Dunn Road over Portage River
Fair Condition48 years old250 vehicles/day
Location
| State | Michigan |
| County | Jackson |
| Location | 3.5 Mi SE Of Munith |
| Carries | Dunn Road |
| Crosses | Portage River |
| Coordinates | 42.34983, -84.26347 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 99.7 ft (30.4 m) |
| Max Span | 96.8 ft (29.5 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 316.2 sq m |
| Main Spans | 1 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 250 (1994) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000004511 |