The project involved final design plans, calculations, and specification for approximately 900 feet of roadway improvements and the removal and replacement of the existing 30-foot reinforced concrete slab structure carrying Fountain City Road over Haverstick Creek. The curved roadway alignment required the bridge superstructure to be placed on a new alignment while being super-elevated. The new integral abutments were placed on a 20° skew to the creek.
The roadway work included new horizontal and vertical alignments, drainage calculations, and right-of-way design. A hydraulic analysis was performed to ensure the new channel opening would adequately support the 50-year design storm. The bridge accommodates two lanes of traffic on a 36-foot roadway by providing a 41.5-foot, out-to-out bridge width.
The replacement single-span structure consists of a super-elevated reinforced concrete deck supported by six precast pre-stressed concrete I-girders. The deck was designed as a composite reinforced concrete slab integral with precast pre-stressed deck panels.
The precast pre-stressed concrete I-girders are supported by integral abutments. Due to the shallow rock depth, pile was pre-bored to a designed depth to provide adequate support and fixity for the structure.