US Bridges

I0110 over Convention St. Off Ramp

Fair

East Baton Rouge Parish, Louisiana · I0110 · Structure no. 611704509200517

Built
1963
62 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
477 ft
9 main spans
Daily traffic
4,381
2021 count
Owner
State
State Highway Agency

About this bridge

I0110 over Convention St. Off Ramp is a steel stringer/multi-beam or girder carrying I0110 over Convention St. Off 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 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 4,381 vehicles a day, roughly 9% of them trucks, projected to reach 4,819 by 2041. The structure is 477 ft (145.4 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
CrossesConvention St. Off Ramp
LocationI0110
RouteInterstate 110
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.44671, -91.17974
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length477 ft (145.4 m)
Longest span92 ft (28 m)
Deck width23 ft (6.9 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,381 (2021)
Projected traffic4,819 by 2041
Trucks9%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0110 over Convention St. Off Ramp built?

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

What condition is I0110 over Convention St. Off 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 July 2024.

How much traffic does I0110 over Convention St. Off Ramp carry?

About 4,381 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I0110 over Convention St. Off Ramp?

The structure is 477 ft (145.4 m) long with a longest span of 92 ft (28 m) and a deck 23 ft wide.

Who owns I0110 over Convention St. Off Ramp?

It is owned by the State Highway Agency.