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Caltrans Contract No. 04A4256

Bridge Projects Completed​

  • 04-3A23U3: Airport I/C + Soundwall

  • 04-0A1853: Old Redwood Highway OC

  • 04-4H6003: Rivers End Ret Walls

  • 04-2E7203: Br. Deck Methacrylate OL

  • 04-264143: Jameson Canyon Soil Nail

  • 04-2640U3: Petaluma River Bridge

  • 04-1A3203: Scofield OH Deck Rehab

  • 04-2640K3: Reconstruct Lakeville IC

  • 04-2640G3: Widen Bridge & HMA

  • 04-264073: MSN B1 Redwood Landfill

  • 04-2E7603: Treat Bridge; Jt Replace

  • 04-1706U3: 5th Avenue Rte 880

  • 04-3A9223: Widen Mainline and Br

  • 04-3A9213: Widen Freeway, Replace OC

  • 04-294913: 4th Caldecott Tunnel & Bldg

  • 04-4A07U3: Rte 580 Truck Climbing Lane

  • 04-450203: Tie-back & Soil Nail Walls

  • 04-4A0103: McCune Creek Approach Slabs

  • 04-0A0903: Widen Alamo Creek Bridge

  • 04-0A0903: Richmond San Rafael

  • 04-1A2903: Laguna De Santa Rosa Br

  • 04-4S6203: Rock Point Tie-Back Wall

  • 04-2908V3: I-580 WB Widening

  • 04-2908C3: I-580 WB HOV Lane

  • 04-2908E3: I-580 Rdway Widen & Rehab

  • 04-265603: Replace San Pedro Creek Br

As Prime CEI Consultant through CEI Consultant Contract No. 04A4256, PreScience provided structure construction engineering, management and inspection support services to Caltrans for over ten construction projects on the I-580 between Dublin and Livermore.​

Projects Completed​

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  • Roadway Widening & Rehabilitation Projects, I-580 PM 8.5 to 14.6

  • Roadway Widening & Rehabilitation Projects, I-580 PM 14.6 to 21.6

  • Widen Freeway, Bridges & Repave Hot Mix Asphalt, I-580 PM 7.8 to 19.1

  • Ramp Metering & TOS Project, I-580 PM 9.5 to 31.0

  • Truck Climbing Lane & Retaining Walls, I-580 PM PM 4.7 to 8.2

  • Widen Existing Highway and Bridge,  Rte 84 PM 25.5 to 27.1

  • Install and Upgrade Metal Beam Guardrail, I-580

Significant Projects

04A4256 (2).jpg

Interstate 580 Widening

04A4256 (1).jpg

Route 84 Widening

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