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Every bridge in Yellowstone County, Montana

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

290 inventoried bridges, busiest first

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

Yellowstone County, Montana, has 290 bridges in the 2025 National Bridge Inventory: 97 rated good, 186 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
I90 over MT Power RR Spur	2023	29,488	Good
I 90 over City County Drain Ditch	1966	27,985	Fair
King Ave W over Bbwa Canal	1994	26,602	Fair
Mullowney Ln over RR	2007	23,980	Good
Mullowney Ln over RR	2007	23,980	Fair
US 87 over Int Lockwood I 90	1966	23,199	Fair
US 87 over RR	1993	23,199	Fair
US 87 over Yellowstone River	1993	23,199	Fair
Central Ave over Bbwa Canal	1978	17,985	Fair
Grand Ave over Bbwa Canal	1981	15,881	Fair
S Billings Blvd over Sep Billings Blvd-i 90	1963	15,780	Fair
I 90 over Hogan Slough	1959	15,229	Fair
I 90 over Yellowstone River	2022	14,744	Fair
I-90 over Yellowstone River	2023	14,744	Fair
Mullowney Ln over Laurel Road	2007	13,348	Fair
S Shiloh Rd over Bbwa Canal	2000	12,688	Fair
I 90 over Bbwa Canal	1964	12,397	Fair
I 90 over Bbwa Canal	1964	12,397	Fair
I 90 over Canyon Creek	1959	12,397	Fair
I 90 over Canyon Creek	1959	12,397	Good
I 90 over Int Mossmain Road-p 4	1964	12,397	Fair
I 90 over Int Mossmain Road-p 4	1964	12,397	Fair
I 90 over Sep S 56TH St W	1961	12,397	Fair
I 90 over Sep S 56TH St W	1961	12,397	Fair
US 212 over Yellowstone River	1997	12,394	Good
US 310 over RR	2014	12,394	Fair
Bench Blvd over Alkali Creek	2011	12,314	Good
Old Hwy 312 over Bbwa Canal 166	2005	11,260	Good
Old Hwy 312 over Bbwa Canal 167	2005	11,260	Fair
Old Hwy 312 over Five Mile Creek 183	2005	11,260	Good
E Airport Rd over 6TH Ave N Bypass 21	2009	10,544	Fair
Wicks Ln over Bbwa Canal	1988	10,387	Fair
Aronson Ave over Alkali Creek 202	2008	10,114	Good
Aronson Ave over Bbwa Canal 203	2008	10,114	Fair
I 90 over Int Johnson Lane	1967	10,081	Fair
I 90 over Int Johnson Lane	1967	10,081	Fair
Central Ave Ramp over Underpass Avenue	1977	9,943	Fair
Zoo Dr over Shiloh Interchange 014	2001	9,917	Fair
I 90 over Int Laurel-p 4-rr	1964	9,599	Fair
I 90 over Int W Laurel-rr	2018	9,599	Fair
I 90 over Int W Laurel-rr	2019	9,599	Good
S 27TH St over Int 27TH St I 90	1966	9,538	Fair
I 90 over Hogan Slough	1959	9,451	Fair
I 90 over Int W Billings-u 1010	1994	9,451	Good
I 90 over Int W Billings-u 1010	1994	9,451	Good
I 90 over Int W Billings-u 1020	1964	9,451	Fair
I 90 over Int W Billings-u 1020	1964	9,451	Good
Blue Creek Rd over Blue Creek	1972	9,226	Good
S Billings Blvd over Yellowstone River	1972	9,226	Fair
17TH St W over Bbwa Canal	1974	9,172	Good
Montana Ave over U1024-25-rr	1960	8,576	Poor
Montana Ave over U1025-rr	1960	8,576	Poor
I 90 over Int Pinehill-i 94	1967	8,469	Fair
Hilltop Rd over Bbwa Canal	1960	8,274	Fair
Hilltop Rd over Lake Elmo Dr	1990	8,274	Good
Broadwater Ave over Bbwa Canal	1984	7,956	Fair
I 90 over Sep Wold Road	1967	7,580	Fair
I 90 over Sep Wold Road	1967	7,580	Fair
I 90 over Int Laurel-p 4-rr	1964	7,545	Fair
Old Hwy 312 over Seven Mile Creek 168	1947	7,544	Fair
Monad Rd over Bbwa Canal 151	1986	7,121	Good
N 27TH St over Bbwa Canal	1947	6,888	Fair
US 87-roundup Rd over Bbwa Canal	1977	6,235	Good
US 87-roundup Rd over Five Mile Creek	1977	6,235	Good
US 310 over RR	2015	6,197	Fair
Poly Dr over Bbwa Canal 040	1971	6,121	Fair
N 24TH St over Bbwa Canal 207	1988	5,858	Fair
US 212 over RR	1936	5,606	Fair
72ND St W over Canyon Creek 050	1959	5,570	Good
13TH St W over Bbwa Canal 181	1970	5,400	Fair
I 94 over Drainage	1968	5,221	Fair
Hesper Rd over Bbwa Canal 117	1938	4,906	Fair
Old Hardin Rd over Dry Creek 025	1994	4,564	Good
I 94 over Dickie Road	1967	4,471	Good
I 94 over Dickie Road	1967	4,471	Fair
S Frontage Rd over Canyon Creek	1959	4,412	Fair
S 522 (36-30) over Huntley Canal	1967	4,332	Fair
S 522 (36-31) over Pryor Creek	2011	4,332	Good
I 90 over Old Hardin Rd	1969	4,235	Fair
I 90 over Old Hardin Rd	1969	4,235	Fair
I 90 over Pryor Creek	1969	4,235	Fair
Old Hwy 312 over Twelve Mile Creek 169	1947	4,005	Fair
Old Hwy 312 over Yellowstone River 170	1949	4,005	Poor
I 90 over Int Arrow Creek	1972	3,946	Fair
I 90 over Int Arrow Creek	1972	3,946	Fair
I 90 over Pryor Creek	1969	3,946	Fair
I 90 over Sep Indian CR Frontage R	1972	3,946	Fair
I 90 over Sep Indian CR Frontage R	1972	3,946	Fair
S Shiloh Rd over Canyon Creek	1959	3,901	Fair
Virginia Ln over Bbwa Canal	1988	3,881	Good
S Shiloh Rd over Sep I 90	1959	3,188	Poor
Frontage Road 683 over Bbwa Canal 032	1965	3,078	Good
Sugar Ave over Sep I 90 011	1966	3,071	Good
1ST Ave over Big Ditch	1968	3,046	Good
I 94 over Int Huntley-s 522	1967	3,045	Fair
I 94 over Int Huntley-s 522	1967	3,045	Fair
I 94 over Pryor Creek	1967	3,045	Fair
I 94 over Pryor Creek	1967	3,045	Fair
I 94 over S 8TH Rd	1967	3,045	Fair
I 94 over S 8TH Rd	1967	3,045	Fair
S 32ND St W over Bbwa Canal 115	2004	3,011	Good
S 3 over North Fork Alkali Creek	1992	2,972	Good
Neibauer Rd over Bbwa Canal 037	1977	2,850	Fair
S 56TH St W over Canyon Creek 073	1967	2,802	Good
S 56th Street West over BBWA Canal	2024	2,802	Good
56TH St W over Big Ditch 071	1964	2,799	Fair
Riveroaks Dr over Bbwa Canal 083	1982	2,785	Good
Old Hwy 312 over Custer Coulee 171	1928	2,775	Fair
I 94 over Bighorn River	1963	2,613	Fair
I 94 over Bighorn River	1978	2,613	Fair
I 94 over East I Rd	1968	2,611	Fair
I 94 over East I Rd	1968	2,611	Good
I 94 over Huntley Canal	1968	2,611	Fair
I 94 over Huntley Canal	1968	2,611	Fair
I 94 over Int Ballantine	1968	2,611	Fair
I 94 over Int Ballantine	1968	2,611	Fair
I 94 over Rr-highline Canal Rd	1968	2,611	Fair
I 94 over Rr-highline Canal Rd	1968	2,611	Fair
I 94 over S 25TH Rd	1968	2,611	Fair
I 94 over S 25TH Rd	1968	2,611	Fair
US 87 over West Fork Razor Creek	1995	2,548	Good
443 Ramp-i 90 over Shiloh Interchange	2001	2,504	Good
Old US 10 over Big Ditch 051	1932	2,489	Poor
I 94 over Int Custer-s 310	1973	2,406	Fair
I 94 over Int Custer-s 310	1973	2,406	Fair
S Frontage Rd over Hogan`s Slough	1958	2,349	Fair
S 56TH St W over Canyon Creek Ditch 075	1925	2,295	Fair
I 94 over Bull Mountain Rd	1976	2,255	Fair
I 94 over Bull Mountain Rd	1976	2,255	Fair
I 94 over Cane St	1976	2,255	Fair
I 94 over Cane St	1976	2,255	Fair
I 94 over Fly Creek	1976	2,255	Fair
I 94 over Fly Creek	1976	2,255	Fair
I 94 over Int Waco-co Road	1973	2,255	Good
I 94 over Int Waco-co Road	1973	2,255	Fair
I 94 over S 39TH Rd	1976	2,255	Fair
I 94 over S 39TH Rd	1976	2,255	Fair
I 94 over S 44TH Rd	1976	2,255	Fair
I 94 over S 44TH Rd	1976	2,255	Fair
I 94 over Sian Hill Road	1976	2,255	Fair
I 94 over Sian Hill Road	1976	2,255	Fair
I 94 over Spring Creek Road	1973	2,255	Fair
I 94 over Spring Creek Road	1973	2,255	Fair
Shannon Rd over Canyon Creek Ditch	1984	1,855	Good
Shannon Rd over Canyon Creek Ditch 061	1984	1,811	Fair
Ramp to W I 90 over Shiloh Interchange	2001	1,646	Good
Bitterroot Dr over Five Mile Creek 119	1999	1,465	Good
Golf Course Rd over Big Ditch 029	1968	1,412	Fair
Inner Belt Loop over Alkali Creek 208	2014	1,178	Good
S 16TH Rd over Huntley Main Canal 006	1967	952	Fair
Valley Dr over Big Ditch 111	2008	937	Good
Valley Dr over High Ditch 112	1970	937	Fair
Danford Rd over Canyon Creek Ditch 108	1938	887	Fair
S 48TH St W over Bbwa Canal 107	2003	887	Good
S 48TH St W over Canyon Creek 106	1970	887	Good
S 48TH St W over Canyon Creek Ditch 085	1981	887	Fair
Laurel Airport Rd over Big Ditch 044	1950	881	Fair
Laurel Airport Rd over RR 045	2017	881	Good
S 64TH St W over Canyon Creek 048	1967	881	Good
Buffalo Trail Rd over Canyon Creek	1968	872	Good
Blue Creek Rd over Blue Creek	1982	801	Good
King Ave W over Canyon Creek	1966	785	Fair
S 88TH St W over Canyon Creek	1975	785	Good
Pryor Rd over Hamilton Creek 133	1997	765	Fair
Pryor Rd over Pryor Creek 009	2003	765	Good
Pryor Rd over Pryor Creek 010	1979	765	Fair
Pryor Rd over 4TH of July Creek 013	2001	596	Good
Pryor Rd over Pryor Creek 014	2001	596	Fair
27TH Ave W over Big Ditch 031	1988	594	Good
Mary St over Five Mile Creek 118	2007	575	Good
Old US 87 over E Fork Pryor Creek 174	1926	564	Fair
Old US 87 over Pryor Creek 069	1979	564	Fair
Hesper Rd over Big Ditch 113	1938	522	Fair
Hesper Rd over Canyon Creek 114	1972	522	Fair
Alkali Creek Rd over Alkali Creek 034	1989	484	Fair
Alkali Creek Rd over Alkali Creek 053	1969	484	Fair
Alkali Creek Rd. over Alkali Creek	2021	484	Good
Alkali Creek Road over Alkali Creek	2021	484	Good
Hwy 312 over RR	2004	401	Fair
S 568-fly CR Rd over Int Pompeys Pillar-i 94	1968	401	Fair
Byam Rd over Clarks Fk YELLOWSTONE024	1997	290	Good
Musselshell Trl Rd over Yellowstone River	1964	265	Fair
S 8TH Rd over Huntley Main Canal	2020	165	Good
W M Rd over Arrow Creek 099	1975	164	Fair
Custer Frtg Rd over Bull Mountain Creek 019	1940	147	Fair
Custer Frtg Rd over Fly Creek 002	2016	147	Good
Custer Frtg Rd over Mill Creek 018	1940	147	Fair
Custer Frtg Rd over Rough Coulee 033	1940	147	Fair
Custer Frtg Rd over Sand Coulee 003	1940	147	Fair
Custer Frtg Rd over Spring Creek 035	1940	147	Fair
Neibauer Rd over Big Ditch 038	1960	138	Fair
Danford Rd over Big Ditch 109	1936	125	Fair
Bernhardt Rd over Drainage Ditch 191	1980	122	Good
Custer Frtg Rd over Automatic Creek 036	1951	119	Fair
11TH St W over Bbwa Canal 047	2007	100	Good
12 Mile Rd over Crooked Creek 089	2010	100	Good
12 Mile Road over 12 Mile Creek 197	2005	100	Good
19TH Ave W over I-90	2020	100	Good
Alexander Rd over Bbwa Canal 077	1998	100	Good
Allendale Rd over Bbwa Canal 027	2001	100	Fair
Aqui Esta Dr over Blue Creek 124	1967	100	Fair
Arlington Ave SW over City County Drain 049	1995	100	Fair
Bbp over Yellowstone River	2022	100	Good
Bender Rd over Blue Creek 017	2015	100	Good
Briarwood Blvd over Blue Cr-golf Path 121	1979	100	Good
Buffalo Creek Rd over Buffalo Creek 132	2012	100	Fair
Butterfly Lake Ln over Bbwa Canal 196	2004	100	Good
Cane St over Fly Creek 136	1976	100	Good
Canyon Creek Rd over Canyon Creek 042	1965	100	Fair
Canyon Creek Rd over Canyon Creek 185	1996	100	Good
Castle Butte Rd over Cow Gulch 186	1997	100	Fair
Castle Butte Rd over Hibbard Creek 187	1997	100	Fair
Chicago Rd over Twelve Mile Creek 093	1989	100	Good
Clark Rd over Crooked Creek 080	2012	100	Good
Colleen Dr over Blue Creek 125	1979	100	Fair
Cut Throat Dr over Cove Ditch 015	1991	100	Fair
Duck Creek Rd over Duck Creek 021	1992	100	Good
Duck Creek Rd over Duck Creek 022	1967	100	Fair
Duck Creek Rd over Yellowstone River 020	1991	100	Fair
E I Rd over Arrow Creek 145	1964	100	Fair
E I Rd over Huntley Main Canal 144	2004	100	Good
Elysian Rd over Hogan`s Slough 184	1994	100	Fair
Esther Rose Ln over Canyon Creek Ditch 192	1985	100	Fair
Fly Creek Rd over Fly Creek 139	1960	100	Fair
Fly Creek Rd over Fly Creek 140	1996	100	Fair
Grelck Ln over Bbwa Canal	2022	100	Good
Hillbrooke Ave over Big Ditch 198	2006	100	Good
Hogan Rd over Pryor Creek 007	1979	100	Fair
Homer Davis Rd over Bbwa Canal 095	2000	100	Good
Homer Davis Rd over Twelve Mile Creek 041	1999	100	Fair
Jellison Rd over Blue Creek 127	1993	100	Good
Longmeadow Dr over Cove Ditch 016	1991	100	Fair
Lost Trail Road over Canyon Creek	2020	100	Good
Lower Canal Rd over Arrow Creek 102	1950	100	Fair
Lower Canal Rd over Fly Creek 143	1983	100	Fair
Mailbox Rd over Bbwa Canal 087	1967	100	Fair
Mailbox Rd over Crooked Creek 088	2014	100	Good
Main Street over Alkali Creek 209	1975	100	Fair
Markegard Rd over Cove Ditch 067	1986	100	Fair
Mcdougall Dr over City County Drain 200	1995	100	Fair
N 15TH Rd over No Name 149	2004	100	Good
N 17TH Rd over Arrow Creek 147	2002	100	Good
N 17TH Rd over Arrow Creek 148	1983	100	Good
N 19TH Rd over Arrow Creek 100	1995	100	Fair
N Canal Dr over Huntley Main Canal 104	1975	100	Good
N Hart Rd over Big Ditch 065	1994	100	Good
Old Hwy 10 over Bighorn River 126	1930	100	Fair
Oswald Rd over RR 009	2009	100	Fair
Pheasant Brook Dr over Big Ditch	2003	100	Good
Pheasant Brook Dri over Big Ditch	2003	100	Good
Pineview Rd over Buffalo Creek 129	1966	100	Fair
Pineview Rd over Deadman Creek 128	1997	100	Fair
Pryor Creek Rd over Int Pryor Creek 012	1969	100	Fair
Pryor Creek Rd over Pryor Creek 001	1966	100	Fair
Razor Creek Rd over Razor Creek 164	1977	100	Fair
River Rd over Spring Creek 023	1969	100	Fair
Robindale Dr over Blue Creek 123	2013	100	Fair
Roland Dr over Canyon Creek Ditch 056	1972	100	Fair
S 44TH St W over Canyon Creek Ditch 190	1965	100	Fair
S 47 over Int I 94	1972	100	Fair
S 80TH St W over Canyon Creek 030	2001	100	Fair
S 8TH Ave over Sep I 90 010	1967	100	Fair
S Laurel Rd over Bbwa Canal 028	2002	100	Good
Scandia Rd over Razor Creek 092	2005	100	Good
Shamrock Dr over Bbwa Canal 039	2004	100	Fair
Shepherd Acton Rd over Bbwa Canal 086	1984	100	Fair
Shepherd Rd over Razor Creek 090	2017	100	Good
Sherrod Ln over Fly Creek 142	1973	100	Good
Sportsman Park Rd over Drainage	2019	100	Good
Squaw Creek Rd over Pryor Creek 004	1978	100	Fair
Strauch Rd over Bbwa Canal 063	2014	100	Good
Strauch Rd over Sep I 90 013	1964	100	Fair
Thiel Rd over Clarks Fk YELLOWSTONE026	1969	100	Fair
Trewin School Rd over Big Ditch 066	1985	100	Fair
Vermilion Rd over Twelve Mile Creek 091	2005	100	Good
W Beartooth Dr over Big Ditch 161	2018	100	Good
W I Rd over Custer Coulee 098	1962	100	Poor
Yard Office Road over Big Ditch 110	1982	100	Fair
Yeoman Rd over Bbwa Canal 094	2010	100	Good
Bundy Rd over Yellowstone River	2001	87	Fair
S 4TH Rd over Huntley Main Canal 146	1986	79	Good
Highline Canal Rd over Huntley Main Canal 152	1982	76	Fair
S 28TH Rd over Sep I 94 005	1968	72	Fair
21 Mile Rd over N Fk Crooked Creek 079	1965	68	Fair
Benedict Gulch Rd over Cove Ditch 046	1996	67	Good
N 18TH Rd over Arrow Creek 150	1987	52	Fair
Lower Canal Rd over Huntley Main Canal 154	1982	12	Fair
Anita Res Acc Rd over Anita Dam Spillway	1937	10	Poor
S 12TH Rd over Huntley Main Canal 156	1976	9	Fair
Anita Dam Rd over Fly Creek 138	2015	3	Good

Source: FHWA National Bridge Inventory, 2025.

Yellowstone County bridge conditions · Montana bridges by county.

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