US Bridges

CR 387 over Indian Swamp

FairPosted for load

Gulf County, Florida · 6.8 Miles East of SR 71 · Structure no. 510009

Built
1961
64 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
600
2023 count
Owner
County
County Highway Agency

About this bridge

CR 387 over Indian Swamp is a concrete slab carrying CR 387 over Indian Swamp in Gulf County, Florida. It was built in 1961, so it is 64 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. Its operating status is: posted for load restriction.

It carries about 600 vehicles a day, roughly 12% of them trucks, projected to reach 660 by 2043. The structure is 160 ft (48.8 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCR 387
CrossesIndian Swamp
Location6.8 Miles East of SR 71
RouteCounty Highway 387
CountyGulf County
StateFlorida
Coordinates29.90238, -85.09375
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadH 15
Structure length160 ft (48.8 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 traffic600 (2023)
Projected traffic660 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 CR 387 over Indian Swamp built?

It was built in 1961, making it 64 years old in 2025.

What condition is CR 387 over Indian Swamp 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 April 2024.

How much traffic does CR 387 over Indian Swamp carry?

About 600 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is CR 387 over Indian Swamp?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns CR 387 over Indian Swamp?

It is owned by the County Highway Agency.