US Bridges

CR 379 over Gregory Mill Creek

Fair

Liberty County, Florida · 12.8 MI West of SR 65 · Structure no. 560044

Built
1960
65 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

CR 379 over Gregory Mill Creek is a concrete culvert carrying CR 379 over Gregory Mill Creek in Liberty 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 6 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 250 vehicles a day, roughly 15% of them trucks, projected to reach 275 by 2043. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 379
CrossesGregory Mill Creek
Location12.8 MI West of SR 65
RouteCounty Highway 379
CountyLiberty County
StateFlorida
Coordinates30.17719, -85.07164
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic275 by 2043
Trucks15%
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 CR 379 over Gregory Mill Creek built?

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

What condition is CR 379 over Gregory Mill 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 January 2025.

How much traffic does CR 379 over Gregory Mill Creek carry?

About 250 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is CR 379 over Gregory Mill Creek?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m).

Who owns CR 379 over Gregory Mill Creek?

It is owned by the County Highway Agency.