Philip G. Bowker Overpass, named for a state senator, is a steel beam bridge with a suspended deck carrying The Charlesgate over Commonwealth Avenue, Beacon Street, and Interstate 90. It connects Boylston Street to Storrow Drive. It runs parallel to the Muddy River. In 2011, there was talk about tearing down the bridge and widening local streets as some consider the bridge to be an eyesore, as well as the fact that it bisects a portion of the Emerald Necklace.

The entire route is in Boston, Suffolk County. All exits are unnumbered.

Location	mi	km	Destinations	Notes
Fenway–Kenmore	0.0	0.0	Boylston Street to Commonwealth Avenue / Fenway / Riverway	At-grade intersection
	0.05	0.080	Commonwealth Avenue – Kenmore Square	Northbound entrance feeds directly to westbound Storrow Drive
Back Bay	0.2	0.32	Storrow Drive west to I-90 / Route 2 west – Newton, Arlington
			Storrow Drive east to I-93 / US 1 / Route 28 north – Downtown Boston
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

• "Around the Neighborhood: Charlesgate Park, the Bowker Overpass, and Our Changing Urban Landscape". The Beehive (blog). Massachusetts Historical Society. 2014. Archived from the original on 2014-04-13. Retrieved 2014-04-11.