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HomeUtahMillard County › US-50 (SR-50) over I-15 (SR-15) Nbl & S

US-50 (SR-50) over I-15 (SR-15) Nbl & S

Millard County, Utah · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (39.1445, -112.23669)

Component ratings

ComponentRating (2025)FHWA scale meaning
Deck6Satisfactory condition
Superstructure6Satisfactory condition
Substructure6Satisfactory condition

Bridge details

StructureContinuous concrete multiple box beam
Lengthabout 285 ft
LocationNorth Holden Interchange
NBI structure number0P 14
Condition classFair

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

Busiest bridges in Millard County

BridgeBuiltVehicles/dayCondition
I-15 (SR-15)NB&SB over Chalk Creek197224,744Fair
I-15 (SR-15)NB&SB over Chalk Creek Overflow Ch.197224,744Fair
I-15 (SR-15) Nbl over SR-99 Intchg. X-road197224,744Fair
I-15 (SR-15) Sbl over SR-99 Intchg. X-road197224,744Fair
I-15 SB over Dog Valley Access Rd202223,000Good
I-15 (SR-15) Nbl over Co. Rd. Inter X-road196622,567Fair

All bridges nearby: Millard County, UT bridge conditions · every bridge in Millard County · Utah bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.