Carrier profile · USDOT 3057283 · Updated Jun 13, 2026
South Capitol Bridgebuilders
5 power unitsWASHINGTON, DC50/100
AUTHORITY STATUS UNKNOWNHAZMAT
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
- 1220 12TH STREET SE SUITE 255, WASHINGTON, DC, 20003
- Mailing address
- 2711 E 112TH ST, CHICAGO, IL, 60617-6928
- Operation
- Interstate· Hazmat
Contact
- Phone
- (773) 356-7836
- Cell
- (773) 858-8382
- Fax
- (773) 978-1683
- Web domain
- walshgroup.com
Registration
- Officer
- Dawn Kozyra
- USDOT / docket
- 3057283
- First registered
- Oct 10, 2017
- Last MCS-150
- Dec 12, 2022 · 15,257 mi (2021)
- FMCSA safety rating
- Not rated
- Recordable crash rate
- 0.00
- D-U-N-S
- —
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.