How soon might construction begin on these new roads, assuming the locals and the NIMBYS don't force the projects to be canceled?
There's no telling. $500 million isn't going to buy a whole lot; it's only 10% of the funding for the proposed 15 year plan.
I would hope OTA would at least get to work immediately on right of way acquisition with the East to West Connector. There isn't a lot of existing development along Indian Hills Road
at least for the time being (loud f***king hint). That $500 million pool should be more than enough to buy up the land and properties needed and leave quite a bit of funding left for other projects.
If OTA can at least get the ROW for the East to West Connector secured then they'll be able to proceed building out the turnpike as funding progress allows. I expect they'll build the turnpike in phases, starting with the frontage roads. Then the main lanes will follow. The 5-level stack interchange at I-35 could be the final project. I just hope it doesn't take OTA a friggin' decade to build it. It does seem like the East to West Connector and I-35 will initially operate in a "volleyball" connection with directional ramps getting added in phases. I'll be surprised if OTA builds the whole stack in one shot.
For all the griping the anti-turnpike crowd is doing; I'll bet if the East to West Connector is built-out at planned, with the 5-level stack interchange at I-35, the area around that connection with I-35 will BOOM commercially speaking. The parcels along the new turnpike will be magnets for new businesses, maybe even some high rises. The anti-turnpike folks will have to eat some crow then.
OTA has a lot of construction work to do with existing toll plazas and antiquated turnpike exits. Last weekend I drove up to Joplin for a sign industry convention. The H.E. Bailey Turnpike is technically all cash-less now. But a couple of the toll plazas are still very serious bottlenecks.
The Newcastle toll plaza has single PikePass lanes that go out-board from the existing cash toll plaza in the middle. Now all of the traffic is getting funneled through those single PikePass lanes. Temporary LED signs flash a message, "keep moving; we will bill you." Concrete barriers are blocking off the toll booth that was built in the late 1990's. Now they need to tear down that toll booth and re-do the main lanes through there (and then presumably remove those outboard PikePass lanes).
The Walters Toll Plaza is perhaps an even bigger mess. Basically the entire exit needs to be re-built.
Driving through either the Newcastle or Walters toll plazas is like driving through a construction zone. That's not going to be an acceptable arrangement for a long amount of time.