US Bridges

I 10 Ramp over Bernard Bayou

Good

Harrison County, Mississippi · At JCT of US 49 I 10 · Structure no. 17000100240359A

Built
1969
56 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
500 ft
3 main spans
Daily traffic
5,700
2023 count
Owner
State
State Highway Agency

About this bridge

I 10 Ramp over Bernard Bayou is a concrete continuous box beam or girders - single or spread carrying I 10 Ramp over Bernard Bayou in Harrison County, Mississippi. It was built in 1969, so it is 56 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,700 vehicles a day, roughly 18% of them trucks, projected to reach 5,700 by 2043. The structure is 500 ft (152.4 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 10 Ramp
CrossesBernard Bayou
LocationAt JCT of US 49 I 10
RouteInterstate 10
Coordinates30.43405, -89.09037
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating56 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+7 approach)
Design loadHS 20 + Mod
Structure length500 ft (152.4 m)
Longest span90 ft (27.4 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2023)
Projected traffic5,700 by 2043
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 I 10 Ramp over Bernard Bayou built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 10 Ramp over Bernard Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does I 10 Ramp over Bernard Bayou carry?

About 5,700 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 10 Ramp over Bernard Bayou?

The structure is 500 ft (152.4 m) long with a longest span of 90 ft (27.4 m) and a deck 32 ft wide.

Who owns I 10 Ramp over Bernard Bayou?

It is owned by the State Highway Agency.