DRAINAGE & STORM WATER

ORT Design for Plazas 1, 5 & 7 for ISTHA

SINGH provided Civil Engineering services to the Tollway Authority as a subconsultant to HDR Engineering Inc. This project includes the construction of three toll plazas in Winnebago, Boone and McHenry Counties respectively.  Plaza 1 design was distinctive from other plazas as it was a completely new building located out in the country away from the municipal utility services. From the civil design perspective this required designing two separate septic systems for the main and annex buildings as well as providing water well supply system to both buildings. Construction cost $100M.

North South Tollway (I-355) for ISHTA

SINGH provided Civil Engineering services to the Tollway Authority as a subconsultant to IE Consultants, Inc. SINGH prepared plans, estimates and specifications for the drainage and erosion control of the North South Tollway from Mile Post 5.57 to Mile Post 8.03. The project also included construction of cross roads and interchanges at 151st Street, 143rd Street, and IL 171 (Archer Avenue).  Construction cost $100M.

US 20 Rohlwing Road to Addison Road, Civil Engineering
DuPage County, Illinois

This project for the Illinois Department of Transportation consisted of reconstruction of US Route 20, new drainage system and traffic signal modernization. SINGH was responsible for preparation of drainage and erosion control plans, specifications and quantity estimates for 2 miles of US 20 (Lake St.) between Rohlwing Rd. and Addison Rd. The work included design of 400 new storm drain inlets, five release control structures and adjustment of existing utility structures. Majority of the proposed storm sewers will be of watermain quality due to the large amount of water pipes located in the area. The layout of the new drainage system is also obstructed by the location of many different types of underground utilities. The total construction cost for this project is $12M.

IL 53, Elgin-O’Hare to Army Trail Road, Civil Engineering
DuPage County, Illinois

SINGH provided civil engineering services for the IL 53, Elgin-O’Hare to Army Trail Road. The entire project included pavement reconstruction and widening from one lane to two lanes in each direction. SINGH was responsible for preparation of location drainage study of four miles of the IL Rt. 53 (Rohlwing Rd.) between Army Trial Rd. and Elgin O’Hare Expressway. The scope of work was hydraulic and hydrologic analysis of the existing 10 culverts and 7 detention ponds. It also included Spring Brook floodway and floodplain encroachment calculations and preliminary cost estimates. The proposed drainage improvement included new storm sewer system design and detention storage calculations for 12 watersheds and 13 release control structure designs. The total construction cost for this project was $25M.

Iowa 100, Civil Engineering

This Iowa Department of Transportation project consists of extending the existing highway and constructing a new highway in Linn County. SINGH is providing civil engineering services for the hydraulic and hydrologic design and TS&L plan preparation for 3 new culverts under the Iowa 100 highway extension. The first 10.0’x6.0’ RCB culvert is located in the E Avenue interchange area. The existing drainage swale will be rerouted to follow the ditches on the east side of the E Avenue interchange ramps. The second 8.0’x6.0’ RCB culvert is a mainline Iowa 100 cross drainage structure. The third triple 12.0’x6.0’ RCB culvert will be located at Ushers Ferry Creek’s crossing of the mainline. Total construction cost for this project is $40M.