Home › Oregon › Lake County › All bridges

Every bridge in Lake County, Oregon

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

95 inventoried bridges, busiest first

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

Lake County, Oregon, has 95 bridges in the 2025 National Bridge Inventory: 39 rated good, 49 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
Or 140 (hwy 020) over Goose Lake Swale	2001	2,107	Good
Or 140 (hwy 020) over Thomas Creek	2001	2,107	Good
Or 140 (hwy 020) over Thomas Creek	2001	2,107	Good
Or 140 (hwy 020) over Warner Canyon Creek	2001	2,107	Good
Or 140 (hwy 020)RW over Irrigation Canal	2001	2,107	Good
Or 140 (hwy 020) over Muddy Creek	2004	1,314	Good
Or 140 (hwy 020)SB over Cottonwood Creek	2004	1,314	Good
US 395 (hwy 019)SB over Cogswell Creek	2020	796	Good
Or 31 (hwy 019) over Chewaucan River Gravel	1965	738	Fair
Or 31 (hwy 019) over Crooked Creek	2000	738	Good
US 395 (hwy 019) over Crooked Creek	1966	738	Good
US 395 (hwy 019) over Crooked Creek	1960	738	Fair
US 395 (hwy 019) over Crooked Creek	1960	738	Fair
US 395 (hwy 019) over Crooked Creek	2008	738	Fair
Or 31 (hwy 019) over Chewaucan River Paisley	1966	625	Fair
Or 31 (hwy 019) over Chewaucan River	2001	551	Good
2-8 over Chewaucan River	1972	544	Good
2-19 over New Idaho Loop Irr Ditch	1974	490	Fair
Or 31 (hwy 019) over Buck Creek	1986	486	Good
Or 31 (hwy 019) over Murdock Creek	1986	486	Fair
Or 31 (hwy 019) over Paulina Marsh	1985	486	Fair
Or 31 (hwy 019) over Silver Creek	2006	486	Good
1-10 over East Fork Thomas Creek	1982	396	Good
1-10 over Goose Lake Swale Ditch	1982	396	Good
1-10 over Lower Thomas Creek	1967	396	Fair
1-10 over Overflow Thomas Creek	1982	396	Good
1-11 over Dry Creek	1993	371	Good
Or 140 (hwy 431) over Blue Creek	1967	351	Fair
Or 140 (hwy 431) over Mud Creek	1967	351	Fair
2-16 over Cox Creek	1976	348	Fair
Or 140 (hwy 431) over Canal	1962	308	Fair
Or 140 (hwy 431) over Canal	1962	308	Fair
Or 140 (hwy 431) over Deep Creek	1966	308	Poor
Or 140 (hwy 431) over Twentymile Creek	1966	308	Fair
2-16 over New Idaho Loop Irr Ditch	1974	272	Fair
2-19 over New Idaho Loop Irr Ditch	1974	272	Fair
2-16 over Thomas Creek	1977	247	Fair
West Side Road over Drews Creek	1957	246	Fair
3-12 over Hart Lake Irr Canal No 1	1981	185	Good
3-12 over Hart Lake Irr Canal No 2	1981	185	Good
3-12 over Hart Lake Irr Canal No 3	1981	185	Good
3-12 over Hart Lake Irr Canal No 4	1981	185	Good
3-12 over Hart Lake Irr Canal No 5	1981	185	Good
3-12 over Hart Lake Overflow	1982	185	Good
3-10 over Honey Creek	1965	172	Fair
3-12 over Dry Stream	1981	161	Fair
4-10 over Buck Creek	1965	148	Fair
2-10a over Airport Ditch	1976	147	Fair
6TH St over Deadman Creek	1983	142	Fair
3-14 over Twelve Mile Creek South	1982	123	Fair
3-14 over Twenty Mile Creek	1970	123	Fair
Adel Road over Deep Creek	2005	122	Good
Road over Camas Creek	1959	108	Fair
3-10 over Rabbit Creek	1982	99	Good
No Data Entered over Sycan River	2019	85	Good
Road over Sycan Spring	1961	85	Poor
3-10 over Fish Creek	1982	81	Fair
River Road over Elder Creek	1957	79	Poor
Road over Bear Creek	1968	79	Fair
5-13 over Timber Creek	1982	75	Good
2-10 over Crooked Creek	1982	71	Good
2-10 over Willow Creek EB	1982	59	Good
3-15 over Beatty Slough	1983	50	Good
Campground Road over Drews Creek	1964	50	Fair
No Data Entered over Barnes Valley Creek	2009	50	Good
No Data Entered over Dairy Creek	2004	50	Fair
No Data Entered over Deep Creek	1981	50	Good
No Data Entered over Dismal Creek	1981	50	Fair
No Data Entered over Drews Creek Slough	1981	50	Fair
No Data Entered over Emmigrant Creek	1980	50	Fair
No Data Entered over Lower Cottonwood Creek	1997	50	Good
No Data Entered over Willow Creek	2018	50	Good
Road 28 over Thomas Creek	2014	50	Good
Road over Camas Creek	1959	50	Fair
Road over Dairy Creek	1957	50	Fair
Road over Dairy Creek	1949	50	Poor
Road over Deadhorse Creek	1959	50	Fair
Road over East Fork Silver Creek	1962	50	Fair
Road over Horse Creek	1968	50	Fair
Road over North Fork Sprague River	1957	50	Poor
Road over Sycan River	1960	50	Poor
3-16 over Camas Creek	1989	44	Fair
Road over North Fork Sprague River	1956	40	Fair
2-14 over Bauers Creek	1981	38	Good
1-11f over Drews Creek	1982	37	Good
County Rd 3-11 over Flagstaff Lake Inlet	1986	37	Fair
Road over Chewaucan River	1954	21	Fair
Road over Sycan River	1967	20	Fair
Road over North Fork Sprague River	1956	19	Fair
Road over Long Creek	1966	18	Poor
Crane Creek Rd over Crane Creek	2005	12	Fair
Crane Creek Rd over Crane Creek	2005	12	Fair
Dicks Creek Rd over Crooked Creek	2003	7	Good
No Data Entered over N Fk Sprague Arch	2019	5	Fair
No Data Entered over Paradise (crab)	2007	5	Fair

Source: FHWA National Bridge Inventory, 2025.

Lake County bridge conditions · Oregon bridges by county.

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