| US 285 Ml over Alamosa Creek | 1959 | 5,200 | Fair |
| US 285 Ml over La Jara Creek | 1959 | 5,200 | Good |
| US 285 Ml over Conejos Riv.overflow | 1929 | 3,200 | Poor |
| US 285 Ml over Conejos River | 1929 | 3,200 | Fair |
| SH 15 Ml over La Jara Creek | 1938 | 1,300 | Fair |
| US 285 Ml over Rio San Antonio | 1938 | 1,200 | Fair |
| SH 17 Ml over Br. of Conejos River | 1958 | 960 | Fair |
| SH 17 Ml over Conejos River | 1958 | 960 | Fair |
| SH 17 Ml over Conejos River Ovflw | 1958 | 960 | Good |
| SH 371 Ml over Alamosa River | 1954 | 790 | Fair |
| SH 142 Ml over Conejos River | 1984 | 530 | Good |
| SH 142 Ml over N Fk Conejos River | 1935 | 530 | Fair |
| SH 142 Ml over Rio San Antonio | 1940 | 530 | Fair |
| SH 17 Ml over Conejos River | 1965 | 420 | Fair |
| SH 17 Ml over Los Pinos River | 1967 | 420 | Good |
| County Road 13 over Conejos River | 1971 | 393 | Fair |
| County Road 17 over N. Branch Conejos River | 1994 | 328 | Fair |
| County Road 17 over Conejos River | 1991 | 291 | Good |
| County Road 18 over N. Branch Conejos River | 1990 | 223 | Good |
| County Road D.5 over Conejos River | 1995 | 176 | Good |
| County Road V over Conejos River | 1947 | 136 | Poor |
| SH 142 Ml over Rio Grande | 1984 | 130 | Good |
| Fsr 128.1B over Elk Creek | 2011 | 129 | Good |
| County Road C over Rio San Antonio | 1988 | 126 | Good |
| County Road M over Conejos River | 1987 | 118 | Poor |
| Fsr 250.6A over Conejos River | 1969 | 116 | Fair |
| County Road G over Rio San Antonio | 1989 | 105 | Good |
| County Road 10 over Alamosa River | 1989 | 102 | Good |
| County Road 6 over Alamosa River | 1968 | 102 | Poor |
| County Road 8 over Alamosa River | 1968 | 102 | Fair |
| County Road 10 over Monte Vista Canal | 1991 | 96 | Fair |
| County Road 13 over Alamosa River | 1989 | 89 | Good |
| County Road B over Rio De Los Pinos | 1993 | 82 | Fair |
| County Road M over Rio San Antonio | 1980 | 82 | Fair |
| County Road Z over Rio Grande River | 1987 | 80 | Fair |
| Fdr 250 over Alamosa River | 1953 | 79 | Poor |
| County Road 16 over N. Conejos River | 1995 | 77 | Fair |
| County Road 9 over Alamosa River | 1998 | 75 | Fair |
| County Road 28 over Conejos River | 1947 | 68 | Fair |
| County Road Aa over Empire Canal | 1999 | 64 | Good |
| County Road 15 over Alamosa River | 2000 | 62 | Fair |
| County Road 28 over Conejos River Diversion | 2024 | 60 | Good |
| County Road 16 over Rio San Antonio | 1976 | 59 | Poor |
| County Road 17.5 over N. Branch Conejos River | 1989 | 59 | Fair |
| County Road Bb over Empire Canal | 1992 | 57 | Fair |
| Forest Road 240 over Hot Creek | 2011 | 55 | Good |
| County Road E.5 over Rio San Antonio | 1994 | 54 | Fair |
| County Road 16 over Conejos River | 1974 | 51 | Fair |
| Nfsr 250 over Bitter Creek | 2017 | 50 | Good |
| County Road Cc over Monte Vista Canal | 1992 | 47 | Good |
| Nfsr 250 over Alum Creek | 2020 | 47 | Good |
| County Road Dd over Monte Vista Canal | 1993 | 46 | Good |
| FSR105 over Conejos River | 2014 | 44 | Good |
| Fdr 255 over Alamosa River | 1980 | 39 | Good |
| County Road 15 over Conejos River | 1996 | 38 | Fair |
| County Road G over Rio Grande River | 1892 | 37 | Poor |
| County Road 8 over La Jara Creek | 1933 | 35 | Fair |
| County Road 19 over La Jara Creek | 1997 | 30 | Good |
| County Road Bb over Alamosa River | 1989 | 30 | Fair |
| CR 15 / 15 Mile Rd over Empire Lateral | 1998 | 25 | Fair |
| Goshawk Detention over Goshawk Dam Spillway | 1999 | 25 | Fair |
| Fdr 260 over Alamosa River | 1933 | 18 | Fair |
| County Road 430 over Conejos River | 1960 | 6 | Poor |