ADKO Engineering

Construction Management

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SANTA FE AVE BRIDGE REPLACEMENT

ADKO Engineering provided Myers & Sons with falsework, trestle and shoring design for Santa Fe Bridge over Tuolumne River, a 540 feet arched cast-in-place three span arched structure that is supported on 12-foot diameter CIDH Piles and 7 foot columns.

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2017 Earthquake Repairs County of Napa

ADKO is providing PS&E for the following earthquake damaged sites:

  1. DAF 17 Old Sonoma Road Stone Culvert: The project consists of repairing the existing unreinforced mortared stone masonry culvert wingwall. The culvert wingwall repair will consist of drill and bond dowels into the damaged wingwalls and provide stream diversion. Extensive cracks (1” wide) in the stone arch culvert and cracks in pavement.
  2. DAF 19 Yountville Crossroad Bridge : The proposed project would include repairing the following items that were damaged during the 2014 Earthquake. The proposed project includes replacing the 2 ½”x9”x18” elastomeric bearing pads (total 5) at abutment 1 using hydraulic jacks.
    • Reconstruct 40 feet long by 39’-6” wide roadway approaches. The roadway approaches consist of 0.3” AC and 1.3’ aggregate base. All work will be done from at the roadway surface.
    • Replace the cracked 2.2”x2.5”x 4.5”shear key at abutment 1 south by removing the existing concrete and protecting the existing shear key rebars.  Dowels will be added to connect the replacement shear key to the abutment by jack hammering the spalled concrete.
    • No vegetation will be removed.  Minor trimming of vegetation, if any, is expected along the shear key repair area. Yountville Crossroad bridge consist of a six spans continuous PC/PS “I” Girder total 5 with reinforced concrete deck and reinforced concrete pier walls with reinforced cantilever seat-type abutments and monolithic wingwalls.
  3. DAF 20 Silverado Trail MPM 1.47: The project consists of repairing the existing unreinforced mortared stone masonry culvert that was damaged during the 2014 earthquake. The culvert repair will consistof drill and bond dowels into the damaged culvert and provide stream diversion. Cracks and missing mortar between stone, at West side of structure.
  4. DAF 22 Silverado Trail Talpin Road: The proposed project would include replacing the north barrier that was damaged during the 2014 Earthquake. The damages include barrier cracks, missing mortar between stone, and missing stones on stone barrier.
  5. DAF 23 Silverado Trail MPM 26.50: The proposed project would include replacing the north barrier that was damaged during the 2014 Earthquake. The damages include barrier cracks, missing mortar between stone, and missing stones on stone barrier.
  6. DAF 24 Silverado Trail MPM 0.16: The proposed project would include repairing the Cracks at both ends of wingwalls at North side of structure. the north barrier that was damaged during the 2014 Earthquake.
  7. DAF 25 Silverado Trail MPM 10.64: The project consists of repairing the existing unreinforced mortared stone masonry culvert wingwall. The culvert wingwall repair will consist of drill and bond dowels into the damaged wingwalls and provide stream diversion.

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Sperry Road Extension Project

ADKO Engineering was selected to provide Construction Management for the construction of new five bridges for Sperry Road Extension Project. These new five bridges consist of 3 span cast-in-place P/S box girder on seat type abutments and 648-14” square Precast P/S Concrete Piles. Coordination included multiple projects in the vicinity of the project. This includes PG&E’s raising of power lines and Delta Water.  Consultant’s responsibilities: Provided Structures Representative on site. Coordination with other agencies, on-going consultation and interpretation of construction documents during the construction of the proposed project, attended the project pre-construction meeting; reviewed and commented on contract change orders; prepared plan revisions as necessitated by contract change orders; provided construction engineering assistance as required; reviewed and approved all submittals and shop drawings.

Construction Value: $60 Million
ADKO Fee: $1,500,000
Client Reference: Omar Al Hindi