Glenn County, CA

242 public highway bridges

Glenn County Bridge Snapshot

Glenn County, California contains 242 public highway bridges in the FHWA National Bridge Inventory. Roughly 35.5% are rated “Good,” 47.5% “Fair,” 9.9% “Poor,” and 9.9% 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.

242
Total Bridges
35.5%
Good
9.9%
Poor
9.9%
Structurally Deficient

Condition Distribution

Good
35.5% (86)
Fair
47.5% (115)
Poor
9.9% (24)
SD
9.9% (24)

All Bridges (242)

ROAD #200

Good

Over: HAMBRIGHT CREEK

5.25 MI W OF I-5, Glenn, CA

Built 1967 Load: 36.3 t ADT: 791

INTERSTATE 5 SB

Good

Over: CENTRAL IRRIGATION CANAL

03-GLE-005-R8.82, Glenn, CA

Built 1966 Load: 36.9 t ADT: 13,000

INTERSTATE 5 NB

Good

Over: CENTRAL IRRIGATION CANAL

03-GLE-005-R8.82, Glenn, CA

Built 1966 Load: 36.9 t ADT: 13,000

COUNTY ROAD 'D'

Good

Over: S FK WILLOW CREEK

2.2 MI N S.H. 162, Glenn, CA

Built 1967 Load: 38.2 t ADT: 491

STATE ROUTE 45

Good

Over: STONY CREEK

03-GLE-045-R20.66, Glenn, CA

Built 1974 Load: 39.9 t ADT: 2,300

INTERSTATE 5

Good

Over: BOYD OVERFLOW

03-GLE-005-R11.98, Glenn, CA

Built 1966 Load: 40.5 t ADT: 12,750

INTERSTATE 5

Good

Over: BOYD OVERFLOW

03-GLE-005-R11.98, Glenn, CA

Built 1966 Load: 40.5 t ADT: 12,750

INTERSTATE 5

Good

Over: STONY CREEK

03-GLE-005-R26.88, Glenn, CA

Built 1966 Load: 40.5 t ADT: 12,300

STATE ROUTE 162

Good

Over: SHEPARDS SLOUGH

03-GLE-162-75.64, Glenn, CA

Built 1958 Load: 42.1 t ADT: 2,700

INTERSTATE 5 SB

Good

Over: CFNR SPUR

03-GLE-005-R10.36, Glenn, CA

Built 1966 Load: 42.8 t ADT: 13,000

INTERSTATE 5 NB

Good

Over: CFNR SPUR

03-GLE-005-R10.36, Glenn, CA

Built 1966 Load: 42.8 t ADT: 13,000

ROAD 65

Good

Over: DEAD DOG DRAW

0.8 MI W/O ROAD 'D', Glenn, CA

Built 1940 Load: 42.8 t ADT: 165

COUNTY RD 'D'

Good

Over: WILSON CREEK

0.5 MI SOUTH OF RD #33, Glenn, CA

Built 1982 Load: 44.4 t ADT: 315

ROAD SS

Good

Over: ORTIZ DRAIN

0.8 MI S OF RD #61, Glenn, CA

Built 1950 Load: 45.7 t ADT: 13

STATE ROUTE 162

Good

Over: QUINT CANAL

03-GLE-162-70.59, Glenn, CA

Built 1963 Load: 46.7 t ADT: 2,600

ROAD 48

Good

Over: WALKER CREEK

0.9 MI E HWY 99W, Glenn, CA

Built 1974 Load: 49.6 t ADT: 647

STATE ROUTE 45

Good

Over: PUMPHOUSE INTAKE

03-GLE-045-0.57, Glenn, CA

Built 1980 Load: 52.8 t ADT: 2,300

ROAD #61

Good

Over: COLUSA DRAIN

0.1 MI E OF RD W, Glenn, CA

Built 1977 Load: 55.4 t ADT: 859

ROAD 67

Poor

Over: BRANCH HOWARD SLOUGH

1.9 MI E OF RD Z, Glenn, CA

Built 1920 Load: 6.2 t ADT: 93

STATE ROUTE 162

Poor

Over: SACRAMENTO RIVER

03-GLE-162-76.70, Glenn, CA

Built 1948 Load: 8.1 t ADT: 2,400

COUNTY ROAD 303

Poor

Over: S FK WILLOW CREEK

4.3 MI S OF S.H. 162, Glenn, CA

Built 1920 Load: 8.7 t ADT: 56

COUNTY ROAD 303

Poor

Over: S FK WILLOW CREEK

4.5 MI S OF S.H. 162, Glenn, CA

Built 1929 Load: 12.3 t ADT: 56

IRR COUNTY RD 306

Poor

Over: WATSON CREEK

0.3 MI N OF RD #305, Glenn, CA

Built 1930 Load: 15.6 t ADT: 268

ROAD 48

Poor

Over: WILLOW CREEK

1.0 MI W/O ROAD 'D', Glenn, CA

Built 1935 Load: 15.9 t ADT: 87

COUNTY ROAD 303

Poor

Over: CLARK'S VALLEY CREEK

5.0 MI S RD 302, Glenn, CA

Built 1935 Load: 16.2 t ADT: 27

COUNTY ROAD 306

Poor

Over: BRANCH STONY CREEK

9.98 MI N CO LINE, Glenn, CA

Built 1930 Load: 16.2 t ADT: 235

ROAD 22

Poor

Over: CENTRAL IRRIGATION CANAL

WEST OF S.H. 45, Glenn, CA

Built 1936 Load: 16.5 t ADT: 63

ROAD #48

Poor

Over: BRANCH WALKER CREEK

0.85 MI EAST OF 99W, Glenn, CA

Built 1940 Load: 16.5 t ADT: 647

ROAD #61

Poor

Over: WILLOW CREEK

6 MI E OF 99W, Glenn, CA

Built 1949 Load: 16.8 t ADT: 928

IRR ROAD 305

Poor

Over: WATSON CREEK

JUST EAST OF ROAD 306, Glenn, CA

Built 1920 Load: 16.8 t ADT: 120

COUNTY ROAD 200

Poor

Over: BRANCH SALT CREEK

0.8 MI W OF RD #306, Glenn, CA

Built 1925 Load: 16.8 t ADT: 91

ROAD 'Y'

Poor

Over: MCKEE OVERFLOW

1.1 MI N HWY 162, Glenn, CA

Built 1935 Load: 17.2 t ADT: 157

ROAD 67

Poor

Over: HOWARD SLOUGH

1.8 MI EAST OF CR Z, Glenn, CA

Built 1920 Load: 20.7 t ADT: 93

ROAD 67

Poor

Over: PACKARD DRAW

0.5 MI WEST OF ROAD Z, Glenn, CA

Built 1930 Load: 21.4 t ADT: 91

ROAD 67

Poor

Over: HOWARD SLOUGH

1.7 MI EAST OF CR Z, Glenn, CA

Built 1950 Load: 21.4 t ADT: 93

COUNTY ROAD Z

Poor

Over: ANGEL SLOUGH

0.8 MI N OF CO RD #67, Glenn, CA

Built 1950 Load: 24.3 t ADT: 176

ROAD 99W

Poor

Over: STONY CREEK

1.3 MI N OF S.H. 32, Glenn, CA

Built 1913 Load: 28.8 t ADT: 4,157

STATE ROUTE 162

Poor

Over: SACRAMENTO RIVER OVFL

03-GLE-162-81.63, Glenn, CA

Built 1911 Load: 36.3 t ADT: 1,500

COUNTY RD R

Structurally Deficient

Over: GLENN-COLUSA CANAL

0.3 MI N/O COUNTY RD 39, Glenn, CA

Built 1950 ADT: 85

COUNTY ROAD Z

Structurally Deficient

Over: ANGEL SLOUGH

0.3 MI N OF S.H. 162, Glenn, CA

Built 1925 ADT: 586

ROAD 200A

Structurally Deficient

Over: STONY CREEK

7 MI SW OF ROAD 206, Glenn, CA

Built 1960 Load: 8.1 t ADT: 63

COUNTY RD 306

Structurally Deficient

Over: SALT CREEK

0.3 MI S OF RD #200, Glenn, CA

Built 1948 Load: 20.4 t ADT: 300

Read our methodology — how this data is sourced, computed, and verified.

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