At the Ford Amphitheater, the Complaints Track the Wind

Since the Ford Amphitheater opened in August 2024, residents north of it have filed thousands of noise complaints with the city and on a resident-run map, the venue has built two additional sound walls and rebuilt its speaker system, and the City of Colorado Springs has issued two hardship permits allowing the site to run above ordinary decibel limits inside the Polaris Pointe area. The Monument Independent joined that map to hour-by-hour weather for every performance the venue has held. Two things travel with the complaints. Neither is the mitigation. One is which way the wind was blowing; the other is what kind of music was playing.

The pattern

The Ford Amphitheater has held 62 performances since August 2024 — 59 concerts and three comedy shows, counting a private soft opening. The resident-run complaint map did not exist for the first twelve of them, so those dates carry no submissions for a reason that has nothing to do with sound. Everything below is computed on the 50 dates the map was open for, which is the only honest comparison available.

Across those 50 dates, the thing that travels most closely with complaint volume is the component of the wind blowing from the venue toward the neighborhoods that complain — a rank correlation of +0.43.

What makes that number worth reporting is the company it keeps. Measured the same way, raw wind speed travels with nothing at all (+0.03). Neither does cloud cover or temperature. This matters because the obvious alternative explanation is comfort: a pleasant summer evening brings people outdoors, and people outdoors hear more. If complaints were tracking nice weather, warmth and calm and clear skies would show up. They do not. Only the directional term moves — which is what acoustics predicts, because sound bends downward when it travels downwind and carries farther before it dissipates.

The finding does not depend on the weather model. Recomputed from Air Force Academy airfield observations alone — published hourly readings from a station five kilometers south, no model involved — the correlation is +0.41, and observed wind speed still travels with nothing (+0.03). A reader who distrusts modeled weather can discard it and reach the same place.

The gap between the two kinds of night is large. On the 29 downwind dates, the venue averaged 21.0 submissions, median 18. On the 21 upwind dates, 3.7, median 1.

It survives the obvious stress tests. Remove the single largest night and the correlation is +0.39. Restrict to 2025, the best-documented season, and it rises to +0.57.

A temperature inversion — air aloft warmer than air at the surface, which refracts sound back toward the ground — appears to add to the effect, though this is the weakest limb of the analysis and is presented as context rather than as a finding:

Wind separates the rows in both columns and inversion separates the columns in both rows, which is what “these compound” would look like. But two of those four cells rest on five or six dates, inversion on its own does not reach statistical significance, and unlike the wind figures it could not be checked against any observation — the airport reports temperature at the surface, not at eighty meters. It is consistent with the physics and it is not established.

There is a second pattern, largely separate from the wind, and it is not one the mitigation was designed to address: the low-frequency content of the music being played. That is set out below.

How the venue was approved

Notes Live, the Colorado Springs company then run by chairman and chief executive J.W. Roth, proposed the 8,000-seat Sunset Amphitheater — later renamed for the Ford dealership group that bought naming rights — at Polaris Pointe, off Voyager Parkway and North Gate Boulevard. The city’s Planning Commission approved the plans on November 9, 2022.

Nine days later, a group of homeowners including the Greyhawk at Northgate Homeowners Association appealed. Their filing argued the project would violate city noise and parking ordinances and was incompatible with the surrounding neighborhoods. City Council postponed the matter on December 13 and took it up again on January 10, 2023.

The hearing ran past midnight. At 12:45 a.m. the council voted 8–1 to deny the appeal. Dave Donelson, then representing District 1, cast the only vote to uphold it.

The record from that night is worth reading against what followed. Notes Live told the council the amphitheater would generate $100 million a year for Colorado Springs and create 500 jobs. It had secured more than 3,000 parking spaces — a thousand more than the city required — through agreements with Bass Pro Shops, The Classical Academy and Compassion International. Chris Lieber, the project’s consultant manager, told the council the nearest neighborhood was three-quarters of a mile away. Roth said sound checks would not begin before 3 p.m., to avoid disrupting the school next door.

On sound specifically, Notes Live said it would build acoustical walls on the venue’s east side if no development had been built there before the amphitheater opened — a conditional commitment, not a fixed one.

Katherine Gayle, one of the appellants, told the council she was a former DJ and did not object to the amphitheater itself. “It’s creating three huge problems for the neighboring businesses and the residential areas around,” she said, listing parking, traffic, public safety and “noise which is medically dangerous.”

The land-use entitlement work was handled by NES Inc., which the city’s own case record for PUD 22-00062 lists as the applicant’s representative.

The 47-decibel promise

The acoustic case put to the city came from LSTN Consultants, in a preconstruction assessment dated September 13, 2022 and addressed to Robert B. Mudd, then Notes Live’s president and chief operating officer. It was the applicant’s package, not an independent study.

Its central table modeled a residence 3,500 feet northeast of the stage. For a front-of-house sound level of 100 dBA, it predicted 64 dBA at that home unmitigated, 61 with electroacoustic controls, and 47 dBA with the full package of mitigation. That 47-decibel figure carried into the planned unit development and became the public commitment.

The same document proposed operating controls permitting front-of-house levels of 105 dBA Leq, with maximums to 110 dBA — five to ten decibels above the source level the 47 dBA prediction assumed. Sound intensity roughly doubles for every three decibels. The Colorado Supreme Court, in a 2025 opinion discussed below, quoted an earlier case putting it plainly: a three-decibel increase is a 100% increase in sound level, and ten decibels a 1,000% increase.

That gap between the modeled source and the permitted source is the central criticism in the resident-commissioned technical review, and it has never been publicly reconciled.

Opening, and the first thousand complaints

The amphitheater soft-opened on August 6, 2024 and debuted on August 9. By Monday, August 12, residents had filed 144 complaints with the city. By late August, according to Colorado Public Radio, the figure was roughly 900.

City Council heard about three hours of public testimony that month. Council President Randy Helms, who lives near the venue, told the room that “the citizens that are here today are speaking truth.” Donelson, the lone 2023 no vote, said he did not care “if it brings in $500 million in revenue.”

By late September 2025, Colorado Politics reported 1,469 complaints filed through the city’s GoCOS system that year, with seven concerts since May each drawing at least 100. More than 900 of those complaints recorded no address where the noise was heard and more than 700 gave no contact information — a data-quality problem that has shaped everything the city has been able to say since.

What the reports describe

The complaint record is more than a set of coordinates. Of the 737 cleaned reports, 630 carry a written description.

Before quoting any of them, the limits of this source need stating. It is a self-selected record. The map is operated by residents opposed to the venue’s current operations, and nobody untroubled by the amphitheater has any reason to file on it. It can establish what the people who complain are experiencing and where they live, and it can be tested against weather. It cannot establish how many of their neighbors are unbothered, and nothing in it should be read as measuring opinion in the surrounding neighborhoods. Filers are anonymous; this newspaper identifies reports by distance and date only.

The city’s own data shows why that distinction matters. Of the roughly 1,700 complaints Colorado Springs logged about the venue in 2025, city figures reported by 719 Magazine show that among complaints that included contact information, 61 individuals accounted for nearly half the total. A determined minority can generate a large number. That cuts both ways: it means complaint volume overstates how many households are affected, and it means those households are affected enough to file repeatedly for two years.

Read together, a recurring theme runs through those 630 descriptions, and it is not the volume of the music. It is the bass, and the fact that it comes indoors.

A hundred and thirty-nine mention bass, thumping, rumbling or vibration by name and 153 describe hearing the venue inside the house, with 109 specifically noting that their windows were shut — a detail residents offer as evidence rather than as grievance. That is a substantial minority of the written descriptions rather than a consensus, but no other theme comes close to it.

“Our windows/doors are closed, we have the TV on and can hear the music over it. The walls are vibrating. Very heavy bass, hard to drown out.” — 0.9 miles from the stage, Oct. 2, 2024

“We get extremes inside. Either we can barely hear it with windows closed or else it’s so loud that we can feel the bass reverberating through our furniture. Outside, we can hear it pretty clearly.” — 0.8 miles, Sept. 9, 2024

Fifty-three reports describe lost sleep, and 19 mention children.

“Since we don’t have A/C, we’re dependent on open windows for cooling. Some nights it is too loud to sleep.” — 1.3 miles, Sept. 21, 2024

“Very loud outdoors. My windows are noticeably shaking indoors from the bass. Hopefully I can get my toddler to sleep in a few minutes.” — 1.2 miles, Oct. 17, 2024

One resident has described that effect on the record. Marianna Bailey, who lives about two miles from the venue and is among the plaintiffs in the lawsuit discussed below, told 719 Magazine in January that concert noise affects her 23-year-old son, who has level 3 autism. “He can’t communicate when something hurts, so we have to try to manage it for him,” she said. “On concert nights, he barely sleeps.” She told the magazine she manages it with noise-canceling headphones, medication adjustments and a sensory room.

Another plaintiff, Danielle Frye, lives about a mile out and recorded 71.7 dBA during a September 2025 concert. Her framing is worth quoting because it is not the one the venue’s defenders usually attribute to complainants: “I don’t want them to tear it down. I recognize it could be an asset to our community and that it brings economic benefits. Turn it down, not tear it down.”

Eighty-nine reports include an outdoor sound-level reading taken by the resident, with a median of 65 dBA; 37 include an indoor reading, median 59 dBA. The map has no field for the instrument used, and only six submissions across three seasons name one, so this newspaper excluded these readings from its analysis: their calibration and method cannot be verified. Their existence is nonetheless telling. People two miles from a concert venue are standing in their yards with sound meters.

One observation in the file is worth flagging because the resident arrived at it independently of any analysis. Filed Aug. 2, 2026 from 2.5 miles away: “Calm evenings with light breeze from the south is always worse.” That is, in plain language, the central statistical finding of this story. The venue sits south of the neighborhoods that complain, and a southerly breeze is the wind that carries sound to them.

Another, from 2.6 miles out, is the complaint underneath the complaints: “Moved here 23 years ago because of the quiet peaceful neighborhood. The amplitheatre [sic] has stolen that I must ask…are we being heard?”

What the measurements found

Three bodies of measurement exist. They do not agree about much, but they agree about one thing.

The city’s study. Hankard Environmental measured three concerts in October 2024 for the City of Colorado Springs — Foreigner on the 2nd, Ivan Cornejo on the 4th, Godsmack on the 17th — at 21, 10 and 12 community locations respectively, using Type 1 meters. It found concert-attributable levels in the community of 43 to 60 dBA. At the Polaris Junction apartments it recorded 65 dBA during a piano solo and 69 dBA with the full band, but excluded that location from its community range on the grounds that the apartments “were developed with knowledge of the Facility.”

Front-of-house levels stayed within the permitted structure as written. But at Godsmack, the 40 Hz one-third octave band reached 128 dB against a 125 dB limit — five times, twice within a single five-minute window. Hankard characterized this as “an imperceptible increase” and not material to the complaints.

The residents’ review. Dana Lodico, a board-certified acoustical engineer at Dudek, was retained through Covenant Law on residents’ behalf. Her August 2024 field memo measured 11 sites. During OneRepublic on August 11, event-attributable levels could be calculated at five of nine short-term sites; three exceeded 50 dBA over the full performance, five during the loudest five minutes. Events ran 3 to 8 dB above background over a performance and 8 to 13 dB above during the loudest five minutes.

Her July 2025 peer review is the sharper document. It found that no disclosed sound modeling supports the barrier claims — nothing in the record describes the propagation method or substantiates the claimed 14 dB overall and 11–12 dB low-frequency reduction, which she called possibly unrealistic at 3,500 feet for homes sitting 100 to 300 feet higher than the venue. It identified an arithmetic problem in the applicant’s package: LSTN’s 2022 study attributed a roughly 47 dB venue-to-residence level difference to an earlier Merck & Hill study, but Merck & Hill’s own figure shows 38 dB. Applying 38 dB to permitted front-of-house levels yields 67 and 72 dBA at residences.

It also argued that the operative nighttime residential limit should be 45 dBA rather than 50 — city code §9.8.106 makes periodic, impulsive or shrill noise unlawful five decibels below the §9.8.104 limits, and concert music is periodic. That reading has not been tested; it is a legal question, and an open one.

And it found the monitoring itself poorly sited. Two of the venue’s stations sit on commercial rooftops with parking-lot activity, adjacent outdoor amplified music and roof mechanical equipment. The three residential stations sit 4,350, 6,450 and 7,900 feet out — with homes as much as 3,500 feet closer to the venue than the monitors meant to represent them.

The venue’s own reporting. LSTN’s annual report for the 2025 season covers 30 scheduled performances, 28 of them held. It documents three front-of-house exceedances — all three in the 40 Hz band, two of them after 10 p.m. Its per-show appendix consists of graphs only: no numeric tables and no low-frequency charts. A reader looking for the low-frequency data will find it discussed in the narrative and plotted nowhere.

What was built, and when

Venu’s mitigation ran on a documented schedule.

The January 2025 agreement is the operative document. It set a penalty trigger of 6 dB(A) above the limit at two or more stations simultaneously, with $500 per occurrence as liquidated damages. Dudek noted that figure against a projected per-event economic impact of about $2.9 million, and against a comparable venue — White Oak Music Hall in Houston — where the equivalent runs up to $15,000.

The permit also cut the venue’s hours below what it asked for. The application requested 11:30 p.m. daily; the permit granted 10:30 p.m. Monday through Thursday, 11 p.m. Friday and Saturday, and 10:30 p.m. Sunday.

How completion was documented. Venu completed the additional walls, the entrance tunnels, the sound-system reconfiguration and the expanded monitoring before the 2025 season. The sound curtains, absorption panels, relocated subwoofers and modified hours that appeared in the October 2024 presentation are proposals; the public record does not establish that each was installed. Completion is city reporting, not independent verification — no document in the file records an inspection confirming that what was built matched the approved drawings.

Whether it worked

This is where the analysis gets careful, because the obvious approach produces a wrong answer.

Comparing September 9 to October 17 across 2024 and 2025 on the resident-run complaint map, complaints fell 54%. Remove a single night — Godsmack on October 17, 2024, which drew 99 reports that night — and the decline shrinks to 24%. One show swings the result thirty points.

Worse, the crowdsourced map launched on September 8, 2024, a month into a twenty-show season. Twelve of the 22 pre-mitigation events predate the map’s existence and record zero complaints for a reason that has nothing to do with sound. Only ten usable pre-mitigation events remain, five of them downwind. Any before-and-after built on this dataset is built on ten nights. The Monument Independent does not use the 54% figure, and it should not be cited from this reporting.

What the complaint data does support is geography, which is far less sensitive to how many people happen to be reporting.

North and northeast account for 77%, 82% and 84% of complaints across the three seasons. That pattern has not moved. The 2026 season was still running when these figures were compiled.

Controlling for weather sharpens the question without answering it.

Post-mitigation seasons were, if anything, more favorable to sound propagation than the pre-mitigation period: the downwind share ran 50% before mitigation, 57% in 2025 and 67% in 2026. Comparing like with like — downwind dates only — the pre-mitigation dates averaged 26.8 submissions and the post-mitigation dates 19.8, a difference nowhere near statistical significance (Mann-Whitney p=0.36). That pre-mitigation average rests on five dates, one of which is Godsmack; exclude it and the average falls to 4.2 and the comparison points the other way.

Run the test directly and the mitigation era does not separate from the noise: submissions against mitigation era, controlling for wind direction, rho +0.14 (p=0.32). Submissions against wind direction, controlling for era, rho +0.43 (p=0.002).

That is a null result on a sample too small to have found much else, and it should be read that way. Five usable pre-mitigation downwind dates cannot detect anything but an enormous effect. This analysis did not detect a change in submission volume after mitigation. It is not evidence that the walls, tunnels and rebuilt sound system did nothing — a real reduction at the property line could easily hide inside a sample this size, and the front-of-house record above suggests the work did change some things. What can be said is narrower and still worth saying: three seasons on, the public data shows no drop in how often people are moved to complain, and the measurements that would answer it have not been released.

Two further patterns point the same way, with an important caveat. The downwind penalty — the ratio of average submissions on downwind dates to upwind dates — widened across the three seasons, from 4.2× to 5.9× to 15.4×. Reported severity also rose: the share of submissions at the maximum outdoor nuisance score went from 71% to 74% to 87%.

These ratios rest on very few dates each — five against five in 2024, eight against four in 2026 — and the 2024 figure covers only the part of that season the map was open for. They are suggestive, not conclusive.

The caveat is real. Both patterns are equally consistent with the reporting population becoming more self-selected over time — casual complainants dropping away, leaving only the most affected. These data cannot separate the two explanations, and this reporting does not claim to.

The 40 Hz problem

One comparison comes closer to controlled than anything else in this record, though it is not clean either. Front-of-house measurements were taken at the same position in both seasons by consultants using Class 1 instruments.

In 2024, Hankard found one exceedance: the 40 Hz band at Godsmack. In 2025, LSTN reported three exceedance windows across two performances — one on June 13 and two on August 19 — and all three were in the 40 Hz band.

The two seasons are not like-for-like, and the differences should be stated plainly. Hankard measured the 40 Hz one-third octave band as an instantaneous maximum against a 125 dB limit; LSTN measured it as a five-minute Leq against a 115 dB limit. That is a different metric against a threshold ten decibels apart. And the denominators differ enormously: one exceedance across three measured concerts in 2024, three windows across 28 performances in 2025. Nobody should read those counts as a rate, or compare them as though they were.

What survives all of that is the frequency. Whatever the metric, whatever the threshold, the band that went over was the same band both years — and it is the band residents describe.

After a season of design work, roughly $2 million in mitigation by the venue’s counsel’s account, two new walls, entrance tunnels and a reconfigured sound system, the exceedances that remained were in the same frequency band as the year before.

There is a physical reason this would be so, though the two consultants do not fully agree about it. Standard barriers do not typically provide substantial reduction below 125 Hz; they work best close to the source and at or below grade, while these homes sit 3,500 feet out and 100 to 300 feet higher. LSTN’s 2022 assessment states that “low frequency sounds are the hardest to reduce at distance” — but goes on to say barriers are nonetheless the most effective means of attenuating them, which is the claim Dudek’s peer review disputes. The area of agreement is that distance and low frequency are the hard combination; the disagreement is over what a wall can do about it.

The fair framing is not that the mitigation failed. It is that the mitigation was largely barrier and directivity work, most effective at mid and high frequencies, and the measured exceedances in both seasons fell in the low-frequency band where barriers do least — which is also the band residents describe.

The night everything converged

October 17, 2024 is the single most informative night in the record, and it illustrates why weather belongs in this story.

Godsmack drew 117 complaints across that day and the next, the highest of any event in the dataset. It also had the highest downwind component of any 2024 event — a mean of 6.22 m/s and a peak of 9.64 m/s, from due south, straight toward the northern neighborhoods. A surface temperature inversion was present for three of the five event hours. It is the night Hankard independently measured as the loudest of its three, and the night that produced the only documented 40 Hz exceedance of 2024.

There is a discrepancy in that night’s record worth putting to the city. Hankard’s report describes “steady wind from the south at 3 to 5 miles per hour.” The nearest official reporting station — the Air Force Academy airfield, roughly five kilometers south — recorded sustained winds of 15 to 21 miles per hour from 140 to 200 degrees during the same hours. Both agree on direction. They differ three- to five-fold on speed.

Both figures can be technically correct: Hankard measured at ground level at its microphone positions, while the airfield uses standard 10-meter open exposure. But city code §9.8.103.B.2 conditions valid sound-level measurement on wind velocity “not more than five miles per hour, or twenty-five miles per hour with a windscreen,” so which exposure the 3-to-5 figure describes, and whether a windscreen was in use, are questions with regulatory weight. The Monument Independent has put both to the city.

The weather analysis also speaks to a gap Hankard flagged in its own report, which states that inversions “cannot be measured directly by our staff, so we are unsure if they existed during the measurements.” Modeled temperatures at two and eighty meters indicate a surface inversion for three of the five event hours that night. That is a modeled indication, not a measurement, and no public observation exists to confirm it — the nearest airport reports temperature at the surface only, and the nearest weather balloon launches sixty miles away in Denver, hours before showtime. It is worth stating because nobody measured it and the condition matters acoustically, not because it proves anything.

The second variable: what is playing

Wind is not the only thing that predicts a bad night. So does the music.

Sorting the 50 dates by the low-frequency content typical of the act’s genre produces a correlation with complaint volume of +0.51 — in this sample, slightly stronger than the wind term. And the two are largely, though not entirely, separate. Controlling for genre, wind still tracks complaints at +0.34; controlling for wind, genre still tracks them at +0.40. They are not the same pattern measured twice.

They are not fully independent either, and the reason matters. Bass-heavy acts at this venue have tended to land on nights that turned out to be downwind — the two travel together at +0.32 across the sample, and more strongly within a single season. With 50 dates there is no way to fully separate them, and this newspaper does not claim to have done so. What the data supports is that each carries information the other does not, and that a night which is both is the worst kind.

The categories are not this newspaper’s invention. They come from a 2024 paper in the Proceedings of the Institute of Acoustics by Fiumicelli, Parker, Lawrence and Stewart, which measured octave-band spectra at outdoor concerts and reported the difference between C-weighted and A-weighted sound levels by genre. That difference, written LC−LA, is the standard index of how much of a sound is bass. Normalized to the same A-weighted level, the paper found dance and electronic music running about 18 dB of low-frequency excess and urban and hip-hop about 16 dB, with pop and rock together at about 12 dB. Acoustic, orchestral and spoken-word programming is not in the paper; this newspaper scores it lower on the reasoning that it carries markedly less amplified low-frequency energy, and that assumption is its own, not the authors’.

The venue’s own complaint record broadly follows that ordering. Median submissions across the 50 dates ran 21 for urban and hip-hop (six shows), 17.5 for dance and electronic (two), 8 for pop (16), 3 for alternative and rock (17), and 0 for acoustic, orchestral and comedy bookings (nine). Two cautions. The top two categories rest on very few shows, so those medians are indicative rather than precise. And the paper assigns pop and rock the same low-frequency figure — the gap between 8 and 3 in the complaint record is this venue’s pattern, not something the research predicts.

The bottom of that table deserves emphasis, because it cuts against the intuitive reading of this story. Rock is not the loud category — not in the research, which places alternative and rock level with pop and below urban and dance, and not in this venue’s complaint record, where rock sits second from the bottom by median. The single worst night here was a metal show, and it is easy to conclude from it that heavy guitar music is the problem. Godsmack drew 117 submissions on a date that also had the most extreme propagation conditions in three seasons — wind hard from due south, inversion overhead. Which of those did the work, and in what proportion, is not something one night can answer. Elsewhere in the record, Yo-Yo Ma drew three submissions on a night the wind was carrying, and three comedy bookings and two Fourth of July symphony programs drew none at all.

The clearest illustration runs the other way, and it is worth stating because it cuts against this story’s own headline. O.A.R., on June 18, 2026, had the most strongly downwind conditions of the entire 2026 season — and drew zero complaints. It was also the only downwind night that season with no temperature inversion, and the act is a mid-range rock booking. One night proves nothing on its own. But it is a reminder that these are tendencies across 50 dates, not a mechanism that fires every time, and any reader told otherwise is being oversold.

This matters for the remedy, because it points at the same gap as everything else in this story. The January 2025 agreement and the monitoring that enforces it are written in A-weighted decibels, a scale designed to approximate human hearing that deliberately discounts low frequencies — at 40 Hz, A-weighting subtracts roughly 34 dB. A show can therefore sit comfortably inside an A-weighted limit while producing exactly the bass energy that residents describe coming through their walls, and that the measured exceedances in both seasons landed in.

The Institute of Acoustics paper makes this point directly: it recommends that outdoor concert noise be assessed with C-weighted or octave-band criteria precisely because A-weighted limits do not capture the component that generates complaints. The city’s agreement contains a 40 Hz one-third octave band limit at front of house, which is the right kind of instrument. It contains no low-frequency criterion at any of the residential monitoring stations, which is where residents live.

A published standard for such a criterion exists, and the residents’ consultant named it. Dudek’s July 2025 peer review recommends applying ANSI S12.9 Parts 4 and 5, which puts the threshold of minimal annoyance at 65 dB in the 16 and 31.5 Hz octave bands and 70 dB at 63 Hz, and notes that above 80 dB outdoors in those bands audible building rattle becomes likely. The standard carries a caveat that reads as though drafted for this dispute: low-frequency sources “characterized by rapidly fluctuating amplitude, such as rhythm instruments for popular music, may cause annoyance when these octave-band sound pressure levels are lower.”

Genre classification is editorial judgment applied to a published research framework, not a measurement. The Monument Independent publishes the category assigned to every act in its Ford Amphitheater sound forecast so that readers can check the call.

The legal ground shifts

This is the second time residents have taken the venue to court, and the first attempt explains a good deal about the second.

In September 2023, before the amphitheater opened, the Northside Neighbors Association sued Notes Live, Inc., Notes Live Real Estate and Development LLC and the City of Colorado Springs — Northside Neighbors Association v. Notes Live, Inc., No. 2023CV31839. That suit went at the permits themselves. It argued that the city’s noise ordinance provision for “hardship permits” was prohibited by state law outright, and that city officials had established what the complaint called a “behind-the-scenes policy of granting ‘blanket hardship permits'” to the venue annually. It asked the court to declare the hardship-permit provisions illegal and enjoin the venue’s operation unless it could show compliance with state noise law.

The El Paso County District Court dismissed it, holding that the city’s local ordinance and its hardship permits took precedence over state law. The Court of Appeals affirmed on September 12, 2024 — a month after the venue opened — but on different reasoning. The claims rested on “future and contingent” facts, the court held: the amphitheater had barely started operating and the alleged harm had not yet occurred.

The court told the neighbors to come back when it had. As KOAA reported at the time, the judge said residents should file another lawsuit if and when noise violations actually happened.

Sixteen months later, with two seasons of readings in hand, they did. That is the direct line between the two cases, and it is why the 2026 complaint reads as a catalog of specific concerts and specific decibel levels rather than as a challenge to the permit scheme. The first suit was thrown out for being too early. The second was built to answer that objection.

Something else happened in between. While the Northside appeal was pending, one division of the Court of Appeals decided Freed v. Bonfire Entertainment and held that state noise law overrides local excess-noise permits. A different division decided Hobbs v. City of Salida the other way. Two divisions of the same court had split on the same question, which is the classic route to Supreme Court review. Northside filed an amicus brief supporting the Hobbs petition. Notes Live filed one on the other side.

On September 8, 2025, the Colorado Supreme Court decided Hobbs v. City of Salida unanimously. It held that the state Noise Abatement Act’s exemption for lessees, licensees and permittees applies only when the use is associated with a primary entity’s use of the property. A municipal permit alone does not exempt a for-profit venue operating on private property from statewide limits.

Notes Live and Venu Holding filed as amicus curiae in that case, represented by Tobin D. Kern of Kern Law — the same attorney who has publicly defended the venue, telling Colorado Politics that the Dudek report was “making up new rules.”

The legislature tried to reverse the effect. Senate Bill 26-098 would have exempted use of property under a local permit that addresses sound. It passed the Senate 30–4 on third reading on March 18, 2026. In House Transportation, Housing and Local Government on April 14, a motion to refer it failed 6–7, and the bill was postponed indefinitely 7–6. It died by a single vote, not for want of support.

On January 21, 2026, eight residents sued in El Paso County District Court, represented by the Colorado Springs firm First & Fourteenth. The defendants are Notes Live, the nonprofit Notes Live Foundation, and Sunset Amphitheater LLC, which owns the building.

The claim is public nuisance premised on repeated violation of the state Noise Abatement Act, and it builds directly on Hobbs: the complaint describes for-profit entities “as lessees and sublessees” using the property to host concerts emitting unlawful noise. The plaintiffs cite three concerts in 2024 and at least eight in 2025 at which they recorded 60 dB or louder at their homes, with some submitted recordings reaching 71 dB — hand-held resident measurements, not calibrated instrumentation. They live in Northgate Highlands, Northgate Estates and Gleneagle, and in unincorporated El Paso County, some as far as two miles from the stage; their homes were bought between 2002 and 2019, all of them before the venue opened. Two plaintiffs have children with special needs. The suit asks the court to bar future noise pollution, potentially by enjoining future concerts, and seeks enforcement of the state limits rather than damages.

The complaint’s own framing of the harm is worth quoting, because it is not only about decibels: plaintiffs “especially those with young children, are concerned about using their outdoor spaces or opening their windows or doors during concerts, thereby exposing themselves and their families to invasive, expletive-laced lyrics at levels exceeding statewide standards.”

That geography is worth pausing on. It matches what the complaint data shows independently: this is not a fence-line dispute. The median complaint in the crowdsourced set sits between 1.75 and 2.15 miles from the venue depending on the season, and the plaintiffs’ addresses fall inside that band.

Roth, in a statement reported by the Gazette, said the company took “community concerns seriously” while disagreeing with the claims, and that “the complaint is grounded in a state noise statute which we believe does not apply to Ford Amphitheater based on how the venue is structured.” Separately, asked about the suit by 719 Magazine, he was blunter: “I don’t mean to sound dismissive. But this isn’t concerning to me.” He told the magazine the company had spent millions on sound walls on the east, north and south sides of the venue. VENU says the amphitheater has drawn more than 200,000 concertgoers and projects a billion dollars in economic impact for Colorado Springs by 2034.

That last point about structure matters, because the structure changed four months after the lawsuit was filed.

First, the names. The two that appear in this dispute belong to one organization. Colorado Secretary of State filings show Notes Live Foundation registered on February 14, 2024, with J.W. Roth as sole incorporator and registered agent, and “Venu Arts & Culture Foundation” recorded as a trade name of the same entity on October 22, 2024. VENU’s own SEC filings describe it exactly that way: “Notes Live Foundation, a non-profit organization operating under the trade name Venu Arts & Culture Foundation.” The lawsuit uses the legal name. The city uses the trade name.

The venue’s legal position is on the record. In a May 1, 2026 opinion letter to the Colorado Springs Police Department, Tobin D. Kern wrote that the amphitheater “operates under a lease agreement with the Venu Arts & Culture Foundation… that uses the property to host and promote concerts” — the arrangement that, in his reading, places the venue inside the Hobbs exemption rather than outside it.

Ten days after that letter, the arrangement was rebuilt. A Form 8-K filed June 11 discloses that on May 11, 2026, VENU and AEG Presents terminated the three agreements that had governed the amphitheater since 2023 — an exclusive operating agreement between Sunset Operations and AEG, an operations lease between Sunset Amphitheater LLC and the Foundation, and an operations sublease between the Foundation and Sunset Operations — and replaced them with two new ones. Under the new structure, Sunset Amphitheater LLC is landlord and the Foundation and Sunset Operations are co-tenants; those two in turn are landlords to AEG Presents, which continues to operate the venue.

VENU’s own characterization is the notable part. The new agreements “restructure the form of the contractual relationships among the parties,” the filing states, but “substantially preserve the economic and operational terms” of the old ones. AEG continues to run the amphitheater on substantially similar fees, and the company “does not expect the Restructuring to have a material impact on the operations of the Ford Amphitheater.”

So the legal form of who leases what to whom was rearranged; by the company’s account, what actually happens at the venue was not. Because Hobbs turns on whether a for-profit use is associated with a qualifying primary entity’s use of the property, the arrangement of those leases is precisely what the exemption question runs through. Whether a court reads the new structure as bringing the venue inside the exemption, and what it makes of a restructuring executed while the suit was pending, is the live issue in this case.

The city’s May 6 permit announcement — five days before the restructuring — described the older arrangement.

What has not been measured

In August 2024, before mitigation, Venu published readings from ten neighborhood locations — ambient against concert levels for August 23 and 24. Hankard measured 10 to 21 community locations that October. Those are the only public measurements of what this venue produces at the places people live.

Nobody has re-measured them. In May 2025 the city said its contracted third-party firm “will measure sound from six total shows this season” and had, to date, measured April 30 and May 5. Those two remain the only third-party reports posted. Both are single-page charts at fixed monitor positions, not community transects. A like-for-like acoustic comparison requires the same receptors under comparable propagation conditions. That measurement has either never been taken or never been released.

What the city did post was a series of twelve per-show summaries built from the venue’s own monitoring, running from April 30 through August 16, 2025, giving pre-show ambient levels and the resulting threshold at each remote station. They are terse, and one of them is more interesting than it first appears.

The May 9 summary discloses an exceedance. “While there was an instance where sound exceeded the dB(A)Leq threshold,” it reads, “this event does not align with the timelines or data from other monitoring stations or front of house, suggesting the influence of extraneous factors, such as sound from a motorcycle, emergency vehicle, etc.”

That note is not unique to May 9. The city’s project page carries the same wording against April 30 and May 5 as well — all three of the first three shows after mitigation was completed. On April 30, the opening night, the city’s own third-party contractor separately annotated its chart “Potential exceedance of 6 dBA above ambient limit.” Each was attributed to something other than the venue.

The attribution may well be right in both cases. But it lands on the precise weakness the residents’ consultant identified: two of the monitoring stations sit on commercial rooftops beside parking lots, roadways, roof mechanical equipment and other businesses’ outdoor amplified music — and she found that the filtering of extraneous sources the January 2025 agreement requires “does not appear” to be occurring. A monitoring network that registers passing motorcycles is a network whose exceedances can always be attributed to passing motorcycles. Without the underlying one-second data, no reader can check either determination.

There is a further wrinkle in how any such determination gets made. The state Noise Abatement Act limits the sound a source produces. The monitoring at Ford reports the total at each station — the concert plus everything else in the air that evening. The two are joined by logarithmic addition rather than plain subtraction: two equal sources of 45 dBA combine to 48, not 90. That has a consequence for enforcement. The higher the figure taken as the pre-show ambient, the higher the total a lawful show is allowed to produce, and the further an exceedance has to travel before it registers. Under the January 2025 agreement the do-not-exceed level is the greater of the measured ambient or 50 dBA, plus six. Across the three shows the city published in 2025, reported pre-show ambient ran from 46 to 56 dBA at the five stations, putting the ceiling for those nights between 56 and 62 — above the 43 to 60 dBA range Hankard measured in the community in 2024.

Its absence is why the question of whether the mitigation reduced sound at homes cannot be answered from public records — by this newspaper, by residents, or by the city. Three independent lines point the same way: complaint response shows no improvement once weather is controlled; front-of-house exceedances recurred in the same 40 Hz band in both seasons; and two of the first three post-mitigation shows carry a flagged exceedance in the city’s own posted documents. None of that is proof the mitigation failed acoustically. It is an absence of evidence that it succeeded, held by the parties in possession of the data.

The Monument Independent has requested those records from the City of Colorado Springs under the Colorado Open Records Act — the native monitoring data, the four unpublished 2025 reports, the alert and penalty records, the approved construction drawings, and any post-mitigation measurement at the original ten neighborhood locations.

The city responded with a cost estimate substantial enough to put the request out of reach for a newspaper this size. That is not an accusation of bad faith; CORA permits agencies to charge for research and retrieval time, and a request covering three seasons of continuous monitoring data across multiple stations is genuinely large. This newspaper is narrowing the request and refiling. But the practical effect is worth stating plainly, because it is part of the story: the data that would answer whether roughly $2 million of mitigation reduced sound at anyone’s house exists, is held by public and private parties, and has a price on it. This story will be updated as records arrive.

The variable that answers to a decision

A wall is a fixed object. Its height, mass and position do not change from night to night, and it does most of its work at mid and high frequencies. The atmosphere between the stage and Gleneagle is not fixed. It reorganizes itself daily, and on the dates it carried sound north, submissions ran roughly six times higher than on the dates it did not.

That is the structural asymmetry underneath this dispute. Roughly $2 million — the figure given by the venue’s own counsel — was spent on a fixed object aimed at a variable problem. The wall is the same wall on a calm upwind evening and on a warm October night with a southerly breeze and an inversion overhead; what reaches Gleneagle is not remotely the same.

A caveat that cuts slightly against the neatness of that framing: a barrier’s effective performance is not perfectly constant either. Downward refraction can bend sound over a barrier and erode the shielding it provides, which means the walls may do less on exactly the nights they are needed most. That does not rescue the fixed-versus-variable point. It sharpens it.

Nothing anyone builds at Polaris Pointe will change the weather.

What can change is what the walls are asked to contain. And every adjustment the venue has been able to make immediately since it opened — rather than over a construction season — has been operational rather than structural: fireworks eliminated after the first season, the PA adjusted mid-season in 2024, permitted hours cut to 10:30 or 11 p.m. against an application requesting 11:30 nightly, and — under both the 2022 assessment and the January 2025 agreement — a real-time alert system that notifies the operator when front-of-house levels exceed defined criteria, after which production staff are instructed to bring them down. The city says exceedances in prior seasons were “addressed in real time during events.”

So the lever exists, is installed, and is in use. The question the public record does not answer is where it is set.

Here the documents are unusually specific. The 47 dBA figure that reassured the city in 2022 — the number that carried into the planned unit development — was modeled on a front-of-house source of 100 dBA. The controls the same document proposed, and which the city approved, permit 105 dBA Leq with maximums to 110. The venue is licensed to operate five to ten decibels above the source level its own promise assumed. Because sound intensity roughly doubles every three decibels, that is not a rounding difference.

Nobody has publicly reconciled those two numbers. No document reviewed for this story models the residential levels implied by the permitted source rather than the modeled one. The Monument Independent has asked the city whether that calculation has ever been performed.

The penalty trigger has a parallel blind spot. It fires at 6 dB(A) above the limit at two or more monitoring stations simultaneously. Wind direction appears in the agreement only as a measurement-validity condition, never as an operating one. A trigger indexed to propagation — tighter on the nights physics says sound will carry, looser on the nights it will not — is a thing that could be written into a permit. The current one treats every night as the same night.

There is a second blind spot, and it is the weighting. The trigger is written in A-weighted decibels, which discount 40 Hz by roughly 34 dB — and 40 Hz is the band where both seasons’ front-of-house exceedances occurred, the band barriers do least to control, and the band residents describe when they write that their walls are vibrating. The agreement already contains a low-frequency limit at front of house. Extending that logic to the residential monitors would measure the thing people are complaining about. Nothing in the record indicates it has been proposed.

Something close to it has been proposed, though not by the city. The residents’ consultant set out a monitoring specification in July 2025: define ambient as the quietest one-hour L90 during concert hours on a comparable evening with no event, rather than an average taken before the doors open; apply a 45 dBA five-minute limit at residences; record one-second data from 16 Hz to 20 kHz; publish both filtered and unfiltered figures; and adopt either the ANSI low-frequency limits or a 60 dBC five-minute ceiling. Whether that specification is the right one is a question for acousticians. That it has sat in the city’s possession since July 2025 is a matter of record.

Together these describe a regulatory instrument that is precise about the wrong quantity on the wrong nights.

None of which establishes that a quieter show would satisfy the neighborhoods, or by how much. That is precisely the calculation the missing measurements would support and currently cannot. But the logic of the record is not complicated: the venue has spent three seasons building against the variable it cannot control, and has never reconciled the one it can with the promise it was approved on.

The 2026 season is still running.

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The Monument Independent publishes a sound forecast for upcoming Ford Amphitheater concerts, built on the analysis in this story. It scores each scheduled show on the two variables identified here — the forecast wind direction and the low-frequency content of the act — and updates twice daily. The tool is described in more detail here.

If you hear the venue at your home, the resident-operated map at ajudavem.com/noise is where these complaint records come from, and the forecast improves as more people report. If you live near the venue and are not troubled by it, we would like to hear from you as well: [email protected].

Sources & further reading

The Independent’s own coverage: Ford Amphitheater Sound Forecast — the interactive tool built on this analysis · The Independent Builds a Sound Forecast for the Ford Amphitheater · Follow the Money: Buc-ee’s, the Ford Amphitheater Network and the 2026 Commissioner Races — separate reporting on county-level campaign finance connected to the venue’s network.

Acoustic research: D. Fiumicelli, A. Parker, C. Lawrence and D. Stewart, “Low Frequency Sound at Outdoor Concerts — A Necessary Noise,” Proceedings of the Institute of Acoustics, Vol. 46 Pt. 2 (2024) — the source of the genre categories and LC−LA differentials used in this story.

City measurement record: Hankard Environmental, Ford Amphitheater noise measurements, Oct. 31, 2024 · City third-party monitoring, April 30, 2025 and May 5, 2025 · LSTN Consultants, Noise Monitoring Annual Report 2025 (issued Nov. 19, 2025).

Applicant and operator record: LSTN preconstruction environmental noise assessment, Sept. 13, 2022 · Venu press releases, Aug. 20 and Aug. 26, 2024 · Venu season review presentation, Oct. 25, 2024 · City–Venu joint statement, Aug. 28, 2024 · Mitigation and monitoring agreement and noise hardship permit NHP 2025-004, Jan. 27–28, 2025 · City permit announcement, May 6, 2026.

Resident-commissioned technical work: Dudek measurement memorandum, Aug. 30, 2024 · Dudek peer review, July 8, 2025 — both by Dana Lodico, PE, INCE Bd. Cert.

Law: Colorado Springs City Code §§9.8.103, 9.8.104, 9.8.106, 9.8.109 · El Paso County Ordinance 02-1 · C.R.S. §25-12-101 et seq. · Hobbs v. City of Salida, 2025 CO 50 · SB26-098.

Corporate filings: VENU Holding Corporation, Form 8-K filed June 11, 2026 — Item 8.01 discloses the May 11, 2026 restructuring of the amphitheater operating agreements; Item 1.01 discloses the June 5, 2026 sale of the land beneath the venue · Form 10-K for the year ended December 31, 2025, filed March 31, 2026.

Litigation record: Northside Neighbors Association v. Notes Live, Inc., No. 2023CV31839 (El Paso County District Court) — complaint, motions to dismiss, dismissal orders, appellate briefs and the Sept. 12, 2024 Court of Appeals opinion, posted by the plaintiff association at sunsetlawsuit.org/courtdocs · Freed v. Bonfire Entertainment and Hobbs v. City of Salida, Colorado Court of Appeals · Hobbs v. City of Salida, 2025 CO 50.

Reporting by others: KOAA (council vote, Jan. 11, 2023) · KKTV, Tony Keith (first-week complaints, Aug. 13, 2024) · Colorado Public Radio, Dan Boyce (Aug. 28, 2024) · Colorado Politics, Brennen Kauffman (Sept. 27, 2025) · 719 Magazine (lawsuit, Jan. 21, 2026 — interviews with plaintiffs Marianna Bailey and Danielle Frye, and the city’s 2025 complaint figures) · KOAA carrying Gazette reporting by Kauffman and Jent (Jan. 22–23, 2026) · 9News (Jan. 2026).

Complaint data: resident-operated noise map at ajudavem.com.

Methodology

The complaint figures come from a resident-operated crowdsourced map, retrieved in full on August 16, 2026 — 769 reports dated September 9, 2024 through August 13, 2026, verified byte-exact against the server response. The site is advocacy-aligned: it solicits donations for legal action and links to litigation-support sites. It permits only one report per exact coordinate, so repeat complainants must shift location, which makes the counts a hybrid of events and locations. It is a record of complaint volume and geography, not calibrated measurement.

Cleaning removed three explicit “please ignore” reference markers, records migrated from an earlier map that carry migration dates rather than incident dates, and exact-duplicate coordinates, leaving 737 for analysis. Self-reported decibel readings were excluded from the analysis entirely: the map has no instrument field, only six submissions name an instrument, and the calibration and method behind the rest cannot be verified. Where those readings are cited above they are described as what residents recorded, not as measurement.

Submissions, not complainants. The map is anonymous and uses the exact coordinate as its editing credential, which means a household filing again must shift location slightly. Counts are therefore a hybrid of incidents and locations and cannot identify unique complainants or control for repeat filers. This story says “submissions” rather than “people” throughout, and the two are not interchangeable.

Assigning submissions to performances. Many submissions are filed the morning after a show, so each is assigned to the performance on its own date where one exists, and otherwise to the previous day’s performance. An earlier version of this analysis credited each performance with its own day and the following day, which double-counted 26 submissions across five dates where shows fell on consecutive days — most visibly Glass Animals and King Gizzard on August 7 and 8, 2025. Correcting it moved the headline correlation from +0.44 to +0.43 and changed no conclusion. Under the exclusive rule, 686 of the 737 cleaned submissions fall within one day of a performance; the remainder fall on non-performance dates and are counted in the geographic totals but attributed to no show.

Written comments are quoted as filed, with spelling and capitalization normalized and no other alteration. Reports are identified by distance and date only; the map does not collect names, and no attempt was made to identify any filer.

Weather was drawn from the Open-Meteo Historical Forecast API at roughly three-kilometer resolution, for the observed or advertised duration of each of the venue’s 62 performances. The grid point used sits 1.6 kilometers from the venue at essentially venue elevation. The downwind component is the wind vector projected onto the bearing from the venue to the complaint centroid (18.8°, the vector-mean bearing of all 737 cleaned complaint locations). Temperature inversion is the difference between air temperature at 80 meters and at 2 meters, with positive values indicating downward refraction.

Model weather was validated against Air Force Academy airfield observations from the Iowa Environmental Mesonet archive across 237 paired hours: wind-speed bias +0.31 m/s, mean absolute error 1.33 m/s, direction agreement within 45° on 67% of hours, and — for the metric carrying the analysis — a correlation of 0.86 on the downwind component. Submissions were joined to performances under the exclusive rule described above.

The sample. The venue has held 62 performances — 59 concerts and three comedy shows, including a private soft opening on August 6, 2024. The complaint map launched September 8, 2024, a month into the first season, so twelve performances predate it and record zero submissions for reasons unrelated to sound. The primary analysis therefore uses the 50 dates the map was open for. Including all 62 as a sensitivity test weakens the reported relationships rather than strengthening them — wind falls from +0.43 to +0.36 and genre from +0.51 to +0.43 — because five of the twelve excluded dates were downwind, so the false zeros dilute rather than inflate.

Statistics and their limits. These are Spearman rank correlations on a sample of 50. Direction and rough magnitude are meaningful; exact coefficients are not, and small shifts between them should not be read as meaningful either. The significance tests assume independent observations, and these are not strictly independent — repeat filers, reporting effort that grew over three seasons, and consecutive-night shows all violate that assumption to some degree. Treat the p-values as rough guides rather than as thresholds. Correlation is not causation, and nothing here establishes that weather caused any submission. Remaining uncontrolled variables include stage volume, attendance, day of week and drifting reporting effort.

What supports the wind pattern is that it runs in the direction acoustics predicts, that it survives removal of the largest outlier (+0.39), that it holds when genre is controlled for (+0.34), and — most importantly — that it does not depend on the weather model.

The observation-only check. Recomputing the downwind component from Air Force Academy airfield METAR observations rather than from the model gives +0.41 across 48 dates (two dates lack usable station data), against +0.43 for the model. Observed wind speed tracks complaint volume at +0.03. The model and the observations agree on the downwind component at r=0.93 across 60 events, and that agreement is stable season by season — r=0.94 in 2024, 0.94 in 2025, 0.90 in 2026, with sign agreement between 89 and 91 percent throughout. This matters because Open-Meteo’s historical-forecast archive stitches together successive operational model versions and warns against assuming long-run consistency; the season-by-season check is how that concern was tested here rather than assumed away.

What could not be validated. The inversion series has no observational check available. The airfield reports temperature at the surface only, and the nearest upper-air sounding is Denver, sixty miles north and launched hours before most performances begin. Modeled inversions are reported in this story as physical context, are not used by the forecast tool, and do not reach statistical significance on their own (+0.26, p=0.07).

On the differing correlation figures. Several numbers appear for the wind relationship across this newspaper’s work and they are not in conflict. The figure used in this story is +0.43 — the 50 observable dates, exclusive assignment rule. All 62 dates gives +0.36. Observations only gives +0.41. The forecast tool currently publishes +0.42, computed on all 62 with complaints ranked within season; it will be updated to the corrected basis.

Data availability. The cleaned dataset, the list of excluded rows with reasons, the act classifications and the weather query parameters are published alongside this story so that any reader can reproduce these figures or challenge them.

Genre classification follows the Institute of Acoustics categories cited above, applied to each act by hand. An act nobody has classified is scored as medium rather than as an extreme, so an unrecognized name cannot on its own produce a high or low forecast. Assigning a given performer to a category remains editorial judgment, and the classification for every act is published on the forecast tool.