Looking at the plans that Joe R. supplied, I'm beginning to have my suspicions that the Placer Parkway was developed primarily to function as a localized server for the newer housing tracts between SE Sutter County and Lincoln rather than a true bypass -- or part of one -- of the greater Sacramento area. While it looks as if it's going to be developed as a freeway facility, its connectivity is unclear -- or at least those plans are vague in their details. Got some questions that Joe, or possibly others, might be able to answer that could shed a bit of light on the purpose of this project.
First question (or set of related questions): While some of the ramps have been vaguely described in the documents supplied, the only graphics showed the location of the Whitney Ranch/CA 65 interchange, not the final configuration of the interchange. Will it be developed as a basic diamond with an added SB-EB loop? Or is what is described part of a full cloverleaf to be deployed in phases as the E-W facility develops? Or will it be just another Caltrans fave: a parclo instead of a freeway-to-freeway connection (Caltrans is to parclos what TXDOT is to volleyball interchanges!). Also: what configuration will the CA 99 terminus assume? The answers to these might shed a little light as to how all agencies involved define the Placer Parkway.
2nd question: Once completed, will the Placer Parkway be signed as a state highway?....and, if so, what designation will it receive? (102, 193, a number TBD?). Or will it remain an unsigned "county" facility: a la the Richmond Parkway, but built out as a freeway?
Final question: Are there extension plans -- is the Placer the center or west section of a larger corridor concept? Looking at the WRP development east of CA 65, it appears that if extended beyond the last housing tract that it serves, it would intersect Sierra College Blvd. about a mile and a half south of CA 193 -- more or less at the point where the UP eastbound main line tunnels under Sierra College. That raises the question as to whether the facility is intended to intersect I-80 at some point (which would position it as an effective northern "bypass" -- which may be in itself contrary to its current role as a boundary server for the housing tracts laid out between Lincoln and Rocklin). And will CA 99 be the ultimate western end of this facility, or will it eventually wrap around the north & west sides of Sacramento International and intersect I-5 somewhere around Garden Highway?
So -- is this the first phase of a bypass, or simply what happens when COG's, developers, and a funding-starved Caltrans parse out a formerly straightforward bypass concept?