21. 109-meter ( 358-ft ) long spans consisted of bowstring-arch through trusses with double lattice girders . 22. A "'lattice girder "'is a truss girder where the flanges are connected by a lattice web. 23. As part of this the previously demolished bridge deck over the A382 road was replaced in March 2011 by a new lattice girder structure. 24. The use of laced struts within a lattice girder can be seen in the two photographs of the c1860s lattice girder bridge at Llandeilo. 25. The use of laced struts within a lattice girder can be seen in the two photographs of the c1860s lattice girder bridge at Llandeilo. 26. The bridge conisted of 6 spans, each of 109-meter ( 358 feet ) bowstring arch through trusses with double lattice girders . 27. It was built of stone arches instead of lattice girders , as many railway bridges were at the time, to avoid contemporary criticism. 28. As with lattice girders , laced struts and ties have generally been supplanted by hollow box sections, which are more economic with modern technology. 29. Such a member is better described as a " laced strut ", and such members frequently form a significant part of a lattice girder . 30. His recommendation therefore like Liddell to the board of the BRC was for steel lattice girders spans, set atop brick-built supporting columns.
