US Bridges

SR91 N/S Tpk 115.5 over Hungryland Canal C-18

Fair

Palm Beach County, Florida · 0.5MI South of SR-706 · Structure no. 930239

Built
1957
68 years old, rebuilt 1991
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
5 main spans
Daily traffic
55,449
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR91 N/S Tpk 115.5 over Hungryland Canal C-18 is a prestressed concrete stringer/multi-beam or girder carrying SR91 N/S Tpk 115.5 over Hungryland Canal C-18 in Palm Beach County, Florida. It was built in 1957 and reconstructed in 1991, so it is 68 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 55,449 vehicles a day, roughly 20% of them trucks, projected to reach 96,204 by 2042. The structure is 240 ft (73.2 m) long and 91 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR91 N/S Tpk 115.5
CrossesHungryland Canal C-18
Location0.5MI South of SR-706
RouteState Highway 91
CountyPalm Beach County
StateFlorida
Coordinates26.92832, -80.15099
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.4 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length240 ft (73.2 m)
Longest span48 ft (14.6 m)
Deck width91 ft (27.7 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,449 (2023)
Projected traffic96,204 by 2042
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 N/S Tpk 115.5 over Hungryland Canal C-18 built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1991.

What condition is SR91 N/S Tpk 115.5 over Hungryland Canal C-18 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 November 2023.

How much traffic does SR91 N/S Tpk 115.5 over Hungryland Canal C-18 carry?

About 55,449 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is SR91 N/S Tpk 115.5 over Hungryland Canal C-18?

The structure is 240 ft (73.2 m) long with a longest span of 48 ft (14.6 m) and a deck 91 ft wide.

Who owns SR91 N/S Tpk 115.5 over Hungryland Canal C-18?

It is owned by the State Toll Authority.