US Bridges

San Juan County, Washington bridges

San Juan County has 13 bridges and culverts in the National Bridge Inventory, the oldest built in 1921. None are rated poor. The most common type is movable - lift (31%).

Bridges
13
Good
31%
Fair
69%
Poor
0%
0 bridges
Average age
45.9 yrs
Posted or closed
2

Map of bridges in San Juan County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in San Juan County

Type at least two characters, or pick a condition or type, to search every bridge in the county.

Condition

0%poor
Good31%(4)
Fair69%(9)
Poor0%(0)

When they were built

<1900: 0 bridges<19001900s: 0 bridges19001910s: 0 bridges19101920s: 2 bridges219201930s: 0 bridges19301940s: 0 bridges19401950s: 1 bridges119501960s: 1 bridges119601970s: 2 bridges219701980s: 2 bridges219801990s: 0 bridges19902000s: 3 bridges320002010s: 2 bridges220102020s: 0 bridges2020
Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

  1. SR 20 Extension over Friday Hbr-San Juan Chan
    2,587 vehicles/day
    Fair
  2. SR 20 Extension over Friday Hbr-San Juan Chan
    2,587 vehicles/day
    Good
  3. SR 20 over Harney Channel
    2,322 vehicles/day
    Good
  4. SR 20 over Harney Channel
    2,150 vehicles/day
    Fair
  5. Deer Harbor Road over Crow Valley Drainage
    1,826 vehicles/day
    Fair

Longest

  1. SR 20 Extension over Friday Hbr-San Juan Chan
    138 ft
    Fair
  2. SR 20 over Harney Channel
    107 ft
    Good
  3. SR 20 Extension over Friday Hbr-San Juan Chan
    105 ft
    Good
  4. SR 20 over Harney Channel
    105 ft
    Fair
  5. Extension of SR 20 over Upright Channel
    105 ft
    Fair

Oldest

  1. Orcas to Olga Road over Cascade Creek
    Built 1921
    Fair
  2. Mt Constitution RD over Paul Creek
    Built 1929
    Fair
  3. SR 20 over Harney Channel
    Built 1959
    Good
  4. SR 20 Extension over Friday Hbr-San Juan Chan
    Built 1968
    Fair
  5. Ferry Traffic over Blind Bay
    Built 1973
    Fair

All bridges in San Juan County

Busiest first · showing 1–13 of 13
Bridges in San Juan County
BridgeLocationBuiltTypeLengthDaily trafficCondition
SR 20 Extension over Friday Hbr-San Juan Chan
No. 0008415A0000000
NE End San Juan Isl1968Girder and Floorbeam System138 ft2,587Fair
SR 20 Extension over Friday Hbr-San Juan Chan
No. 0016737A0000000
NE End San Juan Isl2005Movable - Lift105 ft2,587Good
SR 20 over Harney Channel
No. 0006120A0000000
On Orcas Island1959Stringer/Multi-beam or Girder107 ft2,322Good
SR 20 over Harney Channel
No. 0013202A0000000
On Orcas Island1979Movable - Lift105 ft2,150Fair
Deer Harbor Road over Crow Valley Drainage
No. 086741000000000
Orcas Island2001Slab24 ft1,826Fair
Orcas to Olga Road over Cascade Creek
No. 084419000000000
Orcas Island1921Arch - Deck28 ft1,607Fair
Extension of SR 20 over Upright Channel
No. 0012015A0000000
N End Lopez Island1981Movable - Lift105 ft1,349Fair
Extension of SR 20 over Upright Channel
No. 0012015B0000000
N End Lopez Island1981Stringer/Multi-beam or Girder103 ft1,349Fair
Point Lawrence RD over Buck Bay
No. 088382000000000
Orcas Island2011Channel Beam44 ft939Good
Channel Road over Cayou Valley Lagoon
No. 088924000000000
Orcas Island2016Stringer/Multi-beam or Girder80 ft516Good
Ferry Traffic over Blind Bay
No. 000000QG0000000
Blind Bay-San Juan1973Stringer/Multi-beam or Girder83 ft308Fair
Ferry Traffic over Blind Bay
No. 0016576A0000000
Blind Bay-San Juan2004Movable - Lift96 ft308Fair
Mt Constitution RD over Paul Creek
No. 086473000000000
0.75M East of Olga Road1929Arch - Deck70 ft30Fair

Structure types in San Juan County

Movable - Lift430.8%
Stringer/Multi-beam or Girder430.8%
Arch - Deck215.4%
Channel Beam17.7%
Girder and Floorbeam System17.7%
Slab17.7%

Other counties in Washington