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Highway SR-121 Lane Closures, Road Construction and Blocked Lanes

This page provides details on CalTrans lane closures, road construction, and road closures that are either active or planned for Highway SR-121

CalTrans Lane & Road Closures on Highway SR-121

How does freeway lane numbering work?

In Napa Lane #1 will be closed for guardrail work along North / southbound Highway 121 at Wooden Valley Rd from 8:01AM to 5:01PM.

From: Wooden Valley Rd to Wooden Valley Rd in Napa
Google Maps & Street View
ID: C121GA-0005-2024-06-21-08:01:05

In Sonoma Lane #1, the left shoulder, and the right shoulder will be closed overnight for highway construction along North / southbound Highway 121 at Ramal Rd from Jun 21 at 10:01PM to Jun 22 at 6:59AM.

From: Ramal Rd to Napa Rd/12/121/29 in Sonoma
Google Maps & Street View
ID: C121NA-0001-2024-06-21-22:01:00

In Napa Lane #1, and the right shoulder will be closed for utility work along North / southbound Highway 121 at Sousa Lane from Jun 23 at 3:01AM to Jun 23 at 9:01AM.

From: Sousa Lane to Fairview Dr in Napa
Google Maps & Street View
ID: P121TA-0001-2024-06-23-03:01:00
121

South

Sun
23

In Napa Lane #2, and the right shoulder will be closed overnight for utility work along Southbound Highway 121 at Junction 121 (Soscal Ave) and 121 (Silverado Trail) from Jun 23 at 9:01PM to Jun 24 at 5:01AM.

From: Junction 121 (Soscal Ave) and 121 (Silverado Trail) to Route 221 at Imola Ave in Napa
Google Maps & Street View
ID: P121TA-0004-2024-06-23-21:01:29

In Napa Lane #1 will be closed for guardrail work along North / southbound Highway 121 at Wooden Valley Rd from Jun 24 at 8:01AM to Jun 24 at 5:01PM.

From: Wooden Valley Rd to Wooden Valley Rd in Napa
Google Maps & Street View
ID: C121GA-0001-2024-06-24-08:01:00
121

North

Mon
24

In Napa Lane #1 will be closed overnight for striping operation along Northbound Highway 121 at South Coombs St from Jun 24 at 8:01PM to Jun 25 at 7:59AM.

From: South Coombs St to Gasser Dr in Napa
Google Maps & Street View
ID: C121KA-0001-2024-06-24-20:01:43

In Sonoma Lane #1, the left shoulder, and the right shoulder will be closed overnight for highway construction along North / southbound Highway 121 at Ramal Rd from Jun 24 at 10:01PM to Jun 25 at 5:59AM.

From: Ramal Rd to Napa Rd/12/121/29 in Sonoma
Google Maps & Street View
ID: C121NA-0002-2024-06-24-22:01:00

In Napa Lane #1 will be closed for guardrail work along North / southbound Highway 121 at Wooden Valley Rd from Jun 25 at 8:01AM to Jun 25 at 5:01PM.

From: Wooden Valley Rd to Wooden Valley Rd in Napa
Google Maps & Street View
ID: C121GA-0002-2024-06-25-08:01:00
121

North

Tue
25

In Sonoma Lane #1, and the left shoulder will be closed overnight for pavement work along Northbound Highway 121 from Jun 25 at 7:01PM to Jun 26 at 6:59AM.

From: in Sonoma to in Napa From Napa/ Sonoma County line
Google Maps & Street View
ID: C121OA-0001-2024-06-25-19:01:00
121

North

Tue
25

In Napa Lane #1 will be closed overnight for striping operation along Northbound Highway 121 at South Coombs St from Jun 25 at 8:01PM to Jun 26 at 7:59AM.

From: South Coombs St to Gasser Dr in Napa
Google Maps & Street View
ID: C121KA-0002-2024-06-25-20:01:43

In Sonoma Lane #1, the right shoulder, and the left shoulder will be closed overnight for highway construction along North / southbound Highway 121 at Ramal Rd from Jun 25 at 10:01PM to Jun 26 at 5:59AM.

From: Ramal Rd to Napa Rd/12/121/29 in Sonoma
Google Maps & Street View
ID: C121NA-0003-2024-06-25-22:01:00

In Napa Lane #1 will be closed for guardrail work along North / southbound Highway 121 at Wooden Valley Rd from Jun 26 at 8:01AM to Jun 26 at 5:01PM.

From: Wooden Valley Rd to Wooden Valley Rd in Napa
Google Maps & Street View
ID: C121GA-0003-2024-06-26-08:01:00
121

North

Wed
26

In Sonoma Lane #1, and the left shoulder will be closed overnight for pavement work along Northbound Highway 121 from Jun 26 at 7:01PM to Jun 27 at 6:59AM.

From: in Sonoma to in Napa From Napa/ Sonoma County line
Google Maps & Street View
ID: C121OA-0002-2024-06-26-19:01:00
121

North

Wed
26

In Napa Lane #1 will be closed overnight for striping operation along Northbound Highway 121 at South Coombs St from Jun 26 at 8:01PM to Jun 27 at 7:59AM.

From: South Coombs St to Gasser Dr in Napa
Google Maps & Street View
ID: C121KA-0003-2024-06-26-20:01:43

In Sonoma Lane #1, and the left shoulder will be closed overnight for highway construction along North / southbound Highway 121 at Ramal Rd from Jun 26 at 10:01PM to Jun 27 at 5:59AM.

From: Ramal Rd to Napa Rd/12/121/29 in Sonoma
Google Maps & Street View
ID: C121NA-0004-2024-06-26-22:01:00

In Napa Lane #1 will be closed for guardrail work along North / southbound Highway 121 at Wooden Valley Rd from Jun 27 at 8:01AM to Jun 27 at 5:01PM.

From: Wooden Valley Rd to Wooden Valley Rd in Napa
Google Maps & Street View
ID: C121GA-0004-2024-06-27-08:01:00
121

North

Thu
27

In Sonoma Lane #1, and the left shoulder will be closed overnight for pavement work along Northbound Highway 121 from Jun 27 at 7:01PM to Jun 28 at 6:59AM.

From: in Sonoma to in Napa From Napa/ Sonoma County line
Google Maps & Street View
ID: C121OA-0003-2024-06-27-19:01:00
121

North

Thu
27

In Napa Lane #2, and the right shoulder will be closed overnight for pole repair/replace along Northbound Highway 121 from Jun 27 at 9:01PM to Jun 28 at 5:01AM.

From: Route 221 at Imola Ave to Kansas Ave in Napa
Google Maps & Street View
ID: P121TA-0003-2024-06-27-21:01:00
121

South

Thu
27

In Napa Lane #2, and the right shoulder will be closed overnight for utility work along Southbound Highway 121 at Junction 121 (Soscal Ave) and 121 (Silverado Trail) from Jun 27 at 9:01PM to Jun 28 at 5:01AM.

From: Junction 121 (Soscal Ave) and 121 (Silverado Trail) to Route 221 at Imola Ave in Napa
Google Maps & Street View
ID: P121TA-0008-2024-06-27-21:01:29

In Sonoma Lane #1, the left shoulder, and the right shoulder will be closed overnight for highway construction along North / southbound Highway 121 at Ramal Rd from Jun 27 at 10:01PM to Jun 28 at 5:59AM.

From: Ramal Rd to Napa Rd/12/121/29 in Sonoma
Google Maps & Street View
ID: C121NA-0005-2024-06-27-22:01:00
See all lane closures...