SLOPE STABILIZATION OF US-189MaQuiGr Engineering

Matthew Hakes, Quinton Taylor, Greg Hanks

Problem:• There are two segments of

lake-side slopes that have eroded and are now undermining the highway

• Construction restraints include: steep slopes and maintaining the flow of traffic

Approach:• Examine possible earth

retaining systems for both segments

• Evaluate them according to constructability, cost, and design life

Solution:• Design a soil nail retention system that will

span over the two segments and prevent further undermining of US-189

• Design requires minimal labor from the slope and is cost effective