Fair-condition bridges in Idaho
2,928 of Idaho's 4,646 bridges (63.0%) are rated fair.The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.Nationally, 49.6% of bridges carry this rating.
- Fair bridges
- 2,928
- 63.0% of state total
- Average age
- 53 yrs
- Posted with load limits
- 261
- Closed
- 3
Busiest fair-condition bridges
Top 300 by daily traffic · 9,680,385 total daily crossings| Bridge | County | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|---|
| I 84 Ebl & Wbl over Ridenbaugh Canal No. 000000000015680 | Ada County | 6.7 W. Boise | 1966 | Stringer/Multi-beam or Girder | 30 ft | 144,500 | Fair |
| I 84 over Ten Mile Creek No. 000000000015650 | Ada County | 0.5 W. Meridian | 1965 | Frame | 23 ft | 131,000 | Fair |
| I 184B Ebl & Wbl over S7073;CANAL;COLE RD No. 000000000018966 | Ada County | 0.7 W. Boise Wcl | 2001 | Stringer/Multi-beam or Girder | 237 ft | 76,500 | Fair |
| I 90 Eb-Wb;rmp Cd over Bnrr;post Falls Op No. 000000000016760 | Kootenai County | In Post Falls | 1977 | Stringer/Multi-beam or Girder | 210 ft | 62,000 | Fair |
| SH 55;EAGLE Road over I 84 Eb-Wb;eagle RD Ic No. 000000000026280 | Ada County | 1.7 E. Meridian | 1990 | Stringer/Multi-beam or Girder | 268 ft | 58,000 | Fair |
| I 84 ;us 20-26 over Stp 7773;10th Ave Ic No. 000000000015505 | Canyon County | In CALDWELL;10th Ave | 1983 | Box Beam or Girders - Single or Spread | 249 ft | 58,000 | Fair |
| I 184;W Fairview over Settlers Canal No. 000000000018995 | Ada County | In Boise | 1967 | Culvert | 45 ft | 56,500 | Fair |
| I 84 over Farmers Sebree Canal No. 000000000015480 | Canyon County | In Caldwell | 1980 | Culvert | 47 ft | 53,500 | Fair |
| I 84 ;us 20-26 over Boise River;caldwell Br. No. 000000000015490 | Canyon County | In Caldwell | 1983 | Stringer/Multi-beam or Girder | 296 ft | 53,500 | Fair |
| SH 69 over Ten Mile Creek No. 000000000015150 | Ada County | 1.0 S. Meridian | 1963 | Frame | 21 ft | 49,500 | Fair |
| SMA7235;NW Blvd over I 90 Eb-Wb;nw Blvd Ic No. 000000000017336 | Kootenai County | Coeur D Alene Wcl | 2001 | Stringer/Multi-beam or Girder | 183 ft | 40,000 | Fair |
| US 20 over Porter Canal No. 000000000012330 | Bonneville County | In Idaho Falls | 1966 | Frame | 35 ft | 38,000 | Fair |
| US 20 Ebl & Wbl over Snake R.;johns Hole Br. No. 000000000012335 | Bonneville County | In Idaho Falls | 1966 | Stringer/Multi-beam or Girder | 179 ft | 38,000 | Fair |
| US 20 over Sma 7096;RIVERSIDE Dr.Ic No. 000000000012340 | Bonneville County | In Idaho Falls;riverside | 1969 | Stringer/Multi-beam or Girder | 160 ft | 38,000 | Fair |
| US 20 Wbl & Ebl over Boise River No. 000000000012263 | Ada County | In Boise;boise Connector | 1990 | Box Beam or Girders - Multiple | 597 ft | 37,500 | Fair |
| US 20 Wbl & Ebl over Sma 9083;27th Street No. 000000000012264 | Ada County | In Boise;boise Connector | 1990 | Stringer/Multi-beam or Girder | 87 ft | 37,500 | Fair |
| SH 44 over Willow Creek No. 000000000014265 | Canyon County | At Middleton | 1953 | Frame | 26 ft | 36,000 | Fair |
| US 20 over Uprr;new York Canal No. 000000000012285 | Ada County | 1 S. Boise;broadway Ave | 1970 | Stringer/Multi-beam or Girder | 302 ft | 35,500 | Fair |
| Stp 9183;TEN Mile over Future North Crossing No. 000000000019768 | Ada County | 1.2 S 2.1 W of Meridian | 2011 | Stringer/Multi-beam or Girder | 100 ft | 35,000 | Fair |
| US 20 over Sage Canal No. 000000000012395 | Bonneville County | 5.5 N. Idaho Falls | 1970 | Frame | 21 ft | 34,500 | Fair |
| US 20 over Garfield Ucon Canal No. 000000000012420 | Jefferson County | 1.4 S. Rigby | 1972 | Frame | 21 ft | 34,500 | Fair |
| SH 69 over Ridenbaugh Canal No. 000000000015140 | Ada County | 2.2 S. Meridian | 1990 | Frame | 32 ft | 34,000 | Fair |
| SH 69 over Rawson Canal No. 000000000015135 | Ada County | 4.0 S. Meridian | 1990 | Culvert | 23 ft | 33,500 | Fair |
| SH 44 over I 84 Eb-Wb;middleton Ic No. 000000000014260 | Canyon County | 1.9 W. Caldwell | 1964 | Stringer/Multi-beam or Girder | 232 ft | 33,500 | Fair |
| US 95 over I 90 E-Wb;lincoln Way Ic No. 000000000018690 | Kootenai County | In Coeur Dalene | 1960 | Stringer/Multi-beam or Girder | 192 ft | 33,500 | Fair |
| US 93 over Perrine Coulee;bike Path No. 000000000019393 | Twin Falls County | In Twin Falls | 2006 | Box Beam or Girders - Multiple | 39 ft | 33,000 | Fair |
| US 20 Wbl over Americana BLVD;15th St. No. 000000000012774 | Ada County | In Boise; Front Street | 1992 | Box Beam or Girders - Multiple | 549 ft | 32,500 | Fair |
| I 90 Wbl over SH 41;SH 41 Ic No. 000000000016790 | Kootenai County | 1.7 E. Post Falls | 1971 | Stringer/Multi-beam or Girder | 130 ft | 32,250 | Fair |
| US 20 over UPRR No. 000000000012315 | Bonneville County | In Idaho Falls | 1966 | Stringer/Multi-beam or Girder | 145 ft | 32,000 | Fair |
| US 20 Wbl & Ebl over Sma 7076;LINDSAY Blvd.Ic No. 000000000012320 | Bonneville County | In Idaho Falls;lindsay Bl | 1966 | Stringer/Multi-beam or Girder | 117 ft | 32,000 | Fair |
| Stp 7446;SUNNYSIDE over Idaho Canal No. 000000000021626 | Bonneville County | 1.6 S 1.0 E Idaho Falls | 2004 | Frame | 35 ft | 32,000 | Fair |
| SH 44 over Canyon Creek No. 000000000014275 | Canyon County | 1.6 E. Middleton | 1956 | Frame | 27 ft | 32,000 | Fair |
| I 90 Wbl over Spokane River No. 000000000016735 | Kootenai County | At Idaho Wash.State Line | 1976 | Stringer/Multi-beam or Girder | 465 ft | 32,000 | Fair |
| I 90 Ebl over Spokane River No. 000000000016740 | Kootenai County | At Idaho Wash.State Line | 1976 | Stringer/Multi-beam or Girder | 465 ft | 32,000 | Fair |
| US 93 over Snake River; Perrine Br. No. 000000000017580 | Twin Falls County | 0.6 N. Twin Falls | 1976 | Arch - Deck | 1,500 ft | 31,500 | Fair |
| I 90 Wbl over Huetter Road Gs No. 000000000016795 | Kootenai County | 3.8 W. Coeur Dalene | 1971 | Stringer/Multi-beam or Girder | 114 ft | 31,250 | Fair |
| I 90 Ebl over Huetter Road Gs No. 000000000016800 | Kootenai County | 3.8 W. Coeur Dalene | 1971 | Stringer/Multi-beam or Girder | 130 ft | 31,250 | Fair |
| I 90 Ebl over Atlas Road Gs No. 000000000016805 | Kootenai County | 2.6 W. Coeur Dalene | 1971 | Stringer/Multi-beam or Girder | 96 ft | 31,250 | Fair |
| I 90 Wbl over Atlas Road Gs No. 000000000016810 | Kootenai County | 2.6 W. Coeur Dalene | 1971 | Stringer/Multi-beam or Girder | 96 ft | 31,250 | Fair |
| I 90 Ebl over Pedestrian/Bike Path No. 000000000016815 | Kootenai County | Coeur Dalene Nwcl | 1971 | Stringer/Multi-beam or Girder | 130 ft | 31,250 | Fair |
| I 90 Ebl over S 8505;PLEASANT View Ic No. 000000000016745 | Kootenai County | 2.1 E. Ida-Wa Line | 1976 | Stringer/Multi-beam or Girder | 161 ft | 31,000 | Fair |
| I 90 Wbl over S 8505;PLEASANT View Ic No. 000000000016750 | Kootenai County | 2.1 E. Ida-Wa Line | 1976 | Stringer/Multi-beam or Girder | 161 ft | 31,000 | Fair |
| I 90 Ebl over I 90B;POST Falls Ic No. 000000000016765 | Kootenai County | In Post Falls;spokane St. | 1977 | Box Beam or Girders - Single or Spread | 171 ft | 31,000 | Fair |
| I 90 Wbl over I 90B;POST Falls Ic No. 000000000016770 | Kootenai County | In Post Falls;spokane St. | 1977 | Box Beam or Girders - Single or Spread | 171 ft | 31,000 | Fair |
| Sand Hollow Road over I 84;SAND Hollow RD Gs No. 000000000027580 | Canyon County | 6.3 W. Caldwell | 1962 | Stringer/Multi-beam or Girder | 228 ft | 30,500 | Fair |
| Sma 7113; Curtis over Settlers Canal No. 000000000026348 | Ada County | In Boise | 2000 | Stringer/Multi-beam or Girder | 71 ft | 29,000 | Fair |
| STC8223;NORTHSIDE over Uprr;nampa RR Overpass No. 000000000014730 | Canyon County | In Nampa | 1968 | Stringer/Multi-beam or Girder | 430 ft | 29,000 | Fair |
| US 20 over Burgess Canal No. 000000000012435 | Jefferson County | 0.7 S. Rigby | 1975 | Stringer/Multi-beam or Girder | 92 ft | 28,500 | Fair |
| US 20 Eb-Wb over SH 48;RIGBY Gs No. 000000000012440 | Jefferson County | In Rigby | 1976 | Stringer/Multi-beam or Girder | 147 ft | 28,500 | Fair |
| I 184 Ebl Connectr over US 20-26;BOISE Rv Slough No. 000000000018996 | Ada County | In Boise; Nwcl | 1991 | Box Beam or Girders - Single or Spread | 622 ft | 28,250 | Fair |
| I 184 Wbl Connectr over US 20-26;BOISE Rv Slough No. 000000000018997 | Ada County | In Boise;chinden Blvd Ic | 1991 | Box Beam or Girders - Single or Spread | 715 ft | 28,250 | Fair |
| US 20; I 84B over Boise River;broadway Br No. 000000000012271 | Ada County | In Boise; Broadway Ave | 2016 | Stringer/Multi-beam or Girder | 472 ft | 28,000 | Fair |
| US 20 Ebl over Americana BLVD;15th St. No. 000000000012773 | Ada County | In Boise; Myrtle Street | 1992 | Box Beam or Girders - Multiple | 540 ft | 28,000 | Fair |
| Nhs 7433;VISTA Ave over I 84 Eb-Wb;vista Ave Ic No. 000000000021591 | Ada County | In Boise | 2010 | Stringer/Multi-beam or Girder | 182 ft | 28,000 | Fair |
| Nhs 7433;VISTA Ave over New York Canal No. 000000000021595 | Ada County | In Boise;vista Ave. | 1973 | Stringer/Multi-beam or Girder | 81 ft | 28,000 | Fair |
| US 20 over Willow Creek No. 000000000012375 | Bonneville County | 3 N. Idaho Falls | 1970 | Frame | 22 ft | 27,000 | Fair |
| US 20 over Anderson Canal No. 000000000012380 | Bonneville County | 3.8 N. Idaho Falls | 1970 | Frame | 24 ft | 27,000 | Fair |
| I 84B over Indian Creek No. 000000000013500 | Canyon County | In Nampa | 1951 | Stringer/Multi-beam or Girder | 26 ft | 26,500 | Fair |
| US 20 ;i 84B over Ridenbaugh Canal No. 000000000012275 | Ada County | In Boise;broadway Ave | 1970 | Frame | 45 ft | 26,000 | Fair |
| Sma 7563;OVERLAND over Ridenbaugh Canal No. 000000000019836 | Ada County | 1.5 S. 2.9 E. Meridian | 1991 | Frame | 31 ft | 26,000 | Fair |
| Sma 7406;PANCHERI over Porter Canal No. 000000000021561 | Bonneville County | In Idaho Falls | 1998 | Frame | 27 ft | 26,000 | Fair |
| Sma 7406;PANCHERI over Snake River No. 000000000021565 | Bonneville County | In Idaho Falls | 1971 | Stringer/Multi-beam or Girder | 443 ft | 26,000 | Fair |
| I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell No. 000000000012180 | Canyon County | In Caldwell | 1983 | Stringer/Multi-beam or Girder | 285 ft | 26,000 | Fair |
| SMA8513;ID Cntr RD over Phyllis Canal No. 000000000026945 | Canyon County | 2.5 N. 2.4 E. Nampa | 1987 | Frame | 27 ft | 26,000 | Fair |
| I 84B over Snake River;overland Br No. 000000000013331 | Cassia County | Near Burley Ncl | 2001 | Stringer/Multi-beam or Girder | 850 ft | 26,000 | Fair |
| SH 55 over Wilson Drain No. 000000000014715 | Canyon County | 2 W. Nampa | 1973 | Stringer/Multi-beam or Girder | 48 ft | 25,000 | Fair |
| SH 55 over Elijah Drain No. 000000000014720 | Canyon County | At Nampa Nwcl | 1973 | Stringer/Multi-beam or Girder | 54 ft | 25,000 | Fair |
| Sma 7113;CURTIS RD over I 184B;CURTIS RD Ic No. 000000000021285 | Ada County | In Boise;curtis Road | 1968 | Stringer/Multi-beam or Girder | 203 ft | 24,500 | Fair |
| Overland/Cole Road over I 84;COLE/OVERLAND Ic No. 000000000021661 | Ada County | In Boise | 1996 | Stringer/Multi-beam or Girder | 216 ft | 24,500 | Fair |
| STP8393;FRANKLIN B over I 84;FRANKLIN Blvd Ic No. 000000000021882 | Canyon County | In Nampa | 2000 | Stringer/Multi-beam or Girder | 225 ft | 24,500 | Fair |
| I 84 over N Canal No. 000000000016155 | Jerome County | 0.8 E. Jerome | 1966 | Frame | 37 ft | 24,500 | Fair |
| SMA7553;FEDERAL Wy over US 20 26;FEDERAL Way Ic No. 000000000021675 | Ada County | In Boise;federal Way | 1970 | Stringer/Multi-beam or Girder | 339 ft | 24,000 | Fair |
| SMA9463;FIVE Mile over I 84;FIVE Mile RD Gs No. 000000000026290 | Ada County | 5.4 W. Boise | 1966 | Stringer/Multi-beam or Girder | 220 ft | 24,000 | Fair |
| Rossi Street over Loggers Creek No. 000000000025895 | Ada County | In Boise;rossi ST | 1979 | Tee Beam | 77 ft | 23,500 | Fair |
| Sma 7563;OVERLAND over Ten Mile Creek No. 000000000021890 | Ada County | 1.0 S. 0.1 E. Meridian | 1986 | Culvert | 26 ft | 23,000 | Fair |
| SMA9803;MAPLE Grve over Finch Lateral No. 000000000025818 | Ada County | In Boise; Maple Grove | 2008 | Box Beam or Girders - Multiple | 24 ft | 23,000 | Fair |
| I 84 over C Canal No. 000000000016245 | Jerome County | 19.3 W. Burley | 1966 | Frame | 24 ft | 23,000 | Fair |
| Stp 7403;FRANKLIN over Ridenbaugh Canal No. 000000000021526 | Ada County | Franklin RD in Boise | 1995 | Frame | 34 ft | 22,500 | Fair |
| SMA9213;VETERANS P over Boise River No. 000000000026350 | Ada County | In Boise;veterans Parkway | 1984 | Box Beam or Girders - Single or Spread | 346 ft | 22,500 | Fair |
| SMA9213;VETERANS P over Boise River;n Channel No. 000000000026355 | Ada County | In Boise;veterans Parkway | 1985 | Culvert | 21 ft | 22,500 | Fair |
| SMA9213;VETERANS P over Farmers Union Canal No. 000000000026360 | Ada County | In Boise;veterans Parkway | 1985 | Box Beam or Girders - Multiple | 51 ft | 22,500 | Fair |
| Sma 7406;17th ST over Butte Arm Canal No. 000000000021575 | Bonneville County | In Idaho Falls | 1959 | Frame | 45 ft | 22,500 | Fair |
| Sma 9773;LINDER RD over Phyllis Canal No. 000000000019780 | Ada County | 4.7 N. Meridian | 1990 | Stringer/Multi-beam or Girder | 98 ft | 22,000 | Fair |
| Sma 9773;LINDER RD over Boise River;s.Channel No. 000000000019786 | Ada County | 1.6 S. 3.0 W. Eagle | 1993 | Box Beam or Girders - Multiple | 105 ft | 22,000 | Fair |
| Sma 9773;LINDER RD over Boise R;middle Channel No. 000000000019791 | Ada County | 1.2 S. 3.0 W. Eagle | 1991 | Box Beam or Girders - Multiple | 49 ft | 22,000 | Fair |
| Sma 8963;EAGLE RD over Ridenbaugh Canal No. 000000000026091 | Ada County | 2.0 S. 1.9 E. Meridian | 2011 | Slab | 38 ft | 22,000 | Fair |
| STP8393;FRANKLIN B over Phyllis Canal No. 000000000021875 | Canyon County | In Nampa;franklin Blvd. | 1963 | Stringer/Multi-beam or Girder | 30 ft | 22,000 | Fair |
| SMA7344;BRYDEN Cyn over Snake R;high/Southway Br No. 000000000021495 | Nez Perce County | In Lewiston;bryden Ext | 1982 | Box Beam or Girders - Single or Spread | 1,866 ft | 22,000 | Fair |
| Sma 9183;TEN Mile over Five Mile Creek No. 000000000019776 | Ada County | 1.7 N. 2.0 W. Meridian | 2020 | Frame | 25 ft | 21,500 | Fair |
| SH 69 over Kuna Canal No. 000000000015125 | Ada County | 7.1 S. Meridian | 1990 | Frame | 21 ft | 21,000 | Fair |
| SH 69 over Mason Crk;feeder Canal No. 000000000015130 | Ada County | 5.7 S. Meridian | 1990 | Frame | 30 ft | 21,000 | Fair |
| US 12 over US 12;SNAKE River No. 000000000010360 | Nez Perce County | In Lewiston at State Line | 1939 | Movable - Lift | 1,424 ft | 21,000 | Fair |
| US 12 over Clearwater River;bnrr No. 000000000010375 | Nez Perce County | In Lewiston | 1951 | Stringer/Multi-beam or Girder | 1,352 ft | 21,000 | Fair |
| SMA7553;FEDERAL Wy over New York Canal No. 000000000021670 | Ada County | 1.1 SE Boise Scl | 1989 | Slab | 146 ft | 20,500 | Fair |
| SMA9783;LOCUST Grv over I 84;LOCUST Grove Gs No. 000000000026137 | Ada County | 1.8 SE Meridian | 2008 | Stringer/Multi-beam or Girder | 275 ft | 20,500 | Fair |
| I 15B ;broadway ST over Snake River;broadway St. No. 000000000012105 | Bonneville County | In Idaho Falls | 1981 | Stringer/Multi-beam or Girder | 287 ft | 20,500 | Fair |
| SMA7316;HOLMES Ave over Idaho Canal No. 000000000021440 | Bonneville County | In Idaho Falls;holmes Ave | 1990 | Slab | 49 ft | 20,500 | Fair |
| I 90 over Potlatch Hill Rd. Gs No. 000000000016894 | Kootenai County | 0.5 S. Coeur Dalene | 1992 | Stringer/Multi-beam or Girder | 238 ft | 20,500 | Fair |
| Nhs 7433;VISTA Ave over Ridenbaugh Canal No. 000000000021600 | Ada County | In Boise;vista Ave. | 1947 | Tee Beam | 37 ft | 20,000 | Fair |
| SMA8353;16th Ave over UPRR;1st ST N No. 000000000021845 | Canyon County | In NAMPA;16th Ave | 1969 | Stringer/Multi-beam or Girder | 766 ft | 20,000 | Fair |
| SMA8353;16th Ave N over Indian Creek No. 000000000021850 | Canyon County | In NAMPA;16th Ave.N. | 1969 | Stringer/Multi-beam or Girder | 26 ft | 20,000 | Fair |
| SH 33 over Rexburg Canal No. 000000000013890 | Madison County | In Rexburg | 1938 | Frame | 23 ft | 20,000 | Fair |
| Sma 9183;TEN Mile over Ridenbaugh Canal No. 000000000019761 | Ada County | 0.3 S. Overland-Ten Mile | 1993 | Frame | 34 ft | 19,500 | Fair |
| Stp 9183;TEN Mile over Tasa Drive No. 000000000019763 | Ada County | 1.4 S 2.1 W. Meridian | 2011 | Stringer/Multi-beam or Girder | 100 ft | 19,500 | Fair |
| SMA7013;CLOVERDALE over Ridenbaugh Canal No. 000000000019821 | Ada County | 0.7S. 2.8E Meridian | 2005 | Frame | 23 ft | 19,500 | Fair |
| SMA7013;CLOVERDALE over Ridenbaugh Canal No. 000000000021191 | Ada County | 3.0 E. Meridian | 1992 | Frame | 30 ft | 19,500 | Fair |
| SH 55 over Deer Flat Canal No. 000000000014705 | Canyon County | 3.5 W. Nampa | 1973 | Frame | 23 ft | 19,500 | Fair |
| US 20 Ebl & Wbl over Parks Lewisville Canal No. 000000000012455 | Jefferson County | 1.5 N. Rigby | 1975 | Frame | 31 ft | 19,500 | Fair |
| US 95 over Payette River No. 000000000018110 | Payette County | 1.8 S. Payette Scl | 1968 | Stringer/Multi-beam or Girder | 484 ft | 19,500 | Fair |
| STP7343;ORCHARD ST over I 184B;ORCHARD ST Gs No. 000000000021325 | Ada County | In Boise;orchard St. | 1968 | Stringer/Multi-beam or Girder | 142 ft | 19,000 | Fair |
| I 15 Nbl over I 15B;POCATELLO Creek Ic No. 000000000011271 | Bannock County | In Pocatello | 1999 | Stringer/Multi-beam or Girder | 148 ft | 19,000 | Fair |
| I 15 Sbl over I 15B;POCATELLO Creek Ic No. 000000000011276 | Bannock County | In Pocatello | 1998 | Stringer/Multi-beam or Girder | 148 ft | 19,000 | Fair |
| Sma 8383;LONE Star over Phyllis Canal No. 000000000021860 | Canyon County | In Nampa;lone Star Rd. | 1973 | Tee Beam | 22 ft | 19,000 | Fair |
| I 84 over 250 North Rd.Gs No. 000000000016065 | Gooding County | 5.0 W. Wendell | 1972 | Frame | 25 ft | 19,000 | Fair |
| I 84 over W-26 Canal No. 000000000016080 | Gooding County | 2.2 W. Wendell | 1972 | Frame | 24 ft | 19,000 | Fair |
| US 95 over Pend Oreille R;sandpoint No. 000000000018715 | Bonner County | 1.0 S. Sandpoint | 1981 | Box Beam or Girders - Multiple | 5,899 ft | 18,500 | Fair |
| STP8393;FRANKLIN B over Phyllis Canal No. 000000000021865 | Canyon County | In Nampa;franklin Blvd. | 1963 | Stringer/Multi-beam or Girder | 30 ft | 18,500 | Fair |
| STP8393;FRANKLIN B over Phyllis Canal No. 000000000021870 | Canyon County | In Nampa;franklin Blvd. | 1963 | Stringer/Multi-beam or Girder | 30 ft | 18,500 | Fair |
| I 90 over Bennett Bay;sunnyside RD No. 000000000016896 | Kootenai County | 2.0E. 2.0S. Coeur Dalene | 1991 | Segmental Box Girder | 1,730 ft | 18,500 | Fair |
| I 90 over Timothy Ln;evergreen Gs No. 000000000016897 | Kootenai County | 4.0E. 4.0S. Coeur Dalene | 1992 | Stringer/Multi-beam or Girder | 211 ft | 18,500 | Fair |
| I 90 over Blue Creek Bay West Gs No. 000000000016901 | Kootenai County | 6.0E. 4.0S. Couer Dalene | 1992 | Stringer/Multi-beam or Girder | 134 ft | 18,500 | Fair |
| US 26 Ebl & Wbl over Snake River;w.Blackfoot No. 000000000013225 | Bingham County | In Blackfoot | 1965 | Stringer/Multi-beam or Girder | 467 ft | 18,000 | Fair |
| I 15B ;broadway ST over Porter Canal No. 000000000012110 | Bonneville County | In Idaho Falls;broadway | 1987 | Frame | 24 ft | 18,000 | Fair |
| Sma 7166;1st ST over Idaho Canal No. 000000000021335 | Bonneville County | In Idaho FALLS;1st St. | 1980 | Stringer/Multi-beam or Girder | 60 ft | 18,000 | Fair |
| Sma 7166;1st ST over Meppen Canal No. 000000000021340 | Bonneville County | In Idaho FALLS;1st Street | 1980 | Frame | 23 ft | 18,000 | Fair |
| I 84B over I 84;NW Caldwell Ic No. 000000000012185 | Canyon County | In Caldwell | 1983 | Box Beam or Girders - Single or Spread | 227 ft | 18,000 | Fair |
| STP7605;SELTICE Wy over I 90 Eb-Wb;seltice Ic No. 000000000030575 | Kootenai County | At Post Falls Wcl | 1977 | Box Beam or Girders - Single or Spread | 395 ft | 18,000 | Fair |
| US 20 Wbl over Ririe Outlet Channel No. 000000000012385 | Bonneville County | 5.4 N. Idaho Falls | 1974 | Slab | 58 ft | 17,750 | Fair |
| US 20 Ebl over Ririe Outlet Channel No. 000000000012390 | Bonneville County | 5.4 N. Idaho Falls | 1974 | Slab | 58 ft | 17,750 | Fair |
| US 20 Ebl over SH43;EIRR;W Belt Brdg Ic No. 000000000012400 | Bonneville County | Near Ucon | 1972 | Stringer/Multi-beam or Girder | 234 ft | 17,750 | Fair |
| US 20 Wbl over SH43;EIRR;W Belt Brdg Ic No. 000000000012405 | Bonneville County | Near Ucon | 1986 | Stringer/Multi-beam or Girder | 235 ft | 17,750 | Fair |
| Sma 9833;MILWAUKEE over Ridenbaugh Canal No. 000000000025840 | Ada County | In Boise;milwaukee ST | 1979 | Tee Beam | 26 ft | 17,500 | Fair |
| Stc 7195;4th St. over I 90 EB-WB;4th St.Ic No. 000000000021365 | Kootenai County | In Coeur DALENE;4th St. | 1985 | Stringer/Multi-beam or Girder | 205 ft | 17,500 | Fair |
| Sma 7363;EMERALD over Ridenbaugh Canal No. 000000000026040 | Ada County | In Boise;emerald ST | 1979 | Tee Beam | 36 ft | 17,000 | Fair |
| I 84B Sbl over Snake River;heyburn Br. No. 000000000013675 | Cassia County | At Burley Ncl | 1977 | Tee Beam | 1,313 ft | 17,000 | Fair |
| SH 33 over S.Fk.Teton River No. 000000000013895 | Madison County | In Rexburg | 1971 | Stringer/Multi-beam or Girder | 144 ft | 17,000 | Fair |
| Nhs 7553;CAPITOL over Boise River No. 000000000021445 | Ada County | In Boise;capitol Blvd | 1931 | Arch - Deck | 303 ft | 16,500 | Fair |
| Stc 9623;W. Wright over New York Canal No. 000000000026168 | Ada County | In Boise;w.Wright ST | 1989 | Stringer/Multi-beam or Girder | 125 ft | 16,000 | Fair |
| Nhs 7183;9th ST over Boise River No. 000000000021655 | Ada County | In Boise;s. 9th Street | 1987 | Box Beam or Girders - Multiple | 311 ft | 15,500 | Fair |
| US 20 over Fifteen Mile Creek No. 000000000012245 | Canyon County | 5.2 E. Caldwell | 1947 | Frame | 25 ft | 15,500 | Fair |
| I 84 on Ramp over Indian Creek No. 000000000014727 | Canyon County | In Nampa | 2006 | Stringer/Multi-beam or Girder | 319 ft | 15,500 | Fair |
| I 84 Wbl over Sand Hollow Creek No. 000000000015430 | Canyon County | 8.3 W. Caldwell | 1962 | Frame | 26 ft | 15,500 | Fair |
| I 84 Ebl over Sand Hollow Creek No. 000000000015435 | Canyon County | 8.3 W. Caldwell | 1962 | Frame | 26 ft | 15,500 | Fair |
| I 84 Ebl over Purple Sage Gs No. 000000000015450 | Canyon County | 3.3 W. Caldwell | 1962 | Stringer/Multi-beam or Girder | 108 ft | 15,500 | Fair |
| I 84 Wbl over Purple Sage Gs No. 000000000015455 | Canyon County | 3.3 W. Caldwell | 1962 | Stringer/Multi-beam or Girder | 108 ft | 15,500 | Fair |
| US 95 over Blackwell Slough No. 000000000018675 | Kootenai County | 1.3 S. Coeur Dalene | 1969 | Tee Beam | 122 ft | 15,500 | Fair |
| US 95 over Spokane R;ped/Bike Path No. 000000000018680 | Kootenai County | Wcl Coeur Dalene | 1968 | Stringer/Multi-beam or Girder | 1,018 ft | 15,500 | Fair |
| US 95 over I 90B;NW Blvd;us 95 Ic No. 000000000018685 | Kootenai County | In Coeur Dalene | 1968 | Stringer/Multi-beam or Girder | 85 ft | 15,500 | Fair |
| Sma 7155;GOVT Way over I 90 Eb-Wb; Govt Way Gs No. 000000000021331 | Kootenai County | In Coeur D Alene | 2006 | Stringer/Multi-beam or Girder | 175 ft | 15,500 | Fair |
| I 84 Wbl over D Line Canal No. 000000000015420 | Payette County | 9.1 W. Caldwell | 1961 | Frame | 28 ft | 15,500 | Fair |
| US 30 over Perrine Coulee Canal No. 000000000013635 | Twin Falls County | Near Twin Falls Secl | 1960 | Frame | 25 ft | 15,500 | Fair |
| I 84 Ebl over Indian Creek No. 000000000015805 | Ada County | 15.9 E. Boise Ecl | 1953 | Tee Beam | 26 ft | 15,250 | Fair |
| I 84 Wbl over Indian Creek No. 000000000015810 | Ada County | 15.9 E. Boise Ecl | 1960 | Tee Beam | 26 ft | 15,250 | Fair |
| US 20 Ebl over Snake River;lorenzo Br. No. 000000000012495 | Jefferson County | 0.3 N. Lorenzo | 1980 | Stringer/Multi-beam or Girder | 639 ft | 15,250 | Fair |
| US 20 Wbl over Snake River;lorenzo Br. No. 000000000012500 | Jefferson County | 0.3 N. Lorenzo | 1974 | Stringer/Multi-beam or Girder | 642 ft | 15,250 | Fair |
| I 84 Wbl over Kuna Rd; Blacks Creek RD No. 000000000015781 | Ada County | 9.2 E. Boise Ecl | 2020 | Stringer/Multi-beam or Girder | 114 ft | 15,000 | Fair |
| Sma 7143; Ustick over Settlers Canal No. 000000000021297 | Ada County | Ustick Road in Boise | 2000 | Stringer/Multi-beam or Girder | 112 ft | 15,000 | Fair |
| Nhm 7683;ORCHARD over New York Canal No. 000000000021730 | Ada County | In Boise;orchard Street | 1990 | Stringer/Multi-beam or Girder | 129 ft | 15,000 | Fair |
| I 15 Sbl over Sidehill Canal No. 000000000011690 | Bonneville County | 2.7 S. Idaho Falls | 1962 | Frame | 32 ft | 15,000 | Fair |
| I 84B Nbl over Snake River;heyburn Br. No. 000000000013670 | Cassia County | At Burley Ncl | 1955 | Tee Beam | 1,313 ft | 15,000 | Fair |
| SH 79 over I 84 Eb-Wb;s.Jerome Ic No. 000000000015310 | Jerome County | 2.8 E. Jerome | 1966 | Stringer/Multi-beam or Girder | 470 ft | 15,000 | Fair |
| I 90 Ebl & Wbl over Cedar Creek No. 000000000016930 | Kootenai County | 11.6 E. Coeur Dalene | 1988 | Culvert | 25 ft | 15,000 | Fair |
| I 90 Ebl & Wbl over Cedar Creek No. 000000000016950 | Kootenai County | 12.6 E. Coeur Dalene | 1988 | Culvert | 21 ft | 15,000 | Fair |
| I 90 Ebl & Wbl over Cedar Creek No. 000000000016955 | Kootenai County | 12.7 E. Coeur Dalene | 1988 | Culvert | 21 ft | 15,000 | Fair |
| I 90 Ebl & Wbl over Fourth of July Creek No. 000000000017000 | Kootenai County | 19.0 E. Coeur Dalene | 1958 | Frame | 23 ft | 15,000 | Fair |
| US 93 over Rock Creek No. 000000000019391 | Twin Falls County | 2.5 W. Twin Falls | 2011 | Stringer/Multi-beam or Girder | 498 ft | 15,000 | Fair |
| Sma 7143;USTICK RD over Five Mile Creek No. 000000000026096 | Ada County | 1.5 N. 1.2 W. Meridian | 1991 | Frame | 23 ft | 14,500 | Fair |
| SH 75 over Big Wood River No. 000000000017671 | Blaine County | 0.6 S. Ketchum Scl | 2017 | Stringer/Multi-beam or Girder | 231 ft | 14,500 | Fair |
| Sma 7166;1st ST over Sand Creek No. 000000000021345 | Bonneville County | Ammon | 1957 | Tee Beam | 70 ft | 14,500 | Fair |
| US 20 over Mason Drain Ditch No. 000000000012240 | Canyon County | 3.6 E. Caldwell | 1947 | Frame | 25 ft | 14,500 | Fair |
| I 84 Ebl over US 93;W. Twin Falls Ic No. 000000000016181 | Jerome County | 3.6 N. Twin Falls | 2013 | Stringer/Multi-beam or Girder | 161 ft | 14,500 | Fair |
| I 84 Wbl over US 93;W.TWIN Falls Ic No. 000000000016186 | Jerome County | 3.6 N. Twin Falls | 2003 | Stringer/Multi-beam or Girder | 161 ft | 14,500 | Fair |
| SH 41 over Burlington Northern RR No. 000000000014241 | Kootenai County | 0.3 N. Rathdrum | 2014 | Stringer/Multi-beam or Girder | 205 ft | 14,500 | Fair |
| I 15 Nbl over Private Rd.;machine Pass No. 000000000011305 | Bannock County | 6.9 N. Pocatello | 1959 | Frame | 24 ft | 14,250 | Fair |
| I 15 Sbl over Private Rd.;machine Pass No. 000000000011310 | Bannock County | 6.9 N. Pocatello | 1959 | Frame | 24 ft | 14,250 | Fair |
| I 15 Nbl over Fort Hall Main Canal No. 000000000011335 | Bannock County | 9.8 N. Pocatello | 1960 | Stringer/Multi-beam or Girder | 112 ft | 14,250 | Fair |
| I 15 Sbl over Fort Hall Main Canal No. 000000000011340 | Bannock County | 9.8 N. Pocatello | 1960 | Stringer/Multi-beam or Girder | 112 ft | 14,250 | Fair |
| I 15 Nbl over Aberdeen Springfield Cnl No. 000000000011550 | Bingham County | 5.8 N. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 120 ft | 14,250 | Fair |
| I 15 Sbl over Aberdeen Springfield Cnl No. 000000000011555 | Bingham County | 5.8 N. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 120 ft | 14,250 | Fair |
| I 15 Nbl over Peoples Canal No. 000000000011560 | Bingham County | 5.8 N. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 80 ft | 14,250 | Fair |
| I 15 Sbl over Peoples Canal No. 000000000011565 | Bingham County | 5.8 N. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 80 ft | 14,250 | Fair |
| I 84 Ebl over Squaw Creek No. 000000000015825 | Elmore County | 14.2 W. Mountain Home | 1953 | Tee Beam | 42 ft | 14,250 | Fair |
| I 84 Wbl over Squaw Creek No. 000000000015830 | Elmore County | 14.2 W. Mountain Home | 1960 | Tee Beam | 42 ft | 14,250 | Fair |
| I 84 Wbl over Canyon Creek No. 000000000015845 | Elmore County | 5.5 W. Mountain Home | 1959 | Tee Beam | 36 ft | 14,250 | Fair |
| Stp 7343;MAIN ST over Boise River No. 000000000012775 | Ada County | In Boise;main St. Wbl | 1965 | Stringer/Multi-beam or Girder | 284 ft | 14,000 | Fair |
| SMA7605:SELTICE Wy over Seltice Way Ped Op No. 000000000030541 | Kootenai County | At Coeur Dalene Wcl | 2007 | Stringer/Multi-beam or Girder | 165 ft | 14,000 | Fair |
| I 15 Nbl over Gibson Canal No. 000000000011415 | Bingham County | 5.5 S. Blackfoot | 1959 | Frame | 21 ft | 13,750 | Fair |
| SH 44 over Middleton Canal No. 000000000014280 | Ada County | 1.8 W. Eagle | 1959 | Frame | 40 ft | 13,500 | Fair |
| SH 44 ;glenwood RD over Boise River;glenwood Br No. 000000000014294 | Ada County | In Boise | 1995 | Box Beam or Girders - Multiple | 341 ft | 13,500 | Fair |
| SH 55 over Dry Creek No. 000000000014756 | Ada County | 8.1 NW Boise Wcl | 1997 | Stringer/Multi-beam or Girder | 63 ft | 13,500 | Fair |
| SMA7013;CLOVERDALE over Ridenbaugh Canal No. 000000000019805 | Ada County | 2.1 S. 2.8 E. Meridian | 1969 | Tee Beam | 44 ft | 13,500 | Fair |
| SMA7013;CLOVERDALE over Ridenbaugh Canal No. 000000000019810 | Ada County | 2.0 S. 2.8 E. Meridian | 1969 | Tee Beam | 34 ft | 13,500 | Fair |
| Stp 7343;MAIN St. over US 20-26 Chinden Blvd No. 000000000021452 | Ada County | In Boise; Garden City Cl | 1991 | Stringer/Multi-beam or Girder | 161 ft | 13,500 | Fair |
| SMA7316;HOLMES Ave over Idaho Canal No. 000000000021436 | Bonneville County | In Idaho Falls | 1999 | Frame | 52 ft | 13,500 | Fair |
| I 15 Nbl over Barton Rd.Gs No. 000000000011235 | Bannock County | 1.7 S. Pocatello | 1964 | Stringer/Multi-beam or Girder | 110 ft | 13,250 | Fair |
| I 15 Sbl over Barton Rd.Gs No. 000000000011240 | Bannock County | 1.7 S. Pocatello | 1964 | Stringer/Multi-beam or Girder | 110 ft | 13,250 | Fair |
| I 15 Nbl over Sma 7461;E. Terry ST No. 000000000011245 | Bannock County | 0.6 S. Pocatello | 1964 | Stringer/Multi-beam or Girder | 152 ft | 13,250 | Fair |
| I 15 Sbl over Sma 7461;E. Terry ST No. 000000000011250 | Bannock County | 0.6 S. Pocatello | 1964 | Stringer/Multi-beam or Girder | 152 ft | 13,250 | Fair |
| I 15 Sbl over Stp 7341; Center St. Ic. No. 000000000011261 | Bannock County | In Pocatello | 2007 | Box Beam or Girders - Multiple | 138 ft | 13,250 | Fair |
| Sma 7363;EMERALD over Ridenbaugh Canal No. 000000000026038 | Ada County | In Boise;emerald Street | 1990 | Tee Beam | 31 ft | 13,000 | Fair |
| I 15 Nbl over Snake River;blackfoot Br No. 000000000011486 | Bingham County | 1.9 N. Blackfoot | 2003 | Stringer/Multi-beam or Girder | 831 ft | 13,000 | Fair |
| I 15 Sbl over Snake River;blackfoot Br No. 000000000011491 | Bingham County | 1.9 N. Blackfoot | 2002 | Stringer/Multi-beam or Girder | 831 ft | 13,000 | Fair |
| I 15 Nbl over Danskin Canal No. 000000000011495 | Bingham County | 2.1 N. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 90 ft | 13,000 | Fair |
| I 15 Nbl over Riverside Canal No. 000000000011520 | Bingham County | 3.3 N. Blackfoot | 1962 | Frame | 25 ft | 13,000 | Fair |
| I 15 Sbl over Riverside Canal No. 000000000011525 | Bingham County | 3.3 N. Blackfoot | 1962 | Frame | 25 ft | 13,000 | Fair |
| US 20 Ebl & Ramp over Idaho Canal No. 000000000012365 | Bonneville County | 2.5 N. Idaho Falls | 1987 | Stringer/Multi-beam or Girder | 82 ft | 13,000 | Fair |
| US 20 Wbl over Idaho Canal No. 000000000012370 | Bonneville County | 2.5 N. Idaho Falls | 1970 | Stringer/Multi-beam or Girder | 81 ft | 13,000 | Fair |
| US 95 over Bnrr;arizona St. No. 000000000018765 | Boundary County | In Bonners Ferry | 1972 | Stringer/Multi-beam or Girder | 382 ft | 13,000 | Fair |
| US 95 over Kootenai R;uprr;bnnrs Fy No. 000000000018770 | Boundary County | In Bonners Ferry | 1984 | Stringer/Multi-beam or Girder | 1,380 ft | 13,000 | Fair |
| SH 77 over Canal No. 000000000015235 | Cassia County | 6.9 N. Albion | 1985 | Frame | 23 ft | 13,000 | Fair |
| US 95 over Hatwai Creek No. 000000000018475 | Nez Perce County | 2.7 E. Lewiston | 1979 | Culvert | 25 ft | 13,000 | Fair |
| I 84 Ebl over Snake River;ontario Br No. 000000000015315 | Payette County | At Oregon-Idaho Line | 1960 | Stringer/Multi-beam or Girder | 953 ft | 13,000 | Fair |
| I 84 Wbl over Snake River;ontario Br No. 000000000015320 | Payette County | At Oregon-Idaho Line | 1960 | Stringer/Multi-beam or Girder | 953 ft | 13,000 | Fair |
| I 15 Nbl over Porter Canal No. 000000000011705 | Bonneville County | 2.0 S. Idaho Falls | 1962 | Frame | 26 ft | 12,750 | Fair |
| I 15 Sbl over Porter Canal No. 000000000011710 | Bonneville County | 2.0 S. Idaho Falls | 1962 | Frame | 26 ft | 12,750 | Fair |
| I 15 Nbl over I 15B;BROADWAY St.Ic No. 000000000011720 | Bonneville County | In Idaho Falls;broadway | 1962 | Tee Beam | 175 ft | 12,750 | Fair |
| I 15 Sbl over I 15B;BROADWAY St.Ic No. 000000000011725 | Bonneville County | In Idaho Falls;broadway | 1962 | Tee Beam | 175 ft | 12,750 | Fair |
| I 90 Ebl over Sma 7335;FIFTEENTH St.Ic No. 000000000016855 | Kootenai County | In Couer DALENE;15th St. | 1960 | Stringer/Multi-beam or Girder | 104 ft | 12,750 | Fair |
| I 90 Wbl over Sma 7335;FIFTEENTH St.Ic No. 000000000016860 | Kootenai County | In Coeur DALENE;15th St. | 1960 | Stringer/Multi-beam or Girder | 104 ft | 12,750 | Fair |
| I 90 Ebl over Stc 7325;ELM Ave.Gs No. 000000000016865 | Kootenai County | In Coeur Dalene;elm Ave. | 1960 | Stringer/Multi-beam or Girder | 141 ft | 12,750 | Fair |
| I 90 Wbl over Stc 7325;ELM Ave.Gs No. 000000000016870 | Kootenai County | In Coeur Dalene;elm Ave. | 1960 | Stringer/Multi-beam or Girder | 141 ft | 12,750 | Fair |
| I 90 Ebl over Sma 7445;SHERMAN Ave.Ic No. 000000000016885 | Kootenai County | In Coeur Dalene;sherman | 1960 | Tee Beam | 54 ft | 12,750 | Fair |
| I 90 Wbl over Sma 7445;SHERMAN Ave.Ic No. 000000000016890 | Kootenai County | In Coeur Dalene;sherman | 1960 | Tee Beam | 54 ft | 12,750 | Fair |
| Emerald Street over I 184B E-W;emerald ST Gs No. 000000000025985 | Ada County | 0.2 M.W.Boise Wcl;emerald | 1968 | Stringer/Multi-beam or Girder | 291 ft | 12,500 | Fair |
| Sma 9463;FIVE Mile over Settlers Canal No. 000000000026088 | Ada County | In Boise | 1975 | Frame | 59 ft | 12,500 | Fair |
| I 15 Nbl over Blackfoot River No. 000000000011450 | Bingham County | 2.2 S. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 155 ft | 12,500 | Fair |
| I 15 Sbl over Blackfoot River No. 000000000011455 | Bingham County | 2.2 S. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 155 ft | 12,500 | Fair |
| I 15 Nbl over W.Bridge St.Gs;uprr Op No. 000000000011465 | Bingham County | 0.3 S. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 299 ft | 12,500 | Fair |
| I 15 Sbl over W.Bridge St.Gs;uprr Op No. 000000000011470 | Bingham County | 0.3 S. Blackfoot | 1962 | Stringer/Multi-beam or Girder | 258 ft | 12,500 | Fair |
| I 15 Nbl over US 26;WEST Blackfoot Ic No. 000000000011475 | Bingham County | At Blackfoot | 1962 | Stringer/Multi-beam or Girder | 157 ft | 12,500 | Fair |
| I 15 Sbl over US 26;WEST Blackfoot Ic No. 000000000011480 | Bingham County | At Blackfoot | 1962 | Stringer/Multi-beam or Girder | 157 ft | 12,500 | Fair |
| US 95 over US 95NB Off R;sand Creek No. 000000000033700 | Bonner County | In Sandpoint | 2012 | Stringer/Multi-beam or Girder | 1,037 ft | 12,500 | Fair |
| US 95 over Bridge Street No. 000000000033710 | Bonner County | In Sandpoint | 2012 | Stringer/Multi-beam or Girder | 65 ft | 12,500 | Fair |
| US 26 over Idaho Canal No. 000000000013255 | Bonneville County | In Idaho Falls | 1978 | Slab | 53 ft | 12,500 | Fair |
| US 20 Ebl & Wbl over Salem Union Canal No. 000000000012600 | Fremont County | 1.4 Sw. ST Anthony | 1984 | Frame | 28 ft | 12,500 | Fair |
| US 20 over 2290 E No. 000000000012605 | Fremont County | 0.5 S. ST Anthony | 1984 | Frame | 24 ft | 12,500 | Fair |
| I 84 Ebl over J Coulee Canal No. 000000000016135 | Jerome County | 0.5 W. Jerome | 1966 | Tee Beam | 46 ft | 12,500 | Fair |
| I 84 Wbl over J Coulee Canal No. 000000000016140 | Jerome County | 0.5 W. Jerome | 1954 | Tee Beam | 32 ft | 12,500 | Fair |
| SH 16 over Willow Creek No. 000000000012156 | Ada County | 8.3 S. Emmett | 2011 | Stringer/Multi-beam or Girder | 108 ft | 12,000 | Fair |
| Stp 7363;AMERICANA over Boise River No. 000000000021506 | Ada County | In Boise;americana Blvd | 1994 | Stringer/Multi-beam or Girder | 313 ft | 12,000 | Fair |
| Sma 7403;FRANKLIN over Ridenbaugh Canal No. 000000000021540 | Ada County | 0.1 E. Liberty/Franklin | 1984 | Tee Beam | 26 ft | 12,000 | Fair |
| S9783;LOCUST Grove over Eight Mile Lateral No. 000000000026133 | Ada County | In Boise | 2000 | Frame | 36 ft | 12,000 | Fair |
| I 15 Nbl & Sbl over Marsh Creek No. 000000000011070 | Bannock County | 11.1 S. Arimo | 1971 | Stringer/Multi-beam or Girder | 44 ft | 12,000 | Fair |
| Sma 7923;LINDEN RD over Notus Canal No. 000000000021800 | Canyon County | In Caldwell;e.Linden RD | 1968 | Tee Beam | 23 ft | 12,000 | Fair |
| Birch Lane over Phyllis Canal No. 000000000027753 | Canyon County | 2.3 N. 2.5 E. Nampa | 2000 | Stringer/Multi-beam or Girder | 63 ft | 12,000 | Fair |
| SH 16 over Black Canyon Canal No. 000000000012160 | Gem County | 1.8 S. Emmett | 1966 | Stringer/Multi-beam or Girder | 87 ft | 12,000 | Fair |
| SH 8 over Paradise Crk;ped Walkway No. 000000000010215 | Latah County | East Side of Moscow | 1983 | Box Beam or Girders - Multiple | 35 ft | 12,000 | Fair |
| I 86 Ebl over Uprr;chubbuck Overpass No. 000000000010900 | Bannock County | 0.4 E. Chubbuck | 1963 | Stringer/Multi-beam or Girder | 170 ft | 11,750 | Fair |
| I 86 Ebl over Hiline Road Gs No. 000000000010911 | Bannock County | 0.8 E. Chubbuck | 2009 | Stringer/Multi-beam or Girder | 111 ft | 11,750 | Fair |
| US 20 Ebl over S7046;UPRR;SCNCE Ctr Ic No. 000000000012345 | Bonneville County | If; Science Center DR | 1987 | Stringer/Multi-beam or Girder | 254 ft | 11,750 | Fair |
| US 20 Wbl over S7046;UPRR;SCNCE Ctr Ic No. 000000000012350 | Bonneville County | If; Science Center DR | 1970 | Stringer/Multi-beam or Girder | 254 ft | 11,750 | Fair |
| I 84 Ebl over Bodenheimer Road Gs No. 000000000016210 | Jerome County | 11.1 E. Twin Falls | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,750 | Fair |
| I 84 Wbl over Bodenheimer Road Gs No. 000000000016215 | Jerome County | 11.1 E. Twin Falls | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,750 | Fair |
| I 84 Ebl over STC2767;VALLEY Road Ic No. 000000000016235 | Jerome County | 19.7 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,750 | Fair |
| I 84 Wbl over STC2767;VALLEY Road Ic No. 000000000016240 | Jerome County | 19.7 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,750 | Fair |
| SH 16 over Middleton Canal No. 000000000012135 | Ada County | 14 S. Emmett | 1959 | Tee Beam | 30 ft | 11,500 | Fair |
| STP7243;E Park Ctr over Boise River No. 000000000033990 | Ada County | East Boise | 2009 | Stringer/Multi-beam or Girder | 464 ft | 11,500 | Fair |
| US 26 over Trego Canal No. 000000000013220 | Bingham County | 0.8 W. Blackfoot | 1989 | Frame | 39 ft | 11,500 | Fair |
| US 2 over Pend Oreille R;oldtown B No. 000000000010000 | Bonner County | 0.1 E. Jct. 41;IN Oldtown | 1988 | Stringer/Multi-beam or Girder | 1,237 ft | 11,500 | Fair |
| US 95 over Cocolalla Creek No. 000000000018705 | Bonner County | 0.1 S. Cocolalla | 1950 | Frame | 22 ft | 11,500 | Fair |
| I 84 over Co.Rd.;horse Butte Gs No. 000000000016435 | Cassia County | 16.6 E. Burley | 1963 | Frame | 27 ft | 11,500 | Fair |
| US 20B over Henrys Fk. Snake River No. 000000000012730 | Fremont County | In ST Anthony | 1965 | Stringer/Multi-beam or Girder | 104 ft | 11,500 | Fair |
| I 84 Wbl over Main Northside Canal No. 000000000016280 | Jerome County | 13.9 W. Burley | 1966 | Stringer/Multi-beam or Girder | 202 ft | 11,500 | Fair |
| I 84 Ebl over Main Northside Canal No. 000000000016285 | Jerome County | 13.9 W. Burley | 1966 | Stringer/Multi-beam or Girder | 202 ft | 11,500 | Fair |
| I 84 Ebl over Milner Gooding Canal No. 000000000016290 | Jerome County | 12.5 W. Burley | 1966 | Stringer/Multi-beam or Girder | 110 ft | 11,500 | Fair |
| I 84 Wbl over Milner Gooding Canal No. 000000000016295 | Jerome County | 12.5 W. Burley | 1966 | Stringer/Multi-beam or Girder | 81 ft | 11,500 | Fair |
| I 84 Ebl over Crestview Rd.Gs No. 000000000016300 | Jerome County | 10.4 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,500 | Fair |
| I 84 Wbl over Crestview Rd.Gs No. 000000000016305 | Jerome County | 10.4 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,500 | Fair |
| I 84 Ebl over SH 25;KASOTA Rd.Ic No. 000000000016310 | Jerome County | 7.5 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,500 | Fair |
| I 84 Wbl over SH 25;KASOTA Rd.Ic No. 000000000016315 | Jerome County | 7.5 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,500 | Fair |
| US 95 over Paradise Creek No. 000000000018518 | Latah County | In Moscow | 2000 | Frame | 27 ft | 11,500 | Fair |
| SH 33 over Teton Creek No. 000000000013965 | Teton County | 1.1 S. Driggs | 1979 | Box Beam or Girders - Multiple | 54 ft | 11,500 | Fair |
| Stc 3770;STAR RD over Phyllis Canal No. 000000000019745 | Ada County | 1.8 S. Star | 1967 | Stringer/Multi-beam or Girder | 43 ft | 11,000 | Fair |
| Stc 3770;STAR RD over Boise River(star Bridge) No. 000000000019750 | Ada County | 0.8 S. Star | 1982 | Stringer/Multi-beam or Girder | 378 ft | 11,000 | Fair |
| Stp 7181;GOULD ST over Harrison Ave;gould ST Op No. 000000000021350 | Bannock County | In Pocatello;gould ST | 1982 | Box Beam or Girders - Multiple | 70 ft | 11,000 | Fair |
| Stp 7181;GOULD ST over Uprr;gould ST Op No. 000000000021355 | Bannock County | In Pocatello;gould ST | 1982 | Box Beam or Girders - Multiple | 265 ft | 11,000 | Fair |
| Stp 7181;GOULD ST over First Ave;gould ST Op No. 000000000021360 | Bannock County | In Pocatello | 1982 | Box Beam or Girders - Multiple | 70 ft | 11,000 | Fair |
| US 20 over Farmers Coop Canal No. 000000000012215 | Canyon County | 1 NW Caldwell Cl | 1964 | Stringer/Multi-beam or Girder | 144 ft | 11,000 | Fair |
| I 84 over Juniper Rd;gs NO.1 No. 000000000016470 | Cassia County | 3.1 E. Sublett | 1968 | Frame | 24 ft | 11,000 | Fair |
| I 84 over Juniper Rd;gs NO.2 No. 000000000016475 | Cassia County | 5.5 E. Sublett | 1968 | Frame | 24 ft | 11,000 | Fair |
| I 84 over Meadow Creek No. 000000000016480 | Cassia County | 5.7 E. Sublett | 1968 | Frame | 23 ft | 11,000 | Fair |
| I 84 Ebl over Shodde Road Gs No. 000000000016320 | Minidoka County | 5.4 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,000 | Fair |
| I 84 Wbl over Shodde Road Gs No. 000000000016325 | Minidoka County | 5.4 W. Burley | 1966 | Stringer/Multi-beam or Girder | 114 ft | 11,000 | Fair |
| I 84 Ebl over B-4 Canal No. 000000000016335 | Minidoka County | 0.3 W. Burley | 1966 | Stringer/Multi-beam or Girder | 150 ft | 11,000 | Fair |
| US 95 over US 12;US 12-95 Ic No. 000000000018470 | Nez Perce County | 6.1 E. Lewiston | 1964 | Stringer/Multi-beam or Girder | 218 ft | 11,000 | Fair |
| US 95 over Snake River;homedale Br. No. 000000000018050 | Owyhee County | At Homedale Ecl | 1969 | Stringer/Multi-beam or Girder | 687 ft | 11,000 | Fair |
| I 90 over Stc 5766;SILVERTON Ic No. 000000000017220 | Shoshone County | 2.2 W. Wallace | 1978 | Box Beam or Girders - Multiple | 147 ft | 11,000 | Fair |
| I 90 EB & WB over S.Fk.Cda R;fr.Rd. No. 000000000017225 | Shoshone County | 1.9 W. Wallace | 1978 | Stringer/Multi-beam or Girder | 569 ft | 11,000 | Fair |
| I 90 over S.Fk.Coeur Dalene River No. 000000000017235 | Shoshone County | In Wallace | 1987 | Stringer/Multi-beam or Girder | 153 ft | 11,000 | Fair |
| I 90 Ebl & Wbl over Crossroad Bd;w.Wallace I No. 000000000017240 | Shoshone County | In Wallace | 1987 | Box Beam or Girders - Single or Spread | 180 ft | 11,000 | Fair |
| I 90 over I 90B;CANYON CR No. 000000000017247 | Shoshone County | In Wallace | 1991 | Box Beam or Girders - Single or Spread | 4,478 ft | 11,000 | Fair |
| US 30 over US 30/US 93 Interchange No. 000000000013608 | Twin Falls County | US 30/US 93 Junction | 1997 | Box Beam or Girders - Single or Spread | 152 ft | 11,000 | Fair |
| US 30 over S Coulee Canal No. 000000000013621 | Twin Falls County | 0.7 E. Filer | 1996 | Frame | 23 ft | 11,000 | Fair |
| I 84 Wbl over US 20;N.MOUNTAIN Home Ic No. 000000000015865 | Elmore County | 0.3 N. Mountain Home | 1971 | Stringer/Multi-beam or Girder | 93 ft | 10,750 | Fair |
| I 84 Ebl over US 20;N.MOUNTAIN Home Ic No. 000000000015870 | Elmore County | 0.3 N. Mountain Home | 1971 | Stringer/Multi-beam or Girder | 93 ft | 10,750 | Fair |
| US 30 over I 184B Wb-Eb;fairview Rp No. 000000000013530 | Ada County | In Boise;fairview Ramp | 1968 | Box Beam or Girders - Single or Spread | 235 ft | 10,500 | Fair |
| NHS9493;W Park Ctr over Boise River No. 000000000025898 | Ada County | Boise;west Park Ctr Blvd | 2001 | Stringer/Multi-beam or Girder | 601 ft | 10,500 | Fair |
| SMA9243;VICTORY RD over Ridenbaugh Canal No. 000000000026150 | Ada County | 2.5 S. 1.5 E. Meridian | 1964 | Tee Beam | 47 ft | 10,500 | Fair |
| Sma 8213;MIDDLETON over Elija Drain No. 000000000026965 | Canyon County | In Nampa | 1970 | Tee Beam | 60 ft | 10,500 | Fair |
| US 20 Wbl & Ebl over S.Fk.Fall River Canal No. 000000000012645 | Fremont County | 1.8 S. Chester | 1973 | Stringer/Multi-beam or Girder | 76 ft | 10,500 | Fair |
Counties with the most
| Bingham County | 210 | 80% |
| Canyon County | 199 | 68% |
| Shoshone County | 174 | 67% |
| Ada County | 165 | 55% |
| Bonneville County | 141 | 66% |
| Idaho County | 114 | 53% |
| Twin Falls County | 107 | 85% |
| Kootenai County | 101 | 64% |
| Jefferson County | 97 | 78% |
| Cassia County | 93 | 79% |