This is the questionably

This is the questionably part(s)
 

I believe I have installed them correctly, BUT they are a bit too proud for the track that installs on the bridge beams. More to come.....

Do a search

Brian,

Try a search on swing bridges for railroads and see if you can get some pictures that show the tracks at the bridge ends. Could be the rails on land stick out over the end. 

I'd do a search but I'm using my hot spot on the phone and it's slower than ........ for doing  a search on the net.

Bernd

I don't have that bridge so

I don't have that bridge so my comments are made strickly from looking at drawings and photos.

In blowing up the photo on the box as large as possible on my 27" monitor, it appears that the piece in question overhangs the two bridge center beams by a little bit.  The drawing on page 4 indicates the rails are trimmed to the exaxt end of the piece in question, with the center rail being slightly longer than the side rail.

In looking at the drawings in the PDF instructions, it appears that the protrusion over the center two beams doesn't much exist, being almost even, then with the two side beams not being completely covered.

I would tend to have more faith in the built model photo than I would a drawing.  Some of Walther's drawings are a little bit sloppy at times.

Obviously, the reason for the shape of the plate in questions is to allow enough clearence for the bridge to clear the land side as it begins to rotate.

If I misinterupted your question and went off the deep end . . . sorry about that!

The Real Ones

Used an elaborate setup to actually lift the rails at the bridge ends to clear the fixed rails on the abutments. Of course, locks and associated signaling switches were all interconnected. Quite interesting. If the bridge is plainly visible it might be a fun project to simulate the rail lifts, wedges and rail lock rodding.

Good Luck, Ed

Photos of my concern

My first set of photos were out of focus (camera acting up).

One of the end pieces..
 

Upside down view that depicts those ridges that are molded onto the underside of those end pieces....
 

So I believe I have installed them correctly, BUT it results in a slightly proud piece that even the tie-less track has a problem clearing cleanly...
 

 

. . .

Look like a tie thickness related issue. Bridge designed for Atlas track that uses  a slight thicker tie. You notice this when using Walthers turnouts with Atlas track.

File a notch for the rail to pass thru  or remove both end parts and sand them down to the tie thickness.

This is what it should look

This is what it should look like, graciously posted on another forum. I guess I am surprised it was not designed for Atlas track, so universally utilized. Made me think i had made a mistake in the assembly of the bridge.

Bridge Track

Atlas track isn't bridge track.

The ties are a bit more "low profile" than they "should" be since it's just intended to be laid on flat surface and ballasted.

Bridge ties are longer and closer spaced than ballasted track, and since not buried in ballast, you kinda need to model the "full profile" depth of the ties.

Don't use Atlas track across the bridge if you want it to look halfway "right". Look for specifically Micro-Engineering, Walthers (They make the bridge kit, they should have appropriate bridge track for it), etc. "bridge track".

Look at the other completed photo and compare how the bridge track with the long, closely spaced, thicker ties compares to your Atlas.

. . .

As Chris points out..  Here is the reason

On the left is Atlas code 83  and on the right is Walthers specific  bridge track.

Walthers have discontinued the bridge track 948-886 and 948-899.  You could use Micro Engineering 11-101

Marc

That might be installed upside down....

Brian,

Pretty sure that part might be installed upside down, because the protrusions on the bottom ( your pic with the two arrows) look like those on on the top side of my Walthers ore dock approaches.  Looks to be something to keep the track "locked" in some kind of position with ties on either side of it.

Mike

taller ties

I think Chris got it correct, I likely needed some track with taller ties. I'm a little surprised that my Shinohara bridge track did NOt have those? 

Oh well, I sanded down those two end plates the slight amount to allow the use of my Shinohara track. Got things hooked up yesterday and actually ran some trains across my bridge yesterday.  Hallelujah

I'll post some photos over on the other subject thread about my swing down entrance-way bridge structure.