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Every bridge in Jefferson County, Idaho

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

125 inventoried bridges, busiest first

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

Jefferson County, Idaho, has 125 bridges in the 2025 National Bridge Inventory: 24 rated good, 97 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
US 20 over Garfield Ucon Canal	1972	34,500	Fair
US 20 Eb-wb over SH 48;RIGBY Gs	1976	28,500	Fair
US 20 over Burgess Canal	1975	28,500	Fair
US 20 Ebl & Wbl over Parks Lewisville Canal	1975	19,500	Fair
US 20 Ebl over Snake River;lorenzo Br.	1980	15,250	Fair
US 20 Wbl over Snake River;lorenzo Br.	1974	15,250	Fair
US 20 Ebl over Menan Canal	1975	9,750	Fair
US 20 Ebl over Menan-lorenzo Rd Ic	2011	9,750	Good
US 20 Ebl over Snake River Dry Bed Cnl	1975	9,750	Fair
US 20 Wbl over Menan Canal	1975	9,750	Fair
US 20 Wbl over Menan-lorenzo Rd Ic	2011	9,750	Good
US 20 Wbl over Snake River Dry Bed Cnl	1975	9,750	Fair
US 20B over US 20;N.RIGBY Ic	1975	9,500	Fair
SH 33 over I 15 Nb-sb;sage Jct Ic	1995	4,200	Good
Old Yellowstone Hw over Burgess Canal	1940	3,800	Fair
N Yellowstone Hwy over Dry Bed Canal	1999	3,500	Fair
N Yellowstone Hwy over Dry Bed Canal	1999	3,500	Fair
N Yellowstone Hwy over Menan Canal	2010	3,500	Good
Old Hwy 20 over Parks Lewisville Canal	1939	3,500	Fair
SH 33 over Owsley Canal	1995	3,300	Fair
N 3900 E; Iona Rd over Burgess Cnl; SW Rigby Br	2013	3,200	Good
I 15 Nbl over Butte Market Lake Canal	1968	3,050	Fair
I 15 Nbl over Market Lake Canal	1968	3,050	Fair
I 15 Sbl over Butte Market Lake Canal	1968	3,050	Fair
I 15 Sbl over Market Lake Canal	1968	3,050	Fair
SH 48 over Market Lake Canal	1968	3,000	Fair
US 20B over Burgess Canal	1972	3,000	Fair
US 20B over US 20 Nb-sb;s.rigby Ic	1976	3,000	Fair
S6746;menan-lorenz over Island Canal	2011	2,800	Fair
STC6715(N 3400 E) over Burgess Canal	1960	2,800	Good
STC6731;W 145 N over Burgess Canal	1961	2,800	Good
STC6731;W 145 N over Great Western Canal	1967	2,800	Fair
STC6731;W 145 N over Idaho Canal	1967	2,800	Fair
Stc 6709; N 4200 E over Island Canal	2011	2,800	Fair
Stc 6768;N 4700 E over Farmers Friend Canal	1950	2,300	Fair
SH 48 over Burgess Canal	1986	2,200	Fair
SH 48 over Harrison Canal	1983	2,200	Good
SH 48 over Rudy Canal	1986	2,200	Fair
SH 48 over Farmers Friend Canal	1983	2,000	Good
SH 48 over Snake River;roberts Br.	1978	2,000	Fair
Stc 6748(N 3950 E) over Lewisville Canal	1950	2,000	Fair
SH 48 over Snake River Dry Bed	1980	1,900	Fair
500 North Rd over Long Island Canal	1966	1,700	Fair
I 15 Nbl over Beaver Creek	1963	1,700	Fair
I 15 Nbl over Camas Creek	1963	1,700	Fair
I 15 Sbl over Beaver Creek	1989	1,700	Fair
I 15 Sbl over Camas Creek	1989	1,700	Good
N 4100 E over Lewisville Canal	1969	1,700	Fair
Stc 6768;4700 East over Dry Bed Canal	1965	1,600	Fair
Stc 6768;N 4700 E over Harrison Canal	1982	1,600	Good
Stc 6768;S 600 E over S. Fork Snake River	1999	1,600	Fair
N 4100 E Rd (milo) over Burgess Cnl;se.rigby Br	1969	1,400	Fair
SH 48 over I 15 Nb-sb;roberts Rd Ic	1994	1,400	Fair
3700 East Rd over Burgess Canal	1960	1,100	Fair
Bird Refuge Road over I 15;BIRD Refuge Road Gs	1963	1,100	Fair
Camas Creek Road over I 15 Nb-sb;hamer Ic	1960	1,100	Fair
Stc 6715(N 3400 E) over Dry Bed Canal	1957	1,100	Fair
E 200 N over I 15 Nb-sb;e 200 N Gs	1968	810	Fair
Stc 6743 (E 200 N) over Market Lake Canal	1959	810	Good
Stc 6748(N 3950 E) over Dry Bed	1968	740	Fair
Stc 6748(N 3950 E) over Long Island Canal	1975	740	Fair
N 4950 E over Dry Bed Snake River	1968	560	Fair
N 4950 E over Eagle Rock Canal	1950	560	Fair
N 4950 E over Enterprize Canal	1950	560	Fair
N 4950 E over Farmers Friend Canal	1950	560	Fair
N 5050 E over Snake River;heise Br	1975	560	Fair
4800 East Rd over Burgess Cnl;se.labelle	1969	510	Fair
N 4400 E (shelton) over Burgess Canal	1969	510	Poor
E 200 N over Burgess Canal	1970	480	Fair
N 4500 E over Dry Bed Canal	1970	430	Fair
E 300 N over Drybed Canal;e.grover Br	1977	400	Fair
E 200 N over Fairview Canal	1974	390	Fair
N 3470 E Rd over Dry Bed Canal;midway Br.	1977	350	Good
E 100 N Rd over Burgess Canal	1970	320	Fair
E 800 N Road over I 15 Nb-sb; E 800 N	1968	310	Fair
E 400 N over Rigby Canal	1969	300	Fair
N 3800 E Rd(olson) over Burgess Cnl;w.rigby Br	1974	300	Fair
STC6732;OLD Hwy 91 over Beaver Creek	1963	300	Good
STC6732;OLD Hwy 91 over Camas Creek	2001	300	Fair
Stibal Road over I 15 Nb-sb;stibal Rd.gs	1968	300	Fair
N 3600 E Rd over Burgess Canal	1967	290	Good
N 1800 E Rd over Camas Creek	1969	210	Fair
N 4000 E over Burgess Canal	1976	210	Fair
Graham Road over Lewisville Canal	1975	200	Fair
2ND East Street over Anderson Canal	1968	180	Fair
2ND East Street over Eagle Rock Canal	1968	180	Good
N 4200 E Rd over Burgess Cnl Br	1969	170	Fair
Stc 6709;N 4200 E over Dry Bed Cr;s.labelle Br	1973	170	Fair
Stc 6709;N 4200 E over Long Island Canal	1969	170	Fair
N 3980 East Road over Dry Bed	1992	100	Good
105TH East Rd over Harrison Canal	1974	90	Fair
E 1900 N over I 15 Nb-sb;e 1900 N Gs	1960	90	Good
North 4825 East over Enterprise Canal	1970	80	Fair
4500 East over Harrison Canal	1971	70	Fair
E 620 N over Long Island Canal	1967	70	Fair
E 700 N Rd over Butte Market Lake Canal	1962	61	Poor
1900 North Rd over Camas Creek	1972	60	Fair
N 4300 E over Harrison Canal	1973	60	Fair
E 421 N over Lewisville Canal	1960	50	Poor
E 600 N Rd over Long Island Canal	1969	50	Fair
N 1400 E Rd (orme) over Owsley Canal;se Terreton	1976	50	Good
550 West Road over Long Island Canal	1973	40	Fair
N 1200 E Rd over Owsley Cnl;sw.terreton	1974	40	Fair
N 1300 E Rd(byrne) over Owsley Canal;s Terreton	1976	40	Fair
N 175 E Rd over Eagle Rock Cnl Headgate	1997	40	Fair
N 2375 E (cal Ida) over Camas Creek;s.camas Br	1972	40	Fair
N 3200 E (hunter) over Dry Bed Cr;w.lewisville	1964	40	Fair
N 5050 E over Great Feeder Canal Head	2016	40	Good
1900 East Rd over Camas Creek	1972	30	Fair
N 2850 E Road over Butte Market Lake Canal	1931	30	Fair
N 2900 E Rd over Butte Market Lake Canal	1974	30	Good
N 2900 E(hackwart) over Butte Market Lake Canal	1975	30	Good
N 3600 E Rd (hitt) over Dry Bed Cr;ne.lewisville	1967	30	Fair
North 4850 East Rd over Eagle Rock Canal	1974	30	Fair
2350 North over Camas Creek	1972	20	Poor
E 1800 N Rd over Camas Creek	1977	20	Fair
Jernberg Road over Jefferson Canal	1978	20	Fair
N 4300 E Rd over Dry Bed Canal	1974	20	Fair
N 4600 E over Rudy Canal	1973	20	Fair
North 4850 East Rd over Anderson Canal	1974	20	Good
3800 East Road over Dry Bed Creek	1973	15	Fair
Brindley Road over Camas Creek	1980	10	Good
Rays Lake Road over Camas Creek	1939	5	Fair
West Camas Road over Camas Creek	1940	5	Fair
Main Diversion Rd over Camas Creek	1975	2	Fair

Source: FHWA National Bridge Inventory, 2025.

Jefferson County bridge conditions · Idaho bridges by county.

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