Modoc County, CA

87 public highway bridges

Modoc County Bridge Snapshot

Modoc County, California contains 87 public highway bridges in the FHWA National Bridge Inventory. Roughly 49.4% are rated “Good,” 49.4% “Fair,” 1.1% “Poor,” and 1.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

87
Total Bridges
49.4%
Good
1.1%
Poor
1.1%
Structurally Deficient

Condition Distribution

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

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial