US Bridges

CR 399 over Icww at Navarre

Fair

Santa Rosa County, Florida · 0.6 MI South of US98 · Structure no. 580951

Built
1960
65 years old
Condition
Fair
inspected February 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
2,688 ft
3 main spans
Daily traffic
14,500
2023 count
Owner
County
County Highway Agency

About this bridge

CR 399 over Icww at Navarre is a steel continuous girder and floorbeam system carrying CR 399 over Icww at Navarre in Santa Rosa 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 14,500 vehicles a day, roughly 8% of them trucks, projected to reach 25,158 by 2045. The structure is 2,688 ft (819.3 m) long and 33 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesCR 399
CrossesIcww at Navarre
Location0.6 MI South of US98
RouteCounty Highway 399
CountySanta Rosa County
StateFlorida
Coordinates30.39627, -86.86318
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+42 approach)
Design loadUnknown
Structure length2,688 ft (819.3 m)
Longest span144 ft (43.9 m)
Deck width33 ft (10.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2023)
Projected traffic25,158 by 2045
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed36 mi (58 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was CR 399 over Icww at Navarre built?

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

What condition is CR 399 over Icww at Navarre 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 February 2024.

How much traffic does CR 399 over Icww at Navarre carry?

About 14,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is CR 399 over Icww at Navarre?

The structure is 2,688 ft (819.3 m) long with a longest span of 144 ft (43.9 m) and a deck 33 ft wide.

Who owns CR 399 over Icww at Navarre?

It is owned by the County Highway Agency.