US Bridges

LA0008 over Big Creek

PoorPosted for load

Grant Parish, Louisiana · 3.02 Mi. East of US 165 · Structure no. 082200400303021

Built
1968
57 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete
Length
760 ft
40 main spans
Daily traffic
1,590
2021 count
Owner
State
State Highway Agency

About this bridge

LA0008 over Big Creek is a concrete slab carrying LA0008 over Big Creek in Grant Parish, Louisiana. It was built in 1968, so it is 57 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 3 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 1,590 vehicles a day, roughly 14% of them trucks, projected to reach 1,749 by 2041. The structure is 760 ft (231.6 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLA0008
CrossesBig Creek
Location3.02 Mi. East of US 165
RouteState Highway 8
Coordinates31.52375, -92.3615
Functional classRural Major Collector

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans40
Design loadH 15
Structure length760 ft (231.6 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,590 (2021)
Projected traffic1,749 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0008 over Big Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is LA0008 over Big Creek 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 October 2024.

How much traffic does LA0008 over Big Creek carry?

About 1,590 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0008 over Big Creek?

The structure is 760 ft (231.6 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns LA0008 over Big Creek?

It is owned by the State Highway Agency.