Tappan Zee Bridge

Listen first. Out over the water there is a low, steady hum. It is the sound of tyres on a long deck, thousands of them, rolling between two shores. Up close, the air off the Hudson smells faintly of salt and river mud. The wind comes hard across this stretch of water, even on calm days in town. Ahead of you, white cable stays rise in long fans toward pale towers. This is where the river opens wide, and where people have tried for a very long time to cross it.

Start with the name, because it holds a small surprise. Tappan refers to the Tappan people, a Native American group who lived on the western shore of this river before European settlement. Zee is a Dutch word. It means sea. Dutch sailors in the seventeenth century looked at this stretch of the Hudson and saw something closer to an inland sea than a river. Standing here, you can see why. The far shore at Tarrytown looks distant, and the water spreads out like a wide, grey lake.

That width is the heart of the story. This is one of the broadest points on the whole Hudson, roughly three miles from bank to bank. For centuries, crossing here meant a boat. Ferries carried people and goods between Rockland County on this side and Westchester County on the other. For anyone in an engineering office, this was close to the worst possible place for a bridge. So why build one here at all? The answer is a mix of politics, money and geography.

In the years after the Second World War, New York State was building the Thruway, a long toll highway to connect the state. It needed a Hudson crossing north of New York City. One explanation, often repeated in histories of the bridge, is about jurisdiction. The Port Authority controlled river crossings within a certain distance of the city. A bridge placed just beyond that zone would stay under state control, along with its tolls. This wide stretch of river sat just outside the line.

The first Tappan Zee Bridge opened in 1955. It was a steel cantilever bridge, a design where long arms of steel reach out from piers and meet in the middle. Much of its length rested on low supports close to the water, so it rose in a gentle hump over the shipping channel. It was built at a time of tight budgets and scarce materials. Accounts often say it was designed to last about fifty years. That turned out to be close to the truth.

Here is something most drivers never knew. Parts of the old bridge did not rest on solid rock. The riverbed here holds deep layers of soft sediment, and bedrock lies far below. Engineers used hollow concrete supports, sometimes described as buoyant caissons, which help to carry the weight of the structure. In plain terms, part of the bridge was partly supported by the water itself. It was a clever, economical solution. It also meant constant care, and the bill for repairs grew heavier every decade.

For South Nyack, the bridge brought a deep change. This was a small village of quiet streets and old houses along the river. The Thruway and its approach roads cut straight through it. Homes and properties were taken to make room for the highway. Local historians still talk about how the village was divided. As you walk the streets near the bridge landing, notice how the older houses sit close to the large concrete roadways. Two very different scales of life meet here.

By the early twenty-first century, the old bridge was carrying far more traffic than its builders had planned. Lanes were narrow. There were no shoulders for broken-down cars. Repairs were frequent and expensive. After years of debate, the state chose to build a replacement rather than keep patching the old structure. The new crossing went up right beside the old one. For a time, river traffic passed two bridges at once, the old steel arms next to the new white towers.

The replacement is a twin cable-stayed bridge. In this design, tall towers carry the deck with straight steel cables that run down at an angle, like the strings of a harp. The first span opened in 2017 and the second in 2018. Officially, it is named the Governor Mario M. Cuomo Bridge, after a former governor of New York. The name change was controversial. Many people in the region still simply call it the Tappan Zee, and you will hear both names around town.

Look up at the towers, and you may notice a second surprise. They do not stand perfectly straight. Each tower leans slightly outward, away from the centre of the twin spans. The angle is small, but once you see it, it is hard to miss. The design gives the bridge a sense of openness from the water and from the shore. At night, the cables and towers are lit, and the whole structure glows over the dark river.

And what happened to the old bridge? It came down in stages. In January 2019, the main span was brought down with controlled explosions, and the steel fell into the river to be cleared away. Reports from that time describe some sections being reused, including pieces placed offshore to form artificial reefs for marine life. So part of the bridge your parents or grandparents crossed may now rest on the ocean floor, slowly gathering fish and coral-like growth.

Today, the new bridge offers something the old one never did. A shared path for walkers and cyclists runs along the northern span, more than three miles across the river. Along the way are several overlooks, small platforms where you can step aside and look out at the water. On a clear day, you can see north up the Hudson toward the hills, and south toward the wide mouth of the Tappan Zee. Joggers, families with strollers and cyclists all share the path.

As you stand here now, take a moment with the view. Watch a barge move slowly along the channel. Feel the wind on your face and listen to the traffic hum overhead. Old ferries crossed this water, then the steel bridge of 1955, and now these white towers. The river has stayed the same wide, grey sea the Dutch sailors named. As you walk back into South Nyack, look for the small streets that still run down toward the water.