0IL2403 - Alton IL Expanded DA.pdf

This document is a geographic boundary definition file for Alton, Illinois, detailing the expansion of a Disaster Area (DA) designation. The file includes a map visualization and coordinate specifications for both the original and expanded DA boundaries.

The Old DA coordinates establish four boundaries: a northern boundary along IL-255, IL-111, and Airport Road; a western boundary along Pierce Lane, Dellmar Ave, State Street, and Hwy 67; a southern boundary along Hwy 143, Hwy 140, and East Broadway; and an eastern boundary along Hwy 3, Hwy 111, and Fosterburg Rd. The New Expanded DA coordinates maintain the northern and western boundaries but extend the coverage area. The northern boundary remains unchanged at IL-255, IL-111, and Airport Road. The western boundary is identical to the original, extending along Pierce Lane, Dellmar Ave, State Street, Hwy 67, Hwy 143, and Lewis and Clark Blvd. The southern boundary is simplified to only Hwy 143, while the eastern boundary is significantly expanded to include Hwy 255, Vaughn Rd, Edwardsville Rd, 9th Street, Airline, and Hwy 255. The geographic map displays the Alton area with major highways, municipalities, and natural features marked, with a blue pin indicating the primary location of interest near East Alton.