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Carrier profile · USDOT 2852133 · Updated 06/13/2026

TERRACON CONSTRUCTORS INC

5 power unitsLocal · 1 statesHEALDSBURG, CA

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

5Power units

4 observed · MCS-150

—Trailers seen

None observed · 24 mo

13.8Avg age (yr)

2012–2013 · vPIC

Call dispatch(707) 433-0323

Carrier verification summary for TERRACON CONSTRUCTORS INC

TERRACON CONSTRUCTORS INC (USDOT 2852133) has a Vektor safety score of 96/100 and a Clear to load verdict, computed deterministically from the FMCSA record refreshed 06/13/2026.

TERRACON CONSTRUCTORS INC (USDOT 2852133) has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of 06/13/2026.

TERRACON CONSTRUCTORS INC (USDOT 2852133) has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot row is available as of 06/13/2026.

TERRACON CONSTRUCTORS INC (USDOT 2852133) has a 0.0% vehicle out-of-service rate over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed 06/13/2026.

TERRACON CONSTRUCTORS INC (USDOT 2852133) has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of 06/13/2026.

TERRACON CONSTRUCTORS INC (USDOT 2852133) reports 5 power units and 6 drivers in its most recent MCS-150 filing dated 03/14/2024.

TERRACON CONSTRUCTORS INC (USDOT 2852133) has no FMCSA-assigned safety rating in the federal record refreshed 06/13/2026.

Click to see how we scored it

Load decision · FMCSA snapshot · 2026-06-13

Clear to load

Active authority and a clean federal record. No blocking issues found.

Established 10 yearsOut-of-service rates below national average

Watch · 1

MCS-150 update dueThe biennial MCS-150 update is overdue.

In good standing · 2

Established 10 yearsOperating authority has been on file since 2016.Out-of-service rates below national averageBoth vehicle and driver OOS rates beat the national benchmark across 9 inspections.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo

0.0

▼ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo

0.0

▼ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Small fleet

5 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

—

Awaiting VIN decode

Identity stabilityStable

10 yr unchanged

Same registration since 2016 — no chameleon / reincarnation signal.

Safety

5 inspections · 24 mo · vs national benchmarks

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 0.0%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 2 vehicle and 5 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

0.0% · latest 6-mo window● Steady

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Holding steady across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Expected band

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.5 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 5-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 5
Inspections · 24 mo: 5
Annualized: ≈3 / yr
Coverage: ≈0.5 inspections / unit · yr

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving4
393.60 Windshield / glazingVehicle Maintenance1
393.9 Inoperative required lampsVehicle Maintenance1

Explore full safety record — inspections, BASICs, crashes

Authority & insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 5
Observed power (24 mo): 4
Trailers (towed): 0

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & lanes

Revealed by inspection density across 1 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal

revealed

States observed

US states

Inspections · 24 mo

CA busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

HEALDSBURG, CA

150 ALEXANDER VALLEY RD

Top corridor

CA 5

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & fraud

Affiliated entities & reincarnation signals · for review, not a verdict

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.

Show all-time history (1 truck · 1 carriers)

Across all inspections on record: USDOT 1335807

Shares a company officer with other carriers

steve j lydon — 2 carriers: USDOT 2688377

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Shared w/ other carriers

Registered and roadside-observed capacity are broadly consistent.

Explore the carrier network & VIN cross-links

Identity & contact

FMCSA census + L&I dossier

Location

Physical address: 150 ALEXANDER VALLEY RD, HEALDSBURG, CA, 95448
Mailing address: PO BOX 276, HEALDSBURG, CA, 95448
Operation: Intrastate (Non-Hazmat)

Contact

Phone: (707) 433-0323
Email: —

Registration

Officers: Steve J Lydon · Michael Lydon
USDOT / docket: 2852133
First registered: 02/16/2016
Last MCS-150: 03/14/2024 · 50,000 mi (2023)
FMCSA safety rating: Not rated
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

50,000

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

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Frequently asked

What is TERRACON CONSTRUCTORS INC's USDOT number?

TERRACON CONSTRUCTORS INC's USDOT number is 2852133.

Is TERRACON CONSTRUCTORS INC authorized to operate?

As of 2026-06-13, TERRACON CONSTRUCTORS INC is active in the FMCSA register.

What is TERRACON CONSTRUCTORS INC's safety record?

TERRACON CONSTRUCTORS INC has a 0.0% vehicle out-of-service rate (national average 22.26%) across 9 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 96/100 (tier: clear).