US Bridges

I0020 over Marshall ST&LA&KCI-20

Poor

Caddo Parish, Louisiana · I-20 Ramp to LA 1 · Structure no. 040904510118986

Built
1965
60 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
814 ft
11 main spans
Daily traffic
87,567
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over Marshall ST&LA&KCI-20 is a steel continuous stringer/multi-beam or girder carrying I0020 over Marshall ST&LA&KCI-20 in Caddo Parish, Louisiana. It was built in 1965, so it is 60 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 87,567 vehicles a day, roughly 19% of them trucks, projected to reach 96,323 by 2041. The structure is 814 ft (248.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI0020
CrossesMarshall ST&LA&KCI-20
LocationI-20 Ramp to LA 1
RouteInterstate 20
CountyCaddo Parish
StateLouisiana
Coordinates32.50975, -93.74377
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length814 ft (248.1 m)
Longest span130 ft (39.6 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic87,567 (2021)
Projected traffic96,323 by 2041
Trucks19%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.9 mi (3 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 I0020 over Marshall ST&LA&KCI-20 built?

It was built in 1965, making it 60 years old in 2025.

What condition is I0020 over Marshall ST&LA&KCI-20 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does I0020 over Marshall ST&LA&KCI-20 carry?

About 87,567 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is I0020 over Marshall ST&LA&KCI-20?

The structure is 814 ft (248.1 m) long with a longest span of 130 ft (39.6 m) and a deck 33 ft wide.

Who owns I0020 over Marshall ST&LA&KCI-20?

It is owned by the State Highway Agency.