This layer is a cartographic representation of where guardrails and cable rails have been installed on all interstates, state routes, TDOT maintained state park roads, and locally owned NHS routes. Th
The planimetric data was compiled by The Sanborn Map Company, Inc for the Metropolitan District and is based on an aerial flight performed in April 2015. In addition, the City's GIS staff has been upd
Lines representing protective guardrails in Portland. The types of guardrails include concrete barriers, post cables, flex beams, and rock barriers. The attribute information includes asset ownership,
