MAY CONSTRUCTION INC
AUTHORIZEDUSDOT
1256411
MC Number
N/A
Fleet Size
21
Total Drivers
20
Last updated: March 13, 2026
Safety overview
MAY CONSTRUCTION INC is a mid-size interstate motor carrier based in MADISON, South Dakota, operating 21 power units with 20 drivers. Their safety profile raises flags: 3 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. Their driver out-of-service rate of 100.0% runs above the national average of 5.51%. No crashes on file. FMCSA records show 1 inspection for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in South Dakota is 7.4% and the average vehicle OOS rate is 30.0% across 6,042 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
What are BASIC scores?
FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.
A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.
- Unsafe driving
- Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
- HOS / Fatigue
- Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
- Driver fitness
- Licensing problems, expired medical certificates, and other driver qualification issues.
- Controlled substances
- Drug and alcohol testing violations, possession, or impairment.
- Vehicle maintenance
- Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
- Crash indicator
- Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.
Inspections
1
Total
50%
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is MAY CONSTRUCTION INC authorized to operate?
Yes. MAY CONSTRUCTION INC (USDOT #1256411) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is MAY CONSTRUCTION INC's safety record?
MAY CONSTRUCTION INC has 3 BASIC scores above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.
How many trucks does MAY CONSTRUCTION INC operate?
MAY CONSTRUCTION INC operates 21 power units with 20 drivers on file. That puts them in the mid-size range.
Does MAY CONSTRUCTION INC transport hazardous materials?
No. MAY CONSTRUCTION INC does not have a hazardous materials flag in the FMCSA database.
Where is MAY CONSTRUCTION INC located?
MAY CONSTRUCTION INC is based in MADISON, South Dakota at 23484 455TH AVE, 57042. Phone: (605) 530-1002.
What are MAY CONSTRUCTION INC's out-of-service rates?
MAY CONSTRUCTION INC's driver out-of-service rate is 100.0%, compared to the national average of 5.51%. Higher than average, which could point to driver compliance issues. Their vehicle out-of-service rate is 100.0% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.