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152ND Avenue over Speer Canal

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

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

152ND Avenue over Speer Canal in Adams 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 5 (fair condition) on the 0-9 scale.
It was built in 1980, making it 45 years old at the 2025 inventory.
It carries about 7,679 vehicles a day (traffic count year 2021).
Its listed owner is the county highway agency.
It is one of 271 of the 544 inventoried bridges in Adams County rated fair (49.8%); 41 (7.5%) 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

Component	Rating (2025)	FHWA scale meaning
Superstructure	5	Fair condition
Substructure	7	Good condition

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

Bridge	Built	Vehicles/day	Condition
Hov Ramp over I25 Access	1993	242,000	Good
I 25 Ramp over Hov Ramp R	1998	242,000	Good
I 25 Ml over 62ND Ave	1993	196,000	Fair
I 25 Ml over UP RR	1993	196,000	Fair
US 36 Ebnd Ml over I 25 Ml Ramps Hov Lanes	1994	168,000	Good
I 25 Ml over Pedestrian Underpass	1955	154,000	Fair