent coverage — the checks a broker or shipper runs, in one place.

Vetting summary

✓

Inspections

125 on file

✓

Out-of-service

Within normal range vs national averages

✓

Email identity

Company domain, matches website

Federal identity

Registration snapshot

Legal name

Underground Construction Co Inc

DBA

Underground Construction

Entity type

Carrier

Physical address

5145 Industrial Way, Benicia, CA 94510

Phone

(707) 746-8800

Power units

301

Drivers

471

First on record

—

Last MCS-150 filing

—

Hazmat flag

No

Operating authority

Dockets & filings

No L&I dockets on file for this DOT number.

Out-of-service rates

Driver OOS

1.6%

National average ≈ 5.9% · 125 inspections on record

Vehicle OOS

8.8%

National average ≈ 20.9% · 125 inspections on record

Email & web forensics

✓

On-file email

jdeleon@undergroundconstruction.com — company domain

✓

Domain age

undergroundconstruction.com registered 2004-06-09 (22 years)

✓

Mail host

Microsoft 365

✓

Domain match

Email domain matches the company website

From the FMCSA on-file contact, public domain registration (RDAP), and live DNS.

Crash record — last 24 months

0

Reportable crashes

0

Tow-aways

0

With injuries

0

With fatalities

Most recent: CA 05/2023 · AZ 03/2023 · AZ 02/2023 — from the federal crash file; recordable crashes regardless of fault.

Safety record

Inspection history

2026: 122025: 362024: 512023: 26
Level I — Full: 81Level II — Walk-around: 24Level III — Driver-only: 19Level V — Vehicle-only: 1
DateStateLevel
Jun 26, 2026CALevel I — Full
Jun 24, 2026CALevel I — Full
Jun 15, 2026CALevel III — Driver-only
Jun 12, 2026CALevel III — Driver-only
May 5, 2026CALevel II — Walk-around
Apr 30, 2026CALevel III — Driver-only
Apr 28, 2026CALevel III — Driver-only
Apr 16, 2026CALevel I — Full
Apr 13, 2026CALevel III — Driver-only
Mar 17, 2026CALevel I — Full
Mar 5, 2026CALevel I — Full
Mar 4, 2026CALevel I — Full
Dec 16, 2025CALevel III — Driver-only
Nov 18, 2025CALevel I — Full
Oct 28, 2025CALevel I — Full
Oct 23, 2025CALevel I — Full
Oct 14, 2025CALevel II — Walk-around
Oct 9, 2025CALevel I — Full
Oct 3, 2025CALevel I — Full
Sep 23, 2025CALevel I — Full
Sep 22, 2025CALevel III — Driver-only
Sep 18, 2025CALevel II — Walk-around
Sep 11, 2025CALevel II — Walk-around
Jul 29, 2025CALevel I — Full
Jul 24, 2025CALevel I — Full
Jul 14, 2025CALevel III — Driver-only
Jul 8, 2025CALevel I — Full
Jun 25, 2025CALevel III — Driver-only
May 29, 2025CALevel I — Full
May 22, 2025CALevel II — Walk-around
May 14, 2025CALevel I — Full
Apr 25, 2025CALevel I — Full
Apr 22, 2025CALevel I — Full
Apr 16, 2025CALevel III — Driver-only
Mar 26, 2025CALevel II — Walk-around
Mar 13, 2025CALevel II — Walk-around
Mar 6, 2025CALevel II — Walk-around
Mar 5, 2025CALevel I — Full
Feb 26, 2025CALevel I — Full
Feb 21, 2025CALevel I — Full
Feb 18, 2025CALevel I — Full
Feb 13, 2025CALevel I — Full
Feb 7, 2025CALevel II — Walk-around
Feb 7, 2025CALevel I — Full
Feb 5, 2025CALevel II — Walk-around
Jan 29, 2025CALevel I — Full
Jan 27, 2025CALevel I — Full
Jan 15, 2025CALevel I — Full
Dec 20, 2024CALevel I — Full
Dec 19, 2024CALevel I — Full
Dec 12, 2024CALevel II — Walk-around
Dec 11, 2024CALevel I — Full
Dec 11, 2024CALevel I — Full
Nov 14, 2024CALevel I — Full
Oct 12, 2024CALevel III — Driver-only
Oct 8, 2024CALevel I — Full
Sep 26, 2024CALevel I — Full
Sep 16, 2024CALevel I — Full
Sep 11, 2024CALevel II — Walk-around
Sep 10, 2024CALevel I — Full
Sep 4, 2024CALevel III — Driver-only
Sep 4, 2024CALevel II — Walk-around
Aug 26, 2024CALevel I — Full
Aug 22, 2024CALevel II — Walk-around
Aug 20, 2024CALevel I — Full
Aug 19, 2024CALevel I — Full
Aug 15, 2024CALevel II — Walk-around
Aug 15, 2024CALevel I — Full
Aug 8, 2024CALevel I — Full
Aug 7, 2024CALevel I — Full
Aug 5, 2024CALevel I — Full
Jul 26, 2024CALevel I — Full
Jul 25, 2024CALevel II — Walk-around
Jul 22, 2024CALevel III — Driver-only
Jul 16, 2024CALevel II — Walk-around
Jul 16, 2024CALevel I — Full
Jun 26, 2024CALevel I — Full
Jun 25, 2024CALevel I — Full
Jun 18, 2024CALevel III — Driver-only
Jun 18, 2024CALevel I — Full
Jun 12, 2024CALevel I — Full
Jun 7, 2024CALevel I — Full
May 20, 2024CALevel I — Full
May 15, 2024CALevel I — Full
May 9, 2024CALevel II — Walk-around
Apr 4, 2024CALevel I — Full
Mar 29, 2024CALevel III — Driver-only
Mar 19, 2024CALevel I — Full
Mar 4, 2024CALevel II — Walk-around
Feb 26, 2024CALevel I — Full
Feb 26, 2024CALevel I — Full
Feb 26, 2024CALevel II — Walk-around
Feb 9, 2024CALevel I — Full
Jan 26, 2024CALevel I — Full
Jan 19, 2024CALevel I — Full
Jan 10, 2024CALevel III — Driver-only
Jan 3, 2024CALevel II — Walk-around
Jan 2, 2024CALevel I — Full
Jan 2, 2024CALevel II — Walk-around
Dec 21, 2023CALevel III — Driver-only

Most recent 100 of 125 inspections on file.

Activity log

Record changes

TenFourHQ re-syncs the federal record daily and logs every field that changes — address moves, fleet-size jumps, authority flips. Sudden changes are a classic fraud tell.

No changes recorded since TenFourHQ began tracking this company.

In the news

Recent coverage

Robert Consani - The Press Democrat

The Press Democrat · 6/20/2026

W.A. Rasic is ENR California & Northwest's 2021 Specialty Contractor of the Year - Engineering News-Record (ENR)

Engineering News-Record (ENR) · 11/18/2021

Up to 2.1 Million U.S. Construction Workers Are Illegally Misclassified or Paid Off the Books - The Century Foundation

The Century Foundation · 11/12/2023

From the (under)ground up - Victorville Daily Press

Victorville Daily Press · 3/12/2011

JOHN LAMBERSON Obituary (2012) - San Francisco, CA - San Francisco Chronicle - Legacy obituary

Legacy obituary · 10/8/2021

Via Google News — headlines may include similarly-named companies; verify before acting.

Vetting toolkit

Verify it yourself

FMCSA SAFER snapshot ↗

The official company snapshot, straight from FMCSA.

FMCSA SMS safety profile ↗

Safety Measurement System — BASIC scores and crash history.

L&I authority record ↗

Licensing & Insurance: authority, insurance, and BOC-3 on file.

Search court records ↗

Quick sweep for litigation and judgments.

Sources: FMCSA Motor Carrier Census, Licensing & Insurance, inspection and revocation files at data.transportation.gov (synced daily by TenFourHQ), plus Google News. This page is a research aid, not a safety rating; records shown as published. TenFourHQ is not affiliated with FMCSA.