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Every bridge in Teton County, Montana

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

82 inventoried bridges, busiest first

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

Teton County, Montana, has 82 bridges in the 2025 National Bridge Inventory: 34 rated good, 45 fair, and 3 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
I 15 over Sep 9TH Rd NE	1972	1,969	Good
I 15 over Sep 9TH Rd NE	1972	1,969	Good
US 89 over Greenfields Main Canal	1983	1,798	Good
US 89 over Greenfields South Canal	1983	1,798	Good
I 15 over Int Main St	1976	1,703	Fair
I 15 over Int Main St	1976	1,703	Fair
I 15 over Teton River	1977	1,703	Fair
I 15 over Teton River	1977	1,703	Good
US 89 over Teton River	1939	1,265	Fair
US 89 over Foster Creek	2018	654	Good
US 89 over Big Muddy Creek	2010	609	Good
US 287 over Usrs Canal	2005	591	Good
US 287 over Deep Creek	1965	532	Fair
US 287 over Teton River	1978	532	Fair
S 431 over Int Power I 15	1972	493	Fair
S 431 over Muddy Creek	1970	493	Good
Airport Rd over Spring Creek 111	1960	468	Fair
S 565 over Greenfield South Canal	1969	452	Fair
US 287 over Dry Wash	1936	449	Fair
S 408 over Usrs Lat Ditch	1953	394	Fair
S 220 over Jones Creek	1981	385	Good
S 220 over Muddy Creek	1981	385	Good
S 408 over Usrs Main Canal	1953	351	Fair
S 431 over Greenfield Main Canal	1959	285	Fair
S 431 over Greenfield Main Canal	1959	285	Fair
S 221 over Teton River	1939	183	Fair
Teton Canyon Rd over Irrigation Canal 131	2012	173	Good
Pendroy Rd over Farmer`s Coulee	1949	169	Fair
Teton Canyon Rd over Bynum Resevoir Canal 002	1982	155	Good
Route 108 over Sun River	1967	113	Fair
10TH Ln NW over Foster Creek 026	1984	100	Good
10TH Ln NW over Muddy Creek 025	2009	100	Good
13TH Ln NE over Muddy Creek 010	2007	100	Good
13TH Ln NE over Teton River 099	1965	100	Fair
15TH Ln NW over Teton Canal 030	1984	100	Fair
1ST Ln SE over Greenfield Canal 055	1994	100	Fair
1ST Rd SW over Spring Valley Canal 046	1986	100	Fair
20TH Ln NE over Teton River 051	1930	100	Fair
20TH Rd NE over Sep I 15 001	1977	100	Good
2ND Road SW over Big Coulee	2019	100	Good
3RD Ln NW over Muddy Creek 018	1938	100	Poor
3RD Rd NE over No Name Ditch 012	1995	100	Good
4TH Ln NE over Greenfield Canal 044	1982	100	Fair
4TH Rd NE over No Name Ditch 011	1938	100	Good
5TH Ln NE over Greenfield Canal 043	1988	100	Fair
5TH Ln NE over Muddy Creek 016	1980	100	Fair
6TH Ln NE over Drainage 129	1974	100	Poor
6TH Ln NE over Greenfield Canal 042	1969	100	Fair
8TH Ln NE over Greenfield So Canal 039	1966	100	Poor
8TH Ln NE over Teton River 049	1998	100	Good
9TH Ln NW over Spring Valley Canal 047	1975	100	Fair
9TH Rd NE over Drainage 057	1988	100	Fair
Bellview Rd over Dog Creek 062	2013	100	Good
Bellview Rd over North Fork Willow CR 066	1986	100	Fair
Bellview Rd over Seven Mile Coulee 130	1962	100	Good
Bellview Rd over Teton River 061	1970	100	Fair
County Line Rd over Irrigation Canal 031	1949	100	Fair
County Road 213 over Sun River Slope CANAL071	2016	100	Good
County Road 215 over Teton River 067	1976	100	Good
Deep Creek Rd over Deep Creek 065	1976	100	Good
Foster Rd over Teton River 068	1976	100	Fair
Peebles Rd over Teton River 064	1973	100	Fair
Pishkun Rd over Deep Creek 076	1986	100	Good
Pishkun Rd over Willow Creek 070	1970	100	Fair
S Bellview Rd over Dog Creek 069	2013	100	Good
S Division Ln over Big Coulee 059	1976	100	Fair
S Division Ln over Greenfield Canal 058	1978	100	Good
Sherman Rd over Teton River 060	1938	100	Fair
Fdr 109 over S Fk Teton River	1965	99	Good
20TH Rd NW over Spring Coulee 017	1975	88	Fair
24TH Rd NE over Int Collins Rd I 15 003	1977	88	Good
8TH Ln NE over Muddy Creek 015	1987	88	Fair
Nfsr #144 over North Fork Teton River	1965	65	Fair
Nfsr #144 over West Fork Teton River	1977	65	Good
Nfsr 144 over North Fork Teton River	1977	65	Fair
Blackleaf Rd over Muddy Creek 032	1982	52	Fair
Nfsr 8982 over N Fk Teton River	1967	50	Fair
7TH Ln NE over Drainage 128	1978	27	Fair
9TH Ln NE over Muddy Creek 115	1982	19	Good
2ND Ln SE over Greenfield Canal 052	1966	18	Fair
2ND Ln SE over Greenfield Canal 053	1938	18	Good
So. Fk. Teton Rd. over Teton River	1944	16	Fair

Source: FHWA National Bridge Inventory, 2025.

Teton County bridge conditions · Montana bridges by county.

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