980

880

880

580238

101

101

101

101

101

101

505

80

780

580580

205680

280

280

580

680

80

80

29

29

29

121

121

37

24

37

12

12

12

12

113

116

13

4

859

35

130

87

237

82

1

25

152152

17

35

92

23892

84

84

84

4

4

1

116

128

128

128

116

1

6

3

7

5

8

4

2

1

9

10

VacavilleVacavilleVacavilleVacaville

Pleasanton

Fremont

PaloAltoPaloAlto

LosGatosLosGatos

SanRafael

Novato RioVista

Livermore

Brentwood

Antioch

WalnutCreek

Concord

Pleasanton

Fremont

Morgan Hill

SanJose

HalfMoonBay

San Francisco

SanMateo

Hayward

Oakland

Richmond

Vallejo

Fairfield

Napa

St. Helena

Healdsburg

Petaluma

SantaRosa

Rank of segment in top 10 congestedlocations (1 is mostcongested)

Congested segment with direction of travel

Urbanized Area

10 Rank of segment in top 10 congestedlocations (1 is mostcongested)

Congested segment with direction of travel

Urbanized Area

10

MTC

Gra

phic

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— 7

.12.

2017

Bay Area Freeway Locations with Most Weekday Traffi c Congestion, 2016

Bay Area Freeway Locations With Most Delay During Commute Hours, 2016

2016 Rank Location

2016 Daily (Weekday) Vehicle

Hours of Delay 2015 Rank*

●1U.S. Route 101, northbound/Interstate 80, eastbound, p.m. — San Francisco County Interstate 280 to Treasure Island Tunnel

14,120 1

●2Interstate 80, westbound, all day — Alameda, Contra Costa & San Francisco counties SR-4 to Fremont Street

13,600 2

●3U.S. Route 101, southbound, p.m. — Santa Clara CountyShoreline Boulevard to Oakland Road

8,290 3

●4Interstate 680, northbound, p.m. — Alameda County Mission Boulevard/SR-262 to Andrade Road

7,310 6

●5Interstate 880, northbound, p.m. — Alameda CountyMowry Avenue to Winton Avenue

7,170 8

●6Interstate 280, southbound, p.m. — Santa Clara CountyFoothill Expressway to 7th/10th/Virginia Street

6,360 12

●7Interstate 80, eastbound, p.m. — Alameda County West Grand Avenue to Gilman Street

6,050 4

●8Interstate 680, northbound, p.m. — Contra Costa CountyCrow Canyon Road to Contra Costa Boulevard

5,950 11

●9State Route 24, eastbound, p.m. — Alameda and Contra Costa counties Interstate 580/Interstate 980 to Interstate 680

5,550 10

●10State Route 4, eastbound, p.m. — Contra Costa County Morello Avenue to Port Chicago Highway 4,920 16

Source: Metropolitan Transportation Commission

Rankings are for routes in which continuous stop-and-go conditions occur with few, if any, breaks in the queue. Thus, corridors that have equally severe delays but where congestion is broken into several segments may rank lower in this type of congestion listing. Similarly, the length of congested corridors in 2016 may be longer or shorter than those identi� ed in the 2015 report.

*2015 rankings have been updated to correct an error in data originally reported for the I-680/I-280 corridor in Santa Clara County.

vitalsigns.mtc.ca.gov

Taking the Pulse of the Bay Area