US Bridges

I0020 over Spring St/La 1

Fair

Caddo Parish, Louisiana · I-20 Ramp to LA 1 · Structure no. 040904510119175

Built
1965
60 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
807 ft
11 main spans
Daily traffic
9,690
2016 count
Owner
State
State Highway Agency

About this bridge

I0020 over Spring St/La 1 is a steel continuous stringer/multi-beam or girder carrying I0020 over Spring St/La 1 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 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 9,690 vehicles a day, roughly 19% of them trucks, projected to reach 10,659 by 2036. The structure is 807 ft (246 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesI0020
CrossesSpring St/La 1
LocationI-20 Ramp to LA 1
RouteInterstate 20
CountyCaddo Parish
StateLouisiana
Coordinates32.50986, -93.7427
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.
Last inspectionJuly 2023
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 geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.5 US tons
Inventory rating20.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length807 ft (246 m)
Longest span130 ft (39.6 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deck40 ft (12.2 m)

Traffic and service

Average daily traffic9,690 (2016)
Projected traffic10,659 by 2036
Trucks19%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
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$3.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0020 over Spring St/La 1 built?

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

What condition is I0020 over Spring St/La 1 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 2023.

How much traffic does I0020 over Spring St/La 1 carry?

About 9,690 vehicles per day (2016 count), of which roughly 19% are trucks.

How long is I0020 over Spring St/La 1?

The structure is 807 ft (246 m) long with a longest span of 130 ft (39.6 m) and a deck 35 ft wide.

Who owns I0020 over Spring St/La 1?

It is owned by the State Highway Agency.