amend04Vista Construction Questions Num 2.docx

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RECOVERY: MEXICAN CANYON TRESTLE PHASE ll PLATFORM CONSTRUCTION
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AG-9702-S-10-0347
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Questions and answers

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Text version

Mexican Canyon Trestle Clarifications and Answers to Questions

Drawings

· Corrected references on sheets L-5

Schedule

· Added site entrance signs: one for east bound traffic and one for west bound traffic.

· Added “Type 1-A” to the drop inlet item.

Questions

1. Rail details do not specify wall thickness of steel tubes. What is required?

ANSWER: The steel posts are HSS3x3x3/16

2. Sheet L5 Sections A-A & plan 4 call for 1" steel grating. Sheet L5 Section 7 calls for aluminum grating. Sheet S2.0 framing plan calls for 3/4" steel grating. Which is correct?

ANSWER: Use 3/4" steel grating

3. There is a note @ Detail 1, Sheet L-5 just below the section cut calling for 3 x 1/4" plate steel. What is this referring to?

ANSWER: See revised Sheet L-5; the callout was deleted.

4. Handrail notes @ detail 1 & 3 Sheet L-5 call for 1x1 1/4" tube top rail. @ plan 4 calls for 4x1 1/2" Tube. 4x1 1/2" is more readily available. Is this acceptable?

ANSWER: Structurally 4"x 1 1/2" is acceptable for top rail

5. How will the stream crossing be paid for?

ANSWER: The stream crossing is considered incidental to trail construction.

6. Will you allow the use of SPIV in lieu of the SPIII called out in the bid items?

ANSWER: Use SP III in your proposal; we may consider SP IV after award.

7. Can you provide more details or a standard reference for the drop inlet? The detail shown on sheet 39 (sub sheet PP) doesn’t detail the grate, rebar, etc. Can you please provide?

ANSWER: Use NMDOT Type 1-A drop inlet.

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