R H HUMMER JR INC
AUTHORIZEDUSDOT
341659
MC Number
171214
Fleet Size
27
Total Drivers
21
FMCSA-derived snapshot updated: August 2, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
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Safety overview
R H HUMMER JR INC is a mid-size interstate motor carrier based in WILLIAMSBURG, Iowa, operating 27 power units with 21 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 0.0% comes in under the 6.7% national average. They have 4 crashes on file (1 with injuries). FMCSA records show 24 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl 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.
For reference, the average driver OOS rate in Iowa is 7.2% and the average vehicle OOS rate is 29.5% across 26,389 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
24
Total
80%
Driver %
Insurance on file
Liability (BIPD)
GREAT WEST CASUALTY CO. — eff. May 1, 2025
Cargo
LEXINGTON INSURANCE COMPANY — eff. May 1, 2010
Surety Bond
Not on file
Trust Fund
Not on file
Source: Legacy FMCSA. Verify current filings directly with FMCSA before relying on them.
Crash history
4
Total Crashes
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Other carriers in the same state with a similar fleet size.
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Frequently asked questions
Is R H HUMMER JR INC authorized to operate?
CarrierOwl's FMCSA-derived snapshot for R H HUMMER JR INC (USDOT #341659) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is R H HUMMER JR INC's safety record?
R H HUMMER JR INC has 24 inspections in CarrierOwl's current imported snapshot and 4 matching crashes. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does R H HUMMER JR INC operate?
R H HUMMER JR INC operates 27 power units with 21 drivers on file. That puts them in the mid-size range.
Does R H HUMMER JR INC transport hazardous materials?
No. R H HUMMER JR INC does not have a hazardous materials flag in the FMCSA database.
Where is R H HUMMER JR INC located?
R H HUMMER JR INC is based in WILLIAMSBURG, Iowa at 2141 P AVENUE, 52361. Phone: (319) 668-8800.
What are R H HUMMER JR INC's out-of-service rates?
R H HUMMER JR INC's driver out-of-service rate is 0.0%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 33.3%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record.