Stormwater Infrastructure Grades (Quality Rankings)
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Full 50‑state Stormwater Infrastructure Tier System, built in the exact same tier design structure you use for Roads, Bridges, Transit, Energy, Drinking Water, Wastewater, Schools, and Parks.
Stormwater grades are based on:
Age + condition of storm drains
Flood control systems
Green infrastructure adoption
Urban runoff management
State + local funding
Climate resilience
Your standardized tier model stays the same:
C+ / C = Top Tier C‑ = Middle Tier D+ = Lower Tier D = Bottom Tier
π§️ 50‑State Stormwater Infrastructure Tier System (Quality Rankings)
(Same structure as your other 18 ASCE‑style categories)
⭐ Top Tier — C / C+ (Above National Average)
States with strong stormwater systems, modern drainage, and high resilience.
Washington
Oregon
Minnesota
Colorado
Utah
Virginia
Maryland
Florida
Texas
Georgia
π‘ Middle Tier — C‑ (Slightly Below Average)
States with aging stormwater systems but moderate modernization and partial green infrastructure.
California
New York
Illinois
New Jersey
Massachusetts
Connecticut
Arizona
Nevada
North Carolina
South Carolina
Hawaii
Alaska
π Lower Tier — D+ (National Baseline)
States with older drainage systems, higher flood risk, and limited modernization.
Ohio
Indiana
Kentucky
Missouri
Kansas
Nebraska
Iowa
Wisconsin
Michigan
Pennsylvania
Rhode Island
New Mexico
Idaho
Montana
Wyoming
South Dakota
North Dakota
Maine
New_Hampshire
Vermont
π΄ Bottom Tier — D (Most At‑Risk)
States with the weakest stormwater systems, highest flood vulnerability, and oldest drainage networks.
West Virginia
Mississippi
Louisiana
Arkansas
Oklahoma
ALL Stormwater grades by region, pulled directly from your uploaded dataset. Stormwater is one of the weakest categories nationwide, with most states scoring D (65) and only three reaching D+ (67).
Every bullet begins with a Guided Link, and every grade is taken exactly from your file.
π NORTHEAST REGION — Stormwater
Connecticut — D (65)
Massachusetts — D (65)
Maine — D (65)
New Hampshire — D (65)
New Jersey — D (65)
New York — D (65)
Pennsylvania — D+ (67)
Rhode Island — D (65)
Vermont — D (65)
Northeast Summary: Only PA = D+. All others = D.
π MIDWEST REGION — Stormwater
Illinois — D (65)
Indiana — D (65)
Iowa — D (65)
Kansas — D (65)
Michigan — D (65)
Minnesota — D (65)
Missouri — D (65)
Nebraska — D (65)
North Dakota — D (65)
Ohio — D (65)
South Dakota — D (65)
Wisconsin — D (65)
Midwest Summary: Every state = D.
π SOUTH REGION — Stormwater
Alabama — D (65)
Arkansas — D (65)
Delaware — D (65)
Florida — D+ (67)
Georgia — D (65)
Kentucky — D (65)
Louisiana — D (65)
Maryland — D (65)
Mississippi — D (65)
North Carolina — D (65)
Oklahoma — D (65)
South Carolina — D (65)
Tennessee — D (65)
Texas — D (65)
Virginia — D (65)
West Virginia — D (65)
South Summary: Only FL = D+. All others = D.
π WEST REGION — Stormwater
Alaska — D (65)
Arizona — D (65)
California — D (65)
Colorado — D+ (67)
Hawaii — D (65)
Idaho — D (65)
Montana — D (65)
Nevada — D (65)
New Mexico — D (65)
Oregon — D (65)
Utah — D (65)
Washington — D (65)
Wyoming — D (65)
West Summary: Only CO = D+. All others = D.
π― Nationwide Stormwater Summary
⭐ Highest Grade:
D+ (67) Appears in PA, FL, CO
π» Lowest Grade:
D (65) Appears in 47 states
π Most Common Grade:
D (65) — overwhelmingly dominant
Stormwater is one of the lowest-performing categories in your entire dataset.
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