Rural and/or Urban: RURAL

Length: 500 FEET

Type of Improvement: BRIDGE REPLACEMENT AND RELOCATION

Firm's Project Manager: PAUL L. HENDRICK, P.E., ASSOCIATE FIRM PRINCIPAL

Firm's Project Engineer: CHARLES P. STREHL, P.E., PROJECT DESIGN ENGINEER

Project Description :

This project involved the widening of the median and the addition of two lanes to I-65 from Elizabethtown to Louisville. This section of I-65 was built as the Kentucky Turnpike in the early 50's and with traffic counts projected to be as high as 120,000 vehicles per day, upgrading was necessary. Johnson, Depp & Quisenberry's section extended from the Western Kentucky Parkway for eleven miles to just south of Rolling Fork River, including the Western Kentucky Parkway Interchange which was relocated to the south of the old interchange. Relocating the interchange required new twin bridges to carry WK Parkway traffic over new I-65. Span lengths for the new bridges were set at 45', 164.7', 164.7' and 56'. Each bridge has a deck width of 51'-3 1/2" and is supported by 6 lines of welded steel plate girders with 80" constant depth webs. The deck is cast-in-place concrete. Composite construction was not in favor at the time and was not used. The two interior spans were continuous with the end spans acting as simple spans due to the high span ratio. The piers are founded on rock and the end bents are supported on steel point bearing piles. The design was completed in 1982 and construction was finished in 1985. The estimated cost of the twin bridges is $2,200,000. The overall construction cost of our 11 mile section was $72,000,000.

The Consultant was responsible for:

1. Providing surveys.

2. All design and construction plans.

3. Specifications and cost estimates.

4. Geotechnical work.