Okanogan County, Washington bridges
Okanogan County has 161 bridges and culverts in the National Bridge Inventory, the oldest built in 1900. 12 (7%) are rated poor. The most common type is stringer/multi-beam or girder (37%).
- Bridges
- 161
- Good
- 47%
- Fair
- 46%
- Poor
- 7%
- 12 bridges
- Average age
- 53.2 yrs
- Posted or closed
- 10
Map of bridges in Okanogan County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Okanogan County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good47%(75)
Fair46%(74)
Poor7%(12)
When they were built
Busiest
- US 97 over Okanogan RiverFair8,828 vehicles/day
- US 97 over SR 155Poor8,828 vehicles/day
- US 97 over Gn Rr-County RoadGood7,453 vehicles/day
- SR 155 Spur over Okanogan RiverFair5,987 vehicles/day
- US 97 over Bonaparte CRGood5,771 vehicles/day
Longest
- Fair
- Fair
- SR 153 over Methow RiverPoor476 ft
- US 97 over Methow RiverFair468 ft
- Fair
Oldest
- US 97 over Dan CreekGoodBuilt 1900
- SR 155 Spur over Okanogan RiverFairBuilt 1923
- SR 20 over Methow RiverPoorBuilt 1929
- SR 153 over Methow RiverFairBuilt 1933
- SR 20 over Bonaparte CreekFairBuilt 1933
All bridges in Okanogan County
Busiest first · showing 1–161 of 161| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| US 97 over Okanogan River No. 0007308A0000000 | 0.7 N JCT SR 155 | 1964 | Box Beam or Girders - Multiple | 418 ft | 8,828 | Fair |
| US 97 over SR 155 No. 0007309B0000000 | 0.2 N JCT SR 155 | 1964 | Slab | 58 ft | 8,828 | Poor |
| US 97 over Gn Rr-County Road No. 0007309A0000000 | 4.1 N JCT SR 20 | 1964 | Box Beam or Girders - Multiple | 276 ft | 7,453 | Good |
| SR 155 Spur over Okanogan River No. 000000HD0000000 | 0.2 W JCT SR 155 | 1923 | Arch - Deck | 410 ft | 5,987 | Fair |
| US 97 over Bonaparte CR No. 0005367A0000000 | 22.4 N JCT SR 215 | 1957 | Slab | 80 ft | 5,771 | Good |
| US 97 over Watson Draw No. 0007683A0000000 | 1.5 N JCT SR 153 | 1965 | Tee Beam | 100 ft | 5,644 | Poor |
| US 97 over Methow River No. 0007881A0000000 | 0.1 N JCT SR 153 | 1966 | Box Beam or Girders - Multiple | 468 ft | 5,564 | Fair |
| SR 215 over Salmon CR No. 0003718A0000000 | 0.6 N JCT SR 20 | 1950 | Slab | 59 ft | 5,294 | Fair |
| SR 20 over H W Channel Methow R No. 0003081B0000000 | 37.7 E Chelan CO | 1945 | Slab | 59 ft | 4,775 | Good |
| SR 20 over H W Channel Methow R No. 0003081C0000000 | 38.4 E Chelan CO | 1946 | Slab | 59 ft | 4,775 | Good |
| US 97 over Okanogan R & RR No. 0005371A0000000 | 18.3 N JCT SR 215 | 1957 | Box Beam or Girders - Multiple | 659 ft | 4,734 | Fair |
| SR 20 over Methow River No. 0003722A0000000 | 30.8 E Chelan CO | 1929 | Truss - Thru | 335 ft | 4,683 | Poor |
| SR 20 over Methow River No. 0016134A0000000 | 39.6 E Chelan CO | 2002 | Stringer/Multi-beam or Girder | 361 ft | 4,549 | Good |
| US 97 over Okanogan River No. 000000LX0000000 | 3.6 N JCT SR 173 | 1950 | Stringer/Multi-beam or Girder | 458 ft | 4,504 | Fair |
| SR 20 over Twisp R No. 0015714A0000000 | 38.8 E Chelan CO | 2000 | Stringer/Multi-beam or Girder | 198 ft | 4,361 | Good |
| US 97 over Siwash Creek No. 0003403A0000000 | 0.6 N JCT SR 20 | 1948 | Tee Beam | 52 ft | 4,282 | Good |
| Oak Street over Okanogan River No. 087084000000000 | 0.09 SW SR 215 | 2003 | Stringer/Multi-beam or Girder | 340 ft | 4,100 | Good |
| SR 20 over Chewuch River No. 0006563A0000000 | 30.2 E Chelan CO | 1961 | Box Beam or Girders - Multiple | 125 ft | 3,696 | Poor |
| US 97 over Dan Creek No. 086142000000000 | 3.9 N JCT SR 17 | 1900 | Culvert | 22 ft | 3,479 | Good |
| US 97 over Okanogan River No. 0003897A0000000 | 15.6 N JCT SR 20 | 1951 | Tee Beam | 382 ft | 3,349 | Fair |
| FAS Route P240 over Okanogan River No. 086499000000000 | 0.25 MI W. US-97 | 1999 | Girder and Floorbeam System | 309 ft | 3,056 | Fair |
| SR 20 over Okanogan River No. 0005956A0000000 | 0.2 E JCT SR 215 | 1959 | Box Beam or Girders - Multiple | 368 ft | 2,479 | Fair |
| SR 20 over Railroad No. 0005956B0000000 | 0.3 E JCT SR 215 | 1959 | Slab | 165 ft | 2,479 | Fair |
| SR 155 over Omak CR No. 0008186A0000000 | 50.5 N Douglas CO | 1967 | Slab | 95 ft | 2,399 | Fair |
| SR 153 over Beaver Creek No. 0015890A0000000 | 29.3 N JCT US 97 | 2001 | Culvert | 36 ft | 2,313 | Good |
| SR 153 over Methow River No. 0001658A0000000 | 3.7 N JCT US 97 | 1933 | Tee Beam | 292 ft | 1,847 | Fair |
| SR 153 over Methow River No. 0002450A0000000 | 11.9 N JCT US 97 | 1939 | Tee Beam | 476 ft | 1,847 | Poor |
| SR 153 over Methow River No. 0002450B0000000 | 13.5 N JCT US 97 | 1939 | Tee Beam | 415 ft | 1,847 | Poor |
| SR 153 over Methow River No. 0002450C0000000 | 14.0 N JCT US 97 | 1939 | Tee Beam | 350 ft | 1,847 | Poor |
| SR 153 over Methow River No. 0002450D0000000 | 15.5 N JCT US 97 | 1939 | Tee Beam | 302 ft | 1,847 | Poor |
| SR 153 over Black Canyon Creek No. 0003583A0000000 | 6.6 N JCT US 97 | 1949 | Tee Beam | 98 ft | 1,847 | Fair |
| SR 153 over Methow River No. 0003704A0000000 | 4.3 N JCT US 97 | 1950 | Truss - Thru | 425 ft | 1,847 | Fair |
| SR 20 over Bonaparte Creek No. 0001738A0000000 | 0.9 E JCT US 97 | 1933 | Arch - Deck | 118 ft | 1,755 | Fair |
| SR 20 over Bonaparte CR No. 0015877A0000000 | 4.6 E JCT US 97 | 2000 | Slab | 67 ft | 1,755 | Good |
| SR 153 over Methow River No. 0001976A0000000 | 22.3 N JCT US 97 | 1935 | Tee Beam | 438 ft | 1,578 | Fair |
| SR 153 over Methow River No. 0002450E0000000 | 18.9 N JCT US 97 | 1939 | Tee Beam | 302 ft | 1,578 | Fair |
| SR 153 over Methow River No. 0003507A0000000 | 16.9 N JCT US 97 | 1939 | Tee Beam | 454 ft | 1,578 | Fair |
| FAS Route Z240 over Okanogan River No. 083609000000000 | .SWNWS27T40NR27E | 1971 | Tee Beam | 180 ft | 1,527 | Fair |
| SR 20 over Methow River No. 0012559A0000000 | 22.1 E Chelan CO | 1984 | Stringer/Multi-beam or Girder | 409 ft | 1,478 | Fair |
| County Road 9155 over Chiliwist Creek No. 079937000000000 | 01.8 Mi.S.Malott | 1944 | Slab | 23 ft | 1,415 | Fair |
| SR 20 over Beaver Creek No. 0017131A0000000 | 1.8 E JCT SR 153 | 2006 | Slab | 29 ft | 1,388 | Good |
| SR 20 over Bonaparte Creek No. 0015877B0000000 | 7.7 E JCT US 97 | 2001 | Slab | 56 ft | 1,358 | Good |
| Ocr 3735 over Omak Creek No. 084842000000000 | 0.29 NE.JCT.SR155 | 1968 | Stringer/Multi-beam or Girder | 50 ft | 1,339 | Good |
| SR 20 over Early Winters Creek No. 0007567A0000000 | 15.2 E Chelan CO | 1964 | Tee Beam | 97 ft | 1,280 | Poor |
| SR 20 over Early Winters Creek No. 0008473B0000000 | 8.0 E Chelan CO | 1968 | Stringer/Multi-beam or Girder | 66 ft | 1,280 | Good |
| SR 20 over Early Winters Creek No. 0008473C0000000 | 13.4 E Chelan CO | 1968 | Box Beam or Girders - Multiple | 220 ft | 1,280 | Good |
| SR 20 over Little Boulder Creek No. 0016979A0000000 | 18.8 E Chelan CO | 2005 | Culvert | 29 ft | 1,280 | Good |
| SR 20 over Cutthroat Creek No. 0008473A0000000 | 4.5 E Chelan CO | 1968 | Stringer/Multi-beam or Girder | 65 ft | 1,081 | Good |
| Lost River RD over Methow River No. 083318000000000 | .Nese S25 T36 R19 | 1972 | Stringer/Multi-beam or Girder | 214 ft | 1,057 | Fair |
| FAS Route U243 over Similkameen River No. 083864000000000 | .NESWS28T40NR27E | 1950 | Tee Beam | 365 ft | 985 | Fair |
| FAS Route T242 over Okanogan River No. 081687000000000 | .SENWS14T38NR27E | 1961 | Box Beam or Girders - Multiple | 339 ft | 894 | Fair |
| FAS Route F241 over Salmon Creek No. 080541000000000 | .SESWS6T35NR25E | 1949 | Slab | 60 ft | 867 | Fair |
| Monse Bridge RD over Okanogan River No. 084670000000000 | 0.25 MI W. HWY97 | 1967 | Girder and Floorbeam System | 560 ft | 781 | Fair |
| SR 213 over Okanogan River No. 0006731A0000000 | 0.2 N JCT US 97 | 1962 | Box Beam or Girders - Multiple | 318 ft | 773 | Fair |
| FAS Route A240 over Twisp River No. 081404000000000 | .SESES12T33NR21E | 1949 | Stringer/Multi-beam or Girder | 108 ft | 770 | Poor |
| Wolf Creek RD over Wolf Creek No. 084368000000000 | 3.2 W.SR20 @ Wnthp | 1963 | Channel Beam | 30 ft | 702 | Fair |
| Tunk Valley RD over Okanogan River No. 085437000000000 | 0.32 M E US 97 | 1969 | Stringer/Multi-beam or Girder | 330 ft | 650 | Fair |
| Columbia River RD over Omak Creek No. 087574000000000 | 0.77 MI S. Jct. SR155 | 2006 | Culvert | 49 ft | 553 | Good |
| Kendell Street over Johnson Creek No. 085439000000000 | 0.3 NE US97 @rivsd | 1976 | Channel Beam | 26 ft | 521 | Good |
| Ocr 3358 over Omak Creek No. 084839000000000 | 0.43 NE.JCT.SR155 | 1973 | Tee Beam | 50 ft | 463 | Good |
| Mill Street over Salmon Creek No. 087575000000000 | .31 MI West of SR215 | 2006 | Stringer/Multi-beam or Girder | 50 ft | 450 | Fair |
| County Road 9221 over Salmon Creek No. 084243000000000 | NWNWS31T34NR26E | 1949 | Stringer/Multi-beam or Girder | 23 ft | 427 | Fair |
| Salmon Creek RD over Salmon Creek No. 089344000000000 | 3 Miles NW of Okanogan | 2022 | Frame | 35 ft | 427 | Good |
| Lost River RD over Gate Creek No. 081150000000000 | 4 Mi. N. of Goat CR RD | 1971 | Stringer/Multi-beam or Girder | 32 ft | 395 | Fair |
| County Road 4719 over Nine Mile Creek No. 081884000000000 | 1.75 NO.JCT.9480 | 1980 | Stringer/Multi-beam or Girder | 28 ft | 352 | Good |
| FAS Route L242 over Goat Creek No. 084393000000000 | 1.5 MI SE Mazama | 1971 | Stringer/Multi-beam or Girder | 30 ft | 338 | Fair |
| Twisp River Road over Little Bridge Creek No. 087782000000000 | 8.07 MI West of Twisp | 2008 | Culvert | 40 ft | 321 | Good |
| Salmon Creek RD over Salmon Creek No. 089169000000000 | 2.24 Miles N. of SR 215 | 2020 | Tee Beam | 68 ft | 274 | Good |
| Greenacres RD over Johnson Creek No. 089486000000000 | 4 Miles West of Riverside | 2023 | Culvert | 21 ft | 265 | Good |
| Lake Street over Salmon Creek No. 085060000000000 | 0.02 MI E Main ST | 1973 | Channel Beam | 24 ft | 260 | Fair |
| First Avenue over Salmon Creek No. 085260000000000 | .3 MI S of Oak ST | 1970 | Stringer/Multi-beam or Girder | 38 ft | 260 | Fair |
| Fifth Avenue over Salmon Creek No. 085265000000000 | .07 S of Tyee ST | 1970 | Stringer/Multi-beam or Girder | 38 ft | 260 | Fair |
| IRR BIA RTE 1167 over Nespelem River No. 00000000000P339 | 0.6 KM West of Agency | 1957 | Slab | 105 ft | 250 | Fair |
| Buffalo Lake RD over Little Nespelem River No. 088643000000000 | 1.2 MI SE Ind. Agcy | 2014 | Tee Beam | 63 ft | 244 | Good |
| County Road 2361 over Salmon Creek No. 085059000000000 | 0.1 MI N JCT.4015 | 1976 | Channel Beam | 38 ft | 199 | Fair |
| Chewuck Road over Falls Creek No. 060805000001006 | No Data Entered | 1949 | Frame | 55 ft | 196 | Good |
| Chewuck Road over Eightmile Creek No. 060805000001008 | No Data Entered | 1949 | Frame | 80 ft | 196 | Good |
| FAS Route K241 over Chewuch River No. 079912000000000 | 6.5 MI N of Winthrop | 1953 | Stringer/Multi-beam or Girder | 120 ft | 173 | Fair |
| Salmon/Boulder RD over North Fork Boulder Creek No. 060805000001021 | No Data Entered | 1949 | Frame | 100 ft | 158 | Fair |
| Meadows/Toats RD over Toats Coulee Creek No. 060803000001015 | No Data Entered | 1949 | Frame | 80 ft | 153 | Good |
| Meadows/Toats RD over Toats Coulee Creek No. 060803000001016 | No Data Entered | 1949 | Stringer/Multi-beam or Girder | 64 ft | 153 | Good |
| FAS Route W240 over Similkameen River No. 081659000000000 | .Senw S13 T40 R25 | 1973 | Stringer/Multi-beam or Girder | 306 ft | 122 | Good |
| Harts Pass Road over Robinson Creek No. 060805000001001 | 1.73 MI UP RD #5400 | 1955 | Stringer/Multi-beam or Girder | 67 ft | 112 | Fair |
| Bonaparte Ave. over Bonaparte Creek No. 081997000000000 | 0.1 S.Seventh St. | 1972 | Stringer/Multi-beam or Girder | 24 ft | 100 | Fair |
| Eightmile Road over Eightmile Creek No. 060805000001005 | No Data Entered | 1949 | Stringer/Multi-beam or Girder | 122 ft | 97 | Good |
| Lost River RD over Lost River No. 080358000000000 | 6.3MI NW Mazama | 1950 | Stringer/Multi-beam or Girder | 90 ft | 95 | Poor |
| FAS Route V242 over Sinlahekin Creek No. 083465000000000 | 2.3 Mi.N.Loomis | 1966 | Tee Beam | 61 ft | 93 | Fair |
| Ocr 3683 over Mill Creek No. 079694000000000 | 1.29 NO.JCT.SR155 | 1958 | Stringer/Multi-beam or Girder | 26 ft | 92 | Fair |
| County Road 1029 over Gold Creek No. 082018000000000 | 0.61 N.JCT.SR153 | 1972 | Stringer/Multi-beam or Girder | 30 ft | 90 | Good |
| Salmon Meadows RD over N. Fk Salmon Creek No. 060803000001017 | No Data Entered | 1949 | Frame | 80 ft | 76 | Good |
| Salmon Meadows RD over N.Fork Salmon Creek No. 060803000001018 | No Data Entered | 1949 | Frame | 65 ft | 76 | Fair |
| County Road 3797 over Tunk Creek No. 080187000000000 | 4.7 Mi.N.Riverside | 1973 | Stringer/Multi-beam or Girder | 32 ft | 76 | Fair |
| IRR BIA RTE 64 over West Fork San Poil River No. 00000000000P313 | 13 KM SW of Republic | 1962 | Stringer/Multi-beam or Girder | 52 ft | 75 | Fair |
| No Data Entered over Middle Fork Toats Coulee No. 061709000015070 | No Data Entered | 2011 | Culvert | 30 ft | 75 | Good |
| County Road 2017 over W.Fork Salmon Creek No. 081652000000000 | 02.23 MI W JCT 9229 | 1949 | Girder and Floorbeam System | 70 ft | 72 | Fair |
| County Road 1090 over Butter Milk Creek No. 081847000000000 | 11.1 W.SR20 @ Twisp | 1960 | Stringer/Multi-beam or Girder | 66 ft | 70 | Good |
| County Road 1089 over Twisp River No. 080552000000000 | 6.9 W.SR20 @ Twisp | 1960 | Stringer/Multi-beam or Girder | 120 ft | 65 | Good |
| Cub/Goat CR RD over Goat Creek No. 060805000001024 | No Data Entered | 1957 | Stringer/Multi-beam or Girder | 91 ft | 63 | Good |
| Hatchery Entrance over Foghorn Irrigation Canal No. 000013265-00055 | 453 Twin Lakes Road | 2012 | Frame | 29 ft | 60 | Good |
| S. Fk. Gold CR over Gold Creek No. 060804000001014 | No Data Entered | 1949 | Frame | 115 ft | 60 | Good |
| County Road 4015 over Sinlahekin Creek No. 081809000000000 | 3.1 S.9425@ Loomis | 1973 | Stringer/Multi-beam or Girder | 30 ft | 56 | Fair |
| Cecil Creek RD over Sinlahekin Creek No. 089156000000000 | 2 Miles South of Loomis | 1975 | Stringer/Multi-beam or Girder | 34 ft | 54 | Fair |
| Ray Road over N. Fk Salmon CR No. 060803000001019 | No Data Entered | 1965 | Stringer/Multi-beam or Girder | 80 ft | 53 | Good |
| FAS Route 9221 over County Road 9221 No. 080226000000000 | 0.01MI S Happy Hill RD | 1969 | Stringer/Multi-beam or Girder | 22 ft | 53 | Fair |
| County Road 1090 over Twisp River No. 081831000000000 | 10.9 W.SR20 @ Twisp | 1959 | Stringer/Multi-beam or Girder | 102 ft | 52 | Fair |
| County Road 9455 over Lost Creek No. 081953000000000 | 17.4 Mi.Se JCT.SH30 | 1958 | Stringer/Multi-beam or Girder | 43 ft | 52 | Fair |
| Ocr 3683 over Nespelem River No. 089299000000000 | 5.1 MI N. SR 155 | 2022 | Slab | 71 ft | 51 | Good |
| IRR BIA RTE 66 over Looney Creek No. 00000000000P338 | N.W. End of BIA Rt. 66 | 2001 | Stringer/Multi-beam or Girder | 50 ft | 50 | Fair |
| IRR Route 116 over Stepstone Creek No. 00000000000P340 | 13 KM North of Nespelem | 1998 | Culvert | 28 ft | 50 | Fair |
| No Data Entered over North Fork Toats Coulee No. 060803000001110 | No Data Entered | 1973 | Culvert | 22 ft | 50 | Fair |
| Black Canyon Road over Black Canyon Creek No. 060804000001023 | No Data Entered | 1965 | Stringer/Multi-beam or Girder | 30 ft | 50 | Fair |
| No Data Entered over Lower Libby Creek No. 061704000003295 | No Data Entered | 2004 | Culvert | 34 ft | 50 | Good |
| No Data Entered over War Creek No. 061704000003322 | No Data Entered | 2005 | Stringer/Multi-beam or Girder | 72 ft | 50 | Good |
| No Data Entered over Andrews Creek No. 061704000010582 | No Data Entered | 2006 | Truss - Thru | 165 ft | 50 | Fair |
| No Data Entered over Cub Creek No. 061704000013300 | No Data Entered | 2009 | Slab | 27 ft | 50 | Good |
| Broadway Street over North Fork Salmon Creek No. 085057000000000 | 0.02 E of Main St. | 1982 | Channel Beam | 26 ft | 50 | Fair |
| Silver ST over North Fork Salmon CR No. 086261000000000 | 0.01 E Main ST | 1997 | Channel Beam | 29 ft | 50 | Good |
| Ocr 3683 over Nespelem River No. 088928000000000 | 5.13 No. Jct. SR 155 | 2017 | Slab | 70 ft | 44 | Good |
| County Road 1600 over Beaver Creek No. 079893000000000 | 2.8 MI.N.JCT.SR20 | 1957 | Channel Beam | 24 ft | 43 | Poor |
| Ocr 3586 over Little Nespelem River No. 088929000000000 | 2.4 E. Indian Agcy. | 2017 | Slab | 68 ft | 42 | Good |
| Eightmile Road over Eightmile Creek No. 060805000001030 | No Data Entered | 1955 | Stringer/Multi-beam or Girder | 39 ft | 40 | Good |
| Ocr 3683 over Smith Creek No. 081382000000000 | 0.72 NO.JCT.SR155 | 1958 | Stringer/Multi-beam or Girder | 26 ft | 39 | Fair |
| Foggy Dew RD over North Fk Gold Creek No. 060804000001013 | No Data Entered | 1949 | Frame | 90 ft | 37 | Fair |
| Sinlahekin RD over Blue Lake Outlet No. 089032000000000 | 9.5 MI S. of Loomis | 2018 | Culvert | 21 ft | 36 | Good |
| Mid Salmon/Boulder over N. Fk Boulder CR No. 060805000001026 | No Data Entered | 1960 | Stringer/Multi-beam or Girder | 41 ft | 35 | Fair |
| No Data Entered over Reynolds Creek No. 061704000033773 | No Data Entered | 2008 | Culvert | 31 ft | 35 | Good |
| County Road 1637 over Beaver Creek No. 083264000000000 | 5.4 MI.N.JCT.SR20 | 1962 | Stringer/Multi-beam or Girder | 72 ft | 35 | Good |
| County Road 4723 over Nine Mile Creek No. 081837000000000 | NENWS15T40NR27E | 1980 | Stringer/Multi-beam or Girder | 24 ft | 34 | Fair |
| W. Twisp River RD over Twisp River No. 060804000001009 | No Data Entered | 1958 | Frame | 120 ft | 30 | Good |
| Bumblebee RD over Gold Creek No. 060804000001012 | No Data Entered | 1967 | Frame | 90 ft | 30 | Good |
| No Data Entered over S. Fork Gold Creek No. 061704000010815 | No Data Entered | 2006 | Culvert | 26 ft | 30 | Good |
| No Data Entered over Rainy Creek No. 061704000010816 | No Data Entered | 2006 | Culvert | 28 ft | 30 | Good |
| Conconogan Road over West Fork Salmon Creek No. 11CONR002 | Conconully Reservoir | 2018 | Stringer/Multi-beam or Girder | 56 ft | 30 | Good |
| Burma RD over Methow River No. 085744000000000 | 0.1 Mi.E. JCT SR153 | 1990 | Stringer/Multi-beam or Girder | 212 ft | 27 | Good |
| IRR BIA RTE 56 over North Star Creek No. 00000000000P303 | 16 KM North of Nespelem | 1962 | Stringer/Multi-beam or Girder | 27 ft | 25 | Fair |
| IRR BIA RTE 6 over Gold Creek No. 00000000000P314 | 21 KM SW of Republic | 1962 | Stringer/Multi-beam or Girder | 27 ft | 25 | Fair |
| IRR BIA RTE 62 over Gold Creek No. 00000000000P315 | 23 KM SW of Republic | 1962 | Stringer/Multi-beam or Girder | 27 ft | 25 | Fair |
| Dugout Mtn RD over Lost Creek No. 060803000001002 | No Data Entered | 1981 | Stringer/Multi-beam or Girder | 35 ft | 25 | Fair |
| Ortell Road over Eightmile Creek No. 060805000001003 | No Data Entered | 1955 | Frame | 57 ft | 25 | Good |
| Falls Creek Road over Falls Creek No. 060805000001004 | No Data Entered | 1950 | Slab | 44 ft | 25 | Good |
| E. Side Chewuch over Chewuch River No. 060805000001020 | No Data Entered | 1950 | Stringer/Multi-beam or Girder | 137 ft | 24 | Good |
| Chewack RD over Lake Creek No. 060805000001027 | No Data Entered | 1956 | Stringer/Multi-beam or Girder | 50 ft | 24 | Fair |
| Knox Road 3817 over Tunk Creek No. 082287000000000 | 2.7 Mi.W.Synarep | 1976 | Stringer/Multi-beam or Girder | 30 ft | 22 | Good |
| Reynolds RD over Twisp River No. 060804000001011 | No Data Entered | 1961 | Frame | 100 ft | 21 | Good |
| County Road 1075 over Twisp River No. 081087000000000 | 4.1 W.SR20 @ Twisp | 1974 | Tee Beam | 78 ft | 21 | Good |
| IRR BIA RTE 74 over Little Nespelem River No. 00000000000P336 | 4.8 KM E of Colville Agcy | 1994 | Culvert | 27 ft | 20 | Fair |
| County Road 9221 over Salmon Creek No. 083951000000000 | 12.1 MI NW Okanogan | 1969 | Stringer/Multi-beam or Girder | 26 ft | 20 | Fair |
| Salmon CR RD over Salmon Creek No. 083960000000000 | 12.7 MI NW Okanogan | 1969 | Stringer/Multi-beam or Girder | 24 ft | 20 | Fair |
| County Road 4087 over Palmer Creek No. 084713000000000 | 03.5 Mi.S.Nighthawk | 1980 | Tee Beam | 79 ft | 19 | Fair |
| Buttermilk Butte over East Fork Buttermilk CR No. 060804000001025 | No Data Entered | 1992 | Stringer/Multi-beam or Girder | 42 ft | 15 | Fair |
| Klipchuck Road over Early Winter Creek No. 060805000001007 | Road to Klipchuck Cg | 1972 | Frame | 100 ft | 15 | Good |
| IRR BIA RTE 74 over Little Nespelem River No. 00000000000P337 | 8.1 KM E of Colville Agcy | 1994 | Culvert | 28 ft | 10 | Fair |
| No Data Entered over Upper S Fk Gold Creek No. 060804000001105 | No Data Entered | 2009 | Culvert | 26 ft | 10 | Good |
| No Data Entered over Little Bridge Creek No. 060807000003003 | No Data Entered | 2001 | Culvert | 28 ft | 10 | Good |
| 4415030 over Little Bridge Creek No. 060807000003004 | No Data Entered | 2001 | Culvert | 40 ft | 10 | Good |
| No Data Entered over East Fork Buttermilk No. 060807000003005 | No Data Entered | 2001 | Culvert | 24 ft | 10 | Good |
| No Data Entered over Ben Creek over Libby Cre No. 061704000003210 | No Data Entered | 2004 | Culvert | 40 ft | 5 | Good |
| FSR 5400700 over Slate Creek No. 061704000012936 | No Data Entered | 2009 | Stringer/Multi-beam or Girder | 40 ft | 5 | Good |
| Ed Figlinski RD over Tunk Creek No. 082033000000000 | 1.1 Mi.W.Synarep | 1976 | Stringer/Multi-beam or Girder | 25 ft | 5 | Good |
| Pelican Creek RD over North Fork Salmon CR No. 060803000001010 | 6.1 Miles N of Concunully | 1964 | Frame | 60 ft | 2 | Good |
| Loup Loup Canyon R over Loup Loup Creek No. 088708000000000 | 3.98 MI N JCT SR20 | 2014 | Slab | 52 ft | 1 | Good |
Structure types in Okanogan County
| Stringer/Multi-beam or Girder | 60 | 37.3% |
| Culvert | 21 | 13.0% |
| Tee Beam | 21 | 13.0% |
| Slab | 19 | 11.8% |
| Frame | 16 | 9.9% |
| Box Beam or Girders - Multiple | 9 | 5.6% |
| Channel Beam | 7 | 4.3% |
| Truss - Thru | 3 | 1.9% |
| Girder and Floorbeam System | 3 | 1.9% |
| Arch - Deck | 2 | 1.2% |
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