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County Road 37 over New Cache La Poudre Cana

Weld County, Colorado · rated Fair in the 2025 National Bridge Inventory

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

County Road 37 over New Cache La Poudre Cana in Weld County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1986, making it 39 years old at the 2025 inventory.
It carries about 691 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 376 of the 608 inventoried bridges in Weld County rated fair (61.8%); 21 (3.5%) 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.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 50 ft
Location	0.1 Mi North of ST HWY 39
NBI structure number	WEL037.0-068.1A
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 25 Ml over Draw	2004	102,000	Fair
I25 Ml over Draw	2004	102,000	Fair
I 25 ML & Ramps over Channel Md-b	2000	91,000	Good
I 25 Ml and Fr Rds over Lower Boulder Ditch	2000	91,000	Good
I 25 Ml Nbnd over SH 60 Ml	2023	86,000	Good
I 25 Ml Sbnd over Weld County Road 46	2022	83,000	Good