TxDOT’s 635 East project: July 2026 I-635 HOV lane & ramp closures

Dallas commuters using I-635—especially the I-635/I-30 area—should plan for recurring overnight restrictions as TxDOT’s 635 East Project work continues into fall 2026. TxDOT also warns its scheduled closures can change due to weather and other unforeseen circumstances, so the best commute plan is checking the live closures page for your exact date and movement before you drive.

What TxDOT says is being restricted (baseline closures through fall 2026)

TxDOT says construction will occur 24 hours a day, seven days a week, but major lane closures are done overnight and on weekends. During the construction phase, TxDOT also says the TEXpress lanes between US 75 and I-30 are closed (and access/routing changes depend on where you’re coming from).

On its live closures page, TxDOT lists these key major items through Fall 2026:

• I-30 HOV lane entrances closed: Eastbound entrance at Jim Miller Road and westbound entrance at Northwest Drive.
• I-635 HOV/managed toll lanes closed (both directions): between US 75 and I-30. TxDOT’s detour column for this major restriction says “No detour required.”

TxDOT also includes a specific routing note for eastbound TEXpress users: drivers traveling eastbound on the TEXpress Lanes from I-35E to US 75 must exit onto the I-635 mainlanes after US 75.

July 2026 overnight windows: when ramp/connector impacts can change your route

TxDOT’s live closures page lists multiple overnight windows in July 2026 that affect ramp/connector access (and, at times, mainlanes/roadway segments). The practical takeaway: even if some movements don’t require a detour, your best route can still change if the specific entry/exit or connector you use is fully closed.

• July 6–12, 2026: TxDOT lists overnight work windows for corridor ramp/frontage/city-street related closures including times such as 9 p.m. to 5 a.m. (and some items 8 p.m. to 5 a.m. the next day).
• July 8–9, 2026: For direct connectors at/near the I-635/I-30 area, TxDOT lists full closure windows anytime between 8 p.m. and 5 a.m. Drivers are directed to follow provided detour signs for those connector movements.
• July 9–10, 2026: TxDOT’s 9 p.m. to 5 a.m. overnight window is listed as running July 7–10 (so the July 9–10 overnight is included). Also, TxDOT lists direct connector full-closure windows 8 p.m. to 5 a.m. with follow provided detour signs instructions.
• July 10–12, 2026: TxDOT lists mainlane impacts with overnight timing such as 9 p.m. to 5 a.m. (and other corridor work continues under an 8 p.m. to 5 a.m. window that runs through July 12).

Does your I-635↔I-30 trip change overnight?

Because the July work includes both lane impacts and ramp/connector closures, the commute effect depends on how you move through the interchange. Use TxDOT’s page like a checklist:

1. Go to TxDOT’s live 635 East closures page.
2. Find the row that matches your direction and your movement (for example, the connector/entrance/exit you typically use near I-635 and I-30).
3. Confirm your date range and the listed overnight time window (TxDOT repeatedly uses “anytime between” evening-to-morning hours).
4. Pay close attention to the Detour column:
   • Some major lane restrictions show “No detour required”.
   • Other ramp/connector or direct-connector closures instruct drivers to follow provided detour signs.

How to plan right now (before you drive)

For the most reliable, movement-specific answer for an overnight commute, check TxDOT’s live closures page again on the day you’re traveling and verify your exact movement at/near the I-635/I-30 interchange. TxDOT explicitly notes scheduled closures are subject to changing conditions.

Bottom line: the I-635 HOV/managed-toll lane shutdowns are slated to continue through fall 2026, and July 2026 overnight work—including direct connector full closures—can still force different route choices depending on your entry/exit.

Sources

• TxDOT 635 East closures (live updates)