Box Beam or Girders - Multiple bridges in Washington
Hollow rectangular concrete beams placed side by side so their top flanges form the deck. Washington has 616 of them, 7.2% of its bridges. Nationally this type accounts for 10.0% of all bridges.Compare states for this type.
- Box Beam or Girders - Multiple bridges
- 616
- Poor condition
- 5%
- 33 bridges
- Average age
- 51.6 yrs
- Combined length
- 53 mi
Busiest box beam or girders - multiple bridges in Washington
Top 200 by daily traffic| Bridge | County | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|---|
| I-205 over SR 14 Bnrr No. 0010833A0000000 | Clark County | 0.2 N Oregon | 1982 | Box Beam or Girders - Multiple | 7,434 ft | 160,000 | Fair |
| SW Spokane ST over Duwamish River W Waterwy No. 085302000000000 | King County | 1200 SW Spokane ST | 1983 | Box Beam or Girders - Multiple | 1,340 ft | 108,179 | Fair |
| I-5 over Military RD No. 0006124A0000000 | King County | 2.6 N JCT SR 18 | 1959 | Box Beam or Girders - Multiple | 199 ft | 98,173 | Fair |
| I-5 over Military RD No. 0006124B0000000 | King County | 2.6 N JCT SR 18 | 1959 | Box Beam or Girders - Multiple | 199 ft | 98,173 | Good |
| I-5 over N-W Ramp No. 0007734A0000000 | King County | 3.9 N JCT SR 900 | 1966 | Box Beam or Girders - Multiple | 469 ft | 96,847 | Fair |
| I-5 over NE 155th ST No. 0007270C0000000 | King County | 0.5 N JCT SR 523 | 1964 | Box Beam or Girders - Multiple | 147 ft | 92,642 | Fair |
| I-5 over NE 155th ST No. 0007270D0000000 | King County | 0.5 N JCT SR 523 | 1964 | Box Beam or Girders - Multiple | 147 ft | 92,642 | Fair |
| I-5 over Denny Way-Lakeview V No. 0006800A0000000 | King County | 2.9 N JCT I-90 | 1962 | Box Beam or Girders - Multiple | 7,077 ft | 92,513 | Fair |
| I-5 over S 336th ST No. 0006094B0000000 | King County | 0.8 N JCT SR 18 | 1959 | Box Beam or Girders - Multiple | 198 ft | 92,438 | Fair |
| I-5 over S96th ST No. 0005667A0000000 | Pierce County | 0.6 N JCT SR 512 | 1958 | Box Beam or Girders - Multiple | 87 ft | 88,784 | Fair |
| I-5 over S 96th ST No. 0005667B0000000 | Pierce County | 0.6 N JCT SR 512 | 1958 | Box Beam or Girders - Multiple | 86 ft | 88,784 | Good |
| I-5 over NE 175th ST No. 0007299A0000000 | King County | 1.6 N JCT SR 523 | 1964 | Box Beam or Girders - Multiple | 163 ft | 82,639 | Good |
| I-5 over NE 175th ST No. 0007299B0000000 | King County | 1.6 N JCT SR 523 | 1964 | Box Beam or Girders - Multiple | 163 ft | 82,639 | Good |
| I-405 over Green River No. 0007249B0000000 | King County | 0.9 N JCT I-5 | 1964 | Box Beam or Girders - Multiple | 245 ft | 77,251 | Fair |
| I-90 over Mercer Sl No. 0008610A0000000 | King County | 6.6 E JCT I-5 | 1970 | Box Beam or Girders - Multiple | 2,669 ft | 74,410 | Poor |
| I-90 over Mercer Slough No. 0008610B0000000 | King County | 6.4 E JCT I-5 | 1940 | Box Beam or Girders - Multiple | 2,812 ft | 74,410 | Poor |
| I-5 Hov over I-705 SR 7 Ramps RR No. 0007326A0000000 | Pierce County | 1.3 N JCT SR 16 | 1964 | Box Beam or Girders - Multiple | 817 ft | 74,394 | Fair |
| I-5 over I-705 SR 7 Ramps RR No. 0007326B0000000 | Pierce County | 1.3 N JCT SR 16 | 1964 | Box Beam or Girders - Multiple | 817 ft | 74,394 | Fair |
| I-5 over SB Viaduct Sta 2195 No. 0007110B0000000 | King County | 1.2 N JCT I-90 | 1964 | Box Beam or Girders - Multiple | 807 ft | 71,171 | Fair |
| I-5 over King-Jackson ST No. 0007504A0000000 | King County | 0.3 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 706 ft | 71,171 | Fair |
| I-5 over King-Jackson ST No. 0007504B0000000 | King County | 0.3 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 712 ft | 71,171 | Fair |
| I-5 over Dearborn ST No. 0007565F0000000 | King County | 0.1 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 219 ft | 71,171 | Fair |
| I-5 over Dearborn ST No. 0007565G0000000 | King County | 0.1 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 219 ft | 71,171 | Good |
| I-5 over Henderson Blvd No. 0005366A0000000 | Thurston County | 1.2 N JCT US 101 | 1957 | Box Beam or Girders - Multiple | 87 ft | 69,477 | Good |
| W.B. & Rev I-90 over Lake Washington No. 0012271A0000000 | King County | 2.6 E JCT I-5 | 1989 | Box Beam or Girders - Multiple | 5,737 ft | 68,544 | Poor |
| W.B. I-90 over Lake Washington No. 0012833C0000000 | King County | 3.0 E JCT I-5 | 1989 | Box Beam or Girders - Multiple | 1,472 ft | 68,544 | Fair |
| I-5 over S M ST No. 0006088B0000000 | Pierce County | 0.5 N JCT SR 16 | 1959 | Box Beam or Girders - Multiple | 232 ft | 67,156 | Good |
| I-90 over East Channel-Lk Wash No. 0012912A0000000 | King County | 5.9 E JCT I-5 | 1988 | Box Beam or Girders - Multiple | 2,224 ft | 66,975 | Fair |
| I-5 Sbcd over King Jackson ST No. 0007504D0000000 | King County | 0.3 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 709 ft | 66,222 | Fair |
| I-5 over Railroad - Laundry Spur No. 0005284A0000000 | Pierce County | 3.7 N Thurston CO | 1957 | Box Beam or Girders - Multiple | 195 ft | 63,535 | Fair |
| I-5 over W-S W-W S-E Ramps No. 0008085C0000000 | Snohomish County | 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 | Snohomish County | 1.3 N JCT SR 529 | 1967 | Box Beam or Girders - Multiple | 361 ft | 62,161 | Good |
| I-405 over SR 524 (filbert Rd) No. 0011598A0000000 | Snohomish County | 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 | Snohomish County | 2.9 N JCT SR 527 | 1968 | Box Beam or Girders - Multiple | 338 ft | 61,143 | Good |
| I-5 over Pacific Ave No. 0005455A0000000 | Thurston County | 3.4 N JCT US 101 | 1957 | Box Beam or Girders - Multiple | 351 ft | 59,814 | Fair |
| I-5 NB over James Cherry Revers No. 0007110A0000000 | King County | 1.2 N JCT I-90 | 1964 | Box Beam or Girders - Multiple | 4,724 ft | 59,630 | Fair |
| I-90 Westbound over Sound Transit Railroad No. 0013024A0000000 | King County | 0.3 E JCT I-5 | 1988 | Box Beam or Girders - Multiple | 345 ft | 56,847 | Good |
| I-90 over Rainier Ave No. 0013190A0000000 | King County | 0.6 E JCT I-5 | 1988 | Box Beam or Girders - Multiple | 307 ft | 56,847 | Fair |
| I-90 over Rainier Ave S No. 0013725F0000000 | King County | 0.6 E JCT I-5 | 1992 | Box Beam or Girders - Multiple | 296 ft | 56,847 | Good |
| I-405 over SR 522 Sammamish R No. 0008382A0000000 | King County | 8.7 N JCT SR 520 | 1968 | Box Beam or Girders - Multiple | 1,352 ft | 56,311 | Fair |
| I-405 over SR 522 Sammamish R No. 0008382B0000000 | King County | 8.7 N JCT SR 520 | 1968 | Box Beam or Girders - Multiple | 1,410 ft | 56,311 | Fair |
| Evergreen Way over SR 526 No. 0008446F0000000 | Snohomish County | 3.5 N JCT SR 525 | 1969 | Box Beam or Girders - Multiple | 109 ft | 56,198 | Good |
| I-5 Nbcd over King Jackson ST No. 0007504C0000000 | King County | 0.3 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 709 ft | 55,400 | Good |
| I-5 over SR 501/MILL Plain Blvd No. 0011193B0000000 | Clark County | 0.7 N JCT SR 14 | 1979 | Box Beam or Girders - Multiple | 210 ft | 52,908 | Good |
| I-5 over Mcloughlin Blvd No. 0011193F0000000 | Clark County | 0.9 N JCT SR 14 | 1980 | Box Beam or Girders - Multiple | 158 ft | 52,908 | Good |
| I-5 over Mcloughlin Blvd No. 0011193G0000000 | Clark County | 0.9 N JCT SR 14 | 1981 | Box Beam or Girders - Multiple | 158 ft | 52,908 | Fair |
| SR 18 over Peasley Canyon RD No. 0005433A0000000 | King County | 1.9 E JCT I-5 | 1958 | Box Beam or Girders - Multiple | 364 ft | 52,049 | Fair |
| I-90 over City Streets No. 0007841A0000000 | Spokane County | 0.8 E JCT US 195 | 1967 | Box Beam or Girders - Multiple | 2,890 ft | 51,197 | Fair |
| I-90 over Viaduct Sta 1396 US 2 No. 0007954A0000000 | Spokane County | 1.3 E JCT US 195 | 1967 | Box Beam or Girders - Multiple | 2,765 ft | 51,197 | Fair |
| I-90 over 3rd Av & W-E Ramp No. 0008774A0000000 | Spokane County | 0.8 E JCT US 2 | 1970 | Box Beam or Girders - Multiple | 671 ft | 51,158 | Fair |
| SR 18 over Cmstpp RR No. 0004896A0000000 | King County | 0.6 E JCT SR 167 | 1955 | Box Beam or Girders - Multiple | 280 ft | 50,541 | Good |
| I-5 over Sbcd Viaduct Sta 2195 No. 0007110G0000000 | King County | 0.8 N JCT I-90 | 1964 | Box Beam or Girders - Multiple | 806 ft | 49,417 | Fair |
| I-5 over Capitol Lake No. 0005090A0000000 | Thurston County | 0.5 N JCT US 101 | 1956 | Box Beam or Girders - Multiple | 392 ft | 49,410 | Good |
| I-5 over Deschutes Parkway No. 0005129A0000000 | Thurston County | 5.0 N JCT SR 121 | 1956 | Box Beam or Girders - Multiple | 118 ft | 49,410 | Fair |
| I-405 over I-90 Factoria No. 0008190F0000000 | King County | 5.7 N JCT SR 900 | 1969 | Box Beam or Girders - Multiple | 602 ft | 48,783 | Fair |
| SR 285 over S Wenatchee Ave No. 085169000000000 | Chelan County | 0.2 N Douglas CO | 1973 | Box Beam or Girders - Multiple | 130 ft | 48,107 | Poor |
| US 2 over Spokane River No. 0013794A0000000 | Spokane County | 0.7 E JCT I-90 | 1992 | Box Beam or Girders - Multiple | 434 ft | 47,781 | Good |
| 148th Ave over SR 520 No. 0011764A0000000 | King County | 2.3 E JCT I-405 | 1981 | Box Beam or Girders - Multiple | 325 ft | 46,948 | Fair |
| I-90 over Hangman Creek No. 0006579A0000000 | Spokane County | 0.4 E JCT US 195 | 1963 | Box Beam or Girders - Multiple | 1,222 ft | 46,335 | Fair |
| I-90 over Hangman Creek No. 0006579B0000000 | Spokane County | 0.4 E JCT US 195 | 1963 | Box Beam or Girders - Multiple | 1,222 ft | 46,335 | Fair |
| Mill Plain Blvd over I-205 No. 0009737B0000000 | Clark County | 1.3 N JCT SR 14 | 1975 | Box Beam or Girders - Multiple | 339 ft | 45,586 | Fair |
| SR 520 over Northup Way No. 0009086A0000000 | King County | 0.3 E JCT I-405 | 1971 | Box Beam or Girders - Multiple | 376 ft | 45,466 | Good |
| SR 520 over 120th Ave NE No. 0009086B0000000 | King County | 0.3 E JCT I-405 | 1971 | Box Beam or Girders - Multiple | 392 ft | 45,466 | Fair |
| SB Airport Expy over S 170th ST No. 085812000000000 | King County | 1 MI S of SR 518 | 1972 | Box Beam or Girders - Multiple | 148 ft | 45,000 | Fair |
| SR 520 over Wls Pkwy & Sammamish R No. 0010201A0000000 | King County | 4.9 E JCT I-405 | 1976 | Box Beam or Girders - Multiple | 387 ft | 42,985 | Fair |
| SR 520 over Pkwy & Sammamish River No. 0014444A0000000 | King County | 4.9 E JCT I-405 | 1995 | Box Beam or Girders - Multiple | 391 ft | 42,985 | Good |
| SR 512 over 15th Ave SW No. 0009010B0000000 | Pierce County | 1.1 E JCT SR 161 | 1973 | Box Beam or Girders - Multiple | 217 ft | 42,930 | Good |
| SR 512 over Meridian ST No. 0009010C0000000 | Pierce County | 1.3 E JCT SR 161 | 1973 | Box Beam or Girders - Multiple | 237 ft | 42,930 | Good |
| SR 512 over 15th Ave SW No. 0009619A0000000 | Pierce County | 1.1 E JCT SR 161 | 1974 | Box Beam or Girders - Multiple | 190 ft | 42,930 | Good |
| SR 512 over Meridian ST No. 0009619B0000000 | Pierce County | 1.3 E JCT SR 161 | 1974 | Box Beam or Girders - Multiple | 214 ft | 42,930 | Good |
| SR 18 over Npry & City Streets No. 0005082A0000000 | King County | 1.0 E JCT SR 167 | 1956 | Box Beam or Girders - Multiple | 1,151 ft | 41,223 | Fair |
| Airport Nb-Sb Loop over Airport Expressway No. 088542000000000 | King County | 0.25 MI S of SR518 | 2010 | Box Beam or Girders - Multiple | 164 ft | 40,000 | Good |
| US 2 over Ebey Slough and SR 204 No. 0007651B0000000 | Snohomish County | 2.1 E JCT I-5 | 1968 | Box Beam or Girders - Multiple | 2,081 ft | 39,593 | Fair |
| NE 124th ST over I-405 No. 0008615D0000000 | King County | 5.5 N JCT SR 520 | 1969 | Box Beam or Girders - Multiple | 442 ft | 39,499 | Fair |
| I-5 over Meador Ave No. 0005463A0000000 | Whatcom County | 2.8 N JCT SR 11 | 1957 | Box Beam or Girders - Multiple | 280 ft | 38,169 | Fair |
| I-5 over Meador Ave No. 0005463B0000000 | Whatcom County | 2.8 N JCT SR 11 | 1957 | Box Beam or Girders - Multiple | 226 ft | 38,169 | Fair |
| SR 16 over SR 163/PEARL ST No. 0012245A0000000 | Pierce County | JCT SR 163 | 1983 | Box Beam or Girders - Multiple | 257 ft | 37,910 | Fair |
| SR 16 over 6th Ave No. 0012245B0000000 | Pierce County | 3.5 N JCT I-5 | 1983 | Box Beam or Girders - Multiple | 211 ft | 37,910 | Good |
| SR 16 over 6th Ave No. 0016767D0000000 | Pierce County | 3.5 N JCT I-5 | 2006 | Box Beam or Girders - Multiple | 211 ft | 37,910 | Good |
| SR 16 over SR 163/PEARL ST No. 0016767E0000000 | Pierce County | JCT SR 163 | 2006 | Box Beam or Girders - Multiple | 265 ft | 37,910 | Good |
| I-5 P1 15559 Ramp over I-5 Hov Lane No. 0007618B0000000 | King County | 1.5 N JCT I-405 | 1966 | Box Beam or Girders - Multiple | 532 ft | 37,896 | Fair |
| I-5 over RR and Cameron Way No. 0004768A0000000 | Skagit County | 0.6 N JCT SR 536 | 1954 | Box Beam or Girders - Multiple | 467 ft | 37,729 | Fair |
| SR 509 over I-705 Bnrr Dock Street No. 0014747A0000000 | Pierce County | JCT I-705 | 1996 | Box Beam or Girders - Multiple | 311 ft | 37,456 | Good |
| I-5 over Kalama River No. 0008759C0000000 | Cowlitz County | 10.8 N JCT SR 503 | 1971 | Box Beam or Girders - Multiple | 480 ft | 37,279 | Good |
| I-5 over Kalama River No. 0008759D0000000 | Cowlitz County | 10.8 N JCT SR 503 | 1970 | Box Beam or Girders - Multiple | 480 ft | 37,279 | Good |
| I-5 over NE 78th ST No. 0015661G0000000 | Clark County | 2.1 N JCT SR 500 | 2001 | Box Beam or Girders - Multiple | 400 ft | 36,997 | Fair |
| I-405 over I-5 No. 0007401J0000000 | King County | JCT I-5 | 1965 | Box Beam or Girders - Multiple | 556 ft | 36,877 | Fair |
| SR 500 over I-205 No. 0009214B0000000 | Clark County | 4.8 E JCT I-5 | 1973 | Box Beam or Girders - Multiple | 408 ft | 36,179 | Fair |
| I-90 Wcd Ramp over Ramps Rail City Street No. 0007565L0000000 | King County | JCT I-5 & I-90 | 1965 | Box Beam or Girders - Multiple | 865 ft | 35,848 | Fair |
| SR 524 over I-5 No. 0007134B0000000 | Snohomish County | 1.6 E JCT SR 99 | 1964 | Box Beam or Girders - Multiple | 491 ft | 35,106 | Fair |
| Terminal Drive NB over S 170th ST No. 088541000000000 | King County | 1 MI S of SR 518 | 2010 | Box Beam or Girders - Multiple | 406 ft | 35,000 | Good |
| SR 164 over R ST No. 000000OT0000000 | King County | 1.2 E JCT SR 18 | 1970 | Box Beam or Girders - Multiple | 161 ft | 34,579 | Good |
| I-5 over NE 99th ST No. 0014329A0000000 | Clark County | 3.2 N JCT SR 500 | 1996 | Box Beam or Girders - Multiple | 330 ft | 33,756 | Fair |
| I-5 over Lakeway Drive No. 0005790A0000000 | Whatcom County | 2.2 N JCT SR 11 | 1958 | Box Beam or Girders - Multiple | 84 ft | 32,863 | Fair |
| I-5 over Lakeway Drive No. 0005790B0000000 | Whatcom County | 2.2 N JCT SR 11 | 1958 | Box Beam or Girders - Multiple | 84 ft | 32,863 | Fair |
| SR 522 over Fales RD No. 0016726A0000000 | Snohomish County | 4.5 E JCT SR 9 | 2006 | Box Beam or Girders - Multiple | 198 ft | 32,507 | Good |
| I-5 Sbcd over Dearborn ST No. 0007565J0000000 | King County | 0.1 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 216 ft | 32,408 | Fair |
| Argonne Road over Spokane River No. 087205000000000 | Spokane County | 0.6 N Trent Road | 2004 | Box Beam or Girders - Multiple | 339 ft | 32,264 | Good |
| SR 18 over BNSF RR Spur No. 0012618A0000000 | King County | 0.8 E JCT SR 164 | 1986 | Box Beam or Girders - Multiple | 212 ft | 31,748 | Fair |
| SR 18 over BNSF RR Spur No. 0012618B0000000 | King County | 0.8 E JCT SR 164 | 1960 | Box Beam or Girders - Multiple | 212 ft | 31,748 | Good |
| S 74th - S 72nd ST over I-5 No. 0005723A0000000 | Pierce County | 2.1 N JCT SR 512 | 1958 | Box Beam or Girders - Multiple | 183 ft | 31,732 | Fair |
| NE 80th ST over I-5 I-5 Exp Lns Ramps No. 0007156B0000000 | King County | 0.4 N JCT SR 522 | 1964 | Box Beam or Girders - Multiple | 302 ft | 31,375 | Fair |
| SR 167 over W-S Ramp No. 0009075C0000000 | Pierce County | 1.8 N JCT SR 161 | 1971 | Box Beam or Girders - Multiple | 234 ft | 31,198 | Fair |
| SR 167 over W-S Ramp No. 0013042B0000000 | Pierce County | 1.8 N JCT SR 161 | 1988 | Box Beam or Girders - Multiple | 270 ft | 31,198 | Fair |
| US 101 SB over Deschutes Parkway No. 0013045A0000000 | Thurston County | 5.8 E JCT SR 8 | 1987 | Box Beam or Girders - Multiple | 272 ft | 31,153 | Good |
| SR 16 Northbound over SR 166 No. 0005237A0000000 | Kitsap County | 9.8 N Pierce CO | 1956 | Box Beam or Girders - Multiple | 234 ft | 30,756 | Fair |
| SR 3 over Chico Creek No. 0019475A0000000 | Kitsap County | 6.1 N JCT SR 304 | 2024 | Box Beam or Girders - Multiple | 221 ft | 30,680 | Good |
| I-5 over Nbcd Viaduct Sta 2195 No. 0007110F0000000 | King County | 0.8 N JCT I-90 | 1964 | Box Beam or Girders - Multiple | 702 ft | 30,675 | Fair |
| I-5 S-E Ramp over I-5 Ramps Railroad No. 0007565E0000000 | King County | 7.1 N JCT SR 900 | 1965 | Box Beam or Girders - Multiple | 947 ft | 30,627 | Fair |
| I-90 over Spokane Bridge RD No. 0009215A0000000 | Spokane County | 9.6 E JCT SR 27 | 1972 | Box Beam or Girders - Multiple | 112 ft | 30,620 | Fair |
| I-90 over Spokane Bridge RD No. 0009215B0000000 | Spokane County | 9.6 E JCT SR 27 | 1972 | Box Beam or Girders - Multiple | 112 ft | 30,620 | Good |
| I-182 over Yakima River No. 0011950A0000000 | Benton County | 3.6 E JCT I-82 | 1983 | Box Beam or Girders - Multiple | 824 ft | 30,551 | Good |
| I-182 over Yakima River No. 0011950B0000000 | Benton County | 3.6 E JCT I-82 | 1983 | Box Beam or Girders - Multiple | 825 ft | 30,551 | Good |
| 160th/BRICKYARD RD over I-405 No. 0008569A0000000 | King County | 7.8 N JCT SR 520 | 1969 | Box Beam or Girders - Multiple | 292 ft | 30,405 | Fair |
| Madison ST over I-5 No. 0007110C0000000 | King County | 1.1 N JCT I-90 | 1964 | Box Beam or Girders - Multiple | 280 ft | 30,000 | Fair |
| NE 45th ST over I-5 No. 0006111A0000000 | King County | 1.3 N JCT SR 520 | 1960 | Box Beam or Girders - Multiple | 241 ft | 28,856 | Fair |
| Spokane ST EB Lane over I-5 No. 0007741T0000000 | King County | 5.5 N JCT SR 900 | 1966 | Box Beam or Girders - Multiple | 1,793 ft | 28,260 | Fair |
| SR 202 over SR 522 No. 0013494A0000000 | King County | JCT SR 522 | 1989 | Box Beam or Girders - Multiple | 265 ft | 28,216 | Good |
| I-5 over I-205 SB No. 0005818A0000000 | Clark County | 5.3 N JCT SR 500 | 1959 | Box Beam or Girders - Multiple | 243 ft | 27,730 | Fair |
| I-5 over I-205 SB No. 0005818B0000000 | Clark County | 5.3 N JCT SR 500 | 1959 | Box Beam or Girders - Multiple | 242 ft | 27,730 | Fair |
| NE 50th ST over I-5 No. 0006111B0000000 | King County | 1.6 N JCT SR 520 | 1962 | Box Beam or Girders - Multiple | 241 ft | 27,000 | Fair |
| US 395 NB over Lewis ST No. 0004556A0000000 | Franklin County | 0.4 N Benton CO | 1953 | Box Beam or Girders - Multiple | 233 ft | 26,803 | Fair |
| SR 520 over 108th Ave NE No. 0007839B0000000 | King County | 5.2 E JCT SR 513 | 1966 | Box Beam or Girders - Multiple | 271 ft | 26,760 | Good |
| SR 523 / NE 145th over I-5 No. 0007270E0000000 | King County | 0.9 E JCT SR 99 | 1964 | Box Beam or Girders - Multiple | 249 ft | 26,758 | Good |
| US 101 over Perry CR No. 0005728A0000000 | Thurston County | 0.6 S JCT SR 8 | 1957 | Box Beam or Girders - Multiple | 102 ft | 26,624 | Fair |
| US 101 over Perry CR No. 0005728B0000000 | Thurston County | 0.6 S JCT SR 8 | 1958 | Box Beam or Girders - Multiple | 102 ft | 26,624 | Good |
| I-90 over W Snoqualmie Ic No. 0009900C0000000 | King County | 1.7 E JCT SR 18 | 1976 | Box Beam or Girders - Multiple | 135 ft | 26,372 | Good |
| I-90 over W Snoqualmie Ic No. 0009900D0000000 | King County | 1.7 E JCT SR 18 | 1976 | Box Beam or Girders - Multiple | 165 ft | 26,372 | Fair |
| Bridgeport Way over I-5 No. 0005582A0000000 | Pierce County | 11.1 N Thurston CO | 1958 | Box Beam or Girders - Multiple | 294 ft | 26,256 | Fair |
| I-705 over 15th ST Vacated RR No. 0012747B0000000 | Pierce County | 1.1 N JCT I-5 | 1987 | Box Beam or Girders - Multiple | 1,245 ft | 26,174 | Good |
| I-5 over SR 539 No. 0005620A0000000 | Whatcom County | 1.4 N JCT SR 542 | 1958 | Box Beam or Girders - Multiple | 171 ft | 26,088 | Fair |
| I-5 over SR 539 Meridian ST No. 0005620B0000000 | Whatcom County | 1.4 N JCT SR 542 | 1958 | Box Beam or Girders - Multiple | 171 ft | 26,088 | Fair |
| NE 45th ST over 25th Ave NE No. 085131000000000 | King County | NE 45th ST & 25th Ave NE | 1976 | Box Beam or Girders - Multiple | 282 ft | 26,000 | Good |
| I-5 over Gn RY No. 0007124A0000000 | Skagit County | 2.1 N JCT SR 11 | 1963 | Box Beam or Girders - Multiple | 270 ft | 25,876 | Fair |
| I-5 over Gn RY No. 0007124B0000000 | Skagit County | 2.1 N JCT SR 11 | 1963 | Box Beam or Girders - Multiple | 270 ft | 25,876 | Fair |
| SR 9 over US 2 No. 0011399A0000000 | Snohomish County | 5.2 N JCT SR 96 | 1979 | Box Beam or Girders - Multiple | 198 ft | 25,874 | Good |
| US 101 over Morse Creek No. 0008312A0000000 | Clallam County | 5.9 E JCT SR 117 | 1968 | Box Beam or Girders - Multiple | 188 ft | 25,787 | Fair |
| US 2 over Ebey Slough Drainage No. 0013995C0000000 | Snohomish County | 2.2 E JCT I-5 | 1993 | Box Beam or Girders - Multiple | 939 ft | 25,648 | Good |
| N-N Ramp over SR 7 SB Ramp No. 0007326C0000000 | Pierce County | 1.4 N JCT SR 16 | 1964 | Box Beam or Girders - Multiple | 271 ft | 25,622 | Good |
| S-E Ramp over SR 14 No. 0009857B0000000 | Clark County | 6.2 E JCT I-5 | 1976 | Box Beam or Girders - Multiple | 268 ft | 25,539 | Fair |
| County Road 68 over I-182 No. 0012236C0000000 | Franklin County | 3.3 E Benton CO | 1983 | Box Beam or Girders - Multiple | 382 ft | 25,433 | Good |
| I-82 over Np RY Moxee No. 0006615A0000000 | Yakima County | 1.1 E JCT US 12 | 1961 | Box Beam or Girders - Multiple | 213 ft | 25,406 | Poor |
| I-82 over Np RY Moxee No. 0006615B0000000 | Yakima County | 1.1 E JCT US 12 | 1961 | Box Beam or Girders - Multiple | 213 ft | 25,406 | Fair |
| SR 18 over Raging River No. 0006676A0000000 | King County | 10.6 E JCT SR 169 | 1962 | Box Beam or Girders - Multiple | 292 ft | 25,373 | Good |
| SR 522 over Sammamish River No. 0008382H0000000 | King County | JCT I-405 | 1968 | Box Beam or Girders - Multiple | 2,335 ft | 25,269 | Fair |
| US 395 over Np UPRR & Columbia Canal No. 0005076A0000000 | Benton County | 4.9 N JCT I-82 | 1956 | Box Beam or Girders - Multiple | 675 ft | 25,140 | Fair |
| 15th ST SW over SR 167 No. 0009236A0000000 | King County | 2.3 N Pierce CO | 1975 | Box Beam or Girders - Multiple | 369 ft | 25,000 | Good |
| I-90 over S Fk Snoqualmie River No. 0009814A0000000 | King County | 1.3 E JCT SR 202 | 1975 | Box Beam or Girders - Multiple | 484 ft | 24,954 | Good |
| I-90 over S Fk Snoqualmie River No. 0009814B0000000 | King County | 1.3 E JCT SR 202 | 1975 | Box Beam or Girders - Multiple | 487 ft | 24,954 | Good |
| South 19th ST over SR 16 No. 0013783A0000000 | Pierce County | 2.6 N JCT I-5 | 1992 | Box Beam or Girders - Multiple | 239 ft | 24,237 | Good |
| I-5 SB Off Ramp over S-E Ramp to Columbia Way No. 0007741P0000000 | King County | 5.6 N JCT SR 900 | 1967 | Box Beam or Girders - Multiple | 1,422 ft | 24,104 | Fair |
| US 101 over Black Lake Blvd No. 0014272C0000000 | Thurston County | 3.9 S JCT SR 8 | 1995 | Box Beam or Girders - Multiple | 191 ft | 24,066 | Fair |
| 2nd ST over 1-5 and SR 536 No. 0016793A0000000 | Skagit County | 0.3 N JCT SR 536 | 2006 | Box Beam or Girders - Multiple | 650 ft | 24,013 | Fair |
| Pine St-Boren Ave over I-5 No. 0007409D0000000 | King County | 1.6 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 825 ft | 24,000 | Good |
| Off Ramp 4th Ave over South Spokane Street No. 088431000000000 | King County | 4th Ave S & Spokane ST Vi | 2010 | Box Beam or Girders - Multiple | 1,041 ft | 24,000 | Good |
| SR 14 over Columbia Way No. 0014662A0000000 | Clark County | 1.0 E JCT I-5 | 1996 | Box Beam or Girders - Multiple | 367 ft | 23,992 | Fair |
| SR 302 over Henderson Bay No. 000000JQ0000000 | Pierce County | 10.7 E Mason CO | 1936 | Box Beam or Girders - Multiple | 550 ft | 23,753 | Poor |
| I-405 N-E Ramp over Sammamish River No. 0008382C0000000 | King County | 8.7 N JCT SR 520 | 1968 | Box Beam or Girders - Multiple | 709 ft | 23,617 | Fair |
| Denny Way over I-5 No. 0006635B0000000 | King County | 1.9 N JCT I-90 | 1962 | Box Beam or Girders - Multiple | 322 ft | 23,500 | Good |
| Terrace Hts/Yakima over I-82 No. 0006744A0000000 | Yakima County | 1.9 E JCT US 12 | 1962 | Box Beam or Girders - Multiple | 257 ft | 23,453 | Fair |
| Ramp to I-5 Nb/Sb over City Sts Ramp & RR No. 0007882A0000000 | King County | 3.8 N JCT SR 900 | 1966 | Box Beam or Girders - Multiple | 938 ft | 23,338 | Fair |
| I-5 over Allen ST / SR 4 No. 0010902D0000000 | Cowlitz County | JCT SR 4 | 1981 | Box Beam or Girders - Multiple | 132 ft | 23,283 | Good |
| I-5 over Allen St/Sr 4 No. 0010902E0000000 | Cowlitz County | JCT SR 4 | 1980 | Box Beam or Girders - Multiple | 132 ft | 23,283 | Good |
| Terrace Hts Drive over Yakima River No. 082730000000000 | Yakima County | 0.18 W Butterfield | 1979 | Box Beam or Girders - Multiple | 620 ft | 22,500 | Fair |
| E-N Ramp over I-5 No. 0007741J0000000 | King County | 5.5 N JCT SR 900 | 1966 | Box Beam or Girders - Multiple | 287 ft | 22,370 | Fair |
| S 277th ST over Green Rv & Green Rv Rd. No. 087150000000000 | King County | Green River at S 277th ST | 2000 | Box Beam or Girders - Multiple | 467 ft | 22,100 | Good |
| I-90 over SR 202 No. 0010124C0000000 | King County | 4.9 E JCT SR 18 | 1976 | Box Beam or Girders - Multiple | 187 ft | 21,667 | Fair |
| I-90 over SR 202 No. 0010124D0000000 | King County | 4.9 E JCT SR 18 | 1975 | Box Beam or Girders - Multiple | 187 ft | 21,667 | Fair |
| I-90 Ramp to I-405 over I-90 Mainline No. 0008190B0000000 | King County | JCT I-405 | 1969 | Box Beam or Girders - Multiple | 454 ft | 21,663 | Fair |
| SR 500 over Andresen RD No. 0014285A0000000 | Clark County | 3.1 E JCT I-5 | 1995 | Box Beam or Girders - Multiple | 187 ft | 21,383 | Good |
| NE 134th ST over I-205 No. 0009106B0000000 | Clark County | 5.8 N JCT SR 500 | 1972 | Box Beam or Girders - Multiple | 398 ft | 21,340 | Good |
| 8th Street NE over Green River No. 080797000000000 | King County | 0.4 MI E of Harvey RD | 1973 | Box Beam or Girders - Multiple | 137 ft | 21,100 | Fair |
| I-5 Nbcd over Dearborn ST No. 0007565I0000000 | King County | 0.1 N JCT I-90 | 1965 | Box Beam or Girders - Multiple | 216 ft | 20,967 | Fair |
| I-90 over I-5 No. 0007565C0000000 | King County | JCT I-5 | 1966 | Box Beam or Girders - Multiple | 1,685 ft | 20,960 | Fair |
| I-90 over I-5 No. 0007565P0000000 | King County | JCT I-5 | 1966 | Box Beam or Girders - Multiple | 1,881 ft | 20,960 | Fair |
| NE 134th ST over I-5 Ramps No. 0014323A0000000 | Clark County | 5.0 N JCT SR 500 | 1994 | Box Beam or Girders - Multiple | 212 ft | 20,950 | Good |
| I-705 SB S-S Ramp over I-705 SB Ramp Streets+ No. 0012992D0000000 | Pierce County | 0.2 N JCT I-5 | 1988 | Box Beam or Girders - Multiple | 3,364 ft | 20,205 | Good |
| I-705 SB over Terrain No. 0012992E0000000 | Pierce County | 0.1 N JCT I-5 | 1988 | Box Beam or Girders - Multiple | 125 ft | 20,205 | Good |
| NE 72nd Place over I-405 No. 0008674A0000000 | King County | 2.6 N JCT SR 520 | 1970 | Box Beam or Girders - Multiple | 424 ft | 20,179 | Good |
| NE 130th ST over I-5 No. 0007270B0000000 | King County | 3.1 N JCT SR 522 | 1964 | Box Beam or Girders - Multiple | 240 ft | 20,062 | Fair |
| NE117th ST over I-5 No. 0007270A0000000 | King County | 2.4 N JCT SR 522 | 1964 | Box Beam or Girders - Multiple | 312 ft | 20,000 | Good |
| Washington Street over N. Channel Spokane River No. 086015000000000 | Spokane County | 0.85 N of I-90 | 1985 | Box Beam or Girders - Multiple | 325 ft | 19,965 | Good |
| SR 99 over I-5 No. 0007116B0000000 | Snohomish County | JCT I-5 | 1963 | Box Beam or Girders - Multiple | 341 ft | 19,534 | Fair |
| R ST SE over Stuck River No. 085494000000000 | King County | 1.4 MI S of SR-18 | 1967 | Box Beam or Girders - Multiple | 250 ft | 19,500 | Fair |
| I-5 Express Lanes over James & Cherry Streets No. 0007110K0000000 | King County | 0.8 N JCT I-90 | 1964 | Box Beam or Girders - Multiple | 672 ft | 19,438 | Fair |
| I-90 W-S Ramp over I-5 No. 0007565B0000000 | King County | JCT I-5 | 1965 | Box Beam or Girders - Multiple | 1,245 ft | 19,205 | Good |
| I-5 S-W Ramp over Terrain No. 0007741Q0000000 | King County | 5.6 N JCT SR 900 | 1967 | Box Beam or Girders - Multiple | 1,029 ft | 19,202 | Fair |
| Alderwood Mall Blv over SR 524/196th ST SW No. 002003680000000 | Snohomish County | 1.6 E JCT SR 99 | 1999 | Box Beam or Girders - Multiple | 356 ft | 19,198 | Poor |
| SR 599 over I-5 (sb Lanes Only) No. 0007618F0000000 | King County | JCT I-5 | 1966 | Box Beam or Girders - Multiple | 301 ft | 18,948 | Good |
| IRR Valley Avenue over Union Pacific Railroad No. 086193000000000 | Pierce County | 2.2 E JCT SR 5 | 1995 | Box Beam or Girders - Multiple | 662 ft | 18,765 | Fair |
| SR 503 over East Fork Lewis River No. 0008094A0000000 | Clark County | 2.0 N JCT SR 502 | 1967 | Box Beam or Girders - Multiple | 260 ft | 18,654 | Fair |
| 4th Plain Blvd over I-5 No. 0011978A0000000 | Clark County | 1.2 N JCT SR 14 | 1982 | Box Beam or Girders - Multiple | 253 ft | 18,579 | Fair |
| Jackson Ave over SR 16 No. 0012449A0000000 | Pierce County | 1.1 N JCT SR 163 | 1984 | Box Beam or Girders - Multiple | 256 ft | 18,546 | Good |
| Fourth Plain Road over SR 500 No. 0009448A0000000 | Clark County | 4.4 E JCT I-5 | 1974 | Box Beam or Girders - Multiple | 318 ft | 18,150 | Good |
| Fourth Plain Blvd over I-205 No. 0009448B0000000 | Clark County | 0.3 N JCT SR 500 | 1973 | Box Beam or Girders - Multiple | 483 ft | 18,150 | Good |
| SR 520 W-S Ramp over I-5 No. 0006470C0000000 | King County | 0.1 E JCT I-5 | 1962 | Box Beam or Girders - Multiple | 351 ft | 18,129 | Fair |
| NE 45th ST over 25th Ave NE No. 085130000000000 | King County | NE 45th ST & 25th Ave NE | 1938 | Box Beam or Girders - Multiple | 730 ft | 18,000 | Fair |
| SE 231st ST over SR 18 No. 0009289A0000000 | King County | 4.3 E JCT SR 516 | 1972 | Box Beam or Girders - Multiple | 274 ft | 17,714 | Fair |
| I-90 over Yakima River No. 0006868A0000000 | Kittitas County | 24.1 E JCT SR 906 | 1962 | Box Beam or Girders - Multiple | 256 ft | 17,681 | Fair |
| I-90 WB over So Fk Snoqulmie R No. 0008916A0000000 | King County | 21.2 E JCT SR 202 | 1971 | Box Beam or Girders - Multiple | 394 ft | 17,601 | Poor |
Counties with the most
| King County | 212 |
| Clark County | 54 |
| Pierce County | 54 |
| Spokane County | 43 |
| Yakima County | 35 |
| Snohomish County | 27 |
| Kittitas County | 25 |
| Thurston County | 23 |
| Benton County | 22 |
| Chelan County | 15 |
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