US Bridges

CR 694/78th Ave over Intracoastal Waterway

Fair

Pinellas County, Florida · 0.1 Mile E of Gulf Blvd · Structure no. 154355

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Movable - Bascule
Steel
Length
1,691 ft
1 main span
Daily traffic
14,800
2023 count
Owner
County
County Highway Agency

About this bridge

CR 694/78th Ave over Intracoastal Waterway is a steel movable - bascule carrying CR 694/78th Ave over Intracoastal Waterway in Pinellas County, Florida. It was built in 1981, so it is 44 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 14,800 vehicles a day, roughly 4% of them trucks, projected to reach 18,500 by 2042. The structure is 1,691 ft (515.4 m) long and 87 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR 694/78th Ave
CrossesIntracoastal Waterway
Location0.1 Mile E of Gulf Blvd
RouteCounty Highway 694
CountyPinellas County
StateFlorida
Coordinates27.84392, -82.83819
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.6 US tons
Inventory rating35.6 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+29 approach)
Design loadHS 20 + Mod
Structure length1,691 ft (515.4 m)
Longest span116 ft (35.4 m)
Deck width87 ft (26.4 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic14,800 (2023)
Projected traffic18,500 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was CR 694/78th Ave over Intracoastal Waterway built?

It was built in 1981, making it 44 years old in 2025.

What condition is CR 694/78th Ave over Intracoastal Waterway 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 July 2023.

How much traffic does CR 694/78th Ave over Intracoastal Waterway carry?

About 14,800 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is CR 694/78th Ave over Intracoastal Waterway?

The structure is 1,691 ft (515.4 m) long with a longest span of 116 ft (35.4 m) and a deck 87 ft wide.

Who owns CR 694/78th Ave over Intracoastal Waterway?

It is owned by the County Highway Agency.