MATERIAL DELIVERY INC
DBA MDI ROCK
See what’s behind this grade
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- Expected crashes over the next 12 months, against similar fleets
- What drives the grade: crash history and roadside record
- Worth a closer look: the flags to ask about, with the questions
- How it compares with similar fleets, per power unit and per mile
- Cargo risk, and news reports linked to its crashes
- How the grade is calculated, and its history week by week
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Fleet, registration and cargo
Fleet and equipment
- Power units
- 40 all owned
- Drivers · CDL
- 19 · 19
- Annual miles
- 1.3M ~32k per unit
| Type | Own | Term | Trip | Total |
|---|---|---|---|---|
| Trucks | 31 | 0 | 0 | 31 |
| Tractors | 9 | 0 | 0 | 9 |
| Trailers | 38 | 0 | 0 | 38 |
Registration
- Operation
- Intrastate (non-hazmat)
- Authority type
- Authorized For-Hire
- Registered
- Nov 5, 2007 (19 yrs)
- MCS-150 update
- Aug 19, 2025
- Officer
- MICHAEL DENNY
- Phone
- (602) 569-8722
- miked@mdfrock.com
- Address
- 2815 E Rose Garden Ln, Phoenix AZ 85050
Cargo
FMCSA status today
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Roadside and crash record
FMCSA record, Oct 2024 – Aug 2026Violations
56 on the FMCSA record, Oct 2024 – Aug 2026-
Vehicle maintenance No alert52 · 16 out-of-serviceBrakes 18 · Lights 11 · Tires 4 · Steering & suspension 3 · Cargo securement 2 · 14 more
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Unsafe driving No alert3 · 0 out-of-serviceSeat belt 2 · Speeding 1
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Driver fitness No alert1 · 1 out-of-serviceNo valid CDL 1
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Hours of service No alert0
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Drugs & alcohol No alert0
Violations by quarter
Tap a category to show or hide itCrashes
FMCSA record, Oct 2024 – Aug 2026 · crash reports through Sep 15, 2026-
Sep22026Sep 2, 2026 · ArizonaProperty damage onlyDaylight, two-way trafficway divided unprotected median.
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Apr32026Apr 3, 2026 · ArizonaProperty damage onlyDaylight, two-way trafficway divided unprotected median.
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Oct32024Oct 3, 2024 · ArizonaInjury · 1 person hurtDaylight, two-way trafficway divided unprotected median.
1 of the 3 crashes hurt someone but killed no one.
Insurance filed with FMCSA
The live FMCSA check isn't on hand; see FMCSA status today.
No MC, FF or MX docket on FMCSA's registration for this motor carrier, so there are no insurance filings to show. FMCSA collects filings only from registered for-hire authorities; other motor carriers keep proof of insurance (MCS-90) at their place of business.
FMCSA filings only, not a policy audit. Not part of the FRED grade. Wrong or out of date?
Where it operates
Map: inspections and crashes from FMCSA's weekly files over 24 months.
- Arizona (HQ) 13
FMCSA records
BASIC measures and every inspection, violation and crash, sortable and filterable.
| BASIC | Inspections with violations | Measure | Alert |
|---|---|---|---|
| Vehicle maintenance | 13 | 14.66 | No alert |
| Unsafe driving | 3 | 0.43 | No alert |
| Driver fitness | 1 | 0.28 | No alert |
| Hours of service | 0 | 0.00 | No alert |
| Drugs & alcohol | 0 | 0.00 | No alert |
13 driver inspections · 13 vehicle inspections
These records come from FMCSA's Safety Measurement System, Oct 2024 – Aug 2026; the grade counts crashes Oct 1, 2023 – Sep 30, 2026 and inspections Nov 1, 2024 – Oct 31, 2026 from FMCSA's weekly files, so counts can differ.
FMCSA's SMS profile →