US-395 Conway Summit & Mono Basin Escarpment
At a glance: Graded 82 out of 100 (Tier 4: Steep Mountain & Exposed Coast) across 13.4 miles in Eastern Sierra. High-elevation Eastern Sierra escarpment climb rising above Mono Lake to 8,143-foot Conway Summit with Sierra downslope wind gusts.
Why this corridor sits in Tier 4
Climbing the eastern fault scarp above Lee Vining and Mono Lake, US-395 gains more than 1,350 feet to Conway Summit along an exposed bench cut into the Sierra Nevada flank. Severe downslope Sierra Rotor crosswinds, high-speed passing-lane merges, and sudden mountain weather shifts define its operational complexity.
Key roadway traits
- 8,143 ft summit elevation
- Severe Eastern Sierra crosswind gusts
- Sustained 6.5% fault-scarp climb
Four-factor geometric & crash decomposition
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Connected highway & local crash profiles
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Other Tier 4 California corridors
Methodology & interpretation limits
Complexity Index combines horizontal curvature, sustained elevation grade, speed-transition demand, and 12-month historical reported crash concentration per corridor mile. Counts describe observational public records unadjusted for daily traffic volume and do not represent driving safety advice. Missing-coordinate collision records in surrounding cities are reported separately in live buffered queries and are never plotted at synthetic coordinates.
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