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San Martin Drive Pedestrian Experience
![The new pedestrian bridge at Johns Hopkins University in the preserved canopy is used by students...](https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web.jpg 2002w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-1536x1151.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-170x127.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-80x60.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-400x300.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-600x450.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-800x599.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-1200x899.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N32_web-1600x1199.jpg 1600w)
San Martin Drive is a historic roadway that defines the western edge of Johns Hopkins University’s Homewood campus. Winding along the steep Stony Run Valley, the forested drive is a critical north-south connection for pedestrians, cyclists, and vehicles. The transformed corridor creates an immersive walk through the woods on a pathway that preserves and enhances the natural ecology of the site and incorporates significant stormwater treatment measures to improve an impaired city waterway. The bridge solves pedestrian and vehicular safety issues while providing multiple welcoming gateway entrances to the university.
![Site Plan for San Martin Drive Pedestrian Improvements at Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web.jpg 1500w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-1187x1536.jpg 1187w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-108x140.jpg 108w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-62x80.jpg 62w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-309x400.jpg 309w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-464x600.jpg 464w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-618x800.jpg 618w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-927x1200.jpg 927w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N23_web-1236x1600.jpg 1236w)
![Campus Context for Johns Hopkins University’s San Martin Drive Improvements](https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web.jpg 1816w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-1536x1269.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-170x140.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-80x66.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-400x330.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-600x496.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-800x661.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-1200x991.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/0021375_01_N5_web-1600x1322.jpg 1600w)
The project encompasses a one-mile corridor extending the length of the western edge of campus, which is defined by an ecologically diverse natural edge. The roadway, tied to the Olmsted Brothers Landscape Architects report on Baltimore City parks from 1904, maintains and respects the historic street alignment, the beauty and integrity of an existing stone arch bridge, and the forest conservation area.
![Concept Design of Bridge Entrance Before Intervention at Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After.jpg 2400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-1536x992.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-2048x1323.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-170x110.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-80x52.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-400x258.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-600x388.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-800x517.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-1200x775.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/1_Bridge_After-1600x1033.jpg 1600w)
![New elevated pedestrian bridge along Johns Hopkins University’s San Martin Drive](https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web.jpg 2002w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-1536x1151.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-170x127.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-80x60.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-400x300.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-600x450.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-800x599.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-1200x899.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N31_web-1600x1199.jpg 1600w)
An elevated pedestrian bridge meanders through a densely wooded edge, creating a much-needed link in a topographically challenging and environmentally sensitive area. The resulting connection dramatically increases pedestrian safety while providing users a path through the canopy with views of the historic vehicular bridge.
![The new pedestrian bridge gives users a high canopy experience through the ravine at Johns Hopkins...](https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web.jpg 2002w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-1536x1151.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-170x127.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-80x60.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-400x300.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-600x450.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-800x599.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-1200x899.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N33_web-1600x1199.jpg 1600w)
![Pedestrian bridge along Johns Hopkins University’s San Martin Drive](https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web.jpg 1500w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-1151x1536.jpg 1151w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-105x140.jpg 105w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-60x80.jpg 60w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-300x400.jpg 300w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-450x600.jpg 450w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-599x800.jpg 599w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-899x1200.jpg 899w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21253_00_N38_web-1199x1600.jpg 1199w)
![Project goals and results for Johns Hopkins University’s San Martin Drive Pedestrian Improvements...](https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons.jpg 1941w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-1536x1187.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-170x131.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-80x62.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-400x309.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-600x464.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-800x618.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-1200x927.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Icons-1600x1236.jpg 1600w)
![The new bridge alignment through the tree topography.](https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-scaled.jpg 4229w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-1536x545.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-2048x726.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-170x60.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-80x28.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-400x142.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-600x213.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-800x284.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-1200x426.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-1600x568.jpg 1600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bid-Set-Drawings-2014.12-2400x851.jpg 2400w)
Our team worked closely with engineers to ensure the construction of the bridge had minimal impact on the adjacent canopy of trees. The design improved pedestrian safety with a variety of new traffic calming measures, including a 3-way stop at the “S” curve located at the JHU West Gate. The project incorporated significant increases in pedestrian and roadway lighting levels as well as a robust planting plan including dozens of street trees, hundreds of shrubs, and low-level plantings to complement the adjacent forest.
![Increased pedestrian connections and safety at Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web.jpg 1500w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-1141x1536.jpg 1141w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-104x140.jpg 104w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-59x80.jpg 59w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-297x400.jpg 297w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-446x600.jpg 446w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-594x800.jpg 594w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-892x1200.jpg 892w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N10_web-1189x1600.jpg 1189w)
![Bridge analysis diagram](https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected.jpg 1500w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-1044x1536.jpg 1044w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-1392x2048.jpg 1392w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-95x140.jpg 95w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-54x80.jpg 54w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-272x400.jpg 272w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-408x600.jpg 408w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-544x800.jpg 544w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-816x1200.jpg 816w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Bridge-Diagram_12-corrected-1087x1600.jpg 1087w)
![Streetscape improvements along Johns Hopkins University’s San Martin Drive](https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web.jpg 2250w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-1536x1024.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-2048x1365.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-170x113.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-80x53.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-400x267.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-600x400.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-800x533.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-1200x800.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N17_web-1600x1067.jpg 1600w)
The project included the creation of a new campus gateway. Taking design inspiration from the materials and forms of the original historic gates, the complementary gateways work together to establish a welcoming entry experience. An interconnected system of bioswales redirects and cleanses stormwater that otherwise carried pollutants into the watershed.
![Bioswale garden design at Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web.jpg 2250w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-1536x1024.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-2048x1365.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-170x113.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-80x53.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-400x267.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-600x400.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-800x533.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-1200x800.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_N4_web-1600x1067.jpg 1600w)
![New entrance at the West Gate of Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web.jpg 2250w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-1536x1024.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-2048x1365.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-170x113.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-80x53.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-400x267.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-600x400.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-800x533.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-1200x800.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/21375_00_web-1600x1067.jpg 1600w)
![Bioswale garden design at Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233.jpg 1500w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-1024x1536.jpg 1024w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-1365x2048.jpg 1365w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-93x140.jpg 93w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-53x80.jpg 53w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-267x400.jpg 267w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-400x600.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-533x800.jpg 533w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-800x1200.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/IMG_6233-1067x1600.jpg 1067w)
![Bioswale garden design at Johns Hopkins University](https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram.jpg 1941w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-1536x1187.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-170x131.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-80x62.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-400x309.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-600x464.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-800x618.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-1200x927.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU_SanMartinDrive_Stormwater-Diagram-1600x1236.jpg 1600w)
![South Entrance Elevation at San Martin Drive](https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-scaled.jpg 4844w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-1536x476.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-2048x634.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-170x53.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-80x25.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-400x124.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-600x186.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-800x248.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-1200x372.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-1600x495.jpg 1600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/JHU-San-Martin_South-Entry-Elevation-2400x743.jpg 2400w)
![Bioswale plant sampling](https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-scaled.jpg 6441w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-1536x358.jpg 1536w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-2048x477.jpg 2048w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-170x40.jpg 170w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-80x19.jpg 80w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-400x93.jpg 400w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-600x140.jpg 600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-800x186.jpg 800w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-1200x279.jpg 1200w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-1600x373.jpg 1600w, https://ayerssaintgross.com/wp-content/uploads/2022/02/Plant-Sampling_15-2400x559.jpg 2400w)