US Bridges

CR 299-CURTIS Mill over Cow Creek

Fair

Wakulla County, Florida · 2.8 Miles W US319/SR377 · Structure no. 590027

Built
1960
65 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
300
2022 count
Owner
County
County Highway Agency

About this bridge

CR 299-CURTIS Mill over Cow Creek is a concrete culvert carrying CR 299-CURTIS Mill over Cow Creek in Wakulla 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 300 vehicles a day, roughly 11% of them trucks, projected to reach 325 by 2042. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 299-CURTIS Mill
CrossesCow Creek
Location2.8 Miles W US319/SR377
RouteCounty Highway 299
StateFlorida
Coordinates30.02497, -84.53513
Functional classRural Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic325 by 2042
Trucks11%
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 299-CURTIS Mill over Cow Creek built?

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

What condition is CR 299-CURTIS Mill over Cow 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 June 2023.

How much traffic does CR 299-CURTIS Mill over Cow Creek carry?

About 300 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is CR 299-CURTIS Mill over Cow Creek?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.8 m).

Who owns CR 299-CURTIS Mill over Cow Creek?

It is owned by the County Highway Agency.