Shortline Sammie Wrote:
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> Fabulous coverage as usual! Having done this on a
> much smaller scale I am trying to get a scale
> perspective. Assume the ties are 8 x 8 and the
> outriggers are 4 x 8. The outriggers are
> pre-assembled to the tie with the j-bolts. This
> would put the ties @ 12" on center and the
> outrigger which supports the walkway is sandwiched
> between the j-bolt tie and the next one.
>
> Now I assume that the guardrail which appears to
> be 4 x 6 (by scale of the ties) is pre-drilled
> once up on the bridge deck with a jig that centers
> the J-bolt holes and spaces them @ 36" then placed
> over the J-bolts which are driven up from below.
> Question; how do they make sure the hook stays
> square to the beam flange when the bolts are
> tightened?
>
> Now if the ties and outriggers are a different
> size my assumed spacings are wrong but the same
> question on the guardrail still applies.
>
> Thanks Howard...you're the MAN!
>
> Dick Samuels
> Oregon Pacific Railroad

Dick,

I talked with the project engineer today and he said he would be glad to talk with you in detail to answer your questions. Do you want to talk directly him?