US Bridges

Kirby Loop Road over Five Mile Creek

GoodPosted for load

St. Lucie County, Florida · 0.6MI East of Mcneil Road · Structure no. 940067

Built
1958
67 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete
Length
90 ft
3 main spans
Daily traffic
4,400
2024 count
Owner
County
County Highway Agency

About this bridge

Kirby Loop Road over Five Mile Creek is a concrete slab carrying Kirby Loop Road over Five Mile Creek in St. Lucie County, Florida. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 4,400 vehicles a day, roughly 7% of them trucks, projected to reach 7,634 by 2046. The structure is 90 ft (27.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKirby Loop Road
CrossesFive Mile Creek
Location0.6MI East of Mcneil Road
RouteCounty Highway 0
StateFlorida
Coordinates27.41501, -80.36371
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.7 US tons
Inventory rating19.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2024)
Projected traffic7,634 by 2046
Trucks7%
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 Kirby Loop Road over Five Mile Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Kirby Loop Road over Five Mile Creek 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 January 2025.

How much traffic does Kirby Loop Road over Five Mile Creek carry?

About 4,400 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Kirby Loop Road over Five Mile Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Kirby Loop Road over Five Mile Creek?

It is owned by the County Highway Agency.