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Carrier profile · USDOT 3973208 · Data as of Oct 7, 2026

3 Sisters Underground

DBA Brothers Underground · Otsego, MN · Intrastate (Non-Hazmat) carrier · Since 2022
No MC authorityNot rated by FMCSANo hazmat
Cargo carriedBuilding MaterialsMachinery, Large ObjectsConstruction
View on FMCSA SAFERCall (763) 516-5564
7
Power units
7
Drivers
1
Inspections · 24 mo
1
Crashes · 24 mo
30K
Annual miles
4 yr
Registered
95
/ 100
Clear to load

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MCS-150 not updated in over 2 years: FMCSA requires a biennial update.

How we scored it · 5 factors
Operating authority20/20
Insurance20/20
Out-of-service rates20/20
Crashes & rating20/20
Continuity & identity15/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026
Vehicle out-of-service
—
National 22.26% · 0 of 0 inspections · needs 3+
Driver out-of-service
—
National 6.67% · 0 of 1 inspections · needs 3+
Crashes
1
0 fatal1 injury1 tow-away
Crash rate 16.67 per 1M mi
Total inspections
1
Driver inspections
1
Vehicle inspections
0
People injured
1
Fatalities
0
FMCSA rating
Not rated

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

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Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026

No operating authority (MC/FF docket) on file. Private and intrastate carriers don't need one; interstate for-hire carriers and brokers do.

Equipment

SELF-REPORTED ON MCS-150
7
Power units
7
Trucks
—
Tractors owned
6
Trailers owned
7
Drivers
2
CDL drivers
Not registered for hazardous materials.

Operations & cargo

FMCSA CENSUS
Intrastate (Non-Hazmat)
Cargo carried
Building MaterialsMachinery, Large ObjectsConstruction
Annual mileage
30,000 mi (2023)

Identity & federal record

FMCSA census · MCS-150
USDOT
3973208
MC / docket
None
Legal name
3 Sisters Underground
DBA
Brothers Underground
Entity type
Carrier
Operation
Intrastate (Non-Hazmat)
First registered
Oct 20, 2022
Last MCS-150
Aug 7, 2024
Safety rating
Not rated
Drivers (CDL)
7 (2)
Hazmat
No
Business type
—

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Unique phone number
Not shared with any other active USDOT.
Unique email address
Not shared with any other active USDOT.
Unique street address
Not shared with any other active USDOT.

Frequently asked

What is 3 Sisters Underground's USDOT number?

3 Sisters Underground's USDOT number is 3973208.

Is 3 Sisters Underground authorized to operate?

It does not hold MC operating authority, which private and intrastate carriers do not need.

What is 3 Sisters Underground's safety record?

Over the last 24 months: 1 roadside inspections, and 1 reportable crash (0 fatal). Not rated by FMCSA.

How big is 3 Sisters Underground's fleet?

7 power units and 7 drivers per its MCS-150 filed Aug 7, 2024.

Where is 3 Sisters Underground located?

3 Sisters Underground is located at 16935 58TH St, Otsego, MN, 55330-6434. Phone: (763) 516-5564.

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Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.