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Railroad Bridges

Dates

Publication Date

Summary

Bridges-Rail in the United States According to The National Bridge Inspection Standards published in the Code of Federal Regulations (23 CFR 650.3), a bridge is: A structure including supports erected over a depression or an obstruction, such as water, highway, or railway, and having a track or passageway for carrying traffic or other moving loads. Each bridge was captured as a point which was placed in the center of the "main span" (highest and longest span). For bridges that cross navigable waterways, this was typically the part of the bridge over the navigation channel. If no "main span" was discernable using the imagery sources available, or if multiple non contiguous main spans were discernable, the point was [...]

Attached Files

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Shapefile: RRBRIDGES.zip
RRBRIDGES.shp 2.32 MB
RRBRIDGES.dbf 205.63 MB
RRBRIDGES.shx 679.07 KB
RRBRIDGES.prj 145 Bytes
RRBRIDGES.shp.xml
Potential Metadata Source

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383.97 KB
RRBRIDGES.sbn 812.93 KB
RRBRIDGES.sbx 20.39 KB

Purpose

Homeland Security Use Cases: Use cases describe how the data may be used and help to define and clarify requirements. 1) In the event of a threat against bridge infrastructure, this dataset may be used to locate bridges needing protection. 2) A bridge has failed or has been attacked. Characteristics of the bridge need to be known, such as weight rating, age, or last date of inspection. Nearby resources need to be identified and deployed. Nearby assets need to be protected or evacuated. 3) A resource for emergency route planning purposes. 4) A resource for situational awareness planning and response for federal government events. 5) A resource for identifying bridges at risk for failure due to age, condition, or construction method. 6) A resource for use in planning the transportation of hazardous material or highly important cargoes.

Map

Spatial Services

ScienceBase WMS

ScienceBase WFS

Communities

  • USGS Multi-Hazards Demonstration Project

Tags

Provenance

<p> TechniGraphics, Inc.</p>

Additional Information

Shapefile Extension

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