US Bridges

CR 581 NB over Cypress Creek

Good

Hillsborough County, Florida · 3.0MI S of I-75 · Structure no. 104506

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
25,500
2023 count
Owner
County
County Highway Agency

About this bridge

CR 581 NB over Cypress Creek is a prestressed concrete stringer/multi-beam or girder carrying CR 581 NB over Cypress Creek in Hillsborough County, Florida. It was built in 2017, so it is 8 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 25,500 vehicles a day, roughly 12% of them trucks, projected to reach 44,243 by 2042. The structure is 156 ft (47.5 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCR 581 NB
CrossesCypress Creek
Location3.0MI S of I-75
RouteCounty Highway 581
CountyHillsborough County
StateFlorida
Coordinates28.08817, -82.40786
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating40.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length156 ft (47.5 m)
Longest span53 ft (16.2 m)
Deck width56 ft (17.1 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic25,500 (2023)
Projected traffic44,243 by 2042
Trucks12%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 CR 581 NB over Cypress Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is CR 581 NB over Cypress Creek 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 April 2023.

How much traffic does CR 581 NB over Cypress Creek carry?

About 25,500 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is CR 581 NB over Cypress Creek?

The structure is 156 ft (47.5 m) long with a longest span of 53 ft (16.2 m) and a deck 56 ft wide.

Who owns CR 581 NB over Cypress Creek?

It is owned by the County Highway Agency.