US Bridges

CR-858 over Drainage Canal

Good

Collier County, Florida · 8.6 MI W/O SR-29 · Structure no. 034177

Built
2012
13 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
4,500
2024 count
Owner
County
County Highway Agency

About this bridge

CR-858 over Drainage Canal is a concrete culvert carrying CR-858 over Drainage Canal in Collier County, Florida. It was built in 2012, so it is 13 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 4,500 vehicles a day, roughly 18% of them trucks, projected to reach 5,625 by 2042. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 14.9 mi (24 km).

CarriesCR-858
CrossesDrainage Canal
Location8.6 MI W/O SR-29
RouteCounty Highway 858
StateFlorida
Coordinates26.29411, -81.47944
Functional classRural Minor 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 inspectionJanuary 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 rating60.1 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.5 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic4,500 (2024)
Projected traffic5,625 by 2042
Trucks18%
Lanes on structure4
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-858 over Drainage Canal built?

It was built in 2012, making it 13 years old in 2025.

What condition is CR-858 over Drainage 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 January 2024.

How much traffic does CR-858 over Drainage Canal carry?

About 4,500 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is CR-858 over Drainage Canal?

The structure is 25 ft (7.5 m) long with a longest span of 13 ft (3.9 m).

Who owns CR-858 over Drainage Canal?

It is owned by the County Highway Agency.