North/South Greenway Gap Closure
Client: Transportation Authority of Marin
Status: Construction Completed July 2022
Work completed during time with SGA.
Role: Construction Administration
Awards: California Transportation Foundation Active Transportation Project of the Year, 2023
Description: The North-South Greenway Gap Closure Project closes a key gap in the local and regional non-motorized transportation network between the Central Marin Ferry Connector Bridge (CMFC) and the existing multi-use paths at the intersection of Old Redwood Highway and Wornum Drive. The Project is bring delivered in two segments—the Northern Segment along US 101, and the Southern Segment along the future Sonoma-Marin Area Rail Transit (SMART) corridor.
The Northern Segment project replaces the existing narrow sidewalk on the US 101 Northbound off-ramp over Corte Madera Creek with a wider multi-use pathway. A new multi-use pathway along Old Redwood Highway is also included in the project to connect to the existing Greenbrae Highway 101 Pedestrian Overcrossing (POC). To design the connection over Corte Madera Creek, SGA met navigational requirements for watercraft, included architectural treatments for the bridge’s bent caps, and used coffering to minimize the visual massing of the structure. Where environmental sensitivity to the creek is necessary at night, bridge lighting is incorporated into the railings to illuminate the traveled way and prevent spillover of light. At the Greenbrae POC touchdown area, SGA’s design includes seating, architectural lighting, and pavement treatments for both safety and aesthetics.