US Bridges

I 110 Outer Loop over US 90

Good

Harrison County, Mississippi · JCT US 90 & I 110 · Structure no. 17001100240000B

Built
1988
37 years old
Condition
Good
inspected December 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
2,679 ft
12 main spans
Daily traffic
5,200
2023 count
Owner
State
State Highway Agency

About this bridge

I 110 Outer Loop over US 90 is a prestressed concrete continuous segmental box girder carrying I 110 Outer Loop over US 90 in Harrison County, Mississippi. It was built in 1988, so it is 37 years old, younger 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 5,200 vehicles a day, roughly 18% of them trucks, projected to reach 5,200 by 2043. The structure is 2,679 ft (816.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 110 Outer Loop
CrossesUS 90
LocationJCT US 90 & I 110
RouteInterstate 110
Coordinates30.39401, -88.89691
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 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 alignment6: Equal to present minimum criteria
Operating rating62.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans12 (+14 approach)
Design loadHS 20
Structure length2,679 ft (816.5 m)
Longest span179 ft (54.7 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2023)
Projected traffic5,200 by 2043
Trucks18%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 110 Outer Loop over US 90 built?

It was built in 1988, making it 37 years old in 2025.

What condition is I 110 Outer Loop over US 90 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 December 2023.

How much traffic does I 110 Outer Loop over US 90 carry?

About 5,200 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 110 Outer Loop over US 90?

The structure is 2,679 ft (816.5 m) long with a longest span of 179 ft (54.7 m) and a deck 29 ft wide.

Who owns I 110 Outer Loop over US 90?

It is owned by the State Highway Agency.