Carrier profile · USDOT 371841 · Updated Jun 13, 2026

INTERSTATE ROOFING & WATERPROOFING INC

DBA INTERSTATE ROOFING & WTP INC

40 power unitsavg 8 yrRegional · 5 statesONALASKA, WI87/100

AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT

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 33.3%24-mo cumulative

050%nat'l 22.26%

Driver OOS 8.3%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 15 vehicle and 12 driver inspections over 24 months.

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

18.2% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 20.5 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 Oct '25 · 4

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.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.2 / unit·yr

thin signalabundant signal

Few roadside inspections for a 40-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 40
Inspections · 24 mo: 17
Annualized: ≈9 / yr
Coverage: ≈0.2 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

24%

Unsafe Driving

Vektor peer est.

51%

Hours-of-Service

Vektor peer est.

41%

Driver Fitness

Vektor peer est.

Controlled Substances

Vektor peer est.

43%

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.

393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance8 · 0 OOS
395.8 Record of duty status (log / ELD) not current or missingHOS Compliance6 · 1 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving6 · 0 OOS
396.17 Periodic (annual) inspectionVehicle Maintenance5 · 0 OOS
392.16 Failure to use seat beltUnsafe Driving3 · 0 OOS
393.41 Parts & accessories (vehicle condition)Vehicle Maintenance3 · 3 OOS
391.41 No / expired medical certificateDriver Fitness3 · 0 OOS
396.3 Inspection / repair / maintenance not performedVehicle Maintenance3 · 3 OOS
393.9 Inoperative required lampsVehicle Maintenance3 · 0 OOS
177.834 Other violationOther2 · 2 OOS

ELD & hours-of-service

6 hours-of-service / ELD violations on record · most recent Jul 24, 2025. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

0ELD device issues

4No log / no ELD

0False logs

0Drove over hours

Crash history· 5 total · 0 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Tow
2004	1	1
2002	1	1
1997	2	2
1995	1	1

Date	State	Tow-away
Aug 16, 2004	WI	Yes
Oct 30, 2002	WI	Yes
Nov 26, 1997	WI	Yes
Jan 24, 1997	MN	Yes
Aug 30, 1995	MN	Yes