For a shipbuilding city, Glasgow was remarkably hard to cross. Downstream of the last bridge the working river could not be spanned — masts and hulls needed the air — so generations crossed by the corporation’s ferries: passenger skiffs and, for carts and lorries, the strange tall vehicular ferries whose decks rose and fell with the tide. By the motor age the queues at Govan and Whiteinch had become a civic joke with an economic cost, and in the 1950s the city resolved on a tunnel.
The Clyde Tunnel was driven between Whiteinch on the north bank and the Govan–Linthouse shore on the south: twin bores, one for each direction, each carrying two traffic lanes with a separate deck below for cyclists and pedestrians — a courtesy to the non-motorised that the era’s road-building rarely showed. The first tube opened in 1963, its twin in 1964, and the ferries’ long story ended within the decade.
The digging exacted a price the opening speeches undersold. To hold back the waterlogged ground the workings were pressurised, and the miners worked in compressed air, passing through locks to enter and leave; decompression sickness — the bends, the same enemy the harbour tunnel’s builders had met seventy years before — struck the workforce repeatedly, leaving men with damaged joints and worse, and the project cost lives among its builders. The tunnel’s traffic passes daily over that debt, mostly unknowing; this page is partly for the record.
Like the Kingston Bridge after it, the tunnel was promptly loaded beyond its designers’ dreams — engineered around a modest daily forecast, it came to carry several times that, its narrow bores and tight approaches breeding a distinctive white-knuckle intimacy that every Glasgow driver knows — and it has needed periodic deep refurbishment to keep its 1960s systems fit for the load.
It remains the only road crossing of its stretch of river, the shipyard cranes’ neighbours passing beneath where hulls once launched above — and, with its walkway tubes echoing below the carriageways, one of the odder pedestrian experiences the city offers: the chance to walk under the Clyde, in the path the ferrymen lost.