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Every bridge in Judith Basin County, Montana

Name: Every bridge in Judith Basin County, Montana
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

45 inventoried bridges, busiest first

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

Judith Basin County, Montana, has 45 bridges in the 2025 National Bridge Inventory: 26 rated good, 12 fair, and 7 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
US 87 over Dawkins Branch	2021	3,335	Good
US 87 over Ross Fork Creek	1971	3,335	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Stockpass	1961	2,753	Good
US 87 over Judith River	1971	2,650	Fair
US 87 over RR	2012	2,650	Good
US 87 over Sage Creek	1993	2,601	Good
US 87 over Otter Creek	1964	2,361	Good
US 87 over Otter Creek	1964	2,361	Fair
US 87 over Wolf Creek	1993	2,300	Good
S 239 over Judith River	1961	324	Good
S 80 over Wolf Creek	1934	244	Fair
S 427 over Otter Creek	1957	136	Fair
S 551 over Arrow Creek	2010	118	Good
3RD Ave W over Otter Creek 036	1930	100	Fair
Ackley Lake Rd over Judith River 009	2008	100	Good
Antelop Creek Rd over Judith River 008	2011	100	Good
Double G Rd over Sage Creek 005	2002	100	Good
Echo Rd over Ross Fork Creek 017	1993	100	Good
Indian Butte Rd over Louse Creek 037	2009	100	Good
Lower Sage CR Rd over Sage Creek 007	2012	100	Good
Philbrook Rd over Judith River 013	1983	100	Fair
Porcupine Ridge Rd over Mid Fork Judith Rv 035	2008	100	Fair
Riverside Ranch Rd over Judith River 012	1940	100	Fair
S Peak Rd over Arrow Creek 038	2009	100	Good
Spencer Rd over Arrow Creek 025	2013	100	Good
Nfsr #487 over M Fk Judith River	1961	65	Fair
Nfsr #487 over S Fk Judith River	1958	65	Poor
Nfsr #487 over S Fk Judith River	1958	65	Fair
Nfsr #487 over S Fk Judith River	1958	65	Poor
Nfsr #487 over S Fk Judith River	1958	65	Poor
Nfsr #487 over S Fk Judith River	1958	65	Poor
Nfsr #487 over S Fk Judith River	1958	65	Poor
Nfsr #487 over S Fk Judith River	1958	65	Poor
Nfsr #251 over Dry Wolf CR	1976	50	Fair
Nfsr #251 over Placer Creek	1954	50	Good
Micks Dr over Ross Fork Creek	2021	40	Good
Nfdr 3350 over Dry Fork Belt Creek	1967	40	Fair
Nfsr #251 over Dry Wolf Creek	1994	40	Good
Judith River Rd over Judith River 015	2014	35	Good
Pioneer Rd over Judith River 011	2006	18	Good
Birch Rd over Ross Fork Creek 018	1925	16	Poor
Straw Rd over West Buffalo Creek 042	2014	10	Good

Source: FHWA National Bridge Inventory, 2025.

Judith Basin County bridge conditions · Montana bridges by county.

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