TOMORROW'S ROADS TODAY - Maryland State Highway ...
TOMORROW'S ROADS TODAY - Maryland State Highway ...
TOMORROW'S ROADS TODAY - Maryland State Highway ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
68<br />
immediately beneath the driving surface), and the substructures (foundation and supporting posts and<br />
piers). General condition ratings range from 0 (failed condition) to 9 (excellent).<br />
Continuous Span Beam Bridge - A simple bridge made by linking one beam bridge to another; some of<br />
the longest bridges in the world are continuous span beam bridges.<br />
Crown - On road surfaces, where the center is the highest point and the surface slopes downward in<br />
opposite directions, assisting in drainage. Also a point at the top of an arch.<br />
Culvert - A drain, pipe or channel that allows water to pass under a road, railroad or embankment.<br />
Damping - The action of reducing the vibration of an object. This tends to return the vibrating object to<br />
its original position.<br />
Dead Load - The static load imposed by the weight of materials that make up the bridge structure itself.<br />
Debarment - Legally preventing a company or person from participation in bid lettings or construction<br />
proceedings.<br />
Deck - The roadway portion of a bridge, including shoulders. Most bridge decks are constructed as<br />
reinforced concrete slabs, but timber decks are still seen in rural areas and open-grid steel decks are<br />
used in some movable bridge designs.