|
Pedestrian Bridge |
The objective of the City of Tempe is to
realize an iconic bridge that closes the loop around Tempe Town Lake for
pedestrians and bicyclists. The bridge will be aligned on top of the
existing rubber dam in front of the new Tempe Center for the Arts. This
location demands a timeless design that does not compete with the
architecture of the Center for the Arts but rather complements it. A team of
designers, headed by T.Y. Lin International was selected to create the
design for the pedestrian bridge.
|
|

|
|
A
bow string arch bridge will cross the west dam of Town Lake. The three
existing piers that are part of the dam will support the four spans of
228 feet. In the design, steel pipes cross each other at two
intersections which results in a very dynamic appearance. Crossed cables
from the pipe arch support a 10 feet wide bridge deck that expands to 14
feet at the piers giving pedestrians and cyclists an opportunity to step
aside from the main bridge deck and take a break to enjoy the view. (Click picture for larger view)
|

|
|
To emphasize the triangular shapes of
this design a shading system using triangular pieces of canvas or metal
scrim will be placed at the view points. The "sun sails" flow down along
the main beams and connect the different arches, while giving shade at
the piers from 10 a.m. till 6 p.m. The shape of the shading structures
relate to the facetted roof of the Center for the Arts (click picture for
larger view). With only the cables
down lighted and the hand railing lighting the bridge deck, a timeless
and elegant sculpture will float across the lake when seen by night.
|
|
The bridge deck and north landing plaza will have a
change in the materials to mimic the shadow cast from the bridge at the
Spring and Fall equinox. The plaza provides an east and west ramp
transition for path users. This north landing is a terminus for the
bridge and public plaza to enjoy views of Town Lake, including the Tempe
Center for the Arts (TCA) and Salt River habitat restoration. The south
landing will remove the concrete wall and industrial picket fencing at
the edge of the TCA to provide an open and welcoming entrance to the
bridge.
|