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THREE PHASE LINE CONSTRUCTION INC

USDOT 635578 Active Interstate
Trust Score
74
out of 100
REVIEW
Needs manual review
FARMINGTON, NH · Last verified October 26, 2026 · FMCSA public records

Operations

Power units
504
Trucks + tractors
Drivers
236
0.47 per truck
Authority age
30 years
Since 1996
Safety rating
Unrated

What THREE PHASE LINE CONSTRUCTION INC’s FMCSA record shows

Each field from the public registration, and what it means when you’re vetting this carrier.

USDOT number 635578
The USDOT number is FMCSA's permanent ID for this company. It never changes, even when the business renames, moves, or changes owners, so it's the most reliable way to identify THREE PHASE LINE CONSTRUCTION INC.
MC number None on file
No MC number is on file. That's normal for private fleets hauling their own goods and for intrastate-only carriers, but a company with no MC number can't legally haul regulated interstate freight for hire.
Operating status Active
FMCSA lists this USDOT number as active. Active status alone doesn't confirm current insurance or operating authority; those are separate checks.
Operation type Interstate
Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
Fleet size 504 power units, 236 drivers
THREE PHASE LINE CONSTRUCTION INC self-reports 504 power units (trucks and tractors), which makes it a large fleet. Fleet counts come from the carrier's own MCS-150 filing and aren't independently audited.
Last MCS-150 update May 6, 2026
The MCS-150 is the registration form where carriers report their address, fleet size, and operations. THREE PHASE LINE CONSTRUCTION INC last filed it on May 6, 2026. That's within FMCSA's two-year update requirement, so the company details here are reasonably current.

Safety profile

FMCSA BASIC percentiles, inspection history, and out-of-service rates.

Full safety report

All 7 FMCSA BASIC percentiles, recent inspection records, vehicle & driver out-of-service rates — free with any account.

Crash history

State-reportable crashes, severity breakdown, and time-decayed analysis.

Crash history

Individual crash records with date, severity (fatal / injury / tow-away), and fleet-normalized rate.

Insurance & compliance

Active policy coverage, insurance carrier, effective dates, and historical gaps.

Insurance details

BI&PD coverage, cargo insurance, insurance carrier name, effective dates — a critical pre-booking check.

Authority & cross-reference

Authority revocation history and chameleon carrier detection across 4.4M records.

Authority & cross-reference

Every authority grant, revocation, and reinstatement — plus chameleon flags from address / officer / phone matches.

Change history

3 recorded changes to THREE PHASE LINE CONSTRUCTION INC’s FMCSA record. Derived from monthly FMCSA Census snapshots.

Jun 2025
Power units changed from 521 to 352
Jun 2025
Driver count changed from 286 to 205
Jun 2025
MCS-150 filing changed from Jun 11, 2024 to Mar 19, 2026

Frequently asked questions about THREE PHASE LINE CONSTRUCTION INC

Common questions about this carrier, answered from FMCSA public records.

Is THREE PHASE LINE CONSTRUCTION INC a legitimate motor carrier?

THREE PHASE LINE CONSTRUCTION INC is registered with FMCSA under USDOT number 635578. Operating authority status is currently Active. Carrier90's trust score of 74/100 yields a REVIEW verdict based on safety, insurance, authority, and crash data.

What is THREE PHASE LINE CONSTRUCTION INC's safety score?

Carrier90 scores THREE PHASE LINE CONSTRUCTION INC at 74 out of 100 with a REVIEW verdict. The score combines FMCSA BASIC percentiles, crash history, insurance status, operating authority, and chameleon carrier detection signals.

Where is THREE PHASE LINE CONSTRUCTION INC based?

THREE PHASE LINE CONSTRUCTION INC lists its physical address in FARMINGTON, NH in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.

Is USDOT 635578 active?

USDOT 635578 (THREE PHASE LINE CONSTRUCTION INC) operating authority status is currently Active. Last verified by Carrier90 on October 26, 2026. Data is sourced from live FMCSA federal records.

How many trucks does THREE PHASE LINE CONSTRUCTION INC operate?

THREE PHASE LINE CONSTRUCTION INC reports 504 power units and employs 236 drivers to FMCSA. These figures come from the carrier's most recent MCS-150 filing.

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Related resources

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