GRANITE STATE GAS TRANSMISSION INC
DBA: UNITIL
ActiveNot RatedINTERSTATE
Based in PORTSMOUTH, New Hampshire, GRANITE STATE GAS TRANSMISSION INC is a motor carrier registered under USDOT 3615183. With 6 power units and 5 drivers, the company operates as a smaller fleet carrier. The carrier has only 0% of required liability insurance on file — a coverage gap of $750K. Our composite safety score rates this carrier at 45/100, indicating a mixed safety profile that warrants closer review.
6
Power Units
5
Drivers
3615183
USDOT #
45/100
Safety Score
⚠️
Insurance Coverage Gap
This carrier has $0 in liability insurance on file but $750K is required — a shortfall of $750K (0% of required coverage).
Company Details
- Legal Name
- GRANITE STATE GAS TRANSMISSION INC
- USDOT Number
- 3615183
- Entity Type
- CARRIER
- Address
- 325 WEST RD
PORTSMOUTH, NH 03801-5638 - Phone
- (603) 294-5153
- Carrier Operation
- Interstate
- Last MCS-150 Update
- February 27, 2026
BASICs Safety Scores
Unsafe Driving0%
Crash IndicatorN/A
HOS Compliance0%
Vehicle Maintenance0%
Controlled Substances0%
Hazmat ComplianceN/A
Driver Fitness0%
Higher percentile = worse safety performance. Scores above 75% may trigger FMCSA intervention.
Location
325 WEST RD, PORTSMOUTH, NH 03801-5638
Frequently Asked Questions
What is GRANITE STATE GAS TRANSMISSION INC's USDOT number?
GRANITE STATE GAS TRANSMISSION INC's USDOT number is 3615183. The company is based in PORTSMOUTH, New Hampshire.
Is GRANITE STATE GAS TRANSMISSION INC a safe trucking company?
GRANITE STATE GAS TRANSMISSION INC has not received a formal safety rating from FMCSA.
How many trucks does GRANITE STATE GAS TRANSMISSION INC have?
GRANITE STATE GAS TRANSMISSION INC operates 6 power units (trucks/commercial vehicles) and employs 5 drivers, according to their latest FMCSA filing.
Source: FMCSA Safety and Fitness Electronic Records (SAFER) System