State: KENTUCKY

Agency: KENTUCKY TRANSPORTATION CABINET - DISTRICT 8

Project and/or Route Name: KY 90 OVER LAKE CUMBERLAND NEAR BRONSTON, PHASE I

PULASKI COUNTY

Dates: 1996 - 1997

Rural and/or Urban: RURAL

Length: 1,500 FEET (2.8 KILOMETERS)

Type of Improvement: STUDY ALTERNATIVE LOCATIONS AND STRUCTURE TYPES FOR REPLACEMENT STUDY OF THE EXISTING BRIDGE AND APPROACHES WITH A 4-LANE IMPROVEMENT.

Firm's Structural Proj. Mgr: ROBERT B. QUISENBERRY, P.E.,SR. V.P., FIRM PRINCIPAL

Firm's Structural Proj Engr: PAUL L. HENDRICK, P.E., PROJECT DESIGN ENGINEER

Firm's Roadway Proj. Mgr.: MICHAEL G. BRUCE, P.E., L.S., VICE PRESIDENT, FIRM PRINCIPAL

Firm's Roadway Proj. Engr.: THOMAS D. WILLIAMS, P.E., PROJECT DESIGN ENGINEER

SUB-CONTRACT: MICHAEL BAKER, JR., INC. - J. B. WILLIAMS

Project Description:

Alternative structure types were studies, including steel deck truss, concrete segmental box girder, and steel plate girder with optimized substructures for each for the 470 meter long crossing. The bridge will rise 31 meters above normal pool with water depth at 46 meters. Also considered in the substructure design was a power storage fluctuation level of 26 meters. Alternative roadway locations were studied north and south of the existing road and using the existing road. Also studied was frontage road service to adjacent neighborhoods. The estimated cost of the bridge is $22.8 million and the roadway project is $4.65 million.

The Consultant was responsible for:

1. Additional topographic surveys.

2. Property owner deed research.

3. Preliminary roadway design and location studies through PL & G.

4. Alternative structure studies with subconsultant Michael Baker, Jr., Inc. and preparation of a structure design report with cost evaluations.

The Department was responsible for:

1. Photogrammetric mapping and digital terrain models.

2. All environmental studies.