Nm-187 over Seco Creek

Sierra County, New Mexico · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Nm-187 over Seco Creek in Sierra County, New Mexico, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
• It was built in 1933, making it 92 years old at the 2025 inventory.
• It carries about 521 vehicles a day (traffic count year 2023).
• Its listed owner is the state highway agency.
• It is one of 73 of the 112 inventoried bridges in Sierra County rated fair (65.2%); 5 (4.5%) are rated poor.
• A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

View this bridge on a map → (32.98426, -107.30469)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.

Busiest bridges in Sierra County

All bridges nearby: Sierra County, NM bridge conditions · every bridge in Sierra County · New Mexico bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.