Carrierintel
TS

TRI STATE STONE AND BUILDING SUPPLY INC

Carrierintel Safety Score: 63/100. 2 inspection violations in 12 months. Last inspected Sep 2026.

DOT 130616ActiveIntrastate Non-HazmatBETHESDA, MD

COMPANY

Authority since
—
MCS-150
2026-10-29 · 148,562 mi (2025)
Fleet
20 units · 2 trailers · 3 drivers

ADDRESS

Physical
8200 SEVEN LOCKS RD
BETHESDA, MD 20817-2074
Mailing
P O BOX 34300
BETHESDA, MD 20827-0300

CONTACT

Phone
3013652100
Email
joeporto@carderock.com

OFFICERS

Primary Officer
JOSEPH B PORTO
Title
VICE PRESIDENT

OPERATION & CARGO

Operation classification
Private Property
Specialty
Construction & Building Materials
Cargo types
2
Building MaterialsConstruction
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
629 mo
Since USDOT registration
INSURANCE
Insurance not verified
Federal insurance records may not cover this carrier's operation type. Verify coverage through state records or the insurer.
RISK GRADE
Minimal Risk
0 risk factors · 1 strengths
OOS RATE
38.5%
10 / 26 inspections

Carrierintel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

63
out of 100
Fair
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Declared (MCS-150)
20 power units
Unique power units seen
3
Inspections
3
Discrepancy
0.1x

Minimal Risk

0 risk factors · 1 strengths · 2 data points

SAFETY PERFORMANCE

Crash Record
5 crashes · 0 fatal · 2 with injuries · 5 tow-away
Clean Inspection Rate
62% — 16 clean of 26 inspections
Out-of-Service Rate
38.5% — driver OOS 0 insp., vehicle OOS 10 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
No operating authority on file
Out-of-service orders
None on record
Authority Events
No authority history events
MCS-150 Filing
Last filed 2026-10-29

INSURANCE

Active Coverage
Insurance not verified — Federal insurance records may not cover this carrier's operation type. Verify coverage through state records or the insurer.

SUMMARY

No crashes in the last 24 months

INDUSTRY REPORTS

  • ELD Tampering — Carriers cited for ELD tampering under 49 CFR § 395.8(e), by carrier and state.
  • Top Violations — The ten most-cited FMCSA violation codes of the last 30 days.
  • Phantom Fleets — Declared power units against the vehicles seen at roadside inspections.
  • English Proficiency — Carriers whose drivers were cited under 49 CFR § 391.11(b)(2), by carrier and state.
  • Methodology — Where the data comes from and how the Safety Score and Risk Grade are built.

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