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Every bridge in Fergus County, Montana

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

158 inventoried bridges, busiest first

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

Fergus County, Montana, has 158 bridges in the 2025 National Bridge Inventory: 52 rated good, 97 fair, and 9 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-e Main St over Mill Ditch	1922	8,747	Fair
US 87-w Main St over Big Spring Creek	1962	5,357	Fair
US 191-1st Ave N over Big Spring Creek	1960	5,189	Fair
US 87 over Boyd Creek	1942	2,831	Fair
US 191-kendall Rd over Big Spring Creek	1976	2,663	Fair
US 87 over Beaver Creek	2009	2,589	Good
US 87 over Cottonwood Creek	2009	2,589	Fair
W Brassey St over Big Spring Creek	1920	2,412	Fair
US 191 over Dawkins Branch	2021	2,328	Good
US 87 over Drainage	2021	2,319	Good
US 87 over Little Rock Cr-stockpass	2009	2,319	Good
US 87 over Rock Creek	2021	2,319	Good
US 191 over Ross Fork Creek	1990	2,250	Fair
US 191 over Ross Fork Creek	1990	2,250	Good
Upper Spring CR Rd over Mill Ditch	1958	1,955	Fair
SW Ash St over Big Spring Creek	1962	1,394	Fair
US 87 over Boyd Creek	1942	1,295	Fair
US 87 over Drainage	1930	1,148	Fair
US 87 over Drainage	1939	1,148	Fair
US 87 over Drainage	1939	1,148	Fair
US 87 over Drainage	1939	1,067	Fair
US 87 over Drainage	1939	1,067	Fair
US 87 over Drainage	1939	1,067	Fair
US 87 over Drainage	1939	1,067	Poor
US 87 over Drainage	1939	1,067	Fair
US 87 over Drainage	1939	1,067	Fair
US 87 over Irrigation Reservoir	1939	1,067	Fair
US 87 over N Fork Mcdonald Creek	1939	1,067	Fair
US 87 over S Fork Mcdonald Creek	1939	1,067	Fair
US 87 over Elk Creek	1952	930	Fair
US 191 over Warm Springs Creek	2011	851	Fair
E Boulevard St over Big Spring Creek	1920	675	Fair
US 191 over Armells Creek	1963	655	Fair
US 191 over Missouri River	1959	655	Poor
US 191 over Box Elder CR	2002	644	Good
S 200 over Mcdonald Creek	1967	553	Good
S 19 over Chippewa Creek	1962	483	Good
S 19 over Fords Creek	1962	483	Good
S 19 over Little Box Elder Creek	1962	483	Good
S 19 over Mcdonald Creek	1962	483	Good
Winifred Hwy over Dog Creek	1953	477	Fair
Winifred Hwy over Dog Creek	1954	477	Fair
Winifred Hwy over Drainage	1954	477	Fair
S 19 over North Fork Bear Creek	1960	465	Good
S 19 over South Fork Bear Creek	1960	465	Good
6TH Ave S over Big Spring Creek 133	1962	437	Poor
Winifred Hwy over Dog Creek	1954	384	Fair
US 191 over Box Elder Creek	1942	382	Poor
US 191 over Box Elder Creek	1942	382	Fair
P-81 over Warm Spring Creek	2020	377	Good
S 81 over Warm Spring Creek	2008	377	Good
S 81 over Warm Spring Creek	1949	377	Fair
S 81 over Warm Spring Creek	1969	377	Fair
S-81 over Wolf Creek	2022	371	Good
S 81 over Coffee Creek	1952	347	Fair
Fish Hatchery Rd over Big Spring Creek	1996	328	Good
Fish Hatchery Rd over E Fork Big Spring Creek	1966	328	Fair
P 81 over Judith River	2020	265	Good
S 81 over Dry Wolf Creek	1949	265	Fair
S 238-e Fork Rd over E Fork Big Spring Creek	1958	217	Fair
Hanover Rd over Big Spring Creek	1966	177	Fair
S 80 over Arrow Creek	1949	171	Fair
Dy Trail over Dog Creek 110	1962	168	Fair
Stafford Ferry Rd over Cutbank Creek 011	2018	168	Good
Stafford Ferry Rd over Taffy Creek	2020	168	Good
S 547 over Wolf Creek	1977	137	Good
Joyland Rd over Big Spring Creek	1999	123	Good
Forest Grove Rd over S Fork Mcdonald CR	2021	120	Good
Forest Grove Rd over S Fork Mcdonald CR 046	1986	120	Fair
Forest Grove Rd over S Fork Mcdonald CR 070	1982	120	Fair
Forest Grove Rd over S Fork Mcdonald CR 071	1970	120	Fair
Forest Grove Rd over S Fork Mcdonald CR 072	2011	120	Good
Forest Grove Rd over S Fork Mcdonald Creek	2021	120	Good
Hanover Rd over Judith River	1970	114	Fair
2ND Avenue over Big Spring Creek 060	1930	100	Fair
3 Mile Rd over Salt Creek 055	1962	100	Fair
72 Bench Rd over Warm Springs Creek 078	1980	100	Fair
Allen Road over Coffee Creek	2021	100	Good
Alton Cutoff over Wolf Creek 091	1979	100	Fair
Andrews Road over Dog Creek	2019	100	Good
Armells Road over Armells Creek	2022	100	Fair
Arntzen Ln over Dog Creek	2020	100	Fair
Bain Street over Wolf Creek	2022	100	Good
Bally Dome Rd over Wolf Creek 089	1979	100	Fair
Butcher Road over Dog Creek	2024	100	Good
Christina St W over Dog Creek	2020	100	Good
Cimrhakl Rd over Sacagawea Riv 114	1978	100	Fair
Cottonwood Cutoff over Cottonwood Creek 025	2012	100	Good
County Road 116 over Armells Creek 115	1977	100	Fair
County Road 144 over Dog Creek	2022	100	Good
County Road 220 over Fords Creek 006	1981	100	Fair
County Road over Beaver Creek 143	2012	100	Good
Crabtree Rd over Dry Wolf Creek 092	1962	100	Fair
Cunningham Rd over Dry Wolf Creek 094	1982	100	Fair
Donaldson Rd over Dry Wolf Creek 090	1982	100	Fair
Erle Ln over Dog Creek 102	1981	100	Fair
Fairview Rd over S Fork Mcdonald CR 123	1962	100	Poor
Farren Hill Road over Middle Fork Beaver CR	2021	100	Good
Fort Maginnis Rd over Fords Creek 141	2012	100	Good
Graves Rd over Flatwillow Creek 001	1988	100	Fair
Grinde Rd over Warm Springs Creek 009	1986	100	Fair
Horse Ranch Rd over Armells Creek 117	2017	100	Good
Horse Ranch Rd over Box Elder Creek 120	1962	100	Good
Jenni Rd over Beaver Creek 030	1929	100	Fair
Mabee Rd over Blood Creek 040	2013	100	Good
Matovich Rd over Mcdonald Creek	2023	100	Good
Miller Street over Mill Ditch 041	1973	100	Fair
N Dawes Street over Big Spring Creek 061	1940	100	Poor
N Denton Rd over Coffee Creek 081	1979	100	Fair
Olies Rd over Wolf Creek 088	1983	100	Fair
Pacer Coulee Rd over Dry Wolf Creek 093	1990	100	Fair
Pine Street over Big Spring Creek 058	1962	100	Fair
Pioneer Road over Coyote Creek	1979	100	Fair
Poor Farm Loop over Big Spring Creek	1908	100	Fair
Rose Creek Rd over Rose Creek 108	1980	100	Fair
Roundhouse Rd over Big Spring Creek 135	2016	100	Good
S Fork Rd over Flatwillow Creek 124	1986	100	Fair
Salt Creek Rd over Dog Creek 054	1962	100	Fair
Salt Creek Rd over Salt Creek 053	1984	100	Fair
Sandrock Rd over Warm Springs Creek 077	2010	100	Good
Scott Crossing over Big Spring Creek 033	2009	100	Good
Seright Rd over Rock Creek 045	1962	100	Fair
Single Pine Rd over Cottonwood Creek 028	1989	100	Fair
Stone Barn Ln over Rock Creek 142	2012	100	Good
Surenuff Rd over S Fork Mcdonald CR 002	1982	100	Fair
Third Avenue S over Little Casino Creek 138	2006	100	Poor
Timberline Rd over Big Spring Creek 134	2012	100	Good
Tognetti Rd over Judith River 037	1995	100	Good
Tognetti Rd over Ross Fork 038	1995	100	Fair
Tyler Cutoff over Mcdonald Creek 125	1975	100	Fair
Upper Chippewa Rd over Chippewa Creek 004	1980	100	Fair
Upper Chippewa Rd over Chippewa Creek 021	1962	100	Fair
Upper Elk CR Rd over Elk Creek 126	1982	100	Fair
Valentine Rd over Blood Creek 131	1980	100	Fair
Valentine Rd over Blood Creek 132	1986	100	Fair
Valentine Rd over Box Elder Creek 130	1983	100	Fair
W Broadway Street over Big Spring Creek 062	1940	100	Poor
Washboard Rd over Dog Creek 101	1983	100	Fair
Water Street over Big Spring Creek 059	1930	100	Fair
Wilder Trail over Sacagawea Riv 113	2015	100	Fair
Yellow Water Rd over Elk Creek 136	1974	100	Fair
Lower Rd over Coyote Creek 085	1977	73	Fair
Lower Rd over Wolf Creek 086	1962	73	Fair
Nfsr #275 over Rock Creek	1954	50	Fair
Nfsr #275 over Rock Creek	1938	50	Fair
Cottonwood CR Rd over Cottonwood Creek 027	2012	45	Good
Cottonwood CR Rd over Cottonwood Creek 140	2013	45	Good
U Bet Rd over Ross Fork Creek 026	1987	36	Fair
Carroll Trail over Beaver Creek 138	2013	31	Good
Glengary Rd over Cottonwood Creek 022	2013	31	Good
Lwr Cottonwood CR over Cottonwood Creek 034	2009	26	Fair
Fws 210 over Sand Creek	2023	25	Good
S Coffee CR Rd over Wolf Creek 076	1979	14	Fair
Bear Springs Rd over Wolf Creek 013	1980	13	Fair
Judith River Rd over Judith River 012	2001	13	Good
Hitchcock Rd over Dry Wolf Creek 095	1980	4	Fair
Hitchcock Rd over Dry Wolf Creek 096	1980	4	Fair
Road 220 over Carroll Coulee	1963	1	Poor

Source: FHWA National Bridge Inventory, 2025.

Fergus County bridge conditions · Montana bridges by county.

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