- Signs stored within 16 miles (25 km): 478 (478 from the state's sign permit list).
- Within 3 miles of the centre: 105.
- Traffic counts held: 3,448, 1,065 of them at 20,000+ vehicles a day.
- Busiest counted road: US 61, 89,260 vehicles a day.
- Busy roads with no stored sign within 1 km (0.6 mi): MO 141.
- Most signs near one road: I-55, 95.
Busiest counted roads
| Road | Vehicles a day | Signs within 1 km (0.6 mi) |
|---|---|---|
| US 61 | 89,260 | 37 |
| I-55 | 80,718 | 95 |
| I-255 | 64,342 | 19 |
| MO 231 | 38,647 | 1 |
| US 67 | 31,741 | 64 |
| MO 21 | 29,415 | 10 |
| MO 367 | 27,820 | 11 |
| MO 141 | 27,774 | 0 |
| MO 115 | 16,297 | 39 |
| MO 799 | 15,738 | 8 |
Where the signs are
I-55 (95), US 67 (64), MO 115 (39), US 61 (37), I-255 (19) and MO 367 (11).
| From the centre | Signs |
|---|---|
| Under 1.2 mi | 42 |
| 1.2 mi to 3.1 mi | 63 |
| 3.1 mi to 6.2 mi | 91 |
| 6.2 mi to 12.4 mi | 203 |
| 12.4 mi to 15.5 mi | 79 |
| Vehicles a day | Counts | No sign within 1 km (0.6 mi) |
|---|---|---|
| 20,000 to 50,000 | 645 | 79 |
| 50,000 to 100,000 | 420 | 118 |
| 100,000+ | 0 | 0 |
Sign rules: Missouri
- Spacing between signs: interstate 1,400 ft, federal-aid primary 1,400 ft (RSMo 226.540(3)(a)).
- Controlled area: 660 ft from the road (RSMo 226.540). The finder checks both for each ranked site.
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Last updated: 14 November 2026. Guide only. Confirm all results with a council planner before you rely on them.