As it has from the first, Russia is achieving its objectives in Ukraine. The pipelines and the bridge are irritants, not really game changers except that they have prompted the Russians to intensify their efforts. From Dmitri Orlov at thesaker.is:
I keep trying to write serious articles about serious issues, but current events keep injecting minutiae into my train of thought, which I then have to spend time on. If I didn’t, many of my readers would think I am ignoring them, and that would be bad (in their esteemed opinion) because these current events are sooo important! Several large-diameter pipes get blown up at the bottom of the Baltic, which weren’t being used in any case. A truck bomb exploded on the bridge that links Crimea with Krasnodar, shutting it down for almost a whole day. Oh, and before we forget, Krasny Liman, a railroad junction in Donetsk was temporarily surrendered to the relentlessly attacking Ukrainians (mostly Polish mercenaries, actually) who drenched it in their blood and festooned it with their billowing entrails in the process. These and other less significant events have caused some small but noisy part of Russian social media to explode in consternation, baying for revenge and generally acting dissatisfied with the progress made since the Special Operation was declared on February 22, 2022. Sure enough, plenty of these hysterical voices are actually paid Ukrainian agents tasked with spreading fear, uncertainty and doubt and, sure enough, the Special Operation will proceed regardless, so this is all just a temporary annoyance. But I will comment on it because I feel that I have to, and then move on to more important things.
The bridge across the Kerch Strait was under discussion for many decades. It was in the planning stages even while Crimea was still an autonomy within the constitutionally intact Ukraine, prior to the US-instigated violent coup of 2014. After Crimea rejoined Russia, it became extremely important to create a ground transportation link between it and the mainland, and the bridge was built in record time. It was a massive undertaking and is a high-prestige item for the Russian government. But there have also been some organizational issues.