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County Road 5825 over Ironstone Canal

Montrose County, Colorado · rated Good in the 2025 National Bridge Inventory

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

County Road 5825 over Ironstone Canal in Montrose County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1996, making it 29 years old at the 2025 inventory.
It carries about 591 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 42 of the 117 inventoried bridges in Montrose County rated good (35.9%); 3 (2.6%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 43 ft
Location	1.2 Mi W of Olathe
NBI structure number	085582500.1591A
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 550 Ml over Cedar Wash	1936	25,000	Fair
US 50 Ml over Cedar Creek	1958	14,000	Fair
US 50 Ml over Loutzenheizer Wash	1989	13,000	Fair
US 550 Ml over Horsefly Creek	1994	13,000	Good
SH 90 Ml over Uncompahgre River	1969	12,000	Fair
US 550 Ml over Montrose+delta Canal	1992	11,000	Good