Allan RD over Porter Creek
Good Condition23 years old180 vehicles/day
Location
| State | Michigan |
| County | Shiawassee |
| Location | 1.5 Mi SW Of New Lothrop |
| Carries | Allan RD |
| Crosses | Porter Creek |
| Coordinates | 43.10221, -83.99074 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 152.2 sq m |
| Main Spans | 1 |
| Year Built | 2003 |
Traffic
| Avg Daily Traffic | 180 (2002) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000009838 |