Name

Span of

Widest

Opening.

Authority.

feet.

Bridge of Bassano, over the Brenta, by Palladio (truss)

36.8

Rondelet.

„ Cismone, near Bassano, by Palladio ......

108

"

„ Schaffhausen, by Grubenmann, 1757 (truss)

193

Cox's Travels

„ Walton-upon-Thames, by Etheridge, about) 1758 ...................

130

Smeaton.

Bridge of St. Clair, on the Rhone, by Morand, 1775

(truss) .................

45

Gauthey

Bridge of Tournus, on the Saone, by Ganthey, 1801......

89 1/2

"

„ La Cite', on the Seine, near Paris, by De-moutier, 1802 ................

104

"

Bridge over the Don, near Aberdeen, by James Bum,

1803 ................

109 1/4

Telford.

Bridge over the Schuylkill, near Philadelphia, by

Louis Wernwag (archell rib) ................

340

Stevenson.

Bridge over the Delaware, New Jersey, by Burr, 1804 (arched rib) ..............

200

"

Bridge of Landsberg, over the Lech, by Wiebeking, 1807 (arched rib) ..............

123

Wiebeking.

Bridge of Irsingen, over the Wertach, by ditto, 1808

(arched rib) ...............

126

"

Bridge of Freysingen, over the Isar, by ditto, 1808

(arched rib) ............

153

Bridge of Sharding, on the Rott, by ditto, 1809

(arched rib) ...........

194

"

Bridge of Bamberg, on the Regnitz, by ditto, 18091

(arched rib) ...........

208

"

Bridge over the Portsmouth River, America, by

Bludged (arched rib) ...........

250

Douglas.

Richmond Bridge, America, by Ithiel Town (lattice)

150

Cresy.

James River Bridge, on the Richmond and Petersburgh

Railway, by Moncure Robinson, 1838 (lattice)............

153

Bridge across the Susquehannali, by ditto

220

A Long's Frame Bridge over the Connecticut River, on the Western Railway............

170

Wenle's Bridges.'

The Bedford Bridge, a Howe truss strengthened by an arched rib, on the Cleveland and Pittsburgh Railway

243

Zerah Colburn

The River Nore Bridge, on the Waterford and Kilkenny Railway, by Capt. Moorsom, 1850 (lattice) ...........

200

Moorsom.

Bridge at Rock Island, over the Mississippi (a Howe truss)................

250

Zerah Colburn.

The Delaware Bridge, on the New York and Erie Railway (McCallum's principle) ........

262

"

The Clinton Bridge, on the Galena and Chicago Rail-way (McCallum's principle in 7 spans)......

200