Interstate 684 SB over Tamarack Swamp
Fair Condition58 years old35,050 vehicles/day
Location
| State | Connecticut |
| County | Fairfield |
| Location | .46 Mi North Of N.y. S.l. |
| Carries | Interstate 684 SB |
| Crosses | Tamarack Swamp |
| Coordinates | 41.09675, -73.71740 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 1496.1 ft (456 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 54.8 ft (16.7 m) |
| Deck Area | 7615.2 sq m |
| Main Spans | 30 |
| Year Built | 1968 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 35,050 (2019) |
| Truck Traffic | 9% |
| Lanes On Bridge | 3 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 03512 |