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West Solon Road over N. Branch Nippersink
McHenry County Division of Transportation, IL

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ERA is providing Phase I and II engineering services for the replacement of the West Solon Road over N. Branch of Nippersink (SN 056-3142) using federal funds. The Solon Road crossing is located adjacent to the Glacial Park State Natural Area and has several protected species including the Blanding’s turtles and two freshwater mussel species. The existing structure is a hydraulic restriction, requiring a raise in profile to meet the 1-foot of clearance over the 20-year storm. The Phase I engineering consists of a Project Development Report (PDR), Bridge Condition Report (BCR), Hydraulic Report, Wetland Delineation and Environmental assessments, Plats & Legals and public coordination.  Phase II engineering services included utility coordination, permitting, ROW Plats & legals, Plans, Specifications and Estimate (PS&E) and time of construction.

Warrenville

3S701 West Avenue
Suite 150
Warrenville, IL 60555

Phone:
​(630) 393-3060


Champaign

2416 Galen Drive
Champaign, IL 61821

Phone:
​(217) 351-6268


Chicago

10 S. Riverside Plaza
Suite 875

Chicago, IL 60606

Phone:
​(312) 474-7841


Milwaukee

342 N. Water Street
Suite 600
​Milwaukee, WI 53202

Phone:
​ (414) 238-9189


Denver

7535 East Hampden Avenue Suite 400
Denver, CO 80231

​​​​​Phone:
​(303) 790-9500

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