Bridge Safety in North Dakota
4,250 bridges — 470 Poor condition — avg age 48 years.
Bridge Inventory
| Total Bridges | 4,250 |
| Good Condition | 1,782 |
| Fair Condition | 1,998 |
| Poor Condition | 470 |
| Oldest Bridge | Built 1885 |
| Average Age | 48 years |
Condition Summary
| % Good | 41.9% |
| % Fair | 47.0% |
| % Poor | 11.1% |
Highest-Traffic Poor Condition Bridges in North Dakota
Poor condition bridges sorted by daily traffic — the most urgent safety concerns.
| Bridge | Condition | Year Built | ADT | Length |
|---|---|---|---|---|
| 4TH AVE BNRR SOURIS R. | Poor | 1936 | 9,000 | — |
| ND297/DEMERS AVE INT-GF | Poor | 1968 | 8,200 | — |
| GOOSE RIVER | Poor | 1970 | 4,550 | — |
| GOOSE RIVER | Poor | 1970 | 4,550 | — |
| LITTLE MUDDY RIVER | Poor | 1954 | 3,495 | — |
| LITTLE MUDDY RIVER | Poor | 2016 | 3,075 | — |
| DRAIN DITCH #39 | Poor | 1958 | 2,850 | — |
| CREEK | Poor | 2006 | 2,820 | — |
| GOOSE RIVER | Poor | 1977 | 2,010 | — |
| INTERMITTENT STREAM | Poor | 1971 | 1,970 | — |
| CANNONBALL RIVER | Poor | 1962 | 1,450 | — |
| SHEEP CREEK | Poor | 1964 | 1,300 | — |
| SPRING CREEK | Poor | 1953 | 1,070 | — |
| CREEK | Poor | 1971 | 940 | — |
| BRANCH OF RAYMOND CREEK | Poor | 1950 | 780 | — |
| WILD RICE RIVER | Poor | 1951 | 650 | — |
| CREEK | Poor | 1931 | 640 | — |
| CREEK | Poor | 1957 | 570 | — |
| MAUVAIS COULEE | Poor | 1962 | 560 | — |
| APPLE CREEK | Poor | 1965 | 518 | — |
Oldest Bridges in North Dakota
| Bridge | Condition | Year Built | Age | ADT |
|---|---|---|---|---|
| GOOSE RIVER | Fair | 1885 | 141 yrs | 20 |
| TEPEE CREEK | Fair | 1900 | 126 yrs | 15 |
| CREEK | Fair | 1900 | 126 yrs | 20 |
| Creek | Fair | 1901 | 125 yrs | 10 |
| Creek | Fair | 1901 | 125 yrs | 10 |
| Creek | Fair | 1901 | 125 yrs | 5 |
| JAMESTOWN RESERVOIR | Poor | 1901 | 125 yrs | 135 |
| SOURIS RIVER | Poor | 1902 | 124 yrs | 25 |
| MOUSE RIVER | Poor | 1902 | 124 yrs | 5 |
| JAMES RIVER | Poor | 1904 | 122 yrs | 50 |
Bridge Safety in North Dakota
Bridge condition data for North Dakota 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.