Inventory Route Total Horizontal Clearance: No navigation control on waterway (bridge permit not required). The structure is toll-free and carries a toll-free highway. No posting required: Equal to or above legal loadsĨ: Bridge foundations determined to be stable for assessed or calculated scour conditions calculated scour is above top of footing.ġ: Inspected feature meets currently acceptable standards.ĥ: Bridge is not eligible for the National Register of Historic Places. Slight chance of overtopping roadway approaches. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting.Ĩ: Bridge deck above roadway approaches. Some minor scouring has occurred near curtain walls, wingwalls, or pipes. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Trees and brush restrict the channel.ħ: Shrinkage cracks, light scaling, and insignificant spalling which does not expose reinforcing steel. River control devices and/or embankment have major damage.
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