STONYBROOK CONSTRUCTION LLC
No authority breakdown on file.
No active policies on file.
No BOC-3 filing on file.
Carrier analysis & narrative context SEO summary, status notes, AI overview, and safety profiles
STONYBROOK CONSTRUCTION LLC is a individual based in WATERTOWN, CT, registered with the FMCSA under USDOT 732719. The carrier is currently active in FMCSA's records, and has not yet received a formal FMCSA safety rating. MCS-150 self-reporting puts the fleet at 12 power units and 23 drivers, with 8 roadside inspections on file. Use this page to verify the carrier's authority and insurance, review its inspection and crash history, and cross-reference live data on FMCSA SAFER before booking a load or onboarding a partner.
Carrier is unrated
FMCSA has not assigned this carrier a formal safety rating. Use the inspection history and BASIC scores below to assess on-road performance.
STONYBROOK CONSTRUCTION LLC is a mid-sized fleet, operating 12 power units and 23 drivers, organized as an individual, based in Watertown, CT. Across 5 roadside inspections in the last 24 months, the fleet recorded a 40.0% out-of-service rate, with 2 reportable crashes. no operating authority record was located.
5 roadside inspections over the last 24 months, up 67% versus the prior 24 months, most heavily in CT (5 stops), with Level 3 inspections the most common.
40.0% out-of-service rate; led by Vehicle Maintenance (64.3% of violations); top code 393.47(e) (Slack adjuster defective) cited 3 times.
The fleet comprises 12 power units (mid-sized fleet) and 23 drivers; International and Mack are the most-inspected makes.
Compliance & contact
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 73,938 ACTIVE carriers operating 6–18 power units (±50% of this carrier's 12 unit fleet).
Inspection Analytics Monthly activity · BASIC mix · state map
Monthly Inspection Activity (24 months)
Violations by BASIC Category
Activity by State
| State | Inspections | OOS | OOS % | Last Inspection |
|---|---|---|---|---|
| Connecticut (CT) | 4 | 2 | 50.0% | Sep 4, 2025 |
Vehicle Fleet Top makes and models observed in roadside inspections
| Make | Model | Inspections |
|---|---|---|
| International | 6 | |
| Mack | 2 |
Recent Inspections (8 rows) View all 8 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 85687515 | Sep 4, 2025 | CT | 3 | WATERTOWN |
INTL STRAIGHT TRUCK
|
1 | 392.2-SLLS2 | No |
| 83541794 | Jan 7, 2025 | CT | 2 | I-91 NEW HAVEN |
MACK STRAIGHT TRUCK
|
2 | 393.100B-C, 393.60C | Yes |
| 82675766 | Sep 17, 2024 | CT | 3 | WATERBURY |
INTL STRAIGHT TRUCK
|
2 | 392.16(a), 392.2 | No |
| 82272351 | Jul 31, 2024 | CT | 1 | ct-east-litchfield-rd/fire-dpt |
INTL STRAIGHT TRUCK
|
8 | 396.3(a)(1), 393.47(e), 393.78 | Yes |
| 81700652 | May 24, 2024 | CT | 3 | WATERBURY |
INTL STRAIGHT TRUCK
|
1 | 392.2 | No |
| 81243464 | Apr 2, 2024 | CT | 3 | SOUTHINGTON |
MACK STRAIGHT TRUCK
|
1 | 392.2 | No |
| 79778379 | Sep 27, 2023 | CT | 3 | WATERBURY |
INTL STRAIGHT TRUCK
|
1 | 392.16(a) | No |
| 78928587 | Jun 20, 2023 | CT | 1 | FARMINGTON |
INTL STRAIGHT TRUCK
|
8 | 393.45(d), 393.75(a)(3), 393.11 | Yes |
Recent Crashes (9 rows)
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| CT2500259407 | Jul 17, 2025 | CT | 0 | 0 | Yes | Yes | Tow |
| CT2400328142 | Aug 29, 2024 | CT | 0 | 1 | Yes | Yes | Injury |
| CT2300298558 | Jul 23, 2023 | CT | 0 | 0 | Yes | Yes | Tow |
| CT2200189473 | May 3, 2022 | CT | 0 | 0 | Yes | Yes | Tow |
| CT2100375155 | Sep 11, 2021 | CT | 0 | 1 | Yes | Yes | Injury |
| CT2000040172 | Aug 20, 2020 | CT | 0 | 0 | Yes | Yes | Tow |
| CT1800457555 | Sep 21, 2018 | CT | 0 | 0 | Yes | Yes | Tow |
| CT1700421537 | Aug 10, 2017 | CT | 0 | 1 | Yes | Yes | Injury |
| CT0001626713 | Oct 10, 2016 | CT | 0 | 0 | Yes | Yes | Tow |
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| WATERBURY | CT | 3 | 0 |
| FARMINGTON | CT | 1 | 1 |
| I-91 NEW HAVEN | CT | 1 | 1 |
| SOUTHINGTON | CT | 1 | 0 |
| WATERTOWN | CT | 1 | 0 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 393.47(e) | Slack adjuster defective | Vehicle Maintenance | 4 | 0 |
| 392.2 | Operating a CMV while ill or fatigued | Unsafe Driving | 3 | 0 |
| 392.16(a) | Failing to use seat belt (49 CFR) | Unsafe Driving | 2 | 0 |
| 393.53(b) | Steering system components worn | Vehicle Maintenance | 2 | 0 |
| 392.9(a)(1) | Failing to secure cargo as specified in 49 CFR 393.100 through 393.142 | Unsafe Driving | 1 | 0 |
| 393.11 | Lighting devices/reflectors | Vehicle Maintenance | 1 | 0 |
| 393.45(b)(2) | Brake tubing/hoses inadequate | Vehicle Maintenance | 1 | 0 |
| 393.45(d) | Brake tubing/hoses inadequate | Vehicle Maintenance | 1 | 1 |
| 393.55(d)(2) | Coupling device/towing methods defective | Vehicle Maintenance | 1 | 0 |
| 393.75(a)(2) | Tire-tread and/or sidewall separation | Vehicle Maintenance | 1 | 0 |
Related Records Cross-references to every adjacent page
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Where this carrier might be inspected
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8 inspections
Full roadside inspection history
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9 reportable crashes
FMCSA MCMIS crash log
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Fleet recall search
NHTSA recalls covering this fleet's vehicle years/makes
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MCS-150, insurance, and authority filing requirements
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How to verify STONYBROOK CONSTRUCTION LLC
- Verify USDOT and MC numbers match the carrier's documents. Compare the USDOT number and MC docket on this page to the numbers on the carrier's invoice, rate confirmation, or load-board listing. A mismatch between the carrier's claimed numbers and the registered legal name is the single most common red flag.
- Check active operating authority and insurance status. Confirm the Authority Records show at least one ACTIVE docket for the type of operation you're booking, and that the Active Insurance card lists a current BIPD/Primary policy. A revoked authority or uninsured carrier cannot legally operate.
- Review safety rating and SMS BASIC scores. Check the carrier's FMCSA safety rating (if any) and the SMS BASIC table. A high percentile in any BASIC category — especially Unsafe Driving, HOS, or Vehicle Maintenance — is worth investigating before tendering a load.
- Examine inspection and crash history. Open the Inspection History and Crash History subpages for the full record. Look for patterns: repeat OOS findings on the same unit, multiple crashes in a short window, or violations clustered in one BASIC category.
- Cross-reference real-time data with FMCSA SAFER. For the most current snapshot — within 24 hours of any insurer filing or authority change — click through to the FMCSA SAFER lookup. TruckCodex mirrors SAFER and L&I daily; SAFER itself reflects filings within 24 hours.
Frequently asked questions about STONYBROOK CONSTRUCTION LLC
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About FMCSA carrier records
Every commercial motor carrier operating in the United States is required to register with the Federal Motor Carrier Safety Administration (FMCSA) and obtain a USDOT number. The USDOT number is a permanent, unique identifier — once assigned, it stays with the carrier for life and is never reissued to another company. Carriers must update their registration every two years on Form MCS-150 to keep their address, fleet size, and operating data current.
Carrier safety data lives in FMCSA's Motor Carrier Management Information System (MCMIS): roadside inspections, crashes, out-of-service findings, and the seven Behavior Analysis and Safety Improvement Categories (BASICs) that make up the SMS scoring methodology. For-hire carriers must also hold operating authority — an MC, FF, or MX docket number — which is separate from the USDOT number and requires continuous insurance and BOC-3 process-agent filings to remain active.
TruckCodex mirrors FMCSA's public SAFER and L&I systems on a daily refresh cycle. Every record on this page reflects what FMCSA has on file. We do not edit or modify carrier data — for real-time confirmation immediately before a transaction, click through to the FMCSA SAFER lookup linked in the related records section above. Safety ratings, when present, come from formal compliance reviews; most active carriers have not been reviewed and are correctly listed as unrated.
Data sources & freshness
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
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