County RD 420 over Portage Byu
Good Condition21 years old5 vehicles/day
Location
| State | Missouri |
| County | New Madrid |
| Location | S 14 T 21 N R 13 E |
| Carries | County RD 420 |
| Crosses | Portage Byu |
| Coordinates | 36.46182, -89.61377 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Channel Beam |
| Total Length | 66.3 ft (20.2 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 24.6 ft (7.5 m) |
| Deck Area | 151.5 sq m |
| Main Spans | 3 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 5 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 32156 |