Carrier profile · USDOT 390896 · Updated Jun 13, 2026

Hollerbach Equipment Co Inc

DBA ANDREWS CONCRETE PUMPING

18 power unitsavg 8.2 yrRegional · 3 statesJESSUP, MD75/100

AUTHORITY STATUS UNKNOWNRATED SATISFACTORY

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 23.1%24-mo cumulative

050%nat'l 22.26%

Driver OOS 7.1%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 13 vehicle and 14 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

25.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 28.0 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

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

14 inspections in the charted months · busiest month Nov '24 · 2

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

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.

Expected band

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.4 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 18-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 18
Inspections · 24 mo: 14
Annualized: ≈7 / yr
Coverage: ≈0.4 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving

Vektor peer est.

Hours-of-Service

0violations

clean · per-BASIC

47%

Driver Fitness

Vektor peer est.

Controlled Substances

0violations

clean · per-BASIC

45%

Vehicle Maintenance

Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving7 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance6 · 1 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
393.43 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance1 · 0 OOS
393.78 Windshield wipersVehicle Maintenance1 · 0 OOS
393.81 HornVehicle Maintenance1 · 0 OOS
391.11 Driver not qualifiedDriver Fitness1 · 1 OOS
396.17 Periodic (annual) inspectionVehicle Maintenance1 · 0 OOS
392.16 Failure to use seat beltUnsafe Driving1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 20 inspections — a clean logging history.

Crash history· 11 total · 2 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Fatal	Injury	Tow
2026	1	0	1	1
2025	1	0	0	1
2022	1	0	1	1
2021	1	0	0	1
2015	2	0	1	1
2012	1	1	1	1
2007	1	0	1	1
2006	1	0	1	1
2000	1	0	1	1
1998	1	0	0	1

Date	State	Fatalities	Injuries	Tow-away
Apr 1, 2026	MD	0	1	Yes
Sep 3, 2025	MD	0	0	Yes
Dec 2, 2022	MD	0	2	Yes
Sep 27, 2021	MD	0	0	Yes
Oct 29, 2015	MD	0	0	Yes
Sep 30, 2015	MD	0	1	No
Nov 5, 2012	MD	2	3	Yes
Aug 13, 2007	MD	0	1	Yes
May 5, 2006	MD	0	1	Yes
Apr 7, 2000	VA	0	1	Yes
Feb 11, 1998	MD	0	0	Yes