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SH 59 Ml over I 70 Ml

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

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

SH 59 Ml over I 70 Ml in Kit Carson 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 2018, making it 7 years old at the 2025 inventory.
It carries about 1,200 vehicles a day (traffic count year 2018).
Its listed owner is the state highway agency.
It is one of 40 of the 130 inventoried bridges in Kit Carson County rated good (30.8%); 2 (1.5%) 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 multiple box beam
Length	about 242 ft
Location	I70 at SEIBERT
NBI structure number	G-25-Q
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 70 Ml over Draw	1967	9,900	Fair
I 70 Ml over Draw	1969	9,900	Fair
I 70 Ml over Draw	1966	9,200	Fair
I 70 Ml over Draw	1964	9,000	Fair
I 70 Ml over Drain Ditch	1968	8,000	Fair
I 70 Ml Ebnd over Republican River	1975	5,000	Fair