US Bridges

CR-579 (m.B.R.) over New River

Good

Hillsborough County, Florida · 3.2MI S of Chancey RD · Structure no. 104405

Built
1961
64 years old
Condition
Good
inspected January 2024
Type
Channel Beam
Prestressed Concrete
Length
66 ft
3 main spans
Daily traffic
14,000
2023 count
Owner
County
County Highway Agency

About this bridge

CR-579 (m.B.R.) over New River is a prestressed concrete channel beam carrying CR-579 (m.B.R.) over New River in Hillsborough County, Florida. It was built in 1961, so it is 64 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 14,000 vehicles a day, roughly 9% of them trucks, projected to reach 24,500 by 2042. The structure is 66 ft (20.2 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCR-579 (m.B.R.)
CrossesNew River
Location3.2MI S of Chancey RD
RouteCounty Highway 579
CountyHillsborough County
StateFlorida
Coordinates28.16547, -82.26506
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating38.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length66 ft (20.2 m)
Longest span22 ft (6.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2023)
Projected traffic24,500 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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-579 (m.B.R.) over New River built?

It was built in 1961, making it 64 years old in 2025.

What condition is CR-579 (m.B.R.) over New River 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-579 (m.B.R.) over New River carry?

About 14,000 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is CR-579 (m.B.R.) over New River?

The structure is 66 ft (20.2 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.

Who owns CR-579 (m.B.R.) over New River?

It is owned by the County Highway Agency.