--- title: the rio grande came back canonical_url: https://ensurance.app/guide/the-rio-grande-came-back markdown_url: https://ensurance.app/guide/the-rio-grande-came-back.md subtitle: a rain pulse reconnected the channel. the drought stayed. category: ecosystem-services --- # the rio grande came back *a rain pulse reconnected the channel. the drought stayed.* If you crossed the Paseo del Norte bridge in the middle of September, you looked down at a trickle: 0.47 cubic feet per second on Thursday afternoon, by the irrigation district's reading. The Rio Grande through Albuquerque had run to almost nothing after a long, hot summer. Then it rained in the Jemez, it rained on the mesa, it rained on the city, and by the morning of Friday, September 18, there was a river under the bridge again. That is the short version. The longer one matters if you farm in Valencia County, run a water system in Bernalillo County, sit on a county commission in Socorro, or hold a delivery obligation that says Elephant Butte on it. A rain pulse reconnected the channel. The **Rio Grande drought** stayed. ## what put the water back The Middle Rio Grande Conservancy District, the irrigation district that runs the valley's canals, said what reconnected the river was runoff from three places: the Jemez Mountains, Galisteo Arroyo, and Albuquerque's North Diversion Channel. Mountain, arroyo, city. Three different kinds of catchment, all shedding the same monsoon into one channel at the same time. Near Paseo del Norte, flow went from 0.47 cubic feet per second on Thursday afternoon to 93 cubic feet per second on Friday morning. Jason Casuga, the district's CEO and chief engineer, said the surge moving through Albuquerque could reach about 2,100 cubic feet per second. That last figure was a forecast, not a gage reading. The river went from almost nothing to a modest flow overnight, and the district expected more behind it. The result was a connected channel from Bernalillo to Elephant Butte. The district did not expect the pulse to leave the main channel or threaten Albuquerque's levees or the neighborhoods behind them. The river did, for a few days, what a river does. One safety clause, because people went down to look: rain flows carry logs and debris, and muddy water hides what is under it. That wrecks paddleboards, canoes, and kayaks, and it hurts the people who fall out of them. Walk the bank. Don't float the pulse. ## the drought did not move Here is the sentence to keep, from Casuga: "The scale of this drought is much larger than any small burst of rain events." A rain pulse is not a water supply. Monsoon water runs off hard and arrives in the channel within a day. Without more rain behind it, the same water moves down a long, dry riverbed and goes where September water goes: into the sand, into the air, into Elephant Butte. The district said these were rain flows and might not last. KOAT's report added that some farmers got enough rain directly on their fields to lower irrigation demand for a while. The Rio Grande's year is made in winter, in snow on the San Juan Mountains, not in September on the mesa. The snow side of that story has [its own post](/guide/you-cant-summon-snow-but-you-can-stop-losing-it?from=guide). So hold both things at once. The relief was real. A river that supports farms, wildlife, and the people who walk its banks was connected again after a summer when it wasn't. And the condition underneath that relief did not change. Anyone reading the September pulse as the end of the Rio Grande drought is reading the wrong instrument. ## what the river depends on, and who depends on it The Rio Grande is a 1,896-mile river that was, in early September, in pieces. What put it back together was not the river. It was everything that drains into it. The channel depends on its catchments: the snowpack that feeds it from Colorado, the Jemez that feeds it from the west, the arroyos that cut off the mesa on both sides of the valley, and the concrete channels that carry Albuquerque's street water to the bank. When those deliver, the channel is a river. When they don't, it is a trickle with a name. Who depends on the channel is a longer list, and most of it is public. MRGCD irrigators in four counties, Bernalillo, Sandoval, Valencia, and Socorro, take their water out of it. Six Pueblos inside the district, Cochiti, Santo Domingo, San Felipe, Santa Ana, Sandia, and Isleta, hold prior-and-paramount rights on it that are senior to every other user, and the district delivers to them first. Albuquerque's water utility is a river user as well. Below Elephant Butte, the Rio Grande Project hands the stored water on to farms in southern New Mexico, to El Paso, which gets nearly half its supply from the river, and to Mexico under a 1906 convention. And the Rio Grande Compact asks New Mexico to deliver water into Elephant Butte for Texas on an annual account, which is why water moving toward Elephant Butte is watched well beyond the valley. If you are one of those readers, the point is not that September fixed anything. The point is that the thing you depend on is a channel, and for a few days you could see exactly what feeds it. ## the ditch took the storm too The same rain that put the river back ran into the district's canals. MRGCD's network is about 1,200 miles of canals, laterals, and drains across the four counties, built to deliver irrigation water, not to carry arroyo and street runoff. When that runoff enters a canal it overtops banks, holes crossings, and breaks concrete. The district reported significant maintenance in all four counties, shut some systems for repair, the Cochiti Division and systems in Valencia County among them, and had about 155 field staff out locating damage on banks too muddy to drive. Twelve hundred miles is the size of the system, not the length of the damage, and no repair cost has been published. Who already maintains that ditch, and who should help pay when a storm uses it as a floodway, is a different post: [who maintains an irrigation canal](/guide/who-maintains-an-irrigation-canal?from=guide). This one stays with the river. ## the second pulse was a different story What has been described so far is the first pulse, around September 17 and 18. A second one came on September 29 and 30: late monsoon moisture, the remnants of Hurricane Polo, and Tropical Storm Odalys, on ground that had taken about two weeks of rain. That one was a street, arroyo, and road story. A short closure at Paseo del Norte and Universe in Albuquerque. Dirt roads in Rio Rancho. Arroyo Hondo and private roads in Santa Fe County. Those are [Albuquerque's post](/guide/albuquerque-flooding-was-the-arroyo?from=guide) and [Santa Fe's post](/guide/santa-fe-flooded-from-the-arroyo?from=guide). The same rain has two paths off the mesa. One goes down the arroyo to the street. The other goes down the channel toward Elephant Butte. September showed both, ten days apart. ## the channel is the asset The Rio Grande channel exists whether or not anyone buys anything. So do the arroyos above it and the ditches beside it. What September showed is that the channel is the thing that holds. When water arrives in it, farms downstream get a river and neighborhoods do not get a flood. That holding is the work worth funding: the arroyo that delivers water to the channel instead of the road, the floodplain that lets a pulse spread without taking a lateral with it, the bosque that slows and shades it. That is where **ensurance** comes in. Ensurance funds a named living system before it fails rather than paying after it does. On this river the named system is [rio-grande-river.basin](https://ensurance.app/rio-grande-river.basin?from=guide), a live agent: an account for the mainstem that can hold funds and route them to work on the channel. A line under it, **arroyo channel**, is in ideation; you can [suggest it](/specific/create?mode=suggest&agent=rio-grande-river.basin&name=arroyo%20channel&from=guide) and a person will review it. Who would pay for that work, and by what unit, is the irrigation-canal post's question, not this one's. It is not the emergency order the state signs, not the North Diversion Channel that AMAFCA already runs, not the grader a county sends to a washed-out crossing, and not anyone's tap. The district's crews on the canal banks and the channels that carried the water did September's work. A certificate is a second layer that pays for the living channel they depend on. Nobody who reads this needs to buy anything to have a river. :::johnson **a rain pulse is not a water supply.** The Rio Grande ran connected from Bernalillo to Elephant Butte for as long as the rain held. The drought under it did not move. The channel that carried the pulse is the thing worth funding. [see the river's live agent →](https://ensurance.app/rio-grande-river.basin?from=guide) ::: ## frequently asked questions ### is the rio grande drought over? No. The September 2026 rain reconnected the Rio Grande from Bernalillo to Elephant Butte for a short time, but the Middle Rio Grande Conservancy District said the drought is much larger than any burst of rain. Rain flows arrive fast and leave fast. The river's supply is set by winter snowpack and the season that follows, not by one monsoon week. ### why did the rio grande start flowing in albuquerque? Monsoon runoff from three sources, the Jemez Mountains, Galisteo Arroyo, and the North Diversion Channel, reached the channel around September 17 and 18, 2026. Near Paseo del Norte, flow rose from 0.47 cubic feet per second to 93 cubic feet per second overnight, and the district said the surge could reach about 2,100 cubic feet per second. The flow stayed in the main channel. ### what is a rain pulse? A rain pulse is a short rise in river flow produced by storm runoff rather than by snowmelt or a reservoir release. It arrives within hours or a day of the rain, peaks quickly, and recedes as soon as the runoff stops. In a dry channel it can reconnect a river for days. It does not refill the aquifer, the reservoir, or the year. ## read next The second pulse hit Santa Fe hardest, and the part that flooded was not the water the city drinks: [santa fe flooded from the arroyo](/guide/santa-fe-flooded-from-the-arroyo?from=guide). The river itself is already an account. See what is on it: [rio-grande-river.basin](https://ensurance.app/rio-grande-river.basin?from=guide). ## sources [KOAT, Aliyah Chavez, updated September 18, 2026](https://www.koat.com/article/recent-rain-restores-rio-grande-flows-but-officials-say-drought-remains/73796076) — Jason Casuga on the reconnect, the three inflows, the 0.47 to 93 cfs pair, the possible 2,100 cfs surge, the drought sentence, the canal network, shut systems, field staff, and the paddler debris warning [Bureau of Reclamation, Rio Grande Basin SECURE Water Act report, 2021](https://www.usbr.gov/climate/secure/docs/2021secure/basinreports/RioGrandeBasin.pdf) — river length and basin extent [Middle Rio Grande Conservancy District, farmers meeting FAQ](https://www.mrgcd.com/farmers-meeting-faq/) — prior-and-paramount deliveries to the six Pueblos and Rio Grande Compact storage limits [El Paso Water, Rio Grande and Elephant Butte](https://www.epwater.org/our-water/water-resources/rio-grande-and-elephant-butte) — share of El Paso supply from the river [Santa Fe New Mexican, Cormac Dodd, September 29, 2026](https://www.santafenewmexican.com/news/local_news/floodwaters-strike-across-new-mexico-with-more-rain-in-the-forecast/article_6b6eab79-e205-45f2-b4c8-5db1c8aa8943.html) — second pulse: late monsoon, Polo remnants, Tropical Storm Odalys, saturated ground [AMAFCA facilities](https://amafca.org/amafca-facilities/) — who maintains the North Diversion Channel ## the series 1. [what an arroyo actually is](/guide/what-an-arroyo-actually-is?from=guide) 2. [albuquerque flooding was the arroyo](/guide/albuquerque-flooding-was-the-arroyo?from=guide) 3. the rio grande came back — this post 4. [santa fe flooded from the arroyo](/guide/santa-fe-flooded-from-the-arroyo?from=guide) 5. [who maintains an irrigation canal](/guide/who-maintains-an-irrigation-canal?from=guide)