Elk Grove city officials said the Grant Line Road interchange is one of the oldest still in operation on Highway 99.
Features of the new interchange project include:
- A partial cloverleaf with up to eight lanes on Highway 99 with two-lane offramps.
- A six-lane overcrossing that can be expanded to eight lanes.
- Metered onramps with high-occupancy vehicle, or HOV, lanes.
- New sidewalks and bicycle lanes.