A contractor’s value-engineering suggestion shaved $2 million off Idaho’s first single-point urban interchange (SPUI), now nearing completion over Interstate 84 near the Boise airport.
Designer Stanley Consultants, Meridian, Idaho, recommended a SPUI instead of a diamond interchange because it requires less land, moves traffic more quickly and permits wider sidewalks and new bike lanes, says Bob Jacobs, Stanley’s chief transportation engineer. The smaller footprint saved $600,000 by eliminating the need to acquire two buildings.