$24.$ The US $17$ bridge over the Dismal Swamp south of Chesapeake, VA is composed of three, five$-$span units with typical spans of $65\text{'}-8".($Each unit is a total of $328\text{'}-4"$ long, and the total bridge length is $985\text{'}.)$ Each unit has fixed bearings at two piers near the center of the unit and expansion bearings at all other supports. $($This means there are six piers with fixed bearings and $10$ other supports with expansion bearings.$)$ Determine the braking force, BR that must be applied to a single fixed pier.