Wikimedi'Òc

Aerial view of the entire bridge crossing the Tennessee River looking up river. The swing bridge, when open, permits river navigational traffic to ply the river. Construction HAER ALA,36-BRIPO.V,1-2.tif - Fæ

General close-up view of the swing span bridge in the close position, looking upriver. The pivot-center pier is positioned in the center of Tennessee River. HAER ALA,36-BRIPO.V,1-1.tif - Fæ

Close-up view under the track at the center-pivot pier showing the system of distributing girders which transfer all the load of the swing span, both dead, live load, wind, HAER ALA,36-BRIPO.V,1-4.tif - Fæ

Detail of center of swing span rotation. Forty (40) rods radiate out from a center cap stand (like spokes on a bicycle) and hold 40 20-inch diameter wheels onto a rim bearing HAER ALA,36-BRIPO.V,1-6.tif - Fæ

A general elevation view of the entire railroad bridge crossing the Tennessee River with the center-pivot pier of the 364' - 0-1-2' swing bridge positioned in the center of the HAER ALA,36-BRIPO.V,1-3.tif - Fæ

Detailed view top of center-pivot pier. HAER ALA,36-BRIPO.V,1-5.tif - Fæ

45-Degree view of one (1) arm of the swing span bridge in the open position. The view shows the continuous bottom chord of the truss. HAER ALA,36-BRIPO.V,1-9.tif - Fæ

Close-up view of a pin-connected joint where eye-bar and built-up members are connected with a single pin. HAER ALA,36-BRIPO.V,1-8.tif - Fæ

Detailed view of one (1) end of the swing span, supported on a rest pier, with the span in the closed position and in the train operational mode. Note the end truss bearing HAER ALA,36-BRIPO.V,1-12.tif - Fæ

Detailed view of one (1) arm of the swing bridge cantilevering out from the center-pivot pier on which the entire span is balanced at its center when in the open position. HAER ALA,36-BRIPO.V,1-10.tif - Fæ

Showing partial side view of swing bridge in open position. The operator's house is in the center of the truss bridge, directly over the center-pivot stone masonry pier. Note HAER ALA,36-BRIPO.V,1-7.tif - Fæ

A 15-degree sideview of the swing span bridge in the open position, with the 364' - 0-1-2' swing span balanced on the center-pivot pier where the two (2) center supports HAER ALA,36-BRIPO.V,1-13.tif - Fæ

Detail of middle panel at pivot pier and above the two (2) center supports. HAER ALA,36-BRIPO.V,1-15.tif - Fæ

Close-up view showing portion of continuous bottom chord of truss with other web members and posts of the truss connected thereto at a joint by the use of a large steel pin. HAER ALA,36-BRIPO.V,1-11.tif - Fæ

A 30-degree 'barrel shot' taken at track level showing operator's house in center of swing span and the track with timber ties. The ties are transverse (90-degree) to the HAER ALA,36-BRIPO.V,1-16.tif - Fæ

A 'barrel shot' looking down the track and through the 114'- 8-1-2' south thru truss approach span, showing pole line supported across top of steal superstructure. The 364' - HAER ALA,36-BRIPO.V,1-18.tif - Fæ

Close-up view of portion of swing-span truss showing members and their pin connections at joints. HAER ALA,36-BRIPO.V,1-17.tif - Fæ

Showing partial side view of swing span in closed position. The HAER ALA,36-BRIPO.V,1--14.tif - Aabdullayev851

General close-up view of the swing span bridge in the close position, looking upriver. The pivot-center pier is positioned in the center of Tennessee River. HAER ALA,36-BRIPO.V,1-1 (cut).jpg - Krib