US Bridges

LA1231-2 over Port De Luce Creek

Poor

Winn Parish, Louisiana · 0.71 Mi. East of US 167 · Structure no. 086408640300711

Built
1983
42 years old
Condition
Poor
inspected September 2023
Type
Slab
Concrete
Length
361 ft
19 main spans
Daily traffic
116
2021 count
Owner
State
State Highway Agency

About this bridge

LA1231-2 over Port De Luce Creek is a concrete slab carrying LA1231-2 over Port De Luce Creek in Winn Parish, Louisiana. It was built in 1983, so it is 42 years old, younger 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 116 vehicles a day, roughly 8% of them trucks, projected to reach 127 by 2041. The structure is 361 ft (110 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA1231-2
CrossesPort De Luce Creek
Location0.71 Mi. East of US 167
RouteState Highway 1231
Coordinates31.93706, -92.6327
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans19
Design loadHS 20
Structure length361 ft (110 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic116 (2021)
Projected traffic127 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1231-2 over Port De Luce Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA1231-2 over Port De Luce 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 September 2023.

How much traffic does LA1231-2 over Port De Luce Creek carry?

About 116 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA1231-2 over Port De Luce Creek?

The structure is 361 ft (110 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA1231-2 over Port De Luce Creek?

It is owned by the State Highway Agency.