US Bridges

CR 275 over Mill Creek

Fair

Calhoun County, Florida · 2.3 Miles West of SR 71 · Structure no. 470042

Built
1954
71 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
600
2023 count
Owner
County
County Highway Agency

About this bridge

CR 275 over Mill Creek is a concrete culvert carrying CR 275 over Mill Creek in Calhoun County, Florida. It was built in 1954, so it is 71 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 600 vehicles a day, roughly 9% of them trucks, projected to reach 660 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCR 275
CrossesMill Creek
Location2.3 Miles West of SR 71
RouteCounty Highway 275
CountyCalhoun County
StateFlorida
Coordinates30.35425, -85.14697
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 inspectionAugust 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic660 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 275 over Mill Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is CR 275 over 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 August 2024.

How much traffic does CR 275 over Mill Creek carry?

About 600 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is CR 275 over Mill Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3.2 m).

Who owns CR 275 over Mill Creek?

It is owned by the County Highway Agency.