Structure 8030 · Oakland County, MI
Carries I-75 over Deerlake Creek, 1.4 Mi W Of M-15.
A culvert 25 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Michigan |
| County | Oakland |
| Location | 1.4 Mi W Of M-15 |
| Carries | I-75 |
| Crosses | Deerlake Creek |
| Coordinates | 42.74201, -83.44587 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.6 ft (7.5 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 123 sq m |
| Main Spans | 2 |
| Year Built | 1962 |
| Avg Daily Traffic | 56,522 (2007) |
| Truck Traffic | 7% |
| Lanes On Bridge | 6 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000008030 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.