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I-25 Nbl over I-25 East Service Road

Platte County, Wyoming · rated Good in the 2025 National Bridge Inventory

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

I-25 Nbl over I-25 East Service Road in Platte County, Wyoming, 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 1970, making it 55 years old at the 2025 inventory.
It carries about 3,514 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 50 of the 159 inventoried bridges in Platte County rated good (31.4%); 15 (9.4%) 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 steel stringer or multi-beam girder
Length	about 171 ft
Location	Chugwater - Wheatland
NBI structure number	ADO
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 87 Bus over I-25	1975	6,322	Good
US 26 over North Platte River	1983	4,832	Fair
I-25 NBL and SBL over Rock Creek	1975	3,865	Fair
I-25 Nbl over Machinery Pass	1966	3,743	Poor
I-25 Nbl over Laramie River	1966	3,743	Good
I-25 Nbl over Laramie River Road	1966	3,743	Fair