US Bridges

Donegan Road over Seminole Canal

Good

Pinellas County, Florida · 0.1 MI West of Lake Ave · Structure no. 154350

Built
1970
55 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
3,700
2023 count
Owner
County
County Highway Agency

About this bridge

Donegan Road over Seminole Canal is a concrete culvert carrying Donegan Road over Seminole Canal in Pinellas County, Florida. It was built in 1970, so it is 55 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 3,700 vehicles a day, roughly 4% of them trucks, projected to reach 6,420 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDonegan Road
CrossesSeminole Canal
Location0.1 MI West of Lake Ave
RouteCounty Highway 0
CountyPinellas County
StateFlorida
Coordinates27.90189, -82.77258
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2023)
Projected traffic6,420 by 2042
Trucks4%
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 Donegan Road over Seminole Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is Donegan Road over Seminole 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 September 2023.

How much traffic does Donegan Road over Seminole Canal carry?

About 3,700 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Donegan Road over Seminole Canal?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Donegan Road over Seminole Canal?

It is owned by the County Highway Agency.