US 1 NB (900130) over Marvin D. Adams Waterway
Good Condition53 years old15,126 vehicles/day
Location
| State | Florida |
| County | Monroe |
| Location | Key Largo (mm 103.6) |
| Carries | US 1 NB (900130) |
| Crosses | Marvin D. Adams Waterway |
| Coordinates | 25.13767, -80.40221 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 119.1 ft (36.3 m) |
| Max Span | 119.1 ft (36.3 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 471.9 sq m |
| Main Spans | 1 |
| Year Built | 1973 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 15,126 (2024) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 900073 |