Margaret Kelsey keeps a spiral notebook in the glovebox of her 2004 Subaru. The cover is held on with packing tape, and the pages are cross-hatched with ballpoint pen—dates, compass bearings, water depths measured with a yardstick she bought at the old Kmart on Upper Front Street. For fifteen years, she has been doing something that no city agency, no county planning department, and no federal flood map has done: she has named every unnamed stream, gully, and persistent wet-weather seep on Binghamton’s South Side.
“This one,” she told me on a drizzly Tuesday in April, pointing to a shallow ditch behind a row of garages on Mary Street, “I call Garages Creek. It only runs when the snow melts or we get more than half an inch of rain. But when it runs, it runs right into the basement of that yellow house. The city’s stormwater model doesn’t even show it.”
Kelsey, 68, is a retired school librarian who moved to Binghamton in 1987. She has no formal training in hydrology or civil engineering. What she has is a librarian’s instinct for cataloging, a neighbor’s willingness to knock on doors, and a conviction that the water moving through her neighborhood tells a story that official documents have not yet learned to read. Her project—part oral history, part citizen science, part personal obsession—has become one of the most detailed grassroots watershed narratives in Broome County. And it points toward a kind of climate adaptation that starts not with a grant application or a consultant’s report, but with someone walking the block after a heavy rain and writing down what she sees.
The Gaps in the Official Maps
Binghamton’s flood risk is well documented in broad strokes. The Susquehanna and Chenango rivers define the city’s geography, and the 2006 and 2011 floods are burned into collective memory. FEMA’s Flood Insurance Rate Maps show the 100-year and 500-year floodplains. The city’s stormwater management program tracks the combined sewer system, the outfalls, the major culverts. But those maps have a resolution problem. They capture the big rivers and the named tributaries—Fuller Hollow Creek, Pierce Creek, the ones that appear on USGS topographic quads. They miss the dozens of small, intermittent drainage paths that only carry water during snowmelt or intense downpours, the ones that don’t have official names because they were never big enough to warrant a name.
“FEMA maps are designed for insurance rating, not for telling you which basement is going to flood next Tuesday,” Kelsey said. “They’re looking at the river. I’m looking at the alley.”
That distinction matters. In a city like Binghamton, where the housing stock is old, the topography is steep, and the combined sewer system dates to the 19th century, the difference between a dry basement and a flooded one often comes down to a drainage path that doesn’t appear on any official map. A clogged culvert under a driveway. A buried stream that still flows through a century-old stone channel beneath someone’s foundation. A parking lot that sheds water into a neighbor’s yard because the original grade was altered in 1962 and nobody wrote it down.
Kelsey’s notebooks capture all of it. She has documented 47 distinct flow paths on the South Side alone—some that run only a few hundred feet before disappearing into a storm drain, others that emerge from hillside seeps and flow for half a mile before joining a named creek. She has given each one a name: Garages Creek, St. John’s Run (after the Ukrainian church whose parking lot feeds it), Mulberry Seep, the Alley Branch. The names are practical, descriptive, and rooted in the neighborhood’s landmarks. They are also, in a legal and cartographic sense, unofficial. But for the people who live along them, they have become real.
How the Mapping Began
Kelsey started her project in 2009, after a summer thunderstorm dropped three inches of rain in two hours and flooded her own basement. She had lived in her house on Vestal Avenue for more than two decades and had never seen water come in like that. When she called the city to report the flooding, the engineer who came out was polite but puzzled. The storm drain at the end of the block had been clear. The sewer lateral was fine. The water, he said, seemed to be coming from somewhere uphill—but he couldn’t say exactly where.
“That was the moment I realized nobody actually knew where the water was coming from,” Kelsey said. “Not the city, not the county, not the insurance company. So I decided to find out.”
She started with a clipboard and a pair of rubber boots. She walked every alley, every vacant lot, every backyard she could get permission to enter. She talked to neighbors who had lived on the South Side for fifty, sixty, seventy years. She learned that the empty lot on Conklin Avenue had once been a spring-fed pond that supplied water to a 19th-century brewery. She learned that the dip in the pavement on Holland Street marked the path of a stream that had been culverted in 1912 and never maintained. She learned that the basement flooding on Mary Street wasn’t random—it followed the same route every time, a route that had been a surface stream before the neighborhood was platted in the 1880s.
Over time, her project evolved from a personal frustration into a community resource. She started bringing her maps to neighborhood association meetings. She shared them with the Broome County Soil and Water Conservation District. She gave copies to the city’s engineering department, where at least one staff member now keeps them in a desk drawer for reference. “They’re not official,” Kelsey said, “but they’re accurate. And sometimes that’s more useful.”
Naming as an Act of Attention
There is something deeply human about naming the unnamed. To give a name to a stream, even an intermittent one that only flows for a few weeks each spring, is to assert that it matters. It becomes part of the neighborhood’s story. It becomes something you can talk about at a block party or a city council meeting. It becomes, in a small but real way, a piece of shared infrastructure—not a pipe or a culvert, but a piece of knowledge that the community holds in common.
“When I tell someone they live next to Garages Creek, they look at their property differently,” Kelsey said. “They start paying attention to where the water goes. They clean out the leaves. They talk to their neighbors upstream. It changes how they relate to the place.”
This is not just poetry. It has practical consequences. In 2018, when the city was planning a street repaving project on the South Side, Kelsey’s maps helped identify three locations where the new curb cuts would have directed stormwater into low-lying backyards. The engineering department adjusted the design. In 2021, when a developer proposed building on a vacant lot that Kelsey had mapped as a seasonal wetland, her documentation helped the planning board ask better questions about drainage. The project was modified to preserve a swale that now handles runoff from half a block.
The act of naming and narrating a place’s hidden hydrology does something that technical models alone cannot do: it makes the water legible to the people who live with it. A FEMA map tells you your flood zone. Kelsey’s notebook tells you that the water comes through the gap in the retaining wall behind the old garage, flows across the alley, and pools in the low spot by the maple tree. One is a risk category. The other is a story you can act on.
Stories That Structure Experience
There is a reason Kelsey’s project resonates beyond the immediate practical benefits. Human beings make sense of the world through narrative. We structure experience into stories—with beginnings, middles, ends, characters, and settings—because stories are how we remember, how we communicate, and how we decide what to do next. A watershed is, in a very real sense, a story waiting to be told. The water moves through a landscape with a logic that can be described, mapped, and shared. When that story remains untold, the water becomes a surprise, a threat, a problem that appears from nowhere. When the story is told, the water becomes something the community can understand and, to some degree, anticipate.
In a way, her notebooks function like a plot generator for the neighborhood’s hidden hydrology, turning scattered observations into a narrative that residents can follow and act on. Kelsey didn’t have a digital tool when she started her mapping project, but she had the same instinct: to find the pattern, to name the parts, to tell the story in a way that others could follow.
What the Official Models Miss
Kelsey’s work exposes a persistent gap in how small cities like Binghamton understand their flood risk. The standard approach relies on computer models that simulate rainfall, runoff, and river levels based on topography, land use, and infrastructure data. These models are powerful, but they are only as good as their inputs. And in older neighborhoods with buried streams, undocumented culverts, and a century of piecemeal development, the inputs are often incomplete.
“The city’s stormwater model assumes that water flows through the pipe system,” said Tom Santangelo, a retired civil engineer who has volunteered with Kelsey on several mapping walks. “But in a lot of these older neighborhoods, the pipes are cracked, or they’re undersized, or they were never connected properly in the first place. The water finds its own path. Margaret’s maps show the actual path.”
That actual path is what matters during a heavy rain. In June 2023, when a series of thunderstorms dropped nearly four inches of rain on Binghamton in 36 hours, Kelsey’s maps predicted which basements would flood with unsettling accuracy. She had documented the flow paths, the choke points, the places where debris accumulates and blocks the water’s route. She had talked to enough neighbors to know who had a sump pump and who didn’t, whose foundation had been sealed and whose hadn’t. When the water came, it followed the routes she had drawn.
“I got a call from a woman on Mary Street the morning after that storm,” Kelsey said. “She said, ‘You told me the water would come through the gap in my retaining wall, and it did. But I put sandbags there like you suggested, and my basement stayed dry.’ That’s the whole point. It’s not about making pretty maps. It’s about giving people information they can use.”
Building Neighborhood Power Through Knowledge
Kelsey’s project is not just about flood preparedness. It is also about power—the power that comes from knowing your place well enough to advocate for it. When a neighborhood understands its own hydrology, it can make demands that are specific, evidence-based, and hard for officials to ignore. It can argue for a particular culvert upgrade, a particular rain garden location, a particular zoning change, because it can show exactly where the water goes and why it matters.
This is a form of sustainability that aligns with the EPA’s core principle: “Everything that we need for our survival and well-being depends, either directly or indirectly, on our natural environment.” (Sustainability | US EPA) Kelsey’s work makes that dependence visible at the scale of a single block. It shows that the natural environment is not something out there, in the forest or the river, but something that moves through the alley behind your garage every time it rains.
It also aligns with the CDC’s definition of healthy places as those “designed and built to improve the quality of life for all people who live, learn, work, play, and worship within their borders.” (About Healthy Places | Healthy Places | CDC) A neighborhood where residents know their water routes is a healthier neighborhood—not just because basements stay drier, but because people are paying attention to the place they share. They notice when a culvert is clogged. They notice when a new development changes the drainage patterns. They notice each other.
How to Start Your Own Neighborhood Water-Story Project
Kelsey is the first to say that her project is replicable. “You don’t need a degree,” she said. “You need boots, a notebook, and a willingness to talk to people.” Here, drawn from her experience, is a practical framework for starting a neighborhood water-story project of your own.
1. Walk your block after a heavy rain. Don’t wait for a flood. Go out during an ordinary downpour, or right after, and watch where the water flows. Follow it. See where it pools, where it disappears into a drain, where it cuts across a lawn or a parking lot. Take photos. Mark the spots on a printed map or a phone app.
2. Talk to the longtime residents. The people who have lived on your block for decades know things that no map will tell you. They remember the stream that used to run through the vacant lot before it was filled in. They know which basements flood and which don’t. They know the stories. Knock on doors. Bring cookies. Listen.
3. Give the water routes names. This sounds whimsical, but it’s practical. A name makes a drainage path discussable. It turns “that wet spot behind the garage” into “Garages Creek,” something you can put on a map and talk about at a meeting. The names don’t have to be official. They just have to be consistent and descriptive.
4. Share what you learn. Bring your maps to neighborhood association meetings. Share them with your city’s engineering or public works department. Post them on a neighborhood social media group. The goal is not to create a private archive but to build shared knowledge that the whole community can use.
5. Update your maps over time. Drainage patterns change. A new building goes up. A culvert gets replaced. A neighbor installs a rain garden. Keep walking, keep watching, keep updating. The map is never finished, and that’s the point.
The Work That Remains
Kelsey is 68, and she knows she won’t be able to walk every alley on the South Side forever. She has started training a small group of neighbors to continue the work—a retired postal worker, a young couple who bought a house on Conklin Avenue, a high school science teacher who lives on Holland Street. She has digitized her maps, with help from a Binghamton University graduate student who scanned her notebooks and georeferenced the flow paths in GIS software. The digital versions are now available to anyone who asks.
But the heart of the project remains analog, personal, and rooted in relationship. “The maps are useful,” Kelsey said, “but the real work is the walking and the talking. It’s knowing your neighbors. It’s paying attention to the place where you live. You can’t outsource that to a computer.”
On the drizzly Tuesday when I walked with her, we ended at a small park near the corner of Vestal and Conklin avenues. A shallow swale ran along the edge of the park, carrying a thin trickle of water toward a storm drain. Kelsey pointed to it. “That’s Park Edge Run,” she said. “It only flows for a few days after a rain, but it’s been flowing in that same path since before this neighborhood was built. The water remembers. The question is whether we remember the water.”
She closed her notebook and tucked it back into her jacket pocket. The rain was picking up. She had more alleys to walk.
