US Bridges

SR91 SB Tpk 100.38 over SR 91 Turnpike

Fair

Palm Beach County, Florida · Tpke SB Exit 99 · Structure no. 930142

Built
1956
69 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
169 ft
4 main spans
Daily traffic
3,550
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR91 SB Tpk 100.38 over SR 91 Turnpike is a steel stringer/multi-beam or girder carrying SR91 SB Tpk 100.38 over SR 91 Turnpike in Palm Beach County, Florida. It was built in 1956, 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 3,550 vehicles a day, roughly 17% of them trucks, projected to reach 6,159 by 2042. The structure is 169 ft (51.5 m) long and 41 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesSR91 SB Tpk 100.38
CrossesSR 91 Turnpike
LocationTpke SB Exit 99
RouteState Highway 91
CountyPalm Beach County
StateFlorida
Coordinates26.71098, -80.13877
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.2 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length169 ft (51.5 m)
Longest span58 ft (17.8 m)
Deck width41 ft (12.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,550 (2023)
Projected traffic6,159 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed4.3 mi (7 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$50,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR91 SB Tpk 100.38 over SR 91 Turnpike built?

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

What condition is SR91 SB Tpk 100.38 over SR 91 Turnpike 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 SB Tpk 100.38 over SR 91 Turnpike carry?

About 3,550 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SR91 SB Tpk 100.38 over SR 91 Turnpike?

The structure is 169 ft (51.5 m) long with a longest span of 58 ft (17.8 m) and a deck 41 ft wide.

Who owns SR91 SB Tpk 100.38 over SR 91 Turnpike?

It is owned by the State Toll Authority.