US 1 SB (900074) over Boca Chica Channel

Fair Condition53 years old13,500 vehicles/day

Location

StateFlorida
CountyMonroe
LocationBoca Chica Key (mm 6.0)
CarriesUS 1 SB (900074)
CrossesBoca Chica Channel
Coordinates24.57760, -81.71634

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2634.8 ft (803.1 m)
Max Span62.0 ft (18.9 m)
Deck Width42.3 ft (12.9 m)
Deck Area10360.0 sq m
Main Spans43
Year Built1973

Traffic

Avg Daily Traffic13,500 (2025)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last Inspection125
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number900003

Nearby Bridges