US Bridges

SR91 On/Off R106.6 over SR-91 N/S Tpk

Good

Palm Beach County, Florida · SR-710 Tpk Interchange · Structure no. 931011

Built
2006
19 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
174 ft
2 main spans
Daily traffic
14,200
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR91 On/Off R106.6 over SR-91 N/S Tpk is a steel continuous stringer/multi-beam or girder carrying SR91 On/Off R106.6 over SR-91 N/S Tpk in Palm Beach County, Florida. It was built in 2006, so it is 19 years old, younger 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 14,200 vehicles a day, roughly 20% of them trucks, projected to reach 24,637 by 2042. The structure is 174 ft (52.9 m) long and 73 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR91 On/Off R106.6
CrossesSR-91 N/S Tpk
LocationSR-710 Tpk Interchange
RouteState Highway 91
CountyPalm Beach County
StateFlorida
Coordinates26.80332, -80.13138
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68 US tons
Inventory rating40.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length174 ft (52.9 m)
Longest span93 ft (28.3 m)
Deck width73 ft (22.3 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,200 (2023)
Projected traffic24,637 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR91 On/Off R106.6 over SR-91 N/S Tpk built?

It was built in 2006, making it 19 years old in 2025.

What condition is SR91 On/Off R106.6 over SR-91 N/S Tpk 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 November 2023.

How much traffic does SR91 On/Off R106.6 over SR-91 N/S Tpk carry?

About 14,200 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is SR91 On/Off R106.6 over SR-91 N/S Tpk?

The structure is 174 ft (52.9 m) long with a longest span of 93 ft (28.3 m) and a deck 73 ft wide.

Who owns SR91 On/Off R106.6 over SR-91 N/S Tpk?

It is owned by the State Toll Authority.