Carrier profile · USDOT 3394179 · Updated Jul 26, 2026

Shamrock Sand and Rock LLC

3 power unitsavg 7 yrLocal · 1 statesESCONDIDO, CA50/100

AUTHORITY STATUS UNKNOWNHAZMAT

Observed fleet · trailing 24 mo daily

3Power units

1 observed · MCS-150

—Trailers seen

None observed · 24 mo

7.0Avg age (yr)

2019–2019 · vPIC

Call dispatch(760) 745-0556 Email dispatchdittmerm@vmcmail.com

Click to see how we scored it

Load decision · FMCSA snapshot · Jul 26, 2026

Limited record

Not enough federal record to assess. Verify authority and insurance directly.

Watch · 1

Not enough inspection history to rate1 federal roadside inspection in the last 24 months. FMCSA itself will not score a carrier's vehicle or driver record on fewer than 5, and neither will we — verify authority, insurance and references directly before tendering.

In good standing · 1

Established 7 yearsOperating authority has been on file since 2020.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo0.0%

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo0.0%

Crashes · fatal

Clean · 24 mo

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

Fleet typeIdentity

Small fleet

3 power units. Brokers price each fleet type apart.

Fleet age vs peersTypical

7 yr

Model years 2019–2019 · peer benchmark unavailable.

Identity stabilityStable

6 yr unchanged

Same registration since 2020 — no chameleon / reincarnation signal.

Safety

1 inspections · 24 mo

Out-of-service rate· 24-mo cumulative

Vehicle OOS 0.0%24-mo cumulative

050%

Driver OOS 0.0%24-mo cumulative

030%

Every inspection in the window pooled — 1 vehicle and 1 driver inspections over 24 months.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

No roadside inspections on the FMCSA record in this window

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.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.2 / unit·yr

thin signalabundant signal

Few roadside inspections for a 3-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 3
Inspections · 24 mo: 1
Annualized: ≈1 / yr
Coverage: ≈0.2 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.

172.205 Other violationOther1 · 0 OOS
390.21 USDOT number marking on vehicleUnsafe Driving1 · 0 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving1 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance1 · 0 OOS
396.3 Inspection / repair / maintenance not performedVehicle Maintenance1 · 0 OOS
397.3 Hazardous materials transportHM Compliance1 · 0 OOS

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

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 3
Observed power (24 mo): 1
Trailers (towed): 0

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

Fleet age· model years · decoded VINs

7.0 yr

Average age

2019

Newest model yr

2019

Oldest model yr

100.0%

VINs decoded

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

ESCONDIDO, CA

1508 MISSION RD

Top corridor

CA 1

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

Shares a registration email domain with other carriers

@vmcmail.com — 32 carriers: USDOT 161517 USDOT 226100 USDOT 321337 USDOT 333724 USDOT 337863 USDOT 390640 USDOT 396430 USDOT 399145

Shares a company officer with other carriers

james polomsky — 3 carriers: USDOT 434988 USDOT 1024955

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & Federal

FMCSA census + L&I dossier

Location

Physical address: 1508 MISSION RD, ESCONDIDO, CA, 92029-1105
Operation: Intrastate (Non-Hazmat)· Hazmat

Contact

Phone: (760) 745-0556
Email: dittmerm@vmcmail.com
Web domain: vmcmail.com

Registration

Officer: James Polomsky
USDOT / docket: 3394179
First registered: Feb 11, 2020
Last MCS-150: Jun 20, 2025 · 45,000 mi (2025)
FMCSA safety rating: Not rated
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

45,000

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

No verified reviews yet

Be the first broker or shipper to rate SHAMROCK SAND AND ROCK LLC. Reviews cover performance only — on-time delivery, payment speed, communication — and never affect the Vektor risk score.

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Verification summaryAuthority, insurance, safety and identity facts for SHAMROCK SAND AND ROCK LLC.

SHAMROCK SAND AND ROCK LLC (USDOT 3394179) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Jul 26, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jul 26, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jul 26, 2026.

Its vehicle out-of-service rate was 0.0% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jul 26, 2026.

The carrier received 1 roadside inspections in the last 24 months — 1 vehicle-level and 1 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Jul 26, 2026.

The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Jul 26, 2026.

It reports 3 power units and 2 drivers in its most recent MCS-150 filing dated Jun 20, 2025.

It has no FMCSA-assigned safety rating in the federal record refreshed Jul 26, 2026.

Frequently asked

What is SHAMROCK SAND AND ROCK LLC's USDOT number?

SHAMROCK SAND AND ROCK LLC's USDOT number is 3394179.

Is SHAMROCK SAND AND ROCK LLC authorized to operate?

As of Jul 26, 2026, SHAMROCK SAND AND ROCK LLC is active in the FMCSA register.

What is SHAMROCK SAND AND ROCK LLC's safety record?

SHAMROCK SAND AND ROCK LLC has a 0.0% vehicle out-of-service rate (national average 22.26%) across 3 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor does not assign this carrier a safety score: 1 federal roadside inspection in the last 24 months. FMCSA itself will not score a carrier's vehicle or driver record on fewer than 5, and neither will we — verify authority, insurance and references directly before tendering.

How big is SHAMROCK SAND AND ROCK LLC's fleet?

SHAMROCK SAND AND ROCK LLC operates 3 power units and 2 drivers per its most recent MCS-150 filing.

Where is SHAMROCK SAND AND ROCK LLC based?

SHAMROCK SAND AND ROCK LLC is based in ESCONDIDO, CA, with roadside inspections recorded across 1 state.

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