Research · Product Feasibility · September 2026

Can residents actually comply?

A standard is only real if someone can buy the equipment. This page tests the proposed cable protector rules against what is actually on the market: span, weight, price, and measured profile. The finding that shapes the recommendation is uncomfortable and worth stating first. No product on the market today simultaneously spans a typical Alexandria sidewalk, weighs little enough to deploy several times a week, and has a verified 1:12 ramp slope. A rule written as though one exists would authorise curbside charging on paper and prevent it in practice.

The implementation paradox

The proposal exists because Alexandria's current rules cannot be complied with: there is no lawful way to charge across the sidewalk, so a resident doing the safest available thing and a resident doing the most careless thing are treated identically. It would be self-defeating to answer that with a standard which also cannot be complied with.

That risk is concrete, not hypothetical. Protectors that achieve a genuinely gentle ramp do it by being deep in the walking direction — around 28 inches from toe to toe — which is what makes them heavy and expensive. Stack three requirements together, namely a strict 1:12 ramp, full coverage of a 5 to 6 foot sidewalk, and removal after every charging session, and the household bill runs to several hundred dollars for equipment weighing tens of pounds that must be carried out and put away several times a week.

Why the same span weighs 5 pounds or 80 pounds

The single biggest driver of weight is not accessibility geometry. It is load rating. Heavy cast-rubber protectors are built so that trucks can drive over them, at ratings up to 22,000 pounds per axle. Nothing heavier than a stroller crosses a residential sidewalk. Specifying pedestrian loading rather than vehicle loading changes the product class from cast rubber to moulded polyethylene, and the same 3-foot span drops from tens of pounds to about five. That one line does more for deployability than any other choice in the standard.

What the market actually offers

Products divide into two groups that do not overlap. Group A is light, cheap, modular, and deployable by anyone, but no member of it publishes or achieves a true 1:12 approach. Group B offers genuinely low-angle ramps, but at much greater depth, weight, and cost — and even there, the slope is usually unpublished.

Depth is the dimension along the direction of pedestrian travel; span is the dimension across the walkway. Assessments are this site's own, against the proposed standard. They do not imply City approval, and no product listed has been tested by anyone independent.

The regulatory fork that decides whether this is possible

A protector lying on a sidewalk is a change in level, not a narrowing of the path. Two documents treat that differently, and the choice between them is the difference between a workable rule and an impossible one.

One caution about PROWAG, stated plainly because the proposal gains nothing from overclaiming: it is guidance, not generally binding law for an ordinary Alexandria residential sidewalk. The Department of Transportation adopted it as an enforceable standard in January 2025 only for transit stops, and the Department of Justice has not adopted it. Alexandria is free to adopt its geometry as a local standard, which is what this proposal asks for, but no one should be told federal law already requires it.

Three ways to write the profile rule

The hybrid is recommended because it is honest about the market as it stands while keeping pressure in the right direction. If a manufacturer brings a light, full-width, genuinely 1:12 product to market, pathway A takes over automatically and the fallback stops being used.

An implementation-readiness test

A proposed rule should not be treated as ready for adoption unless the City can identify at least two commercially available products or assemblies that all of the following are true of:

• covers a typical Alexandria sidewalk of 5 to 6 feet, in one piece or joined sections;
• accepts an ordinary EV charging cable within its channel;
• satisfies the adopted profile rule;
• can be deployed and removed by one person without tools or machinery;
• meets the component weight limit;
• is affordable for an ordinary household;
• and can be bought today.

Applying that test to the market as of September 2026 gives a clear split. Under the hybrid rule, two assemblies pass: two Guardian sections joined, spanning about 76 inches at roughly 10 pounds and about $150 in total; and a Guard Dog Low Profile ADA section joined to a matching module, heavier and several times the price but within the component weight limit — the assembly Fredericksburg's approved list points to. Under a strict 1:12 rule, the count is zero — not because no product could qualify, but because no manufacturer publishes the slope data that would prove it. If the City wants strict 1:12, the right question to put to staff is simply: which products satisfy it?

Portland moved the same way

Portland is the most useful precedent because its rule has a history. The 2021 version of its encroachment rule for charging cord covers contained an explicit 1:12 maximum ramp grade and a four-foot landing requirement. The current rule, adopted in April 2026, contains neither. What it specifies instead is measurable and performance-shaped: a sidewalk running grade of 10% or less, gaps no greater than ½ inch, a bottom lip no greater than ¼ inch, no noticeable flex under a 200-pound point load, no fasteners of any kind, and a cover that “shall be the width of the sidewalk through the zone.”

Portland has not said why it made that change, and this page does not claim to know. What the before and after shows is narrower but still useful: a mature program, several years into operation, chose to move away from prescriptive ramp geometry toward measurable performance criteria. That is the direction this proposal recommends for Alexandria.

Fredericksburg made the same choice, with a list

The nearest working program offers a live test of all of this. Fredericksburg, Virginia's curbside charging pilot, open since December 2025, wrote its ramp geometry the way Seattle and DC did — a 1:2 bevel under half an inch, and above it a 1:12 ramp with landings — and then published six approved cord-cover examples, every one of them 1.25 inches tall. All six come from the same low-profile family tabulated above: 36 to 39.75 inches of span, 27 to 28.5 inches deep, and 21 to 25 pounds apiece. The City reviewed those products and “determined [them] to be in compliance,” while stating that the list is “not comprehensive” and that it “does not endorse” any manufacturer. Multiple sections are expressly allowed if they interlock.

Three things follow. Every unit on that list sits within the 25-pound component ceiling this site proposes, which is some evidence the ceiling is set where the market already is. A 5-to-6-foot sidewalk still needs two interlocked units, so the deployed assembly is 42 to 50 pounds and, at September 2026 prices, several hundred dollars — the very burden described above, now with a Virginia address. And the City resolved the gap between its written geometry and the products that exist not by loosening the geometry but by publishing a list. That is the hybrid, approved-products model this page recommends, already in operation fifty miles from Alexandria.

Where the market gap actually is

Publishing the gap is more useful than papering over it. Three things are missing, and all three are fixable without any change in law.

• Published slope data. Only one manufacturer states a figure. Until the others publish, a rule written around 1:12 cannot be applied without the City measuring devices itself.
• A light single-piece span over four feet. Extruded aluminium is the only candidate found, and its weight is unpublished. If it is light, it resolves most of this page's difficulty at a stroke.
• Any product below ½ inch. A genuinely flush profile would move the whole question into the permissive tier of both standards. Nothing on the market is close.

None of this is an argument against the crossing. It is an argument for the recessed channel as the eventual answer, and for a removable protector rule written around what households can actually buy in the meantime.

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