http://www.nsaarch.c...Rivervision.htm
The plan at its core, does a couple things:
1. Turns Storrow Drive into a surface street that reconnects with the grid, before going under-ground between Hereford and Mass ave, and having a below-grade interchange with the Pike near the Charles gate. It would handle similar capacities as Comm. Ave. today.
2. It extends the Blue Line from Charles/MGH (once state finally extends it to there) all the way to Kenmore Square. It does this by using the Storrow Dr. right-of-way, with stations at Arlington/Hatch Shell, at Mass Ave., and at the existing Kenmore station. The Blue Line then uses the existing D-branch of the Green Line's track and continues into the west. The D-Line would be eliminated, and replace with something remnisant of the old A, which would serve Harvard's new campus and extend across the Charles to Harvard Sq.
Map showing first two points.

3. Eliminate the Bowker Overpass at Charlesgate, and restore Muddy Creek, having it pass over the Pike. The Bowker Overpass is no longer needed with Storrow rerouted, and Charlesgate East and West extended from Beacon to Boylston.
4. The Esplenade is expanded and continues west past Mass Ave with new civic venue, trails, boating center, etc.
Map and birdseye view showing the last two points.


I understand the substantial cost in this, but now is the time to begin implementing the ideas as many of the infrastructure projects are about to begin, and would not be compatible with this vision. This vision takes the Charles River waterfront, the Back Bay, Kenmore, and the new Harvard Campus areas to whole new levels, while substantially increasing T service to downtown.














