The project will add one new mixed-flow lane on SR-91 in the westbound direction from the Artesia Boulevard on-ramp to the I-605 Connector ramp, This would create a three lane exit from westbound SR-91 to I-605: a one lane I-605 southbound connector, and a two lane I-605 northbound connector. MA Engineering is leading the utility research, assessment, identification, impact analysis and plan development.