DIAMOND HILL INC
New Castle, DE · MC identifier not reported
Based in New Castle, Delaware, DIAMOND HILL INC (USDOT 1457801) operates a private fleet with 5 power units and 2 drivers. FMCSA gave it a Conditional safety rating in February 2017. Inspectors identified 2 different power units by VIN over two years, fewer than the 5 it reports.
From CarrierTrail’s copy of the FMCSA census, published Oct 28, 2026. Record present in this snapshot. Official record: SAFER · Motus
- Conditional safety rating on record
- Safety rating is more than 5 years old
Company identity and reported operations
| USDOT number | 1457801 |
|---|---|
| Legal name | DIAMOND HILL INC |
| Doing business as / DBA | Not reported |
| MC docket identifiers | Not reported |
| Reported physical address | 501 LAMBSON LANE, NEW CASTLE, DE, 19720, US |
| Reported business phone | (302) 999-0302 |
| Reported power units | 5 |
| Reported drivers | 2 |
| Reported MCS-150 date | Jan 27, 2026 |
| Company officers (as filed) | Mike Sheehan, Allyson Sheehan |
| Carrier operation | Interstate |
| Entity type | Carrier |
| Hazmat indicator | No |
| Latest FMCSA review | Compliance review · Dec 22, 2016 |
| Census status code | A |
| Safety rating | Conditional |
| Safety rating date | Feb 22, 2017 |
Fleet, equipment and drivers
DIAMOND HILL INC reports this equipment and these drivers on its MCS-150. Owned, term-leased and trip-leased units are counted separately.
No change in power units or drivers since CarrierTrail first recorded this carrier on Sep 12, 2026.
Counts as filed on the carrier’s MCS-150. Miles per power unit divides the reported annual miles by the reported power units.
Public inspection, violation and crash summary
FMCSA public SMS input records from 2024-09-25 through 2026-09-24.
4 roadside inspections between Sep 2024 and Sep 2026, in 2 states. Inspected in 4 of 25 months; busiest Aug 2026 with 1.
| Inspections | 4 |
|---|---|
| Driver out-of-service rate | 0.0% (0 of 4) |
| Vehicle out-of-service rate | 66.7% (2 of 3) |
| Violations | 2 across 2 inspections |
| Out-of-service violations | 2 |
| Crashes | 1 |
| Fatal / injury / tow-away crashes | 0 / 0 / 1 |
| Fatalities / injuries reported | 0 / 0 |
Most frequent published violation codes
393130CCHVEHeavy Vehicles/Equipment - Improper securement of heavy vehicles equipment or machinery with crawler tracks or wheels139375A3TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS1
Crash involvement does not establish fault. Inspection summaries, safety ratings and restricted BASIC measures are different concepts.
Compare the reported New Castle record
DIAMOND HILL INC reports 5 power units. The New Castle, Delaware directory contains 1,404 census records, of which 1,229 report at least one power unit.
Reported cargo and business classification
DIAMOND HILL INC reports PRIVATE PROPERTY in the census and lists 4 cargo categories.
- Building materials
- Machinery and large objects
- Construction
- Other: STONE, DIRT
Fleet size in local context
| Power units | Records | Share of all city records |
|---|---|---|
| 0 | 175 | 12.5% |
| 1 | 727 | 51.8% |
| 2–5: this carrier’s band | 357 | 25.4% |
| 6–20 | 89 | 6.3% |
| 21–100 | 52 | 3.7% |
| Over 100 | 4 | 0.3% |
| Unknown / other | 0 | 0.0% |
Record dates and observed changes
- Added to the census (not company founding date)
- Jan 31, 2006
- Carrier-reported MCS-150 filing date
- Jan 27, 2026
- Census source publication
- Oct 28, 2026 10:49 UTC
- First observed by CarrierTrail
- Sep 12, 2026 19:56 UTC
Source publication, carrier filing and our observation dates describe different events. An older filing date alone does not establish noncompliance.
Public-field differences from up to ten recent census change events are shown below.
No public-field changes are recorded in our observation window for this carrier. This does not mean the carrier never changed its details; tracking begins at the first observation shown above.
Authority and insurance
No matching authority or insurance filings were found in the latest check.
Shared contact details
How many other records in the current FMCSA census report the same phone number or the same physical address as USDOT 1457801. Companies share offices, agents and phone lines for ordinary reasons; a match is context to check, not a finding.
Explore these reported cargo categories
Building materialsMachinery and large objects
Compare declared categories across states.
Check the official record
Monitor this carrier after your review
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