US Bridges

CR-846 over Nelson Canal

FairPosted for load

Hendry County, Florida · 8.0MI E of Collier CR-858 · Structure no. 070037

Built
1954
71 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
600
2024 count
Owner
County
County Highway Agency

About this bridge

CR-846 over Nelson Canal is a concrete slab carrying CR-846 over Nelson Canal in Hendry 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 600 vehicles a day, roughly 10% of them trucks, projected to reach 720 by 2044. The structure is 60 ft (18.3 m) long and 29 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

Location

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CarriesCR-846
CrossesNelson Canal
Location8.0MI E of Collier CR-858
RouteCounty Highway 846
CountyHendry County
StateFlorida
Coordinates26.42881, -81.14267
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2024)
Projected traffic720 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 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 Nelson Canal built?

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

What condition is CR-846 over Nelson Canal 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-846 over Nelson Canal carry?

About 600 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is CR-846 over Nelson Canal?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns CR-846 over Nelson Canal?

It is owned by the County Highway Agency.