Since Fred Wilson & Associates began in 1962, the firmís transportation engineering has focused on projects for the Florida Department of Transportation (FDOT). FW&A has designed over 100 miles of Floridaís interstate highway system and proudly supports FDOTís efforts to improve and expand the Stateís transportation infrastructure.

The following projects reflect the diversity of FW&A's engineering history with FDOT.

Design of the Acosta Bridge/Approach Replacement in Downtown Jacksonville, Florida (FDOT Dist. 2)

The most significant project in FW&Aís history spans the St. Johns River in downtown Jacksonville, Florida. FW&A functioned as the lead design firm for the $165 million Acosta Bridge replacement. The 1,645-foot river crossing has six lanes, supported by two identical 75-foot-wide, cast-in-place, segmental concrete box girders. DRC Consultants of Flushing, New York, provided structural engineering services for the main river crossing, the longest of its kind in the nation.

The north and south approaches (supported with structural steel) included a four-level ramp interchange and railroad overpasses. The approach structure also interfaced with local streets and the Skyway Express people moving system. The Skyway Express crosses the river on the interior wing of each new bridge deck.

FW&Aís president and chief civil engineer, Frank Wilson II, P.E., served as project manager. For his accomplishments in this role, the Florida Engineering Society awarded him the 1999 Outstanding Technical Achievement Award.

Design of New Interchange and Roadway Improvements to I-295 (SR-9A) and Philips Highway (US-1) in Jacksonville, Florida (FDOT Dist. 2)

For more than 20 years, the design and construction of SR-9A has been one of FDOTís highest priorities in Jacksonville, Florida. Once complete, SR-9A will become the easterly branch of I-295, a limited-access beltway system that will allow I-95 traffic to bypass the cityís population center. FDOT selected FW&A to design a new SR-9A overpass to cross Philips Highway (SR-5/US-1) and the Florida East Coast Railway (FECR).

For the first phase of the project, FW&A designed the southern extension of SR-9A to meet Philips Highway. The firm also designed upgrades to one mile of Philips Highway, creating a six-lane divided highway with continuous right-turn lanes. The second phase included an eight-lane overpass with interchange loops over Philips and FECR.

Final construction costs totaled almost $50 million.

Design of Lane Additions and Drainage Upgrades to the Doctors Inlet Bridge and Roadway Approaches in Orange Park, Florida (FDOT Dist. 2)

Only two major roadways run north and south through the Town of Orange Park. One of those routes (SR-15/US-17) crosses a major waterway where the St. Johns River intersects Doctors Lake. FDOT selected Fred Wilson & Associates to design additional lanes to the existing four-lane Doctors Inlet Bridge. Once constructed, the project will complete FDOTís long-term goal to make SR-15 a six-lane highway from Jacksonville to Green Cove Springs.

The existing bridge, designed by FW&A in the 1960s, consisted of two separate two-lane structures. FW&Aís design concept added one traffic lane to the west side of the western-most structure. A second lane was added to the space between the two bridge structures, which eliminated the need to acquire expensive property on the east side of the bridge. FW&A also designed the stormwater drainage system, provided wetlands mitigation and secured environmental permitting.

FW&A received outstanding scores throughout the project. The client particularly favored the firmís drainage solution. FDOT needed to acquire additional property for stormwater ponds, but adjacent lots were cost-prohibitive. FW&A mitigated the stormwater by separately treating runoff from nearby areas within the same drainage basin. The firm found a reasonably-priced parcel of land for the additional pond. The solution pleased the St. Johns River Water Management District and the Town of Orange Park, who will assume maintenance responsibilities for the pond.

The successful construction bid totaled about $32 million.