Slab bridges in Idaho
A solid, flat concrete slab that acts as both the supporting structure and the roadway surface. Common for short crossings. Idaho has 215 of them, 4.6% of its bridges. Nationally this type accounts for 13.2% of all bridges.Compare states for this type.
- Slab bridges
- 215
- Poor condition
- 4%
- 8 bridges
- Average age
- 38.1 yrs
- Combined length
- 2 mi
Busiest slab bridges in Idaho
Top 200 by daily traffic| Bridge | County | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|---|
| 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 |
| SMA7553;FEDERAL Wy over New York Canal No. 000000000021670 | Ada County | 1.1 SE Boise Scl | 1989 | Slab | 146 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 |
| US 95 over Wildlife Crossing No. 000000000033565 | Kootenai County | 3.5 S. Athol | 2012 | Slab | 25 ft | 20,000 | Good |
| 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 |
| SH 44 over Dry Creek No. 000000000014297 | Ada County | Eagle Bypass | 1996 | Slab | 80 ft | 13,500 | Good |
| US 26 over Idaho Canal No. 000000000013255 | Bonneville County | In Idaho Falls | 1978 | Slab | 53 ft | 12,500 | Fair |
| US 20B over Egin Canal No. 000000000012735 | Fremont County | In ST Anthony | 1975 | Slab | 42 ft | 11,500 | Good |
| I 90 Spur over Canyon Creek No. 000000000017255 | Shoshone County | Inside Wallace Ecl | 1940 | Slab | 37 ft | 10,500 | Fair |
| I 90 Ebl & Wbl over I 90 EB Off;w.Mullan Ic No. 000000000017290 | Shoshone County | Mullan Scl | 1973 | Slab | 135 ft | 9,600 | Fair |
| I 84 Ebl over Frontage Rd;gs NO.3 No. 000000000016035 | Gooding County | 5.6 E. Bliss | 1977 | Slab | 136 ft | 9,250 | Fair |
| I 84 Wbl over Frontage Rd;gs NO.3 No. 000000000016040 | Gooding County | 5.6 E. Bliss | 1977 | Slab | 132 ft | 9,250 | Fair |
| SH 55 over Power Canal No. 000000000014766 | Boise County | Horseshoe Bend | 1994 | Slab | 100 ft | 8,800 | Good |
| Olympus DR over Future Ped Underpass No. 000000000034555 | Bannock County | Pocatello | 2018 | Slab | 20 ft | 8,400 | Good |
| SH 46 over Little Wood River No. 000000000014345 | Gooding County | In Gooding | 1924 | Slab | 26 ft | 8,100 | Fair |
| Stadium DR over Paradise Creek No. 000000000033200 | Latah County | In Moscow @ U of I | 2010 | Slab | 30 ft | 7,000 | Fair |
| Stadium DR over Paradise Creek No. 000000000033205 | Latah County | In Moscow @ U of I | 2010 | Slab | 27 ft | 7,000 | Good |
| US 26 over Danskin Canal No. 000000000013216 | Bingham County | 2.7 W. Blackfoot | 2019 | Slab | 66 ft | 6,300 | Good |
| SH 25 over B-4 Canal No. 000000000013071 | Minidoka County | At Rupert Swcl | 2001 | Slab | 51 ft | 6,300 | Fair |
| Front Avenue over Cda Parking Garage No. 000000000037000 | Kootenai County | In Coeur Dalene | 2014 | Slab | 871 ft | 6,049 | Fair |
| STC2754;S. Lincoln over N Canal No. 000000000019485 | Jerome County | 3.5 S. Jerome | 1983 | Slab | 24 ft | 5,900 | Fair |
| STC2754;S. Lincoln over N Canal No. 000000000019490 | Jerome County | 3.2 S. Jerome | 1983 | Slab | 24 ft | 5,900 | Good |
| STC2754;S. Lincoln over N Canal No. 000000000019495 | Jerome County | 3.1 S. Jerome | 1983 | Slab | 24 ft | 5,900 | Good |
| SH 33 over Teton River Overflow No. 000000000013920 | Madison County | 1.5 W. Teton | 1976 | Slab | 51 ft | 5,400 | Good |
| 200 South Road over L Canal No. 000000000024686 | Jerome County | 2.0 S. 3.5 E. Jerome | 2004 | Slab | 26 ft | 5,300 | Fair |
| SH 39 over Peoples Canal No. 000000000014206 | Bingham County | 8.0 W. Blackfoot | 2018 | Slab | 41 ft | 3,600 | Good |
| US 95 over Hangman Creek No. 000000000018575 | Benewah County | 1.1 S. Tensed | 1975 | Slab | 90 ft | 3,500 | Fair |
| SH 52 over Drain Ditch No. 000000000014630 | Gem County | 5.6 W. Emmett | 1988 | Slab | 33 ft | 3,500 | Fair |
| Stc 7073;S.COLE RD over New York Canal No. 000000000025915 | Ada County | On S.Cole RD;0.3N.VALLEJO | 1989 | Slab | 146 ft | 3,400 | Good |
| SH 33 over Owsley Canal No. 000000000016631 | Jefferson County | In Mud Lake | 1995 | Slab | 38 ft | 3,300 | Fair |
| US 26 over Peoples Canal No. 000000000013206 | Bingham County | 5.4 W. Blackfoot | 2018 | Slab | 52 ft | 3,100 | Good |
| Stc 7863;S.5th Ave over Indian Creek No. 000000000027595 | Canyon County | In Caldwell;s. 5th Ave. | 1935 | Slab | 37 ft | 3,100 | Fair |
| US 26 over Aberdeen Canal No. 000000000013211 | Bingham County | 4.7 W. Blackfoot | 2020 | Slab | 84 ft | 3,000 | Good |
| STC2739;3800 E. RD over Lateral 10 No. 000000000019455 | Twin Falls County | 1.4 N. 0.3 W. Hansen | 1920 | Slab | 24 ft | 2,900 | Fair |
| I 90B Loop over South Fork Cda River No. 000000000017330 | Shoshone County | In Wallace | 1987 | Slab | 115 ft | 2,800 | Fair |
| STC9573:E Mallard over Loggers Creek No. 000000000034335 | Ada County | In Boise; E.Mallard Drive | 2023 | Slab | 24 ft | 2,700 | Good |
| SH 31 over North Pine Creek No. 000000000013846 | Bonneville County | 10.5 N. Swan Valley | 2019 | Slab | 54 ft | 2,700 | Good |
| US 95 over Slate Creek No. 000000000018345 | Idaho County | 9.4 S. Whitebird | 1969 | Slab | 130 ft | 2,200 | Fair |
| US 93 over Milner Gooding Canal No. 000000000013150 | Lincoln County | 1.6 E. Shoshone | 1987 | Slab | 76 ft | 2,100 | Fair |
| US 89 over Ovid Creek No. 000000000016681 | Bear Lake County | 3.69 N. Paris | 2019 | Slab | 36 ft | 2,000 | Good |
| US 89 over Ovid Creek No. 000000000016686 | Bear Lake County | 3.77 N. Paris | 2019 | Slab | 66 ft | 2,000 | Good |
| SH 21 over Mores Cr.;at Minniha CR No. 000000000012840 | Boise County | 8.9 S. Idaho City | 1990 | Slab | 81 ft | 2,000 | Fair |
| Sma 7733;KIMBALL a over Indian Creek No. 000000000027610 | Canyon County | In Caldwell;s.Kimball Ave | 1933 | Slab | 39 ft | 2,000 | Poor |
| US 20 over Corral Creek No. 000000000015005 | Camas County | 6.8 W. Fairfield | 1969 | Slab | 33 ft | 1,900 | Fair |
| US 20 over Three Mile Creek No. 000000000015015 | Camas County | 4.8 W. Fairfield | 1969 | Slab | 31 ft | 1,900 | Fair |
| STC2757;NORTH Road over S Canal No. 000000000019506 | Jerome County | 2.5 N. Jerome | 1999 | Slab | 43 ft | 1,900 | Fair |
| Stc 7832;H Street over C Canal No. 000000000025152 | Minidoka County | In Rupert; H Street | 1965 | Slab | 63 ft | 1,900 | Fair |
| STC7817;CONCORD ST over Willow Creek No. 000000000027295 | Canyon County | Middleton Ncl | 1987 | Slab | 26 ft | 1,800 | Good |
| SMA7706; E. 4th N. over Rexburg Canal No. 000000000033008 | Madison County | In Rexburg | 2009 | Slab | 27 ft | 1,700 | Fair |
| SH 28 over Lemhi River No. 000000000013436 | Lemhi County | 10 S. Salmon | 2018 | Slab | 67 ft | 1,600 | Good |
| SH 46 over N. Gooding Lateral 1465 No. 000000000014360 | Gooding County | 3.5 N. Gooding | 1986 | Slab | 20 ft | 1,500 | Fair |
| STC6700;PIONEER RD over Sidehill Canal No. 000000000031030 | Bonneville County | 2.7 S. 2.2 W. Idaho Falls | 1981 | Slab | 31 ft | 1,400 | Good |
| E 100 S over G Canal No. 000000000024038 | Cassia County | 1.4 S 2.3 E Burley | 1975 | Slab | 23 ft | 1,400 | Fair |
| US 93 over Challis Creek No. 000000000017846 | Custer County | 4.8 N. Challis | 1991 | Slab | 36 ft | 1,400 | Good |
| 7th Avenue West over T.F.Northside Main Cnl No. 000000000024455 | Gooding County | 0.6 S. Gooding | 1930 | Slab | 44 ft | 1,300 | Fair |
| 3500 East Road over High Line Canal No. 000000000025630 | Twin Falls County | 7.5 S. Kimberly | 1968 | Slab | 74 ft | 1,300 | Fair |
| Brentwood Drive over East Lateral Canal No. 000000000031398 | Bonneville County | In Idaho Falls | 1975 | Slab | 24 ft | 1,000 | Fair |
| Cascade Road over Enterprise Canal No. 000000000028080 | Gem County | 0.6 S. 2.7;W. Emmett | 1950 | Slab | 26 ft | 950 | Poor |
| SH 28 over Lemhi River No. 000000000013386 | Lemhi County | 12 N. Leadore | 2018 | Slab | 85 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013391 | Lemhi County | 13.5 N. Leadore | 2018 | Slab | 66 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013396 | Lemhi County | 16 N. Leadore | 2018 | Slab | 85 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013401 | Lemhi County | 16 N. Leadore. | 2019 | Slab | 82 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013406 | Lemhi County | 18.5 N. Leadore. | 2019 | Slab | 82 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013411 | Lemhi County | 19.6 N. Leadore. | 2019 | Slab | 81 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013416 | Lemhi County | 1.4 S. Tendoy | 2019 | Slab | 83 ft | 860 | Good |
| SH 28 over Lemhi River No. 000000000013421 | Lemhi County | 0.6 N. Tendoy | 2018 | Slab | 84 ft | 860 | Good |
| Lemhi Road over Aberdeen Springfield Cnl No. 000000000022431 | Bingham County | 1.0 N. 0.4 E. Moreland | 1994 | Slab | 81 ft | 800 | Fair |
| SH 34 over Tincup Creek No. 000000000014070 | Caribou County | 17 E. Wayan | 1962 | Slab | 30 ft | 770 | Fair |
| Stc 4709;WHITEBIRD over Whitebird Creek No. 000000000020220 | Idaho County | At Whitebird Ecl | 1973 | Slab | 63 ft | 710 | Good |
| STC3928;S Eagle RD over Kuna Canal No. 000000000026265 | Ada County | 0.1 S. 3.3 E. Kuna | 1988 | Slab | 41 ft | 570 | Fair |
| STC1842;RISING Rvr over Aberdeen Springfield Cnl No. 000000000022276 | Bingham County | 5.0 N. 1.0 E. Blackfoot | 1993 | Slab | 75 ft | 560 | Fair |
| S. 12th Avenue over Indian Creek No. 000000000027665 | Canyon County | In CALDWELL;S.12th Ave | 1935 | Slab | 40 ft | 560 | Fair |
| 300 East Road over L Canal No. 000000000024698 | Jerome County | 1.5 S. 3.0 E. Jerome | 2003 | Slab | 24 ft | 540 | Good |
| E Milo Road over Harrison Canal No. 000000000031000 | Bonneville County | 4.5 W. Ririe | 1949 | Slab | 32 ft | 520 | Fair |
| Stc 1775;TURNER RD over Pacificorp Penstock No. 000000000019176 | Caribou County | 0.1 W Grace | 2016 | Slab | 77 ft | 520 | Good |
| SH 47 over Robison Creek No. 000000000014420 | Fremont County | 8.5 E. Ashton | 1984 | Slab | 87 ft | 510 | Good |
| SH 47 over Warm River No. 000000000014425 | Fremont County | At Warm River | 1984 | Slab | 98 ft | 510 | Fair |
| STC8843;NE 10th Av over Lower Payette Canal No. 000000000028365 | Payette County | 1.1 S. 1.4 E. Payette | 1960 | Slab | 25 ft | 510 | Fair |
| 200 South Road over L Canal No. 000000000024751 | Jerome County | 2.0 S. 5.7 E. Jerome | 2005 | Slab | 27 ft | 500 | Fair |
| Adams Boulevard over Adams Drainage No. 000000000200677 | Butte County | 9.3S. 13.5 E. Arco | 1993 | Slab | 39 ft | 491 | Poor |
| Valley Road over C Canal No. 000000000024761 | Jerome County | 2.0 S. 1.6 W. Hazelton | 1992 | Slab | 34 ft | 490 | Good |
| S4718; Old Elk Cty over Elk Creek No. 000000000029340 | Idaho County | Elk Creek;w.Elk City Br | 1982 | Slab | 22 ft | 480 | Fair |
| 200 North Road over S Canal No. 000000000024829 | Jerome County | 1.5 W. 2.0 N. Jerome | 2001 | Slab | 23 ft | 480 | Fair |
| N 2700 E over Main Canal No. 000000000025523 | Twin Falls County | 3.0 E 1.0 N Hollister | 1965 | Slab | 25 ft | 460 | Fair |
| STC6868;TRAIL Crk over N. Fork Big Lost River No. 000000000033375 | Custer County | 17.3 N.E. Sun Valley | 1970 | Slab | 32 ft | 440 | Fair |
| STC6868;TRAIL Crk over N. Fork Big Lost River No. 000000000033380 | Custer County | 18.9 N.E. Sun Valley | 1970 | Slab | 32 ft | 440 | Fair |
| SH 36 over Mink Creek No. 000000000014086 | Franklin County | 8.6 E. SH 34/SH 36 JCT | 2015 | Slab | 52 ft | 440 | Good |
| 1700 East RD over Low Line Canal No. 000000000025541 | Twin Falls County | 2.3 S. 2.5 E. Buhl | 2003 | Slab | 57 ft | 420 | Good |
| N 1700 E over Lateral 17A No. 000000000025543 | Twin Falls County | 2.4 E. 3.3 S. Buhl | 1969 | Slab | 24 ft | 420 | Fair |
| STC2768;5250 E. RD over Twin Falls Main Canal No. 000000000025361 | Twin Falls County | 2.1 N. 7.5 E. Murtaugh | 1992 | Slab | 250 ft | 360 | Fair |
| Salmon River Road over Pine Creek No. 041307000022725 | Lemhi County | Pine Creek | 2012 | Slab | 40 ft | 350 | Poor |
| 200 East Road over J Canal No. 000000000024693 | Jerome County | 2.5 N 2.0 E Jerome | 2007 | Slab | 24 ft | 310 | Good |
| STC2722;3600 N. RD over Lateral 5 No. 000000000025350 | Twin Falls County | 5.4 S. 5.4 W. Buhl | 1988 | Slab | 34 ft | 310 | Fair |
| 2300 East Road over Little Wood River No. 000000000024470 | Gooding County | 0.2 S. 4.0 E. Gooding | 1930 | Slab | 32 ft | 300 | Fair |
| Stc 1834; W 200 S over Aberdeen Springfield Cnl No. 000000000019236 | Bingham County | 3.6 N. 1.6 E. Pingree | 1992 | Slab | 93 ft | 270 | Fair |
| 1420 North Road over East Main Canal No. 000000000025101 | Lincoln County | 6.5 N 2.5 W Richfield | 2013 | Slab | 52 ft | 230 | Good |
| Harmony Heights RD over Orofino Creek No. 000000000029036 | Clearwater County | 0.4 S. 3.7 E. Orofino | 2020 | Slab | 70 ft | 220 | Good |
| STC4790;THORN Crk over Thorn Creek No. 000000000020306 | Latah County | 3.4 N. 3.7 W. Genesse | 2013 | Slab | 26 ft | 220 | Good |
| 750 East Road over Dietrich Canal No. 000000000024975 | Lincoln County | 0.7 N. 0.5 E. Dietrich | 1971 | Slab | 26 ft | 220 | Fair |
| 2600 East RD over Low Line Canal No. 000000000025430 | Twin Falls County | 2.3 S. 3.5 W. Twin Falls | 1968 | Slab | 90 ft | 220 | Fair |
| Stc 4792;CHESTNUT over Cow Creek No. 000000000020310 | Latah County | In Genesee;chestnut St. | 1977 | Slab | 40 ft | 210 | Good |
| Sandy Road over North Canal No. 000000000022670 | Bingham County | 2.5 S. 1.2 W. Blackfoot | 1955 | Slab | 38 ft | 200 | Fair |
| 500 West over East Canal No. 000000000023970 | Cassia County | 1.9 S. 0.8 W. Oakley | 1952 | Slab | 27 ft | 200 | Fair |
| No Data Entered over Boulder Creek No. 041302000001076 | Lemhi County | No Data Entered | 1966 | Slab | 31 ft | 200 | Poor |
| 200 West Road over B-2 Canal No. 000000000025216 | Minidoka County | 1.5 N. 2.0 W. Rupert | 2020 | Slab | 22 ft | 200 | Good |
| Baseline RD;1200 N over Great Western Canal No. 000000000022636 | Bingham County | 1.0 S 3.2 W Shelley | 2001 | Slab | 22 ft | 190 | Fair |
| IRR BIA RTE 60 over Spring Creek No. 00000000000P407 | Bingham County | 7KM W.Jct HWY 191 & Rt 60 | 1975 | Slab | 90 ft | 150 | Good |
| Stc 1759;OLD Hw 30 over Drain Ditch No. 000000000023310 | Caribou County | 0.7 W. Bancroft | 1977 | Slab | 31 ft | 150 | Fair |
| Power Line Road over Mora Canal No. 000000000026800 | Canyon County | 9.5 S. 0.5 E. Nampa | 1987 | Slab | 51 ft | 140 | Fair |
| 3200 East RD over High Line Canal No. 000000000025550 | Twin Falls County | 6.4 S. 2.5 E. Twin Falls | 1969 | Slab | 82 ft | 140 | Fair |
| Long Gulch Road over Rattlesnake Creek No. 000000000027847 | Elmore County | 4.9 N 5.2 W Prairie | 2018 | Slab | 28 ft | 130 | Good |
| Maiers Lane over Lemhi River No. 000000000032685 | Lemhi County | 3.7 S. 2.9 E. Lemhi | 1977 | Slab | 30 ft | 120 | Good |
| 1350 East Road over Stratton Canal No. 000000000025071 | Lincoln County | 2.0 N 1.0 E Richfield | 2013 | Slab | 57 ft | 112 | Good |
| IRR BIA RTE 59 over Blackfoot River No. 00000000000P411 | Bingham County | 13 KM SW of Blackfoot | 1990 | Slab | 80 ft | 110 | Good |
| W. Camas Creek RD over W. Camas Creek No. 000000000036160 | Clark County | 7.2 Nw. Kilgore | 1970 | Slab | 27 ft | 110 | Good |
| N 3000 E over Teton Island Canal No. 000000000032810 | Madison County | 4.4 N. 3.6 E. Rexburg | 1977 | Slab | 45 ft | 110 | Good |
| S. Raymond Road over Portneuf Marsh Vally Cnl No. 000000000021981 | Bannock County | 3.7 N. 0.3 E. Arimo | 2019 | Slab | 28 ft | 100 | Good |
| N Kraft Road over Portneuf River No. 000000000021990 | Bannock County | 1.0 N. 1.9 W. Pocatello | 1945 | Slab | 81 ft | 100 | Fair |
| IRR BIA RTE 15 over Blackfoot River No. 00000000000P416 | Bingham County | 19 KM N.E. of Blackfoot | 1978 | Slab | 85 ft | 100 | Fair |
| Beaver-Loon Road over Jordan Creek No. 040603000001167 | Custer County | No Data Entered | 2001 | Slab | 29 ft | 100 | Fair |
| Fdr over Fourth of July Creek No. 041403000001055 | Custer County | 5 Miles UP 4th of July RD | 1992 | Slab | 24 ft | 100 | Good |
| 100 West Road over S Canal No. 000000000024631 | Jerome County | 2.3 N. 1.0 W. Jerome | 2008 | Slab | 24 ft | 100 | Fair |
| Eden Road (1600 E) over T.F.Northside Main Canal No. 000000000024641 | Jerome County | 2.5 N. 0.5 W. Eden | 1991 | Slab | 62 ft | 100 | Fair |
| Park Access Road over Rexburg Canal No. 000000000033003 | Madison County | In Rexburg | 2023 | Slab | 26 ft | 100 | Good |
| 300 West Road over B-4 Canal No. 000000000025280 | Minidoka County | 1.1 S. 3.0 E. Paul | 1968 | Slab | 27 ft | 100 | Good |
| Round Valley RD over Round Valley Creek No. 000000000028566 | Valley County | 2.3 N. 2.7 E.Smiths Ferry | 1992 | Slab | 42 ft | 100 | Good |
| Morgan Crk RD over Morgan Creek;ne.Challis No. 000000000031735 | Custer County | 9.3 N. 1.5 E. Challis | 1977 | Slab | 34 ft | 90 | Good |
| IRR BIA RTE 91 over Blackfoot River No. 00000000000P415 | Bingham County | 5 KM SW of Blackfoot | 2015 | Slab | 106 ft | 85 | Good |
| Mill Road over S. Fk. Palouse River No. 000000000029717 | Latah County | 0.7 N. 2.8 E. Moscow | 1996 | Slab | 25 ft | 80 | Good |
| Cassia Road over Farmers Coop Canal No. 000000000028390 | Payette County | 3.5S 3.4E New Plymouth | 1959 | Slab | 27 ft | 80 | Fair |
| 3600 East Road over High Line Canal No. 000000000025696 | Twin Falls County | 7.1 S. 1.0 E. Kimberly | 1993 | Slab | 75 ft | 80 | Fair |
| Maple Street over Long Hollow Creek No. 000000000029770 | Lewis County | In Nezperce;maple & 9th. | 1920 | Slab | 32 ft | 70 | Fair |
| Fdr over Valley Creek No. 041403000001087 | Custer County | North MP120.7 ST HWY 21 | 1986 | Slab | 40 ft | 60 | Good |
| 100 South Road over L Canal No. 000000000024645 | Jerome County | 1.2 S. 7.0 E. Jerome | 1965 | Slab | 24 ft | 60 | Fair |
| 100 East Road over U Canal No. 000000000024746 | Jerome County | 3.1 N. 1.0 E. Jerome | 1990 | Slab | 64 ft | 60 | Fair |
| 1300 East RD over Low Line Canal No. 000000000025475 | Twin Falls County | 3.1 S. 1.6 W. Buhl | 1986 | Slab | 38 ft | 60 | Fair |
| Diamond Creed Road over Blackfoot River No. 000000000023305 | Caribou County | 10.4 S. 2.5 E. Wayan | 1971 | Slab | 43 ft | 55 | Fair |
| Arkansas Road over Portneuf Marsh Val.Cnl No. 000000000022030 | Bannock County | 1.9 S. 0.7 E. Arimo | 1957 | Slab | 28 ft | 50 | Fair |
| Pole Creek Road over Salmon River No. 000000000023760 | Blaine County | 0.1S 0.2E Sawtooth City | 1974 | Slab | 24 ft | 50 | Good |
| Fdr over Frenchman Creek No. 041400000036051 | Blaine County | Frenchman Creek | 2024 | Slab | 28 ft | 50 | Good |
| Fdr over Copper Creek No. 041403000001030 | Blaine County | 21 Miles East of Gimlet | 2002 | Slab | 28 ft | 50 | Good |
| Fdr over North Fork of Wood River No. 041403000001034 | Blaine County | 4 Miles North Snra Hqds | 1955 | Slab | 24 ft | 50 | Poor |
| Pr over North Fork Wood River No. 041403000001036 | Blaine County | 2 Miles North Snra Hqds | 1950 | Slab | 34 ft | 50 | Poor |
| Fdr over Salmon River No. 041403000001047 | Blaine County | 1 Mile South Smiley Creek | 1957 | Slab | 24 ft | 50 | Fair |
| Fdr over Warm Springs Creek No. 041403000001064 | Blaine County | 6 Miles West of Ketchum | 1954 | Slab | 30 ft | 50 | Fair |
| Fdr over Warm Springs Creek No. 041403000001065 | Blaine County | 10 Miles West of Ketchum | 1953 | Slab | 30 ft | 50 | Fair |
| Fdr over Warm Springs Creek No. 041403000001088 | Blaine County | 14 Miles West Ketchum | 1952 | Slab | 30 ft | 50 | Fair |
| Fdr over Alturas Lake Creek No. 041403000001090 | Blaine County | 2 Miles North Alturas L. | 1955 | Slab | 30 ft | 50 | Fair |
| No Data Entered over Upper West Branch No. 010408000000078 | Bonner County | Upper West Branch | 1989 | Slab | 29 ft | 50 | Fair |
| Fdr over Little Smoky Creek No. 041405000001015 | Camas County | 18 Miles North Fairfield | 1959 | Slab | 34 ft | 50 | Good |
| Fdr over Paridise Creek No. 041405000001080 | Camas County | Big Smoky JCT | 1977 | Slab | 32 ft | 50 | Fair |
| Fdr over Big Smoky Creek No. 041405000001081 | Camas County | Big Smoky JCT | 1982 | Slab | 116 ft | 50 | Fair |
| Fdr over Skeleton Creek No. 041405000001084 | Camas County | Elmore-Camas County Line | 1955 | Slab | 22 ft | 50 | Fair |
| No Data Entered over No Data Entered No. 041405000011518 | Camas County | No Data Entered | 2001 | Slab | 28 ft | 50 | Good |
| Road over Cottonwood Creek No. 041551000003011 | Clark County | No Data Entered | 2001 | Slab | 24 ft | 50 | Good |
| Fdr over Germania Ceeek No. 041403000001025 | Custer County | 25 UP East Fork Salmon R. | 1956 | Slab | 30 ft | 50 | Fair |
| Fdr over Iron Creek No. 041404000018796 | Custer County | 1.2 Miles UP from HWY 21 | 2012 | Slab | 36 ft | 50 | Good |
| Dry Buck-Burnt Ck. over East Fork Fall Creek No. 040201000012660 | Elmore County | 1.8 MI W. of Red Mountain | 2010 | Slab | 42 ft | 50 | Good |
| 20082 over Warm River No. 041503000001033 | Fremont County | No Data Entered | 1984 | Slab | 151 ft | 50 | Fair |
| Forest Road 222C over Fourth of July Creek No. 011705000003010 | Idaho County | No Data Entered | 2004 | Slab | 28 ft | 50 | Fair |
| Grouse Cr-Marshal over Grouse Creek No. 041204000003101 | Idaho County | On the Grouse Creek Road | 2004 | Slab | 29 ft | 50 | Good |
| Iron Creek Road over Salmon River;iron Ck Br No. 000000000032665 | Lemhi County | 20 S. Salmon | 1965 | Slab | 230 ft | 50 | Fair |
| Fs Route No. 208 over Flat Creek No. 010401000000240 | Shoshone County | 17 Mi. from Babins Jct. | 1974 | Slab | 42 ft | 50 | Fair |
| No Data Entered over E.F. Big Creek No. 010404000000129 | Shoshone County | East Fork Big Creek | 1994 | Slab | 25 ft | 50 | Good |
| Road over No Fork Packsaddle Creek No. 041500000014550 | Teton County | No Data Entered | 2009 | Slab | 26 ft | 50 | Good |
| Stanley-Warm Lake over Fir Creek No. 040205000012670 | Valley County | 2 MI E. of Bruce Meadows | 2009 | Slab | 46 ft | 50 | Good |
| Stanley-Warm Lake over No Data Entered No. 040205000036679 | Valley County | 2 Mi. E. of Bruce Meadows | 2023 | Slab | 34 ft | 50 | Good |
| Silver Creek Plung over Silver Creek No. 040206000003070 | Valley County | Silver Creek Plunge Cg | 2005 | Slab | 46 ft | 50 | Good |
| Middle Fk Payette over Rattlesnake Creek No. 040206000012671 | Valley County | .2 MI N Rattlesnake Ck Cg | 2009 | Slab | 46 ft | 50 | Good |
| Silver Ck. Smt. RD over Silver Creek No. 040206000013188 | Valley County | Eggers Creek Cabin | 2010 | Slab | 40 ft | 50 | Good |
| Silver Ck. Smt. RD over Silver Creek No. 040206000013189 | Valley County | Silver Ck Summit T.H. | 2010 | Slab | 40 ft | 50 | Good |
| Fs Route N0. 1312 over Moores Creek No. 010408000000006 | Bonner County | Moores Creek | 1980 | Slab | 33 ft | 40 | Good |
| No Data Entered over Gabe Creek No. 010304000003031 | Idaho County | No Data Entered | 2004 | Slab | 26 ft | 40 | Good |
| No Data Entered over No Data Entered No. 010506000016126 | Idaho County | Wendover Camp Ground | 2011 | Slab | 37 ft | 40 | Good |
| Forest Road 1875 over Rainy Day Creek No. 011708000000018 | Idaho County | No Data Entered | 1972 | Slab | 41 ft | 40 | Good |
| N 5050 E over Great Feeder Canal Head No. 000000000032353 | Jefferson County | 0.7 S. 0.4 W. Heise | 2016 | Slab | 106 ft | 40 | Good |
| Fs Route No. 1341 over No Data Entered No. 010403000011105 | Kootenai County | Bottom Creek | 2007 | Slab | 25 ft | 40 | Good |
| Fs Route No. 208 over Cinnamon Creek No. 010401000000233 | Shoshone County | 23.6 MI from Babins Jct. | 1974 | Slab | 40 ft | 40 | Fair |
| Fs Route No. 208 over Brett Creek No. 010401000000243 | Shoshone County | 21.1 Mi. from Bavins Jct. | 1974 | Slab | 26 ft | 40 | Fair |
| Fs Route No. 208 over Downey Creek No. 010401000000248 | Shoshone County | 13.4 MI from Babins Jct. | 1974 | Slab | 40 ft | 40 | Good |
| Fs Route No. 208 over Yellow Dog CR No. 010401000000249 | Shoshone County | 14 MI from Babins Jct. | 1974 | Slab | 52 ft | 40 | Good |
| S 1050 E RD over J Canal No. 000000000023933 | Cassia County | 2.0 E 0.75 S Declo | 2000 | Slab | 43 ft | 30 | Good |
| S 350 E RD over J Canal No. 000000000024153 | Cassia County | 7.0 S 3.5 E Burley | 2000 | Slab | 48 ft | 30 | Good |
| James Creek Road over Elk Creek No. 000000000027877 | Elmore County | 5 N. Rocky Bar | 2007 | Slab | 32 ft | 30 | Good |
| 1375 South Road over Canal No. 000000000024385 | Gooding County | 4.3 N. 3.7 E. Gooding | 1930 | Slab | 25 ft | 30 | Fair |
| S4795;GNSEE-JLETTA over Little Potlatch Creek No. 000000000020315 | Latah County | 3.9 N. 6.2 E. Genesee | 1977 | Slab | 40 ft | 30 | Good |
| 4300 East Road over Twin Falls Main Canal No. 000000000025341 | Twin Falls County | 2.9 N. 2.4 W. Murtaugh | 1997 | Slab | 125 ft | 30 | Fair |
| Clear Creek Road over Cache Creek No. 000000000033805 | Valley County | 24 N. Lowman | 1953 | Slab | 21 ft | 30 | Fair |
| Clear Creek Road over Sack Creek No. 000000000033808 | Valley County | 24 N. Lowman | 2010 | Slab | 24 ft | 30 | Good |
| Deadwood Road over Deadwood River No. 000000000033840 | Valley County | 3 N. Deadwood Resv | 1959 | Slab | 102 ft | 30 | Fair |
| Boehner Road over Deer Flat Canal No. 000000000027231 | Canyon County | 2.5 S. 1.5 E. Wilder | 1993 | Slab | 52 ft | 25 | Fair |
| 1920: Darling Cree over Challis Creek No. 000000000L59858 | Custer County | 0.3 MI N of Challis CR RD | 1981 | Slab | 44 ft | 25 | Good |
| 3043: Warm Spring over Big Timber Creek No. 000000000L59856 | Lemhi County | 5 MI W of ID28 | 1979 | Slab | 24 ft | 25 | Good |
| Moccasin-Napias RD over Napias Creek No. 041301000001052 | Lemhi County | No Data Entered | 1953 | Slab | 26 ft | 25 | Poor |
| Road over Tie Canyon Creek No. 041504000003004 | Bonneville County | No Data Entered | 1999 | Slab | 28 ft | 24 | Good |
| 14th Ave over Notus Canal No. 000000000027668 | Canyon County | Caldwell | 1980 | Slab | 27 ft | 20 | Good |
| Nfd 131 RD over S.Fk.Boise R.(cow Cr.Br) No. 000000000027855 | Elmore County | 9.5 S. 1.0 E. Prairie | 1959 | Slab | 154 ft | 20 | Fair |
| 150 West Road over N. Gooding Canal No. 000000000025040 | Lincoln County | 7.2 N. 1.4 W. Shoshone | 1962 | Slab | 25 ft | 20 | Fair |
| 1500 East Road over High Line Canal No. 000000000025485 | Twin Falls County | 7.2 S. 0.5 E. Buhl | 1930 | Slab | 45 ft | 20 | Fair |
Counties with the most
| Lemhi County | 19 |
| Bingham County | 14 |
| Jerome County | 14 |
| Twin Falls County | 13 |
| Valley County | 13 |
| Bonneville County | 12 |
| Idaho County | 10 |
| Custer County | 10 |
| Blaine County | 10 |
| Shoshone County | 9 |
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