State:                                      ILLINOIS

 

Agency:                                   ILLINOIS DEPARTMENT OF TRANSPORTATION - DISTRICT 9                

 

Project and/or Route Name: ILL. 3, SOUTH OF THEBES TO GALE                                                           

                                                   ALEXANDER COUNTY                                                                                   

 

Dates:                                     1983 - 1989

 

Rural and/or Urban:              RURAL

 

Length:                                   7.5 MILES

 

Type of Improvement:          TWO-LANE RELOCATION; ENVIRONMENTAL ASSESSMENT

                                                AND PLANS

 

Firm's Project Mgr. & Engr.: MICHAEL G. BRUCE, P.E., L.S., VICE PRESIDENT, FIRM PRINCIPAL     

Firm’s Project Technician:   JAMES T. HAGAN, L.S., DESIGN TECHNICIAN                                             

 

Project Description: Phase I of this project included surveys, preparation of a Location/Design Study and preparation of an Environmental Assessment.  Three alternatives were considered in the study:  (1) a relocation crisscrossing the existing road, (2) widening and resurfacing the existing road and (3) widening and resurfacing with grade improvements.  The south end terrain was close-spaced hills in a rural wooded area.  The north end of the relocation left the existing road crossing a railroad cut to provide new access to Thebes.  It then followed the Mississippi River bank until connecting with the existing highway at the levee north of Sexton Creek.  Both wetlands and eagle roosts were involved in this part of the project.

 

Phase II of the project included preparing construction plans in two sections for the 4.6 mile length south of Thebes including a multi-box culvert, and staged construction plans for maintaining traffic with earthwork balances for each stage.

 

The Consultant was responsible for:

1.         Field surveys.

2.         Preparation of a Location/Design Study and DBE preparation of an Environmental Assessment.

3.         All necessary office work to provide grade, drain, surfacing plans and special provisions for construction of the south project in two grading sections and one paving contract.

4.         Maintenance of traffic plans, including staged construction details and detours.

5.         Hydraulic analyses of multi-box culvert situations and preparation of drainage calculations and folders.

6.         Structural design of multi-box culverts and slope-tapered inlets.

7.         Pavement design.

8.         Signing and striping plans.

 

The Department was responsible for:

1.         Photogrammetric services, including manuscripts.

2.         Geotechnical Investigations.

3.         Right-of-way Plans and Plats.

4.         Special Environmental Studies and Coordination.

5.         Bridge Plans and north section Roadway Plans.