“If we are serious about reducing real‑world costs for families on both sides of the Lough, the honest choice is to stop paying for the same fuel‑sensitive ferry again and again—and start owning a bridge that can pay for itself”

A fuel‑hungry ferry gets more expensive every time oil and operating costs spike, while a tolled bridge is paid for once and then largely insulated from volatile energy prices. Over 5, 20 and 50 years, that difference compounds into very large savings in fares, fuel, taxes and time for voters on both sides of Strangford Lough.

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1. Why volatile oil prices matter for Strangford

• The Strangford ferry is energy‑intensive: it needs fuel (or electricity), crew, regular maintenance and eventually replacement vessels and slipway works.
• Recent fare decisions already reflect this: car fares have risen from £5.80 to £7.70 since 2023, with further increases signalled as running costs climb.
• When those costs rise, taxpayers pay twice: once at the pump or ticket machine, and again via higher subsidies taken from general budgets.

A fixed bridge with tolls flips this logic: you pay up‑front to build it, then rely mainly on modest, predictable maintenance and user tolls, which are far less sensitive to future oil shocks.

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2. Short term (first 5 years): stabilising everyday costs

In the first 5 years, the ferry can look cheaper because the bridge has a big up‑front price tag, but volatile oil already bites.

1. Fare rises vs a fixed toll path
   DfI has already moved from a frozen fare regime (2009–2023) to steep catch‑up rises, with more signalled. A bridge with a published toll schedule avoids repeated emergency increases and lets households plan.
2. High and rising subsidy vs user‑pays
   The ferry currently costs about £3.52m per year to run, with only £1.43m in income and a £2.09m subsidy from the Executive. As fuel and wages rise, that subsidy line grows, squeezing other spending; a tolled bridge shifts much of the cost to users who actually cross, reducing this pressure.
3. Avoided cuts to other services
   Because subsidy is paid from the same pot as roads, buses and local services, protecting the ferry in a high‑cost world means cutting something else. A self‑financing bridge lets governments protect those other services.
4. Door‑to‑door savings even with similar tolls
   Modelling shows that with tolls around today’s ferry fares, higher usage still generates strong net revenue while users avoid the 47‑mile detour when the ferry is unavailable. That means less fuel, less time, and lower total trip cost for many voters.
5. Lower household motoring costs
   Every long diversion avoided is fuel, tyres and servicing not bought; replacing occasional 47‑mile trips with a 1–2‑mile crossing trims day‑to‑day motoring bills.
6. No “closure shock” costs
   A recent slipway closure cost about £300k in direct works plus weeks of disruption. In a world of volatile oil prices that could become more frequent and expensive; a bridge removes this entire class of risk.
7. Predictable commuting budgets
   Commuters currently juggle variable fares, cancellations and diversions; a fixed route with known tolls makes weekly budgeting easier, especially for lower‑income households.
8. Immediate gains for local businesses
   Suppliers and tradespeople lose money in queues, missed sailings and detours; a short, always‑open bridge cuts driver hours and fuel, making local business more resilient to energy‑cost spikes and helping hold down prices.

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3. Medium term (first 20 years): structural savings and resilience

Over 20 years, the structural weaknesses of a fuel‑exposed ferry system become much clearer than in year 5.

9. Operating cost paths diverge
   Official work shows ferry operating and subsidy costs rising steadily, while a bridge’s operations and maintenance stay around £1.25m–£1.5m per year in real terms. Each oil spike pushes the ferry higher; the bridge largely stays on its flat path.
10. Avoided vessel renewals and refits
    Within 20 years, at least one new vessel or major refit is likely, at a capital cost in the tens of millions. Those costs are themselves sensitive to energy and materials prices; the bridge simply avoids them.
11. Electric ferry still an expensive energy asset
    Electrifying the ferry may reduce direct fuel burn, but 60‑year net operating costs for an electric ferry system still come out very high once capital, energy and maintenance are included. A tolled bridge has a much lower net cost over the same horizon.​
12. Slower user‑cost inflation
    After years of frozen fares, recent rises have been steep; repeating that pattern every decade as costs catch up is politically and socially painful. A bridge lets pricing focus on maintaining the asset and repaying capital, not on chasing energy inflation.
13. Healthier cross‑Lough labour market
    Better, cheaper access widens people’s practical job search radius. In a high‑cost energy world, being able to take a job across the Lough without prohibitive travel cost helps households maintain income and reduces dependency.
14. Tourism without the ferry premium
    Tourism benefits over 30 years are projected to be substantial. Visitors can make short trips across the Lough without paying a “fuel plus ferry” premium each time, which supports local businesses even when fuel is expensive.
15. Efficient logistics and food supply
    Shorter routes mean fewer driver hours and less empty running for hauliers. That helps keep delivery surcharges and food prices lower than they would otherwise be when fuel costs are high.
16. Falling average cost per crossing
    Economic assessments show high benefit–cost ratios (well above 2:1) because each additional crossing on a bridge costs little to serve, whereas every extra ferry sailing burns fuel and uses crew time.
17. Budget certainty for government
    A tolled bridge structured on a utility‑style model, similar to arrangements on the Tamar Bridge, has predictable net cash flows. That makes 10–20‑year planning for roads and services much easier than with an open‑ended, fuel‑sensitive ferry subsidy.
18. Using toll surpluses to cut wider transport costs
    By around year 20, projections show net toll revenues in the many millions per year. Some of this can be reinvested in buses, park‑and‑ride and active travel, giving households cheaper, lower‑energy alternatives to driving.

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4. Long term (50 years): ferry liability vs bridge asset

Across a 50‑year horizon in volatile oil markets, the difference between “perpetual ferry” and “tolled bridge” becomes stark.

19. Total public cost: ferry much higher
    Ferry continuation is estimated at roughly £200m–£230m over 50 years once you add subsidies, renewals and replacements. The bridge, by contrast, has net toll income of several hundred million pounds against only about £60m of operating cost over the same period.
20. User savings outpace initial investment
    A 60‑year appraisal finds about £190m of discounted benefits for about £130m of capital and maintenance. In other words, savings in time, fuel and vehicle wear accumulated by users more than repay the build cost.​
21. Option to reduce or remove tolls
    Thirty‑year analyses show tolls can recover most or all of the capital cost. After that point, tolls could be cut to maintenance‑only levels or abolished, leaving future generations with near‑free crossings and only minimal, oil‑insensitive upkeep.
22. Permanent cut in detour mileage and road wear
    Eliminating thousands of 47‑mile detours over five decades reduces regional road wear and associated maintenance bills that the public would otherwise fund. This matters more as resurfacing and construction costs also track global energy prices.
23. Lower cumulative tax burden
    Medium‑term comparisons already show a fixed link with co‑funding yields a markedly better net financial position than keeping the ferry. Extended to 50 years, the tax saved from not funding an ever‑increasing, energy‑driven subsidy becomes very large.
24. More resilient communities across multiple cycles
    Across several economic and political cycles, a high‑capacity, always‑open link makes it easier to retain population, attract investment and maintain services without repeated, crisis‑driven fare and tax hikes.
25. Strategic freedom for future governments
    A tolled bridge is a long‑life, revenue‑generating asset; a ferry is a recurring liability whose cost grows every time energy markets turn. Choosing the bridge now gives future executives more fiscal space for health, education and climate action instead of re‑opening the “how do we pay for the ferry this year?” question.

Conclusion

A fuel‑hungry ferry will only get more expensive; a tolled bridge is built once and then steadily pays itself back. In today’s world of volatile oil prices, keeping the Strangford ferry means higher fares, higher subsidies and deeper cuts elsewhere every time costs spike. A tolled bridge turns that around: it gives both shores a permanent, reliable link, stabilises household and business costs, and over time can even allow tolls to fall rather than rise.

For voters, that means cheaper, more predictable travel over a lifetime; for politicians, it means swapping an open‑ended liability for a long‑life asset that strengthens the local economy instead of draining it. If we are serious about reducing real‑world costs for families on both sides of the Lough, the honest choice is to stop paying for the same fuel‑sensitive ferry again and again—and start owning a bridge that can pay for itself.