US Bridges

US0371 over Icg RR @ Sibley

PoorPosted for load

Webster Parish, Louisiana · .1 MI South of LA 164 · Structure no. 046000270309511

Built
1935
90 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
3 main spans
Daily traffic
6,469
2021 count
Owner
State
State Highway Agency

About this bridge

US0371 over Icg RR @ Sibley is a steel stringer/multi-beam or girder carrying US0371 over Icg RR @ Sibley in Webster Parish, Louisiana. It was built in 1935, so it is 90 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. Its operating status is: posted for load restriction.

It carries about 6,469 vehicles a day, roughly 26% of them trucks, projected to reach 7,115 by 2041. The structure is 122 ft (37.2 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesUS0371
CrossesIcg RR @ Sibley
Location.1 MI South of LA 164
RouteU.S. Route 371
CountyWebster Parish
StateLouisiana
Coordinates32.53936, -93.2959
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.6 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length122 ft (37.2 m)
Longest span40 ft (12.2 m)
Deck width37 ft (11.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,469 (2021)
Projected traffic7,115 by 2041
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$592,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0371 over Icg RR @ Sibley built?

It was built in 1935, making it 90 years old in 2025.

What condition is US0371 over Icg RR @ Sibley 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 May 2023.

How much traffic does US0371 over Icg RR @ Sibley carry?

About 6,469 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is US0371 over Icg RR @ Sibley?

The structure is 122 ft (37.2 m) long with a longest span of 40 ft (12.2 m) and a deck 37 ft wide.

Who owns US0371 over Icg RR @ Sibley?

It is owned by the State Highway Agency.