Attachment_4_Harlequin_Bridge_Weight_Limits.pdf

This is a Structure Load Rating document for the Harlequin Bridge (Structure No. 9470 011P), inspected on 8/1/16. The document presents load capacity ratings for five truck types under both normal traffic (inventory) and maximum load (operating) conditions, with capacities measured in both tons and metric tons.

The inventory ratings range from 40 tons (H trucks) to 50 tons (TYPE 3-3 trucks), while operating ratings range from 47 tons to 57 tons respectively. TYPE 3S2 trucks have the highest inventory and operating capacities at 47 and 53 tons. The design loading standard is HS20 (MS18), and the load rating calculation date is 7/16. The capacity for all truck types meets or exceeds the design load, as indicated by the X marked in the "Capacity Meets or Exceeds Design Load" box. The load rating is controlled by inventory L2L3 bolt strength and operating L2L3 slip resistance. The document includes diagrams showing conventional truck configurations (TYPE 3, TYPE 3S2, and TYPE 3-3) with legal load distributions and design truck specifications for H, HS, and all truck categories, noting that truck dimensions vary between states.