Csah 31 over Thief River
Good Condition48 years old260 vehicles/day
Location
| State | Minnesota |
| County | Pennington |
| Location | 1.4 Mi N Of Jct TH 1 |
| Carries | Csah 31 |
| Crosses | Thief River |
| Coordinates | 48.14499, -96.17557 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 171.6 ft (52.3 m) |
| Max Span | 56.8 ft (17.3 m) |
| Deck Width | 37.4 ft (11.4 m) |
| Deck Area | 596.2 sq m |
| Main Spans | 3 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 260 (2019) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 57504 |