The long saga described here and 67 comments here about the Poplar Ave interchange is in the news again and the Daily Journal has it partly accurate
As communities along Highway 101 consider how to improve congestion as well as safety at some of their outdated on-ramps, the cities of Burlingame and San Mateo will again consider whether to embark on multi-million dollar interchange project that could require eminent domain.
But this part was written by someone who has not driven through there lately
Currently, the five-way intersection at Poplar Avenue and Highway 101 has unregulated traffic coming off the freeway with drivers from three other directions trying to cross or enter the highway.
They should know that the barriers have gone up to preclude most of the options that used to exist for the five-ways in and out–especially the straight across the frontage road that was the most unexpected and hence dangerous. So we really haven't seen the effect of the recent changes yet.
Currently, two design alternatives include aligning southbound on- and off-ramps on the east side of Highway 101 along Amphlett Boulevard. Alternative 1 is estimated to cost $61.5 million and would have a smaller footprint by keeping the ramps tighter against the highway, therefore potentially requiring less right-of-way acquisition. However, that option may require Caltrans to provide exemptions to its design guidelines. Alternative 2 would involve spreading the ramps out a bit further from the highway, but would meet more of Caltrans’ standards and could potentially add capacity for more cars. That option also includes potentially widening the overpass bridge and could cost $76.4 million, according to city staff and consultants.
Sounds like it will be on the Dec 5th Bgame Council agenda.
Update: To save you the trouble of driving to see it in the rain, here is the construction as of the day of the original post



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