Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Abandoned (or lost?) steel arch bridge over a ravine on Bluffs Edge Drive in Lake Forest
Location
Lake Forest, Lake County, Illinois
Status
Closed to all traffic as of 1997
History
Built 1896
Design
Steel arch
Dimensions
Total length: 140.0 ft.
Deck width: 16.4 ft.
Approximate latitude, longitude
+42.23528, -87.81611   (decimal degrees)
42°14'07" N, 87°48'58" W   (degrees°minutes'seconds")
Inventory numbers
IL 049-6857 (Illinois bridge number)
BH 15423 (Bridgehunter.com ID)