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E-470 Ramp H over I-70 Colfax E470 ML

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

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

E-470 Ramp H over I-70 Colfax E470 ML in Arapahoe 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 2007, making it 18 years old at the 2025 inventory.
It carries about 30,400 vehicles a day (traffic count year 2018).
It is one of 267 of the 392 inventoried bridges in Arapahoe County rated fair (68.1%); 21 (5.4%) 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	Continuous prestressed concrete single box beam
Length	about 1,616 ft
Location	E-470/I-70 Int.
NBI structure number	E-470-20.46A
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 SH 88 Ml W./belleview	1958	246,000	Fair
I 25 Ml over Orchard Road	1958	233,000	Fair
I 25 Ml over Dry Creek Rd	1987	212,000	Fair
I 25 Ml over SH 88 Ml East	2017	212,000	Good
I 25 Ml over County Line Road	1958	171,000	Fair
I 225 Ml over Tollgate Creek	1965	140,000	Good