SR-60/Nason Avenue Interchange Project

SR-60/Nason Avenue Interchange Project

SR-60/Nason Avenue Interchange Improvement Project

moreno or nason (2)The SR-60/Nason project site is located at the State Route (SR) 60 Interchange and Nason Street in the City of Moreno Valley, CA. The work of this project generally includes replacement of the SR-60/Nason Street Overcrossing structure, construction of a sound wall between Elder Avenue and SR-60, widening of Nason Street from Fir to Elder Avenue, modification of the intersection and traffic signals at the intersections of the eastbound and westbound ramps and Nason Street, completion of auxiliary lanes, utility relocations, installation of irrigation, landscaping and hardscaping. Landscaping and irrigation will be under a separate construction contract and covered under the same above scope of services.

The work lies within and in the vicinity of State of California (Caltrans) and City of Moreno Valley rights of way.  The work includes bridge construction, sound wall, 24″ diameter Cast-in-Drill Hole (CIDH) piling for soundwall and bridge abutments, precast panels (sound wall), Rapid set concrete pavement (RSCP)(Ramp Termini) Asphalt Concrete (AC) paving, concrete retaining walls, tree removal roadway excavation, , imported borrow, drainage pipes and minor concrete structures, concrete curb and gutter, rock slope protection, drainage, traffic control, signing, striping, traffic and ramp meter signals, traffic signal interconnect, planting, irrigation, erosion control, utility coordination, irrigation, and related work. The City anticipates issuing a separate landscaping and irrigation construction contracts to install these elements immediately following completion of the bridge contract.

Technical Features:

  • Overcrossing Bridge Over Freeway.
  • CIP-PS Box Girder Bridge (two spans).
  • Hazardous waste (Asbestos) in existing bridge
  • Stage Construction.
  • Coordination with Moreno Beach Interchange.
  • CIDH Piles.
  • Hard drilling conditions due to decomposed granite layers Drainage Systems Improvement/Reconstruction.
  • Utility Relocation/Coordination.
  • Unique Aesthetic Features.
  • Roadway widening, local improvement (AC-PCC pavement, curb & gutter, sidewalk, signals & street lighting.


Completed, No Claims, within Budget and On Time.

Construction Cost:


Progress Photos:

2013 05 17 Approach Slab Reinforcing ASH

2013-04-19_07-53-59_622 2013 05 11 Falsework Removal WB ASH 2013 03 06 Abutment 1 ASH2013 03 06 Columns under Cure ASH