Securing the Cuyahoga: The Engineering Behind Irishtown Bend's Transformation-PPT Presentation

PPT Presentation

Pdf Summary

The Irishtown Bend project addressed a decades-long landslide threatening to close a key stretch of the Cuyahoga River. A channel closure could halt commercial shipping, with an estimated annual economic impact of $7.07 billion and 24,000 jobs at risk.<br /><br />The solution was a 2,200-foot combination bulkhead of driven pipe piles and sheet piles, secured with 203 multi-strand rock anchors. Work also included regrading 107,000 cubic yards, adding a habitat-friendly “green” bulkhead, and protecting and repairing the 60-inch Westerly Low-Level Interceptor sewer, which lay in the slide’s path.<br /><br />Construction took place in a live navigation channel and involved difficult ground conditions, including boulders, timber piles, and buried debris. Crews installed the pipe piles using vibratory methods after dynamic load testing supported eliminating impact driving, helping keep the work on schedule. Anchors were drilled from barges through the obstruction-filled slope, then tested at loads up to 1,210 kips. A dedicated test program established rock-bond design parameters.<br /><br />The project required extensive instrumentation and monitoring, multiple land and marine work fronts, and approximately 80,000 craft hours. The completed wall stabilizes the slope, protects critical infrastructure, and supports continued river navigation.

Keywords

Irishtown Bend

Cuyahoga River

landslide stabilization

bulkhead wall

pipe piles

sheet piles

rock anchors

commercial shipping

slope regrading

live navigation channel