Home › Wyoming › Niobrara County › Ni Cnty Rd 18 over Sage Creek

Ni Cnty Rd 18 over Sage Creek

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

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

Ni Cnty Rd 18 over Sage Creek in Niobrara 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 1997, making it 28 years old at the 2025 inventory.
It carries about 31 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 12 of the 34 inventoried bridges in Niobrara County rated good (35.3%); 1 (2.9%) 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 127 ft
Location	14 Mi Ne Of Lusk
NBI structure number	KHU
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 18 over Niobrara River	1988	2,942	Fair
US 85 over UPRR	2016	2,942	Good
US 18 over Stockpass	1970	2,406	Good
US 18 over Old Woman Creek	1971	2,150	Fair
US 18 over Old Woman Creek	1987	2,150	Fair
US 18 over Mule Creek	1988	2,150	Fair