Fleet typeIdentity
Asset-based
24 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 480592
SHANNAHAN ARTESIAN WELL CO INC
24 power unitsavg 8.3 yrLocal · 1 statesSAINT MICHAELS, MD
CARRIER ACTIVE
Observed fleet · trailing 24 mo daily
24Power units
4 observed · MCS-150
—Trailers seen
None observed · 24 mo
8.3Avg age (yr)
2008–2023 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
Clear to load
Active authority and a clean federal record. No blocking issues found.
Established 34 yearsVehicle out-of-service rate above average
Operating authority3434 yr active
since 1992Insurance (BIPD)Unknown
FMCSA L&IVehicle OOS · 24mo25.025.0 %
▲ 22.26% nat'lCrashes · fatal00
clean 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersTypical
8.3 yr
Model years 2008–2023 · peer benchmark computing.
Identity stabilityStable
34 yr unchanged
Same registration since 1992 — no chameleon / reincarnation signal.
AI readFull read
Is SHANNAHAN ARTESIAN WELL CO INC safe to work with?
Is SHANNAHAN ARTESIAN WELL CO INC safe to load? SHANNAHAN ARTESIAN WELL CO INC (USDOT 480592) is an active asset-based motor carrier based in SAINT MICHAELS, MD, operating 24 power units and 11 drivers. Operating authority has been active 34 years (past the 24-month broker-confidence threshold). Across 6 roadside inspections, its vehicle out-of-service rate is 25.0% (above the 22.26% national average), with 0 reportable crashes in the last 24 months. FMCSA has not assigned a safety rating. Vektor rates it clear to load (89/100). Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
SASHANNAHAN ARTESIAN WELL CO INC 89
01
Safety
6 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS 25.0% (24-mo)4 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS 0.0% (24-mo)4 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
OOS trajectory· trailing 6-mo vehicle-OOS rate vs national
16.7% now▲ Worsening
Inspection coverage· expected vs observed · the fraud signal
Inspection coverage
How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.1 / unit·yr
thin signalabundant signal
Few roadside inspections for a 24-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
- Registered power units
- 24
- Inspections · 24 mo
- 4
- Annualized
- ≈2 / yr
- Coverage
- ≈0.1 inspections / unit · yr
Violation themes· decoded · grouped by BASIC
What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.
- 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving2
- 390.19 Unified registration / MCS-150Unsafe Driving1
- 392.16 Failure to use seat beltUnsafe Driving1
- 393.41 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
- 393.9 Inoperative required lampsVehicle Maintenance1
- 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance1
02
Authority & insurance
Can they legally + adequately haul your load?
Insurance continuity· insurer · policy · lapses
No insurance filing history on record.
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 24
- Observed power (24 mo)
- 4
- Trailers (towed)
- 0
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2023
Newest model yr
2008
Oldest model yr
VINs decoded
04
Operations & lanes
Revealed by inspection density across 1 states · 24 mo
Operating footprint· revealed by roadside-inspection geography
Operating radiusLocal
revealedStates observed11
US statesInspections · 24 mo44
MD busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
SAINT MICHAELS, MD
Top corridor
MD
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
Shares a company officer with other carriers
michael hall — 59 carriers: USDOT 196759USDOT 745562USDOT 888507USDOT 897865USDOT 950607USDOT 965523USDOT 998864USDOT 1201867
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)2424
Observed (24 mo)44
Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- 25145 ST MICHAELS ROAD, SAINT MICHAELS, MD, 21663
- Mailing address
- PO BOX 730, SAINT MICHAELS, MD, 21663
- Operation
- Intrastate (Non-Hazmat)
Contact
- Phone
- (410) 745-5071
- Fax
- (410) 745-2264
- Web domain
- shannahanwell.com
Registration
- Officer
- Michael Hall
- USDOT / docket
- 480592
- First registered
- 04/21/1992
- Last MCS-150
- 10/01/2023 · 105,000 mi (2023)
- FMCSA safety rating
- Not rated
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
07
Federal activity
Daily-captured FMCSA licensing & insurance changes — monitored by Vektor
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.
08
Reviews
Verified broker, shipper & driver reviews — moderated
Performance ratings only — never the Vektor risk score
No verified reviews yet
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Leave a review09
Frequently asked
What is SHANNAHAN ARTESIAN WELL CO INC's USDOT number?
SHANNAHAN ARTESIAN WELL CO INC's USDOT number is 480592.
Is SHANNAHAN ARTESIAN WELL CO INC authorized to operate?
As of 2026-06-13, SHANNAHAN ARTESIAN WELL CO INC is active in the FMCSA register.
What is SHANNAHAN ARTESIAN WELL CO INC's safety record?
SHANNAHAN ARTESIAN WELL CO INC has a 25.0% vehicle out-of-service rate (national average 22.26%) across 6 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 89/100 (tier: clear).
How big is SHANNAHAN ARTESIAN WELL CO INC's fleet?
SHANNAHAN ARTESIAN WELL CO INC operates 24 power units and 11 drivers per its most recent MCS-150 filing.
Where is SHANNAHAN ARTESIAN WELL CO INC based?
SHANNAHAN ARTESIAN WELL CO INC is based in SAINT MICHAELS, MD, with roadside inspections recorded across 1 state.