US Bridges

US 1 (sr 5) over South Pine Channel

Good

Monroe County, Florida · N of Torch Key (mm 28.8) · Structure no. 900111

Built
1982
43 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
928 ft
10 main spans
Daily traffic
18,000
2024 count
Owner
State
State Highway Agency

About this bridge

US 1 (sr 5) over South Pine Channel is a prestressed concrete stringer/multi-beam or girder carrying US 1 (sr 5) over South Pine Channel in Monroe County, Florida. It was built in 1982, so it is 43 years old, older 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 18,000 vehicles a day, roughly 18% of them trucks, projected to reach 31,230 by 2044. The structure is 928 ft (282.9 m) long and 46 ft wide. If it were closed, the detour would be 99.4 mi (160 km).

CarriesUS 1 (sr 5)
CrossesSouth Pine Channel
LocationN of Torch Key (mm 28.8)
RouteU.S. Route 1
StateFlorida
Coordinates24.66692, -81.38488
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length928 ft (282.9 m)
Longest span93 ft (28.3 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2024)
Projected traffic31,230 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed99.4 mi (160 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$189,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 1 (sr 5) over South Pine Channel built?

It was built in 1982, making it 43 years old in 2025.

What condition is US 1 (sr 5) over South Pine Channel 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 June 2024.

How much traffic does US 1 (sr 5) over South Pine Channel carry?

About 18,000 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is US 1 (sr 5) over South Pine Channel?

The structure is 928 ft (282.9 m) long with a longest span of 93 ft (28.3 m) and a deck 46 ft wide.

Who owns US 1 (sr 5) over South Pine Channel?

It is owned by the State Highway Agency.