Studying the site

The Chain of Rocks Bridge is located at the northern boundary of St. Louis City, at the southern edge of an unnavigable 7-mile stretch of the Mississippi River. It is over 1 mile long and has a 22 degree bend in the middle due to the stability of the river bed along its path. It is the world's longest pedestrian bridge.

bridge photo

Photo by Finnegan Roy-Nyline

site mapping

Depending on the year, or even the month, the sediment and turbidity levels of the river change drastically. Whole sandbanks appear and disappear due to water levels and the sediment makeup of the Missouri and Mississippi Rivers at their confluence 7 miles to the north. The banks of the river are generally eroding, straightening out over time.

site model 1
site model 2

In this second iteration of site study, I was interested in adding the factor of man-made barriers like dams and river training structures to my study of sediment form.

Exploration of form

concept drawing
concept drawing
concept drawing
concept drawing
concept drawing
concept drawing
concept drawing
concept drawing
concept drawing
floor plan sketch 1
floor plan sketch 2
floor plan sketch 4
floor plan sketch 3

Energizing the space

light detail

Test circuit using Arduino and neopixels

light detail

I decided to translate the real-time data collected by sediment sensors in the river into a fluctuating LCD lighting system in the walls that is maintained by the designers and engineers occupying the space. This lighting condition serves to partition views for the team workers, add an element of scientific activity to the space, and attract pedestrians to further interact with the team members.

Final Proposal

rendering floor plan 1 floor plan 2
final section
final elevation

The final model was over 4 feet long, including the detailed bridge and supporting pylon.

model photo 1
model photo 2 model photo 3