<p>In the United States, the federal weight limit for commercial trucks is <strong>80,000 pounds</strong> (approximately 36,287 kilograms). However, recent proposals aim to increase this limit to improve freight transportation efficiency.</p> <p>For example, Texas has proposed raising the maximum allowable weight from <strong>80,000 to 97,000 pounds</strong> (36,287 to 43,998 kilograms) on certain highways by requiring a sixth axle to better distribute the load.</p> <p>Still, studies have pointed out that increasing truck weight could have negative consequences on road infrastructure, particularly bridges. The Federal Highway Administration (FHWA) has reported that roughly 27% of bridges in the U.S. are either structurally deficient or functionally obsolete. Heavier trucks could accelerate the deterioration of these structures, leading to significant repair and maintenance costs.</p> <p>Additionally, a study by the U.S. Department of Transportation (USDOT) found that allowing six-axle, 91,000-pound trucks could divert over 2.3 million tons of freight annually from rail to roadways, further increasing the strain on highway infrastructure.</p> <p>In California, axle weight limits are strictly regulated: 12,000 pounds for the steer axle, 34,000 pounds for the drive axle, and 34,000 pounds for the trailer axle, with a maximum gross vehicle weight of 80,000 pounds. Any proposal to increase these limits must carefully consider the potential impact on existing infrastructure and the associated maintenance costs.</p>