US Bridges

CR4 N Antioch RD over Trammel Creek

Fair

Okaloosa County, Florida · 0.5 MI South of US 90 · Structure no. 574153

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
10,900
2022 count
Owner
County
County Highway Agency

About this bridge

CR4 N Antioch RD over Trammel Creek is a concrete culvert carrying CR4 N Antioch RD over Trammel Creek in Okaloosa County, Florida. It was built in 1960, so it is 65 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 10,900 vehicles a day, roughly 7% of them trucks, projected to reach 18,912 by 2042. The structure is 28 ft (8.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR4 N Antioch RD
CrossesTrammel Creek
Location0.5 MI South of US 90
RouteCounty Highway 4
CountyOkaloosa County
StateFlorida
Coordinates30.74778, -86.62083
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating59 US tons
Inventory rating38 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length28 ft (8.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,900 (2022)
Projected traffic18,912 by 2042
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 CR4 N Antioch RD over Trammel Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is CR4 N Antioch RD over Trammel Creek 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 August 2023.

How much traffic does CR4 N Antioch RD over Trammel Creek carry?

About 10,900 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is CR4 N Antioch RD over Trammel Creek?

The structure is 28 ft (8.6 m) long with a longest span of 10 ft (3 m).

Who owns CR4 N Antioch RD over Trammel Creek?

It is owned by the County Highway Agency.