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Home › Montana › Pondera County › Westridge Rd over Int Bullhead Rd-i 15 0

Westridge Rd over Int Bullhead Rd-i 15 008

Pondera County, Montana · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (48.36511, -111.93574)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Deck77Good condition
Superstructure88Very good condition
Substructure66Satisfactory condition

Bridge details

StructurePrestressed concrete stringer or multi-beam girder
Lengthabout 288 ft
Location9M SW Shelby
NBI structure numberL37115000+05001
Condition classFair
Traffic status (item 41)Open, no restriction
Last inspection (item 90)December 2023
Inspection interval (item 91)24 months
Scour (item 113)N: not over a waterway

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

Busiest bridges in Pondera County

BridgeBuiltVehicles/dayCondition
I 15 over S Pondera Coulee19643,248Fair
I 15 over RR19721,727Good
I 15 over RR19721,727Good
I 15 over Dry Fork Marias River19721,727Good
I 15 over Dry Fork Marias River19721,727Good
S 21 over RR19721,725Good

All bridges nearby: Pondera County, MT bridge conditions · every bridge in Pondera County · Montana bridges.

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