build HSR California

Road 27 Grade Separation


Construction is currently underway on an overcrossing that will carry traffic over future high-speed and existing BNSF rail lines outside the town of Madera, eliminating an existing at grade crossing.


On Road 27 between Club Drive and Avenue 17 near Madera Acres.


At the northern end of Construction Package 1, crews have completed pouring concrete to connect the girder sections on the massive structure in Madera County, and are pouring diaphragms that laterally connect the girders for stiffening. Next, the contractor will be post-tensioning the girders. Post-tensioning is a way to reinforce the girders further. Steel cables are strung through ducts in the girders and are then pulled tight and tensioned. This structure is a spliced girder bridge which is unique to the area and was necessary due to the existing road geometry. Ultimately, the bridge will be nearly 650 feet long with frontage roads providing access to local homes along the sides.

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