US Bridges

US0371 over I-20

Fair

Webster Parish, Louisiana · US 371 over I-20 · Structure no. 046000270313111

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
375 ft
3 main spans
Daily traffic
9,864
2021 count
Owner
State
State Highway Agency

About this bridge

US0371 over I-20 is a steel stringer/multi-beam or girder carrying US0371 over I-20 in Webster Parish, Louisiana. It was built in 1985, so it is 40 years old, younger 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 5 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 9,864 vehicles a day, roughly 10% of them trucks, projected to reach 10,850 by 2041. The structure is 375 ft (114.3 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0371
CrossesI-20
LocationUS 371 over I-20
RouteU.S. Route 371
CountyWebster Parish
StateLouisiana
Coordinates32.58911, -93.2938
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadHS 20
Structure length375 ft (114.3 m)
Longest span90 ft (27.4 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,864 (2021)
Projected traffic10,850 by 2041
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 US0371 over I-20 built?

It was built in 1985, making it 40 years old in 2025.

What condition is US0371 over I-20 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 September 2023.

How much traffic does US0371 over I-20 carry?

About 9,864 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0371 over I-20?

The structure is 375 ft (114.3 m) long with a longest span of 90 ft (27.4 m) and a deck 51 ft wide.

Who owns US0371 over I-20?

It is owned by the State Highway Agency.