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SOUTHERN WISCONSIN AGGREGATE CORPORATION

USDOT 1930579 · status active · 7 pass / 0 fail / 2 unknown

What this page is. A rendering of FMCSA public records on a stated date. Not a safety rating, credit score, or recommendation. Source: Company Census File (az4n-8mr2, updated 2026-10-21, sha256 73d4c5901abe8cdb…).

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Identity

Legal nameSOUTHERN WISCONSIN AGGREGATE CORPORATION
Company Census File
DBA—
Company Census File
MC number—
Company Census File
Registration statusA
Company Census File
Operation typeC
Company Census File
Registered since2009-08-26
Company Census File

Contact

Phone6087524322
Company Census File
Emailtlorenz@silhaexcavation.com
Company Census File
Officer 1DAN SILHA
Company Census File
Officer 2—
Company Census File

Address

Street348 N US HIGHWAY 14
Company Census File
CityJANESVILLE
Company Census File
StateWI
Company Census File
ZIP53546
Company Census File
CountryUS
Company Census File

Fleet (self-reported on MCS-150)

Truck units15
Company Census File
Power units15
Company Census File
Drivers17
Company Census File
CDL drivers17
Company Census File
Intrastate drivers17
Company Census File
Last MCS-150 filing2025-10-06
Company Census File

Related carriers

Share an officer and an address in the public record. This is shared contact information, not evidence of common ownership.

  1. FRANK SILHA & SONS INC
    both list officer DAN SILHA at 348 N US HWY 14, JANESVILLE WI

Safety history

Counts from FMCSA inspection and crash records, all history on file. Not a safety rating; FMCSA assigns ratings only after an on-site review.

Inspections3
driver 2 · vehicle 0
Out-of-service0 (0.0% of inspections)
driver 0 · vehicle 0
Violations3
Inspection span2024-08-06 – 2026-05-21
Crashes1
fatal 0 · injury 1 · tow-away 1
Crash span2022-07-12 – 2022-07-12

Rulebook v1 · JSON