A 7news article from 2006 about the bridge:http://www.7newsbelize.com/sstory.php?nid=4986&frmsrch=1
Some items of interest from the article:
1)"build in just four months by 30 men for $750,000"
2)"has a capacity of twenty to twenty five tons with a safety factor of 30% so that means it can hold up to 30 to 35 tons." (when new of course)
3) "Bowen is providing the financing for 5 years at a rate of 12%"
Just a side note: a tank may weigh 40,000 pounds (I don't know), but a large tandem axel dump truck can easily have a GVW in the 60,000 pound range, and the trucks can comfortably handle loads well past the GVW.
Are these type of trucks using the bridge? I don't know, as I don't go to the bridge often. I have seen loaded trucks driving in town that are obviously well past their GVW, but I don't know where they are going. The bridge?