Carrier profile · USDOT 315652 · Updated Jun 13, 2026
Superior Steel Inc
34 power unitsavg 7.6 yrRegional · 5 statesKNOXVILLE, TN80/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 5277 N NATIONAL DR, KNOXVILLE, TN, 37914
- Operation
- Interstate· Hazmat
Contact
- Phone
- (865) 522-0253
- Cell
- (865) 740-9990
- Fax
- (865) 522-0582
- nmunday@superstl.com
- Web domain
- superstl.com
Registration
- Officers
- Natalie Grace Munday · Mark Munday
- USDOT / docket
- 315652
- First registered
- May 21, 1988
- Last MCS-150
- Apr 18, 2025 · 511,000 mi (2024)
- FMCSA safety rating
- Satisfactory · Sep 21, 2009
- D-U-N-S
- 74894452
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
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.