Caltrans has scheduled closures of the westbound Interstate 80 ramps at Tennessee Street in Vallejo, according to the state's lane-closure schedule. The off-ramp is listed to close Friday, October 16, from 10 a.m. to 3 p.m. for electrical work. Both westbound ramps then have daytime and overnight closures from Monday, October 19, to the early hours of Saturday, October 24.
Which ramps
- **Westbound off-ramp:** the exit from westbound I-80 onto Tennessee Street. Caltrans lists it fully closed during each window for electrical work.
- **Westbound on-ramp:** the entrance from Tennessee Street onto westbound I-80. Caltrans lists it fully closed during separate windows for installing K-rail, a concrete traffic barrier.
Off-ramp closures
All times are Pacific.
- **Friday, October 16:** 10 a.m. to 3 p.m.
- **Monday, October 19, to Friday, October 23:** 10 a.m. to 3 p.m. each day, then 9 p.m. to 5 a.m. the next morning
On-ramp closures
- **Monday, October 19, to Friday, October 23:** 9 a.m. to 3 p.m. each day, then 7 p.m. to 5 a.m. the next morning
The last overnight closures of both ramps end at 5 a.m. on Saturday, October 24. These are separate windows, not one week-long closure. For parts of each weekday that week, both westbound ramps are listed as closed at the same time.
Tennessee Street
From October 19 to 23, the schedule also lists one lane and the right shoulder of Tennessee Street closed from 10 a.m. to 3 p.m. The work zone runs from Mariposa Street to the end of the westbound off-ramp.
Before you drive
These are planned windows that Caltrans has approved in its lane-closure system. They can change or be canceled. Caltrans changed this schedule at least once on October 15, removing two overnight off-ramp closures. A listed window does not show that the work took place. The schedule does not list a detour. Check Caltrans' lane-closure schedule at lcsreports.dot.ca.gov, or QuickMap at quickmap.dot.ca.gov, on the day you travel.
What we don't know
The schedule gives the type of work but not the larger project it belongs to. We will check whether the closures went ahead.
How we know (1 source)
Dated source evidence; the project may have changed since then. An approval does not establish construction or an opening.
Summary
Caltrans District 4 LCS report, retrieved 2026-10-15 16:06:19 UTC. All rows Approved, Route 80 westbound unless noted. Tennessee Street off-ramp, full closure, Electrical Work (C80MB): Oct 16 10:01-14:59 (log 5); Oct 19-23 10:01-14:59 (logs 2, 3, 4, 5, 6); overnight 21:01-04:59 starting Oct 19, 20, 21, 22, 23 (logs 7, 8, 9, 10, 1). Tennessee Street on-ramp, full closure, K-rail Installation (C80QB): Oct 19-23 09:01-15:01 (logs 17, 18, 19, 20, 21); overnight 19:01-05:01 starting Oct 19, 20, 21, 22, 23 (logs 5, 6, 7, 8, 2). Tennessee Street surface street, Mariposa Street to WB off-ramp terminal, lane #2 and right shoulder, Electrical Work, direction N/A: Oct 19-23 10:01-14:59 (C80MB logs 11-15). Compared with the 15:24 UTC capture, the rows for Oct 15 19:01 to Oct 16 04:59 (then C80MB log 9) and Oct 16 19:01 to Oct 17 04:59 (then C80MB log 1) no longer appear. Log numbers repeat across dates, so match rows by job, log and start time. Approved is a scheduled-plan status; it does not show a closure occurred.
Lane Closure System report, District 4Caltrans · Route 80 rows at Tennessee Street (C80MB and C80QB series)
Evidence dated: Oct 15, 2026 · Source checked: Oct 15, 2026
Owner-authorized agent review (issue #145). Rechecked on the owner's machine at 16:06 UTC October 15 (capture 20261015T160619Z-lcs-recheck). Approved LCS status is a scheduled plan; no closure, completion or reopening is asserted. Manual pre-event and outcome checks recorded in docs/highway-publishing-pass-2026-10-15.md; no automatic monitor enabled. Wording edit October 15 (issue #145): added a line pointing readers to the Caltrans lane-closure schedule; no new factual claim beyond the October 15 schedule change already shown by the two captures.
