Caltrans Office Engineer

Viewing inquiries for 07-228204

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Inquiry #1: Regarding the drilled holes and CIDH piling on the seawall:

The special provisions indicate that "Difficult pile installation is anticipated due to the presence of caving soils, tidal flow fluctuation, ground water,cobbles and boulders, riprap and rock slope protection, portions of the existing seawalls, subsurface concrete debris,existing ground anchors, variation of bedrock elevations, and traffic control. The Contractor should anticipate using
temporary casings to construct the cast-in-drilled-hole concrete piles."

Please indicate how much rip rap, boulders, and other underground obstructions the State believes the Contractor will encounter.

If the State cannot quantify the amount of obstructions the contractor may encounter, similarly, the contractor cannot pre-determine how much of these materials will be encountered during the construction of the sea wall. Will the State consider paying for the drilling of, or removal of these obstructions on a Force Account basis?

Inquiry submitted 11/08/2012

Response #1:Refer to Plan Sheer 27 of 65, Contractor shall remove RSP in front of the seawall to accommodate construction of the curve face of the new wall. The existing sheet piles will be removed as indicated. We do not anticipate RSP behind the existing sheet piles, but if the Contractor encounters the RSP behind the existing sheet pile seawall, the state will compensate the Contractor for removal of the RSP on a force account basis.
Response posted 11/13/2012

Inquiry #2: Upon a site visit, it appears that the existing wall is CIDH and sheet pile. Is this the case? If so, is the sheet pile on both sides (ocean and highway) of the CIDH? Is there concrete between the CIDH? Where in the plans or specifications is what is actually existing noted?
Inquiry submitted 11/15/2012

Response #1:Refer to Typical Section Sheet 27 of 65 and Sheet 43 of 65, the existing seawall is composed of two layers of sheet piles spaced 3'3" apart and filled with PCC in between.
Response posted 11/15/2012

Inquiry #3: Regarding Bidder Inquiry #1 - Thank you for the response, but the State's answer was limited to RSP and the removal of RSP on force account. What about the other obstructions identified in the special provisions? Specifically, the ground anchors, concrete debris, cobble and boulders. Can the contractor assume that the State will pay for the removal of all these potential obstructions on a force account basis? If not, can the State please clarify how much/many of each of these types of obstructions the contractor can anticipate encountering? For example, how may ground anchors can the contractor anticipate having to drill through? How much concrete debris and in what maximum dimensions can the contract assume he will have to remove?
Inquiry submitted 11/16/2012

Response #1:Please bid per the current contract documents.
Response posted 11/16/2012

Inquiry #4: Please provide as-builts of the existing structure to be removed.
Inquiry submitted 11/19/2012

Response #1:"Refer to Section 2-1.03B, "Supplemental Project Information," in the Amendments to the Standard Specifications."
Response posted 11/19/2012

Inquiry #5: Reference the access ramp and access stairs shown within the contract structure plans - under what bid item(s) is this work measured and paid for?
Inquiry submitted 11/20/2012

Response #1:Please bid per the current contract documents.

Response posted 11/20/2012

The information provided in the responses to bidder inquiries is not a waiver of Section 2-1.03, “Examination of Plans, Specifications, Contract, and Site of Work,” of the Standard Specifications or any other provision of the contract, nor to excuse the contractor from full compliance with the contract. Bidders are cautioned that subsequent responses or contract addenda may change a previous response.