US Bridges

SR-72 over Cow Pen Slough

Fair

Sarasota County, Florida · 4.0 MI East of I-75 · Structure no. 170941

Built
1954
71 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
150 ft
6 main spans
Daily traffic
7,800
2025 count
Owner
State
State Highway Agency

About this bridge

SR-72 over Cow Pen Slough is a prestressed concrete stringer/multi-beam or girder carrying SR-72 over Cow Pen Slough in Sarasota 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.

It carries about 7,800 vehicles a day, roughly 16% of them trucks, projected to reach 13,533 by 2045. The structure is 150 ft (45.7 m) long and 29 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesSR-72
CrossesCow Pen Slough
Location4.0 MI East of I-75
RouteState Highway 72
StateFlorida
Coordinates27.24953, -82.38598
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2025)
Projected traffic13,533 by 2045
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$14,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-72 over Cow Pen Slough built?

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

What condition is SR-72 over Cow Pen Slough 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 January 2025.

How much traffic does SR-72 over Cow Pen Slough carry?

About 7,800 vehicles per day (2025 count), of which roughly 16% are trucks.

How long is SR-72 over Cow Pen Slough?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns SR-72 over Cow Pen Slough?

It is owned by the State Highway Agency.