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Zandra Massari

1195 Third St
Napa, CA 94559

(707) 253-4351

(707) 253-4627

HOWELL MOUNTAIN ROAD MPM 3.62 2017 STORM DAMAGE REPAIR – RETAINING WALL

S7115-31150

Napa County

Angwin, Napa County, CA

08/21/2017 at 3:30

The proposed repair to the slide is approximately 100’ long concrete grade beam wall supported with concrete CIDH (cast in place drilled hole) piles. The grade beam depth is 4’. The piles depth is approximately 25’.

Work will include:

• Mobilization
• Staging Area Setup
• Implementation on Erosion and Sediment Control Best Management Practices (BMP)
• Construction Area Signs per CAMUTCD standards and Special Provisions
• Temporary Traffic Control per CAMUTCD standards and Special Provisions
• Grading, excavation, backfill
• Grade beam wall over concrete CIDH piles
• Drainage facilities
• Utility coordination will be required.
• Auxiliary work shown on the plans and as directed by engineer.
• All construction activities including any temporary staging shall occur within County right of way unless directed otherwise by the engineer.
• Final cleanup
• Project Closeout

Requirements are listed in the Plans and Specifications. The Bonding and Insurance requirements are also listed in the specifications.