Why the Meadowlands floods: Little Ferry, Moonachie and the pumps
Almost everything written about flooding here talks about storms. The records point somewhere else — to elevation, tide gates, and what happens when the power goes out.
Little Ferry and Moonachie flood more than anywhere else in Bergen County, and not because of the weather. The basin drains through tide gates and pumps, the pumps need electricity, and the land sits a few feet above sea level. Here is how the system actually works, drawn entirely from state recovery reports, FEMA claim records and the county's own hazard plan.
The short version
- Roughly 80 per cent of Little Ferry and 77 per cent of Moonachie sit in the FEMA 1 per cent annual chance flood zone; the state's recovery reports put the figures at about 94 and 98 per cent respectively.
- The flood source is tidal surge from Newark Bay travelling up the Hackensack, not local rainfall — so the rain forecast is a poor warning and the surge forecast is the one that matters.
- The basin drains through tide gates and pumps. When power fails the pumping stops: Main Street in Little Ferry stayed flooded more than five days after Sandy for that reason alone.
- Sandy produced about $13.86 million in FEMA assistance to owner-occupants in Little Ferry and $7.54 million in Moonachie — the two highest totals in Bergen County by a wide margin.
- Ordinary rain floods parts of the basin too: Moonachie's recovery report records flooding in certain areas during average rainfall, with a two-inch rain enough to affect critical areas.
- Standard homeowners insurance excludes this water. Flood cover is a separate policy with a waiting period, so it cannot be bought once a storm is forecast.
The two towns at the bottom of the basin
Bergen County's 2026 hazard mitigation plan puts roughly 80.3 per cent of Little Ferry's land area and 77.2 per cent of Moonachie's inside the FEMA 1 per cent annual chance flood zone. New Jersey's Department of Community Affairs, working from a different mapping vintage in its Strategic Recovery Planning Reports, put the figures higher still: about 94 per cent of Little Ferry, some 1,004 acres, and about 98 per cent of Moonachie under the preliminary 2014 maps, up from the 80 per cent-plus shown on the 2005 maps. Moonachie's average elevation is three feet above sea level. These are small places. Little Ferry has around 4,708 housing units at a median build year of 1964; Moonachie had roughly 2,700 residents and 1,011 households at the time its recovery report was written, including two mobile home communities totalling several hundred units. What they lack in size they make up for in exposure, and the federal loss record reflects it. After Hurricane Sandy, FEMA recorded 1,311 valid Individual Assistance registrations from owner-occupants in Little Ferry and paid roughly $13.86 million — the highest total of any municipality in Bergen County. Moonachie recorded 736 registrations and roughly $7.54 million. For comparison, the next highest municipal total in the county was Lyndhurst at about $1.70 million. The NFIP claim history tells the same story from another angle: of Little Ferry's 1,750 lifetime flood insurance claims, 923 date from 2012 alone, and of Moonachie's 371, some 259 do.
The water does not come from the sky
The most persistent misunderstanding about flooding here is that it tracks rainfall. It does not. New Jersey's recovery report for Little Ferry identifies the primary cause as tidal surge originating roughly twenty miles away at Newark Bay, travelling up the Hackensack River. During Sandy the surge in the Meadowlands reached eight and a half to nine and a half feet above mean sea level and, critically, stayed above seven feet for six hours. Water depth south of Route 46 in Little Ferry reached three to four feet. The tide gates that protect the basin were designed for a stage of about seven and a half feet; they were overtopped by more than two feet and held under for hours. Moonachie's report records that almost every building in the borough was significantly affected and that 62 per cent of properties and houses were damaged, with every municipal building flooded and some left unusable. This distinction is not academic for a property owner. It means the local rainfall forecast is close to useless as a warning here, and the thing worth watching is the tidal and storm surge forecast for the Hackensack. It also means flooding can arrive from a storm whose rain fell somewhere else entirely, and can persist across successive high tides after the weather has cleared.
Why the water stays after the storm leaves
The single most consequential fact about this basin is that it does not drain by gravity alone. Little Ferry and Moonachie sit low enough that stormwater has to be held back from the tide by gates and then lifted out by pumps. When the electricity fails, the pumping stops, and water that would otherwise clear in hours simply sits. New Jersey's report for Little Ferry records Main Street remaining flooded for more than five days after Sandy for precisely this reason. The infrastructure is modest in relation to the job. FEMA's Flood Insurance Study describes a tide gate and pumping station on Losen Slote near Birch Street with a maximum capacity of 27 cubic feet per second. A Rutgers and NJDEP study of the Hackensack River area found Moonachie served by roughly 22 miles of open drainage trenches that are sediment-clogged and would need something on the order of $4.3 million of dredging, and identified eight critical facilities in Moonachie and seventeen in Little Ferry — all of them inside the flood hazard area. Moonachie's three drainage systems, the Losen Slote Creek, the East Riser Ditch and the West Riser Ditch, all discharge to Berry's Creek, and the first of those is shared with Little Ferry, Carlstadt and South Hackensack. A capacity problem in one town is therefore a capacity problem in four.
It floods on ordinary rain too
Because the drainage system is at its limit in normal conditions, the basin does not need a hurricane. Moonachie's recovery report states plainly that regular flooding occurs in certain areas during average rainfall events, and that a two-inch autumn rain is enough to flood critical areas. The historical record for Little Ferry says much the same: before the pumping station was built, the area flooded repeatedly with just a few inches of rain. That station, a roughly $2 million replacement for a century-old wooden tide gate, was completed in July 1999 and performed during Hurricane Floyd two months later. The pattern recurs across the wider basin. The National Weather Service recorded that in December 2022, roughly one and a half to two inches of rain combined with surge up the Hackensack put more than two feet of water across Route 120 and Broad Street in Carlstadt, with police evacuating businesses and vehicles nearly submerged. None of those were extreme rainfall events. What they had in common was rain arriving while the receiving water was already high — compound flooding, where neither ingredient is remarkable on its own and the combination is what does the damage.
What has been built, and what has not
Work is underway, and it is worth being accurate about its scope. Little Ferry, Moonachie, Carlstadt, South Hackensack and Teterboro are the five municipalities in the Rebuild by Design Meadowlands programme. Under it, NJDEP is progressing the Liberty Street pump station and force main in Little Ferry, and the removal of a decommissioned tide gate foundation that restricts flow in Losen Slote Creek. A second pump station is planned for Carlstadt, along with channel improvements and bridge replacements in Carlstadt and Moonachie intended to expand East Riser Ditch capacity. Smaller mitigation has already been done: a $900,000 grant for a trash rake system at the Losen Slote tide gate, generators installed at the Willow Lake pump station and borough hall in Little Ferry, and in Moonachie, pump station repairs with electrical service raised above flood level and check valves on storm outflows. At the largest scale, the US Army Corps has proposed a 1,900-foot floodgate across the Hackensack at the Secaucus-Kearny border as part of a $52 billion regional plan with a construction window of 2030 to 2044. That plan is not funded by Congress, and critics note it addresses storm surge rather than rainfall flooding or sea level rise. One negative finding is worth stating explicitly, because it is often assumed otherwise: no publicly documented New Jersey Blue Acres buyout, acquisition or demolition could be found in either Little Ferry or Moonachie. Moonachie's own report notes the statewide buyout allocation and recommends the borough consider vulnerable parcels, but names no acquisitions.
What this means if you own property here
Four practical conclusions follow from the record above. First, watch the tide and surge forecast for the Hackensack rather than the rainfall forecast, because the rain is frequently not the driver. Second, plan for duration rather than depth: if the power goes out, the pumps stop, and standing water can outlast the storm by days, which is what turns a drying job into a demolition one. Third, understand that this water is flood water in the insurance sense — it enters from outside at ground level, a standard homeowners policy excludes it, and the cover that responds is a separate NFIP or private flood policy with a waiting period that makes it impossible to buy once a storm is forecast. Fourth, and hardest, take the repetitive-loss figure seriously. With 159 repetitive-loss properties recorded in Little Ferry alone as of January 2013, and repetitive-loss claims between 2009 and 2012 amounting to roughly $6.84 million in building payments plus about $380,000 in contents, a property that has flooded here once has a meaningful likelihood of flooding again. Rebuilding a basement or ground floor exactly as it was means accepting that loss a second time. Keeping utilities and valuables above the recorded flood level, and choosing materials below that line that survive being wetted, is the difference between an event that costs a weekend and one that costs a year.
Common questions
Why does the Meadowlands flood when it has barely rained?
Because the water is usually not rainfall. New Jersey's recovery report for Little Ferry identifies the primary flood mechanism as tidal surge originating around twenty miles away at Newark Bay and travelling up the Hackensack River. A storm whose rain fell elsewhere can still push surge into the basin, and because the land sits only a few feet above sea level, a high tide with an onshore wind can do meaningful damage with little or no local rain.
Why does the water take days to go away?
Because the basin cannot drain by gravity when the tide is up. Stormwater is held back by tide gates and then has to be lifted out by pumps, and pumps need electricity. New Jersey's report records Main Street in Little Ferry remaining flooded for more than five days after Sandy because the power failure stopped the pump stations. If the power is out after a flood here, the reasonable assumption is that the water is not going anywhere on its own.
Is the flooding being fixed?
Partly, and slowly. Little Ferry, Moonachie, Carlstadt, South Hackensack and Teterboro are in the Rebuild by Design Meadowlands programme, under which the Liberty Street pump station and force main are progressing in Little Ferry, with a second pump station planned for Carlstadt and channel work intended to expand East Riser Ditch capacity. Generators, raised electrical service and check valves have already been installed in places. The largest proposal, an Army Corps floodgate across the Hackensack, is unfunded and not scheduled to begin before 2030.
Does homeowners insurance cover this?
No. Water entering a building from outside at ground level is flood, which every standard homeowners policy excludes. Cover comes from a separate NFIP or private flood policy. Those policies carry a waiting period before they take effect, which means they cannot be purchased once a storm is in the forecast — so the time to check what you actually hold is now rather than during an event.
Find out who to call
Answer a few questions about what happened. You get the safety steps and the right trade whether or not you leave contact details.
Two referral lines cover this area. We have not vetted an individual company, and we will not route you to one whose coverage and registration we have not checked.
A pipe, water heater, sump pump or drain
Something inside the building failed and the water needs stopping.
Storm water, flooding or a soaked building
Water came in from outside, or the structure is wet and needs drying.
Not sure which you have? Answer a few questions and we will tell you. These are referral lines: they connect you to a company in the network, not to one this site operates or has inspected.
We are a free matching service, not a restoration contractor. Calls and requests are connected to independent providers.