On 5 June 2016, the people of Geneva approved by 62.8% an initiative from the centre-right Entente (FDP–Christian Democrats) enshrining in the cantonal constitution the principle of a "lake crossing": a large motorway bypass linking the two shores far downstream of the city, to close the canton's road ring.
The vote was not on a construction credit but on a principle: enshrining it in the constitution was meant to oblige the authorities to pursue and deliver a project debated for decades in Geneva, where the question of crossing the lake and the bay returns regularly to the ballot box.
The campaign pitted a right confident in the promised congestion relief against a left denouncing an "outdated, useless and wasteful" structure, estimated to cost at least 3.8 billion francs. The cantonal government backed the principle; delivery, however, depended largely on the Confederation, as the structure falls under the national road network.
▲ Yes — 62.8% The principle of a lake crossing is now in the Geneva constitution. Clear backing from the right and business circles. | ▼ No — 37.2% The left and Greens fail to block the principle, despite their warnings on cost and usefulness. |
The forces at play
▲ Yes camp (the Entente) • FDP Geneva and Christian Democrats, behind the initiative • Cantonal government backing the principle • Business circles TCS, road associations • Populist right SVP, MCG | ▼ No camp • Socialist Party and the Geneva Greens • Ensemble à Gauche solidaritéS, Labour • Environmental circles cost and impact |
Arguments and verdicts
▲ Arguments FOR (Yes camp) Close the bypass and relieve city congestion ✗~ Not delivered to date. Nearly ten years after the vote, no structure has been built: Geneva traffic has not been relieved by a crossing that stays on paper. The constitutional principle has not, on its own, laid a single metre of road. Source : RTS / Le Temps, 2018–2023 Enshrining the principle will guarantee delivery ✓~ Partly borne out. The constitutional anchor kept the file alive: the Confederation reopened it in February 2023 and listed it in its road planning. Delivery remains distant, however, with federal funding targeted only around 2028–2031. Source : RTS, 23 February 2023 | ▼ Arguments AGAINST (No camp) An "outdated, useless and wasteful" project « an outdated, useless and wasteful project » ✓~ Confirmed on cost and timing. The estimate rose from about 3.8 billion to nearly 4.8 billion francs, and almost ten years on the works have still not begun. The "useless" verdict stays political, but the delay and cost drift lend weight to the opponents. Source : Geneva left, quoted by Le Courrier / TdG, 2016–2018 A major financial risk for Geneva ✓~ Partly proven. The estimated cost climbed to 4.775 billion. Most funding now falls to the Confederation (national road), shifting part of the cantonal risk but confirming the scale of the feared bill. Source : Le Temps, 2023 |
The verdict, nearly ten years on
The 2016 vote enshrined a symbol rather than a building site. The crossing stayed on paper for years before Bern reopened the file in 2023 — without any works being launched.
62.8% yes to the crossing principle | ~4.8 bn cost now estimated (vs 3.8 announced) | 2023 the Confederation reopens the file | 0 structures built to date |
The 2016 landslide is a Geneva classic: a people that says yes to congestion-easing infrastructure, but a project that then runs into its own financial and federal complexity. Enshrining a principle in the constitution does not build a bridge; it mainly creates a political duty not to bury it.
With nearly ten years' hindsight, the opponents were partly right on cost and timing: the bill swelled from 3.8 to 4.8 billion and no works began. But the Yes camp did not lose everything: the anchor prevented outright abandonment, and the Confederation reopened the file in 2023.
The crossing's fate will now be decided in Bern, in the national-road funding programmes. Geneva voted a course; it still has to convince the Confederation to foot the bill.