Unfortunately this is not an issue I've ever been able to reproduce on my end though I've seen it reported a lot. It's either a hardware/driver issue or comes from a conflict with another addon. Let me know if you find anything to narrow down the cause of the issue.

tried that yesterday, no success so far :(.

still crashes, had it on video but OBS Didnt record fullscreen

Can you list your system specifications? If its a hardware issue I might be able to narrow it down from that.

Out of curiosity, have you played The Passing yet? For some people an issue originated from the fact that I used infected populations from the Passing and those model textures weren't precached for the people that had not yet played the Passing. I thought I had removed most of those infected populations in the newest version but if thats the issue it could very well be that I missed deleting a few of them.

Also typical things to check if you haven't done so yet: doing a file verification in L4D2's property settings in your steam library, making sure its not a conflict with another addon by removing all other addons temporarily, and updating your graphics drivers.

my rig:
GeForceGT630 (but upgrading to GTX1050 soon)
Intel i5 2500
CPU: 3.30GHz
running at a solid 7.96 RAM

as I said, I've already tried disabling addons and lowered my graphics to the lowest settings but it still crashes on the bridge

Yeah, those specs should be more than enough to run the map. I'd be interested to know if it ends up working with the updated graphics card, but I have a feeling the graphics card isn't the issue. Have you tried downloading it from gamemaps.com instead of from the steam workshop?

just tried it out, it was lag free up until the lift, got to the part where you had to go under the highway (next to the Ambulance with the 2 healthpacks) and I got an error text this time (finally)

"too many indices for Index Buffer. tell a programmer (35823>32768)"

maybe too much cars on the bridge, or too much infected spawned in.
either way I may have our answer

Okay, that does help narrow down things a bit, but not a lot. Are you saying the error popped up before the forklift event? (That's the only ambulance I can think of on that map.) And do you get that error consistently now?

Just about any type of resource in the map can fill up indices, such as geometry, textures, scripts, you name it. It's the type of error you would typically get when too many mods are used in conjunction with one another (custom player models, weapon models, and effects are common culprits), and it tends to affect people with older CPUs. (Your six year old i5-2500 processor model may be a contributing factor there.)

That being said, if you've disabled all your other mods and still get that error, that means that there might be something on the map using up just a little too many indices with the map, enough for people with older CPUs to get the error but not those with newer CPUs. Let me know if the error persists after multiple tries, feel free to add me on steam, and I might be able to troubleshoot it further.

yes it is before the forklift event. I may just have to save up and upgrade my CPU.

A mi se me crashea el mapa de Day Break

So, I'm getting the crashes on the bridge too- I take it no solution was ever found though...

I crashed after leaving the boat and crossing the bridge. As soon as I see the witch, crash.

Same happened to me, all seven playthroughs, crashed in roughly same spot on the bridge, not too far after you exit the lift.

I also have crashed on the bridge several times, around mid-bridge, not far after the lift like previously stated.

ami se me crashea apenas carga desde el menu principal