Avenue 12 Grade Separation

Work is nearly complete at the Avenue 12 Grade Separation. Crews have shifted traffic onto the structure and are working to put the final touches on the structure itself including some profile grinding on the top of the roadway which will enhance the safety and ride along the roadway.

Pre-cast concrete deck panels have been placed to form the deck of the Avenue 12 overcrossing over the BNSF tracks east of Madera Community College. Crews will next begin setting rebar in preparation for an eventual deck concrete pour. The overcrossing being built alongside busy Avenue 12 will take traffic over the future high-speed trains and an existing BNSF line.

Initial paving has been completed on the west side of the Avenue 12 overcrossing, leading up to the high-speed rail overcrossing bridge section. Meanwhile crews are at work on the crossing over the BNSF freight lines at the east end of the structure. There, workers tie rebar for a section of the barrier walls off the sides of the abutment. The overcrossing east of Madera Community College will carry Avenue 12 traffic over the high-speed rail line and eliminate the existing freight rail crossing.

A little east of Madera Community College, crews have poured the concrete deck and barrier walls along the sides of the Avenue 12 high-speed rail overcrossing. Walls adjacent to the Avenue 12 overpass are also being constructed. The recent rains slowed down the progress of the footings, but walls are starting to be formed on the west side of the tracks. The realignment of the busy roadway with two separate bridges will take traffic over the high-speed rail line and the BNSF freight tracks a little further east.

A little east of Madera Community College, crews have poured the concrete deck and are now setting concrete forms for barrier walls along the sides of the Avenue 12 overcrossing. Walls adjacent to the Avenue 12 overpass crossing the existing freight rail line are also being constructed. The recent rains slowed down the progress of the footings, but walls are starting to be formed on the west side of the tracks. The realignment of the busy roadway with two separate bridges will take traffic over the high-speed rail line and the BNSF freight tracks a little further east.

Wing walls extending off the high-speed rail overpass at Avenue 12 in Madera County have been poured. Next, steel rebar will be placed and tied in preparation for a concrete deck pour. The realignment of the busy roadway with two separate bridges will take traffic over the future high-speed rail line and the BNSF freight tracks a little further east.

The Avenue 12 overcrossing over the BNSF freight tracks has its girders in place, and workers are building a retaining wall adjacent to the structure. The overcrossing, just east of Madera Community College in Madera County, will include one structure that will take traffic over the high-speed train alignment and a separate structure further east that will cross the freight tracks.

The section of the Avenue 12 overcrossing that goes over the BNSF freight tracks is beginning to take shape, and workers are currently building retaining wall footings adjacent to the structure. The Avenue 12 overcrossing will include one structure that will take traffic over the high-speed rail alignment and a separate structure further east that will cross the freight tracks.

Crews have now set the girders for the section of the Avenue 12 overcrossing that goes over the BNSF freight tracks, and continue to tie rebar for an eventual concrete pour at the deck section further to the west. The crossing just east of Madera Community College, will take traffic over the high-speed rail alignment and the freight tracks. Construction has also begun on the cast-in-place walls extending off the abutments, which will retain the earthen embankment.

MSE walls are complete on either side of the Avenue 12 bridge embankment, retaining the earthen fill on either side of the bridge. Earthmoving equipment is now working on the roadway grade. The dirt operation will focus on compacting the fill dirt that will carry traffic to the bridge structure and over the future high speed rail line.

A major milestone has been reached at the overcrossing for Avenue 12 in Madera County. Girders have been set for the bridge that will take traffic over the high-speed rail section of the crossing. Crews are now starting the preparatory work for the superstructure. This preparatory work includes installing overhang brackets on the exterior girders for a walkway, handrails for the crews, and installing safety tie off components on top of the girders to keep the crews safe. The structure will eventually carry traffic over the high-speed rail and a nearby freight line, a little east of Madera Community College.