Oakley C. Collins Memorial Bridge. Ohio / Kentucky


Owner

Ohio Department of Transportation

Client

Brayman Construction Corporation

Services Provided by FINLEY

  • Construction Engineering
  • Geometry Control
  • Falsework Design
  • Value Engineering Design Modification
  • Technical Support during Construction
  • Construction Sequence Casting the Back Span on Falsework
  • Falsework System Supports All Construction Equipment for Pylons and Deck
  • Precast Stay Anchor Block System

Cost

$81.3 million

Start Date

March 2012

Completion date

November 2016

World Highways

New bridge link under construction in Ohio | World Highways, June 22, 2012


Project Website


Specifications & Details


Specifications & Details (76 KB)

Dixie Contractor Industry News, September 2012


Ironton-Russell Bridge between Parksburg Kentucky and Cincinnati Ohio (183 KB)

ASBI Segments Fall 2013


Diamond in the Sky – First of Two Ironton-Russell Bridge Towers Nearing Completion (201 KB)

ASBI Segments, Fall 2014


Perseverance and Innovation: Lessons from Ohio's Ironton-Russell Bridge Replacement Project

TransportationBuilder, March/April 2016


A Snapshot of U.S. Transportation Improvement Projects (310 KB)

TransportationBuilder, March/April 2017

The Ironton-Russell Bridge opened in 1922 as the first highway bridge along the Ohio River between Parkersburg and Cincinnati. The existing bridge exceeded its useful life span and thus needed to be replaced. The new 2,616 ft.-long Oakley C. Collins Memorial Bridge is comprised of a 900 ft. cable-stayed main span and two 370 ft. cable-stayed side spans, two 326 ft. tall towers, and two anchor piers on the river’s edge. The structure is cast-in-place with 22,500 cy of reinforced concrete (5.8 million pounds of rebar), utilizing the cable stays to construct the bridge with the one-directional cantilever method. Foundation units consist of 22 large-diameter drilled shafts, measuring 96 inches. The 900 ft. main span is the longest span the Ohio Department of Transportation has ever built.

There were several key modifications to the means, methods, and design optimizations, most notably:

  • Alternative construction sequence
  • Casting of the back spans in place using specially designed falsework
  • Land access to build the main span area
  • Precast concrete girders for floor beams on side spans
  • Precast stay anchor blocks

FINLEY provided pre-bid value engineering services which included the development of a construction sequence that cast the back spans on falsework. This sequence resulted in a savings of time, simplified construction, and reduced the equipment required for the cable-stayed portion of the project. To minimize the requirements for marine operations and create a safer work environment, FINLEY incorporated the ability to support all construction equipment required for the pylons and deck into the falsework system. FINLEY’s innovative precast stay anchor block system design simplified stay cable anchorage placement, accelerated segment construction, and simplied the form traveler system by eliminating the need for a temporary stay anchorage. Other design optimizations included precast transverse beams and stay-in-place forms. The design optimization and changes to the construction method resulted in a winning bid approximately 4% below the state’s final estimate of $84.6 million.

One thought on “Oakley C. Collins Memorial Bridge. Ohio / Kentucky”

  1. Lou H. Tran, P.E. WSDOT July 6, 2016 at 3:38 pm

    I would like to have some information about this beautiful design – set of plans would be appreciated.

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