US Bridges

CR77A over I10 SR8

Fair

Washington County, Florida · 0.8MI East of SR77 · Structure no. 610067

Built
1974
51 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
244 ft
4 main spans
Daily traffic
1,600
2022 count
Owner
State
State Highway Agency

About this bridge

CR77A over I10 SR8 is a prestressed concrete stringer/multi-beam or girder carrying CR77A over I10 SR8 in Washington County, Florida. It was built in 1974, so it is 51 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 5 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 1,600 vehicles a day, roughly 10% of them trucks, projected to reach 2,776 by 2044. The structure is 244 ft (74.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR77A
CrossesI10 SR8
Location0.8MI East of SR77
RouteCounty Highway 77A
StateFlorida
Coordinates30.74639, -85.5375
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length244 ft (74.4 m)
Longest span88 ft (26.8 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic2,776 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR77A over I10 SR8 built?

It was built in 1974, making it 51 years old in 2025.

What condition is CR77A over I10 SR8 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 November 2024.

How much traffic does CR77A over I10 SR8 carry?

About 1,600 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is CR77A over I10 SR8?

The structure is 244 ft (74.4 m) long with a longest span of 88 ft (26.8 m) and a deck 34 ft wide.

Who owns CR77A over I10 SR8?

It is owned by the State Highway Agency.