21 Mile RD over Middle Branch River
Fair Condition37 years old477 vehicles/day
Location
| State | Michigan |
| County | Osceola |
| Location | Section 16/21 T20n R7w |
| Carries | 21 Mile RD |
| Crosses | Middle Branch River |
| Coordinates | 44.11690, -85.16445 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 71.9 ft (21.9 m) |
| Max Span | 68.2 ft (20.8 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 229.9 sq m |
| Main Spans | 1 |
| Year Built | 1989 |
Traffic
| Avg Daily Traffic | 477 (2000) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008636 |