Use of an applied wearing surface on the bridge deck. Use of an integral wearing surface is not recommended if the section properties of the girder and the deck with prestressing is an aspect of the design. Use of a well-drained deck with adequate slope. Maintainability Maintainability is improved with the increase of durability described above. Inspectability lnspectability is improved by permitting access to all points of the structure.
All alternates provide the possibility of deck replacement.
The girders and supporting trusses are designed to carry the deck weight without prestressing. The supporting girders and trusses provide a working platform to avoid disruption of traffic below. The exception to this is the modular space truss which would require supporting falsework. All bridges can be widened with the addition of girders or trusses. Extension of the deck on the cantilever wings is not feasible due to the length of the overhangs and amount of prestressing provided.