US Bridges

Old Coachman Road over Alligator Creek

Fair

Pinellas County, Florida · 0.5 MI N of Drew Street · Structure no. 154252

Built
1925
100 years old
Condition
Fair
inspected September 2023
Type
Arch - Deck
Concrete
Length
24 ft
1 main span
Daily traffic
8,900
2023 count
Owner
County
County Highway Agency

About this bridge

Old Coachman Road over Alligator Creek is a concrete arch - deck carrying Old Coachman Road over Alligator Creek in Pinellas County, Florida. It was built in 1925, so it is 100 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 8,900 vehicles a day, roughly 4% of them trucks, projected to reach 5,442 by 2042. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Coachman Road
CrossesAlligator Creek
Location0.5 MI N of Drew Street
RouteCounty Highway 0
StateFlorida
Coordinates27.97547, -82.73428
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width23 ft (7 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2023)
Projected traffic5,442 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Coachman Road over Alligator Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is Old Coachman Road over Alligator Creek 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 September 2023.

How much traffic does Old Coachman Road over Alligator Creek carry?

About 8,900 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Old Coachman Road over Alligator Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 23 ft wide.

Who owns Old Coachman Road over Alligator Creek?

It is owned by the County Highway Agency.