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Tool 04
ZIIS Score

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ZONEIUM.AI
Infrastructure Intelligence
FHWA · NBI · BLS · BTS
⬤ 2026 Edition
The Definitive Standard
ZIIS
Zoneium Infrastructure Intelligence Score

The first composite score to measure every U.S. state's infrastructure across five critical dimensions — safety, compliance, investment, modernization, and resilience. Powered by ZILM.

A · 80–100
B · 65–79
C · 50–64
D · 35–49
F · 0–34
57
National
// U.S. National ZIIS Average · 2026
America's Infrastructure
Earns a C Grade

The U.S. national ZIIS average of 57 reflects years of deferred maintenance, widening compliance gaps, and uneven digital modernization across state DOTs. With the December 2026 FHWA deadline approaching, 31 states are at risk of falling further.

Safety
52
Compliance
58
Investment
61
Modernization
54
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State Rankings
▲ Top 10 — Leading States
▼ Bottom 10 — At-Risk States
// Powered by ZILM · Zoneium Infrastructure Language Model
Your State's Full ZIIS Report
Is Ready in 48 Hours.

The public ZIIS score is the summary. The full report includes corridor-level scoring, maintenance priority rankings, FHWA compliance gap analysis, and a 3-year trajectory forecast. Available exclusively through Zoneium Foundation.