This web page illustrates how some bridge piers, bridges and roadways of the freeway system are constructed.  The first image shows how the native saguaro was a major design inspiration for the bridge pier.  The saguaro pattern is cast-in-place into the concrete with varying depths and textures.  The lower outer left image is an example of one of many different types of large scale construction tractors used grade the roadways.  The lower middle image shows how a team of construction workers pouring a roadway curb with a cement truck mixer.  The lower right image illustrates how a bridge parapet/barrier is constructed in 10ft. segments with rebar in the center and form liners installed afterwards to cast the concrete pattern.  
freeway construction
   
home  | public  | design  | redmnt  | pima | santan  | i-10  | i-17  | us60  | const