1/18/2024 0 Comments Lowell az highway underpass![]() GEOTECHNICAL PROPERTIES AND RAILWAY LOADINGĮmbankment materials at the site consist of random mixtures of soils, slag, cinders and rock fragments, with a silty to clayey soil component predominating. Since the excavation support system was offset approximately 3 m (10 ft) from the centerline of the nearest track, the railway owner specified that the cumulative horizontal displacement at the top of the wall be limited to 19 mm (0.75 in) to control vertical settlement of the railbed. The prestressed tendons limited the horizontal wall displacement to permissible levels specified by the railway owner, and the reuse of the phase one shoring wall as the shoring wall for the second phase of bridge construction eliminated the need to extract and re-drive sheeting, resulting in reduced displacements and construction time.įor the construction of the West End improvement project described above, railway traffic on the existing embankment could not be interrupted, except for a brief period to shift tracks for each phase of construction. The general arrangement of this system is shown in Figure 1. The excavation support system consisted of opposing sheet pile walls (shoring and anchor walls) cross-tied with prestressed tendons beneath the railroad corridor. This paper provides a summary of the design and construction sequencing of a temporary sheet pile excavation support system that was constructed to facilitate the completion of this project. Brayman Construction Corporation has since completed this project. ![]() A roadway improvement project involving the construction of a new railway bridge and highway underpass was undertaken to eliminate this traffic circle and provide a direct connection between the West End Bridge and State Route 19. Until recently, traffic exiting Pittsburgh would use the West End Bridge to cross the Ohio River only to become entangled in the West End Circle, which consisted of two railway overpasses each out-of-alignment with the West End Bridge. 126, ASCE GeoTrans Conference, Los Angeles, CA, 2004, pp. We could not find any plaque or marker on the underpass itself indicated when it was built or its New Deal provenance.Geotechnical Engineering for Transportation Projects, Geotechnical Special Publication (GSP) No. The concrete is showing it age in places, but overall the underpass is in good condition and still carries a heavy load of highway and rail traffic. There are Moderne/Deco style touches to the detailing and the concrete is painted in light blue and yellow. Because the underpass is deep to allow large trucks to pass freely, the walls flanking the roadway extend for more than 50 feet in each direction. The underpass carries two lanes of traffic each direction and includes a raised pedestrian walkway on the west side. ![]() ![]() The PWA grant was awarded in June 1934 and the underpass was finished by Christmas (Cline, p. The underpass cost $125,000, of which the city contributed only $5,000. ![]() One of the highway projects was an underpass for Route 66 beneath the busy Santa Fe railroad line that passes through the center of Flagstaff, which greatly helped relieved traffic jams of cars and trucks waiting for trains to pass. The Public Works Administration (PWA) and the federal Bureau of Public Roads (BPR) funded a large amount of road building around Arizona during the New Deal. ![]()
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