RL1: Bridge/Structure Identification Number

Definition:

A unique federal inspection/inventory identifier assigned to a bridge, underpass, overpass, or tunnel bridge/structure that is also linkable to the national bridge inventory.

Source: Obtained by linking Crash Location (C5) to the Roadway Inventory data.

Attribute:

Number as described in Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation’s Bridges, December 1988, Federal Highway Administration, item 8 and HPMS/90, item 77.

Rationale:

Important to link specific geometric data describing the bridge for problem identification analysis and for determining the relationship between bridge structure characteristics and crashes.