Bridge Safety in Colorado
8,990 bridges — 417 Poor condition — avg age 42 years.
Bridge Inventory
| Total Bridges | 8,990 |
| Good Condition | 3,035 |
| Fair Condition | 5,538 |
| Poor Condition | 417 |
| Oldest Bridge | Built 1887 |
| Average Age | 42 years |
Condition Summary
| % Good | 33.8% |
| % Fair | 61.6% |
| % Poor | 4.6% |
Highest-Traffic Poor Condition Bridges in Colorado
Poor condition bridges sorted by daily traffic — the most urgent safety concerns.
| Bridge | Condition | Year Built | ADT | Length |
|---|---|---|---|---|
| GOLDSMITH GULCH | Poor | 1971 | 128,000 | — |
| US 6 ML | Poor | 1989 | 107,500 | — |
| SH 121 ML | Poor | 1972 | 101,000 | — |
| SAND CREEK | Poor | 1962 | 60,000 | — |
| SH 391 ML | Poor | 1967 | 57,000 | — |
| SH 391 ML | Poor | 1967 | 57,000 | — |
| US 6 ML | Poor | 1969 | 53,000 | — |
| SOUTH PLATTE RIVER | Poor | 1969 | 48,500 | — |
| DITCH RD BURLINGTON CANA | Poor | 1969 | 48,500 | — |
| SH 265 ML UP RR BNSF RR | Poor | 1969 | 48,500 | — |
| SERVICE RD BNSF RR | Poor | 1970 | 48,500 | — |
| E 64TH AVE BURLINGTON C | Poor | 1969 | 48,500 | — |
| SOUTH PLATTE RIVER | Poor | 1969 | 48,500 | — |
| LITTLE DRY CREEK | Poor | 1955 | 46,000 | — |
| WEST 20TH AVE | Poor | 1968 | 45,500 | — |
| CLEAR CREEK R | Poor | 1959 | 41,000 | — |
| SAND CREEK | Poor | 1940 | 40,000 | — |
| MARSHALL STREET | Poor | 1980 | 38,000 | — |
| MARSHALL STREET | Poor | 1980 | 38,000 | — |
| CLEAR CREEK | Poor | 1984 | 38,000 | — |
Oldest Bridges in Colorado
| Bridge | Condition | Year Built | Age | ADT |
|---|---|---|---|---|
| COTTONWOOD CREEK | Fair | 1887 | 139 yrs | 6,580 |
| RIO GRANDE RIVER | Poor | 1892 | 134 yrs | 37 |
| EAST FORK EIGHT MILE CRK | Poor | 1894 | 132 yrs | 25 |
| FOREIGN TRADE ZONE BLVD | Good | 1901 | 125 yrs | 435 |
| Misc Drainage Basin | Good | 1901 | 125 yrs | 6,085 |
| Local Drainage | Poor | 1901 | 125 yrs | 309 |
| Capitol Creek | Fair | 1901 | 125 yrs | 2 |
| SHOOKS RUN | Poor | 1902 | 124 yrs | 18,034 |
| BESSEMER DITCH | Fair | 1903 | 123 yrs | 992 |
| TEXAS CREEK | Fair | 1906 | 120 yrs | 1,800 |
Bridge Safety in Colorado
Bridge condition data for Colorado comes from the FHWA National Bridge Inventory. All publicly accessible bridges with a span over 20 feet are inspected at least every 24 months by certified bridge inspectors.