US Bridges

US-27 NB over Lake Jackson

Good

Highlands County, Florida · 4.7 MI North of SR-66 · Structure no. 090050

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
41,500
2023 count
Owner
State
State Highway Agency

About this bridge

US-27 NB over Lake Jackson is a concrete continuous slab carrying US-27 NB over Lake Jackson in Highlands County, Florida. It was built in 1998, so it is 27 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 41,500 vehicles a day, roughly 8% of them trucks, projected to reach 72,003 by 2042. The structure is 85 ft (25.9 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS-27 NB
CrossesLake Jackson
Location4.7 MI North of SR-66
RouteU.S. Route 27
StateFlorida
Coordinates27.47153, -81.46241
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length85 ft (25.9 m)
Longest span29 ft (8.8 m)
Deck width62 ft (18.9 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,500 (2023)
Projected traffic72,003 by 2042
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 US-27 NB over Lake Jackson built?

It was built in 1998, making it 27 years old in 2025.

What condition is US-27 NB over Lake Jackson 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 April 2023.

How much traffic does US-27 NB over Lake Jackson carry?

About 41,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US-27 NB over Lake Jackson?

The structure is 85 ft (25.9 m) long with a longest span of 29 ft (8.8 m) and a deck 62 ft wide.

Who owns US-27 NB over Lake Jackson?

It is owned by the State Highway Agency.