US Bridges

CR-A1A (dixie Hwy) over Tributary of Manatee Crk

Good

Martin County, Florida · 900FT. S of CR A1A · Structure no. 894068

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Arch - Deck
Concrete
Length
30 ft
1 main span
Daily traffic
18,041
2023 count
Owner
County
County Highway Agency

About this bridge

CR-A1A (dixie Hwy) over Tributary of Manatee Crk is a concrete arch - deck carrying CR-A1A (dixie Hwy) over Tributary of Manatee Crk in Martin County, Florida. It was built in 2019, so it is 6 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,041 vehicles a day, roughly 2% of them trucks, projected to reach 31,301 by 2042. The structure is 30 ft (9.1 m) long and 75 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR-A1A (dixie Hwy)
CrossesTributary of Manatee Crk
Location900FT. S of CR A1A
RouteCounty Highway 0A1A
CountyMartin County
StateFlorida
Coordinates27.13874, -80.1878
Functional classUrban 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
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.8 US tons
Inventory rating37.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width75 ft (22.9 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic18,041 (2023)
Projected traffic31,301 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-A1A (dixie Hwy) over Tributary of Manatee Crk built?

It was built in 2019, making it 6 years old in 2025.

What condition is CR-A1A (dixie Hwy) over Tributary of Manatee Crk 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 November 2023.

How much traffic does CR-A1A (dixie Hwy) over Tributary of Manatee Crk carry?

About 18,041 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is CR-A1A (dixie Hwy) over Tributary of Manatee Crk?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 75 ft wide.

Who owns CR-A1A (dixie Hwy) over Tributary of Manatee Crk?

It is owned by the County Highway Agency.