Section 39.03.01.315 - OVERWEIGHT PERMITS REQUIRING BRIDGE ANALYSIS01.Department Analysis. Requests to transport vehicles and/or loads at weights in excess of the weights allowed on a routine basis will require, at a minimum, an additional review and approval from the Department and may require an engineering analysis when structures are involved on the route(s) to be traveled. The Department may waive the requirement for engineering analysis provided sufficient prior analyses for similar loadings have been performed by the Department for the involved structures. A schematic drawing or other specific information with regard to placement of axles, distance between axles and/or wheels, and distribution of gross weight on axles and/or wheels may be requested when an engineering analysis is required.02.Single Axle Weight Restriction. Bridge approval is required when a single axle or steer axle is over thirty-five thousand (35,000) pounds.Idaho Admin. Code r. 39.03.01.315