US Bridges

US 1 (sr 5) over Channel #2

Fair

Monroe County, Florida · Matecumbe Key (mm 73.0) · Structure no. 900097

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,883 ft
23 main spans
Daily traffic
12,700
2024 count
Owner
State
State Highway Agency

About this bridge

US 1 (sr 5) over Channel #2 is a prestressed concrete stringer/multi-beam or girder carrying US 1 (sr 5) over Channel #2 in Monroe County, Florida. It was built in 1981, so it is 44 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 12,700 vehicles a day, roughly 16% of them trucks, projected to reach 22,034 by 2044. The structure is 1,883 ft (573.9 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesUS 1 (sr 5)
CrossesChannel #2
LocationMatecumbe Key (mm 73.0)
RouteU.S. Route 1
CountyMonroe County
StateFlorida
Coordinates24.84331, -80.75031
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating14.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans23
Design loadHL 93
Structure length1,883 ft (573.9 m)
Longest span86 ft (26.2 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,700 (2024)
Projected traffic22,034 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 1 (sr 5) over Channel #2 built?

It was built in 1981, making it 44 years old in 2025.

What condition is US 1 (sr 5) over Channel #2 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does US 1 (sr 5) over Channel #2 carry?

About 12,700 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 1 (sr 5) over Channel #2?

The structure is 1,883 ft (573.9 m) long with a longest span of 86 ft (26.2 m) and a deck 39 ft wide.

Who owns US 1 (sr 5) over Channel #2?

It is owned by the State Highway Agency.