Skamania County, WA

120 public highway bridges

Skamania County Bridge Snapshot

Skamania County, Washington contains 120 public highway bridges in the FHWA National Bridge Inventory. Roughly 45.8% are rated “Good,” 45% “Fair,” 9.2% “Poor,” and 9.2% 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 WA 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.

120
Total Bridges
45.8%
Good
9.2%
Poor
9.2%
Structurally Deficient

Condition Distribution

Good
45.8% (55)
Fair
45% (54)
Poor
9.2% (11)
SD
9.2% (11)

All Bridges (120)

NO DATA ENTERED

Good

Over: MOUSE CREEK

NO DATA ENTERED, Skamania, WA

Built 2006 Load: 56.1 t ADT: 129

NO DATA ENTERED

Good

Over: NINE MILE CREEK

15.3 MILES NORTH OF HWY 1, Skamania, WA

Built 1988 Load: 56.3 t ADT: 10

NO DATA ENTERED

Good

Over: LITTLE WHITE SALMON 1

NO DATA ENTERED, Skamania, WA

Built 1984 Load: 56.7 t ADT: 5

NO DATA ENTERED

Good

Over: TRIBUTARY TO MUDDY RIVER

NO DATA ENTERED, Skamania, WA

Built 2009 Load: 57.2 t ADT: 5

SR 504

Good

Over: EAST CREEK

1.1 E COWLITZ CO, Skamania, WA

Built 1994 Load: 65.3 t ADT: 540

NO DATA ENTERED

Good

Over: POISON CREEK

T8N, R9E, SEC.18, NW 1/4, Skamania, WA

Built 2000 Load: 66.3 t ADT: 20

NO DATA ENTERED

Good

Over: DRY CREEK

NO DATA ENTERED, Skamania, WA

Built 1981 Load: 93.6 t ADT: 131

SR 14 (FIRST ST.)

Good

Over: KANAKA CREEK

0.2 E COLUMBIA ST., Skamania, WA

Built 1998 Load: 96.9 t ADT: 1,026

NO DATA ENTERED

Good

Over: WEST FORK SWIFT

NO DATA ENTERED, Skamania, WA

Built 1984 Load: 99.9 t ADT: 100

CASCADE AVE EXT.

Poor

Over: KANAKA CREEK

0.1 SOUTH FIRST ST. EAST, Skamania, WA

Built 1920 Load: 15.9 t ADT: 152

NO DATA ENTERED

Poor

Over: LOST CREEK DITCH

7 MILES SOUTHWEST OF MT., Skamania, WA

Built 1986 Load: 16.3 t ADT: 50

SR 14

Poor

Over: HAMILTON CREEK

15.7 E CLARK CO, Skamania, WA

Built 1978 Load: 19.8 t ADT: 4,327

NO DATA ENTERED

Poor

Over: TRAPPER CREEK

14.4 MILES N. OF HWY 14 (, Skamania, WA

Built 1954 Load: 21.8 t ADT: 10

NO DATA ENTERED

Poor

Over: DRY CREEK

ABOUT 11 MILES SW OF TROU, Skamania, WA

Built 1962 Load: 22.7 t ADT: 118

NO DATA ENTERED

Poor

Over: LOST CREEK

ABOUT 10 1/2 MILES SOUTHW, Skamania, WA

Built 1962 Load: 22.7 t ADT: 118

NO DATA ENTERED

Poor

Over: LOST CREEK DITCH

7 MILES SW OF MT. ADAMS R, Skamania, WA

Built 1983 Load: 26.3 t ADT: 50

NO DATA ENTERED

Poor

Over: SWIFT CREEK

ABOUT 4 MILES EAST OF COW, Skamania, WA

Built 1957 Load: 28.1 t ADT: 650

NO DATA ENTERED

Poor

Over: TROUT CREEK 2

NO DATA ENTERED, Skamania, WA

Built 1985 Load: 77.4 t ADT: 20

SKAMANIA LANDING R

Structurally Deficient

Over: BUTLER SLOUGH

0.12 S JCT SR 14, Skamania, WA

Built 1948 Load: 4.5 t ADT: 209

SR 14

Structurally Deficient

Over: HALF BRIDGE

3.2 E CLARK CO, Skamania, WA

Built 1930 Load: 32.7 t ADT: 4,835

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