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I-5 + SR 161/SR 18 Interchange Improvements, Federal Way, WA

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At the interchange between I-5 on

two other local state routes, 18 and

161, the project focused on rerouting connections with new overpasses and corresponding demolition and installation of a variety of landscape features.  A study of the site’s existing and proposed functions generated a list of issues including the need to clear vegetation, accommodate a creek through two of the cloverleaves, retain stormwater onsite, maintain safe viewing corridors and provide beautiful plantings for drivers.  A later phase of work put these findings into physical form, designing an interchange with solutions for grading and drainage, detention ponds locations, and visual clarity for drivers.  With JA Brennan.

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derek f. hevel

landscape architect

320 summit ave e, #18

seattle, wa  98102