A 2020 audit of Los Angeles’s city-owned art collection found that a quarter of the pieces with recorded condition data were damaged or in poor shape, and nearly a fifth were missing outright. That’s one city, and it captures a pattern that shows up wherever permanent public art has been standing for a few decades. Public art commissioners manage more than artist selection and community input. They manage a maintenance problem that starts building the day an installation goes up.
The Des Moines Art Center found out how expensive that problem gets. The museum spent nearly $1 million maintaining Mary Miss’s Greenwood Pond: Double Site after it opened in 1996, and still concluded by 2024 that parts of the installation had become unsafe and unsalvageable. The dispute that followed ran through a temporary restraining order, a preliminary injunction, and eventually a $900,000 settlement that let the demolition proceed. None of it traced back to a weak concept or the wrong artist. It traced back to a material that couldn’t hold up outdoors for thirty years.
That leaves commissioners with a specific, practical problem. Percent-for-art funds get set aside once, at the moment of construction, and mostly forgotten after that. GSA’s Art in Architecture Program reserves one half of one percent of construction cost for a commission, and most municipal ordinances work the same way: a fixed share, appropriated once, spent down on a single project. Almost none of them plan for what a mural needs twenty-five years later.
De-risking a permanent installation isn’t really an artistic decision. It’s a specification decision, made early, before the RFQ goes out.
Commissioners who get this right treat material selection as a risk-management exercise, on par with structural engineering or ADA compliance. Commissioners who get it wrong end up choosing between an expensive rescue and a public demolition, the same choice Des Moines faced.
Permanent public art murals carry more of this risk than almost any other category of commissioned work. A mural lives outdoors, at scale, exposed to UV and weather every day for the life of the installation. Getting the specification right at the start matters more here than almost anywhere else in a public art program.
The Funding Model Wasn’t Built for What Comes After
Every percent-for-art program funds the commission first, and treats the decades after it as an afterthought. Chicago’s ordinance sets aside 1.33 percent of a construction budget for art at that site, but caps maintenance and administration at no more than 20 percent of that fund. Seattle has run a 1 percent ordinance since 1973, one of the oldest in the country, structured the same way: money for acquisition, very little earmarked for what comes next.
A handful of cities have tried to close that gap on their own terms. Portland’s Regional Arts and Cultural Council reserves 10 percent of its percent-for-art funding specifically for maintenance. Richmond, California, carves out roughly half a percent of every project for conservation and upkeep, kept separate from the art budget itself. San Francisco runs its 2 percent program alongside an annual private fundraiser called ArtCare, which brought in $75,000 in a recent year to help cover maintenance the city fund can’t.
These are patches on a structural problem and not a sustainable fix. A funding model built around a single disbursement will always struggle to pay for decades of upkeep. The more durable answer isn’t a bigger maintenance line item. It’s a material that needs a smaller one.
What Failure Actually Looks Like
Deterioration rarely announces itself all at once. It shows up as a slow accumulation of small problems, a faded panel here, a chipped edge there, a color that no longer matches the artist’s original intent. Years later, someone adds it all up and finds a bill nobody budgeted for.
Greenwood Pond turned into exactly that kind of bill, and the legal fight over it hinged on more than money. Mary Miss sued to block the demolition, arguing breach of her 1994 contract with the Art Center and a violation of the Visual Artists Rights Act. A federal judge sided with her on the contract claim and issued a preliminary injunction, but found the VARA claim unlikely to succeed, since the statute protects “painting, drawing, print, or sculpture” and a court wasn’t convinced an environmental Land art installation qualified. The dispute ended in a settlement that paid Miss $900,000 and cleared the way for demolition.
A similar pattern played out in Chicago, on a much bigger structure. Sol LeWitt’s 90-by-72-foot sculpture “Lines in Four Directions” came down from the facade of a GSA-owned building in 2025 after inspectors found damage serious enough to require a full rebuild. That rebuild remains unapproved and unfunded months later. Neither outcome reflects a failure of artistic vision. Both reflect a material and mounting system that couldn’t survive the environment they were placed in.
The Times Square Mural: A Different Outcome
Not every permanent installation ages this way, and the difference usually traces back to a single decision made before construction ever began.
Roy Lichtenstein’s “Times Square Mural” pictured above has occupied the mezzanine of the Times Sq-42 St station since 2002, one of the busiest transit hubs in the country, serving roughly 57.7 million riders a year. The mural depicts a bullet-shaped subway car racing through an underground station, layered with references to Lichtenstein’s earlier work and to the architectural history of the New York City subway itself, right down to the iconic “42” motif pulled from the station’s own tilework.
Lichtenstein commissioned the piece independently in 1994, well before its eventual installation. According to the Roy Lichtenstein Catalogue Raisonne, the artist contracted Winsor Fireform to fabricate the sixteen porcelain enamel steel panels that make up the mural. Polich Art Works handled the framing and on-site installation in 2002, five years after the artist’s death, working from panels that had already spent eight years waiting for a station renovation to catch up with them.
Twenty-four years later, in one of the highest-traffic stations in the MTA Arts & Design collection, the mural still reads the way it did on opening day. No repainting. No panel replacement. No maintenance crew fighting edge delamination. The color holds because glass fused to steel at high temperature doesn’t fade the way ink or paint does, and 57.7 million annual riders a year haven’t put a dent in that.
That’s the outcome a durable specification buys a commissioner: an installation that ages out of the maintenance conversation entirely, freeing the budget for the next commission instead of the last one.
Building Maintenance Out of the Commission, Not Into It
The public art field has mostly responded to the maintenance problem by building better maintenance programs: condition assessments, cleaning schedules, and dedicated conservators on staff at cities like Cambridge. These programs help, but they treat the problem after the commission, not during it.
The more effective move happens earlier, at the specification stage, when the commissioner and the artist choose a substrate and a finish system together. A porcelain enamel surface fuses glass to steel at temperatures above 1,400°F, producing a non-porous, UV-stable finish that carries a 25-year fade warranty tested to ASTM D2244. That single decision, made once, removes most of the deterioration modes behind the Greenwood Pond and LeWitt cases: no peeling, no delamination, no chalking, no color drift.
The percent-for-art ordinances tracked by Americans for the Arts assume the artwork gets built once and lives a long time. Choosing a material engineered for that same timeline, rather than one that needs regular intervention to reach it, is the most direct way to honor that assumption.
Photographic and high-detail public art murals carry an added specification challenge: color fidelity has to survive at scale and at distance, not just at installation. Porcelain enamel on steel panels holds color matching within 2 NBS units, close enough that an artist’s original palette reads true from across a platform or a plaza for the life of the warranty, not just the first few years.
A Specification Checklist for Commissioners
A few questions, asked before the RFQ closes, do most of the risk-reduction work:
Does the proposed material carry an independent, tested warranty against fading, or only a manufacturer’s general claim? Has the fabricator documented performance against recognized standards, rather than relying on marketing language alone? Does the mounting system, whether a flanged or exposed frame, allow for inspection and, if ever necessary, replacement without damaging the artwork itself? Has the commissioning agency budgeted for the full lifecycle, or only for the year the ribbon gets cut?
None of these questions require an art history degree to answer. They require the same due diligence a facilities manager already brings to a roofing material or an HVAC system, applied to the artwork sitting in front of the building.
The Real De-Risking Question
Commissioners rarely fail public art programs by picking the wrong artist. They fail them by picking a material that can’t carry the artist’s vision for twenty-five years without help. Sound substrates, tested finishes, and a warranty that means something on paper protect an installation better than any maintenance budget drawn up after the fact.
Winsor Fireform has fabricated porcelain enamel murals and public art since 1983, from the Lichtenstein Times Square Mural to current public art and transit installations across the country. Commissioners weighing a permanent installation can reach out for a materials consultation before the RFQ goes out, while there’s still time for the specification to do the work a maintenance budget shouldn’t have to.
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