Drivers heading into or out of Split at the start of June have a few practical checks worth making before they leave. According to the Croatian Automobile Club (HAK), the northbound A1 approach from the Split side is still affected by the Bisko to Split works, the Klis Grlo to Solin section remains narrowed on 1 June, and the Stupica tunnel toward Vrgorac is closed because of rock sliding. For 2 June, HAK also warns that roads in the interior will be wet and slippery, with possible flooding in the west of the country and rockfall risk in mountain areas and along parts of the DC8 Adriatic road. DHMZ says a trough with a frontal system is moving slowly across the Adriatic to the east, which fits the more unsettled road picture.
Before you drive: open the live HAK traffic report and, if you are using the motorway, the HAC highway conditions page again just before departure. This is a week for live checks, not assumptions.
What is affecting the main Split approach
The biggest continuing issue is the A1 closure between the Bisko and Split junctions in the Zagreb direction until 12 June. HAK says the official detour runs via the Bisko exit, DC220, county roads and DC1 toward Dugopolje and Split. It also notes that entry to the A1 in the Zagreb direction is possible at Dugopolje, but not at Bisko, and that jams should be expected at the Bisko and Split toll points.
For travelers, that matters less as a dramatic headline and more as a timing trap. If you are leaving Split after a city stay, returning a rental car, or linking the coast with inland central Dalmatia, this is exactly the sort of work zone that can quietly stretch a travel day if you do not recheck it on the day.
HAK is also still listing one lane only in each direction on the Klis Grlo to Solin section on 1 June. That corridor is one of the key road gateways for anyone combining Split with Klis, Solin, the inland side of the county, or onward A1 access.
One more southbound wrinkle: the Stupica tunnel toward Vrgorac
Separate from the Split gateway, HAK says traffic is suspended at the Stupica tunnel toward Vrgorac because of rock sliding. That will not affect every central Dalmatia itinerary, but it does matter for drivers using inland southern routes rather than staying only on the immediate Split coast.
If your plan includes Makarska hinterland stops, Biokovo-side detours, or a longer southbound drive that depends on smaller inland links, this is worth checking before you commit to the route. HAK is also clear that ferry traffic currently has no wider operational difficulties, so this is much more of a road-planning issue than a broader coastal transport breakdown.
What to recheck on 1 and 2 June
Corridor or issue | Official status | Why it matters | Best move |
|---|---|---|---|
A1 Bisko-Split toward Zagreb | Closed until 12 June with detour via DC220 and DC1 | Northbound departures from the Split area can take longer than expected | Check HAK live, use Dugopolje for Zagreb-bound A1 entry if needed, and leave time for toll-area queues |
Klis Grlo-Solin | One lane in each direction on 1 June | Slows a key approach between Split, Klis, Solin and inland routes | Do not build a tight airport, ferry or check-in connection through this corridor |
Stupica tunnel toward Vrgorac | Closed because of rock sliding | Affects some inland southbound route choices | Recheck the live route before leaving and avoid relying on an old map assumption |
2 June wider road conditions | HAK warns of wet and slippery roads, possible flooding in the west and rockfall risk on mountain roads and parts of DC8 | Adds friction even where roads are technically open | Drive with more buffer time, especially if your day includes long road segments or fixed arrival times |
What this means for travelers
This is not a reason to avoid Split or central Dalmatia. It is a reason to plan a cleaner road day. If you are driving this week, the smart version is simple: check HAK again right before departure, treat the Split gateway and inland southbound routes as separate risk points, and avoid chaining a motorway departure, apartment check-in and fixed ferry or flight connection too tightly.
In short, central Dalmatia is fully visitable, but not especially forgiving of lazy route planning on 1 and 2 June.