US Bridges

I0020 over Stl&sw-Kcs Rr/Westerfiel

Poor

Bossier Parish, Louisiana · 1.04 MI East LA 1 · Structure no. 040804510201031

Built
1966
59 years old
Condition
Poor
inspected November 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
648 ft
7 main spans
Daily traffic
69,892
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over Stl&sw-Kcs Rr/Westerfiel is a steel continuous girder and floorbeam system carrying I0020 over Stl&sw-Kcs Rr/Westerfiel in Bossier Parish, Louisiana. It was built in 1966, so it is 59 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 69,892 vehicles a day, roughly 19% of them trucks, projected to reach 76,881 by 2041. The structure is 648 ft (197.5 m) long and 57 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI0020
CrossesStl&sw-Kcs Rr/Westerfiel
Location1.04 MI East LA 1
RouteInterstate 20
CountyBossier Parish
StateLouisiana
Coordinates32.51376, -93.723
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22.5 US tons
Inventory rating17.2 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length648 ft (197.5 m)
Longest span114 ft (34.7 m)
Deck width57 ft (17.5 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69,892 (2021)
Projected traffic76,881 by 2041
Trucks19%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed3.1 mi (5 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$3.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0020 over Stl&sw-Kcs Rr/Westerfiel built?

It was built in 1966, making it 59 years old in 2025.

What condition is I0020 over Stl&sw-Kcs Rr/Westerfiel 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 November 2023.

How much traffic does I0020 over Stl&sw-Kcs Rr/Westerfiel carry?

About 69,892 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is I0020 over Stl&sw-Kcs Rr/Westerfiel?

The structure is 648 ft (197.5 m) long with a longest span of 114 ft (34.7 m) and a deck 57 ft wide.

Who owns I0020 over Stl&sw-Kcs Rr/Westerfiel?

It is owned by the State Highway Agency.