US Bridges

I0110 over Main St. on Ramp

Fair

East Baton Rouge Parish, Louisiana · I0110 · Structure no. 611704509200786

Built
1963
62 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
337 ft
7 main spans
Daily traffic
8,250
2021 count
Owner
State
State Highway Agency

About this bridge

I0110 over Main St. on Ramp is a steel stringer/multi-beam or girder carrying I0110 over Main St. on Ramp in East Baton Rouge Parish, Louisiana. It was built in 1963, so it is 62 years old, older than the Louisiana average of 43 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 8,250 vehicles a day, roughly 7% of them trucks, projected to reach 9,075 by 2041. The structure is 337 ft (102.7 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI0110
CrossesMain St. on Ramp
LocationI0110
RouteInterstate 110
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.45093, -91.1808
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length337 ft (102.7 m)
Longest span59 ft (18 m)
Deck width23 ft (6.9 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,250 (2021)
Projected traffic9,075 by 2041
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0110 over Main St. on Ramp built?

It was built in 1963, making it 62 years old in 2025.

What condition is I0110 over Main St. on Ramp 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 I0110 over Main St. on Ramp carry?

About 8,250 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I0110 over Main St. on Ramp?

The structure is 337 ft (102.7 m) long with a longest span of 59 ft (18 m) and a deck 23 ft wide.

Who owns I0110 over Main St. on Ramp?

It is owned by the State Highway Agency.