US Bridges

SR91 Tpk NB 142.2 over Rim Ditch Canal C-24

Fair

St. Lucie County, Florida · 1.2MI S Port ST Lucie Rmp · Structure no. 940082

Built
1956
69 years old, rebuilt 1991
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
295 ft
6 main spans
Daily traffic
23,000
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR91 Tpk NB 142.2 over Rim Ditch Canal C-24 is a steel stringer/multi-beam or girder carrying SR91 Tpk NB 142.2 over Rim Ditch Canal C-24 in St. Lucie County, Florida. It was built in 1956 and reconstructed in 1991, so it is 69 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 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 23,000 vehicles a day, roughly 18% of them trucks, projected to reach 39,905 by 2042. The structure is 295 ft (89.9 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR91 Tpk NB 142.2
CrossesRim Ditch Canal C-24
Location1.2MI S Port ST Lucie Rmp
RouteState Highway 91
CountySt. Lucie County
StateFlorida
Coordinates27.2625, -80.35224
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length295 ft (89.9 m)
Longest span50 ft (15.1 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2024)
Projected traffic39,905 by 2042
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR91 Tpk NB 142.2 over Rim Ditch Canal C-24 built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1991.

What condition is SR91 Tpk NB 142.2 over Rim Ditch Canal C-24 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 December 2023.

How much traffic does SR91 Tpk NB 142.2 over Rim Ditch Canal C-24 carry?

About 23,000 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is SR91 Tpk NB 142.2 over Rim Ditch Canal C-24?

The structure is 295 ft (89.9 m) long with a longest span of 50 ft (15.1 m) and a deck 46 ft wide.

Who owns SR91 Tpk NB 142.2 over Rim Ditch Canal C-24?

It is owned by the State Toll Authority.