Big Horn County, Montana bridges

Big Horn County has 133 bridges and culverts in the National Bridge Inventory, the oldest built in 1930. 5 (4%) are rated poor. The most common type is stringer/multi-beam or girder (58%).

Bridges: 133
Good: 29%
Fair: 68%
Poor: 4%; 5 bridges
Average age: 46.5 yrs
Posted or closed: 7

Map of bridges in Big Horn County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in Big Horn County

Type at least two characters, or pick a condition or type, to search every bridge in the county.

Condition

Good29%(38)

Fair68%(90)

Poor4%(5)

When they were built

Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

I 90 over Irrigation Canal
8,516 vehicles/day
Fair
Irr-S 47 over Int W Hardin I 90
5,396 vehicles/day
Fair
IRR - I 90 over Int Dunmore
4,473 vehicles/day
Fair
IRR - I 90 over Int Dunmore
4,473 vehicles/day
Fair
IRR - I 90 over Bighorn River
4,258 vehicles/day
Good

Longest

IRR - I 90 over Bighorn River
594 ft
Good
IRR - I 90 over Bighorn River
594 ft
Fair
I 90 Frontage RD over Bighorn River
591 ft
Fair
IRR - S 313 over Bighorn River
576 ft
Fair
IRR BIA RTE 91 over Big Horn River
525 ft
Fair

Oldest

Warman Loop over Bighorn Canal 018
Built 1930
Fair
Old HWY 87 over Two Leggins Canal 0
Built 1931
Poor
Battlefield Road over Deep Coulee
Built 1938
Fair
Battlefield Road over Medicine Tail Coulee
Built 1938
Poor
Soap Creek RD over Big Horn Canal 009
Built 1946
Poor

All bridges in Big Horn County

Busiest first · showing 1–133 of 133

Bridges in Big Horn County
Bridge	Location	Built	Type	Length	Daily traffic	Condition
I 90 over Irrigation Canal No. I00090498+04621	3.1M S Hardin	1971	Culvert	25 ft	8,516	Fair
Irr-S 47 over Int W Hardin I 90 No. P00048001+00601	Hardin-N Crawford Ave	1970	Stringer/Multi-beam or Girder	285 ft	5,396	Fair
IRR - I 90 over Int Dunmore No. I00090503+02871	5.6M N Crow Agency	1959	Stringer/Multi-beam or Girder	119 ft	4,473	Fair
IRR - I 90 over Int Dunmore No. I00090503+02872	5.6M N Crow Agency	1959	Stringer/Multi-beam or Girder	119 ft	4,473	Fair
IRR - I 90 over Bighorn River No. I00090498+01011	Hardin	1971	Stringer/Multi-beam or Girder	594 ft	4,258	Good
IRR - I 90 over Bighorn River No. I00090498+01012	Hardin	1971	Stringer/Multi-beam or Girder	594 ft	4,258	Fair
IRR - I 90 over Sarpy Road-S 384 No. I00090498+07331	1.2M E Hardin	1971	Stringer/Multi-beam or Girder	120 ft	4,258	Fair
IRR - I 90 over Sarpy Road-S 384 No. I00090498+07332	1.2M E Hardin	1971	Stringer/Multi-beam or Girder	120 ft	4,258	Fair
I 90 over Sep County Road No. I00090474+01891	21.1M E Billings	1972	Slab	79 ft	3,946	Fair
I 90 over Sep County Road No. I00090474+01892	21.1M E Billings	1972	Slab	79 ft	3,946	Fair
IRR - I 90 over Int Crow Agency No. I00090509+02311	Crow Agency	1959	Stringer/Multi-beam or Girder	134 ft	3,889	Fair
IRR - I 90 over Int Crow Agency No. I00090509+02312	Crow Agency	1959	Stringer/Multi-beam or Girder	134 ft	3,889	Fair
IRR - I 90 over Little Bighorn River No. I00090509+05611	0.6M S Crow Agency	1949	Stringer/Multi-beam or Girder	130 ft	3,889	Fair
IRR - I 90 over Little Bighorn River No. I00090509+05612	0.6M S Crow Agency	1959	Stringer/Multi-beam or Girder	164 ft	3,889	Fair
IRR - I 90 over RR (not in Use) No. I00090496+06251	Hardin	1971	Stringer/Multi-beam or Girder	163 ft	3,853	Fair
IRR - I 90 over RR (not in Use) No. I00090496+06252	Hardin	1971	Stringer/Multi-beam or Girder	163 ft	3,853	Fair
I 90 over Fly Creek No. I00090479+03981	16.8M W Hardin	1972	Stringer/Multi-beam or Girder	114 ft	3,736	Good
I 90 over Fly Creek No. I00090479+03982	16.8M W Hardin	1972	Stringer/Multi-beam or Girder	115 ft	3,736	Good
I 90 over RR No. I00090480+08971	14.9M W Hardin	1972	Stringer/Multi-beam or Girder	184 ft	3,736	Fair
I 90 over RR No. I00090480+08972	14.9M W Hardin	1972	Stringer/Multi-beam or Girder	184 ft	3,736	Fair
I 90 over Int Toluca County Road No. I00090484+04701	11.2M W Hardin	1972	Stringer/Multi-beam or Girder	136 ft	3,736	Fair
I 90 over Int Toluca County Road No. I00090484+04702	11.2M W Hardin	1972	Stringer/Multi-beam or Girder	136 ft	3,736	Good
IRR - US 212 over Rosebud Creek No. P00037024+09601	Busby	1992	Stringer/Multi-beam or Girder	77 ft	2,811	Good
IRR - US 212 over Muddy Creek No. P00037036+07611	5M W Lame Deer	1974	Stringer/Multi-beam or Girder	94 ft	2,811	Good
IRR - I 90 over Little Bighorn River No. I00090511+06051	2.5M S Crow Agency	1956	Tee Beam	156 ft	2,693	Fair
IRR - I 90 over Little Bighorn River No. I00090511+06052	2.5M S Crow Agency	1976	Stringer/Multi-beam or Girder	161 ft	2,693	Fair
IRR - US 212 over Int Custer Batlfld I 90 No. P00037000+00001	1M S Crow Agency	1959	Stringer/Multi-beam or Girder	209 ft	2,397	Fair
IRR - I 90 over Int Wyola-S 457 No. I00090544+00071	Wyola	1985	Stringer/Multi-beam or Girder	131 ft	2,193	Fair
IRR - I 90 over Int Wyola-S 457 No. I00090544+00072	Wyola	1985	Stringer/Multi-beam or Girder	131 ft	2,193	Fair
IRR - I 90 over Int Aberdeen No. I00090549+08821	Aberdeen	1985	Slab	78 ft	2,193	Fair
IRR - I 90 over Int Aberdeen No. I00090549+08822	Aberdeen	1985	Slab	79 ft	2,193	Fair
IRR - I 90 over Int Garryowen No. I00090514+07721	5.6M S Crow Agency	1976	Stringer/Multi-beam or Girder	101 ft	2,082	Fair
IRR - I 90 over Int Garryowen No. I00090514+07722	5.6M S Crow Agency	1976	Stringer/Multi-beam or Girder	101 ft	2,082	Fair
IRR - I 90 over Little Bighorn River No. I00090517+05021	8M S Crow Agency	1956	Tee Beam	158 ft	2,082	Fair
IRR - I 90 over Little Bighorn River No. I00090517+05022	8M S Crow Agency	1980	Stringer/Multi-beam or Girder	165 ft	2,082	Good
IRR - I 90 over Sep Reno Creek Road No. I00090517+08091	8.7M S Crow Agency	1980	Stringer/Multi-beam or Girder	103 ft	2,082	Fair
IRR - I 90 over Sep Reno Creek Road No. I00090517+08092	8.7M S Crow Agency	1980	Stringer/Multi-beam or Girder	103 ft	2,082	Fair
IRR - I 90 over Sep County Road No. I00090520+03611	10.5M N Lodge Grass	1980	Slab	78 ft	2,082	Fair
IRR - I 90 over Sep County Road No. I00090520+03612	10.5M N Lodge Grass	1980	Slab	80 ft	2,082	Fair
IRR - I 90 over Sep County Road No. I00090523+06361	6.8M N Lodge Grass	1980	Slab	79 ft	2,082	Fair
IRR - I 90 over Sep County Road No. I00090523+06362	6.8M N Lodge Grass	1980	Slab	79 ft	2,082	Fair
IRR - I 90 over Int Lodge Grass No. I00090530+06771	Lodge Grass	1980	Stringer/Multi-beam or Girder	103 ft	2,013	Fair
IRR - I 90 over Int Lodge Grass No. I00090530+06772	Lodge Grass	1980	Stringer/Multi-beam or Girder	103 ft	2,013	Fair
IRR - I 90 over Sep Local Road No. I00090532+04021	1.9M S Lodge Grass	1985	Slab	81 ft	2,013	Fair
IRR - I 90 over Sep Local Road No. I00090532+04022	1.9M S Lodge Grass	1985	Slab	81 ft	2,013	Fair
IRR - I 90 over Owl Creek No. I00090532+07341	2.5M S Lodge Grass	1985	Stringer/Multi-beam or Girder	118 ft	2,013	Good
IRR - I 90 over Owl Creek No. I00090532+07342	2.5M S Lodge Grass	1985	Stringer/Multi-beam or Girder	118 ft	2,013	Fair
IRR - I 90 over Sep Local Road No. I00090533+08171	3.7M S Lodge Grass	1985	Slab	61 ft	2,013	Fair
IRR - I 90 over Sep Local Road No. I00090533+08172	3.7M S Lodge Grass	1985	Slab	61 ft	2,013	Fair
IRR - I 90 over Sep Local Road No. I00090539+05881	8.7M S Lodge Grass	1985	Slab	81 ft	2,013	Fair
IRR - I 90 over Sep Local Road No. I00090539+05882	8.7M S Lodge Grass	1985	Slab	81 ft	2,013	Fair
Irr-S 47-3rd ST E over Int E Hardin I 90 No. P00048000+00001	HARDIN-3rd ST E	1971	Stringer/Multi-beam or Girder	266 ft	1,916	Fair
I 90 Frontage RD over Bighorn River No. S00384000+05101	1M E Hardin	2007	Stringer/Multi-beam or Girder	591 ft	1,455	Fair
IRR BIA RTE 6 over Little Bighorn River No. 00000000000C226	At Crow Agency	1999	Tee Beam	122 ft	1,000	Good
IRR - S 451 over Little Bighorn River No. S00451002+07801	3M S Garryowen Int	1980	Stringer/Multi-beam or Girder	161 ft	915	Good
IRR - S 451 over Little Bighorn River No. S00451008+06371	8M S Garryowen Int	1955	Tee Beam	136 ft	915	Fair
IRR - S 313 over Williams Coulee No. 000000202106632	1M S Hardin	2021	Slab	73 ft	899	Good
IRR - S 313 over Two Leggin Canal No. S00313006+02721	5M S Hardin	1989	Tee Beam	58 ft	899	Good
IRR - S 313 over Two Leggin Canal No. S00313007+08411	7M SW Hardin	1991	Stringer/Multi-beam or Girder	72 ft	899	Good
IRR - S 313 over Overflow Ditch No. S00313008+00411	7M SW Hardin	1988	Culvert	26 ft	899	Fair
IRR - S 313 over Bighorn River No. S00313008+03271	7M SW Hardin	1958	Girder and Floorbeam System	576 ft	899	Fair
S 47 over Low Line Ditch No. P00048005+04501	5M N Hardin	1989	Stringer/Multi-beam or Girder	42 ft	852	Good
IRR - S 313 over Rotten Grass Creek No. S00313023+08091	Saint Xavier	1983	Slab	60 ft	621	Fair
IRR - S 313 over Soap Creek No. S00313032+06911	9M SW ST Xavier	1963	Stringer/Multi-beam or Girder	103 ft	621	Good
IRR - S 314 over Squirrel Creek No. S00314002+05001	Decker	1981	Culvert	27 ft	568	Fair
Old HWY 87 over Peritsa Creek No. 000000202002264	6M W Hardin	2020	Culvert	26 ft	564	Good
Old HWY 87 over Fly Creek 090 No. L02313006+08001	15M W Hardin	2002	Stringer/Multi-beam or Girder	75 ft	564	Fair
Old HWY 87 over RR 025 No. L02313010+07001	12M W Hardin	2006	Stringer/Multi-beam or Girder	287 ft	564	Fair
Old HWY 87 over Two Leggins Canal 0 No. L02313021+06001	1M W Hardin	1931	Tee Beam	33 ft	564	Poor
IRR - S 73 over Little Bighorn River No. S00463000+03221	Lodge Grass	1980	Stringer/Multi-beam or Girder	103 ft	548	Fair
IRR - S 451 over Lodge Grass Creek No. S00451015+07741	Lodge Grass	1955	Tee Beam	65 ft	539	Fair
Sarpy Creek RD over Little Bighorn River No. S00384001+06281	3M E Hardin	1962	Stringer/Multi-beam or Girder	185 ft	514	Fair
IRR - S 313 over Indian Service Canal No. S00313035+00261	10M SW ST Xavier	1962	Stringer/Multi-beam or Girder	67 ft	503	Fair
IRR - S 314 over Spring Creek No. S00314009+03001	5M N Decker	1981	Culvert	46 ft	499	Fair
IRR BIA RTE 14 over Big Shoulder Creek No. 00000000000C202	7.2KM South of Crow Agncy	1963	Stringer/Multi-beam or Girder	20 ft	440	Fair
IRR BIA RTE 1 over Big Horn Canal No. 00000000000C227	16 KM W of Crow Agency	2001	Culvert	30 ft	400	Good
IRR - S 314 over Rosebud Creek No. S00314033+08871	11M SW Busby	1983	Stringer/Multi-beam or Girder	75 ft	388	Fair
IRR - S 314 over Davis Creek No. S00314042+03731	3M SW Busby	1983	Stringer/Multi-beam or Girder	56 ft	388	Good
IRR - S 451 over Little Bighorn River No. S00451024+09811	4M N Wyola	1950	Stringer/Multi-beam or Girder	120 ft	382	Fair
IRR BIA RTE 91 over Big Horn River No. 00000000000C208	2.4 KM West of St. Xavier	1970	Stringer/Multi-beam or Girder	525 ft	360	Fair
IRR BIA RTE 91 over Rotten Grass Creek No. 00000000000C207	0.8 KM SW of St. Xavier	1970	Stringer/Multi-beam or Girder	67 ft	350	Fair
IRR BIA RTE 16 over Lodge Grass Creek No. 00000000000C203	At Lodge Grass	1962	Slab	60 ft	300	Fair
IRR - S 451 over Pass Creek No. S00451033+03421	3M S Wyola	1949	Stringer/Multi-beam or Girder	65 ft	299	Good
IRR - S 451 over Pass Creek No. S00451034+00441	4M S Wyola	1949	Stringer/Multi-beam or Girder	65 ft	299	Fair
S384 over Dry Creek No. 000000202308049	7M E Hardin	2023	Culvert	23 ft	220	Good
Sarpy Creek RD over Tullock Creek No. S00384015+01191	16M E Hardin	1968	Stringer/Multi-beam or Girder	93 ft	220	Good
County Road 103 over Tongue River 054 No. L02103000+04001	3M NE Decker	1976	Stringer/Multi-beam or Girder	306 ft	203	Fair
County Road 103 over Hanging Woman Creek 056 No. L02103021+07001	24M NE Decker	1986	Tee Beam	78 ft	203	Fair
IRR BIA RTE 73 over Rotten Grass Creek No. 00000000000C217	7.6 KM SE of ST Xavier	1980	Stringer/Multi-beam or Girder	68 ft	200	Fair
IRR BIA RTE 73 over Rotten Grass Creek No. 00000000000C218	10.6 KM SE of ST Xavier	1980	Stringer/Multi-beam or Girder	63 ft	200	Fair
IRR BIA RTE 73 over Rotten Grass Creek No. 00000000000C220	15.3 KM SE of St. Xavier	1986	Stringer/Multi-beam or Girder	78 ft	200	Fair
IRR BIA RTE 73 over Big Horn Canal No. 00000000000C221	4.5 KM SE of St. Xavier	1986	Stringer/Multi-beam or Girder	47 ft	200	Good
Little Horn RD over Pass Creek 071 No. L02202000+05001	1M SW Wyola	2004	Stringer/Multi-beam or Girder	102 ft	183	Good
Little Horn RD over Little Bighorn River 072 No. L02202009+07001	8M SW Wyola	1952	Truss - Thru	92 ft	183	Fair
Little Horn RD over Little Bighorn River 073 No. L02202012+02001	11M SW Wyola	1996	Stringer/Multi-beam or Girder	106 ft	183	Good
Battlefield Road over Deep Coulee No. 1380001P0000000	I-90 Exit 510 East on U	1938	Culvert	21 ft	150	Fair
Battlefield Road over Medicine Tail Coulee No. 1380002P0000000	I-90 Exit 510 East on U	1938	Culvert	46 ft	150	Poor
Pass Creek RD over Pass Creek 021 No. L02273000+01001	5M SE Wyola	1979	Tee Beam	62 ft	109	Fair
IRR BIA RTE 8 over Pryor Creek No. 00000000000C225	1.7 KM West of Pryor	1997	Stringer/Multi-beam or Girder	76 ft	100	Good
Rail RD over Two Leggins Canal No. 000000202102259	1M SW Hardin	2021	Stringer/Multi-beam or Girder	35 ft	100	Good
Randall Road over Two Leggins Canal No. 000000202402260	3M SW Hardin	2024	Stringer/Multi-beam or Girder	85 ft	100	Good
IRR BIA RTE 209 over Rosebud Creek No. 00O00000000C714	0.4 Miles West of HWY 212	2019	Culvert	25 ft	100	Good
Pine Ridge RD over Two Leggin`s Canal 014 No. L02004001+02001	4M NW Hardin	1993	Culvert	20 ft	100	Fair
W Boehs RD over Two Leggin`s Canal 049 No. L02007001+00001	3M NW Hardin	1996	Tee Beam	28 ft	100	Fair
Upper RD over Two Leggin`s Canal 005 No. L02011003+05001	8M NW Hardin	1950	Stringer/Multi-beam or Girder	32 ft	100	Fair
Fly Creek RD over Int Ballantine-I 90 003 No. L02012003+08001	16M W Hardin	1972	Stringer/Multi-beam or Girder	272 ft	100	Fair
Sarpy Basin RD over Sarpy Creek 033 No. L02037000+02001	24M E Hardin	1981	Tee Beam	26 ft	100	Fair
Sarpy Basin RD over E Fork Sarpy Creek 028 No. L02037007+08001	30M E Hardin	1971	Tee Beam	42 ft	100	Fair
Bala ST over Little Bighorn River 069 No. L02046011+03001	Crow Agency	1958	Stringer/Multi-beam or Girder	155 ft	100	Fair
Forty Mile RD over Owl Creek 085 No. L02080000+08001	2M SE Lodge Grass	2015	Tee Beam	57 ft	100	Fair
County Road 143 over Unnamed Creek 059 No. L02143010+09001	34M E Decker	1950	Stringer/Multi-beam or Girder	24 ft	100	Fair
IRRC0UNTY Road 223 over Soap Creek 020 No. L02223000+02001	9M SW ST Xavier	1980	Tee Beam	72 ft	100	Fair
Warman Loop over Bighorn Canal 018 No. L02224003+09001	3M NE Fort Smith	1930	Stringer/Multi-beam or Girder	45 ft	100	Fair
N Torske Overpass over Sep I 90 00 No. L02245002+00001	3M NW Hardin	1971	Stringer/Multi-beam or Girder	304 ft	100	Good
Back Loop RD over Little Bighorn River 023 No. L02266000+04001	1M N Wyola	1986	Tee Beam	87 ft	100	Good
Black Bridge RD over Little Bighorn River 024 No. L02269000+01001	3M SW Wyola	1998	Stringer/Multi-beam or Girder	105 ft	100	Good
Peritsa Creek RD over Two Leggin`s Canal 048 No. L02306000+06001	1M W Hardin	2014	Culvert	25 ft	100	Good
IRR - Frontage 315 over Little Bighorn River 002 No. L02315003+02001	2M S Crow Agency	1976	Stringer/Multi-beam or Girder	163 ft	100	Fair
Corporation RD over Two Leggin`s Creek 035 No. L02318001+08001	7M SW Hardin	1991	Culvert	26 ft	100	Fair
IRR - Frontage 325 over Little Bighorn River 075 No. L02325000+09001	2M S Crow Agency	1976	Stringer/Multi-beam or Girder	163 ft	100	Fair
Ranch Access Op over Sep I-90 001 No. L02999000+00101	2M S Aberdeen	1985	Tee Beam	255 ft	100	Good
IRR BIA RTE 205 over Little Big Horn River No. 00000000000C222	0.4KM NW of JCT 205 & 418	1993	Tee Beam	61 ft	80	Fair
IRR BIA RTE 210 over West Fork Muddy Creek No. 00000000000C717	17.4 KM SW of Lame Deer	1977	Stringer/Multi-beam or Girder	67 ft	80	Good
Soap Creek RD over Big Horn Canal 009 No. L02090022+07001	11M SW ST Xavier	1946	Stringer/Multi-beam or Girder	58 ft	63	Poor
IRR BIA RTE 24 over Rosebud Creek No. 00O00000000C712	0.3 Miles West of Rosebud	2019	Culvert	25 ft	60	Fair
HWY 463 over Rotten Grass Creek 008 No. L02090002+02001	15M SW Lodge Grass	1966	Stringer/Multi-beam or Girder	103 ft	49	Good
Frontage Road 332 over Lodge Grass Creek 070 No. L02332000+02001	S Lodge Grass	2015	Tee Beam	64 ft	45	Good
Tullock CR RD over Tullock Creek 029 No. L02002006+05001	15M NE Hardin	2006	Tee Beam	66 ft	34	Fair
Tullock CR RD over Tullock Creek 030 No. L02002012+06001	20M NE Hardin	1985	Tee Beam	72 ft	34	Good
Vanzandt RD over Two Leggin`s Canal 047 No. L02305000+07001	1M W Hardin	1994	Culvert	25 ft	29	Good
IRR BIA RTE 205 over Upper Lodge Grass Creek No. 00000000000C223	6.8 KM NW JCT 205 & 418	1994	Culvert	23 ft	12	Poor
IRR BIA RTE 228 over Rosebud Creek No. 00000000000C725	18 KM West of Lame Deer	1983	Stringer/Multi-beam or Girder	51 ft	10	Fair
IRR BIA RTE 226 over Black Canyon Creek No. 00000000000C219	51.5 KM SW of Lodge Grass	1965	Channel Beam	21 ft	5	Poor

Structure types in Big Horn County

Stringer/Multi-beam or Girder	77	57.9%
Tee Beam	20	15.0%
Slab	17	12.8%
Culvert	16	12.0%
Truss - Thru	1	0.8%
Channel Beam	1	0.8%
Girder and Floorbeam System	1	0.8%