TRISTAN JOHN ZEHR
USDOT 3958038 • DBA: ROCK OF AGES • 11685 HIGHWAY C, CUBA, MO, 65453-6161
ACTIVE
Authority:None on file
Insurance:None on file
BOC-3:Not on file
Safety Rating:Not rated
MCS-150:Never updated
OOS Orders:None
Overview
Company profile from FMCSA Census File
USDOT
3,958,038
Status
ACTIVE
Operation
Intrastate (Non-Hazmat)
State
Phone
5732412255
Email
Power Units (MCS-150)
2
Drivers (MCS-150)
1
MCS-150 Mileage
13,000
Physical Address
11685 HIGHWAY C, CUBA, MO, 65453-6161
Contact
Phone: 5732412255
Email: [email protected]
Risk Signals1 flagged
MEDIUM
Elevated vehicle OOS rate: 100.0%
National average is 23.4%. This carrier's vehicle OOS rate is 76.6 percentage points above average.
Signals are auto-detected from FMCSA public records. This is not a regulatory determination.
Authority & Insurance
Operating authority, insurance filings, and BOC-3 status
Active Authority
0
Revoked / Inactive
0
Authority Types
0
Insurance Policies
None on file
BOC-3 Filing
Not on file
Operating Authority
fmcsa-authhistApr 5, 2026
No records found
No insurance filings found for this carrier in FMCSA records.
Safety & Inspections
SMS BASIC scores, inspection history, and out-of-service rates
SMS BASIC Scores
Driver Fitness
0%
Drugs / Alcohol
0%
Hours of Service
0%
Vehicle Maintenance
17%
Higher percentile = worse safety performance relative to peers. Scores at or above 75% trigger FMCSA alerts.
Inspections
2
Violations
9
2 OOS
Vehicle OOS %
100.0%
Above nat'l avg (23.4%)
Driver OOS %
0.0%
Power Units (MCS-150)
2
Drivers (MCS-150)
1
Crash Records
1
Inspection Activity (24 months)
Monthly inspection counts with OOS months highlighted. Hover bars for details.
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
1
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Clean monthMonth with OOSBased on latest 2 of 2 inspection records
Inspection Activity Map
1 state • 2 inspections
None Low Medium High🚛 Home base
Violation Summary (9 violations from 2 inspections)
fmcsa-inspection-file
| Code | Description | # Violations | # OOS | Severity Wt | BASIC |
|---|---|---|---|---|---|
| FMCSR:390.21TB2-DOT | 390.21TB2-DOT | 1 | 0 | — | General/Admin |
| FMCSR:390.21TB3-OPERBY | 390.21TB3-OPERBY | 1 | 0 | — | General/Admin |
| FMCSR:393.45B2-B-AIR | Brake tubing/hoses inadequate | 1 | 0 | 7 | Vehicle Maintenance |
| FMCSR:393.11A1-LRR | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.11A1-LIL | Lighting devices/reflectors | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:393.209D-STPAL | Wheel fasteners loose/missing | 1 | 1 | 8 | Vehicle Maintenance |
| FMCSR:393.95(f) | Emergency Equipment - Stopped vehicle warning devices missing or improper | 1 | 0 | — | Vehicle Maintenance |
| FMCSR:396.17(c) | No proof of periodic inspection | 1 | 0 | 3 | Vehicle Maintenance |
| FMCSR:396.3(a)(1) | Inspection/repair/maintenance - general | 1 | 1 | 5 | Vehicle Maintenance |
Inspection History (2 inspections)
fmcsa-inspectionsApr 5, 2026
| Date | Report # | Station | State | Level | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| Aug 8, 2025 | 85451424 | CUBA MO | MO | Level 1 | UTILITY SEMI-TRAILER | 6 | 390.21TB2-DOT, 390.21TB3-OPERBY, 393.45B2-B-AIR | Yes |
| Sep 13, 2023 | 79664539 | ROLLA | MO | Level 2 | PTRB TRUCK TRACTOR | 3 | 393.95(f), 396.17(c), 396.3(a)(1) | Yes |
Inspection analytics
Monthly cadence, frequent stations, and violation mix
Inspections per month (24 mo)
1 total · 100.0% OOS
2025-082025-08
InspectionsOOS
Violations by BASIC category
Vehicle Maintenance7 · 2 OOS
Recent Crashes
1 crash record from FMCSA Crash File
Total Crashes
1
Fatalities
0
Injuries
0
Tow-Aways
1
Crash History (1 records)
fmcsa-crash-fileApr 5, 2026
| Date | State | Severity | Fatalities | Injuries | City | Location | VIN | Carrier Name at Crash |
|---|---|---|---|---|---|---|---|---|
| Apr 7, 2025 | MO | TOW | 0 | 0 | NON-CITY OR UNINCORPORATE | CRD CALVEY CREEK RD | ...289043 | TRISTAN JOHN ZEHR |
Compliance Timeline
1 event merged from authority, insurance, enforcement, OOS, crash, MCS-150, and safety rating records
Related Records
Related records
StateAll entities in Missouri
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CityEntities in CUBA, MO
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Crashes1 crash records
FMCSA Crash File
Inspections2 inspection records
Full inspection history
StationCUBA MO
1 inspection at this station
StationROLLA
1 inspection at this station
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Data sources & freshness
FMCSA Company Census File
Generated from 24-hour old database. Contact info and fleet counts may lag.
Updated 1 weeks ago
FMCSA Authority History
Updated 1 weeks ago
FMCSA Insurance Filings
Updated 1 weeks ago
FMCSA Vehicle Inspection File
Updated 1 weeks ago
Refresh dataLast updated: Apr 5, 2026