ROCK TRANSFER & STORAGE INC

AUTHORIZED
6130 S 13TH ST, MILWAUKEE, WI, 53221|(414) 570-2180

USDOT

222303

MC Number

154255

Fleet Size

40

Total Drivers

50

Last updated: March 16, 2026

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Safety overview

ROCK TRANSFER & STORAGE INC is a mid-size interstate motor carrier based in MILWAUKEE, Wisconsin, operating 40 power units with 50 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 2.4% comes in under the 5.51% national average. They have 6 crashes on file (2 with injuries). FMCSA records show 42 inspections for this carrier.

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BASIC scores

Under review

CarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.

BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.

Out-of-service rates vs. national average

An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.

Driver OOS rate2.4%
National average5.5%
Vehicle OOS rate23.1%
National average20.7%

For reference, the average driver OOS rate in Wisconsin is 8.1% and the average vehicle OOS rate is 27.4% across 62,850 carriers.

Company details

Entity Type
N/A
Carrier Operation
Interstate
Operation Classification
Authorized For Hire
Cargo Carried
N
Hazmat
No
Safety Rating Date
N/A

Inspections

42

Total

62%

Driver %

Driver Inspections42
Vehicle Inspections26
Driver OOS Rate2.4%
Vehicle OOS Rate23.1%

Insurance on file

Liability (BIPD)

GREAT WEST CASUALTY CO. — eff. Sep 1, 2025

$1,000,000ACTIVE

Cargo

RLI INSURANCE COMPANY — eff. Jan 1, 2011

On fileACTIVE

Surety Bond

Not on file

Trust Fund

Not on file

Crash history

6

Total Crashes

Fatal Crashes0
Injury Crashes2
Tow Crashes6

Frequently asked questions

Is ROCK TRANSFER & STORAGE INC authorized to operate?

Yes. ROCK TRANSFER & STORAGE INC (USDOT #222303) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.

What is ROCK TRANSFER & STORAGE INC's safety record?

ROCK TRANSFER & STORAGE INC has 42 inspections on file and 6 crashes on record. They do not show a formal FMCSA safety rating in CarrierOwl's current data. CarrierOwl is validating BASIC percentile display against the official FMCSA SMS portal, so brokers should verify current BASIC percentiles directly with FMCSA before relying on them.

How many trucks does ROCK TRANSFER & STORAGE INC operate?

ROCK TRANSFER & STORAGE INC operates 40 power units with 50 drivers on file. That puts them in the mid-size range.

Does ROCK TRANSFER & STORAGE INC transport hazardous materials?

No. ROCK TRANSFER & STORAGE INC does not have a hazardous materials flag in the FMCSA database.

Where is ROCK TRANSFER & STORAGE INC located?

ROCK TRANSFER & STORAGE INC is based in MILWAUKEE, Wisconsin at 6130 S 13TH ST, 53221. Phone: (414) 570-2180.

What are ROCK TRANSFER & STORAGE INC's out-of-service rates?

ROCK TRANSFER & STORAGE INC's driver out-of-service rate is 2.4%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 23.1% (national average: 20.72%).