US Bridges

Neptune RD over St. Cloud Canal C-31

Fair

Osceola County, Florida · 0.1 MI SE of Fla Turnpike · Structure no. 924049

Built
1957
68 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
19,300
2023 count
Owner
County
County Highway Agency

About this bridge

Neptune RD over St. Cloud Canal C-31 is a concrete slab carrying Neptune RD over St. Cloud Canal C-31 in Osceola County, Florida. It was built in 1957, 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 5 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 19,300 vehicles a day, roughly 14% of them trucks, projected to reach 33,486 by 2043. The structure is 100 ft (30.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNeptune RD
CrossesSt. Cloud Canal C-31
Location0.1 MI SE of Fla Turnpike
RouteCounty Highway 525
StateFlorida
Coordinates28.25393, -81.32714
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,300 (2023)
Projected traffic33,486 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Neptune RD over St. Cloud Canal C-31 built?

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

What condition is Neptune RD over St. Cloud Canal C-31 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 June 2024.

How much traffic does Neptune RD over St. Cloud Canal C-31 carry?

About 19,300 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Neptune RD over St. Cloud Canal C-31?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Neptune RD over St. Cloud Canal C-31?

It is owned by the County Highway Agency.