H&H is the lead designer, responsible for roadway, drainage, permitting, temporary traffic control, tolling, bridge and retaining wall design, and coordinating five subconsultants for the SR 826 Palmetto Expressway Design-Build Project.
The multi-lane, limited access expressway connects SR 826, I-75, Florida’s Turnpike, and I-95 in Miami-Dade County. The recent completion of express lanes revealed the need for additional operational improvements with expedited delivery through design-build. The project will provide an additional southbound lane, auxiliary lanes, improved shoulder widths, major NW 103rd Street interchange modifications, revised lane access to the SB express lanes, a new toll site, and safety improvements on the adjoining frontage road system.
H&H work has included providing roadway/drainage design for four miles of expressway widening and resurfacing and five miles of frontage road improvements, including new paved shoulders and sidewalks while avoiding utility impacts on this schedule-critical project. The drainage network includes an extensive French drain system and the conversion of a conceptual permit to two construction permits.
Structures design for the diverse improvements has included 3R improvements to two frontage road bridges over the Little River Canal, widening of SB structures over Metrorail and FEC railroads, widening of NB and SB bridges over NW 103rd Ave., and major modifications to the 103rd Ave flyover, including a pier relocation and a lane reduction.
The project is estimated to be completed in 2025 with a construction cost of $66.05 million.
