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BLOCK SAND CO INC
Mcloud, OK
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating and crash records checked
FMCSA status: Active registration · no operating authority · DOT 734705
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
9.1% OOS · 21 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- No active insurance filing found on record
- Vehicle out-of-service rate 33.3% — above the 20.7% national average
- 21 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
734705
Safety Rating
Not Rated
Operation Classification
Authorized for hire
MCS-150 Filed
April 27, 2023
FMCSA Registration
March 12, 1998
Annual Mileage
120,000 mi (2019)
Contact Information
Address
329044 E 1070 Rd, Mcloud, OK 74851
Phone
Email
Owner / Officer
Daniel Block
Officer 2
Frances H Block
Cargo Types
Building MaterialsConstruction Materials
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
21
Driver Inspections
18
Vehicle Inspections
4
Out-of-Service Violations
2
Violations by Category
Vehicle Maintenance6
Unsafe Driving5
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate0.0% · national avg 5.5%
✓ Below national average
Vehicle OOS Rate33.3% · national avg 20.7%
⚠ Above national average (12.6pp higher)
9.1% of 11 inspections in the last 24 months put a driver or vehicle out of service —
23rd percentile among carriers with 10–24 inspections (lower is better).
CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Inspection Trend by Year
2026
2025
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
2 of 3 inspections
Unsafe Driving
3 of 12 inspections
Hours of Service
0 of 12 inspections
Driver Fitness
0 of 12 inspections
Controlled Substances
0 of 12 inspections
Crash History (1)
Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
1
Crashes
0
Fatalities
0
Injuries
1
Tow-aways
| Date | State | Fatal | Injured | Tow | Conditions |
|---|---|---|---|---|---|
| June 13, 2025 | OK | — | — | Yes | No Adverse Conditions · Daylight · Dry |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
OK15
Fleet & Equipment (14)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~8
of 22 reported to FMCSA
Trailers
~6
seen at inspection
Equipment types observed
Tractor
6
Dump
4
Not Applicable
1
Semi-trailer
1
Truck
1
Utility Trailer
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| Ptrb | Tractor | 1NPXGGGG10D241296 | 3 | — |
| Ptrb | Tractor | 1NPXGGGG70D267806 | 3 | — |
| 2020 Construction Trailer Specialists | Dump · 40 ft | 5TU114025LS000202 | 3 | — |
| 2014 Manac Trailers Usa Manac | Dump · 40 ft | 5MC424015E3144130 | 2 | — |
| 2013 Manac Trailers Usa Manac | Dump · 40 ft | 5MC424019D3135946 | 2 | — |
| 2020 Construction Trailer Specialists | Dump · 40 ft | 5TU114027LS000203 | 2 | — |
| Kw | Tractor | OK0427556864 | 2 | — |
| 2018 Peterbilt 567 | Tractor · Class 8 | 1XPCD49X6JD476352 | 1 | — |
| 2006 Peterbilt 335 | Not Applicable · Class 8 | 2NPLLZ9X66M660847 | 1 | 1 |
| 2026 International HX520 | Tractor · Class 8 | 3HSPAAPR3TN315433 | 1 | — |
Show all 14 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2015 Terex Advance Mixer | Truck · Class 8 | 5DG8AU6T8F0013286 | 1 | — |
| 2019 Western Star 4900 | Tractor · Class 8 | 5KJJAEDR9KPKV6643 | 1 | — |
| Mntr | Semi-trailer | 5MC42401533144130 | 1 | — |
| 2025 Htc Group Limited | Utility Trailer · 14 ft | 7UY02142XS0600389 | 1 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (21)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| September 15, 2026 | C200001077 | OK, OK | III | — | — | ADA AGGREGATES | Truck Tractor Semi-trailer |
INTERNATIONAL CONSTRUCTION TRAILER SPECIALISTS |
3HSPAAPR3TN315433 5TU114027LS000203 |
OK 735816 OK AU4699 |
| August 26, 2026 | H513154670 | OK, OK | III | — | — | MC | Straight Truck |
PETERBILT |
2NPLLZ9X66M660847 |
OK V51248 |
| August 25, 2026 | C200001026 | OK, OK | I | 3 | 2 | MC | Straight Truck |
PETERBILT |
2NPLLZ9X66M660847 |
OK V51248 |
| 393.45D-BAAL | OOSAir Brake - Audible air leak at other than a proper connection | Brakes All Others | ||||||||
| 396.3A1-BALR | OOSAir Brake - Fails air loss rate test | Brakes All Others | ||||||||
| 393.45D-B | Air Brake - Audible air leak at a proper connection | Brakes All Others | ||||||||
| April 30, 2026 | C200000851 | OK, OK | II | — | — | MC | Truck Tractor Semi-trailer |
PTRB CONSTRUCTION TRAILER SPECIALISTS |
1NPXGGGG70D267806 5TU114025LS000202 |
OK 735821 OK AU4698 |
| January 13, 2026 | V900173096 | INTERSTATE 35 NB, OK | III | 1 | — | MARTIN MARIETTA | Truck Tractor Semi-trailer |
PTRB MANAC TRAILERS USA |
1NPXGGGG10D241296 5MC424015E3144130 |
OK 730682 OK 2102JA |
| 392.16AD | Driver - Failed to use seat belt while operating a CMV. | Seat Belt | ||||||||
| December 11, 2025 | H600154426 | US-62 / KICKAPOO TURNPIKE, OK | III | 3 | — | M/C | Straight Truck |
TEREX ADVANCE MIXER |
5DG8AU6T8F0013286 |
OK V51326 |
| 392.2-SLLDL | State/Local Laws - Misc. driver's license violation | |||||||||
| 392.2-SLLEQP | State/Local Laws - Violation of state and local law - Equipment violation. | |||||||||
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| September 12, 2025 | H600154213 | US-177 / KICKAPOO SPUR, OK | II | 5 | — | M/C | Truck Tractor Semi-trailer |
PTRB CONSTRUCTION TRAILER SPECIALISTS |
1NPXGGGG70D267806 5TU114025LS000202 |
OK 719372 OK AU4698 |
| 393.95A4-EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Emergency Equipment | ||||||||
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| 390.21TC-MC | Required CMV marking(s) not legible from 50 feet while stationary due to improper size/location/color | |||||||||
| 393.209E-SPSLA | Steering - Power steering leaking anywhere. | Steering Mechanism | ||||||||
| 392.2-SLLEQP | State/Local Laws - Violation of state and local law - Equipment violation. | |||||||||
| August 27, 2025 | N600001069 | STATE HIGHWAY 1 ADA, OK | III | 1 | — | MC | Truck Tractor Semi-trailer |
INTERNATIONAL CONSTRUCTION TRAILER SPECIALISTS |
3HSPAAPR3TN315433 5TU114027LS000203 |
OK 735816 OK AU4699 |
| 392.2-SLLS1 | State/Local Laws - Speeding 1-5 miles per hour over the speed limit | |||||||||
| June 26, 2025 | Z600211672 | I-35 N/B AND MM112, OK | III | — | — | MC | Truck Tractor Semi-trailer |
WESTERN STAR HTC GROUP LIMITED |
5KJJAEDR9KPKV6643 7UY02142XS0600389 |
OK 733150 OK DQ6854 |
| April 29, 2025 | Z600211554 | I-35 N/B AND MM111, OK | III | — | — | MC | Truck Tractor Semi-trailer |
PTRB MANAC TRAILERS USA |
1NPXGGGG10D241296 5MC424015E3144130 |
OK 730682 OK 2102JA |
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| MARTIN MARIETTA | 4 | January 13, 2026 |
| ADA AGGREGATES | 1 | September 15, 2026 |
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: September 27, 2026.
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