How Alexander Hamilton's House Got Moved

Wolfe House and Building Movers
Wolfe House and Building Movers

For nearly three weeks in the spring of 2008, residents and passersby near Convent Avenue and 141st Street in Harlem craned their necks to take in a peculiar sight. Positioned atop a 38-foot structure of crib piles, shimmies, and steel beams was a two-story yellow house originally built for Alexander Hamilton, the first Secretary of the Treasury and future Broadway musical sensation.

On site since 1889, the house—which Hamilton called the Grange after his Scottish grandfather, the onetime Laird of Grange—had been the subject of debate for nearly a century. Boxed in by an apartment building on its right side and a church on its left, it was being suffocated by real estate development and in desperate need of an extensive renovation. To do that, it would have to be relocated. But the loggia (a porch-like structure) of the church jutted in front, making a direct move forward impossible.

In order to restore the house to its original condition, the National Park Service would have to effectively perform a housing transplant, moving it around 500 feet to a park site. They considered cutting it in half, or lopping off pieces that they could later put back together. But a proposal from a family-owned firm that specializes in moving houses offered a different approach: They’d raise the house up on jacks, slide it over onto the street, equip it with wheels, then “drive” it around a corner and down a 6 percent grade.

It would be delicate work, but it wasn't as though the Grange hadn't been on the move before.

The Hamilton house is raised 32 feet above grade
Wolfe House and Building Movers

For all of the historical significance attached to the Grange, Hamilton didn’t have a lot of time to enjoy it. Built in what was then countryside by architect John McComb Jr., who also designed City Hall, the home was finished in 1802 and owed a lot of its design to Hamilton himself. Roomy enough for his seven children and 1000-book library, he considered it his retreat from politics and the danger of yellow fever in the city. Away on business, he often left instructions for his wife, Eliza, for specific garden arrangements.

Just two years after the Grange was completed, Hamilton walked out the door for his fateful duel with Aaron Burr and never returned. His widow sold it in 1833.

By 1889, the Grange was blocking the expanding street grid of Manhattan. (West 143rd Street would have been built through it.) Land developers who had possession of the property donated it to St. Luke’s Episcopal Church, which set about preserving the building by moving it 250 feet to Convent Avenue. “It was done the old-fashioned way,” Stephen Spaulding, Director of the Historic Architecture, Conservation and Engineering Center at the National Park Service, tells Mental Floss. “They put it on railroad jacks, used wooden wheels, and pulled it with horses.”

Though it was safe from destruction in its new location, the Grange would shortly find itself buttressed by developments on either side. An apartment building built in 1910 flanked the right side; the church to the left built a porch that partially obscured the view from the street. It was a suffocating position that made needed renovations difficult. The National Park Service, which took responsibility for the Grange when it became a National Memorial in 1962 on the condition it could be relocated, went through a series of options. “There were a number of locations discussed,” Spaulding says. Grant’s Tomb, a National Memorial on Riverside Drive and 122nd Street in New York, was one possibility.

By the early 1990s, the NPS had one site in mind: St. Nicholas Park, which sat just 500 feet from the Grange and featured a hillside clearing perfect for the historic property. But locals were against the move; they complained removing the house from its location next to the church would contribute to blight in the area by leaving a vacant lot.

Complicating the matter was the notion of the federal government (via the Park Service) colluding with New York state and city bureaucracy to facilitate the project. “That was a long process,” Spaulding says, citing endless federal and state regulations that had to be cleared in order to cut a path for the disruptive move. Once that was settled, the NPS had to field bids from firms that offered different approaches for uprooting the building, which stood on a double basement foundation.

“We basically had three options,” Spaulding says. “We could remove the church porch and then reconstruct it afterward. We could disassemble and move major sections. Or we could raise it up by jacking it.”

The first two options carried major caveats. The church's stone porch was fragile and the potential for damage was high; moving the house piecemeal could have proven hazardous to the structural integrity of the Grange. Aiming to mitigate that risk, the contractor for the move, Integrated Construction Enterprises, brought in Wolfe House & Building Movers, an East Coast firm that specializes in moving multi-ton buildings in a methodical manner.

Mike Brovont, an estimator with Wolfe House, tells Mental Floss that the firm is just “one of a handful” that can handle projects of this scope. “There are a few hundred guys who can jack up a house and put it on a foundation,” he says. “But this one had some unusual needs.”

The church’s stone porch was problem one. “And we couldn’t go in from the back because of trees,” Brovont says. Wolfe’s plan was to come at the problem vertically, raising the house off its foundation 38 feet in the air to clear the obstruction of the porch. “This way, we could keep it intact.”

Over a period of three weeks in May and June 2008, Wolfe employees performed a structural levitation act. The Grange—which weighs roughly 300 tons—was raised in stages. First, the Grange's porch needed to be removed, since it couldn’t be counted on to remain intact. Next, workers drilled holes through the exposed foundation in order to install steel beams that would facilitate the lift. For areas underneath making little contact with the beams, shims and blocks were hammered in to create a flush connection.

Once the house was framed underneath with the beams, hydraulic jacks were placed beneath those to begin pushing the house upward. When it reached the 82 feet needed to clear the porch, crib piles—think warehouse pallets resembling several enormous Jenga towers—were placed underneath for support while another crib structure was built in front on the street. Hevi-Haul rollers pushed by hydraulic rams allowed the first set of steel beams to be rolled onto the adjacent frame, putting the house on a new structure and away from the neighboring buildings.

“At that point, we reversed the jacks until the house was back down on the cribbing piles, then on dollies,” Brovont says. The nine dollies, which could be controlled remotely, effectively turned the house into a mobile home with 72 wheels. It was time to go for a short, highly precarious ride.

A contractor evaluates the wheeled dollies underneath the Hamilton house
Wolfe House and Building Movers

On, June 7, 2008—moving day—dozens of residents, reporters, and protesters gathered to see a rare event: a historic landmark locomoting down the street. The house would have to endure both a turn and a 6 percent grade down the street, which had been cleared and prepared in advance. Internal bracing kept the house from experiencing undue stress; a mile of chain added cross-braced support to the beams. Heavy forklift equipment followed behind to provide braking power in case the house wanted to edge backward.

“At its fastest, it was probably at the speed of a slow walk,” Brovont says. “We hooked the dollies together with hydraulic fluid hoses and stopped a lot to check and make sure everything was holding. It was on a level plane kind of like a tricycle." With nine dollies, the home could be turned in any direction.

A temporary road was built to make the turn level. In about three hours, the Grange had arrived in St. Nicholas Park, idling for a bit while construction workers finished its new foundation. The house was then rolled onto steel beams, “parking” itself permanently. (The Convent Avenue site now sports a garden and a Hamilton statue.)

“The work I thought would be most precarious ended up being the simplest,” Spaulding says of the rolling home. “I was very impressed with [Wolfe’s] skills.”

The move was the penultimate stage in what would eventually be a $14.5 million project. For the next several years, the NPS supervised an extensive restoration of the Grange that allowed its original character to shine through. “It used to be so dark and dismal,” Spaulding says. “Now you can see all four sides of the exterior and really get a sense of how glorious it must have been sitting on the crown of Manhattan.”

The Hamilton musical obviously led to a bump in tourism for the Grange, which is open to the public in its new, static location. For Spaulding, seeing it in motion was a memorable ride. “The geek in me, the 8-year-old in me, really loves that stuff.”

10 Products for a Better Night's Sleep

Amazon/Comfort Spaces
Amazon/Comfort Spaces

Getting a full eight hours of sleep can be tough these days. If you’re having trouble catching enough Zzzs, consider giving these highly rated and recommended products a try.

1. Everlasting Comfort Pure Memory Foam Knee Pillow; $25

Everlasting Comfort Knee Pillow
Everlasting Comfort/Amazon

For side sleepers, keeping the spine, hips, and legs aligned is key to a good night’s rest—and a pain-free morning after. Everlasting Comfort’s memory foam knee pillow is ergonomically designed to fit between the knees or thighs to ensure proper alignment. One simple but game-changing feature is the removable strap, which you can fasten around one leg; this keeps the pillow in place even as you roll at night, meaning you don’t have to wake up to adjust it (or pick it up from your floor). Reviewers call the pillow “life-changing” and “the best knee pillow I’ve found.” Plus, it comes with two pairs of ear plugs.

Buy it: Amazon

2. Letsfit White Noise Machine; $21

Letsfit White Noise Machine
Letsfit/Amazon

White noise machines: They’re not just for babies! This Letsfit model—which is rated 4.7 out of five with nearly 3500 reviews—has 14 potential sleep soundtracks, including three white noise tracks, to better block out everything from sirens to birds that chirp enthusiastically at dawn (although there’s also a birds track, if that’s your thing). It also has a timer function and a night light.

Buy it: Amazon

3. ECLIPSE Blackout Curtains; $16

Eclipse Black Out Curtains
Eclipse/Amazon

According to the National Sleep Foundation, too much light in a room when you’re trying to snooze is a recipe for sleep disaster. These understated polyester curtains from ECLIPSE block 99 percent of light and reduce noise—plus, they’ll help you save on energy costs. "Our neighbor leaves their backyard light on all night with what I can only guess is the same kind of bulb they use on a train headlight. It shines across their yard, through ours, straight at our bedroom window," one Amazon reviewer who purchased the curtains in black wrote. "These drapes block the light completely."

Buy it: Amazon

4. JALL Wake Up Light Sunrise Alarm Clock; $38

JALL Wake Up Light Sunrise Alarm Clock
JALL/Amazon

Being jarred awake by a blaring alarm clock can set the wrong mood for the rest of your day. Wake up in a more pleasant way with this clock, which gradually lights up between 10 percent and 100 percent in the 30 minutes before your alarm. You can choose between seven different colors and several natural sounds as well as a regular alarm beep, but why would you ever use that? “Since getting this clock my sleep has been much better,” one reviewer reported. “I wake up not feeling tired but refreshed.”

Buy it: Amazon

5. Philips SmartSleep Wake-Up Light; $200

Philips SmartSleep Wake-Up Light
Philips/Amazon

If you’re looking for an alarm clock with even more features, Philips’s SmartSleep Wake-Up Light is smartphone-enabled and equipped with an AmbiTrack sensor, which tracks things like bedroom temperature, humidity, and light levels, then gives recommendations for how you can get a better night’s rest.

Buy it: Amazon

6. Slumber Cloud Stratus Sheet Set; $159

Stratus sheets from Slumber Cloud.
Slumber Cloud

Being too hot or too cold can kill a good night’s sleep. The Good Housekeeping Institute rated these sheets—which are made with Outlast fibers engineered by NASA—as 2020’s best temperature-regulating sheets.

Buy it: SlumberCloud

7. Comfort Space Coolmax Sheet Set; $29-$40

Comfort Spaces Coolmax Sheets
Comfort Spaces/Amazon

If $159 sheets are out of your price range, the GHI recommends these sheets from Comfort Spaces, which are made with moisture-wicking Coolmax microfiber. Depending on the size you need, they range in price from $29 to $40.

Buy it: Amazon

8. Coop Home Goods Eden Memory Foam Pillow; $80

Coop Eden Pillow
Coop Home Goods/Amazon

This pillow—which has a 4.5-star rating on Amazon—is filled with memory foam scraps and microfiber, and comes with an extra half-pound of fill so you can add, or subtract, the amount in the pillow for ultimate comfort. As a bonus, the pillows are hypoallergenic, mite-resistant, and washable.

Buy it: Amazon

9. Baloo Weighted Blanket; $149-$169

Baloo Weighted Blanket
Baloo/Amazon

Though the science is still out on weighted blankets, some people swear by them. Wirecutter named this Baloo blanket the best, not in small part because, unlike many weighted blankets, it’s machine-washable and -dryable. It’s currently available in 12-pound ($149) twin size and 20-pound ($169) queen size. It’s rated 4.7 out of five stars on Amazon, with one reviewer reporting that “when it's spread out over you it just feels like a comfy, snuggly hug for your whole body … I've found it super relaxing for falling asleep the last few nights, and it looks nice on the end of the bed, too.” 

Buy it: Amazon 

10. Philips Smartsleep Snoring Relief Band; $200

Philips SmartSleep Snoring Relief Band
Philips/Amazon

Few things can disturb your slumber—and that of the ones you love—like loudly sawing logs. Philips’s Smartsleep Snoring Relief Band is designed for people who snore when they’re sleeping on their backs, and according to the company, 86 percent of people who used the band reported reduced snoring after a month. The device wraps around the torso and is equipped with a sensor that delivers vibrations if it detects you moving to sleep on your back; those vibrations stop when you roll onto your side. The next day, you can see how many hours you spent in bed, how many of those hours you spent on your back, and your response rate to the vibrations. The sensor has an algorithm that notes your response rate and tweaks the intensity of vibrations based on that. “This device works exactly as advertised,” one Amazon reviewer wrote. “I’d say it’s perfect.”

Buy it: Amazon

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

14 Powerful Facts About the Hoover Dam

Ryan Thorpe, Unsplash // Public Domain
Ryan Thorpe, Unsplash // Public Domain

The hulking Hoover Dam has been holding back the Colorado River and generating power since 1936, but you may be surprised to learn just how eventful its construction and naming were.

1. The construction of the Hoover Dam forced Las Vegas to clean up its act.

Once the public caught wind of the plans to build a dam in Nevada’s Black Canyon, surrounding cities appreciated the potential economic windfall such an undertaking would bring. Las Vegas became especially eager to house the project’s headquarters, even going so far as to sacrifice its “party city” reputation to appear worthy of the honor. When Secretary of the Interior Ray Lyman Wilbur, a major player in the project, came to town for a 1929 visit, local authorities in Las Vegas shut down a slew of its speakeasies and brothels for the day in an attempt to seem classier.

2. An entire city sprang up to support construction of the Hoover Dam.

Panorama of Boulder City, Nevada from Water Tank Hill
1932 panorama of Boulder City, Nevada, from Water Tank Hill.
U.S. National Archives and Records Administration, Wikimedia Commons // Public Domain

Sin City’s efforts were ultimately futile, and a planned community went up to house the 5000-person workforce. Miles of paved streets and railroad tracks connected the canyonside village to the project site and neighboring Las Vegas. The community, known as Boulder City, is still standing. However, delays in its development forced a good number of early workers to reside in the nearby Ragtown, which lived up to its name with extremely humble living conditions.

3. The Hoover Dam contains enough concrete to stretch across the United States.

The Bureau of Reclamation—the department subsidizing the project—supplied a whopping 3.25 million cubic yards of concrete for the dam itself, plus another 1.11 million cubic yards for the power plant and additional facilities. This quantity of concrete would be enough to build 3000 miles of road—a full-sized highway from one end of the United States to the other. Additionally, the dam required about 5 million barrels of cement, nearly equaling the total quantity of cement the Bureau used in its previous 27 years of existence.

4. The world’s largest refrigerator cooled all the concrete used for the Hoover Dam.

As you may guess, all this concrete posed some challenges. Without engineers’ intervention, it would have taken the massive blocks of poured concrete 125 years to cool, and this gradual drying would have left the pieces susceptible to breaking. To speed up the process, an engineering team designed a mammoth refrigeration machine. The supersized fridge dispensed upwards of 1000 tons of ice every day, speeding up the cooling and lopping decades off the project’s timeline.

5. The first summer of construction on the Hoover Dam had record-breaking heat.

The giant fridge had its work cut out for it. Work on the Hoover Dam kicked off in April 1931, not long before Nevada’s Clark County weathered some of its hottest temperatures on record. The month of June delivered an average daily high of 119°F, prompting a wave of heatstroke among workers.

6. The Hoover Dam’s laborers were terrific showmen.

Native Americans employed on the construction of Hoover Dam as high-scalers.
A group of Native Americans who worked on the Hoover Dam as high scalers, 1932.
National Archives and Records Administration, Wikimedia Commons // Public Domain

Despite the punishing temperatures, construction attracted curious and enthralled spectators from across the country. Even more entertaining than the technological feats of the project were the death-defying antics of the “high scalers,” who rappelled down the Black Canyon to remove loose rock from the gorge’s walls. While one might expect such a job to be handled with extreme caution, the high scalers became famous for their playful, albeit ill-conceived, stunts.

Spectators were particularly fond of the antics of daredevil Louis Fagan, nicknamed “The Human Pendulum” and “One-Rope Fagan.” When teams worked on outcroppings in the canyon walls, they would move from one area to another by locking their arms and legs around Fagan and having him swing them to their next spot.

7. One heroic high scaler saved his boss’s life during construction on the Hoover Dam.

Fagan was impressive, but Oliver Cowan trumped his fellow high scalers when he snatched his falling supervisor right out of the sky. When Bureau of Reclamation engineer Burl R. Rutledge lost his hold on a safety line at the top of the canyon, he would have plummeted to his demise had Cowan, who was working 25 feet blow, not grabbed his leg as he fell. Shortly after the episode, the city of Las Vegas lobbied for a Carnegie Medal in recognition of the local man’s bravery.

8. The Hoover Dam’s chief engineer badmouthed his workers to the local press.

Not everyone was as impressed with the workforce. The hazards of the construction site and poor conditions in Ragtown contributed to the labor force’s decision to strike in 1931. A committee formed to express the workers’ demands, to which the project’s chief engineer and superintendent, Francis Trenholm Crowe, was defiantly unsympathetic. In fact, Crowe contested each of the team’s qualms with the suggestion of eagerness to have the workforce replaced. Print interviews in local news publications quoted Crowe as calling his men “malcontents” who he “would be glad to get rid of.” The hard line gambit worked, and eventually the laborers returned to work.

9. Nobody really wanted to name the dam after Herbert Hoover.

In retrospect, it seems strange that one of the country’s most impressive feats is named after one of its least beloved presidents. In fact, Hoover is understood to have only earned the honor through a political publicity stunt. In 1930, Secretary of the Interior Wilbur traveled to the site to mark the dam project’s official opening. He took advantage of the pageantry to declare, “I have the honor and privilege of giving a name to this new structure. In Black Canyon, under the Boulder Canyon Project Act, it shall be called the Hoover Dam.”

In other words, Wilbur named the dam after his boss. As Hoover was already widely maligned for his part in kicking off the Great Depression, the name was hotly contested. Wilbur’s successor, Harold L. Ickes, was a particularly vocal critic, and in 1933 he switched the in-progress structure’s name to “Boulder Dam.”

10. Herbert Hoover wasn’t even invited to the dam’s dedication.

Interior Secretary Harold L. Ickes delivers his talk at the dedication of Hoover Dam
Interior Secretary Harold L. Ickes delivers his talk at the dedication of Hoover Dam.
Bureau of Reclamation, Wikimedia Commons // Public Domain

Ickes was hardly alone in his low opinion of Hoover. His own boss, Franklin D. Roosevelt, didn’t think much of Hoover’s presidential acumen, either. When FDR oversaw the dedication of the still nebulously named dam in 1935, he declined to invite his predecessor and even refused to give Hoover the expected nod in his ceremonial speech.

11. The Hoover Dam didn’t officially take its name until 1947.

The dam spent the 14 years following Ickes’s proclamation without an official name. Ultimately, on April 30, 1947, President Harry S. Truman signed a law authorizing the original Hoover handle, recognizing the 31st president’s hand in bringing the dam to life in the first place.

12. Nazis attempted to blow up the Hoover Dam.

In 1939, the United States government learned of a pair of German Nazi agents’ scheme to bomb the Hoover Dam and its power facilities. Destruction of the dam itself was not the central goal, but hampering its energy production was a key piece of the agents’ plan to undercut California’s aviation manufacturing industry. To ward off aerial attacks, authorities considered camouflaging the Hoover Dam with a paint job or even building a decoy dam downstream from the real thing. Ultimately, the Germans only managed to get as far as conducting onsite investigative work before their ploy was quashed, thanks to an increase in military security around the dam.

13. Today, the Hoover Dam helps power three states.

The dam’s energy helps keep the lights on for customers in California, Arizona, and Nevada. It creates enough power for 1.3 million people.

14. The Hoover Dam was once the world’s tallest dam.

When it was finished in 1936, the Hoover Dam was remarkable not only for having completed construction a full two years ahead of schedule, but also for its unprecedented stature. The Black Canyon structure stretched 726 feet from base to top, practically soaring above the old record holder, Oregon’s 420-foot-tall Owyhee Dam. After holding the height title for two decades, Hoover was at last outdone by Switzerland’s 820-foot-tall Mauvoisin Dam in 1957. Eleven years later, it lost its domestic title to California’s 770-foot-tall Oroville Dam.