How The Erie Canal Locks Work: A Plain Guide To Riding Through One

The Erie Canal does not run level. Between Waterford, where it leaves the Hudson River, and Tonawanda, where it meets the Niagara frontier, the waterway climbs and falls across 571 feet of New York terrain, and every foot of that change is handled by locks. The original 1825 canal needed 83 of them. The modern canal, straightened and enlarged, needs 35 on the Erie Canal itself, part of a 57-lock system across New York State's canals, according to the Erie Canalway National Heritage Corridor's locks page.

For most visitors, a lock is also the single most memorable part of a canal cruise. Boats glide into a stone chamber, the gates close, water rises or falls, and the boat exits at a different level. The Lockport Locks & Erie Canal Cruises operation at the Flight of Five in Lockport has built its whole two-hour cruise around that experience, and it carries a Tripadvisor-scope rating of 4.8 across 865 reviews, one of the two deepest review pools of any cruise on this canal. This guide explains the machinery, the numbers, and what actually happens when your cruise boat enters a chamber. Once you understand how the locks work, you may wonder whether the canal justifies a trip in the first place, and our honest verdict on the Erie Canal as a sightseeing stop weighs the locks, the cruises, and the ratings to answer that.

How Does An Erie Canal Lock Lift A Boat?

A lock is a water-filled staircase with doors at both ends. The boat enters through one gate, the gate closes, and the lock tender either lets water in from the higher level or drains it toward the lower level until the chamber matches the water outside the far gate. No pumps are involved, gravity does all the work, and the boat simply floats up or down with the water. The whole process usually takes ten to fifteen minutes.

The principle has not changed since 1825, though the scale has. The original canal's locks were 90 feet long and its channel was 40 feet wide and 4 feet deep, built at a cost of $7,143,789 after authorization on April 15, 1817. Today's barge canal carries locks 310 feet long in a channel that runs 120 to 200 feet wide and 12 to 23 feet deep, per the Heritage Corridor's fast-facts page. A modern chamber swallows a full-length tour boat with room to spare. If you're curious how that depth affects what you can actually float on it today, our guide to the canal's current depth explains what the modern channel means for boats and cruises.

The steps are simple enough that a first-time passenger can follow every one of them from a rail-side seat:

The number that surprises people is the speed. A 24-foot lift at Lockport takes minutes, not hours, because the fill valves move a large volume of water quickly. Locks are the reason a 338-mile canal can cross a state whose Niagara Escarpment alone stands roughly 60 feet above the level of Lake Ontario's basin at Lockport.

How Many Locks Does The Erie Canal Have?

The Erie Canal has 35 locks today, numbered E1 through E35 westbound from Waterford, inside a New York State canal system that counts 57 locks across all its branches. The Erie Canal locks together manage a 571-foot elevation change between Albany and Buffalo. The tallest single lift on the canal's cruise-boat sections is at Lockport, where Locks E34 and E35 together raise boats 49.1 feet. For a fuller picture of the waterway these locks serve, see how long the Erie Canal runs from Albany to Buffalo.

The numbering runs west from Waterford, where the canal leaves the Hudson, to Tonawanda near Buffalo. Lock E1 at Waterford is the start of the famous Flight, a staircase of locks packed into a short stretch of the Mohawk's banks, where the Canal Corporation's official notice asks westbound boaters to arrive by 5 p.m. if they want to clear the full flight the same day. From there the locks step up the Mohawk Valley, crest near Rome, and step down again toward the west.

A lock-by-lock look at the ones a cruise passenger is most likely to ride through:

The Heritage Corridor's locks overview page carries the full count and the system map, and the history of how the canal grew from 83 small locks to 35 large ones is covered in our own Erie Canal history guide.

If riding through a working chamber is the goal, three cruises on this canal do it best, and each pairs the lock passage with a different stretch of water:

The Lockport cruise is the deepest lock experience on the canal, two chambers and 49.1 feet of combined lift in one two-hour outing. The Sam Patch cruise out of Pittsford village runs 90 minutes through Lock 32, a single working chamber. The Herkimer cruise covers Lock 18 on a weather-protected vessel that runs rain or shine.

What Makes The Lockport Double Locks Special?

Lockport's Locks E34 and E35 are the Erie Canal's only side-by-side double set, lifting boats a combined 49.1 feet up the face of the Niagara Escarpment, 24.6 feet in E35 and 24.5 feet in E34. The operator rounds this to 50 feet in its own materials, but the official guidebook figure is 49.1. They sit beside the restored Flight of Five, the original 1849 staircase locks 69 and 70, which reopened in 2014.

A double set means the boat enters one chamber, rises, and immediately enters the second. Passengers get two full lock passages back to back, watching the stone walls slide past twice. The operator calls it the only double set on the Erie Canal, and the roster of cruises on this site bears that out: every other cruise passes through a single lock, or none.

The setting is the reason the site became the canal's signature stop. The modern concrete locks share the escarpment wall with the restored Flight of Five, the hand-built 1849 locks that carried packet boats up the same cliff in a five-step staircase. The Erie Canalway National Heritage Corridor names the Lockport Locks District, the Discovery Center and the cruise operator among the district's assets. The free Locks District Museum, open 8 a.m. to 5 p.m. daily through the canal season, sits between the two lock sets. The museum is one of several no-cost stops in the area, and our guide to free things to do along the Erie Canal covers the rest of them.

The cruise that uses these locks departs from the dock at 210 Market Street, Lockport, at the top of the Flight of Five. 2026 public cruises run May 11 to Oct 16, daily at 12:30 and 3:00 p.m., with an added 10:00 a.m. sailing daily from June 23 to Sept 6 and on Saturdays in the spring and fall shoulders. Tickets start at $26 per adult, children 4 to 10 pay $12.50, under 4 ride free, and AAA and CAA members pay $24.50. The full picture of that operator is in our Lockport locks cruise guide.

Which Cruise Locks Can You Ride Through On A Narrated Cruise?

Four cruise operations on the Erie Canal pass through working locks: Lockport Locks & Erie Canal Cruises through E34 and E35, Erie Canal Cruises of Herkimer through Lock 18, the Sam Patch of Rochester By Water through Lock 32, and Colonial Belle of Fairport through a lock on its three-hour cruises. Colonial Belle's two-hour afternoon and Sunday brunch cruises do not pass through a lock at all, a distinction the operator's own page makes clear.

The choice among them is mostly a choice of geography and of how much locking you want. A single chamber, like Lock 32 or Lock 18, gives you the full rise-and-fall experience once. Lockport gives it to you twice, on the canal's steepest face. Fairport's three-hour lock cruise trades the double-set drama for a long, quiet run of canal between villages.

The Herkimer operation is the only canal cruise in the Mohawk Valley on this roster. It departs from Gems Along the Mohawk, 800 Mohawk Street in Herkimer, across from Thruway Exit 30, on a weather-protected vessel that sails rain or shine. The 2026 season runs daily May 22 to Oct 12 at 1 p.m. and/or 3 p.m., with some days adding a 10:30 a.m. sailing, and adults pay from $29. Our Mohawk Valley cruise guide covers it in detail.

The Sam Patch runs from 12 Schoen Place in Pittsford village, a dock in the middle of a canal-side commercial district, and its 90-minute cruise threads Lock 32 with a narrator aboard. Adults pay from $30, seniors 65 and over and military pay $28, students $25, and age 3 and under ride free. The operator prints no 2026 dates, so the live listing is the place to confirm sailing days.

Colonial Belle's three-hour lock cruise from Packett's Landing in Fairport is the longest lock passage among the day cruises, at $44 per adult, with a $67 lunch package on select days. The operator's season runs May 15 to Oct 30, 2026. Its rating of 4.2 comes from 53 reviews, a small pool, so weigh it accordingly.

If the question is simply which cruises lock through and which do not, our lock-passage comparison guide breaks the whole roster down by that one criterion.

What Are The Lock Hours And The Rules For Boats?

Standard lock hours on the New York State canal system are 8 a.m. to 6 p.m. daily, extended to 8 a.m. to 9 p.m. at select locks through the peak season. There are no tolls or fees for recreational use in 2026. The navigation season runs May 15 to October 14, and the Canal Corporation asks boaters to arrive at the Waterford Flight by 5 p.m. to clear the full flight.

Those hours matter to cruise passengers less than to private boaters, since the tour operators schedule inside them, but they explain why cruise times look the way they do. A 3 p.m. Lockport sailing fits comfortably inside the 6 p.m. standard close; an evening cruise only works where extended hours apply, which is why Fairport's lift bridge and the Lockport and Pittsford locks appear on the extended-hours list in the Canal Corporation's own notice.

The Canal Corporation's boating hours page carries the official schedule, and its canal alerts page posts temporary notices, lock repairs and lift-bridge work as they happen. Weather and water levels can change any operator's schedule, so the operator's page is the final word on whether a given sailing runs. For a fuller treatment of the season question, see our best time for an Erie Canal boat tour guide.

What Do Passengers Actually Do During A Lock Passage?

On a narrated cruise, passengers stay seated while the crew handles the lines, and the boat drifts into the chamber under the lock tender's direction. The narrator keeps talking through the fill or drain, pointing out the gate machinery and the waterline on the walls. There is nothing to operate and nothing to help with; the crew secures the boat, and the lock tender on shore runs the gates and valves.

The experience from the rail is quiet and physical at once. The gates close behind the boat with a heavy final sound, the water goes glass-still, and then the level simply changes. Rising through E35 at Lockport, the stone and concrete of the escarpment slide downward past the deck until the far gates sit level with the bow. Descending, the walls climb. Passengers on the Lockport cruise report the double passage as the highlight of the two hours, and the volume of reviews, 865 on the operator-scope Tripadvisor listing, reflects how many people come specifically for it.

What the operator's own pages state about the practical side: the Lockport cruise has a snack area but no meal, and there is no pickup, guests drive themselves to the dock at 210 Market Street. The Herkimer boat sells snacks for cash only. The Sam Patch sells drinks and snacks aboard. Colonial Belle offers a lunch package on its cruises and a Sunday brunch cruise, none of which changes the lock procedure: sit, watch, listen.

One caution that applies to every lock on the system: the machinery is real industrial equipment. Stay behind the rails, keep hands off the gates and bollards, and let the crew do the line work. The lock tenders and the cruise crews do this many times a day, and the routine they run is built around passengers who stay seated and clear of the working edges.

Can You Rent A Boat And Work The Locks Yourself?

Yes. Erie Canal Adventures, the operator formerly known as Mid-Lakes Navigation before a 2019 transfer, rents self-skippered Lockmaster canal boats from a base at 1125 Marina Parkway in Macedon, and the charterer drives the boat through the locks after an orientation and training session. Rates start at $2,770 per private boat for three nights on the 34-foot Lockmaster, with fuel, tolls, training, cleaning, linen and equipment included.

This is a different experience from a narrated cruise. On a rental, you are the crew: you steer into the chamber, you take the lines, and you work with the lock tenders yourself. The operator's training at orientation covers the procedure, and the 2026 season is open for reservations, with the canals closing to boats after October 14. The 41 and 42 foot Lockmasters share one rate, from $3,299 for three nights, and The Harriet, with a queen bed and a sitting parlor, starts at $3,399. New York sales tax is added at booking. Our canal boat rental guide walks through the whole decision.

The operator carries a 4.9 rating across 36 reviews, a small pool, and the appeal is obvious to anyone who has watched a lock passage from a rail and wondered what it feels like to run the lines. It is also the most expensive way onto the canal water by a wide margin, which is why most visitors start with a two-hour narrated cruise and consider the charter later. The question of whether the locks still work at all, and how the system is maintained, is answered in our piece do the locks on the Erie Canal still work.

Choosing among all of these comes down to how much of the lock machinery you want to touch. A narrated cruise shows you the system working at arm's length, twice over at Lockport. A charter puts your hands on it. Either way, the locks are the canal's defining machinery, and Erie Canal Boat Tours exists because so many people want to see exactly that. If a narrated lock passage is the plan, these three are the cruises that deliver one:

Common Questions About Erie Canal Locks