| Lux LN over Walker Rvr | Lyon | 1900 | Fair | 61 |
| Tungsten RD over Pit Taylor Canal | Pershing | 1900 | Fair | 50 |
| Painted Rock RD over Truckee Rvr | Washoe | 1902 | Fair | 134 |
| Bridge Street over Humboldt River | Humboldt | 1910 | Fair | 600 |
| Sr430 S Virginia over Dry Creek | Washoe | 1920 | Fair | 19,600 |
| Arlington Av over Truckee Rvr | Washoe | 1921 | Fair | 13,000 |
| Sr430 N Virginia over Ditch | Washoe | 1922 | Fair | 19,200 |
| SR 230/starr Vly over Sprr And Dry Wash | Elko | 1924 | Fair | 100 |
| IRR US 395 over Allerman Canal | Douglas | 1927 | Good | 12,000 |
| Bridge Street over Truckee River | Washoe | 1928 | Fair | 1,815 |
| I 80e over Creek | Elko | 1930 | Fair | 5,600 |
| Fr El23 over Slough | Elko | 1930 | Fair | 100 |
| Goose Creek RD over Goose Crk | Elko | 1930 | Fair | 12 |
| Sr208 Topaz RD over East Walker Rvr | Lyon | 1930 | Fair | 390 |
| Sr582 Boulder HWY over Flamingo Wash | Clark | 1931 | Good | 17,500 |
| SR 208/topaz RD over West Walker River | Lyon | 1931 | Fair | 340 |
| SR 208/topaz RD over W. Walker River Overflow | Lyon | 1931 | Good | 340 |
| Lake Shore Bl over Incline Creek | Washoe | 1931 | Fair | 3,000 |
| SR 170 Bunkervl RD over Dry Wash | Clark | 1932 | Fair | 240 |
| Mesquite BLVD over Mesquite Wash | Clark | 1932 | Good | 10,400 |
| US 93 over Meadow Valley Wash | Lincoln | 1932 | Good | 740 |
| Adaven RD over Sidehill Gap | Nye | 1932 | Good | 24 |
| US 93 over Salmon Falls Crk | Elko | 1933 | Fair | 3,200 |
| Fr El49 over Uprr | Elko | 1933 | Poor | 12 |
| US 95 over Quinn Rvr | Humboldt | 1934 | Fair | 2,400 |
| US 93 over Meadow Valley Wash | Lincoln | 1934 | Fair | 1,600 |
| SR 208/topaz RD over West Walker River | Lyon | 1934 | Fair | 2,100 |
| IRR Old SR 33 over Smoke Crk | Washoe | 1934 | Fair | 40 |
| Sr722 Carroll Summ over Eastgate Wash | Churchill | 1935 | Fair | 40 |
| North Downs Lane over S-canal | Churchill | 1935 | Good | 500 |
| Sr756 Centerville over Rocky Slough | Douglas | 1935 | Fair | 7,950 |
| Sr756 Centerville over Cottonwood Slough | Douglas | 1935 | Fair | 5,150 |
| Toler LN over Irrigation Ditch | Douglas | 1935 | Good | 2,400 |
| Sr230 Starr Vly RD over Uprr | Elko | 1935 | Fair | 100 |
| Fr Eu02 over Whitehouse Canal | Eureka | 1935 | Fair | 100 |
| Fr 402 over Uprr | Eureka | 1935 | Fair | 100 |
| BIA RTE 0007 over Weber Reservoir | Mineral | 1935 | Fair | 25 |
| IRR Sr116 Stillwtr over S-canal | Churchill | 1936 | Fair | 1,450 |
| IRR Dressler LN over W Fork Carson Rvr | Douglas | 1936 | Fair | 650 |
| Centerville Lane over West Fork Carson River | Douglas | 1936 | Good | 2,900 |
| US 6 over Sand Springs Wash | Nye | 1936 | Fair | 220 |
| US 6 over Willow Crk | Nye | 1936 | Fair | 450 |
| Sr401 Rye Patch D over Rye Patch Spillway | Pershing | 1936 | Fair | 250 |
| Las Vegas Blvd. over Dry Wash | Clark | 1937 | Fair | 17,000 |
| Sierra ST over Truckee Rvr | Washoe | 1937 | Poor | 7,600 |
| Lake ST over Truckee Rvr | Washoe | 1937 | Fair | 6,900 |
| US 93 over John Henry Wash | White Pine | 1937 | Fair | 480 |
| I 80 over Highland Ditch (old) | Washoe | 1938 | Fair | 46,500 |
| Sr425 3rd ST over Truckee Rvr | Washoe | 1938 | Good | 2,100 |
| Arlington Av over Truckee Rvr | Washoe | 1938 | Poor | 10,000 |
| IRR Sr225 Mtn City over Humboldt Rvr | Elko | 1939 | Good | 400 |
| Old US 40 over Sprr | Humboldt | 1939 | Fair | 122 |
| Sr425 3rd ST over Truckee Rvr | Washoe | 1939 | Good | 1,850 |
| Sr230 Starr Vly RD over Marys Rvr | Elko | 1940 | Fair | 100 |
| Sr230 Starr Vly RD over Humboldt Rvr | Elko | 1940 | Fair | 100 |
| Sr718 Lonetree RD over Drainage Canal | Churchill | 1941 | Fair | 570 |
| Eldorado Access Ro over Eldorado Canyon | Clark | 1941 | Fair | 103 |
| Sr361 Gabbs Vly over Letts Wash | Nye | 1942 | Fair | 370 |
| Sr169 Logandale RD over Muddy Rvr | Clark | 1944 | Fair | 5,300 |
| Sunset RD over Sr171 Airport Connect | Clark | 1944 | Fair | 16,500 |
| I 15 over California Wash | Clark | 1945 | Fair | 13,500 |
| I 15 over Dry Wash | Clark | 1945 | Fair | 13,500 |
| Shady Av over Gold Canyon Crk | Lyon | 1945 | Poor | 128 |
| Sr227 Lamoille RD over Lamoille Crk | Elko | 1946 | Fair | 830 |
| Sr278 Eureka-carln over Garden Pass Crk | Eureka | 1946 | Fair | 770 |
| Fr Eu02 over Humboldt Rvr Oflow | Eureka | 1946 | Fair | 100 |
| Sr829 Wellington over Saroni Canal | Lyon | 1946 | Fair | 510 |
| Sr338 Sweetwater over Saroni Canal | Lyon | 1946 | Good | 480 |
| Sr757 Muller LN over Mid Chnl Carson Rvr | Douglas | 1947 | Good | 1,750 |
| Sr757 Muller LN over E Chnl Carson Rvr | Douglas | 1947 | Good | 1,750 |
| Sr757 Muller LN over Carson Rvr | Douglas | 1947 | Fair | 1,750 |
| SR 338/sweetwater over Dalzell Canyon | Lyon | 1947 | Fair | 400 |
| SR 338/sweetwater over Dalzell Canyon | Lyon | 1947 | Good | 400 |
| SR 338/sweetwater over Dalzell Canyon | Lyon | 1947 | Good | 400 |
| Farm District Road over Truckee-carson Canal | Churchill | 1948 | Fair | 11 |
| Sr604/las Vegas Bl over Dry Wash | Clark | 1948 | Good | 25,400 |
| Sr604/las Vegas Bl over Dry Wash | Clark | 1948 | Good | 25,400 |
| Sr604/las Vegas Bl over Dry Wash | Clark | 1948 | Good | 25,400 |
| Las Vegas Blvd. over Flamingo Wash | Clark | 1948 | Fair | 60,000 |
| IRR US 395 over Carson River Overflow | Douglas | 1948 | Fair | 32,000 |
| Sr722 Carroll Smt over Reese Rvr | Lander | 1948 | Good | 60 |
| SR 319/panaca RD over Meadow Valley Wash | Lincoln | 1948 | Good | 1,800 |
| US 95 over L-line Canal | Churchill | 1949 | Good | 5,150 |
| IRR Sr225 Mnt City over E Fork Owyhee Rvr | Elko | 1949 | Fair | 400 |
| IRR Sr140 over Quinn Rvr | Humboldt | 1949 | Good | 310 |
| SR 425 Third ST over Power Canal | Washoe | 1949 | Good | 2,100 |
| IRR Sr225 Mtn City over E Fork Owyhee Rvr | Elko | 1950 | Fair | 400 |
| US 95 over Ramsey Wash | Esmeralda | 1950 | Fair | 2,900 |
| Sr305 Battle Mtn R over Reese Rvr | Lander | 1950 | Fair | 430 |
| SR 726/old River R over Carson River | Churchill | 1951 | Good | 360 |
| SR 88 Woodfords RD over E Fork Carson Rvr | Douglas | 1951 | Fair | 12,800 |
| IRR Sr228 Jiggs RD over Mccutcheon Crk | Elko | 1951 | Good | 590 |
| IRR Sr228 Jiggs RD over S Fork Humboldt Rvr | Elko | 1951 | Fair | 1,800 |
| US 93 over Dry Wash | Clark | 1952 | Good | 740 |
| SR 88/woodford RD over Cottonwood Slough | Douglas | 1952 | Good | 12,800 |
| SR 88 Woodfords RD over Brockliss Slough | Douglas | 1952 | Good | 4,500 |
| US 50 over Slough Crk | Eureka | 1952 | Fair | 1,100 |
| US 93 over Antelope Canyon Wash | Lincoln | 1952 | Fair | 1,600 |
| SR 88 Woodfords RD over Home Slough | Douglas | 1953 | Good | 12,800 |
| US 93 over Thousand Springs Creek | Elko | 1953 | Fair | 3,200 |
| Sr361 Gabbs Vly over Quartz Wash | Nye | 1953 | Fair | 380 |
| I 80 over North Truckee Drain | Washoe | 1953 | Good | 49,000 |
| US 95 over Aa-canal | Churchill | 1954 | Good | 3,000 |
| I 15n over Toquop Wash | Clark | 1954 | Good | 12,400 |
| SR 278 Eureka-carl over Humboldt Rvr | Elko | 1954 | Fair | 480 |
| Paradise Vly RD over Mullinix Crk | Humboldt | 1954 | Good | 100 |
| SR 157 over Dry Wash | Clark | 1955 | Good | 3,700 |
| Fas 157 over Kyle Canyon Wash | Clark | 1955 | Fair | 3,700 |
| US 93a over Dry Wash | Elko | 1955 | Fair | 620 |
| US 93a over Rosebud Spring Wash | Elko | 1955 | Fair | 620 |
| US 93a over Felt Wash | Elko | 1955 | Good | 620 |
| US 50 over Slough Crk | Eureka | 1955 | Fair | 1,100 |
| US 50 over Slough Crk | Eureka | 1955 | Fair | 1,100 |
| SR 208/topaz RD over Simpson Canal | Lyon | 1955 | Good | 3,400 |
| US 95a over Walker Rvr | Lyon | 1955 | Fair | 5,900 |
| Rural Road over Truckee-carson Canal | Lyon | 1955 | Poor | 274 |
| SR 715/mclean LN over Carson River | Churchill | 1956 | Good | 2,450 |
| Sr146 ST Rose Pw over Dry Wash | Clark | 1956 | Fair | 45,000 |
| I 215 over Dry Wash | Clark | 1956 | Fair | 159,000 |
| Sr564 Lake Mead Pw over Dry Wash | Clark | 1956 | Fair | 57,000 |
| SR 756 Centerville over E Fork Carson Rvr | Douglas | 1956 | Fair | 8,950 |
| County Road #745 over Meadow Creek | Elko | 1956 | Fair | 10 |
| SR 822 Dayton Vly over Carson Rvr | Lyon | 1956 | Fair | 11,200 |
| US 95 over Dry Wash | Mineral | 1956 | Good | 3,700 |
| US 95 over Amargosa River | Nye | 1956 | Fair | 3,400 |
| US 95 over Amargosa Rvr | Nye | 1956 | Fair | 4,300 |
| US 95 over Dry Wash | Nye | 1956 | Good | 4,300 |
| SR 715/mclean LN over V-canal | Churchill | 1957 | Fair | 2,000 |
| US 95 over Dry Wash | Churchill | 1957 | Good | 1,200 |
| Sr604/las Vegas Bl over Vandenberg Wash | Clark | 1957 | Fair | 6,950 |
| Sr604/las Vegas Bl over Dry Wash | Clark | 1957 | Fair | 6,950 |
| Las Vegas Blvd. over Tropicana Wash | Clark | 1957 | Fair | 68,000 |
| Sr88 Woodfords RD over Rocky Slough | Douglas | 1957 | Good | 9,850 |
| Mottsville Lane over Brockliss Slough | Douglas | 1957 | Fair | 3,800 |
| IRR Cordero Mine R over Mcdermitt Crk | Humboldt | 1957 | Fair | 20 |
| IRR Cordero Mine R over Oregon Cyn Crk | Humboldt | 1957 | Fair | 20 |
| Fr Wa16 over Truckee Rvr | Washoe | 1957 | Fair | 820 |
| I 80 over Clark Station Rd. | Washoe | 1957 | Good | 42,500 |
| I 80 over Patrick Exit 28 | Washoe | 1957 | Good | 42,500 |
| US 6 over White Rvr | White Pine | 1957 | Good | 460 |
| US 95 over Humboldt Slough | Churchill | 1958 | Good | 1,200 |
| IRR I 15 over Dry Wash | Clark | 1958 | Fair | 14,600 |
| IRR I 15 over Dry Wash | Clark | 1958 | Good | 14,600 |
| IRR I 15 over Dry Wash | Clark | 1958 | Fair | 29,200 |
| US 93 over Meadow Valley Wash | Clark | 1958 | Fair | 1,600 |
| I 15 over Dry Wash | Clark | 1958 | Fair | 45,000 |
| I 15 over Dry Wash | Clark | 1958 | Fair | 45,000 |
| IRR I 15 over Uprr | Clark | 1958 | Fair | 14,600 |
| IRR I 15 over Uprr | Clark | 1958 | Fair | 14,600 |
| IRR I 15 over SR 169/logandale RD | Clark | 1958 | Good | 14,600 |
| I 15 over SR 169/logandale RD | Clark | 1958 | Fair | 14,600 |
| I 15n over Cross Road | Clark | 1958 | Fair | 23,500 |
| I 15s over Cross Road | Clark | 1958 | Fair | 23,500 |
| I 15n over Sr161 Good Spring RD | Clark | 1958 | Good | 22,500 |
| I 15s over Sr161 Good Spring RD | Clark | 1958 | Good | 22,500 |
| US 93 over Salmon Falls Creek | Elko | 1958 | Fair | 3,200 |
| US 93 over Meadow Valley Wash | Lincoln | 1958 | Good | 1,600 |
| US 93 over Comet Crk | Lincoln | 1958 | Good | 1,600 |
| I 80 over Orchard Exit 38 | Washoe | 1958 | Fair | 28,000 |
| I 80 over Painted Rock Exit 40 | Washoe | 1958 | Fair | 28,000 |
| Cross Road-thisbe over I 80 | Washoe | 1958 | Fair | 120 |
| US 6 over Jakes Wash | White Pine | 1958 | Fair | 2,250 |
| US 50 over Upper Diagonal Drain | Churchill | 1959 | Fair | 1,300 |
| US 50 over Hl4 Drain | Churchill | 1959 | Good | 1,300 |
| US 50 over River Extension Drain | Churchill | 1959 | Good | 1,300 |
| SR 117/sheckler RD over Lb Lateral Canal | Churchill | 1959 | Fair | 4,000 |
| I 15 over Uprr | Clark | 1959 | Fair | 26,000 |
| I 15 over Uprr | Clark | 1959 | Fair | 26,000 |
| I 15 over SR 739/sloan RD | Clark | 1959 | Good | 26,000 |
| I 15 over SR 739/sloan RD | Clark | 1959 | Good | 26,000 |
| SR 305 over Reese Rvr | Lander | 1959 | Fair | 410 |
| SR 208 Topaz RD over W Walker Rvr Wilson C | Lyon | 1959 | Fair | 1,500 |
| SR 445/pyramid L. over Orr Ditch | Washoe | 1959 | Fair | 50,500 |
| I 80e over Jessup Exit 78 | Churchill | 1960 | Fair | 4,775 |
| I 80w over Jessup Exit 78 | Churchill | 1960 | Fair | 4,775 |
| Sr226 over Deep Crk | Elko | 1960 | Good | 140 |
| I 80e over Rock Crk | Humboldt | 1960 | Good | 4,475 |
| I 80w over Rock Crk | Humboldt | 1960 | Good | 4,475 |
| Golconda-midas over I 80 | Humboldt | 1960 | Good | 430 |
| I 80e over Pumpernickel Exit 205 | Humboldt | 1960 | Good | 4,400 |
| I 80w over Pumpernickel Exit 205 | Humboldt | 1960 | Good | 4,400 |
| SR 824 Day LN over West Walker Rvr | Lyon | 1960 | Good | 820 |
| US 395 over Galena Crk | Washoe | 1960 | Good | 6,900 |
| US 395n over Sr673 Stead Bl | Washoe | 1960 | Good | 25,750 |
| US 395s over Sr673 Stead Bl | Washoe | 1960 | Good | 25,750 |
| US 50 over Stingaree Wash | Churchill | 1961 | Good | 860 |
| US 50 over Dry Wash | Churchill | 1961 | Fair | 730 |
| I 80e over US 95 | Churchill | 1961 | Fair | 6,350 |
| I 80w over US 95 | Churchill | 1961 | Fair | 6,350 |
| SR 146 over Sloan Wash | Clark | 1961 | Fair | 33,500 |
| I 15 over Sloan Wash | Clark | 1961 | Fair | 52,000 |
| I 15 over Dry Wash | Clark | 1961 | Good | 151,000 |
| I 15 over Dry Wash | Clark | 1961 | Good | 151,000 |
| I 15 over Dry Wash | Clark | 1961 | Fair | 151,000 |
| I 15 SB over California Wash | Clark | 1961 | Fair | 13,500 |
| I 15 over Dry Wash | Clark | 1961 | Fair | 13,500 |
| I 15 over Dry Wash | Clark | 1961 | Fair | 12,900 |
| Lamb Bl over Cedar Chnl | Clark | 1961 | Good | 39,000 |
| I 15n over Fr Cl10 Hidden Vly | Clark | 1961 | Fair | 12,900 |
| I 15s over Fr Cl10 Hidden Vly | Clark | 1961 | Fair | 12,900 |