Bridge Safety in Minnesota
13,551 bridges — 609 Poor condition — avg age 39 years.
Bridge Inventory
| Total Bridges | 13,551 |
| Good Condition | 7,636 |
| Fair Condition | 5,306 |
| Poor Condition | 609 |
| Oldest Bridge | Built 1884 |
| Average Age | 39 years |
Condition Summary
| % Good | 56.4% |
| % Fair | 39.2% |
| % Poor | 4.5% |
Highest-Traffic Poor Condition Bridges in Minnesota
Poor condition bridges sorted by daily traffic — the most urgent safety concerns.
| Bridge | Condition | Year Built | ADT | Length |
|---|---|---|---|---|
| UP RR Cliff Rd (CSAH32) | Poor | 1959 | 94,603 | — |
| Minnesota River | Poor | 1981 | 44,357 | — |
| Minnesota River | Poor | 1981 | 44,357 | — |
| I 35W | Poor | 1964 | 42,500 | — |
| BIKE PATH | Poor | 1986 | 34,708 | — |
| Shingle Creek | Poor | 1964 | 32,146 | — |
| Shingle Creek | Poor | 1991 | 32,146 | — |
| ST LOUIS R; RR STREET | Poor | 1961 | 28,098 | — |
| BNSF; DAK RR; ST | Poor | 1973 | 23,800 | — |
| MINN R UP RR; STREET | Poor | 1985 | 22,949 | — |
| NB ON RAMP; TH 280 SB | Poor | 1967 | 22,391 | — |
| CN RR | Poor | 2011 | 22,000 | — |
| CEDAR AVE | Poor | 1967 | 21,982 | — |
| CP RAIL | Poor | 1927 | 19,510 | — |
| PED-BIKE TRAIL | Poor | 1951 | 19,100 | — |
| MISSISSIPPI RIVER; RR | Poor | 1926 | 17,600 | — |
| CP RAIL | Poor | 1967 | 17,200 | — |
| N RIVERFRONT DR | Poor | 1977 | 16,250 | — |
| I 35W | Poor | 1969 | 15,800 | — |
| N RIVERFRONT DR | Poor | 1977 | 15,742 | — |
Oldest Bridges in Minnesota
| Bridge | Condition | Year Built | Age | ADT |
|---|---|---|---|---|
| RCRRA | Fair | 1884 | 142 yrs | 21,524 |
| E CHAN MISSISSIPPI RIVER | Fair | 1887 | 139 yrs | 2,533 |
| MINNEHAHA CREEK | Poor | 1890 | 136 yrs | 4,334 |
| BEAVER CREEK | Poor | 1890 | 136 yrs | 1 |
| BNSF RR | Fair | 1893 | 133 yrs | 1,738 |
| South Fork Zumbro River | Poor | 1895 | 131 yrs | 75 |
| S BR ROOT RIVER | Poor | 1899 | 127 yrs | 170 |
| N FK CROW RIVER | Poor | 1899 | 127 yrs | 24 |
| STREAM | Fair | 1900 | 126 yrs | 6,908 |
| STREAM | Poor | 1900 | 126 yrs | 30 |
Bridge Safety in Minnesota
Bridge condition data for Minnesota 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.