A slab bridge on a highway. To be designed:

Two columns, $2.$ Two foundations, $3.$ Two retaining walls

Prublem Statement:A highway bridge is to be designed across a canal having the following section view. The width of the highwar is $75$ tt having four lanes and shoulders. The wisth of the bridge deck will be $60$ ft including four lanes, divider and walkway alone both sides.

Reinforred concrete abutments are plamned as shown in the figure below. The center to center distance between the two abutments is the total span.

Design the columns. Since columns are identical, only one design should be performed. Columns are experiencing biaxial bending.

Design a combined footing under both columns.

Design one retaining wall. Two retaining walls are identical.

Prepare a report on the design procedure.

Show all design dimensions and reinforcements in neat drawings $($hand drawings, no CAD$)$

Assume All the values which are not given