US Bridges

North River Road over Austin Relief Canal

Good

Hendry County, Florida · 0.1 MI West of CR-78A · Structure no. 074031

Built
1996
29 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
43 ft
3 main spans
Daily traffic
500
2021 count
Owner
County
County Highway Agency

About this bridge

North River Road over Austin Relief Canal is a concrete culvert carrying North River Road over Austin Relief Canal in Hendry County, Florida. It was built in 1996, so it is 29 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 625 by 2041. The structure is 43 ft (13.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorth River Road
CrossesAustin Relief Canal
Location0.1 MI West of CR-78A
RouteCounty Highway 0
StateFlorida
Coordinates26.7543, -81.48144
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.3 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length43 ft (13.2 m)
Longest span15 ft (4.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2021)
Projected traffic625 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 North River Road over Austin Relief Canal built?

It was built in 1996, making it 29 years old in 2025.

What condition is North River Road over Austin Relief 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 June 2023.

How much traffic does North River Road over Austin Relief Canal carry?

About 500 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is North River Road over Austin Relief Canal?

The structure is 43 ft (13.2 m) long with a longest span of 15 ft (4.7 m).

Who owns North River Road over Austin Relief Canal?

It is owned by the County Highway Agency.