Snohomish County, Washington bridges
Snohomish County has 500 bridges and culverts in the National Bridge Inventory, the oldest built in 1916. 20 (4%) are rated poor. The most common type is stringer/multi-beam or girder (49%).
- Bridges
- 500
- Good
- 50%
- Fair
- 46%
- Poor
- 4%
- 20 bridges
- Average age
- 44.8 yrs
- Posted or closed
- 31
Map of bridges in Snohomish County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Snohomish County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good50%(248)
Fair46%(232)
Poor4%(20)
When they were built
Busiest
- I-5 over 212th ST SWFair98,485 vehicles/day
- I-5 over 212th ST SWFair98,485 vehicles/day
- I-5 over 52nd Ave WGood98,485 vehicles/day
- I-5 over 52nd Ave WFair98,485 vehicles/day
- I-5 over Lowell RoadGood94,939 vehicles/day
Longest
- US 2 over Ebey IslandFair6,923 ft
- US 2 over Ebey SloughFair6,795 ft
- US 2 over Snohomish RiverFair2,980 ft
- SR 529 over Snohomish RiverPoor2,680 ft
- SR 529 over Snohomish RiverPoor2,465 ft
Oldest
- Old SR9 over Pilchuck CRFairBuilt 1916
- Smokey Point Blvd over South SloughFairBuilt 1918
- Pioneer Highway over Thomsen SloughFairBuilt 1919
- Smokey Point Blvd over Portage CreekFairBuilt 1922
- 86th ST SE over Pilchuck RiverFairBuilt 1924
All bridges in Snohomish County
Busiest first · showing 1–200 of 500| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| I-5 over 212th ST SW No. 0007071F0000000 | 2.2 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 278 ft | 98,485 | Fair |
| I-5 over 212th ST SW No. 0007071G0000000 | 2.2 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 278 ft | 98,485 | Fair |
| I-5 over 52nd Ave W No. 0007227B0000000 | 2.3 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 189 ft | 98,485 | Good |
| I-5 over 52nd Ave W No. 0007227C0000000 | 2.3 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 172 ft | 98,485 | Fair |
| I-5 over Lowell Road No. 0003842A0000000 | 2.3 N JCT SR 527 | 1950 | Tee Beam | 142 ft | 94,939 | Good |
| I-5 over Lowell Road No. 0008132A0000000 | 2.3 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 211 ft | 94,939 | Good |
| I-5 SB over NB & SB Hov Ramps No. 0016991C0000000 | 3.8 N JCT SR 527 | 2007 | Stringer/Multi-beam or Girder | 164 ft | 94,939 | Good |
| I-5 NB over Railroad No. 0008090A0000000 | 3.8 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 968 ft | 90,360 | Fair |
| I-5 SB over Railroad No. 0008090B0000000 | 3.8 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 884 ft | 90,360 | Fair |
| I-5 over Smith Ave No. 0008132G0000000 | 3.7 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 110 ft | 90,360 | Fair |
| I-5 over Smith Ave No. 0008132H0000000 | 3.7 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 110 ft | 90,360 | Good |
| I-5 over SR 529 / Pacific Ave No. 0007888C0000000 | 4.3 N JCT SR 527 | 1966 | Stringer/Multi-beam or Girder | 96 ft | 85,636 | Fair |
| I-5 over SR 529 - Pacific Ave No. 0007888D0000000 | 4.3 N JCT SR 527 | 1966 | Stringer/Multi-beam or Girder | 96 ft | 85,636 | Fair |
| I-5 over SR 524 SPUR/44th Ave W No. 0007118A0000000 | 3.0 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 245 ft | 84,075 | Fair |
| I-5 over SR 524 SPUR/44th Ave W No. 0007118B0000000 | 3.0 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 260 ft | 84,075 | Fair |
| I-5 over Abandoned RR No. 0008132E0000000 | 3.5 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 260 ft | 78,048 | Good |
| I-5 over Abandoned RR No. 0008132F0000000 | 3.6 N JCT SR 527 | 1967 | Stringer/Multi-beam or Girder | 271 ft | 78,048 | Fair |
| I-5 over I-405 & Ramps No. 0007134A0000000 | 1.1 N JCT SR 524 | 1964 | Stringer/Multi-beam or Girder | 274 ft | 77,502 | Good |
| I-5 over S 405 & N 525 Ramps No. 0011598C0000000 | 1.1 N JCT SR 524 | 1980 | Stringer/Multi-beam or Girder | 275 ft | 69,203 | Fair |
| I-5 over Quilceda Creek No. 0004352A0000000 | 0.9 N JCT SR 528 | 1953 | Slab | 112 ft | 68,535 | Good |
| I-5 over Quilceda Creek No. 0008753B0000000 | 0.9 N JCT SR 528 | 1971 | Slab | 712 ft | 68,535 | Fair |
| I-5 over Ebey Sl / SR 529 / RR No. 0004196A0000000 | 4.7 N JCT US 2 | 1954 | Stringer/Multi-beam or Girder | 1,920 ft | 64,989 | Fair |
| I-5 over Union Slough No. 0008226B0000000 | 3.3 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 396 ft | 64,989 | Fair |
| I-5 over Union Slough No. 0008226C0000000 | 3.3 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 396 ft | 64,989 | Fair |
| I-5 over Steamboat Slough No. 0008226D0000000 | 4.1 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 1,026 ft | 64,989 | Fair |
| I-5 over Steamboat Slough No. 0008226E0000000 | 4.1 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 1,026 ft | 64,989 | Fair |
| I-5 over Snohomish River RR No. 0008256A0000000 | 1.0 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 1,623 ft | 64,989 | Fair |
| I-5 over Snohomish R Gn RY No. 0008256B0000000 | 1.0 N JCT US 2 | 1968 | Girder and Floorbeam System | 1,623 ft | 64,989 | Fair |
| I-5 over SR 529 NB Ramp No. 0008372A0000000 | 4.4 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 245 ft | 64,989 | Fair |
| I-5 over SR 529 NB Ramp No. 0008372B0000000 | 4.4 N JCT US 2 | 1968 | Stringer/Multi-beam or Girder | 229 ft | 64,989 | Fair |
| I-5 over SR529 RR Ebey Sl 60th Pl No. 0008400A0000000 | 4.6 N JCT US 2 | 1969 | Stringer/Multi-beam or Girder | 2,062 ft | 64,989 | Fair |
| I-5 over SR 528 4th ST No. 0004178A0000000 | 5.3 N JCT US 2 | 1952 | Tee Beam | 124 ft | 62,168 | Fair |
| I-5 over SR 528 4th ST No. 0008753A0000000 | 5.3 N JCT US 2 | 1971 | Tee Beam | 124 ft | 62,168 | Good |
| I-5 over US 2 Eb/Hewitt Ave No. 0007888E0000000 | 1.1 N JCT SR 529 | 1966 | Stringer/Multi-beam or Girder | 115 ft | 62,161 | Good |
| I-5 over US 2 Eb/Hewitt Ave No. 0007888F0000000 | 1.1 N JCT SR 529 | 1966 | Stringer/Multi-beam or Girder | 115 ft | 62,161 | Good |
| I-5 over SR 529 Spur/Everett Ave No. 0007888G0000000 | 0.1 N JCT US 2 | 1966 | Stringer/Multi-beam or Girder | 128 ft | 62,161 | Good |
| I-5 over SR 529 Spur/Everett Ave No. 0007888H0000000 | 0.1 N JCT US 2 | 1966 | Stringer/Multi-beam or Girder | 128 ft | 62,161 | Good |
| I-5 over W-S W-W S-E Ramps No. 0008085C0000000 | 1.3 N JCT SR 529 | 1967 | Box Beam or Girders - Multiple | 252 ft | 62,161 | Fair |
| I-5 over W-S W-W S-E Ramps No. 0008085D0000000 | 1.3 N JCT SR 529 | 1967 | Box Beam or Girders - Multiple | 361 ft | 62,161 | Good |
| I-405 over Damson RD No. 0008417C0000000 | 2.2 N JCT SR 527 | 1968 | Stringer/Multi-beam or Girder | 212 ft | 61,143 | Good |
| I-405 over Damson RD No. 0008417D0000000 | 2.2 N JCT SR 527 | 1968 | Stringer/Multi-beam or Girder | 187 ft | 61,143 | Fair |
| I-405 over SR 524 (filbert Rd) No. 0011598A0000000 | 2.9 N JCT SR 527 | 1968 | Box Beam or Girders - Multiple | 341 ft | 61,143 | Fair |
| I-405 over SR 524 (filbert Rd) No. 0011598B0000000 | 2.9 N JCT SR 527 | 1968 | Box Beam or Girders - Multiple | 338 ft | 61,143 | Good |
| SR 525 over SR 99 No. 0015688A0000000 | 2.7 N JCT I-5 | 2001 | Stringer/Multi-beam or Girder | 218 ft | 58,122 | Good |
| I-5 over BNSF RR No. 0008632B0000000 | 5.0 N JCT SR 528 | 1970 | Stringer/Multi-beam or Girder | 421 ft | 57,277 | Good |
| I-5 over BNSF RR No. 0008632C0000000 | 5.0 N JCT SR 528 | 1970 | Stringer/Multi-beam or Girder | 421 ft | 57,277 | Good |
| Evergreen Way over SR 526 No. 0008446F0000000 | 3.5 N JCT SR 525 | 1969 | Box Beam or Girders - Multiple | 109 ft | 56,198 | Good |
| SR 527 over I-405 No. 0008286B0000000 | JCT I-405 | 1968 | Stringer/Multi-beam or Girder | 341 ft | 53,140 | Fair |
| I-5 over Portage Creek No. 0005440A0000000 | 1.9 N JCT SR 531 | 1957 | Slab | 121 ft | 47,995 | Fair |
| I-5 over Portage Creek No. 0008631B0000000 | 1.9 N JCT SR 531 | 1970 | Slab | 120 ft | 47,995 | Good |
| SR 96 over North Creek No. 0019885A0000000 | 0.5 E JCT I-5 | 2023 | Culvert | 24 ft | 47,281 | Good |
| I-405 over 228th ST No. 0008375C0000000 | 1.3 N King CO | 1968 | Stringer/Multi-beam or Girder | 287 ft | 46,512 | Good |
| I-405 over 228th ST No. 0008375D0000000 | 1.3 N King CO | 1968 | Stringer/Multi-beam or Girder | 273 ft | 46,512 | Fair |
| I-405 over 9th Ave SE No. 0008417A0000000 | 0.4 N JCT SR 527 | 1968 | Stringer/Multi-beam or Girder | 180 ft | 46,512 | Good |
| I-405 over 9th Ave SE No. 0008417B0000000 | 0.4 N JCT SR 527 | 1968 | Stringer/Multi-beam or Girder | 189 ft | 46,512 | Good |
| I-5 over Stillaguamish River No. 0001652A0000000 | 0.7 N JCT SR 530 | 1933 | Truss - Thru | 859 ft | 45,626 | Fair |
| I-5 over Stillaguamish R No. 0008791A0000000 | 0.7 N JCT SR 530 | 1971 | Stringer/Multi-beam or Girder | 661 ft | 45,626 | Fair |
| 164th ST SW over I-5 No. 0011561A0000000 | 1.3 N JCT I-405 | 1963 | Stringer/Multi-beam or Girder | 323 ft | 44,483 | Fair |
| SR 96(128th ST Sw) over I-5 No. 0013058A0000000 | JCT I-5 | 1987 | Stringer/Multi-beam or Girder | 344 ft | 43,898 | Fair |
| SR 527 over North Creek No. 0013342A0000000 | 0.5 N JCT I-405 | 1988 | Stringer/Multi-beam or Girder | 75 ft | 42,001 | Good |
| I-5 over Pilchuck Creek No. 0004736B0000000 | 2.0 N JCT SR 530 | 1954 | Tee Beam | 213 ft | 41,822 | Good |
| I-5 over Pilchuck Creek No. 0009130B0000000 | 2.0 N JCT SR 530 | 1973 | Stringer/Multi-beam or Girder | 306 ft | 41,822 | Good |
| US 2 over Snohomish River No. 0008266B0000000 | 0.2 E JCT I-5 | 1968 | Stringer/Multi-beam or Girder | 2,980 ft | 40,591 | Fair |
| US 2 over Ebey Island No. 0008378E0000000 | 0.8 E JCT I-5 | 1968 | Stringer/Multi-beam or Girder | 6,923 ft | 40,591 | Fair |
| US 2 over Ebey Island No. 0014428A0000000 | 0.8 E JCT I-5 | 1999 | Box Beam or Girders - Single or Spread | 1,012 ft | 40,591 | Good |
| US 2 over Snohomish R Highland Ave No. 0015511A0000000 | 0.2 E JCT I-5 | 2001 | Stringer/Multi-beam or Girder | 2,369 ft | 40,591 | Fair |
| US 2 over Ebey Island No. 0015511B0000000 | 0.7 E JCT I-5 | 2001 | Stringer/Multi-beam or Girder | 590 ft | 40,591 | Good |
| US 2 over Ebey Slough and SR 204 No. 0007651B0000000 | 2.1 E JCT I-5 | 1968 | Box Beam or Girders - Multiple | 2,081 ft | 39,593 | Fair |
| US 2 over Ebey Slough No. 0013995A0000000 | 1.0 E JCT I-5 | 1993 | Stringer/Multi-beam or Girder | 6,795 ft | 39,593 | Fair |
| SR 527 over I-5 No. 0013048A0000000 | JCT I-5 & SR 526 | 1987 | Stringer/Multi-beam or Girder | 415 ft | 39,282 | Fair |
| SR 526 over E Casino RD No. 0008446G0000000 | 3.7 E JCT SR 525 | 1969 | Stringer/Multi-beam or Girder | 234 ft | 37,224 | Fair |
| 164th Street SE over North Creek No. 085785000000000 | 0.2 W JCT SR 527 | 1967 | Tee Beam | 29 ft | 36,800 | Fair |
| SR 524 over I-5 No. 0007134B0000000 | 1.6 E JCT SR 99 | 1964 | Box Beam or Girders - Multiple | 491 ft | 35,106 | Fair |
| SR 526 over Hardeson Road No. 0008446D0000000 | 2.9 E JCT SR 525 | 1969 | Stringer/Multi-beam or Girder | 163 ft | 34,774 | Fair |
| I-5 over 44th Ave NW No. 0005422A0000000 | 4.1 N JCT SR 532 | 1957 | Slab | 119 ft | 33,933 | Fair |
| I-5 over 44th Ave NW No. 0008879C0000000 | 4.1 N JCT SR 532 | 1971 | Slab | 138 ft | 33,933 | Fair |
| 41st ST over Broadway No. 0008132I0000000 | 0.3 N JCT I-5 | 1967 | Stringer/Multi-beam or Girder | 203 ft | 33,594 | Fair |
| 41st ST NE over I-5 No. 0016991L0000000 | 4.1 N JCT SR 527 | 2006 | Stringer/Multi-beam or Girder | 158 ft | 33,594 | Good |
| I-5 over SR 532/268th ST NE No. 0005423A0000000 | 4.0 N JCT SR 530 | 1957 | Slab | 135 ft | 33,442 | Fair |
| I-5 over SR 532 / 268th ST NE No. 0008879A0000000 | 4.0 N JCT SR 530 | 1971 | Slab | 135 ft | 33,442 | Fair |
| SR 525 over Maple RD & Ash Way No. 0011980A0000000 | 0.4 N JCT I-5 | 1983 | Stringer/Multi-beam or Girder | 830 ft | 33,261 | Fair |
| SR 525 over Maple RD & Ash Way No. 0011980B0000000 | 0.4 N JCT I-5 | 1983 | Stringer/Multi-beam or Girder | 757 ft | 33,261 | Fair |
| SR 525 over Alderwood Mall Pkwy No. 0012036A0000000 | 0.6 N JCT I-5 | 1983 | Stringer/Multi-beam or Girder | 212 ft | 33,261 | Good |
| I-5 over 300th ST Nw/Freeborn RD No. 0005423B0000000 | 2.4 N JCT SR 532 | 1957 | Slab | 119 ft | 33,190 | Fair |
| I-5 over 300th ST Nw/Freeborn RD No. 0008879B0000000 | 2.4 N JCT SR 532 | 1971 | Stringer/Multi-beam or Girder | 150 ft | 33,190 | Fair |
| SR 531 over I-5 No. 0016801A0000000 | JCT I-5 | 2005 | Stringer/Multi-beam or Girder | 243 ft | 32,637 | Fair |
| SR 522 over Fales RD No. 0016726A0000000 | 4.5 E JCT SR 9 | 2006 | Box Beam or Girders - Multiple | 198 ft | 32,507 | Good |
| SR 99 over SR 104 No. 0009698A0000000 | JCT SR 104 | 1975 | Stringer/Multi-beam or Girder | 133 ft | 31,082 | Good |
| 164th ST SW over SR 525 No. 0011627A0000000 | 1.4 N JCT I-5 | 1980 | Stringer/Multi-beam or Girder | 211 ft | 30,703 | Fair |
| 164th ST SW over Swamp Creek No. 087029000000000 | 1.0 W JCT I-5 | 1960 | Culvert | 23 ft | 29,286 | Fair |
| SR 9 over Snohomish River No. 0005727A0000000 | 2.2 N JCT SR 96 | 1959 | Truss - Thru | 1,111 ft | 29,011 | Fair |
| SR 9 over Snohomish R Overflow No. 0006347A0000000 | 1.9 N JCT SR 96 | 1960 | Slab | 371 ft | 29,011 | Fair |
| SR 9 over 2nd ST No. 0007157B0000000 | 2.6 N JCT SR 96 | 1963 | Stringer/Multi-beam or Girder | 210 ft | 29,011 | Fair |
| SR 9 over SR 522 No. 0014810A0000000 | JCT SR 522 | 1997 | Stringer/Multi-beam or Girder | 367 ft | 28,001 | Good |
| 88th Street NE over Quilceda CR No. 0014655B0000000 | 1.6 N JCT SR 528 | 1996 | Stringer/Multi-beam or Girder | 400 ft | 27,672 | Good |
| 88th ST NE over I-5 No. 0014655A0000000 | 1.6 N JCT SR 528 | 1996 | Stringer/Multi-beam or Girder | 215 ft | 26,682 | Fair |
| US 2 over 87th Ave SE No. 0011298A0000000 | 1.9 E JCT SR 204 | 1982 | Stringer/Multi-beam or Girder | 136 ft | 26,681 | Good |
| US 2 over French Creek No. 0003386C0000000 | 5.4 E JCT SR 9 | 1948 | Slab | 82 ft | 25,899 | Fair |
| US 2 over Farm RD & Drain Ditch No. 0003386D0000000 | 5.7 E JCT SR 9 | 1948 | Slab | 82 ft | 25,899 | Good |
| SR 9 over US 2 No. 0011399A0000000 | 5.2 N JCT SR 96 | 1979 | Box Beam or Girders - Multiple | 198 ft | 25,874 | Good |
| US 2 over Ebey Slough Drainage No. 0013995C0000000 | 2.2 E JCT I-5 | 1993 | Box Beam or Girders - Multiple | 939 ft | 25,648 | Good |
| I-405 over I-5 No. 0011855C0000000 | 3.3 N JCT SR 527 | 1982 | Stringer/Multi-beam or Girder | 646 ft | 25,479 | Fair |
| 220th ST SW over I-5 No. 0012790A0000000 | 1.5 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 338 ft | 25,227 | Fair |
| US 2 over S-E Ramp No. 0008085A0000000 | JCT I-5 | 1967 | Slab | 39 ft | 25,126 | Good |
| US 2 Ramp over Hewitt Avenue No. 0016991B0000000 | 4.4 N JCT SR 526 | 2006 | Stringer/Multi-beam or Girder | 115 ft | 25,126 | Good |
| Broadway Ave over I-5 to SR 526 Ramp No. 0008707B0000000 | 2.8 N JCT SR 96 | 1970 | Stringer/Multi-beam or Girder | 63 ft | 25,028 | Good |
| US 2 over Pilchuck R Machias RD No. 0011537A0000000 | 1.3 E JCT SR 9 | 1983 | Stringer/Multi-beam or Girder | 862 ft | 23,214 | Good |
| US 2 over Sultan River No. 0002580A0000000 | 7.1 E JCT SR 203 | 1940 | Truss - Thru | 590 ft | 23,022 | Fair |
| SR 9 over 72nd Street SE No. 0007157C0000000 | 3.7 N JCT SR 96 | 1963 | Stringer/Multi-beam or Girder | 246 ft | 22,270 | Good |
| SB I-5 Ramp over Detention Vault No. 0017945B0000000 | 0.4 N JCT SR 524 | 2012 | Culvert | 270 ft | 22,206 | Fair |
| SR 528 over Allen Creek No. 0013188A0000000 | 0.6 E JCT SR 529 | 1988 | Slab | 100 ft | 21,729 | Good |
| US 2 over Woods Creek No. 0003695A0000000 | 0.4 E JCT SR 203 | 1950 | Tee Beam | 141 ft | 21,661 | Fair |
| N-E Ramp over Hewitt Ave No. 0007888I0000000 | 1.1 N JCT SR 526 | 1966 | Stringer/Multi-beam or Girder | 121 ft | 21,432 | Good |
| SR 532 over Stillaguamish R / RR No. 0017627A0000000 | 0.5 E Snohomish CO | 2010 | Stringer/Multi-beam or Girder | 419 ft | 21,240 | Good |
| SR 532 over Davis Slough No. 0018623A0000000 | 2.9 E Route Begin | 2015 | Stringer/Multi-beam or Girder | 138 ft | 21,240 | Good |
| SR 9 over Everett Water Main No. 002004020000000 | 1.8 N JCT US 2 | 2009 | Stringer/Multi-beam or Girder | 87 ft | 21,133 | Good |
| Airport RD over Airforce RD No. 081863000000000 | 0.79 S JCT SR 526 | 1967 | Slab | 31 ft | 21,004 | Fair |
| Broadway over BNSF Railway No. 088835000000000 | 1.4 N JCT I-5 | 2016 | Slab | 115 ft | 20,800 | Good |
| US 2 over Sultan Mill Pond No. 0004116A0000000 | 8.2 E JCT SR 203 | 1952 | Tee Beam | 117 ft | 20,338 | Fair |
| 20th Avenue West over RD to Boeing Parking Lot No. 085160000000000 | Boeing Intrchng | 1969 | Stringer/Multi-beam or Girder | 148 ft | 19,626 | Fair |
| SR 99 over I-5 No. 0007116B0000000 | JCT I-5 | 1963 | Box Beam or Girders - Multiple | 341 ft | 19,534 | Fair |
| SR 532 over Florence RD BNSF RR No. 0006837A0000000 | 2.1 E Snohomish CO | 1960 | Stringer/Multi-beam or Girder | 699 ft | 19,200 | Fair |
| Alderwood Mall Blv over SR 524/196th ST SW No. 002003680000000 | 1.6 E JCT SR 99 | 1999 | Box Beam or Girders - Multiple | 356 ft | 19,198 | Poor |
| Alderwood Mall Blv over City Maint Storage No. 002003690000000 | 1.6 E JCT SR 99 | 2001 | Stringer/Multi-beam or Girder | 92 ft | 19,198 | Good |
| SR 524 over Swamp Creek No. 081732000000000 | 1.5 E JCT I-5 | 1935 | Stringer/Multi-beam or Girder | 31 ft | 18,981 | Fair |
| SR 524 over North Creek Trib No. 002003900000000 | 4.1 E JCT I-5 | 2007 | Channel Beam | 59 ft | 18,409 | Good |
| SR 532 over Church Creek No. 0019002A0000000 | 3.2 E Snohomish CO | 2017 | Culvert | 32 ft | 18,245 | Good |
| I-405 over I-5 No. 0011855A0000000 | 3.3 N JCT SR 527 | 1981 | Stringer/Multi-beam or Girder | 560 ft | 17,871 | Good |
| Broadway over SR 526 E-S Ramp No. 0008707C0000000 | JCT I-5 & SR 527 | 1970 | Stringer/Multi-beam or Girder | 57 ft | 17,375 | Good |
| Mill Creek Road over Penny Creek No. 087573000000000 | 500 E of SR 527 | 2007 | Slab | 28 ft | 17,100 | Good |
| N-W Ramp P1 18853 over I-5 SR 527 Broadway Av No. 0008707A0000000 | 5.4 N JCT SR 525 | 1970 | Stringer/Multi-beam or Girder | 1,765 ft | 16,700 | Fair |
| Marine Drive over Quilceda Creek No. 085652000000000 | 0.5 NW JCT I-5 | 1988 | Stringer/Multi-beam or Girder | 906 ft | 16,620 | Fair |
| US 2 Ramp over US 2 WB SR 204 Ramps No. 0013995D0000000 | 2.4 E JCT I-5 | 1993 | Box Beam or Girders - Multiple | 463 ft | 16,600 | Good |
| SR 529 over Steamboat Slough No. 0000965C0000000 | 6.2 N JCT SR 529 Spur | 1927 | Movable - Swing | 853 ft | 16,592 | Poor |
| SR 529 over Steamboat Slough No. 0004373A0000000 | 6.3 N JCT SR 529 Spur | 1954 | Movable - Swing | 910 ft | 16,592 | Fair |
| SR 529 over Ebey Slough No. 0017948A0000000 | 0.2 N JCT I-5 | 2012 | Stringer/Multi-beam or Girder | 680 ft | 16,475 | Good |
| SR 529 over Union Sl No. 0000965B0000000 | 5.9 N JCT SR 529 Spur | 1927 | Tee Beam | 581 ft | 16,439 | Poor |
| SR 529 over Union Sl No. 0004562A0000000 | 5.9 N JCT SR 529 Spur | 1954 | Tee Beam | 633 ft | 16,439 | Poor |
| Marine Drive over Sturgeon Creek No. 085653000000000 | 0.8 NW JCT I-5 | 1988 | Stringer/Multi-beam or Girder | 432 ft | 16,436 | Fair |
| State Avenue over Quilceda Creek No. 089309000000000 | 1.2 NE JCT I-5 | 2022 | Stringer/Multi-beam or Girder | 101 ft | 16,432 | Good |
| Airport Way over Snohomish R. No. 081565000000000 | 1.1 N JCT SR#9 | 1983 | Truss - Thru | 360 ft | 16,383 | Good |
| Cathcart Way over Thomas Creek No. 086519000000000 | 4.5 E JCT I5 | 2000 | Stringer/Multi-beam or Girder | 127 ft | 16,353 | Fair |
| SR 529 over Snohomish River No. 0000965A0000000 | 4.6 N JCT SR 529 Spur | 1927 | Movable - Lift | 2,680 ft | 16,286 | Poor |
| SR 529 over Snohomish River No. 0004331A0000000 | 4.7 N JCT SR 529 Spur | 1954 | Movable - Lift | 2,465 ft | 16,286 | Poor |
| SR 529 over SR 529/E Marine View DR No. 0004788A0000000 | 4.5 N JCT SR 529 Spur | 1955 | Slab | 64 ft | 16,286 | Good |
| SR 529 over SR 529/E Marine View DR No. 0004788B0000000 | 4.5 N JCT SR 529 Spur | 1955 | Slab | 64 ft | 16,286 | Good |
| SR 9 over Pedestrain Trail No. 0005492A0000000 | 1.8 N JCT SR 528 | 1957 | Box Beam or Girders - Multiple | 243 ft | 16,274 | Fair |
| Alderwood M Blvd over SR 524 E-S I-5 S-E No. 002003670000000 | 1.5 E JCT SR 99 | 1999 | Stringer/Multi-beam or Girder | 244 ft | 15,848 | Good |
| SR 522 over Elliott RD No. 0006980A0000000 | 6.3 E JCT SR 9 | 1963 | Slab | 145 ft | 15,631 | Good |
| SR 522 over Snohomish R & Tester RD No. 0006980B0000000 | 6.4 E JCT SR 9 | 1963 | Stringer/Multi-beam or Girder | 1,680 ft | 15,631 | Fair |
| SR 522 over W Main Street No. 0008761A0000000 | 9.1 E JCT SR 9 | 1970 | Stringer/Multi-beam or Girder | 282 ft | 15,631 | Fair |
| SR 522 over Elliott Road No. 0018128A0000000 | 6.3 E JCT SR 9 | 2013 | Stringer/Multi-beam or Girder | 129 ft | 15,631 | Good |
| SR 522 over Snohomish R & Tester RD No. 0018128B0000000 | 6.4 E JCT SR 9 | 2013 | Stringer/Multi-beam or Girder | 1,780 ft | 15,631 | Good |
| SR 522 over W Main ST (164th ST Se) No. 0018128C0000000 | 9.1 E JCT SR 9 | 2012 | Stringer/Multi-beam or Girder | 280 ft | 15,631 | Good |
| SR 522 over Wildlife Crossing No. 0018128E0000000 | 7.9 E JCT SR 9 | 2012 | Slab | 27 ft | 15,631 | Good |
| US 2 over Ebey Slough Drainage No. 0013995B0000000 | 2.3 E JCT I-5 | 1993 | Box Beam or Girders - Multiple | 1,318 ft | 15,507 | Fair |
| SR 530 over I-5 No. 0007645A0000000 | JCT I-5 | 1965 | Stringer/Multi-beam or Girder | 279 ft | 15,442 | Good |
| SR 203 over Haskell Slough No. 0005294A0000000 | 5.1 N King CO | 1957 | Slab | 254 ft | 15,411 | Fair |
| SR 526 E-N Ramp over I-5 Broadway Ave No. 0014372B0000000 | JCT I-5 & SR 527 | 1995 | Stringer/Multi-beam or Girder | 1,043 ft | 15,235 | Good |
| SR 203 over Skykomish River No. 0005294B0000000 | 5.2 N King CO | 1957 | Truss - Thru | 582 ft | 15,153 | Poor |
| SR 526 over Airport RD No. 0008446A0000000 | 1.4 E JCT SR 525 | 1969 | Stringer/Multi-beam or Girder | 162 ft | 15,077 | Fair |
| S-E Ramp over SR 526 Mainline No. 0008446C0000000 | 2.0 E JCT SR 525 | 1969 | Box Beam or Girders - Multiple | 246 ft | 14,665 | Fair |
| SR 204 over Ebey Slough No. 0008176B0000000 | JCT US 2 | 1967 | Slab | 202 ft | 14,511 | Good |
| 112th ST SE over I-5 NB No. 0017163B0000000 | 1.3 N JCT SR 96 | 2007 | Stringer/Multi-beam or Girder | 155 ft | 14,504 | Good |
| 228th ST SW over North Creek No. 086828000000000 | 0.5 E Int I405 | 1999 | Slab | 42 ft | 14,319 | Good |
| SR 522 over US 2 & Bn RR No. 0008857A0000000 | 10.5 E JCT SR 9 | 1971 | Stringer/Multi-beam or Girder | 351 ft | 14,192 | Good |
| SR 529 over Bnrr No. 085900000000000 | 1.5 N JCT SR 529 Spur | 1991 | Stringer/Multi-beam or Girder | 631 ft | 13,991 | Good |
| I-405 NB to I-5 SB over Ramps and Swamp Creek No. 0011855B0000000 | JCT I-5 | 1981 | Box Beam or Girders - Multiple | 1,270 ft | 13,933 | Fair |
| US 2 over Wallace River No. 0002649A0000000 | 11.6 E JCT SR 203 | 1940 | Truss - Thru | 236 ft | 13,831 | Fair |
| 92 Nd ST SE over Overflow Channel No. 082328000000000 | 0.38W Int SR-2 | 1948 | Slab | 83 ft | 13,497 | Fair |
| 92 Nd ST SE over Pilchuck R. No. 082334000000000 | 0.54 W Int SR2 | 1948 | Stringer/Multi-beam or Girder | 229 ft | 13,468 | Fair |
| 88th ST SE over Pilchuck R. Overflow No. 086357000000000 | 0.1 SW Int SR2 | 1986 | Culvert | 53 ft | 13,397 | Good |
| SR 530 over S Fk Stillaguamish R No. 0014820A0000000 | 0.5 E JCT SR 9 | 1997 | Stringer/Multi-beam or Girder | 596 ft | 13,355 | Good |
| SB I-5 Ramp over Detention Vault No. 0017945C0000000 | 0.5 N JCT SR 524 | 2012 | Culvert | 205 ft | 13,241 | Good |
| SR 525 over Possession Sound No. 0019338A0000000 | 1.9 N JCT SR 526 | 2020 | Movable - Lift | 107 ft | 13,078 | Good |
| SR 92 over Little Pilchuck Creek No. 0019186A0000000 | 2.7 E JCT SR 9 | 2018 | Arch - Deck | 66 ft | 12,768 | Good |
| SR 92 over Centennial Trail No. 086264000000000 | 2.4 E JCT SR 9 | 1996 | Slab | 93 ft | 12,768 | Fair |
| SR 9 over RR & City Streets No. 0006412A0000000 | 2.8 N JCT SR 531 | 1961 | Stringer/Multi-beam or Girder | 344 ft | 12,531 | Good |
| SR 203 over Overflow Sl No. 0004825A0000000 | 2.9 N King CO | 1954 | Slab | 82 ft | 12,132 | Fair |
| SR 203 over Drainage Overflow No. 0004825B0000000 | 4.1 N King CO | 1954 | Slab | 89 ft | 12,132 | Poor |
| 112th ST SE over I-5 SB No. 0017163A0000000 | 1.3 N JCT SR 96 | 2007 | Stringer/Multi-beam or Girder | 182 ft | 12,000 | Good |
| 180th St. SE over Thompson Creek No. 089212000000000 | 0.3 E SR527 | 2021 | Culvert | 23 ft | 11,759 | Good |
| Locust Way over Swamp Creek No. 088914000000000 | 0.9 MI North King CO Line | 2016 | Tee Beam | 70 ft | 11,359 | Good |
| SR 525 over Gn RY No. 0002656A0000000 | 1.9 N JCT SR 526 | 1941 | Stringer/Multi-beam or Girder | 228 ft | 11,076 | Fair |
| Stimson RD over I-5 No. 0008632A0000000 | 4.6 N JCT SR 528 | 1970 | Stringer/Multi-beam or Girder | 214 ft | 11,032 | Good |
| Bickford Ave over SR 9 No. 0007157A0000000 | 3.9 N JCT SR 96 | 1963 | Stringer/Multi-beam or Girder | 192 ft | 10,998 | Fair |
| I-5 SB to SR 99 SB over SR 526 EB to I-5 SB No. 0007116A0000000 | 5.3 N JCT SR 525 | 1963 | Box Beam or Girders - Multiple | 184 ft | 10,974 | Good |
| SR 104 over 3rd Ave No. 0009021A0000000 | 0.8 E JCT SR 524 | 1971 | Stringer/Multi-beam or Girder | 80 ft | 10,973 | Good |
| SR 522 over 179th SE & 154th SE No. 0008761B0000000 | 10.1 E JCT SR 9 | 1970 | Box Beam or Girders - Multiple | 346 ft | 10,785 | Good |
| SR 522 over 179th SE & 154th SE No. 0018128D0000000 | 10.1 E JCT SR 9 | 2013 | Stringer/Multi-beam or Girder | 342 ft | 10,785 | Good |
| 84th ST NE over Little Pilchuck Creek No. 087408000000000 | 1.1 W JCT SR 92 | 2006 | Stringer/Multi-beam or Girder | 34 ft | 10,540 | Good |
| Old Owen RD over Woods Creek No. 087174000000000 | 0.3 NE JCT SR2 | 2004 | Tee Beam | 82 ft | 10,268 | Good |
| Larch Way over Swamp Creek No. 083075000000000 | 1.4 SW Int I-405 | 1963 | Channel Beam | 26 ft | 10,030 | Fair |
| 116th ST NE over I-5 No. 002005070000000 | 3.3 N JCT SR 528 | 2016 | Girder and Floorbeam System | 158 ft | 9,808 | Good |
| N-N Ramp over I-5 No. 0016991A0000000 | 3.1 N JCT SR 527 | 2006 | Stringer/Multi-beam or Girder | 1,323 ft | 9,786 | Good |
| US 2 over Skykomish R No. 0001649A0000000 | 15.4 E JCT SR 203 | 1932 | Truss - Deck | 577 ft | 9,748 | Fair |
| SR 9 over Stillaguamish R Haller No. 0015305A0000000 | 0.2 N JCT SR 530 | 1999 | Stringer/Multi-beam or Girder | 709 ft | 9,490 | Good |
| 236th ST SW over I-5 No. 0007227A0000000 | 0.4 N JCT SR 104 | 1963 | Stringer/Multi-beam or Girder | 319 ft | 9,426 | Good |
| US 2 WB over S-E Ramp No. 0008085B0000000 | JCT I-5 | 1967 | Slab | 38 ft | 9,383 | Fair |
| US 2 over SR 204 No. 0008176A0000000 | 2.4 E JCT I-5 | 1967 | Slab | 583 ft | 9,063 | Good |
Structure types in Snohomish County
| Stringer/Multi-beam or Girder | 245 | 49.0% |
| Tee Beam | 65 | 13.0% |
| Slab | 56 | 11.2% |
| Box Beam or Girders - Multiple | 27 | 5.4% |
| Culvert | 26 | 5.2% |
| Frame | 21 | 4.2% |
| Channel Beam | 19 | 3.8% |
| Truss - Thru | 14 | 2.8% |
| Box Beam or Girders - Single or Spread | 6 | 1.2% |
| Arch - Deck | 5 | 1.0% |
| Movable - Lift | 4 | 0.8% |
| Girder and Floorbeam System | 4 | 0.8% |
| Arch - Thru | 2 | 0.4% |
| Movable - Swing | 2 | 0.4% |
| Truss - Deck | 2 | 0.4% |
| Other | 2 | 0.4% |
Other counties in Washington
- Adams County 187
- Asotin County 28
- Benton County 167
- Chelan County 148
- Clallam County 153
- Clark County 219
- Columbia County 86
- County 000 1
- Cowlitz County 161
- Douglas County 40
- Ferry County 55
- Franklin County 133
- Garfield County 54
- Grant County 304
- Grays Harbor County 371
- Island County 7
- Jefferson County 97
- King County 1,252
- Kitsap County 120
- Kittitas County 313
- Klickitat County 91
- Lewis County 420
- Lincoln County 180
- Mason County 136
- Okanogan County 161
- Pacific County 120
- Pend Oreille County 71
- Pierce County 480
- San Juan County 13
- Skagit County 256
- Skamania County 120
- Spokane County 309
- Stevens County 75
- Thurston County 199
- Wahkiakum County 37
- Walla Walla County 195
- Whatcom County 355
- Whitman County 349
- Yakima County 557