US Bridges

I10 SR8 over Perdido River

Fair

Escambia County, Florida · Alabama-Florida Line · Structure no. 480081

Built
1966
59 years old, rebuilt 1993
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,170 ft
13 main spans
Daily traffic
18,000
2022 count
Owner
State
State Highway Agency

About this bridge

I10 SR8 over Perdido River is a prestressed concrete stringer/multi-beam or girder carrying I10 SR8 over Perdido River in Escambia County, Florida. It was built in 1966 and reconstructed in 1993, so it is 59 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 18,000 vehicles a day, roughly 13% of them trucks, projected to reach 31,230 by 2044. The structure is 1,170 ft (356.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI10 SR8
CrossesPerdido River
LocationAlabama-Florida Line
RouteInterstate 10
StateFlorida
Coordinates30.57356, -87.41243
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating85 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20 + Mod
Structure length1,170 ft (356.6 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2022)
Projected traffic31,230 by 2044
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I10 SR8 over Perdido River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1993.

What condition is I10 SR8 over Perdido River 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 April 2023.

How much traffic does I10 SR8 over Perdido River carry?

About 18,000 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is I10 SR8 over Perdido River?

The structure is 1,170 ft (356.6 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns I10 SR8 over Perdido River?

It is owned by the State Highway Agency.