US Bridges

I0110 over City Streets

Fair

East Baton Rouge Parish, Louisiana · 1.5 M S of I-110&US 61 · Structure no. 611704509203041

Built
1970
55 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
11,549 ft
171 main spans
Daily traffic
64,059
2021 count
Owner
State
State Highway Agency

About this bridge

I0110 over City Streets is a steel stringer/multi-beam or girder carrying I0110 over City Streets in East Baton Rouge Parish, Louisiana. It was built in 1970, so it is 55 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 64,059 vehicles a day, roughly 9% of them trucks, projected to reach 70,464 by 2041. The structure is 11,549 ft (3,520.1 m) long and 46 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesI0110
CrossesCity Streets
Location1.5 M S of I-110&US 61
RouteInterstate 110
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.47283, -91.16681
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating24.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans171
Design loadHS 20
Structure length11,549 ft (3,520.1 m)
Longest span116 ft (35.4 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,059 (2021)
Projected traffic70,464 by 2041
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed98.8 mi (159 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$45 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0110 over City Streets built?

It was built in 1970, making it 55 years old in 2025.

What condition is I0110 over City Streets 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 I0110 over City Streets carry?

About 64,059 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I0110 over City Streets?

The structure is 11,549 ft (3,520.1 m) long with a longest span of 116 ft (35.4 m) and a deck 46 ft wide.

Who owns I0110 over City Streets?

It is owned by the State Highway Agency.