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Every bridge in Broadwater County, Montana

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

37 inventoried bridges, busiest first

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

Broadwater County, Montana, has 37 bridges in the 2025 National Bridge Inventory: 10 rated good, 23 fair, and 4 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
US287 over Beaver Creek	1992	6,930	Fair
US 12 over Missouri River	1935	6,843	Fair
US 287 over Int Three Forks I 90	2012	6,444	Fair
US 287 over Mud Spring Gulch	2013	6,444	Good
US 287 over Deep Creek	2012	5,485	Fair
US 287 over Missouri River	2020	5,250	Good
US 287 over RR	2020	5,250	Good
US 287 over Six Mile Creek	2020	5,250	Good
US 287 over Milligan Creek	1968	1,553	Fair
US 12 over Deep Creek	2007	1,323	Fair
US 12 over Deep Creek	2015	720	Fair
US 12 over Deep Creek	2015	720	Good
US 12 over Deep Creek	2015	720	Good
US 12 over Deep Creek	2014	720	Fair
US 12 over Deep Creek	2014	720	Fair
US 12 over Deep Creek	2014	720	Fair
S 285 over Toston Canal	1948	422	Poor
S 285 over Crow Creek	1948	206	Fair
Hwy 287 Bypass over Missouri River 019	1920	178	Poor
Clopton Lane over Deep Creek	2017	100	Good
County Rd 407 (car over Deep Creek	2018	100	Good
Crow Creek Rd over Crow Creek 014	1967	100	Fair
Dry Hollow Rd over Broadwater Missouri 015	1976	100	Fair
Ferry St over Broadwater Missouri 020	1980	100	Fair
Flynn Ln over Broadwater Missouri 006	1976	100	Poor
Greaves Rd over Broadwater Missouri 017	1976	100	Fair
Litening Barn Road over Deep Creek	2017	100	Good
Lombard Rd over Broadwater Missouri 018	1976	100	Fair
Lower Deep CR Road over Deep Creek	1978	100	Fair
Lower Deep Creek R over Deep Creek	1978	100	Fair
N Fork Rd over Deep Creek 008	2015	100	Good
Sixmile Rd over Broadwater Canal 016	1976	100	Fair
Crow Creek Road over Crow Creek	1967	50	Fair
Crow Creek Road over Crow Creek	1967	50	Fair
Weasel Ck Road over Crow Creek	1983	20	Fair
Canton Lane over CF WMA - Eastside Canal	1974	5	Fair
Lower Ray Cr Road over CF WMA - Eastside Canal	1974	5	Poor

Source: FHWA National Bridge Inventory, 2025.

Broadwater County bridge conditions · Montana bridges by county.

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