US Bridges

CR 850 over Private Canal

Good

Collier County, Florida · 1.2 Miles S of SR 82 · Structure no. 030022

Built
1968
57 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
450
2023 count
Owner
County
County Highway Agency

About this bridge

CR 850 over Private Canal is a concrete culvert carrying CR 850 over Private Canal in Collier County, Florida. It was built in 1968, so it is 57 years old, older 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 450 vehicles a day, roughly 30% of them trucks, projected to reach 800 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 14.9 mi (24 km).

CarriesCR 850
CrossesPrivate Canal
Location1.2 Miles S of SR 82
RouteCounty Highway 850
StateFlorida
Coordinates26.49553, -81.52884
Functional classRural Major Collector

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating81.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic800 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 850 over Private Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is CR 850 over Private 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 2023.

How much traffic does CR 850 over Private Canal carry?

About 450 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is CR 850 over Private Canal?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns CR 850 over Private Canal?

It is owned by the County Highway Agency.