HIGHWAY MAIL COMPANY
SatisfactoryDOT Number: 304808
Company Information
- Phone
- (515) 238-3341
- Address
- 18555 Y AVENUE, GRANGER, IA 50109-0577
- FleetPower units are the commercial motor vehicles (trucks, tractors, buses) registered to this carrier.
- 22 power units · 32 drivers
- Operation
- Interstate · MC-620731
Latest Roadside Inspections
Click any inspection to view violation details.
| Date | LevelLevel 1 is the most thorough inspection (full vehicle and driver review). Level 2 is a walk-around. Level 3 is driver-only. Level 5 is vehicle-only without driver present. | State | ViolationsThe total number of violations found during this roadside inspection, including both driver and vehicle issues. | StatusOut-of-Service (OOS) means the violation was serious enough that the vehicle or driver was ordered off the road until the issue is corrected. | Expand |
|---|---|---|---|---|---|
| 5/22/2026 | Level 3 | IA | 0 | Passed | |
| 4/13/2026 | Level 3 | MN | 1 | Passed | |
| 4/8/2026 | Level 2 | IN | 0 | Passed | |
| 3/10/2026 | Level 3 | IN | 3 | OOS Violation | |
| 2/9/2026 | Level 3 | IA | 3 | Passed | |
| 1/29/2026 | Level 2 | IL | 7 | Passed | |
| 1/27/2026 | Level 3 | SD | 0 | Passed | |
| 1/12/2026 | Level 3 | WI | 0 | Passed | |
| 11/26/2025 | Level 2 | KS | 1 | Passed | |
| 11/7/2025 | Level 3 | IN | 2 | Passed | |
| 10/27/2025 | Level 3 | MN | 6 | Passed | |
| 10/7/2025 | Level 3 | IA | 1 | Passed | |
| 9/30/2025 | Level 3 | OK | 0 | Passed | |
| 9/29/2025 | Level 3 | IL | 0 | Passed | |
| 9/15/2025 | Level 3 | SD | 0 | Passed | |
| 8/22/2025 | Level 3 | CO | 0 | Passed | |
| 7/31/2025 | Level 3 | IA | 1 | Passed | |
| 7/30/2025 | Level 3 | SD | 1 | Passed | |
| 6/20/2025 | Level 2 | IA | 1 | OOS Violation | |
| 5/30/2025 | Level 3 | IL | 0 | Passed | |
| 5/27/2025 | Level 3 | NE | 2 | Passed | |
| 4/25/2025 | Level 2 | IA | 1 | Passed | |
| 3/21/2025 | Level 2 | IA | 2 | Passed | |
| 3/11/2025 | Level 3 | IA | 2 | Passed | |
| 2/28/2025 | Level 2 | IA | 1 | OOS Violation | |
| 2/17/2025 | Level 3 | SD | 0 | Passed | |
| 2/10/2025 | Level 3 | SD | 1 | Passed | |
| 1/3/2025 | Level 3 | IA | 0 | Passed | |
| 1/3/2025 | Level 3 | SD | 2 | Passed | |
| 12/19/2024 | Level 3 | IL | 0 | Passed | |
| 12/7/2024 | Level 1 | WY | 1 | OOS Violation | |
| 11/13/2024 | Level 3 | PA | 1 | Passed | |
| 11/9/2024 | Level 3 | SD | 0 | Passed | |
| 9/18/2024 | Level 3 | IA | 1 | Passed | |
| 9/15/2024 | Level 3 | IL | 1 | Passed | |
| 7/18/2024 | Level 3 | SD | 2 | Passed | |
| 6/25/2024 | Level 3 | SD | 0 | Passed | |
| 6/2/2024 | Level 3 | IN | 5 | Passed | |
| 5/30/2024 | Level 3 | IA | 5 | Passed | |
| 5/22/2024 | Level 1 | OK | 8 | OOS Violation | |
| 4/11/2024 | Level 3 | SD | 0 | Passed | |
| 3/29/2024 | Level 3 | SD | 0 | Passed | |
| 3/6/2024 | Level 3 | SD | 0 | Passed | |
| 2/7/2024 | Level 3 | SD | 0 | Passed | |
| 2/3/2024 | Level 3 | IA | 1 | Passed | |
| 1/8/2024 | Level 2 | CO | 0 | Passed | |
| 12/23/2023 | Level 3 | SD | 0 | Passed | |
| 12/13/2023 | Level 2 | IA | 0 | Passed | |
| 12/12/2023 | Level 3 | SD | 0 | Passed | |
| 9/21/2023 | Level 3 | IA | 3 | Passed |
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Understanding This Report
Safety Rating is assigned after an FMCSA compliance review. “Satisfactory” means adequate safety controls are in place. “Conditional” means corrective action is needed. “Unsatisfactory” indicates a risk to public safety. Many carriers are “Not Rated” simply because they haven't been reviewed yet.
OOS violations are the most serious outcomes of a roadside inspection — the vehicle or driver is immediately taken off the road. A high OOS rate is a strong indicator of systemic maintenance or compliance issues.
For a deeper understanding, read our guides on CSA scores and DOT roadside inspection levels.