US Bridges

I10 SR8 over SR77

Fair

Washington County, Florida · 2.5MI. S. of US90 SR10 · Structure no. 610071

Built
1975
50 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
4 main spans
Daily traffic
11,500
2022 count
Owner
State
State Highway Agency

About this bridge

I10 SR8 over SR77 is a prestressed concrete stringer/multi-beam or girder carrying I10 SR8 over SR77 in Washington County, Florida. It was built in 1975, so it is 50 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 11,500 vehicles a day, roughly 35% of them trucks, projected to reach 19,952 by 2044. The structure is 212 ft (64.6 m) long and 43 ft wide.

CarriesI10 SR8
CrossesSR77
Location2.5MI. S. of US90 SR10
RouteInterstate 10
StateFlorida
Coordinates30.74784, -85.55186
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length212 ft (64.6 m)
Longest span71 ft (21.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2022)
Projected traffic19,952 by 2044
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I10 SR8 over SR77 built?

It was built in 1975, making it 50 years old in 2025.

What condition is I10 SR8 over SR77 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 May 2023.

How much traffic does I10 SR8 over SR77 carry?

About 11,500 vehicles per day (2022 count), of which roughly 35% are trucks.

How long is I10 SR8 over SR77?

The structure is 212 ft (64.6 m) long with a longest span of 71 ft (21.7 m) and a deck 43 ft wide.

Who owns I10 SR8 over SR77?

It is owned by the State Highway Agency.