US Bridges

Carlton Lake Road over Carlton Branch

Good

Hillsborough County, Florida · 0.1MI N of Sweat Loop · Structure no. 104313

Built
1964
61 years old
Condition
Good
inspected April 2024
Type
Channel Beam
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
970
2024 count
Owner
County
County Highway Agency

About this bridge

Carlton Lake Road over Carlton Branch is a prestressed concrete channel beam carrying Carlton Lake Road over Carlton Branch in Hillsborough County, Florida. It was built in 1964, so it is 61 years old, older 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 970 vehicles a day, roughly 5% of them trucks, projected to reach 1,213 by 2044. The structure is 26 ft (8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCarlton Lake Road
CrossesCarlton Branch
Location0.1MI N of Sweat Loop
RouteCounty Highway 0
StateFlorida
Coordinates27.74615, -82.24473
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length26 ft (8 m)
Longest span26 ft (8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic970 (2024)
Projected traffic1,213 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Carlton Lake Road over Carlton Branch built?

It was built in 1964, making it 61 years old in 2025.

What condition is Carlton Lake Road over Carlton Branch 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 2024.

How much traffic does Carlton Lake Road over Carlton Branch carry?

About 970 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Carlton Lake Road over Carlton Branch?

The structure is 26 ft (8 m) long with a longest span of 26 ft (8 m) and a deck 30 ft wide.

Who owns Carlton Lake Road over Carlton Branch?

It is owned by the County Highway Agency.