US Bridges

CR-846 over Corkscrew Canal

Good

Collier County, Florida · 5.5MI East of CR-951 · Structure no. 034063

Built
2005
20 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
34,800
2024 count
Owner
County
County Highway Agency

About this bridge

CR-846 over Corkscrew Canal is a concrete culvert carrying CR-846 over Corkscrew Canal in Collier County, Florida. It was built in 2005, so it is 20 years old, younger than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 34,800 vehicles a day, roughly 10% of them trucks, projected to reach 41,760 by 2044. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 13 mi (21 km).

CarriesCR-846
CrossesCorkscrew Canal
Location5.5MI East of CR-951
RouteCounty Highway 846
StateFlorida
Coordinates26.27725, -81.60133
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,800 (2024)
Projected traffic41,760 by 2044
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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-846 over Corkscrew Canal built?

It was built in 2005, making it 20 years old in 2025.

What condition is CR-846 over Corkscrew Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does CR-846 over Corkscrew Canal carry?

About 34,800 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is CR-846 over Corkscrew Canal?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3.1 m).

Who owns CR-846 over Corkscrew Canal?

It is owned by the County Highway Agency.