Freight Facts and Figures 2011
Table 3-5. Commercial Vehicle Weight Enforcement Activities: 2005-2010
Federal and state governments are concerned about truck weight because of the damage that heavy trucks can do to roads and bridges. To monitor truck weight, approximately 198 million weighs were made in 2010, about 59 percent were weigh-in motion and 41 percent were static. Considerably less than 1 percent of weighs discover violations.
Table in Excel format | Historical data
Thousands
| 2006 | 2007 | 2008 | 2009 | 2010 | |
|---|---|---|---|---|---|
| All weighs | 229,451 | 217,444 | 200,419 | 182,257 | 198,565 |
| Weigh-in-motion | 142,599 | 132,258 | 119,826 | 116,176 | 118,026 |
| Static weighs, total1 | 86,852 | 85,186 | 80,593 | 66,081 | 80,539 |
| Semiportable scales | 423 | 426 | 358 | 373 | 285 |
| Fixed scales | 85,900 | 84,214 | 79,645 | 65,182 | 79,704 |
| Portable scales | 529 | 547 | 591 | 525 | 550 |
| Violations2 | 621 | 530 | 555 | 490 | 479 |
| Axle weight violations | 270 | 234 | 249 | 221 | 217 |
| Gross weight violations | 150 | 127 | 120 | 116 | 114 |
| Bridge weight violations | 202 | 170 | 186 | 153 | 148 |
| Permits3 | 4,598 | 4,828 | 5,216 | 4,529 | 4,839 |
| Non-divisible trip permits | 3,399 | 3,743 | 3,693 | 3,286 | 3,510 |
| Non-divisible annual permits | 251 | 332 | 322 | 299 | 303 |
| Divisible trip permits | 426 | 398 | 490 | 370 | 342 |
| Divisible annual permits | 522 | 354 | 710 | 574 | 683 |
1Static weights include the total number of vehicles weighed from semiportable, portable, and fixed scales.
2Violations include those from axle, gross, and bridge formula weight limits.
3Permits issued are for divisible and non-divisible loads on a trip or on an annual basis, as well as the overwidth movement of a divisible load.
Note:
Incomplete data from Washington, DC. (2008), Hawaii (2008, 2009, and 2010), Massachusetts (2010), Michigan (2008), Pennsylvania (2006), and South Dakota (2006 and 2007).
Source:
U.S. Department of Transportation, Federal Highway Administration, Office of Freight Management and Operations, Annual State Certifications of Size and Weight Enforcement on Federal-aid Highways, as prescribed under CFR Part 657, personal communication, August 31, 2011.
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