The Tulsa.

The Tulsa, Okla., State Highway Commissioner had a enveloped interest in the 44th Avenue West street-widening throw out Because he regularly drove the course he took a personal interest in making positive the project was done right.

The intend involved a 34-foot-wide cut to accommodate a propos 26-foot-wide road, as well as retaining-walls gutters and sidewalks. But a 12-foot-high earth berm helped deaden traffic noise for residents living near the road. Improvements would have left a 1:1 oblique direction on the berm down to the designed public way profile grade.

Traditionally, a poured-in-place solid retaining wall would have been designed to provide hillside erosion regulate However, Mike Case, commissioner of OKDOT's District 8 supplicationed that a segmental unit retaining wall be considered as a viable alternative.

The city's engineering department agreed, ultimately opting for a soil reinforced Versa-Lok retaining wall theory ...