Every bridge in Oliver County, North Dakota
23 inventoried bridges, busiest first
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Oliver County, North Dakota, has 23 bridges in the 2025 National Bridge Inventory: 11 rated good, 11 fair, and 1 poor (as of ).
- This index lists every one of them, busiest first; each links to its own condition record.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nd Highway 200 over Missouri River | 1971 | 1,430 | Fair |
| Nd Highway 200 over Creek | 1970 | 1,140 | Fair |
| Nd Highway 200 over Creek | 1971 | 940 | Poor |
| Nd Highway over Creek | 1976 | 670 | Good |
| Nd Highway over Square Butte Creek | 1987 | 650 | Good |
| Nd Highway over Br. Square Butte Creek | 1948 | 560 | Fair |
| Nd Highway 48 over Creek | 1970 | 530 | Fair |
| 35TH Ave SW over 23 1/2 Street SW | 1993 | 385 | Good |
| 36th Avenue SW over Square Butte Creek | 1982 | 385 | Good |
| 28th Avenue SW over Creek | 1993 | 380 | Good |
| 21st Street SW over Square Butte Creek | 1984 | 200 | Good |
| 37th AVE SW over Baukol-noonan Mine Road | 1985 | 115 | Fair |
| County Highway over Square Butte Creek | 1960 | 110 | Fair |
| 22nd Ave SW over Creek | 1994 | 100 | Good |
| 21ST St SW over Otter Creek | 1960 | 90 | Fair |
| 49TH Ave SW over Brady Creek | 1976 | 60 | Good |
| 28th Street SW over Creek | 1983 | 35 | Fair |
| 30TH Ave SW over Square Butte Creek | 1981 | 27 | Good |
| County Highway over Square Butte Creek | 1978 | 27 | Fair |
| 19th St SW over Brush Creek | 1960 | 25 | Fair |
| 20th St SW over Otter Creek | 1980 | 25 | Good |
| 19th Street SW over Square Butte Creek | 1987 | 20 | Good |
| 14th Street SW over Brady Creek | 1919 | 15 | Fair |
Source: FHWA National Bridge Inventory, 2025.
Oliver County bridge conditions · North Dakota bridges by county.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.