How Sacramento's freeways connect

Why the junctions matter

Sacramento's rivers limit where roads can cross, so traffic funnels onto a few bridges and through a few large interchanges. Missing an exit near the river can mean a long loop back. The upside is that the layout is simple once you know the handful of places where routes meet.

The I-80 and US 50 split in West Sacramento

Coming from Davis and the Bay Area on I-80, the freeway divides in West Sacramento. US 50 continues east across the Sacramento River toward downtown, while I-80 bends north to bypass the city. Going downtown, to midtown or toward Folsom and South Lake Tahoe, you want US 50. Going to Natomas, the airport via I-5, Roseville or Reno, you want I-80.

Signs for the split appear well before it. Pick your lane while you still have room, and if you miss it, both routes have later connections back to the other one.

I-5 and US 50 at the south edge of downtown

After crossing the river, US 50 meets I-5 almost at once. This is the place to switch for Old Sacramento and the riverfront (I-5 north) or for the Pocket area and Elk Grove (I-5 south). Exits come close together here, so the lane you choose on the bridge matters.

US 50, Highway 99 and Business 80 east of downtown

East of downtown, three routes meet in one large interchange. US 50 carries on east. Highway 99 heads south toward Elk Grove and Stockton. Business 80 heads north across the American River toward the northeast suburbs and I-80. Each direction has its own set of lanes, and some ramps leave from the left. Watch the overhead signs a mile or more ahead.

I-5 and I-80 in Natomas

North of downtown, I-5 and I-80 cross in Natomas. This is the link between the airport, the Bay Area and the northeast side. A little farther north on I-5, Highway 99 splits off toward Yuba City.

Business 80 and I-80 northeast of the city

Business 80 rejoins I-80 on the northeast side. From there, I-80 heads toward Roseville, Auburn and Reno. Traffic coming from downtown and from the I-5 side merges here, so expect lane changes around the junction.

Lane habits that help

1. Know your next two moves. Before you set out, note the route numbers and the city names on the signs you need. Junctions come in pairs here, like the US 50 and I-5 links just after the bridge.
2. Move over early. Get into your lane at the first overhead sign, not the last.
3. Watch for left exits. Several ramps leave from the left side. The overhead sign will say so.
4. Miss it safely. Never stop or back up on a freeway or ramp. Take the next exit and turn around.
5. Mind the merges. Where ramps join, let merging traffic in and keep a steady speed.

Carpool lanes on some Sacramento freeways are limited to vehicles that meet the posted occupancy rules during posted hours. Read the diamond-lane signs for the hours and rules where you are, since they are not the same on every road.

Junction questions