Q A_0523.pdf

Project No.: OR BLM MED 2015 (1)

Project: Quartz Creek Culvert Replacement

# General Technical Question Answer Date

1 X

Sheet No J.2 and J.3 shows the bottom of the foundation in a stepped configuration.

Is this a required design element or just a typical detail?

Typical Detail for this project and will be field adjusted to fit the conditions.

2 X

Sheet No J.4 in the Foundation Design Notes state “Prepare a foundation design report for approval by the CO. As a minimum, the foundation report will include a description of the existing conditions, recommendations for the proposed foundation type and details, erosion protection and dewatering recommendations.”

This is typically the work of a geotechnical engineer produced prior to the design of the foundations by a structural engineer. Is it the intent of this contract to have a qualified engineer undergo a subsurface investigation prior to the commencement of design of the foundation?

Yes

3 X

Sheet No. J.4 Arch Base Channel Detail

Is the utilization of a base channel required or can an alternate connection detail be utilized?

Bid as shown and the successful bidder may discuss changes to the connection detail after award.

4 X

Sheet J4 General Notes refers to “Factored Bearing Resistance: 1 Ton/Sq Ft”.

The Foundation Design Notes indicate that bedrock will be encountered and give direction on anchorage to the bedrock.

Can the designer use a higher bearing resistance if the design is to anchor the bottom of the footing to the bedrock?

Yes.

5 Where do we find the drawings for all concrete on the pipe?

See Section 602 in the SCRs and the J plan sheets

6 x Is there a Geo Report at each culvert location? no

7 x If there is a Geo report can we get a copy of the report? no

8 x Does all rock material need to come from a weed free certified quarry?

yes

9 x Can a Hydration controlling admixture be used in the concrete?

yes

10 x

Is there a designated stock pile site available for excavated materials, prior to backfilling? See Section 105 in the solicitation x

If no designated stockpile site, can we use existing roads and cleared areas for stockpiling excavated materials? See Section 105 in the solicitation x

Is there any material available at the quarry site shown on cover sheet A.1, that can be used on the project. See Section 105 in the solicitation x

Is there a waste area available for unsuitable or excess excavated material at either project site? See Section 204 in FP‐03

14 x

At QCC site will the footings be required to set into Bed Rock or on top of Bed

Rock? See J.4 plan sheet

15 x Is there a designated borrow area for Bid item 20403‐0000?

See Section 105 in the solicitation

16 x Classification for borrow material? See Section 704 in FP‐03

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5/13/2016

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