US Bridges

SR821 Rmpto I-75NB over SR-821/I-75

Fair

Miami-Dade County, Florida · 0.5MI S Broward Co.Line · Structure no. 870602

Built
1984
41 years old
Condition
Fair
inspected September 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
2,116 ft
11 main spans
Daily traffic
16,500
2024 count
Owner
State
State Highway Agency

About this bridge

SR821 Rmpto I-75NB over SR-821/I-75 is a prestressed concrete continuous segmental box girder carrying SR821 Rmpto I-75NB over SR-821/I-75 in Miami-Dade County, Florida. It was built in 1984, so it is 41 years old, younger 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 6 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 16,500 vehicles a day, roughly 12% of them trucks, projected to reach 28,628 by 2044. The structure is 2,116 ft (644.9 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR821 Rmpto I-75NB
CrossesSR-821/I-75
Location0.5MI S Broward Co.Line
RouteInterstate 75
CountyMiami-Dade County
StateFlorida
Coordinates25.9481, -80.35124
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating21.6 US tons
Inventory rating16.6 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length2,116 ft (644.9 m)
Longest span222 ft (67.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2024)
Projected traffic28,628 by 2044
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR821 Rmpto I-75NB over SR-821/I-75 built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR821 Rmpto I-75NB over SR-821/I-75 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 September 2024.

How much traffic does SR821 Rmpto I-75NB over SR-821/I-75 carry?

About 16,500 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR821 Rmpto I-75NB over SR-821/I-75?

The structure is 2,116 ft (644.9 m) long with a longest span of 222 ft (67.8 m) and a deck 43 ft wide.

Who owns SR821 Rmpto I-75NB over SR-821/I-75?

It is owned by the State Highway Agency.