US 1 SB (900073) over Marvin D. Adams Waterway
GoodMonroe County, Florida · Key Largo (mm 103.6) · Structure no. 900130
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 116 ft
- 1 main span
- Daily traffic
- 15,126
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US 1 SB (900073) over Marvin D. Adams Waterway is a prestressed concrete stringer/multi-beam or girder carrying US 1 SB (900073) over Marvin D. Adams Waterway in Monroe County, Florida. It was built in 1993, so it is 32 years old, younger than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 15,126 vehicles a day, roughly 11% of them trucks, projected to reach 26,244 by 2044. The structure is 116 ft (35.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 1 SB (900073) over Marvin D. Adams Waterway built?
It was built in 1993, making it 32 years old in 2025.
What condition is US 1 SB (900073) over Marvin D. Adams Waterway in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does US 1 SB (900073) over Marvin D. Adams Waterway carry?
About 15,126 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is US 1 SB (900073) over Marvin D. Adams Waterway?
The structure is 116 ft (35.4 m) long with a longest span of 116 ft (35.4 m) and a deck 43 ft wide.
Who owns US 1 SB (900073) over Marvin D. Adams Waterway?
It is owned by the State Highway Agency.