Highways & Roads

Highways & Roads


Florida's Turnpike - Designing Veterans Expressway Improvements sticky icon

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Introduction

Construction on the $380 million Veterans Expressway widening project started in summer 2013. When the project is completed, two lanes will be added in each direction: one an express lane, the other a general use toll lane. The project includes 65 Reinforced Earth® MSE walls, totaling 648,420 square feet of wall facing (11 football fields).

Challenges

Faster Travel Time Around Atlanta sticky icon

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To provide access to and from both travel directions of the adjacent mainline roadways, managed lanes are often constructed in the highway median. In this sometimes narrow space, Mechanically Stabilized Earth (MSE) retaining walls can efficiently retain grade differences across the median between the flanking mainline roadways, supporting ramps, and bridge abutments that are typical of reversible lanes.

Jimmy DeLoach Parkway Eases Flow of Panama Canal Freight: Relieves Truck Congestion sticky icon

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Did you know that the Panama Canal flows all the way to Savannah, Georgia?  Maybe not literally, but the Port of Savannah has the largest single container terminal in North America and, in its fiscal year ending June 30, 2015, handled 3.66 million Twenty-foot Equivalent [container] Units, or TEUs. The TEU is the standard measure of containerized freight, equivalent to 20 ft. x 8 ft. x 8 ft., and containers based on this standard can be moved seamlessly between ships and trucks.

SR 154 Bangerter Highway sticky icon

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Along the southern boundary of Riverton, UT, on the southern edge of the Salt Lake City metropolitan area, two major commuter routes intersected at grade in the middle of a rapidly-growing bedroom community and its supporting commercial development. The resulting traffic nightmares on both east/west Bangerter Highway (SR 154) and north/south South Redwood Road (SR 68) necessitated replacing this signalized intersection with a grade-separated interchange. Utah DOT (UDOT) required a single point urban interchange, with seismic design requirements of 0.66g for walls within 50 ft.

I-70/I-670 Interchange sticky icon

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Travelers going east or west through Columbus, Ohio, have three route options:  south of downtown along I-70, through downtown on I-670, or bypass the city using circumferential I-270.  All three routes are intersected at different points by I-71, which runs north-south across the city and straight through the heart of Columbus.  The downtown maze where I-70, I-71 and I-670 intersect has long been characterized by high traffic volumes, geometric deficiencies, closely spaced ramps requiring intricate weaving patterns, and a high percentage of both commercial vehicles and large

Bayonne Bridge Project Gets a Lift sticky icon

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Reinforced Earth® mechanically stabilized earth (MSE) retaining structures have long been known for their ability to support bridge abutments. Now, working with an innovative design-build contractor, The Reinforced Earth Company (RECo) is designing and supplying Reinforced Earth structures that also support bridge building.

Shored Reinforced Earth Walls Take on Challenging Terrain in North Carolina sticky icon

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In western North Carolina, in the mountainous terrain of the Pisgah National Forest, few roads are straight, fewer are level, and the combination of straight and level is almost non-existent.  Highways thread their way through meandering valleys or along folded and twisting hillsides, defining the shortest distance between towns.  Some roads, like NC Route 194, just cannot avoid the tortuous curves and terrifying switchbacks imposed by an unforgiving topography, sometimes seeming to trace the alignment of a piece of ribbon candy turned on edge.  Though in places barely two la

Denver's Engle P3 "Flies" Reinforced Earth Walls sticky icon

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Eagle P3 (East ­and ­Gold Line Enterprise Public-Private Partnership) project is part of the Denver Regional Transportation District's (RTD) FasTracks program, a voter-approved, 12-year, multi-billion-dollar transit expansion program that is building new commuter and light rail services throughout the RTD service area.

Milton Madison Replacement Bridge sticky icon

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A bridge born in 1929, as the Great Depression began, was reborn eight decades later as a result of the Great Recession.  Funded in part by a $20 million TIGER (Transportation Investment Generating Economic Recovery) grant from the American Recovery and Reinvestment Act of 2009, the Milton Madison replacement bridge carries 4 lanes of US 421 between Milton, KY and Madison, IN.  Originally constructed as a 2-lane, 20 ft. wide through truss bridge having only 16.8 ft.