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E-470 SB over South Platte River

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

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

E-470 SB over South Platte River in Adams County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2003, making it 22 years old at the 2025 inventory.
It carries about 19,215 vehicles a day (traffic count year 2018).
It is one of 232 of the 544 inventoried bridges in Adams County rated good (42.6%); 41 (7.5%) 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	Continuous prestressed concrete stringer or multi-beam girder
Length	about 907 ft
Location	38.97 Mi From I25
NBI structure number	E-470-38.97B
Condition class	Good

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