Modoc County, CA

87 public highway bridges

Modoc County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Modoc County, California contains 87 public highway bridges. Roughly 49.4% are rated “Good,” 49.4% “Fair,” and 1.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

87
Total Bridges
49.4%
Good
49.4%
Fair
1.1%
Poor Condition

Condition Distribution

Good
49.4% (43)
Fair
49.4% (43)
Poor
1.1% (1)

All Bridges (87)

42N31

Fair

Over: SOUTH FORK PARKER CREEK

3 MI EAST OF W.WARNER RD, Modoc, CA

Built 1969 ADT: 50

42N35

Fair

Over: TURNER CREEK

2 MI S OF LOVENESS RD, Modoc, CA

Built 1969 ADT: 50

CR 87A

Fair

Over: ASH CREEK

1.3 MI NORTH OF SR 299, Modoc, CA

Built 1950 Load: 4.5 t ADT: 23

41N11

Fair

Over: JOHNSON CREEK

NO DATA ENTERED, Modoc, CA

Built 1972 Load: 15.2 t

STATE ROUTE 299

Fair

Over: W BR CLOVERSWALE CREEK

02-MOD-299-27.35, Modoc, CA

Built 1920 Load: 16.2 t ADT: 2,200

COUNTY ROAD 215

Fair

Over: HOWARDS GULCH

2.15 MI N/O RTE 299, Modoc, CA

Built 1931 Load: 16.2 t ADT: 32

SURPRISE VALLEY RD

Fair

Over: OWL CREEK

11.0 MI S OF SH 299, Modoc, CA

Built 1943 Load: 16.2 t ADT: 450

MAINE ST

Fair

Over: BIDWELL CREEK

FORT BIDWELL, Modoc, CA

Built 1934 Load: 16.8 t ADT: 400

CO RD 198

Fair

Over: RUSH CREEK

0.25 MI S/O SR 299, Modoc, CA

Built 1923 Load: 17.2 t ADT: 75

COUNTY ROAD 75

Fair

Over: PIT RIVER

0.3 MI SOUTH OF SR 299, Modoc, CA

Built 1919 Load: 17.8 t ADT: 202

U.S. HIGHWAY 395

Fair

Over: SOUTH FORK PIT RIVER

02-MOD-395-3.73, Modoc, CA

Built 1947 Load: 22.0 t ADT: 2,000

STATE ROUTE 299

Fair

Over: DRY CREEK

02-MOD-299-0.93-ADIN, Modoc, CA

Built 1929 Load: 24.3 t ADT: 1,400

STATE ROUTE 299

Fair

Over: DUTCH FLAT CREEK

02-MOD-299-2.45, Modoc, CA

Built 1936 Load: 24.3 t ADT: 1,110

ESTES STREET

Fair

Over: NORTH FORK PIT RIVER

0.1 MI N PARKER CREEK RD, Modoc, CA

Built 1971 Load: 24.3 t ADT: 620

CO RD 56

Fair

Over: ALTURAS CREEK

0.50 MI E/O US 395, Modoc, CA

Built 1938 Load: 24.3 t ADT: 800

NO DATA ENTERED

Fair

Over: LASSEN CREEK

NO DATA ENTERED, Modoc, CA

Built 1962 Load: 24.6 t ADT: 50

BLUE LAKE ROAD

Fair

Over: SOUTH FORK PIT RIVER

0.06 MI S JESS VALLEY RD, Modoc, CA

Built 1957 Load: 24.9 t ADT: 60

CENTERVILLE RD

Fair

Over: CANYON CREEK OVERFLOW

10.8 SW OF CARLOS ST, Modoc, CA

Built 1958 Load: 25.9 t ADT: 200

ROAD 63

Fair

Over: STONES CANYON

1.7 MI W OF SH 395, Modoc, CA

Built 1976 Load: 25.9 t ADT: 50

OLD BLUE LAKE ROAD

Fair

Over: SOUTH FORK PIT RIVER

6 MI E OF LIKELY, Modoc, CA

Built 1952 Load: 25.9 t ADT: 50

CR 64/JESS VALLEY

Fair

Over: SOUTH FORK PIT RIVER

3.5 MI E S.R. 395, Modoc, CA

Built 1972 Load: 26.6 t ADT: 315

LOOKOUT-HACKMORE R

Fair

Over: PIT RIVER

0.3 MI NW OF C.R. 87, Modoc, CA

Built 1975 Load: 27.2 t ADT: 2,068

U.S. HIGHWAY 395

Fair

Over: PARKER CREEK

02-MOD-395-26.71, Modoc, CA

Built 1954 Load: 27.5 t ADT: 4,000

CR 54/CENTERVILLE

Fair

Over: NORTH BRANCH PIT RIVER

0.3 MI SOUTH OF SH 299, Modoc, CA

Built 1958 Load: 28.2 t ADT: 245

IRR ALPINE RD. 58

Fair

Over: PARKER CREEK

0.3 MI N OF PARKER CR.RD., Modoc, CA

Built 1968 Load: 29.2 t ADT: 200

CENTERVILLE RD

Fair

Over: NORTH FORK PIT RIVER

0.4 MI S OF CARLOS ST., Modoc, CA

Built 1958 Load: 30.1 t ADT: 1,300

IRR CO RD 87

Fair

Over: PIT RIVER SLOUGH

0.2 MI NE LKOUT HKMORE RD, Modoc, CA

Built 1955 Load: 31.1 t ADT: 350

CR 71

Fair

Over: CANYON CREEK

5 MI S/W CENTERVILLE RD, Modoc, CA

Built 1986 Load: 32.1 t ADT: 150

CO RD 133C

Fair

Over: WILLOW CREEK

0.1 MI S OF CR 9, Modoc, CA

Built 1987 Load: 32.4 t ADT: 20

CO RD 60

Fair

Over: EASTSIDE CANAL

2.1 MI W OF CR 189, Modoc, CA

Built 2004 Load: 32.4 t ADT: 200

CR 85

Fair

Over: PIT RIVER

APPROX 8 MI E OF LKT RD, Modoc, CA

Built 2006 Load: 32.4 t ADT: 100

JONES LN -CO RD 61

Fair

Over: MIDDLE CANAL

0.6 MI W SH 395, Modoc, CA

Built 2013 Load: 32.4 t ADT: 50

STATE ROUTE 139

Fair

Over: HOWARDS GULCH

02-MOD-139-R2.23, Modoc, CA

Built 1966 Load: 34.7 t ADT: 1,600

IRR BIA RTE 76

Fair

Over: NORTH FORK OF PIT RIVER

90M W OF RTE 76 & HWY 395, Modoc, CA

Built 2003 Load: 37.5 t ADT: 100

COUNTY ROAD 60

Fair

Over: WESTSIDE CANAL

3.6 MI W OF CR 189, Modoc, CA

Built 1985 Load: 38.6 t ADT: 150

STATE ROUTE 139

Fair

Over: UP RR

02-MOD-139-30.63, Modoc, CA

Built 1954 Load: 40.2 t ADT: 2,000

U.S. HIGHWAY 395

Fair

Over: UP RR

02-MOD-395-R20.77, Modoc, CA

Built 1971 Load: 41.1 t ADT: 2,400

U.S. HIGHWAY 395

Fair

Over: UP RR

02-MOD-395-R15.06, Modoc, CA

Built 1971 Load: 42.4 t ADT: 2,400

IRR CO RD 87

Fair

Over: PIT RIVER SLOUGH

0.8 MI NE LKOUT HKMORE RD, Modoc, CA

Built 1955 Load: 42.8 t ADT: 255

U.S. HIGHWAY 395

Fair

Over: NORTH FORK PIT RIVER

02-MOD-395-21.88-ALT, Modoc, CA

Built 1971 Load: 44.1 t ADT: 2,000

U.S. HIGHWAY 395

Fair

Over: SOUTH FORK PIT RIVER

02-MOD-395-R16.52, Modoc, CA

Built 1971 Load: 44.7 t ADT: 2,400

U.S. HIGHWAY 395

Fair

Over: NORTH FORK PIT RIVER

02-MOD-395-26.23, Modoc, CA

Built 1982 Load: 56.4 t ADT: 4,000

COUNTY ROAD 112

Fair

Over: J CANAL

SOUTH OF STATE LINE RD, Modoc, CA

Built 1940 Load: 59.6 t ADT: 380

42N16

Good

Over: PARKER CREEK

WILDLIFE REFUGE BNDRY, Modoc, CA

Built 1969 ADT: 50

FOREST ROAD 22

Good

Over: ASH CREEK

ASH CREEK CAMPGROUND, Modoc, CA

Built 1976 ADT: 50

48N48

Good

Over: LOST RIVER

3 MI E OF HOPELESS PASS, Modoc, CA

Built 1971 ADT: 50

38N54

Good

Over: JUNIPER CREEK

1 MI E OF STONEBREAKER, Modoc, CA

Built 1970 Load: 13.9 t ADT: 50

COUNTY ROAD 215

Good

Over: HOWARDS GULCH

4.2 MI N OF SH 299, Modoc, CA

Built 1931 Load: 16.2 t ADT: 32

SOUTH WARNER ROAD

Good

Over: EAST CREEK

2.5 MI W OF PATTERSON, Modoc, CA

Built 1958 Load: 18.2 t ADT: 50

COUNTY ROAD 70

Good

Over: PIT RIVER

.5 MI N CENTERVILLE RD, Modoc, CA

Built 1996 Load: 21.4 t ADT: 185
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.