The Indian Creek Bridge on 41st Street in Miami Beach spans the Indian Creek Waterway, a body of water that separates the main land mass of Miami Beach and the city’s famed beachside hotels and resorts. It is an important transit link for pedestrians and vehicles alike. Our team was asked, as part of a larger streetscape project on 41st Street, to recommend aesthetic improvements to the bridge for both residents and tourists/visitors.
A fixed concrete bridge originally built in 1952 the bridge’s original cross-section consisted of a 2’-0” high wall topped by a 18” high aluminum railing, narrow sidewalks approximately seven feet wide, and 5 traffic lanes approximately thirteen feet wide. The existing lane configuration and traffic signage, coupled with the narrow sidewalks, caused traffic congestion and created an undesirable pedestrian experience. Upon analysis, the design team soon realized that by reconfiguring the bridge’s lane and sidewalk dimensions, without costly structural improvements, transit mobility and pedestrian “livability” could be significantly improved. Thus, the project evolved into a transit mobility improvement project with an aesthetic component.
First, the traffic lanes were reduced to the minimum width allowable. The space gained allowed the heavily-used sidewalks on each side to be widened by roughly six feet, making for a comfortable space for pedestrians, bicyclists, ADA access, and strollers. The lanes’ width reduction also improved traffic mobility by re-directing traffic movements north onto Indian Creek Drive to reflect present-day traffic flows.
The paving materials for the bridge extended the new streetscape’s concrete pavers over the bridge, interwoven with blue concrete pavers and recycled glass aggregate. The bridge walls were sheathed with glass mosaic tiles, patterned in an asymmetrical wave to reflect the water below. Due to their poor condition, the original streamlined aluminum bridge railings were removed, replaced with similar railings at a greater height to meet code.
An important project goal was to design a bridge that created a unique visual experience, both day and night. On e challenge was the need to provide certain minimum footcandle requirements on the DOT roadway. The solution was found in designing the custom light standards as sculptural bridge elements. In daytime, the light poles and actual lamps serve as vertical bridge accents, enhancing the sense of the bridge as a gateway onto the barrier island. At night, the lights create a dynamic display, utilizing LED-ringed downlights to meet DOT safety standards, simultaneously creating a computer-controlled light show in light columns framing the pole. The bridge’s exterior structure was highlighted with blue filtered metal halide lights, visible to boaters, residents, drivers and pedestrians along Indian Creek.